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Dual-wire contact collet jaws

A chuck jaw, line contact technology, applied in the field of chuck parts, can solve the problems of affecting the clamping and positioning accuracy of the chuck jaws, unfavorable for the normal operation of the chuck, and insufficient contact strength, so as to improve the contact strength and the clamping force. Maintain positioning accuracy, share contact stress, and reduce contact stress

Active Publication Date: 2017-09-12
金华市臣星科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many types of existing collets, which are widely used in the tool industry, but the side conical surface of the collet jaws equipped with the existing collets is a single conical surface. When the three collets evenly distributed in the collet shell When the jaws clamp the workpiece with the smallest diameter, the conical surface on the side of the jaws and the inner conical surface of the chuck shell are completely attached, and the contact area is the largest. It is only a single-line contact, the contact strength is not high enough, and it affects the clamping positioning accuracy of the jaws of the chuck, which is prone to eccentricity, which is not conducive to the normal operation of the chuck

Method used

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Embodiment approach

[0012] like figure 1 , figure 2 As shown, a double-line contact chuck jaw is characterized in that: the side cone surface of the chuck jaw 1 is composed of three sections of conical surfaces, forming two splicing lines, wherein the conical surfaces on both sides are the same, The conical surface in the middle section is relatively large. When the three double-line contact chuck jaws installed in the chuck shell 2 are evenly distributed to clamp the work piece with the smallest diameter, the conical surfaces on both sides are completely consistent with the inner conical surface of the chuck shell 2. Fitting, when the workpiece with the largest diameter is clamped, the conical surface in the middle of it is completely attached to the inner conical surface of the chuck shell 2. When the workpiece with a diameter in the middle range is clamped, the two splicing lines and the chuck The inner conical surface of the housing forms a two-line contact.

[0013] Working process of the...

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Abstract

The invention belongs to chucks, and particularly relates to a dual-line contact chuck clamping jaw. The dual-line contact chuck clamping jaw is characterized in that a lateral conical surface is formed by splicing three sections of conical surfaces, and two spliced lines are formed, wherein the conical surfaces located on the two sides are the same, and the conical surface located in the middle section is larger. When a work piece with the minimum diameter or the maximum diameter is clamped by three dual-line contact chuck clamping jaws evenly distributed in a chuck outer shell, the lateral conical surface and the conical surface in the chuck outer shell are in a face contact, so that the contact stress is small, and the clamping accuracy is high; and when a work piece with the diameter in the middle range is clamped, the two splicing lines and the inner conical surface of the chuck outer shell are in dual-line contact, so that the contact stress is effectively shared, and the contact intensity and the clamping positioning accuracy are improved.

Description

technical field [0001] The invention belongs to chuck parts, in particular to a double-wire contact chuck claw. Background technique [0002] There are many types of existing collets, which are widely used in the tool industry, but the side cone surface of the collet jaws equipped with the existing collets is a single conical surface. When the three collets evenly distributed in the collet shell When the jaws clamp the workpiece with the smallest diameter, the conical surface on the side of the jaws is in perfect contact with the inner conical surface of the chuck shell, and the contact area is the largest. It is only a single-line contact, the contact strength is not high enough, and it affects the clamping positioning accuracy of the jaws of the chuck, and it is easy to produce eccentricity, which is not conducive to the normal operation of the chuck. Contents of the invention [0003] The object of the present invention is to provide a double-wire contact collet jaw to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q3/00
CPCB23Q3/00B25B11/00
Inventor 陈坚
Owner 金华市臣星科技有限公司
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