Contact us today:
(847) 934-4500
tdaro@bernardandcompany.com
Contact us today:
(847) 934-4500
tdaro@bernardandcompany.com
DATE: Thursday, September 11
TIME 3:15 PM – 4:10 PM
ROOM: W-193B
Abstract
With Motion Control being added to all areas and levels of machines, it is becoming common place to see more and more servos in the latest designs. Increased cost position, both upfront and operational, along with the leapfrog in usability of servos, have been major drives in this adaption outside of the obvious productivity benefits. In this session we will look at emerging trends revolving around cabling and encoders for servomotors that are leading this innovation.
We will first look at using field replaceable encoders for servomotors which have greatly improved the on-site serviceability. Next, we will discuss benefits of using digital communications for encoder signals and built-in electronic type plate technology, which has provided plug-and-play commissioning for servo systems. This discussion would not be complete without exploring the single cable approach for both encoder and motor power, and what this emerging trend will mean for future machine designs.
Click here to view the Conference Details on the IMTS Website.
Click here to add Siemens to your IMTS Show Planner! BOOTH E-5010
Speaker Biography
Craig Nelson is the product marketing manager for SINAMICS high performance servo and vector drives in the Motion Control Business of Siemens Industry, Inc. Craig has been with Siemens for over twenty years and, in previous roles, has held engineering positions in the field and in system design. He has expert knowledge of AC and DC drives across various applications and is an avid promoter and presenter of new motor and drive technologies.
Please forward all inquiries to:
SIEMENS INDUSTRY, INC.
DRIVE TECHNOLOGIES
MOTION CONTROL
MACHINE TOOL BUSINESS
390 Kent Avenue
Elk Grove Village, IL 60007
Phone: 847-640-1595
Fax: 847-437-0784
Web: www.usa.siemens.com/cnc
Email: SiemensMTBUMarCom.sea@siemens.com
Attention: John Meyer, Manager, Marketing Communication
Follow us on Facebook: www.facebook.com/SiemensCNC or Twitter: www.twitter.com/siemens_cnc_us.
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Siemens Industry Sector is the world’s leading supplier of innovative and environmentally friendly products, solutions and services for industrial customers. With end-to-end automation technology and industrial software, solid vertical-market expertise, and technology-based services, the sector enhances its customers’ productivity, efficiency and flexibility. With a global workforce of more than 100,000 employees, the Industry Sector comprises the Industry Automation, Drive Technologies and Customer Services Divisions as well as the Metals Technologies Business Unit. For more information, visit http://www.usa.siemens.com/industry.
The Siemens Drive Technologies Division is the world’s leading supplier of products, systems, applications, solutions and services for the entire drive train, with electrical and mechanical components. Drive Technologies serves all vertical markets in the production and process industries as well as the infrastructure/energy segment. With its products and solutions, the division enables its customers to achieve productivity, energy efficiency and reliability. For more information, visit http://www.usa.siemens.com/drivetechnologies.
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Did you miss Siemens at AeroDef 2014? Here’s what you missed!
Technology breakthroughs establish new flexibility and productivity paradigms for working with 2D data and massive assemblies. New functionality expands NX leadership in freeform shape design, PLM integration, and product development decision making.
AeroDef 2014 – The latest version of Siemens NX™ software (NX 9) includes new capabilities and technological breakthroughs that deliver enhanced product development flexibility and up to five times higher productivity across multiple industries. New tools like synchronous technology for 2D greatly facilitate 2D data editing. The introduction of fourth generation design (4GD) technology will enhance design productivity for massive assemblies.
And NX Realize Shape™ software delivers a new state-of-the-art freeform design toolset with unmatched product development integration. NX 9 also includes tighter PLM integration through Siemens’ Active Workspace environment, as well as multiple enhancements throughout the integrated CAD/CAM/CAE solution. The enhancements in NX 9 are aimed at creating value by addressing issues common to multiple industries such as automotive, aerospace, shipbuilding, consumer products, machinery and others.
“NX 9 represents a very significant step forward for Siemens, our customers, and for product development in general,” said Jim Rusk, senior vice president, Product Engineering Software, Siemens PLM Software. “With significant new breakthroughs such as synchronous technology for 2D, 4GD and NX Realize Shape, we are offering our customers unprecedented design flexibility while significantly increasing their product development productivity. And by leveraging our successful Active Workspace solution, we are enhancing the high definition user experience that helps our customers make smarter decisions that result in better products.”
While 3D modeling is the preferred method of product design throughout the world,
2D drawings and 2D product data – in a wide variety of digital formats – are still used in virtually every industry in some aspects of product development. Unfortunately, due to incompatible data structures and inconsistent CAD technology, working with these 2D files is typically tedious and time consuming. Synchronous technology for 2D eliminates these problems by adding intelligence to 2D data without the need for translation, enabling users to intuitively edit multi-CAD 2D files up to five times faster. This can be particularly useful for industries such as automotive, aerospace, machinery and others with large amounts of legacy 2D product data.
“Siemens’ synchronous technology for 2D is a Next Generation 2D tool that ad- dresses many of the downfalls of drafting and sketching,” said Chad Jackson, Principal Analyst for Lifecycle Insights, a leading PLM research and advisory firm. “It ‘understands’ the geometric relationships inherent in 2D drawings and applies user-controlled assumptions at the point of change to enable intelligent modifications. It also applies these assumptions locally instead of globally to ensure fast performance.”
