Real-Time Compensation Of Cutting Force Induced Error On CNC Machine Tools

Nowadays, the application of the NC machine tools is more and more extensive, and the NC technique has entered into many fields and has become the key technique of international competition. But, along with the higher request to NC machine tools, the machining precision has become the obstacle. The error compensation technique is a good way to solve this problem, and it has become an international hot research task. And it is more important to the machining industry of our country. As the economic grows, our demand to NC machines extends increasingly. But, it is imposable to renovate all equipment in used at short time. The error compensation technique can improve machining precision with little investment, so it can make large benefit.Deformations due to the impact of cutting force are factual and a principal source of error. In many contemporary process of precision machining including flexible and hard machining particularly for high precision machining, the cutting force induced errors cannot be disregards and mere controlled by technical skill.Deformations due to the impact of cutting force are analyzed here. The model is set up by fuzzy-neural nets, which based on Hall Effect sensors. The model also set up through motor in transmission of machine tool and calibration by Hall Effect sensors. And the compare conclusion will get from two different models.Then based on the compensatory circuit and model the errors are determined and compensated in real-time. It is progressively accomplished through the normal working life and referenced to the indirect monitoring compensation system. The implementation of the system was found to significantly reduce the cutting force induced error.