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An assembled broach

An assembled and blade technology, which is applied to broaches, broaching machines, metal processing equipment, etc., can solve the problems of difficult processing of carbide broaches, avoid excessive broaching, improve service life, and improve processing The effect of precision

Active Publication Date: 2021-07-27
AECC AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the hard alloy broach is difficult to process in the prior art, the present invention provides an assembled broach, which improves the broaching quality and broaching efficiency, and also improves the service life of the broach

Method used

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  • An assembled broach
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Embodiment Construction

[0037] The present invention will be further detailed below with reference to the accompanying drawings, which is intended to be explained by the present invention.

[0038] See Figure 1-9 A assembled pull knife comprises a blade group, a blade group mounted on the top of it.

[0039] Among them, the top of the blade body 1 is provided with a positioning groove 12, and the blade group is mounted in the positioning groove 12 along the axial direction of the positioning groove 12.

[0040] The blade group includes a plurality of blades, and the plurality of blades are sequentially mounted in the positioning groove 12, each of which includes a base and a molded portion having its top, and the two ends of the base are respectively provided with the fastening portion 5, the blade passes through the fastening portion 5 Connect in the positioning groove 12.

[0041] The number of blades is 2-6.

[0042] See image 3 The sections of the positioning groove 12 are the L-shaped structure, and...

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Abstract

An assembled broach disclosed by the invention adopts a split structure, and the cutter body and the blade are processed separately, which reduces the processing difficulty of cemented carbide, improves the processing accuracy of the broach, and reduces the cost of materials; secondly, the blade The group is installed on the cutter body through the positioning groove, and a positioning key is added between the blade combination cutter body, and the axial and radial positioning of the blade group and the cutter body is realized through the positioning groove and the positioning key, which is also convenient for the installation of the blade and the cutter body Disassembly, the present invention is simple in structure, low in manufacturing cost, and convenient to use. The hard alloy profile broach structure has a very high promotional value in the broaching of the tenon and groove of the engine disk parts and the broaching of the blade tenon.

Description

Technical field [0001] The present invention relates to an air engine tool design and manufacturing technique, and is specifically a assembled pull knife. Background technique [0002] At present, the air engine whirlwind and the compressor disk slot slotted generally use high-speed steel material to process the knife, with the update of the parts material, the hardness of the parts is getting higher and higher, the existing high-speed steel material pulls the knife When drawing parts, the surface quality and size accuracy of the parts pulverization site are increasingly difficult to meet the parts process requirements. [0003] After the study, the carbide material is a good replacement material, which is verified, and the carbide pull knife single pulling life is 3 to 4 times the same high-speed steel pulling knife, the overall service life is similar high-speed steel More than 5 times more of the pull knife; the current hard alloy pull knife is mostly the coarsely open trough ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23D43/04
CPCB23D43/04
Inventor 张红霞文春锋雷再兴张恒耀林娜何花娟
Owner AECC AVIATION POWER CO LTD
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