The new NX Realize Shape offering in NX 9 provides a unique freeform design environment for producing products with highly stylized shapes or complex surfaces. It is the industry’s only solution that seamlessly integrates the most advanced, easy-to-use, flexible tools for performing freeform design, with a leading CAD/CAM/CAE software package. As a result, companies producing a wide variety of consumer products – as well as those in the aerospace, medical and marine industries – can shorten product development time by eliminating the multiple steps associated with using separate tools for freeform design and engineering development.
Hundreds of additional enhancements throughout NX 9 touch every aspect of CAD, CAM and CAE. The introduction of 4GD, a new design and data management paradigm that enables versatile and efficient methods for collaboration and design-in- context, accelerates the development of complex large-scale products containing millions of components. The embedding of Active Workspace 2.0, the innovative new interface to Siemens’ Teamcenter® software, enables NX 9 users to quickly find relevant information – parts, tasks, workflows, requirements and specifications – even from multiple external data sources.
New NX CAE tools improve thermal simulation of aircraft engines, reducing the time to setup complex boundary conditions by 75 percent. A new NX CAE parallel thermal solver provides improved performance on large-scale models delivering faster results. Enhancements in NX Nastran® software, the premier FEA solver for computational performance, accuracy, and scalability, enable noise, vibration and harshness (NVH) simulation times to be cut in half.
New capabilities in NX for manufacturing provide enhanced control for faster and more flexible CAM and CMM programming. For die/mold machining, the new cut region management capability provides graphical user interaction for more efficient programming, up to 40 percent faster for some complex parts, and precise control over machining strategies. The new multiple-part programming capability lets programmers reuse machining sequences across any number of similar parts in a setup. For example, a setup with six identical parts can be programmed up to four times faster. The new MRL Connect for NX, connects NX CAM directly to the Manufacturing Resource Library (MRL) in Teamcenter to give programmers easy access to a shared library of standard tools, fixtures, and templates. The CMM Inspection Programming capabilities have been expanded beyond solids to support sheet metal parts, delivering manufacturers in the aerospace and defense, high tech electronics, and automotive industries a highly automated inspection programming solution.
NX 9 is available immediately. For more detailed information on all the new functionality in NX 9, please visit www.siemens.com/plm/nx9.
Download this article as a PDF: NX 9
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About Siemens PLM Software
Siemens PLM Software, a business unit of the Siemens Industry Automation Division, is a leading global provider of product lifecycle management (PLM) software and services with seven million licensed seats and more than 71,000 customers worldwide. Headquartered in Plano, Texas, Siemens PLM Software works collaboratively with companies, delivering open solutions to help them make smarter decisions that result in better products. For more information on Siemens PLM Software products and services, visit www.siemens.com/plm
For more information on Siemens SINUMERIK CNC, visit www.usa.siemens.com/cnc.
For specific product information and inquiries, call (800) 879-8079 ext. Marketing Communications or send an e-mail to: SiemensMTBUMarCom.industry@siemens.com.
Follow us on Facebook: www.facebook.com/SiemensCNC or Twitter: www.twitter.com/siemens_cnc_us.
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Siemens Industry Sector is the world’s leading supplier of innovative and environmentally friendly products, solutions and services for industrial customers. With end-to-end automation technology and industrial software, solid vertical-market expertise, and technology-based services, the sector enhances its customers’ productivity, efficiency and flexibility. With a global workforce of more than 100,000 employees, the Industry Sector comprises the Industry Automation, Drive Technologies and Customer Services Divisions as well as the Metals Technologies Business Unit. For more information, visit http://www.usa.siemens.com/industry.
The Siemens Drive Technologies Division is the world’s leading supplier of products, systems, applications, solutions and services for the entire drive train, with electrical and mechanical components. Drive Technologies serves all vertical markets in the production and process industries as well as the infrastructure/energy segment. With its products and solutions, the division enables its customers to achieve productivity, energy efficiency and reliability. For more information, visit http://www.usa.siemens.com/drivetechnologies.
Continue readingTurning-milling centers with coordinated drive and CNC engineering achieve superior accuracy and repeatability
Hamuel CEO Dr. Markus Stanik (right) and his sales manager Jochen Schaede agree: “The Sinumerik 840D sl CNC complements perfectly the capabilities of our five-axis turning-milling centers in the HSTM Series. Because of this fact, we can usually convince leading turbine manufacturers from the aerospace and automotive industries about the dynamics, high-performance and precision of these machines.”
The complete machining of turbine blades requires striking a balance between powerful roughing and ultra-precise finishing, a task for which the modern five-axis turning-milling centers are ideal, when robust machine construction is combined with high-quality drive and control engineering. Experience is the solid basis on which the Hamuel Maschinenbau GmbH & Co. KG, Meeder, Germany, can offer a great deal: with 85 years of machine tool manufacturing, 35 years of CNC machining, 25 years of five-axis simultaneous machining and over 10 years in the construction of five-axis turning-milling centers. CEO Dr. Markus Stanik knows that experience by itself cannot be any yardstick for the quality of machine tools, noting, “It certainly helps us, together with the right partner companies, to design and build the machines so that our customers can be successful in the marketplace.” This machine builder and its many customers have developed correspondingly positive accomplishments together. Today, Hamuel stands on three standards:
The latter, as evidenced by Hamuel’s HSTM (high-speed turning-milling) series, has been marketed since 1999 and makes a decisive contribution to the sales and success of the company. Leading turbine manufacturers from the aerospace and power-generating industries have been particularly impressed by the dynamic response, capability and precision of these machines. Even the smallest faults are unacceptable on turbine blades
Form deviations are unacceptable for products such as turbine blades and blisks because even the smallest error would significantly reduce the efficiency of the power plant or aircraft turbine.
