Processing of precision parts of centering machines:

Ultra-precision processing methods and difficulties in hardware parts processing

  According to the processing method: it is divided into four categories: cutting processing, abrasive processing, special processing and composite processing; according to the mechanism and characteristics of the processing method: it is divided into three categories: removal processing, combined processing and deformation processing. At present, traditional processing methods represented by cutting, grinding and grinding and polishing still dominate

Difficulties: Ultra-micro processing is like cutting a discontinuous body, and the stress is difficult to remove; The stiffness and thermal deformation of the process system are large, which has a great impact on the processing accuracy; The microscopic deformation of the tool and workpiece surface is random, and the accuracy is difficult to control.

Realization conditions: Precision machining mechanism; Precision machining equipment; Precision machining tools; Workpiece material; Precision measurement and error compensation technology; Working environment, conditions, etc.

An ultra-precision machining system for hardware parts processing, which includes a base, a first support arm fixedly provided on the base, a second support arm slidably provided on the base, and a a rotation shaft rotatably provided on the first support arm, a processing tool provided on the second support arm and slidable relative to the support arm, a detection device located above the rotation shaft and a control device .

The control device is used to calculate the offset of the rotation axis based on the detection result of the detection device and issue a control instruction to adjust the processing tool according to the offset to offset the processing error caused by the offset of the rotation axis. The ultra-precision machining system uses a detection device to detect the position of the rotation axis, which can detect the position deviation of the rotation axis in real time, and offset the processing caused by the position deviation of the rotation axis by moving the processing tool. error, so the machining accuracy can be improved.