What is the fault handling of CNC turntable dislocation?

CNC turntable fault processing method is a topic of public concern, many people want to have a comprehensive understanding of the information in this respect. For example, when CNC turntable falls after indexing, it is obviously staggered and loud. How to solve it?

A supporting FANUC OMC, model XH754 CNC CNC machine tool, CNC turntable after the fall of the division dislocation is obvious, loud sound. Analysis and processing process: the nc turntable has obvious dislocation when falling after indexing, indicating that the indexing position of turntable differs greatly from the positioning position of rat tooth disk; If the position is also misaligned when returning to zero, the grid offset of the fourth axis can be adjusted (parameter 0511) to solve the problem. If the turntable transmission has clearance, the clearance compensation of the fourth axis can be adjusted (parameter 0538). If there is a mechanical pitch error, adjust the fourth axis screw.

Some also found that the turntable back to zero after the move, adjust 0511 value to solve. Fault phenomenon: a supporting FANUC OMC, model XH754 CNC machine tool, the turntable back to zero is not accurate, back to zero after the table skewed. Analysis and processing process: this kind of fault is generally due to the bad turntable back to zero switch, travel pressure block loose or loose switch. After shutdown, open the side cover of the turntable, press the travel switch by hand, check the travel pressure block and the switch seat, and estimate the change of the press break point of the travel switch. After adjusting the switch seat to the correct direction for a short distance, the machine is powered on and the fault is eliminated.