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TiC-based steel bonded hard alloy fine external thread milling device and numerical control milling method thereof

A steel-bonded hard alloy and milling device technology, which is applied in thread cutting tools, positioning devices, tangent devices, etc., can solve the problems of no related patents for thread milling methods, external thread structure processing, grinding wheel contour distortion, etc., and achieve effective It is conducive to rapid transmission, ensures the accuracy of thread processing, and improves the effect of surface quality

Active Publication Date: 2019-07-26
TIANJIN NAVIGATION INSTR RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main reason for this bottleneck problem is that the external thread structure cannot be processed by the conventional process route for rough and fine processing, and can only be survived by the finishing process after intensive treatment. The existing process is single-wire grinding wheel profile grinding, but Due to the high hardness of the TiC-based steel-bonded cemented carbide material at this time, the abrasive wear of the grinding wheel is serious, causing the contour distortion of the grinding wheel, and the surface quality declines rapidly. Fine dressing, and the dressing time accounts for about half of the entire grinding processing time, and the processing efficiency is very low
[0005] Through the patent search, there is no relevant patent for the thread milling method of TiC-based steel-bonded carbide material parts after strengthening treatment

Method used

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  • TiC-based steel bonded hard alloy fine external thread milling device and numerical control milling method thereof
  • TiC-based steel bonded hard alloy fine external thread milling device and numerical control milling method thereof

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Embodiment Construction

[0024] Below in conjunction with the examples, the present invention is further described, the following examples are illustrative, not limiting, and the protection scope of the present invention cannot be limited by the following examples.

[0025] A TiC-based steel-bonded hard alloy fine-tooth external thread milling device. The innovation of the present invention is that it includes a box body 1 with an opening on the upper end, the box body is filled with cooling liquid 2, and a bottom surface of the box body is installed. Fixed seat 5, a spring chuck 4 is installed on the upper end of the fixed seat, and the spring chuck is used to fix the parts to be milled. In the fixed state of the parts, the height of the upper end of the parts is lower than the height of the side wall of the box body. A milling cutter 3 is hung on the side of the part. The milling cutter adopts polycrystalline diamond coating, and the material of the milling cutter substrate adopts hard alloy.

[002...

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Abstract

The invention relates to the technical field of precise machining of a TiC -based steel bonded hard alloy, and in particular relates to a TiC-based steel bonded hard alloy fine external thread millingdevice and a numerical control milling method thereof. The milling device comprises a box body with an opening at the upper end, the box body is filled with cooling liquid, a fixing base is arrangedin the bottom surface of the box body, a spring chuck is arranged at the upper end of the fixing base, and the spring chuck is used for fixing a part to be milled; Under the fixed state of the part, the height of the upper end part of the part is lower than the height of the side wall of the box body, the side of the part is suspended with a milling cutter, the milling cutter adopts a polycrystalline diamond coating, the main cutting edge part of the milling cutter adopts a two-edge mode, and the two edges are arranged in a coplanar manner.

Description

technical field [0001] The invention relates to the technical field of TiC-based steel-bonded hard alloy precision machining, in particular to a TiC-based steel-bonded hard alloy fine-tooth external thread milling device and a numerically controlled milling method thereof. Background technique [0002] TiC-based steel-bonded cemented carbide has the high toughness, high wear resistance and high compressive strength of cemented carbide. After softening treatment (annealing), it has the machinability, forgeability and weldability of steel, which makes up for the hardness of cemented carbide. It is difficult to deform and process, so it is widely used in the fields of cutting tools, abrasive tools and aerospace. However, the material also has its own defects. After strengthening treatment (quenching and tempering), the Brinell hardness (HRC) of the material reaches above 67, which is very hard and difficult to cut. [0003] At present, the research on the conventional cutting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23G1/32B23G1/44B23Q3/06B23Q11/10
CPCB23G1/32B23G1/44B23G2225/28B23Q3/062B23Q11/1007
Inventor 陈明李金超代启超付天章王宪云郭海营刘勇于涵
Owner TIANJIN NAVIGATION INSTR RES INST
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