Magnetic abrasive disk for finishing rolling surface of cylindrical roller, apparatus and method

Abstract

The invention discloses an abrasive device and a magnetic abrasive disk kit for finishing a rolling surface of a cylindrical roller made of ferromagnetic material. The grinding equipment includes a main machine, a magnetic grinding disc set and a roller circulating disc external system. The main engine comprises a base, a column, a cross beam, a sliding table, an upper tray, a lower tray, an axialloading device and a spindle device, wherein the main engine comprises a base, a column, a cross beam, a sliding table, an upper tray, a lower tray, an axial loading device and a spindle device. Theouter system of the roller circulating disk comprises a roller collecting device, a roller demagnetizing device, a roller conveying system, a roller finishing mechanism and a roller feeding mechanism.The magnetic abrasive disk kit includes a pair of first and second abrasive disks coaxially and oppositely disposed facing each other. The front surface of the first abrasive disk includes a set of linear grooves radially distributed on the base surface (right conical surface) of the first abrasive disk, the front surface of the second abrasive disk is the working surface (right conical surface)of the second abrasive disk, and an annular magnetic structure is embedded in the base body of the second abrasive disk. A lapping device of that invention has the finis machining capability of a large numb of cylindrical roller rolling surfaces made of ferromagnetic material.

Description

technical field [0001] The invention relates to a magnetic grinding disk set, grinding equipment and grinding method for finishing the rolling surface of cylindrical rollers of ferromagnetic materials (such as GCr15, G20CrNi2MoA, Cr4Mo4V, etc.), belonging 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 ...

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

[0016] However, for the existing double-disk straight-groove grinding disc, the number of straight grooves that can be set on the second grinding disc is less due to the restriction of the diameter of the second grinding disc's central through hole.

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