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A brief description of the requirements of high-speed grinding on grinding wheels and machine tools

2020-04-20 13:24:19

High-speed grinding wheels must meet the following requirements:

(1) The mechanical strength of the grinding wheel must be able to withstand the cutting forces during high-speed grinding;

(2) Safety and reliability during high-speed grinding;

(3) Sharp appearance;

(4) The bond must have high wear resistance to reduce the wear of the grinding wheel.

High-speed grinding requirements for machine tools:

(1) High-speed spindle and its bearings: The bearings of high-speed spindles generally use angular contact ball bearings. In order to reduce the heat of the spindle and increase the maximum speed of the spindle, most of the new generation of high-speed electric spindles are lubricated with oil and gas.

(2) In addition to the functions of ordinary grinding machines, high-speed grinding machines also need to meet the following special requirements: high dynamic accuracy, high damping, high vibration resistance and thermal stability; highly automated and reliable grinding process.

(3) After the speed of the grinding wheel is increased, its kinetic energy will also increase. If the grinding wheel breaks, it will obviously cause greater damage to people and equipment than ordinary grinding. For this purpose, in addition to increasing the strength of the grinding wheel itself, it is designed specifically The grinding wheel protective cover used for high-speed grinding is an important measure to ensure safety.

Grinding wheel