Patent ID: 9498864
Filing Date: 2016-11-22
CPC Classification: B24B

Claim Text:
1. A method for grinding a spring with high quality and high efficiency, comprising the steps as follows: Firstly, at least one of an upper grinding wheel and a lower grinding wheel is configured to comprise an inner grinding wheel and an outer grinding wheel, wherein the inner grinding wheel is fitted in the outer grinding wheel; the inner grinding wheel or the outer grinding wheel is driven by a transmission mechanism, the inner grinding wheel and the outer grinding wheel rotating in opposite directions; after a complete spring is fed to a space between the upper grinding wheel and the lower grinding wheel, the complete spring is moved back and forth in the plane of the grinding wheels; at the same time, the grinding wheels are fed and then withdrawn after the spring is well ground; then, the ground spring movement is stopped and it is moved away from the space between the two grinding wheels, and finally the complete spring is removed.