The HSTM that runs on the Sinumerik 840D sl CNC controllers is used mainly to manufacture turbine blades and blisks (turbine disks) deployed in stationary steam and gas turbines as well as in mobile turbines for aircraft jet engines and large turbochargers. These products always consist of high-strength materials, such as titanium or high-alloyed steels. Form deviations are taboo in such applications, because even the smallest error would significantly reduce the efficiency of the turbines. Correspondingly high and comprehensive are the requirements placed on the machine tools. Hamuel sales manager, Dipl.-Ing. Jochen Schaede, explains: “Our customers normally manufacture large turbine blades longer than approximately 1000 mm from forging blanks. In contrast, shorter workpieces are milled from a solid piece of material with a stock-removal ratio of approximately 80 percent. This makes it obvious that our machines must not only rough-cut very productively but also finish with high precision.” Whereas productivity takes precedence for rough-cutting, accuracy is more important for the subsequent finishing of the spatial free-form surfaces. “With regard to accuracy, our high-performance machining centers achieve a precision in the micrometer range coupled with excellent surface quality,” added Schaede.
Form deviations are unacceptable for products such as turbine blades and blisks because even the smallest error would significantly reduce the efficiency of the power plant or aircraft turbine.
Key to this capability is the combination of compact machine construction together with perfectly matched drive and control engineering. The basis is the robust machine design with a one-piece machine base – either as welded construction cast with special concrete or latterly directly as polymer-concrete made from a single piece of material. The careful distribution of the masses ensures the best dynamic rigidity. The experience of the developers at Hamuel paired with the knowledge of the Siemens mechatronic experts make such results possible, as Jochen Schaede confirmed: “Thanks to various simulation tools, the Siemens engineers could provide us with very exact data to which we could add or remove masses. It was certainly advantageous that we could procure all components required for the dynamics from Siemens starting with the spindle, including the axis drives, and ending with the CNC. This means we needed only a few iteration loops in order to obtain a perfect dynamic rigidity in the machines.” It is also important that all components are arranged so that the horizontally clamped turbine blades and blisks can be machined optimally. This is also facilitated by the 45°-inclined orientation of the axes that ensures a favorable swarf removal further augmented by the permanent rinsing of the machine internal area. The accessibility has also been enhanced by this inclined axis orientation. Such designed and built HSTM machines equipped with precise direct drives from Siemens achieve a maximum positioning accuracy of 5 µm with traversal speeds exceeding 40 m/min in all linear axes. Indeed, the extremely fast rotary axes have a positioning accuracy of 3 µm. This allows the user to achieve maximum productivity, accuracy and surface finishes in the range of Ra = 0.8 µm, and so fully meet the industry requirements placed on the blade machining. CNC ensures optimized surface transitions at the inlet and outlet edges One of the biggest challenges for the turbine-blade manufacturing industry concerns the critical surface transitions (leading and trailing edges) of the turbine blades. To achieve a high quality, the milling paths described with curve interpolation points must have a constant machining speed. As a consequence, the leading and trailing edges demand extreme angular accelerations. The number of curve interpolation points to be described is correspondingly quite high.
The manufacturing of precise free-form surfaces for turbine blades demands the highest performance from the CNC. The excellent block-cycle times of the Sinumerik 840D sl and its look-ahead function improved as part of the new “Advanced Surface” motion control, which play a significant role here.
The controller now faces the challenge to reliably process the generated NC steps that are supported by the fast block cycle times and the look-ahead function of the CNC. “Hardly any other controller can supply the drive information for all five axes in the required short time as reliably as the Sinumerik 840D sl controller,” confirmed Jochen Schaede, who added, “The new Advanced Surface motion control that includes among other things an optimized look-ahead function is also excellent. And I would also like to mention the five-axis high-speed turning-milling of free-form surfaces requires a continuous spatial reorientation of the geometry vectors.” This leads to the use of the Traori (transformation orientation) principle in the Sinumerik 840D sl. Hamuel’s customers can therefore achieve reproducible results with the best-possible surface finish, exact contour accuracy and with the maximum possible machining speed.
Despite being a high-end controller that offers many modern features, the Sinumerik 840D sl CNC is easy-to-use.
In addition to the primary properties of precision, productivity and reliability, Hamuel also appreciates other properties of the Siemens drive and control engineering – an example: the DRIVE-CLiQ interface. When this digital connection is used, all appropriately equipped drive components are detected automatically. Only a cable for the connection is required to achieve this result. Equivalent circuit diagram data for the motors and the characteristic values of the installed encoder systems are all stored. This avoids the need for manual data input during the commissioning and so makes this task more reliable and much faster, according to Hamuel engineers. Sales manager Schaede is also impressed with the “know-how” protection onboard the control. With the help of innovative software, his customers can protect all their programs and their application know-how, using individual passwords and so largely prevent unauthorized access. According to Hamuel, the Teleservice offered by Siemens has proven to be an important advantage for its machine users who often operate globally. It allows not only software problems to be rectified but also updates to be installed fast and reliably without needing to be present onsite. Manufacturing operations save time and money and they always remain up-to-date with the latest software releases, via this service. Powerful motor spindle with Hirth gearing
Leading turbine manufacturers are particularly impressed by the dynamics and high-performance of the HSTM machines. The perfect interaction of the robust Hamuel machine construction and the high-quality Siemens drive and control engineering provide the basis for this satisfaction.
