Clamping device for hot straightening of round bars

Abstract

The invention provides a clamping device for hot straightening of round bars, and belongs to the technical field of process equipment. The clamping device guarantees that left and right sliding blockscan slide back and forth along guide chutes under the action of the two guide chutes with an included angle beta on a base and a cover plate and convex guide rails on the left and right sliding blocks; the left and right sliding blocks tightly bite the round bars through sawteeth; the round bars tend to slide forwards in the axial direction when being pulled, the left and right sliding blocks bear the pulling force at the same time and generate force of sliding forwards and contracting towards the middle, the clamping force of the left and right sliding blocks is increased, and clamping of the bars is always in a reliable and stable state, so that the problem that in the straightening process, the bars become thin, loosen from the clamping device, slip off and elastically deform to threaten the safety of field workers is solved; and the clamping device is simple in structure, easy to manufacture and small in number of components.

Description

technical field [0001] The invention belongs to the technical field of process equipment, and in particular relates to a clamping device used for thermal straightening of round bars. Background technique [0002] During the processing of hot-rolled round titanium rods, the coils need to be straightened. For example, a hot-rolled titanium (TC4) rod with a diameter of Φ15mm in production needs to be straightened from a disc shape to a length of about 2 meters. direct material. The straightening method currently used is to clamp both ends of the round titanium bar and apply axial tension. The bar is straightened, then the heating of the bar is stopped, and the bar is cooled and shaped naturally, then the straightened bar can be removed. [0003] The existing bar stock straightening and clamping device is to apply a radial clamping force to the bar stock with a screw mechanism to clamp the bar stock. When the clamping device uses a screw mechanism to apply radial force, the o...

AI Technical Summary

Problems solved by technology

When the clamping device uses a screw mechanism to apply radial force, the operation is cumbersome and the efficiency is low. When the bar is straightened, the radial clamping force is constant. Loose and slipping, elastic deformation of bars after slipping, posing a threat to the safety of on-site workers

[0004] In order to solve the above cumbersome operations, low efficiency and potential safety hazards in production, it is necessary to propose improvements

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