Why does the machining accuracy of precision hardware parts get worse?

Why does the machining accuracy of precision hardware parts get worse?

Precision hardware can be cut according to production needs, and then some small accessories can be processed by gong cutting or CNC processing, and precision hardware parts must be cut and punched, then welded, then sanded and sprayed. After the accessories are made done. It should be reminded that small parts also need to be electroplated or sprayed on the surface after grinding. There are many cases of batch processing of precision hardware parts. Therefore, the accuracy of hardware parts almost determines the quality of the product. The more precise the hardware parts, the higher the accuracy requirements will be. So why does the machining accuracy of precision hardware parts deteriorate? 

1. The machining accuracy of the part itself is poor. Generally speaking, if the dynamic error between the shafts is not adjusted properly during installation, or because the shaft transmission chain changes due to wear, the accuracy of the parts will be affected. Generally speaking, the accuracy check caused by this type of error can be solved by readjusting the compensation amount. If the error is too large or even if an alarm occurs, it is necessary to check the servo motor to observe whether its speed is too high.

2. Overshoot of the machine tool during operation will also affect the machining accuracy. It may be because the acceleration and deceleration time is too short, and the change time should be appropriately extended. Of course, it is also very likely that the connection between the screw and the servo motor is loose. Auto parts processing

3. Because the roundness caused by the linkage of the two shafts is out of tolerance, the machine is not adjusted well to form the axial deformation of the circle, the compensation of the screw clearance of the shaft is incorrect or the shaft positioning is offset, which may affect the accuracy of the precision parts.