The capability of the turning-milling center also depends greatly on the 54-kW motor spindle made by Weiss Spindeltechnologie GmbH (a Siemens subsidiary). Equipped with a HSK A63 tool holder, it is able to provide the high torque required for roughing plus speeds as high as 16,000 rpm for finishing. This means an optimum cutting speed is always guaranteed. As a practical detail, the Hamuel engineers also emphasize the integrated Hirth gearing that makes it possible to clamp the spindle and relieve load on the bearings during the turning process. The machine sizes in the HSTM Series are oriented to the length of the workpieces to be produced in standard ranges from ≤ 500 mm (HSTM 300) to 1750 mm (HSTM 1500). On special request, Hamuel also builds larger machines. A project for machining blades as large as 2500 mm in length is currently running in the field. CEO Markus Stanik explains, “Thanks to our modular machine construction, we are able to satisfy special requests and build turning-milling centers in these dimensions.”
The manufacturing of precise free-form surfaces for turbine blades demands the highest performance from the CNC. The excellent block-cycle times of the Sinumerik 840D sl and its look-ahead function improved as part of the new “Advanced Surface” motion control, which play a significant role here.
New developments already in the introductory phase are also evolving at Hamuel. For example, in the near future, a special gas will be able to be used to cool the tool in the HSTM machines. A machine base made of mineral casting is also now offered. One of the first machines of this type has already been presented at EMO. “This material not only exhibits excellent properties with regard to vibration suppression but we have also been able to reduce somewhat our dependency on steel suppliers,” noted Markus Stanik. For the machine user, this makes itself apparent directly in improved surface quality and a significantly longer tool service life. CNC gantry milling machines of the HSM (high-speed milling) series In addition to the component production and the construction of the HSTM series, the company’s HMS Series machines are another mainstay for Hamuel. These simultaneous five-axis machining centers are designed for high-speed cutting (HSC). They feature not only the modern Siemens drive and CNC control engineering, but also the optimized milling-head systems and the high-performance high-speed spindles, providing this capability. HSM machines allow high-performance roughing and ultra-precise finishing. With regard to the size of the HSM machines, the manufacturer adapts the designs specifically based on the customer requirements. As a component producer, Hamuel also has its own machines in constant use at its factory.
For more information about Siemens CNC solutions for the machine tool industry, visit our website: www.usa.siemens.com/cnc.
For more information on the this story, contact:
SIEMENS INDUSTRY, INC.
DRIVE TECHNOLOGIES
MOTION CONTROL
MACHINE TOOL BUSINESS
390 Kent Avenue
Elk Grove Village, IL 60007
Phone: 847-640-1595
Fax: 847-437-0784
Web: www.usa.siemens.com/cnc
Email: SiemensMTBUMarCom.sea@siemens.com
Attention: John Meyer, Manager, Marketing Communication
Follow us on Facebook: www.facebook.com/SiemensCNC or Twitter: www.twitter.com/siemens_cnc_us.
—
Siemens Industry Sector is the world’s leading supplier of innovative and environmentally friendly products, solutions and services for industrial customers. With end-to-end automation technology and industrial software, solid vertical-market expertise, and technology-based services, the sector enhances its customers’ productivity, efficiency and flexibility. With a global workforce of more than 100,000 employees, the Industry Sector comprises the Industry Automation, Drive Technologies and Customer Services Divisions as well as the Metals Technologies Business Unit.
The Siemens Drive Technologies Division is the world’s leading supplier of products, systems, applications, solutions and services for the entire drive train, with electrical and mechanical components. Drive Technologies serves all vertical markets in the production and process industries as well as the infrastructure/energy segment. With its products and solutions, the division enables its customers to achieve productivity, energy efficiency and reliability.
About Hamuel Maschinenbau GmbH & Co. KG, Meeder, Germany
Hamuel was founded in 1927 and is now part of the Hamuel Reichenbacher company group. More than 2000 CNC machines from this enterprise group are currently in use globally for the machining of a wide range of materials. The focus of Hamuel Maschinenbau comprises three areas: the production of machine-tool components, CNC gantry milling machines (HSM) and five-axis CNC turning-milling centers (HSTM).
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All motion controlled by mxAutomation directly through the Sinumerik CNC — simple to integrate, even easier to operate
CHICAGO — At this year’s International Manufacturing Technology Show (IMTS) in Chicago, Siemens will demonstrate its recent collaboration with KUKA Robotics. In the Siemens booth E-5010, a KUKA robot will be articulating parts, simulating the operation on a CNC machine tool. Key to this development is the machine builder’s ability to integrate mxAutomation from KUKA directly through the Siemens Sinumerik CNC platform, thereby allowing the operator of the machine to run both the machine tool and robot from the single control panel.
The motion sequence of the robot is entirely engineered within the Sinumerik 840D sl CNC, then transferred by the 840D sl’s PLC function to the mxAutomation interpreter on the KR C4. All program changes to a six-axis robot can easily be input on a second channel of the CNC and fully operated. This scenario provides the ability to not only run a machine tool’s automation sequence more efficiently, but also make more changes on-the-fly to minimize machine downtime, with no special knowledge of robot programming language.
During the operation of the machine tool, all changes made can be visualized directly on the CNC screen, further minimizing operator actions. Siemens is the first CNC supplier to show this capability for single-screen operation of the machine tool and robotic materials handling on the CNC. 
During the show, a Siemens Sinumerik 840D sl CNC will be programmed to allow the operator to jog the robot, command the gripper and otherwise simulate integrated actions with a machine tool.
