Ultra-precision machining methods and difficulties of hardware parts machining
Hardware parts processing manufacturers introduce methods: According to processing methods: divided into four categories: cutting processing, abrasive processing, special processing and composite processing; According to the mechanism and characteristics of processing methods: divided into three categories: removal processing, combined processing and deformation processing. At present, the traditional processing methods represented by cutting, grinding and grinding and polishing still dominate.
Difficulties: ①Ultra-micro machining is like cutting a discontinuous body, and the stress is difficult to remove; ②The rigidity and thermal deformation of the process system are large, which greatly affects the processing accuracy; ③The microscopic deformation of the tool and workpiece surface is random, and the precision is difficult to control.
Realization conditions: ①Precision machining mechanism; ②Precision machining equipment; ③Precision machining tools; ④Workpiece material; ⑤Precision measurement and error compensation technology; ⑥Working environment, conditions, etc.
An ultra-precision machining system for processing hardware parts, which includes a base, a first support arm fixedly arranged on the base, a second support arm slidably arranged on the base, a rotatable A rotating shaft disposed on the first support arm, a machining tool disposed on the second support arm and slidable relative to the support arm, a detection device above the rotating shaft and a control device.
The hardware parts processing manufacturer stated that the control device is used to calculate the offset of the rotation axis according to the detection result of the detection device, and issue a control command according to the offset to adjust the processing tool to offset the offset caused by the rotation axis. processing error. The ultra-precision machining system uses a detection device to detect the position of the rotating shaft, which can find the positional deviation of the rotating shaft in real time, and offset the processing caused by the positional deviation of the rotating shaft by moving the machining tool. error, so the machining accuracy can be improved.