We know ， Parts processing Cannot leave the tool 。 But have you ever thought about it ， What is indispensable for tool machining ？ The feed of the tool does not start the stepping motor 。 If in Precision parts processing In process ， The stepper motor is out of order ， The tool will not be able to cut 。 Want to do well Precision parts processing ， It is necessary to understand the faults of stepping motor and the treatment measures 。

　　1、 Parts processing Time stepping motor is abnormal

　　 Generally at startup Precision parts processing After procedure ， Stepping motor may vibrate ， Or not ， This is the control system of stepping motor is abnormal 。 Or there is a problem with the stepper motor itself ， Or there's something wrong with the driver 。 If it's a circuit problem ， That's easy. 。 First, check whether the plug connecting the power supply is in good condition 。 Try the plug on other motors that are not faulty 。

　　 If the circuit is OK ， So there must be something wrong with the control system of the stepping motor 。 Abnormal control part ， The high-power triode and its protective element release diode, which usually appear on the motor drive board 。 These two originals are the easiest to damage 。 If it can be reactivated ， Then we should be able to give way to the motor and start it again ， Or it can only be replaced 。

　　2、 Step motor lost during tool operation

　　 If the drive voltage drops ， Step motor torque reduction ， It may lead to step loss 。 This is mainly about the power supply ， Check the drive power supply 。 When the high voltage switch fails ， High voltage power supply cannot be imported ， When operating at high speed ， The output torque of stepping motor is obviously reduced ， It's inevitable to lose step 。 In addition to switch ， Faults in other places may also cause step loss 。 Silk mother 、 Screw 、 Slide board 、 Step motor reducer and other places should also be inspected 。 If there's a bend in these places 、 Sundries or deformation ， It will also increase the running resistance ， Cause step motor to lose step 。