In operation, the KRC4 integrator and mxAutomation convert the robot language into the same commands used for multi-axis machine tool functions. A single Profinet cable runs between the robot and the CNC. According to KUKA’s Andreas Schuhbauer, key technology manager for machine tool automation (Augsburg, Germany), “mxAutomation allows the machine tool builder a single I/O language for integrating robotics on the CNC, while the end user operator can run both the machine tool and the robot from a single screen on the control.” mxAutomation for Sinumerik CNC was a joint development between KUKA and Siemens. KUKA created plug-in function modules for the Siemens Step 7 PLC engineering software and provided its robot knowledge to Siemens for creation of the second channel logic on the CNC, Andreas Schuhbauer further noted. All safety functions and test functions for load / unload, brake test, gripper, robot communication and safe operation of the robot are provided through the Siemens Profinet and Profisafe platforms.
Future developments for mxAutomation are planned, including a wider application range for robots in the CNC machine tool environment. 
For more information about Siemens CNC solutions for the machine tool industry, visit our website: www.usa.siemens.com/cnc.
Join the user community by following us on Facebook: www.facebook.com/SiemensCNC and talking to us on Twitter: www.twitter.com/siemens_cnc_us. Siemens Industry Sector is the world’s leading supplier of innovative and environmentally friendly products, solutions and services for industrial customers. With end-to-end automation technology and industrial software, solid vertical-market expertise, and technology-based services, the sector enhances its customers’ productivity, efficiency and flexibility. With a global workforce of more than 100,000 employees, the Industry Sector comprises the Industry Automation, Drive Technologies and Customer Services Divisions as well as the Metals Technologies Business Unit. The Siemens Drive Technologies Division is the world’s leading supplier of products, systems, applications, solutions and services for the entire drive train, with electrical and mechanical components. Drive Technologies serves all vertical markets in the production and process industries as well as the infrastructure/energy segment. With its products and solutions, the division enables its customers to achieve productivity, energy efficiency and reliability.
For more information on this story, please contact
SIEMENS INDUSTRY, INC. DRIVE TECHNOLOGIES MOTION CONTROL MACHINE TOOL BUSINESS
390 Kent Avenue Elk Grove Village, IL 60007
Phone: 847-640-1595 Fax: 847-437-0784
Web: www.usa.siemens.com/cnc
Email: SiemensMTBUMarCom.sea@siemens.com
Attention: John Meyer, Manager, Marketing Communication
Follow us on Facebook: www.facebook.com/SiemensCNC or Twitter: www.twitter.com/siemens_cnc_us.
—
Siemens Industry Sector is the world’s leading supplier of innovative and environmentally friendly products, solutions and services for industrial customers. With end-to-end automation technology and industrial software, solid vertical-market expertise, and technology-based services, the sector enhances its customers’ productivity, efficiency and flexibility. With a global workforce of more than 100,000 employees, the Industry Sector comprises the Industry Automation, Drive Technologies and Customer Services Divisions as well as the Metals Technologies Business Unit. The Siemens Drive Technologies Division is the world’s leading supplier of products, systems, applications, solutions and services for the entire drive train, with electrical and mechanical components. Drive Technologies serves all vertical markets in the production and process industries as well as the infrastructure/energy segment. With its products and solutions, the division enables its customers to achieve productivity, energy efficiency and reliability.
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OP 090/OP 100 in sequence at General Motors Toledo Powertrain plant.
GM realizes “weeks to hours” reduction in line change and transmission build dynamics at Toledo Powertrain, resulting from Flexible Assembly Configuration System (FACS) and Siemens control/communication
A tried and true euphemism nowadays, “thinking outside of the box” usually refers to a pattern of thought or action that results in rapid innovation, enhanced relationships being developed from established concepts as well as new ones, plus a genuine willingness to forego past practices in favor of a better way. Enter the GF6 six-speed, front wheel transmission line at General Motors Powertrain on Alexis Road in Toledo, Ohio.
Here, a new front wheel drive transmission line for smaller, more fuel efficient vehicles such as the popular Chevy Malibu and new Chevy Cruze is currently ramping up to its initial goal of 2200 units per day. Nothing new about such an event, until a closer look reveals the method used to program this line, implement changeover, stage the workpiece flow, perform all machining, secondary operations and assemble the finished transmissions.
Greg Nazareth, GM controls engineer, demonstrates the reconfiguration procedure on the FACS server, part of the overall Flexible Assembly Configuration System, provided by Elite Engineering of Rochester Hills, Michigan.
During the development of this line, several years ago, GM engineering contacted its longtime controls suppliers to investigate ways of significantly reducing the workflow through the line, as well as enable faster changeover, reduce reprogramming and prevent the curse of all automated manufacturing lines, situations where one out-of-spec machine caused complete shutdown. Another key driver in the development of the GF6 line was the need to minimize maintenance time by installing PLCs, drives and component pallet recognition devices outside the conventional cabinetry found on traditional assembly lines. In addition, controllers were distributed throughout the system, which allowed for removal of typical zone controllers and, in turn, substantially increased system flexibility.
