The precise continuity of micro interpolation is the essence of motion control!
Continuous path motion is a fundamental performance requirement for motion controllers, and in precision motion control, it is a crucial point that can be considered its essence. It can be rephrased as the accurate continuity of multi-axis interpolation. Accurate continuous interpolation means "no positional error; the trajectory is precise" and "no velocity error; the speed and time are as specified." Fine and high-precision movements consist of a series of very small vectors. In processes such as machining, polishing, and winding, it is necessary to accurately maintain a large number of small interpolations continuously. The operation (processing) time T for one interpolation is determined by the feed speed F and the interpolation length L, where T = L/F. There is a limit to how small this time can be, beyond which the motion controller's control cannot keep up. This is why the minimum time for accurately continuous processing of small interpolations serves as a performance indicator for motion controllers. Techno's motion controllers can achieve continuous interpolation with a control cycle as short as 125 μsec. Accurate speed and smooth continuity are directly linked to the precision of operations and processing, significantly impacting work quality. For more details, please contact us.
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**Introduction to the Verification Experiment of Continuous Path Motion** ○ You can easily experience it with the demo unit. ○ Verification and analysis are done using TPC logging functionality and TPC-EXCEL (motion analysis software). ○ "Onigiri Operation Program" → Continuous linear interpolation and circular interpolation. → The feed rate is varied from low to high speed to observe trajectory accuracy and speed waveforms. ○ Actual measurements in EX → The actual trajectory (the real movement of the motor axis) and the commanded trajectory almost overlap and appear as a single line. → The speed waveform is accurately continuous. ○ Accurate commands from low to high speed → High-speed operation Feed rate F = 180 Kpps One cycle time T = 102 msec → Ultra-high-speed operation Feed rate F = 900 Kpps One cycle time T = 20 msec → Micro commands every 0.5 msec → The commanded trajectory is accurate at any speed. Even if the processing time for each interpolation becomes very small compared to the control cycle time, it operates normally. ● For more details, please contact us.
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Techno has consistently developed and sold "motion controllers" for over 35 years since its founding. Our greatest mission is to enable the more flexible use of advanced NC technology. To achieve this, we have realized "the openness of NC technology," "downsizing (miniaturization and minimal hardware)," and "a wealth of precise motion functions." Thanks to this, our products are used in over 600 themes and tens of thousands of devices. *These include precision machining machines (cutting, grinding, polishing, milling, boring, discharge, laser, water jet, etc.), winding machines, unwinding machines, industrial robots, 3D printers, pipe benders, spring manufacturing, film rolls, inspection devices, and more. We believe that our products, technology, know-how, and experience will continue to contribute to customers aiming for world-class top-level equipment.