CNC double disc grinding machine maintenance troubleshooting

In CNC double disc grinding machine, most of the faults have data to look up, but there are also some faults, the alarm information provided is more vague or even no alarm, or the cycle is longer, irregular, irregular, which brings a lot of difficulties to the search and analysis. Shuangxing machine tool manufacturers remind this kind of machine tool failure, need to analyze the specific situation, patiently find, and check the special need for mechanical, electrical, hydraulic and other aspects of comprehensive knowledge, otherwise it is difficult to quickly and correctly find the real cause of the failure.

Abnormal machining accuracy fault: system parameters change or change, mechanical failure, machine tool electrical parameters are not optimized motor operation abnormal, machine tool position ring abnormal or control logic is the common cause of CNC double disc grinding machine processing accuracy fault in the production, find out the relevant fault points and deal with, the machine tool can be restored to normal. Abnormal machining accuracy of CNC double disc grinding machine is often encountered in production. This kind of fault is hidden and difficult to diagnose.

There are five main reasons for such failures:

1, the machine feed unit is changed or changed;

2, the machine axis of the NULLOFFSET anomaly;

3. Abnormal axial BACKLASH;

4, the motor running state is abnormal, that is, the electrical and control part of the fault;

5, mechanical failure, such as screw, bearing, shaft coupling and other parts.

In addition, the preparation of the machining program, the selection of the tool and human factors may also lead to abnormal machining accuracy.

The processing accuracy anomaly caused by mechanical failure should be checked one by one in the following aspects.

1. Check the machining program segment that is running when the accuracy of the machine tool is abnormal, especially the calibration and calculation of the tool length compensation and the machining coordinate system (G54 ~ G59).

2. In the point-motion mode, the Z-axis is moved repeatedly, and the motion state is diagnosed by sight, touch and listening. Abnormal Z-motion sound is found, especially the noise is more obvious with fast point-motion.