What are the abnormal operation of the machine tool phenomenon?

Machine tool normal operation, the parameters are stable in the permissible range; when the parameters deviate from the normal range, the system or the machine tool itself or a part of the equipment, parts of the failure must be identified immediately to change the cause, to prevent the development of accidents. Common anomalies are: abnormal temperature rise, abnormal speed, vibration and noise, excessive noise, impact sound, abnormal input and output parameters, internal defects in the machine tool.

(1) abnormal temperature rise. Commonly used in a variety of machine tools and bearing gearbox motor. Temperature rise above the permissible value, indicating that the machine tool overload or parts failure, severe lubricant can be smelled and see the stench of white smoke.

(2) abnormal speed. Machine tool operating speed suddenly more than or less than the normal speed, may be due to sudden changes in load or mechanical failure of the machine tool.

(3) excessive vibration and noise. Machine tool failure rate due to vibration accounts for 60% to 70% of the overall failure. The causes are manifold, such as poor machine tool design, machine tool manufacturing defects, installation defects, parts and components of the action of the imbalance, parts and components of wear and tear, lack of lubrication, machine tools into the foreign body, etc..

(4) impact sound. Loose parts off, into the foreign body, rotor imbalance may produce impact sound.

(5) abnormal input and output parameters. Performance: changes in processing accuracy; changes in machine efficiency (such as pump efficiency); abnormal power consumption of machine tools; abnormal quality of processed products, such as ball mill crushed material size changes; charging volume suddenly reduced, indicating that the production system has a leak or clogging; machine tool with a sick run when the output changes, and so on.

(6) machine tool internal defects. Including the parts that make up the machine tool cracks, electrical equipment and facilities insulation quality degradation, defects due to corrosion and so on.

All of the above phenomena are precursors of accidents and hidden dangers. Accident precursors in addition to the use of human hearing, vision and feeling can detect some obvious phenomena (such as smoke, noise, vibration, temperature changes, etc.), the main should be installed in the production line control instruments and measuring instruments or special measuring instruments to monitor.