Regarding the correct use and maintenance of the main axis of the CNC Router

 1. Correct use of the main axis of the carving machine

（1）Connect the input and exit water pipe connector as required to check whether the connector is leaking and unobstructed. The cooling system of the water -cooling spindle should be connected at the general switch of the machine.

After turning to the middle of the shutdown, the cooling system should work continuously. Calculating the water volume of the cooling solution is calculated at 2.5 liters/kW · minute, and the flow of the cooling solution is 3 to 6 liters/minute.

Small electric main shafts take a small value, and the large electric main shaft is large. Cooling is required to use a separate water tank, and the coolant is required to be replaced regularly every month. The temperature of the coolant should be lower than the ambient temperature of 3 to 5 ° C, and it is best to control about 25 ° C.

（2）Select the inverter to match the voltage, power, and frequency of the electrical axis to match it. Set the inverter first to set the reference frequency of the inverter, and the reference frequency of the inverter is set at the frequency of the electrical spindle. The frequency, turning frequency, and the corresponding voltage of the inverter are set according to the frequency voltage curve of the electrical spindle. The current of the inverter

The rated current settings of the electric spindle. The carrier frequency is set according to the power size of the electric spindle, less than 10kW electrical main shaft is set at 8KHz, and the main shaft is more than 10KW electric shafts at 5KHz. The increase and deceleration time is set at about 10s. If the starting current exceeds the rated current, it should be extended and the deceleration time should be extended. Increase and deceleration time is too short

It is easy to cause the front nut loose.

（3） Connect the inverter with the three -phase power supply of the electrical axis. The three -phase power cord of the inverter should be welded on the foot 1 (U1), 2 (V1), 3 (W1). The inverter is then connected to the external power supply. After the power is connected, the inverter is moved to observe whether the rotation direction of the electrical spindle is consistent with the direction of the electrical axis indicator. Such as rotating direction

Inconsistent shutdown should be turned off and corrected immediately. The main shaft is strictly forbidden to run in the wrong rotation direction. The connection between the main shaft and the inverter should not exceed 25m.

（4）When installing the tool, the tone of the shaft head should be cleared on the dirt on the surface of the shaft head and the surface of the spring sandwich to avoid reducing accuracy. Special tools should be used when installing clamps and disassembling tools.

Pay attention to pretending to be too hard when it is installed and disassembled.

2. Maintenance and carving machine spindle

（1）The medium -frequency power supply rated voltage is connected to the main shaft, and the frequency must be consistent with the electrical main axis parameter. The speed of the electric shaft can adjust the frequency to modify, and at the same time, the voltage is also proportional to the change.

（2） During use, an accidental collision between the axis of the electrical main shaft and the workpiece should be avoided.

（3） The use of the main shafts of the electricity is not used for the time being. The compressed air blows the water water pipe coolant to avoid rust, block the small holes, and apply a protective device to the drying oil on the outside and store it in a dry place.

（4）Try to reduce air operation as much as possible, and it should be checked that it is common to check in and out of cooling water before booting.

（5）If the main shaft needs to be replaced by the bearing, it must be replaced by professional tools.

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