Cindy@njprecisionengineering.com

Why does the machining accuracy of precision hardware parts deteriorate?

by:NJPE     2020-01-11
The precision of hardware parts almost determines the quality of products. The more precise the hardware parts are, the higher the precision requirements will be. Why is the precision machining precision of precision hardware parts worse? The following is an answer for everyone: the first factor is the poor machining accuracy of the parts themselves. Generally speaking, if the dynamic error between the shafts is not adjusted properly during installation, or because the shaft transmission chain will affect the accuracy of parts due to wear and tear. Generally speaking, the precision caused by this type of error can be solved by readjusting the compensation amount. However, if the error is too large or even if an alarm is generated, it is necessary to check the servo motor to see if its rotating speed is too high. The second factor is that the overshoot of the machine tool during operation will also affect the machining accuracy, which may be due to the short acceleration and deceleration time and the appropriate extension of the change time, of course, it is also very likely that the link between the lead screw and the servo motor is loose. The third factor is that the roundness generated by the linkage of the two axes is out of tolerance, the machinery is not well adjusted to form the axial deformation of the circle, the screw gap compensation of the shaft is incorrect or the shaft positioning is offset, may affect the accuracy of precision parts
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