1. The processing effect of the arc is not ideal, and the size is not in place

Causes: Resonance caused by overlapping vibration frequencies; Processing technology; Unreasonable parameter settings, excessive feed speed, causing arc machining to lose step; Loose or out of step caused by excessive clearance between screw rods or excessive tightening of screw rods; The synchronous belt is worn.

Solutions: Identify the components that generate resonance, change their frequency, and avoid resonance; Consider the processing technology of the workpiece material and develop a reasonable program; For stepper motors, the processing rate F cannot be set too high; Whether the machine tool is firmly installed and placed smoothly, whether the drag plate is too tight after wear, whether the gap increases or the tool holder is loose, etc; Replace the synchronous belt.

2. Occasionally, workpieces exceeding the tolerance may occur in batch production

Causes: It is necessary to carefully inspect the fixture and take into account the operator's operating methods and the reliability of the fixture. Due to the size changes caused by the fixture, it is necessary to improve the fixture to prevent workers from making mistakes due to human negligence; The CNC system may be affected by fluctuations in external power sources or automatically generate interference pulses after interference, which can be transmitted to the driver, causing the driver to receive excess pulses and drive the motor away or less.

Solutions: Understand and master its rules, and try to adopt some anti-interference measures, such as isolating strong electric cables with strong electric field interference from the signal line of weak electric signals, adding anti-interference absorption capacitors, and using shielding wires for isolation. In addition, check whether the ground wire is firmly connected, the grounding contact is close, and take all anti-interference measures to avoid system interference.