Heidenhain Optimised motion control for shorter processing times
Germany – Precision in production leads to more efficient and more secure processing. How this works was shown at EMO Milano by Heidenhain with live presentations of its current control system and demonstrations of accurate positional measurement with distance and angular measurement devices in closed-loop control systems.
In Milan, the control and measurement technology manufacturer from Traunreut demonstrated live the TNC 640 controller with its numerous functions, said to provide more efficiency and higher precision. According to the company, a particular feature is the optimised motion control, said to lead to short processing times while maintaining perfect surfaces and very high accuracy in the workpiece.
The Traunreut firm groups together under the name Dynamic Precision functions for time-efficient production of high-precision components. They are said to enable fast, vibration-free milling, one of the tools being the AVD active vibration damping function.
Dynamic Efficiency is the name for functions for efficient heavy machining. These are said to reduce machine chatter by ACC active chatter control or raise the machining performance with trochoidal milling and AFC adaptive feed control.
In addition, the detailed 3D simulation graphics in the TNC 640 are said to enable a close-to-reality simulation for processing programs either on the machine or produced externally. Its processing preview is a powerful tool enabling an advance assessment of the program regarding missing data, problematical process steps and inadequate surfaces.
The 3D simulation graphics allow for the machine operator to detect errors in an NC program before the processing itself begins and thus recognise optimisation potential. Two further presentations showed the importance of very accurate positional measurement using distance and angular measurement devices in closed-loop control. These measurements guarantee precise workpieces and strict compliance with tolerances by compensating, for example, thermal fluctuations in the drive train.