The key to preventive maintenance of CNC machine tools is to strengthen daily maintenance. The main maintenance work includes the following: daily inspection, weekly inspection, monthly inspection, quarterly inspection and half-year inspection. The preventive maintenance of CNC machine tools is as follows:
1. Daily Inspection of CNC Machining Machine Tools
Its main projects include hydraulic system, spindle lubrication system, guide rail lubrication system, cooling system, air pressure system. Daily inspection is based on the normal conditions of each system to be tested. For example, when testing the process of the spindle lubrication system, the power supply lamp should be on, the oil pressure pump should be running normally, and if the power supply lamp is not on, the spindle should be kept in a stop state and contacted with the mechanical engineer. Maintenance.
2. Weekly Inspection of CNC Machining Machine Tools
Its main items include machine tool parts, spindle lubrication system, which should be checked correctly every week, especially for machine tool parts to remove iron chips and carry out external debris cleaning.
3. Monthly Inspection of CNC Machining Machine Tools
Mainly check the power supply and air dryer. The power supply voltage is rated at 180V-220V under normal conditions and the frequency is 50Hz. If there is any abnormality, it should be measured and adjusted. The air dryer should be disassembled once a month and then cleaned and assembled.
4. Quarterly Inspection of CNC Machining Machine Tools
Quarterly inspection should be carried out mainly from three aspects: machine tool bed, hydraulic system and spindle lubrication system. For example, when inspecting the machine tool bed, it mainly depends on whether the accuracy of the machine tool and the level of the machine tool meet the requirements of the manual. If there are any problems, we should contact the mechanical engineer immediately. When inspecting the hydraulic system and the main shaft lubrication system, if there are any problems, the new oil 6oL and 20L should be replaced and cleaned separately.
5. CNC Machining CNC Machine Tool Half-year Inspection
Half a year later, the hydraulic system, spindle lubrication system and X-axis of the machine tool should be inspected. If there is a problem, the new oil should be replaced and then the cleaning work should be carried out. After knowing and mastering the knowledge of preventive maintenance in an all-round way, we must have a better understanding and necessary mastery of the causes and treatment of abnormal phenomena in oil pressure system. For example, when the phenomenon of oil pump not injecting oil, abnormal pressure, noise and so on occurs, we should know what the main reasons are and what the corresponding solutions are.
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