Following considerable investigation into the process for the new line, the major obstacle remained changeover and the need for a more flexible yet highly automated system of transmission builds. In consultation with the controls provider on the existing six-speed, rear wheel drive line, Siemens Automotive Center of Competence (Troy, Michigan), as well as third party software package provider, Elite Engineering (Rochester Hills, Michigan), a deterministic study was undertaken and the result was the line now in production. Siemens provided the PLC, CNC, HMI, RFID and its high-level Ethernet protocol, Profinet, to run on the GM network. Overlaying this hardware and communications topology, Elite Engineering delivered its Flexible Assembly Configuration System (FACS), complemented by Siemens to create its SIFACS solution, wherein all the control elements for every assembly operation and test stations would be fully integrated. SIFACS largely focuses on the integration of the core PLC software blocks and functionalities of the individual stations with the RFID tags on each of the workpiece pallets, according Jim Remski, manager of powertrain activities for Siemens.
Siemens CNC and HMI technology combine with its Profinet high-level Ethernet communications and RFID pallet tags to execute the machining, assembly and testing at this transmission plant, currently targeting an output of 2200 units/day.
AN INTEGRATED APPROACH
Within any flexible automated assembly system, the keyword is flexible. All hardware and related software must be designed with a deterministic functionality that is both valuable to the customer’s build strategy and cost-competitive, as well. Working with technical specialists in safety integrated systems and industrial communications alike was the key to the success of this project at GM Toledo. By creating a decentralized control network that was nonetheless in complete harmony with the overall workflow of the plant, GM and Siemens devised the optimum modular yet flexible architecture for the entire system. This totally integrated automation approach not only addressed multiple families of hardware involved, it also coordinates all code development, safety and communications functions into a seamless and interdependent yet highly flexible and adaptive control scheme.
This integration is nowhere more visible than in the modular and open controller and I/O rack assemblies located throughout the facility. A Siemens Simatic® S7 CPU, the Siemens Safety Integrated drives platform and all I/O, including RF antennas for RFID tag reading are configured and reside here.
Diagnostics in the system are similarly integrated, according to Matthew Thornton and Jeremy Bryant, who consulted from Siemens. “We devised pre-made templates and blocks important to the powertrain build process, as our starting point,” commented Thornton, who further noted the importance of placing the critical performance data on all the HMI panels in the system for easy operator access. “With all motion and safety functions integrated into the drives, there was no need to build a separate troubleshooting architecture for what would be a more traditional safety network of relay cabinetry.”
Bryant continued, “Only a few components talk on the Profibus system, all other I/O and automation components communicate over Profinet.
Reinhold Niesing of the Siemens Automotive Center of Competence further explained the contact process between his group and the provider of the FACS. “They provided the configuration and monitoring system, while we (Siemens) provided the automation run time system. Both systems needed to run in sync to provide GM with configurable options, when changes in production or manufacturing enhancements were needed.”
Each RFID tag carries all the information needed to produce the part at each of the machining and assembly stations in the line.
Comau machining centers produce transmission cases and torque converter housings.
The result of this collaboration, coordinated under the Siemens Transline solution, whereby all operational, visualization and diagnostic functions are streamlined in a consistent control scheme, was the Transline HMI Lite CE package. This package provides uniform user interface for operational and diagnostic functions on the vast majority of the various machine tools, transfer lines, robotics, assembly machines, sensing devices and vision systems throughout the entire facility. As Michael Grass, project manager for Siemens, explains, “The best part is that the package can be customized to meet specific user needs and preferences. It provides our SIFACS (see sidebar) system of configurable assembly automation very useful information, as the two systems complement each other quite well.” In the safety communications area, he also noted that GM is currently reviewing another Siemens option for open safety communications technology on distributed automation systems.
RFID GETS THINGS STARTED
As a workpiece proceeds through the line, having been delivered by an AGV in most cases, each pallet is equipped with an RFID tag. Reinhold Niesing, engineering manager on the project for Siemens, explains, “The key here is the data throughput in the system, as it directly impacts the cycle time or takt time (maximum allowable time to produce one finished part or product) of the line. The tags must be able to function in static mode, whereby the data on the part must be read before the process begins. Model number, serial number and build status information are all contained in the tag. The faster we read the information, the faster the process begins.” Niesing also detailed the dynamic mode of operation for this RFID system, in which the information at subsequent line stations must be read “on the fly” without any line stoppage, as is often seen in conventional packaging, shipping or other line applications for RFID. In this case, all data are read as the tag passes by the antenna.
Often, in less sophisticated applications, the signal can degrade over time and number of reads. Here, according to the Siemens technical specialists, two interface protocols are supported, namely, ISO 15693 (open standard) and a proprietary Siemens-developed standard, Simatic RF300. The latter uses a state-of-the-art chip paired with highly optimized communications to achieve the faster data read/write rates. Large amounts of data (64kB) are handled in faster cycle times, while the overall RFID solution is applied in a high-speed, non-stop environment. One of the key drivers in the system is the fact that each RFID tag has both EEPROM and FRAM. The 20-byte EEPROM is actually designed to be a one-time programmable memory chip (OTP), a security feature that was deemed most desirable by GM for this application. Meanwhile, the FRAM can be written and rewritten many times for optimum utilization of the hardware, over time.
Despite this level of sophistication in the RFID hardware, the system easily communicates over the existing Profinet, Profibus and other common protocols.
LOGIC BLOCKS ALL AROUND
Open hardware racks and communications cabling are easily accessible for maintenance personnel.
The overall thrust of the line development, according to George Jewell, the GM engineer responsible for the implementation of the FACS online at the Toledo plant, was to have consistent, even identical logic blocks at every station. This would allow, as is seminal to the FACS architecture, immediate successive modifications to be made in the machine or assembly operations performed, throughout all stages of the line. When rebalancing was needed, when an upturn/downturn in current production was required or when an entirely new model came onto the line, the changeover needed to happen in hours, rather than in weeks, as was the industry norm.
