Bearing roller ball base surface superfinishing mechanism

Abstract

The invention provides a bearing roller ball base surface superfinishing mechanism. The bearing roller ball base surface superfinishing mechanism comprises a mounting base and a superfinishing assembly mounted on the mounting base. The bearing roller ball base surface superfinishing mechanism further comprises an oscillation assembly and a reset assembly. The superfinishing assembly comprises a coaming mounted on the mounting base and at least one set of superfinishing unit. The oscillation assembly is mounted on the mounting base. A plurality of sets of superfinishing units are arranged, andoilstones of the multiple sets of the superfinishing units are arranged on the coaming according to roller motion path trajectories so that the roller ball base surface can be ground along a curvilinear path. Meanwhile, the oscillation assembly is matched to drive all the superfinishing units to conduct fixed-amplitude oscillation grinding synchronously in the vertical direction. The effect that the amplitude of the oilstones is consistent to the frequency of vibrations is guaranteed, superfinishing precision of the roller ball base surface is improved and roller machining quality is also improved.

Description

technical field [0001] The invention relates to the technical field of superfinishing the base surface of bearing rollers, in particular to a superfinishing mechanism for the base surface of bearing rollers. Background technique [0002] Since the speed of the high-speed rail is as high as 200km / h, when selecting the bearing used for the wheel of the high-speed rail, the machining accuracy of the ball base surface of the bearing will be higher than that of the ordinary bearing, so as to meet the high-speed rail when turning and meeting cars. load carrying requirements. [0003] The processing method commonly used in the superfinishing of the bearing roller ball base surface is to complete the rough grinding, finishing and superfinishing processes on a superfinishing machine, and during the rough grinding, finishing and superfinishing process, Grinding process is carried out with rough oil stone grinding wheel, essential oil stone and ultra-fine oil stone. [0004] In the p...

AI Technical Summary

Problems solved by technology

[0008] 1. A single oscillating mechanism drives a single oil stone to oscillate, which will cause the amplitude and frequency of the oil stones to be inconsistent, and affect the consistency of the machining accuracy of the roller ball base surface;

[0009] 2. During the oscillation process, only one oil stone is driven to oscillate, while there are multiple oil stones installed on the superfinishing machine, the oscillation frequency between the oil stones is inconsistent, and they will interfere with each other, resulting in a reduction in the machining accuracy of the roller ball base surface;

[0010] 3. When the drive wheel and the groove on the sheave are installed together, it is necessary to ensure that the drive wheel rotates freely in the groove. Therefore, there must be a fit gap, and the super-finishing machine itself is a super-finishing device, and the existing fit gap will limit the super-finishing machine processing accuracy;

[0011] 4. The driving wheel cooperates with the groove on the sheave, and can only drive the whetstone clip to vibrate along the guide of the groove, and cannot realize the adjustable amplitude of the whetstone clip vibration

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