NC cutting machine NC system fault repair method
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Its processing flexibility, high precision, high production efficiency, has many advantages. However, due to the increasingly advanced and complex technology, the quality requirements of maintenance personnel are very high. They require deep professional knowledge and extensive maintenance inspections to be eliminated in time when the CNC cutting machine fails. We systematically analyzed and studied the faults of the cutting machine.
I. NC system failure 1. Hardware failure Sometimes the machine is down due to hardware damage in the NC system. For the diagnosis of such failures, we must first understand the working principle of the CNC system and the function of each circuit board, and then analyze the fault phenomenon, and use the exchange method to accurately locate the fault point under conditional conditions.
2. Soft failure CNC plasma cutting machine has some failures due to the NC system parameters, sometimes due to improper settings, sometimes due to accidental changes or confusion of parameters, such failures as long as the adjustment of the parameters, will disappear naturally. There are also some failures that cause the NC system to be in an infinite loop due to accidental reasons. Such failures must sometimes be forced to resume the use of the system.
Second, external faults As the reliability of modern numerical control systems is getting higher and higher, the failure rate is getting lower and lower, and failures rarely occur. Most of the failures are non-systematic and caused by external causes.
Third, the failure of the servo system Because the control core of the numerical control system is the digital control of the feed part of the cutting machine, and the feed is controlled by the servo unit servo motor, drive the ball screw to achieve, position feedback by the rotary encoder Components form a semi-closed loop position control system. Therefore, the role of the servo system in the CNC machine tool is quite important. Servo system faults are generally caused by problems with servo control units, servo motors, speed measuring motors, and encoders.
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