Broaching jig for face tooth workpiece, loading and unloading method and horizontal broaching machine

Abstract

The invention discloses a broaching clamp for an end surface tooth workpiece. The broaching clamp comprises a lifting support, a workpiece compressing device and a workpiece rotating device; the workpiece rotating device comprises a rotating cylinder rotatably matched with the top of the lifting support and an angle control mechanism; the workpiece compressing device comprises a compressing sleeve fixedly arranged on the lifting support, a tensioning shaft vertically penetrating through the rotating cylinder and the compressing sleeve and an operation disc in threaded connection with the outer wall of the top of the tensioning shaft and axially fixed; the bottom of the tensioning shaft has tensioning blocks capable of extending and retracting radially and movably matched with the workpiece; the tensioning shaft is linearly lifted up and down along with peripheral rotation of the operation disc; and the tensioning shaft and the inner peripheral surface of the rotating cylinder are connected by a feather key, such that the tensioning shaft can peripherally rotate along with the rotating cylinder. The invention further provides a horizontal broaching machine having the broaching clamp above and a disassembling method for the broaching clamp. The broaching clamp only needs clamping once, steady positions during broaching are ensured, machining quality and stability are better, and damage to the workpiece caused by dislocation up and down between the compressing sleeve and the workpiece is prevented.

Description

technical field [0001] The invention relates to the technical field of mechanical processing tools, in particular to a broaching fixture for a face tooth workpiece, a loading and unloading method thereof, and a horizontal broaching machine. Background technique [0002] In the automobile transmission system, the connecting part is constantly subjected to the impact of shearing and stretching, once it fails, it will cause a safety accident. The connection design scheme of the domestic heavy-duty vehicle transmission system is generally a flange structure, end face seam fit, and bolt connection. The transmission system relies on the friction between the two ends and the bolts to transmit torque during work. Under the impact of shearing and stretching, it is easy to cause bolt shearing phenomenon, resulting in failure. In order to ensure sufficient strength of the bolts, in the design, the volume of the parts should be increased as much as possible, and the number of bolts sho...

AI Technical Summary

Problems solved by technology

This processing method has the following defects: 1) due to the use of two clampings to process the face teeth, the accumulation of positioning errors is large, the quality of the workpiece is unstable, and waste products are prone to occur; The auxiliary time is long and the production efficiency is low

[0005] In addition, the cooling method of the traditional horizontal broaching machine is to directly spray the coolant from the outside to the upper outside of the workpiece, and then gradually flow to the bottom of the workpiece by virtue of the downward flow of the coolant. This method can play a certain role. cooling effect, but the effect is not significant

Because the mating surface of the workpiece and the broach is basically in the horizontal direction, when the coolant flows to the mating surface, only a part can act on the processing surface of the broach and the workpiece, but a large part of the coolant does not play a substantial role

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