Precision lifting mechanism for gear ring of grinding machine

Abstract

The invention discloses a precision lifting mechanism for a gear ring of a grinding machine. The mechanism comprises a base, a fixing shaft which is fixedly supported by the base, and a gear ring assembly, wherein the gear ring assembly comprises a gear ring hollow shaft, a driven gear, a gear ring bracket, a gear ring lifting seat and the gear ring; the driven gear and the gear ring bracket are fixed on the gear ring hollow shaft; the gear ring lifting seat is fixed on the gear ring hollow shaft through a bearing; the gear ring assembly is sleeved on the fixing shaft through the gear ring hollow shaft and is in axial sliding fit with the fixing shaft; a bearing is arranged between the gear ring hollow shaft and the fixing shaft to realize peripheral rolling fit between the gear ring hollow shaft and the fixing shaft; the gear ring is fixed on the gear ring bracket; a ball screw component is arranged on the base and is connected with the gear ring lifting seat in the gear ring assembly; and a chain wheel and chain transmission mechanism for driving the ball screw component to synchronously move is arranged on the base. The invention has the advantages that: the mechanism makes thegear ring accurately positioned and is convenient to control.

Description

technical field [0001] The patent of the present invention relates to the field of grinding and polishing processing equipment, specifically a precision lifting mechanism for the ring gear of a high-precision vertical grinding machine. Background technique [0002] At present, the placing and taking of the workpiece of the grinding machine is mainly realized by lifting and moving the ring gear in two ways of an oil cylinder or an air cylinder. Its shortcoming one is that the positioning accuracy of the ring gear is not high in the lifting process, and the positioning process is difficult to control; the second is that the rotation accuracy of the ring gear is not high. All of these have an impact on the accuracy of grinding workpieces. Yang Yuhong and others proposed a lifting device that uses an oil cylinder to drive the ring gear (patent number: 200920062999.7). The disadvantage is that the positioning of the piston rod of the oil cylinder is difficult to stay with the we...

AI Technical Summary

Problems solved by technology

Its shortcomings are that the positioning accuracy of the ring gear is not high during the lifting process, and the positioning process is difficult to control; the second is that the rotation accuracy of the ring gear is not high

Yang Yuhong and others proposed a lifting device that uses an oil cylinder to drive the ring gear (patent number: 200920062999.7). The disadvantage is that the positioning of the piston rod of the oil cylinder is difficult to stay with the wear and tear of the grinding disc and the planetary wheel. In different accurate positions, it is also necessary to increase the hydraulic system

Images