What are the reasons for the poor machining accuracy of parts

Precision is very important for part processing, because it affects the final result, so if the final product effect is good, we must ensure that the precision is always correct. If the accuracy has changed, it must be corrected in time. However, since there is more than one factor that affects the accuracy, you must know what causes the accuracy before solving the problem. Now let’s find out what causes the poor machining accuracy of parts?

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

2、 When the machine tool is running, the overshoot will also affect the processing accuracy, which may be because the acceleration and deceleration time is too short and the change time is appropriately extended. Of course, it is also very likely that the connection between the lead screw and the servo motor is loose.

3、 Because the roundness of the two shafts is out of tolerance, the machinery is not adjusted properly to form the axial deformation of the circle, the lead screw clearance compensation of the shaft is not correct, or the shaft positioning is offset, the precision of precision parts may be affected.

The above is about the reasons for the poor machining accuracy of the parts. After reading, do you know? I hope it will be helpful to you.