Clamp head and processing process of clamp head

Abstract

The invention relates to a clamp head, which comprises a clamp head body, wherein the clamp head body is provided with an inner hole in the axial direction. The clamp head is characterized in that the part of the inner hole positioned at the front end of the clamp head body is also fixed and embedded with a hard alloy sleeve pipe, and the hard alloy sleeve pipe is provided with a pipe hole for a workpiece to penetrate in a rotating way. The clamp head has the advantages that the hard alloy sleeve pipe is fixedly arranged in the inner hole of the clamp head, the abrasion of the inner hole of the clamp head in the processing process is reduced, and the abrasion performance of the clamp head is improved; the head part of the clamp head adopts the uniform equant structure, so the head part of the clamp head has a certain elasticity, and tight locking caused by tight workpiece clamping is prevented; and the clamp head adopts the novel processing process, the uniformity of the clamp head material can be ensured, the deformation of the clamp head is reduced, the concentricity and the roughness of the clamp head are improved, in addition, the cost of the whole process flow is low, the realization is easy, and the quality of the clamp head obtained through processing is good, so the workpiece processed through the fixation of the clamp head is enabled to have higher precision and better quality.

Description

technical field [0001] The invention relates to a collet and the processing technology of the collet. Background technique [0002] Under the action of cutting force, the slender precision workpiece is prone to large bending deformation, which will affect the machining accuracy and increase the difficulty of machining the workpiece. In order to eliminate the above unfavorable factors and reduce the force deformation of such slender workpieces during the cutting process, a chuck will be installed and fixed in the middle of the bed of the machine tool or in front of the headstock, such as figure 1 As shown, this type of collet is mainly used for processing slender precision workpieces. The collet includes a body 1' and a shaft hole 11' along the axial direction of the body 1', and the workpiece is passed through the shaft hole 11' of the collet. , the collet plays a role in supporting the slender workpiece, and can be used to directly bear the cutting force during processing....

AI Technical Summary

Problems solved by technology

At present, the workpiece in the prior art is directly inserted into the shaft hole of the collet, and the workpiece to be processed rotates in the inner hole of the collet, and the workpiece and the collet are in direct contact, and friction will be generated between the two. The roughness of the inner hole of the chuck is low, and it is easy to wear, which will eventually cause poor concentricity between the workpiece and the shaft hole of the chuck, and reduce the precision of the processed workpiece

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