Grinding jig device and grinding method

Abstract

The present invention discloses a grinding clamp device and a grinding method which are mainly used for raising the cylindricity, taper and roundness of a hydrostatic spindle shell inner hole surface and a hydrostatic bearing inner hole surface. The device comprises a tongue tail cone sleeve, an automatic centering jaw, a universal connection knot, a shaft sleeve and a grinding rod. An automatic centering three-jaw is fixed to the tongue tail cone sleeve by using a screw. The three jaws of the automatic centering three-jaw are connected to the universal connection knot, and the grinding rod is connected to the shaft sleeve and is fixed by a screw. The whole grinding clamp is sleeved by a rockerarm drilling machine, a rockerarm driller is started to rotate forwardly and reversely to control the grinding of the grinding rod, manual and automatic control can be realized, the vertical deviation of the ground hydrostatic spindle shell inner hole surface and hydrostatic bearing inner hole surface can be smaller than 0.002mm, the taper, roundness and straightness of a shell hole diameter and a hydrostatic bearing are improved, and the requirements of assembly installation process of a hydrostatic bearing and a hydrostatic spindle are satisfied.

Description

technical field [0001] The invention relates to a grinding fixture device and a grinding method. Using the grinding fixture device and grinding method to grind a static pressure spindle shell and a static pressure spindle can improve its linearity, taper, roundness and cylindricity, and meet the requirements of the static pressure spindle. Assembly and installation process of shell and hydrostatic bearing, hydrostatic bearing and main shaft. Background technique [0002] Hydrostatic bearings are widely used in machine tools and other fields in my country, because hydrostatic bearings have the characteristics of small frictional resistance, high transmission efficiency, good anti-vibration performance, long service life, high bearing capacity and high rotation accuracy and stability. However, its processing technology is complicated, and often the processing of a single hydrostatic bearing meets the requirements of the drawing, and the test and adjustment after assembly canno...

AI Technical Summary

Problems solved by technology

However, its processing technology is complicated, and often the processing of a single static pressure bearing meets the requirements of the drawing, and the test and adjustment after assembly and assembly cannot meet the design requirements, mainly because the scraping and assembly process of the static pressure bearing cannot meet the requirements

[0003] Most of the surface of the inner hole of the hydrostatic spindle housing and the surface of the inner hole of the hydrostatic bearing are manually ground. The characteristics of manual grinding are high in precision but low in efficiency and laborious.

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