By standardizing on the hardware, software and communication protocols used, engineering costs could be contained and, as a collateral but vital side effect, maintenance on the system could be made much more efficient with much of the system hardware exposed on the line, rather than enclosed in electrical cabinets, again the norm for the industry in the past. Flexible modules would allow more rapid reconfiguration, product changes and a genuine synergy with the ongoing GM commitment to continuous improvement in the line, as the new GF6 transmission ramped up to incremental target levels of production.
Jewell noted that Siemens responded to the challenges, “…with a plug-and-play technology approach, coupled with an understanding of the processes we utilize.”
From the utility perspective, he also noted that the run-time component in the system would function without the full configuration system being online, further complementing a decentralized architecture. Bob Raven, GM controls manager, further commented, “The Siemens commitment to provide this value added functionality geared towards flexibility within our manufacturing principles has substantially supported GM Powertrain’s efforts to standardize processes, controls and continuously improve.”
Reaction carrier sub-assembly.
Currently, GM uses the FACS at various plants in Mexico, China, India, Thailand, Korea and the U.S. — and soon in Canada and Eastern Europe, for the production of transmissions, engines and even the generator on the new Chevy Volt. These products, it should be noted, can be manufactured, assembled and tested, all within the same flexible control architecture, while supporting standardized GM processes.
Rather than textbook product life cycle management, Jewell sees FACS as more of a production line life cycle management tool, as its inherent adaptability means common hardware can be made to do diverse tasks, at varying rates, with on-the-fly changeover, in far less time than previously possible.
TYPICAL STATION DYNAMICS
On one automated assembly station, Hanwha produces the various sub-assemblies of the transmission, as other lines produce the components that go into the sub-assemblies. Adding a station, as Greg Nazareth, GM controls engineer, explained, requires simply adding a PLC with the standard SIFACS logic, desired process devices and downloading an eFACS configuration. In contrast to the traditional zone control, this reconfiguration is not a building block concept; rather, the instructions being given impact the entire line. Nazareth worked with the full GM controls team, headed by Ron Goeckerman, to implement FACS with the host server.
By contrast, all manual workstations on this line have the same download received to a PLC, provided by Siemens in its Simatic lines. While not reliant on the server network in a deterministic mode, the manual stations nonetheless utilize the same software to execute quick tooling changes, machine sequence variations, line balancing and report tracking. Operators received training from both Siemens and Elite Engineering personnel for these tasks.
All part build histories, troubleshooting and machine debugging are recorded for further analysis.
Federal Broach machines perform large transmission gear production.
CONTROLS CALL THE BALL AT EVERY STEP
Throughout the metalcutting process here, mostly in the gear and spline forming, hobbing, grinding and finishing, CNC technology is onboard dozens of machine tools. Most of the machines here are controlled by Sinumerik® 840D, the highest-level CNC offered by Siemens. The control not only processes the particular part dimensions in the cutting theater of the machine, it also coordinates all motion control and movements into and out of the machine. Working in tandem with the other hardware and communication network software in the line, for example, ring gears cut on a Wera Profilator machine are indexed from one station to the next, in timed sequences, to coordinate with predetermined production requirements. This operation occurs in a fully automated mode, requiring no operator intervention, except for maintenance and planned inspections.
Likewise, in the machining of valve bodies and transmission cases, each step of the process is controlled by the Siemens CNC to produce the required components in the proper sequence for subsequent assembly and testing operations. During those subsequent operations, other motion control devices and software solutions provided by Siemens execute, monitor and control the assembly process, through the SIFACS solution set. (See sidebar.)
PROFINET TALKS THE TALK
Through a decentralized and cabinet-less design, GM achieves highly integrated RFID control with easy access and true out-of-the-box solutions for the control architecture installed on this line. A Profinet solution provides GM with a high-performance, reliable network with minimum bandwidth impact or additional network load achieved at this plant, all with no special hardware required, a further cost savings for GM.
SAFETY FIRST — AND LAST
Safety features are numerous here, resulting in a complete failsafe system across all Siemens Simatic PLC, I/O devices and safety-integrated drives. All safety devices are networked over Profisafe protocol, a certified safety network, eliminating time-consuming and difficult to maintain traditional hardwired safety connections. All safe I/O, failsafe drives are part of the Siemens Totally Integrated Automation (TIA) protocol. Since it is fully integrated, this protocol provides comprehensive system diagnostics,
Rear wheel drive, six-speed line has been in full production, while the new line is producing front wheel drive, six-speed transmissions for vehicles such as the Chevy Malibu and new Cruze models.
which can help guide maintenance staff to exact fault location and mitigate downtime. Since the drives, starters and machine safety are integrated into the multi-functional machine mount I/O system, Simatic ET 200pro, the overall engineering complexity is reduced because of simplicity in panel design, wiring architecture and seamless integration to the project level hardware configuration, which is reduced due to the totally integrated automation design. For service requirements in the event of a fault, hot swapping of an I/O module is possible during operation, without switching off the entire station. There is nonetheless a very high degree of integral protection, to IP65/67 standards. The fact that an enclosure is not required also helped save on the total cost of the project for GM.
MAJOR INVESTMENT PAYING OFF
Between the two lines here, GM Toledo has invested $872 million on its six-speed, rear- and front-wheel drive transmission production at this 2 million square-foot facility, which currently employs 1400 employees, most members of UAW Local 14.
