Maintenance and upkeep of the spindle of high speed engraving and milling machine

One of the key components of a high speed engraving and milling machine is the high speed electric spindle. Its strengths and weaknesses are immediately related to the processing speed and precision of the high speed engraving and milling machine, therefore, the usual maintenance of the spindle seems to be of vital importance, because excellent maintenance not only reduces the failure rate of the equipment and increases its service life. In addition, it can also make the precision of the spindle stronger. The following is how to maintain the high speed spindle in general.

High-speed engraving and milling machine spindle maintenance countermeasures:

First, the spindle should be heated after every startup, and the spindle speed ratio should be according to the standard from low speed to high speed operation. When the rotational speed ratio to do the required speed ratio and full load operation stability, temperature cooling before production and processing, so as to ensure good processing accuracy.

Second, when the spindle is not needed for a long time, the spindle taper hole should be wrapped with commercial insurance film, put on the moisture-proof agent, to avoid long-term non-application of the spindle caused by internal rolling bearing corrosion.

Third, in the operation process is prohibited to knock, collision spindle rotor end. Provides that the operator must pay attention to the Z-axis start CNC knife point, to approve the key to start the main parameters of the CNC knife point, to avoid operational errors. To prevent damage to the rolling bearings of the spindle motor caused by collision and knife sticking in the operation process. In the event of a tool stick, shut down the machine immediately to avoid higher damage to the rolling bearings caused by high speed operation. Subsequently, start the break-in period from the low-speed gear, and the time should be longer than the normal break-in period until the motor runs stably and everything is normal before starting the work.

Fourth, after the high speed precision machining engraving and milling machine is turned on, the refrigeration system outside the electric spindle should be checked if the operation is normal, and then the spindle should be turned on. If you are using an oil cooler to cool the spindle, then the temperature of the oil cooler should be set at 26 degrees Celsius, too high or too low a temperature on the spindle will cause damage.

Fifth, for the choice of water circulation system cooling spindle, to pay close attention to the water body, it is good to add anti-rust oil in the cooling circulating water, immediately stronger cooling circulating water. Operator staff to cultivate the habit of observing the temperature in the work, when the temperature exceeds 30 ℃ will need to immediately remove and replace the water.