a clamping device

Abstract

The invention discloses a clamping device capable of fundamentally ensuring workpieces not to deflect due to a deflecting force and enhancing a clamping effect on workpieces with uneven surfaces. The clamping device comprises a pair of clamping plates; at least one longitudinally through V-shaped clamping groove of which the upper side wall and the lower side wall are symmetrically arranged is formed in the inner side face of each clamping plate; the upper side wall and the lower side wall of at least one end of each clamping groove are respectively provided with a plurality of clamping bulges, longitudinally arranged in parallel, of which the contour lines of the cross sections are triangular, and moreover, the clamping bulges on the upper side wall of one of the two clamping plates and the clamping bulges on the lower side wall of the other clamping plate are symmetrically arranged; top lines of all clamping bulges on the same side wall of each clamping groove are located in the same clamping plane, and moreover, an angular bisector of the vertex angle of a triangle formed by encircling the contour lines of the cross sections of all the clamping bulges is vertical to the corresponding clamping plane. The clamping device is especially suitable for clamping workpieces without planes for clamping.

Description

technical field [0001] The invention relates to a clamping device, in particular to a clamping device for clamping a plane workpiece which cannot be clamped. Background technique [0002] At present, the clamping device on the traditional band sawing machine has a relatively simple structure, and generally includes: a fixed plate fixed on the band sawing machine and a movable plate that can move relative to the fixed plate. This kind of clamping device only has a pair of clamping planes. When clamping workpieces such as round tubes and rods that have no clamping planes, there is only one gap between the round tube or rod to be clamped and the fixed plate and the movable plate. Two contact lines, in order to ensure that the clamping device has sufficient clamping force on the workpiece, the workpiece needs to have sufficient length to prevent the workpiece from being deflected due to the deflection force generated by processing, but it cannot fundamentally solve the workpiece...

AI Technical Summary

Problems solved by technology

This kind of clamping device only has a pair of clamping planes. When clamping workpieces such as round tubes and rods that have no clamping planes, there is only one gap between the round tube or rod to be clamped and the fixed plate and the movable plate. Two contact lines, in order to ensure that the clamping device has sufficient clamping force on the workpiece, the workpiece needs to have sufficient length to prevent the workpiece from being deflected due to the deflection force generated by processing, but it cannot fundamentally solve the workpiece The problem of deflection due to deflection force

In actual use, some workpieces larger than the fixed length are discarded because they cannot meet the clamping conditions, resulting in waste, reducing the utilization rate of materials, and increasing manufacturing costs

In addition, due to the uneven surface of the workpiece to be clamped, when clamping, it can only be clamped on some bumps on the surface of the workpiece to be clamped, which greatly affects the clamping effect

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