Processing and positioning device and processing method for special-shaped hole of universal joint shaft

Abstract

The invention discloses a machining-positioning device and a machining method for a universal connecting shaft irregularly-shaped hole. The irregularly-shaped hole is a through hole provided with a round hole in the middle and irregular holes formed in two ends. The machining-positioning device comprises a pair of vices clamping the shaft end of a universal connecting shaft, a threaded jack supporting the ball end of the universal connecting shaft and a positioning plate arranged under the universal connecting haft irregular hole and further comprises positioning pins matched with a positioning hole and the round hole, wherein the positioning hole coaxial with the round hole of the irregular hole is formed in the positioning plate. The machining method utilizes the positioning device to achieve machining of the universal connecting shaft irregularly-shaped hole. By means of the machining-positioning device and the machining method, the irregular holes formed in two ends of the irregularly-shaped hole are consistent in machining-positioning standard, the coaxiality of irregular holes formed in the upper end and lower end of the universal connecting shaft irregularly-shaped hole is ensured, and machining accuracy of the holes is further ensured. Two sides of the universal connecting shaft bear consistent twisting force during transmission, the universal connecting shaft is stable in transmission, and the service life of the universal connecting shaft is prolonged.

Description

technical field [0001] The invention relates to a processing technology for a universal connection shaft hole, in particular to a processing and positioning device for a special-shaped hole of a universal connection shaft and a processing method thereof. Background technique [0002] At present, the universal joint shaft is used to connect two parts, and the parts swing in the ball joint hole of the universal joint shaft to meet the transmission needs. The middle part of the universal joint shaft is regular and the two ends are irregular, but the two ends need to ensure coaxial special-shaped holes. The processing steps are as follows: after the universal joint shaft is installed, first process a circular through hole, and process one end of the irregular hole; then Turn over the universal joint shaft for clamping, and then process the irregular hole at the other end. Since the universal joint shaft is turned over and clamped, it is difficult to ensure that the positioning ...

AI Technical Summary

Problems solved by technology

Since the universal joint shaft is turned over and clamped, it is difficult to ensure that the positioning position of the universal joint shaft is consistent with the first processing, resulting in the coaxiality of the irregular holes at both ends cannot be guaranteed, which affects the machining accuracy of the special-shaped hole; making the universal joint The two parts connected on the connecting shaft are not on the same axis, and the torque on both sides of the universal connecting shaft is inconsistent, which not only affects the smoothness of the transmission, but also greatly reduces the service life

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