Fan failure: The fan in the machine tool can cool and cool the core equipment, effectively preventing the equipment from overheating and damage. At the end of the long holiday, the machine fan often "strikes", which is caused by oil pollution. When the machine stops, the fan inside the machine will also stop. At this time, the oil in the machine tool will flow into the bearings of the fan, causing a short circuit failure of the fan's circuit, and the fan will alarm or fail to start when the machine is turned on again. The longer the downtime, the greater the risk.
Seal failure: It is necessary to use seals in the hydraulic and pneumatic equipment of the machine tool, in order to ensure the tightness of the device and maintain its normal pressure supply. Seals are generally rubber products, which are prone to aging, especially during long vacations, when the machine tool is not running for a long time and the hydraulic pressure does not flow. This will more easily cause the seals to harden, leading to machine tool oil leakage and insufficient pressure provided by hydraulic devices.
Oil path blocked: The reason for oil path blocked is because the machine tool is stopped for a long time, and the dirt inside the oil path is continuously deposited. Blocking the oil circuit will cause the lubrication system of the machine tool to fail, and the failure of the lubrication system will cause many other serious problems. According to statistics, more than 40% of various common faults of machine tools are related to lubrication faults.
Malfunction of the machine tool travel switch: The machine tool travel switch is an important device that limits the mechanical travel range of the machine coordinate axis. When the moving part of the machine is pressed against the transmission part of the travel switch, its internal contacts act, and the control circuit is turned on, changed or disconnected. Meet the control requirements of the circuit. A spring is generally installed inside the travel switch. If the spring is not turned on for a long time, it will cause the spring to deform due to long-term force and can no longer return to its original state.
Driver, power supply, motherboard and other circuit board failures: In CNC machine tools, the role of circuit boards need not be said much. There are a large number of capacitors on the circuit board. If no power is applied for a long time, these capacitors will age and reduce the capacity, which will cause damage to the machine tool circuit. In addition, the main reason for the failure of the circuit board is that the circuit board will not be at the bottom temperature for a long time, which will cause condensate and cause a short circuit when it is turned on.
Machine tool battery failure: Generally, numerical control systems are equipped with batteries. It should be noted that the battery mentioned here is not the power supply of the entire equipment, but a device that supplies power to some parts. For example, the system battery is used to save system parameters; the battery for the absolute position encoder is used to remember the zero position. Even when not turned on, the power in these batteries will drain slowly. If the machine is not turned on for a long time, it is easy to cause the battery to run out and cause machine data loss.