Spring compression type shaft workpiece tool clamp

Abstract

The invention discloses a spring compression type shaft workpiece tool clamp. The spring compression type shaft workpiece tool clamp comprises a U-shaped base and a power box, and further comprises a compression spring used for driving a V-shaped compression head and a V-shaped groove pad table to compress a workpiece in a matched manner; the U-shaped base is sequentially and fixedly provided with the power box and an L-shaped push rod support, a cam is fixedly installed on a power output shaft of the power box, and a push rod is installed on the left side wall of the U-shaped base and the L-shaped push rod support in a sliding manner; a roller support is fixedly installed on the push rod and rotationally provided with a roller matched with the cam, a V-shaped compression head is fixedly installed at the end of the push rod, and the compression spring is arranged between the V-shaped compression head and the L-shaped push rod support; and the V-shaped groove pad table is fixedly installed on the right side wall of the U-shaped base. The spring compression type shaft workpiece tool clamp has the beneficial effects of being reasonable in design, high in automation degree, easy and convenient to operate, low in labor intensity, wide in application scope and long in service life.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and relates to a compression fixture, in particular to a cam-driven compression fixture for machining shaft workpieces. Background technique [0002] At present, in the machining process of shaft workpieces, the most commonly used clamping tool is a three-jaw chuck because the outer contour of the shaft workpiece has a certain radian. The three-jaw chuck is composed of a chuck body, movable jaws and jaw driving mechanism. Under the guide part of the three claws on the three-jaw chuck, there are threads that mesh with the plane threads on the back of the bevel gear. When the small bevel gear is turned with a wrench through the square hole, the bevel gear rotates, and the plane threads on the back simultaneously Drive the three jaws to approach or withdraw from the center to clamp workpieces with different diameters. However, if the three-jaw chuck is used for a long time, the chuck ...

AI Technical Summary

Problems solved by technology

Under the guide part of the three claws on the three-jaw chuck, there are threads that mesh with the plane threads on the back of the bevel gear. When the small bevel gear is turned with a wrench through the square hole, the bevel gear rotates, and the plane threads on the back simultaneously Drive the three jaws to approach or withdraw from the center to clamp workpieces with different diameters. However, if the three-jaw chuck is used for a long time, the chuck will wear out, and the three jaws will also appear bell-mouthed, making the three jaws deviate from the chuck. In addition, when using the three-jaw chuck, the operator must manually clamp the workpiece, which cannot be done automatically. The operator has high labor intensity, low degree of automation, and low production efficiency.

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