Grinding disc, equipment and method for finish machining of rolling surface of convex circular cone roller

Abstract

The invention discloses grinding equipment and grinding disc external member for finish machining of the rolling surface of a convexity circular cone roller. The grinding equipment comprises a main machine, the grinding disc external member and a roller circulating disc external system. The main machine comprises a base, a stand column, a cross beam, a sliding table, an upper tray, a lower tray, an axial loading device and a main shaft device. The roller circulating disc external system comprises a roller collecting device, a roller conveying system, a roller cleaning mechanism and a roller feeding mechanism. The grinding disc external member comprises a pair of first and second grinding discs, wherein the front surfaces of the first and second grinding discs are coaxially arranged are arranged in an opposite mode. The front surface of the first grinding disc comprises a group of concave arc grooves radially distributed on the first grinding disc base surface (concave arc rotating surface), the front surface of the second grinding disc comprises one or more spiral grooves distributed on the second grinding disc base surface ( convex arc rotating surface ), and the radius of curvature of the base circle and the radius of curvature of the base surface cutting line of the first and second grinding discs are equal. The grinding equipment and grinding disc external member for finishmachining of the rolling surface of the convexity circular cone roller has the finish machining capability of rolling surfaces of large-scale convexity circular cone rollers.

Description

technical field [0001] The invention relates to a grinding disc set, grinding equipment and grinding method for finishing the rolling surface of convex tapered rollers, and belongs to the technical field of precision machining of bearing rolling bodies. Background technique [0002] Tapered roller bearings are widely used in various types of rotating machinery. As one of the important parts of tapered roller bearings, the convex tapered roller has an important influence on the performance of the bearing due to the shape accuracy and dimensional consistency of its rolling surface. At present, the known machining process of the rolling surface of the convex tapered roller 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 process for finishing the rolling surface of known convex tapered rollers is superfinishing. [0003] Superfinishin...

AI Technical Summary

Problems solved by technology

[0005] The above two methods of superfinishing the rolling surface of convex tapered 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 tapered rollers On the other hand, since the superfinishing equipment only processes a single (or a few) convex tapered rollers at the same time, the amount of material removed from the rolling surface of the processed convex tapered rollers is almost affected by the same batch The influence of the difference in diameter of the rolling surface of the convex tapered roller, so it is difficult to effectively improve the diameter dispersion of the rolling surface of the processed convex tapered roller by using superfinishing equipment to process the rolling surface of the convex tapered roller

Material removal on the roller surface during machining is uncertain, and this method cannot improve the dimensional accuracy and diameter dispersion of the roller

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