CNC centering machine processing preheating method
1.CNC machine tool thermal characteristics cnc machining accuracy has a key impact, accounting for almost half of the machining accuracy; machine tool spindle.XYZ slide is commonly used in the movement axis. In motion conditions, the screw and other components will become hot due to load and friction, but the spindle and spindle will affect the thermal expansion deviation chain in the machining accuracy XYZ and the operating table relative to the offset of the axis of motion components.
2. Under long-term shutdown and thermal balance conditions, the machining accuracy of the machine tool varies widely; the reason is that after a period of operation, the temperature of the spindle and motion axis is relatively fixed. With the change of machining time, the thermal accuracy tends to be stable, indicating that the spindle and moving parts need to be preheated before machining.
3. If the equipment is left idle for more than several days, it is recommended to preheat for more than 30 minutes before high precision machining:If the equipment is left for only a few hours, it is recommended to preheat for 5-10 minutes before high precision machining.
4. The warm-up process is to allow the machine to participate in the repeated motion of the machining axes. For example, multi-axis linkage XYZ axis can be performed to move from the lower left corner of the coordinate system to the upper right corner, repeatedly going diagonally.
5. CNC CNC machining plant execution, you can write macro programs on the machine tool to allow the machine tool to warm up repeatedly.
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