Synchronizer fixed tooth trislot milling clamp

Abstract

The invention discloses a synchronizer fixed tooth trislot milling clamp which comprises a fixed core shaft and a nut. The nut is matched with the rear end of the fixed core shaft so as to fix a tooth shell workpiece. The synchronizer fixed tooth trislot milling clamp further comprises a transition flange plate which is installed on a scale division head. A front center used for locating and clamping the front end of the fixed core shaft is arranged in the center of the transition flange plate. A tail center used for locating and clamping the rear end of the fixed core shaft is arranged at the rear end of the fixed core shaft. The synchronizer fixed tooth trislot milling clamp further comprises a locating seat and a locating body, wherein the locating seat is perpendicular to the locating body. The locating seat is vertically connected with the upper portion of the transition flange plate. The locating body is vertically connected with the upper side of the fixed core shaft. The center of the front center, the fixed core shaft, the tooth shell workpiece and the rail center are in the same line. According to the synchronizer fixed tooth trislot milling clamp, the front center and the tail center are adopted to conduct locating and clamping, the two centers can conduct locating and clamping and meanwhile meet processing requirements, the locating seat and the locating body have directional effect in each clamping, and therefore the requirement that degree of symmetry of a six-slot to outer spline teeth is 0.1 can be met, and processing precision can meet craft requirements.

Description

technical field [0001] The invention relates to a three-slot milling jig for fixed teeth of a synchronizer, which belongs to the field of machining jigs. Background technique [0002] In the automobile transmission, the synchronizer assembly is the key component. The synchronizer assembly is mainly composed of the synchronizer gear housing (fixed teeth), the synchronizer gear sleeve (sliding teeth), sliders, springs and other parts. Among them, the synchronizer gear The shell (fixed tooth) and the slider play an important role in the gear shifting process of the synchronizer. The smoothness of the gear shift and the stability of the car during operation have a great relationship with the accuracy of the gear housing and the slider of the synchronizer. , therefore, if figure 1 As shown, the position of the slider groove on the gear housing relative to the external spline, that is, the symmetry, is a key control dimension during the processing of the gear housing, so milling ...

AI Technical Summary

Problems solved by technology

Due to the traditional one-clip-one-top processing method, the indexing of the three equal grooves is realized by the electronic indexing head. The electronic indexing head we use is positioned by the positioning pin, so when indexing, the indexing head has a loose In this way, the tail center must be withdrawn first, so the three-slot trisection milling tail center has to be positioned three times, and the operation is cumbersome. Even in this case, the three-slot trisection and center-to-center symmetry are unstable , the machining accuracy of the three slots is not high. By measuring the symmetry A of the three slots is about 0.15, and the trisection error is about 15', the requirement of 0.1 for the symmetry of the six slots' external spline teeth cannot be guaranteed.

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