Grinding disk, apparatus and method for finishing rolling surface of convex cylindrical roller

Abstract

A lapping apparatus and a lapping disk kit for finis a rolling surface of a convex cylindrical roller are disclose. That lapping apparatus includes a main body, a lapping disk kit and a roller circulation disk out system. 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, 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. The outer system of the roller circulating disk comprises a roller collecting device, a roller conveying system, a roller finishing mechanism and a roller feeding mechanism. The abrasive disk kit includes a pair of first and second abrasive disks coaxially and oppositely disposed facing each other. A front surface of the first abrasive disk includes a set of concave arc grooves radially distributed on a base surface of the first abrasive disk (concave circular arc rotating surface), The front surface of the second abrasive disk includes one or more spiral grooves distributed on the base surface of the second abrasive disk (convex circular arc rotating surface),and the radii of curvature of the base circle and the radii of curvature of the cross-section of the base surface of the first and second abrasive disks are equal to each other. A lapping apparatus ofthat present invention has the finis machining capability of a rolling surface of a large numb of convexity cylindrical rollers.

Description

technical field [0001] The invention relates to a grinding disc kit, grinding equipment and a grinding method for finishing the rolling surface of a convex 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 convex cylindrical roller have an important influence on the performance of the bearing. At the present stage, the known machining processes for the rolling surface of convex cylindrical rollers are: 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 the well-known rolling surface finishing of convex cylindrica...

AI Technical Summary

Problems solved by technology

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

[0016] However, due to the limitations of the structure of the grinding disc and the processing principle, the above-mentioned double-disc straight-groove grinding disc, grinding equipment and grinding method do not have the ability to finish the rolling surface of the convex cylindrical roller

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