Involute spline broach and broaching method thereof

A technology of involute splines and spline holes, which is applied to broaches, broaching machines, metal processing equipment, etc.

Inactive Publication Date: 2011-04-13
江苏建民工具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many special involute spline holes that need to be processed with more than two different inner diameters, and the prior art involute spline broaches cannot meet the requirements at all.

Method used

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  • Involute spline broach and broaching method thereof
  • Involute spline broach and broaching method thereof
  • Involute spline broach and broaching method thereof

Examples

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Embodiment Construction

[0010] In the figure, a kind of involute spline broach of the present invention, it contains shank 1, transition cone 2, guide key 3, 5, 7, 11, cutting tooth 4, 6, 8, 9, correcting tooth 10, support Holder 12. The cutting teeth include a small inner diameter cutting tooth 4, a medium inner diameter cutting tooth 6, a large inner diameter cutting tooth 8 and a tooth-shaped cutting tooth 9, and the tooth-shaped cutting tooth 9 not only has a cutting function, but also has a guiding and positioning function. The guide key 3 on the right side of the transition cone 2 and the guide key 11 on the left side of the support portion 12 are provided with extended guide teeth. The lengthened guide key 3 on the left side of the broach is set to the right, followed by a small inner diameter cutting tooth 4, a guide key 5, a middle inner diameter cutting tooth 6, a guide key 7, a large inner diameter cutting tooth 8, and a tooth shape cutting tooth 9. Teeth 10, guide key 11, support portion...

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Abstract

The invention discloses an involute spline broach which comprises a handle, a transition cone, guiding keys, a cutting tooth, a corrected tooth, and a supporting part. The involute spline broach is characterized in that the cutting tooth comprises a small inner diameter cutting tooth, a middle inner diameter cutting tooth, a large inner diameter cutting tooth and a tooth-shaped cutting tooth, and the tooth-shape cutting tooth has the functions of cutting and guiding allocation. The guiding key on the right side of the transition cone and the guiding key on the left side of the supporting part are provided with lengthened guiding teeth. The lengthened guiding keys on the left side of the broach is rightward provided with the small inner diameter cutting tooth, the guiding key, the middle inner diameter cutting tooth, the guiding key, the large inner diameter cutting tooth, the tooth-shape cutting tooth, the corrected tooth, the guiding key, and the supporting part successively. According to the invention, three involute spline broaches with different inner diameters can be manufactured at one step, the axiality requirement of three different diameters of a workpiece to be machined and the consistency of spline tooth chamferings can be effectively ensured.

Description

technical field [0001] The invention relates to an involute spline broach and a broaching method thereof, belonging to the technical field of metal cutting tools. Background technique [0002] The structure of the prior art involute spline broach includes a neck, a transition cone, a leading part, a cutting part, a calibration part and a trailing part. The leading part is cylindrical, all the cutting teeth of the cutting part have the same inner diameter, and the trailing part is cylindrical. This involute spline broach can only process spline holes with the same inner diameter. However, there are many special involute spline holes that need to be processed with more than two different inner diameters, and the prior art involute spline broaches cannot meet the requirements at all. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an involute spline broach, which not only processes three involute spline holes with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D43/02
Inventor 王建民王年沈宗来虞华林以路
Owner 江苏建民工具有限公司
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