Clamping tool for workpiece shot blasting strengthening test piece

Abstract

The clamping tool comprises a clamping tool for a workpiece shot blasting strengthening test piece. The tool comprises a fixing support, two bottom plates with the adjustable distance are installed onthe fixing support, bottom test piece clamps are installed on the two bottom plates, bottom test piece installation faces of the two bottom test piece clamps are coplanar, wide edges of the two bottom test piece clamps are parallel, and the long edges of the two bottom test piece clamps are collinear. Side plates are mounted on the two sides of each bottom plate in an included angle adjustable manner; and each side plate is provided with a side test piece clamp capable of adjusting the distance relative to the corresponding bottom test piece clamp, and when the included angle between each bottom plate and the side plates on the two sides of the bottom plate is 180 degrees, side test piece installation faces on the side test piece clamps are coplanar with the bottom test piece installationfaces, and the side test piece clamps are coplanar with the wide edges of the bottom test piece clamps, and parallel to the long edges of the bottom test piece clamps. The problem that the surfaces of workpieces in different shapes are perpendicular to the spraying angle is effectively solved, and the shot blasting strength measurement accuracy of the sprayed surfaces of the workpieces in the process execution process is ensured.

Description

technical field [0001] The invention relates to the technical field of shot peening, and more specifically relates to a clamping tool for a workpiece shot peening test piece. Background technique [0002] As a strengthening technology of surface modification, shot peening is widely used in the manufacture of key parts. Shot peening of the gear surface mainly relies on the impact of high-speed projectiles on the surface of the part, causing it to undergo elastic and plastic deformation, thereby producing favorable changes such as residual compressive stress, work hardening and microstructure refinement, so as to improve the bending fatigue strength of the gear. And contact fatigue strength is to improve the anti-seizing ability of gears and increase the service life of gears. [0003] In the shot peening process and acceptance criteria, the shot material, shot diameter, shot velocity, shot flow, shot angle, shot distance, shot peening time and coverage are clearly specified,...

AI Technical Summary

Problems solved by technology

[0004] However, due to the high hardness of the projectile and the fast spraying speed, in order to prevent the shot from damaging the sprayed surface, the surface to be sprayed is required to be close to the vertical direction of the spraying direction. General tooling cannot simulate the spraying state of the tooth surface, nor can it be adjusted according to the pressure angle of the workpiece. different, and change the angle of the test piece, so that the shot peening intensity at the tooth surface and tooth root cannot be accurately measured or cannot be accurately measured during the process execution

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