Hydrostatic Dresser and Dressing Method for Grinding Grinding Wheel of Inner Raceway of Superfinishing Ball Bearing

Abstract

Provided are a static pressure trimmer for an ultra precision ball bearing inner ring channel grinding abrasive wheel and a trimming method. The trimmer comprises a suspended wall machine frame and a servo motor installed on the suspended wall machine frame and further comprises a sleeve, an upper end cover, an upper hydrostatic bearing, a lower end cover, a lower hydrostatic bearing, a bow-shaped pen clamping head and a gold pen. An extending-out part of a spindle of the servo motor is sleeved with the sleeve, the upper end cover and the lower end cover are respectively arranged at the upper end and the lower end of the sleeve, the upper end cover, an upper hydrostatic bearing and the lower hydrostatic bearing are supported between the spindle and the sleeve, the upper hydrostatic bearing is located on the upper portion of the spindle, the lower hydrostatic bearing is located on the lower portion of the spindle, the bow-shaped pen clamping head is installed at the lower end of the spindle, and the gold pen is installed on the bow-shaped pen clamping head. The trimming method comprises a first step of adjusting the position to enable the abrasive wheel to be in contact with the gold pen; a second step of setting the turn angle of the spindle of the servo motor; a third step of starting an abrasive wheel driving shaft and the servo motor, and beginning to perform grinding trimming; a fourth step of shutting down the abrasive wheel driving shaft and the servo motor, and moving away the gold pen.

Description

Technical field [0001] The invention relates to the processing technology of super-finishing ball bearings, in particular to a static pressure dresser and a dressing method for a grinding wheel of a super-finishing ball bearing inner ring raceway. Background technique [0002] Liquid bearing is an important basic component of various mechanical equipment. Its accuracy, performance, life and reliability play a decisive role in the accuracy, performance, life and reliability of the host. Among mechanical products, liquid bearings are high-precision products, which not only require comprehensive support from many disciplines such as mathematics and physics, but also require material science, heat treatment technology, precision machining and measurement technology, numerical control technology and effective numerical methods and powerful functions. Computer technology and many other disciplines serve it, so liquid bearing is a product that represents the country's scientific and tec...

AI Technical Summary

Problems solved by technology

[0004] 1. High requirements on spindle rigidity;

[0005] 2. The precision requirements for the main shaft are very high. The axial movement and rotation accuracy of the main shaft affect the contour accuracy of the grinding wheel, which in turn directly affects the groove position accuracy of the liquid bearing ring

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