Tapered roller outer diameter grinding method and device based on large convexity

Abstract

The invention discloses a tapered roller outer diameter grinding method and device based on large convexity. A grinding wheel, a guide wheel and a guide plate are ground and positioned through a centerless grinding machine, the outer diameter of the tapered roller is ground through a cut-in method, a supporting angle of an existing guide plate is changed, the supporting angle of the existing guideplate is increased so that component force of the weight of the roller is increased to press the guide wheel, that is, contact friction force of the guide wheel and the roller is increased, and the roller is driven to rotate; the contact area of the existing guide plate and the roller is changed, an alloy bar is inlaid on a supporting slope of the guide plate, linear contact between the guide plate and the outer diameter of the roller is changed into point contact between a cylindrical surface of the alloy bar and the outer diameter of the roller, the contact area is reduced, and the roller can be driven to rotate conveniently. By changing a positioning method and a structure of the guide plate, the guide wheel can drive the machined roller to rotate when being started to rotate, small-feed grinding and spark-free grinding of the grinding wheel are achieved, and the machining precision, the machining efficiency and the stability of the machining quality of the roller are improved.

Description

Technical field: [0001] The invention relates to a tapered roller grinding method, in particular to a large-convex tapered roller outer diameter grinding method and device. Background technique: [0002] Usually, the convexity of the plain line of the outer diameter of the tapered roller is small, and the convexity is generally 0.02mm-0.04mm. This convexity is realized by a centerless cylindrical grinding machine or an ultra-precision machine tool, and its processing accuracy can meet the requirements of the drawing. With the continuous development of the national economy, the demand for high-precision tapered rollers with large convexity (0.14mm) in the high-end market is increasing, that is, the high-precision machining accuracy of large-convex tapered rollers cannot meet The requirements of process drawings are the problems and development trends that need to be solved in my country's bearing industry and even in the future. [0003] At present, the basic structure of cen...

AI Technical Summary

Problems solved by technology

The existing problems are: ① The rotation of the guide wheel cannot drive the processed roller to rotate. Only when the grinding wheel achieves feed grinding and reaches a certain grinding spark (reaching a certain contact extrusion force), can the roller be driven to rotate, and the roller can be processed. circular grinding motion

As a result, the roundness of the processed roller cannot meet the accuracy requirements of the process drawing ≤0.001mm

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