Methods of prolonging the service life of electric spindle

2021-5-9

Generally, the service life of Essa high-speed motor spindle is designed to be 36,000 hours, but in different domestic use environments, for different service life of the device, correct and reasonable use of the motor spindle can greatly increase the service life!

1. Clamping spindle motor (suitable for drilling/grooving/grinding/polishing etc.)

1, Collet (ER type) pressure cap and tool installation: The tool must be installed to ensure the rotation accuracy, otherwise violent vibration will occur, affecting the quality and efficiency of engraving (milling) and bearing life. The collet, pressure cap, cutter and the taper hole at the front end of the spindle must be cleaned very carefully, and excessive force should be avoided when installing and disassembling the cutter.

2. To avoid impact: Strong impact, especially the maintenance end of the imported spindle and the front end cover must not be impacted, otherwise it will damage the precision bearing and the precision of the spindle, and will cause the loss of the rotation accuracy of the spindle.

3. After the installation is completed, you need to check the runout of the root of the tool <0.01MM. If it is out of tolerance, you need to loosen and tighten it repeatedly and adjust the contact surface of the tool handle to correct it. Do not hit it randomly. If it is beyond the range, check all parts Problems such as coordination or rack foundation, etc., should be used after processing.

2. High-speed cutting motor (suitable for clip saw blade cutting/grinding wheel grinding and polishing/profile cutting, etc.)

1. Make sure that the front and rear end covers of the clamping saw blade are pressed flat without gaps, and the bonding surface is clean and free of impurities. The purpose of this is to make the high-speed cutting motor balanced and stable during high-speed rotation, and to avoid vibration caused by excessive centrifugal force.

2. When the profile is cut and polished, the shaft end of the motor bears a large longitudinal force. It is necessary to determine the appropriate feed speed to avoid excessive feed, crush the end bearing, and reduce the service life.

3. Reasonably formulate overload protection rules, and reasonably set the overload time and overload ratio of the inverter, which can greatly reduce the risk of burn-in.

For the temporarily unused electric spindle, use compressed air to blow out the remaining water in the water chamber. The sleeve and shaft head shaft hole should be oiled to prevent rust and placed in a cool and dry place.