Pull-up type vertical inner broaching machine device for single key slot broaching

Abstract

The invention provides a pull-up type vertical inner broaching machine device for single key slot broaching. The pull-up type vertical inner broaching machine device for single key slot broaching comprises a base, a vertical broaching connector, a pawl, springs and positioning pins, wherein the pawl is used for providing clamping force for a broaching tool, the positioning pins are used for fixingthe pawl, the vertical broaching connector is in a circular step shape and is clamped by a chuck of a vertical inner broaching machine, threads are formed in the middle position of the vertical broaching connector, a nut is connected to the vertical broaching connector through the threads, the base comprises a bottom plate, an upper supporting plate and a lower supporting plate, the upper supporting plate and the lower supporting plate are arranged oppositely and are vertically arranged on the bottom plate, the vertical broaching connector is vertically inserted into and matched with the bottom plate, the pawl comprise two pawl assemblies which are fixed on the upper support plate and the lower support plate through positioning pins correspondingly, the pawl assemblies can rotate around the positioning pins, and the two ends of the springs are connected to the pawl assemblies and the bottom plate. Compared with the prior art, the pull-up type vertical inner broaching machine device for single key slot broaching has the advantages of being convenient to assemble and disassemble and convenient to replace, a function of pull-up type vertical inner broaching machine single key slot broaching is realized, and universality is high.

Description

technical field [0001] The invention relates to the field of single keyway processing, in particular to a device for broaching a single keyway on a pull-up vertical inner broaching machine. Background technique [0002] Flat keys are widely used in high-speed or impact-bearing and variable-load shaft connections due to their good neutrality, convenient disassembly and assembly, and high positioning accuracy. Usually, the processes for machining inner hole keyways include slotting, planing, and broaching. And wire cutting and other processes. Among them, using a horizontal broaching machine to broach a single keyway is a relatively common processing method. However, when broaching a single keyway on a horizontal broaching machine, the bottom of the keyway is often not parallel to the center line of the hole, the key width is large and small, the surface roughness of the side and bottom of the keyway is poor, and there are local scratches, and even gnaws in severe cases. Phe...

AI Technical Summary

Problems solved by technology

However, the design of the chuck of the vertical inner broaching machine can only clamp the broach with a round shank, while the handles of the single keyway broaching broaches are all rectangular shanks, so how to make the chuck of the vertical inner broaching machine clamp the rectangular shank is the most necessary solved problem

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