Radial plug-in type internal spline broaching clamp

Abstract

The invention discloses a radial plug-in type internal spline broaching clamp which is composed of a base, a limiting block and a bolt. The limiting block is a semicircular ring sleeve installed on one end face of the base, stabilizer blades extending out towards the outer diameter are arranged on the two sides of the opening end, the faces, facing the base, of the stabilizer blades for bolt penetration are of circular bead structures, the size of the height H of preserved circular beads is equal to the nominal dimension of the thickness of workpiece tooth parts, and deviations ranging from 0.05 mm to 0.15 mm is allowed. The radius R of a semicircular inner hole of the limiting block is larger than that of a workpiece locating shaft section by 0.1 mm to 0.2 mm, the limiting block is connected with the base through the bolt, and the workpiece radial plug-in type positioning broaching clamp structure is formed. By means of the sizing socket structure, in the workpiece plug-in process, the axial size qualitative screening effect and the workpiece surface attached impurity removing effect are achieved. as a combining face of a workpiece and the clamp is automatically cleaned before locating, the locating accuracy and machining accuracy are better improved.

Description

technical field [0001] The invention relates to a jig for machining mechanical parts, in particular to an internal spline broaching jig, in particular to a radial insertion type broaching jig for internal splines. Background technique [0002] During the broaching of ordinary workpieces, the broaching fixture usually uses the end faces of the workpieces as the axial limit reference, and the inner hole of the workpiece is coaxially matched with the broach for positioning. This kind of positioning broaching has simple structure, easy installation, high broaching efficiency, and can meet the expected precision and size requirements. However, the face-to-face positioning reference accuracy is easily affected by the cleanliness of the joint surface. As long as there are debris impurities remaining on one end surface, the positioning accuracy of the workpiece will inevitably be reduced after installation, thereby affecting the product quality of the broaching workpiece, and at lea...

AI Technical Summary

Problems solved by technology

However, the face-to-face positioning reference accuracy is easily affected by the cleanliness of the joint surface. As long as there are debris impurities remaining on one end surface, the positioning accuracy of the workpiece will inevitably be reduced after installation, thereby affecting the product quality of the broaching workpiece, and at least causing the end surface of the workpiece to be damaged. There are indentation defects, which will cause position errors of the workpiece

In addition, the broaching fixture in the prior art is freely docked with the end face of the workpiece. This structure has no limitation on the axial size of the workpiece to be broached. When using, some workpieces with excessive axial dimensions or end surface verticality can flow into the broaching without hindrance. In the cutting process, it is easy to cause unnecessary waste of materials, equipment and labor resources

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