Device and technology for machining shaft head end face chamber of multi-shaft-head universal joint

Abstract

The invention discloses a device for machining a shaft head end face chamber of a multi-shaft-head universal joint. The device comprises a punch press; an upper punching die assembly is arranged on apunch head of the punch press; a shaft head locating die assembly corresponding to the upper punching die assembly in position is arranged on a base platform of the punch press; the upper punching dieassembly comprises a punching die sleeve movably mounted on the punch head; the lower part of the punching die sleeve is movably connected with a punch forming die; a shaft head end face chamber punching V groove is formed in the lower end face of the punch forming die; and a punch forming die mounting groove is formed in the punching die sleeve. By utilizing the device for machining the shaft head end face chamfer, the machining efficiency of the end face chamfer is improved substantially, phenomena such as chamfer shifting generated during turning can not appear, and the machining quality of the shaft head end face chamfer is improved. The size of the shaft head chamfer of the universal joint is ensured effectively, the situation that a bearing dose not rotate flexibly on a shaft head caused by the shaft head chamfer shifting during assembling is avoided effectively, and the operating characteristics of a universal joint assembly are improved effectively.

Description

technical field [0001] The invention relates to the processing of auto parts, in particular to the chamfering processing of the end faces of the multi-axis universal joints of the cross shaft type. Background technique [0002] Such as figure 1 , is a kind of common cross shaft 1, and when the shaft head 11 of cross shaft 1 is chamfered 12 on the end face of the shaft head, the existing technology usually adopts lathe turning. There are the following disadvantages in lathe turning: 1. When the end face chamfering of the cross shaft head is chamfered, the concentricity of the two shaft heads is often too large, which will easily lead to the deviation of the end face chamfer of the shaft head during turning; 2. When the cross shaft is clamped by the lathe fixture, it will often swing slightly when rotating at high speed, which will also cause the offset of the chamfer on the end face of the shaft head; and when the chamfer on the same shaft head of the cross shaft has a large...

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