A needle roller grinding device with arc convexity

Abstract

The invention discloses an arc convexity roller pin grinding device. The arc convexity roller pin grinding device comprises a frame, a feed vibration plate, a guide tube, a guide wheel frame assembly, a guide wheel, a first dressing diamond pen, a first guide plate, a first positioning slider, a grinding wheel, a second dressing diamond pen, a second guide plate, a second positioning slider and a roller pin. The first dressing diamond pen, the first guide plate and the first positioning slider are arranged beside the guide wheel. The first dressing diamond pen is fixedly connected with the first positioning slider. The first guide plate is fixedly mounted above the guide wheel. The lower end surface of the first guide plate is of an arc convexity structure from the front to the rear. The first positioning slider can move back and forth along the first guide plate. The front portion of the first dressing diamond pen contacts with the guide wheel. The second dressing diamond pen, the second guide plate and the second positioning slider are mounted beside the grinding wheel. The arc convexity roller pin grinding device can directly and automatically process the arc convexity roller pin without any additional steps, and the performance of a universal joint is improved and the service life of the universal joint is prolonged. The arc convexity roller pin grinding device is simple in structure, high in processing efficiency and low in cost.

Description

【Technical field】 [0001] The invention relates to a processing device for auto parts, in particular to a device for processing arc convex needle rollers in an automobile cross shaft universal joint. 【Background technique】 [0002] The cross shaft universal joint is an important part in the automobile transmission system. A needle roller is arranged between the journal of the cross shaft and the sleeve. [0003] like Figure 5 As shown, the needle rollers in cross-axis universal joints are all normal cylinders at present, and the length and raceway of the needle rollers are both finite. Under the load, there will be serious edge effects at both ends of the contact area, so that the cross Shaft joint assembly life is reduced. Because the needle rollers in the cross-axis universal joint are in the shape of a normal cylinder, there is currently no special processing equipment for arc convex needle rollers. 【Content of invention】 [0004] The object of the present invention ...

AI Technical Summary

Problems solved by technology

[0003] like Figure 5 As shown, the needle rollers in cross-axis universal joints are all normal cylinders at present, and the length and raceway of the needle rollers are both finite. Under the load, there will be serious edge effects at both ends of the contact area, so that the cross Shaft universal joint assembly life reduction

Because the needle rollers in the cross-axis universal joint are in the shape of a normal cylinder, there is currently no special arc convex needle roller processing equipment.

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