Motor Feedback System: Accurate Displacement Measurement in Mechatronics Servo Technology
Electric instead of hydraulic, servo electric cylinders replace hydraulic systems – more and more electromechanical drive technology for fully automated workpiece forming, pressing or automated assembly. For the user, in addition to significantly reducing operating costs, the stepless regulation feature is also the primary decisive advantage. Ortlieb Precision Equipment uses motor feedback systems such as SICK Stegmann's SKS36 for its SERAC® Servo Electric Cylinders to ensure accurate displacement measurement and position adjustment for high availability.
Machining workpieces and blanks of different strengths on the same machine, performing multiple processes with a single electric cylinder motion mode, stepless smooth movement to different machining positions – in many cases, servo technology has a decisive advantage over hydraulic and pneumatic drives . “Therefore, the mechatronic system with motion control is unstoppable,” explains Niels Selig, limited product manager for Ortlieb Precision Equipment in Kirchheim/Teck. “At this point, we noticed a change in the market's wind vane, whether it is for new equipment or renovation – especially when comparing operating costs, servo drive technology is also significantly better than hydraulic and pneumatic systems.” The system can perform molding or riveting processes with high precision. If necessary, multiple servo axes can be synchronized. Servo electric cylinders (such as Ortlieb's SERAC® product line) use high-precision precision displacement measurement systems – for example, with HIPERFACE ® interface SICKStegmann rotary motor feedback system SKS36.
Ortlieb: "Precision company" with clamping and servo screw technology
For more than 100 years, Ortlieb in Kirchheim/Teck has positioned itself as a “precision company”, providing economical and precise solutions in the field of workpiece and tool clamping as well as servo electric cylinders. “Based on our research and development and patents, we have defined many important clamping technology DIN standards,” Niels Selig pointed out. “From standard compression clamps to single-production non-standard clamping solutions, we offer flexible, standardized and customized solutions in one stop.” Mechatronic components and servo electric cylinders have become increasingly important to the company. The second pillar, which will be located in one of the most innovative, architectural and energy-efficient corporate offices in Baden-Württemberg in the spring of 2017. Among them, the complete solution of the pre-connected installation is the most important, consisting of a servo-electric cylinder that can be modularly configured. “Motors, leadscrews, encoders and brakes (if needed) are fully integrated into the electric cylinder,” says Niels Selig. Based on the company's patented technology in the field of screw technology, SERAC® Servo Electric Cylinders exhibit exceptional performance.
SERAC® Servo Electric Cylinders bring together know-how in aerospace and machine building
Like the slogan “Electric instead of hydraulics”, Ortlieb offers innovative solutions to replace hydraulic cylinders and cylinders with the SERAC® Servo Electric Cylinder product line. The housing construction, motor specifications, torsion stop or fixing method of each model are different, and they are distinguished by high concentration, large thrust and integration. In the wide range of industrial applications for small part assembly or stamping, forming and riveting, the product range has been proven under extremely harsh operating conditions. The technical basis of the SERAC electric cylinder is the special planetary roller screw originally developed for the aerospace industry. Its main feature is its extremely light weight, which enables precise positioning without additional reduction gears. Based on patents distributed worldwide by DLR (German Aerospace Center), Ortlieb developed the ASCA® planetary screw and mass-produced it for applications in mechatronic systems. Many SerAC® models of the actuating screw provide a small lead of only one millimeter, enabling extremely precise point-of-work movement through the electric cylinder. The premise is an encoder that supports equally accurate displacement measurement and positioning, such as the motor feedback system SKS36.