The highly fuel-efficient rear-wheel drive Hydra-matic 6L80 transmission is now joined by the GF6 front-wheel drive, six-speed
units being produced on this new line under the FACS control solution that supports flexible manufacturing while driving standard processes.
As George Jewell, the GM engineer who spearheaded the implementation of FACS, stated, “From our first installation in Ramos Arizpe (Mexico) to this Toledo plant, we’ve seen great results, with activities that took months reduced to weeks and what took weeks reduced to hours. There’s less ramp-up time, plus the changeover and line balancing upsides are already proving this was a beneficial investment.”
Testing station with FACS configuration terminal in background.
Please direct all inquiries generated by this story to:
John Meyer
Siemens Industry, Inc.
Marketing Communications
390 Kent Avenue
Elk Grove Village, IL 60007
Phone: 847-640-1595
Fax: 847-437-0784
Email: SiemensMTBUMarCom.sea@siemens.com
Wera Profilator gear profiler run by a Sinumerik 840D, the highest level CNC in the Siemens line, used for fully automated production of ring gears.
SIFACS — THE SIEMENS SOLUTION FOR THE FLEXIBLE ASSEMBLY CONFIGURATION SYSTEM (FACS)
Working in tandem with GM process specialists and Elite Engineering, the third party provider of the unique Flexible Assembly Configuration System (FAC
S) used at this GM Toledo transmission plant, Siemens personnel created SIFACS, a solution that integrates the host IT system at the facility with all hardware and software in the line.
SIFACS is quite literally the hub of the information management system for this line, as it coordinates all demand input from the GM server and FACS configuration stations, transmits it via the Profinet communications network in the plant to all the onboard PLC, HMI, motor starters, frequency converters, safety-integrated drives and other controls at the various machine tool, assembly and test stations.
Likewise, the feedback data from all RFID, smart sensors, RS-232 interfaces, hand scanners and other I/O devices are tracked and captured for detailed analysis by production management here.
Faessler gear honing machine works in tandem with robotic load/unload stations.
In this way, not only is the system’s production output closely controlled, but also the line stations themselves can be reconfigured, using a unique Siemens micro memory card that allows easy component replacement, without a laptop. All PLC logic, hardware configuration and process data are embedded on the card, which is interfaced to three Ethernet and one Profibus ports for instant communications.
Critical for a continuous moving line such as those found here, the Siemens Simatic control systems are executing motion commands read from the RFID devices at 8000 bytes/sec, far in excess of the ISO 15693 standards for read and write performance.
SIFACS HMI screen extensions with Cognex Vision View further permit constant monitoring by both a team leader and a conveyor controller, eliminating a PC dedicated to a vision system.
All the smart devices on the line are also interfaced to the SIFACS solution, including fastening, leak test and pressing systems, plus barcode readers, barcode printers, robotic articulation and handling devices, vision systems and protocol gateways.
eFACS functionality is finally integrated into the SIFACS, as this feature of the Elite Engineering system provides connection establishment and monitoring, as well as configuration, process and status data exchanges, plus management of the model configuration data, all stored on the system.
On the most practical of levels, even the data structures feed to the Andon boards for in-plant display is integrated through the resident IT system via SIFACS.
Process Improvement Tools and Process Efficiency Tools, provided with the FACS, enable both process and production engineers to collect data and fine tune the system in real time, keeping build status and cycle time information always current. Line and station balancing can likewise be achieved on-the-fly, with complete process efficiency, operator loading, anticipated cycle time, even individual process operation time calculations being made, charted, displayed and rapidly analyzed by the team leader or station control personnel, in a hierarchy of need-to-know, need-to-act protocol.
The net effects of the Siemens SIFACS® system and the Elite eFACS are sustainable, highly flexible production scenarios, coupled with lower life cycle costs, as the controls and station hardware need not be re-invented for each new model, as well as lean manufacturing strategies, since the line can be constantly tuned without interruption. The flexibility, data analysis and transparent metrics of these systems further allow all employees to understand the current line performance in real time and to make suggestions for improvements that can be implemented almost immediately.
“It’s a win-win-win for all parties involved,” commented George Jewell of GM, whose team pioneered the development and application of these systems for his company’s various plants. Further advancements in FACS and SIFACS are currently being introduced at other GM facilities worldwide, according to Jewell.
For additional product information and inquiries:
SIEMENS INDUSTRY, INC.
DRIVE TECHNOLOGIES
MOTION CONTROL
MACHINE TOOL BUSINESS
390 Kent Avenue
Elk Grove Village, IL 60007
Phone: 847-640-1595
Fax: 847-437-0784
Web: Email: SiemensMTBUMarCom.sea@siemens.com
Attention: John Meyer, Manager, Marketing Communication
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Siemens Industry Sector is the world’s leading supplier of innovative and environmentally friendly products, solutions and services for industrial customers. With end-to-end automation technology and industrial software, solid vertical-market expertise, and technology-based services, the sector enhances its customers’ productivity, efficiency and flexibility. With a global workforce of more than 100,000 employees, the Industry Sector comprises the Industry Automation, Drive Technologies and Customer Services Divisions as well as the Metals Technologies Business Unit. For more information, visit http://www.usa.siemens.com/industry.
The Siemens Drive Technologies Division is the world’s leading supplier of products, systems, applications, solutions and services for the entire drive train, with electrical and mechanical components. Drive Technologies serves all vertical markets in the production and process industries as well as the infrastructure/energy segment. With its products and solutions, the division enables its customers to achieve productivity, energy efficiency and reliability. For more information, visit http://www.usa.siemens.com/drivetechnologies.
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