Grinding disc and equipment and method for accurate machining of rolling surface of cylindrical roller

Abstract

The invention discloses grinding equipment for accurate machining of the rolling surface of a cylindrical roller and a grinding disc kit. The grinding equipment comprises a main machine, the grindingdisc kit and a roller circulation disc external system, wherein the main machine comprises a substrate, a vertical column, a transverse beam, a sliding table, an upper tray, a lower tray, an axial loading device and a main shaft device; the roller circulation disc external system comprises a roller collecting device, a roller conveying system, a roller arrangement mechanism and a roller feeding mechanism; the grinding disc kit comprises a first grinding disc and a second grinding disc which are coaxial, and the fronts of the first grinding disc and the second grinding disc are arranged oppositely; the front of the first grinding disc comprises a group of linear grooves which are radially distributed on the base plane (right circular conical surface) of the first grinding disc; the front ofthe first grinding disc comprises one or multiple spiral grooves which are distributed on the base plane (right circular conical surface) of the second grinding disc; and the sum of the flaring angles of the base planes of the first grinding disc and the second grinding disc are 360 degrees. The grinding equipment has the capability of accurately machining the rolling surfaces of large quantitiesof cylindrical rollers.

Description

technical field [0001] The invention relates to a grinding disc set, grinding equipment and grinding method for finishing the rolling surface of a cylindrical roller, and belongs to the technical field of precision machining of bearing rolling bodies. Background technique [0002] Cylindrical roller bearings are widely used in various types of rotating machinery. As one of the important parts of cylindrical roller bearings, the shape accuracy and dimensional consistency of the rolling surface of the cylindrical roller have an important influence on the performance of the bearing. At this stage, the known machining process of cylindrical roller rolling surface is: blank forming (turning or cold heading or rolling), rough machining (soft grinding rolling surface), heat treatment, semi-finishing (hard grinding rolling surface) and finishing . The main technological method of known cylindrical roller rolling surface finishing is superfinishing. [0003] Superfinishing is a fi...

AI Technical Summary

Problems solved by technology

[0005] The above two superfinishing methods of cylindrical roller rolling surface have the following two technical defects: on the one hand, the change of wear state of oil stone and guide roller over time during the processing is not conducive to the improvement of shape accuracy and dimensional accuracy of cylindrical roller rolling surface; On the one hand, since the superfinishing equipment only processes a single (or a few) cylindrical rollers at the same time, the amount of material removed from the rolling surface of the processed cylindrical rollers is hardly affected by the difference in diameter of the rolling surface of the same batch of cylindrical rollers. Therefore, it is difficult to effectively improve the diameter dispersion of the processed cylindrical roller rolling surface by using superfinishing equipment to process the rolling surface of cylindrical rollers

[0017] Moreover, when using the existing double-disc straight-groove grinding disc to grind cylindrical rollers, the workpiece propulsion device must continuously apply axial thrust to the processed cylindrical rollers to maintain the axial feed of the processed cylindrical rollers along the straight grooves. , the requirement for the axial propulsion capacity of the workpiece propulsion device is relatively high

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