Numerical milling processing threaded cutter, and processing method thereof

A technology of thread cutting tools and processing methods, applied in thread cutting tools, manufacturing tools, metal processing equipment and other directions, can solve the problems of multi-tooth thread milling cutter occupying a lot of processing rooms, reducing the efficiency of tool thread processing, and reducing tool service life, etc. Achieve the effect of saving production preparation time, saving thread milling cutter costs, and saving tool costs

Active Publication Date: 2012-05-16
CHENGDU SIWI HIGH TECH IND GARDEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the multi-tooth thread milling cutter takes up a lot of processing space, and the chip removal is not smooth, which is easy to cause tool wear, reduce the service life of the tool, and also reduce the efficiency of the tool for thread processing.

Method used

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  • Numerical milling processing threaded cutter, and processing method thereof
  • Numerical milling processing threaded cutter, and processing method thereof
  • Numerical milling processing threaded cutter, and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as Figure 2 ~ Figure 4 As shown, a thread cutter for digital milling includes a milling cutter head 1, a milling cutter shaft 2 and a milling cutter handle 3 made of an integral structure. The milling cutter handle 3 is a cylindrical structure with a diameter range of Φ4 to Φ20mm. The tool handle 3 and the milling cutter head 1 are respectively arranged on the two ends of the milling cutter shank 2 , the milling cutter shank 2 is a cylindrical structure, and its diameter is smaller than that of the milling cutter shank 3 . The milling cutter head 1 comprises a rake face 1-1, a main back face 1-2, an auxiliary back face 1-4 and a tool nose angle 1-3, and the clip between the main back face 1-2 and the auxiliary back face 1-4 The angle is 29°~90°, and the center line of the included angle between the main back face 1-2 and the auxiliary back face 1-4 is perpendicular to the center line of the milling cutter bar 2. The structure formed by the main rear face 1-2 and ...

Embodiment 2

[0044] Such as Figure 5 As shown, the milling cutter shank 2 is a cone structure, its maximum diameter is smaller than the diameter of the milling cutter shank 3, and the front face 1-1 of the cutter is a horizontal or arc-shaped surface. The rest of the structure is the same as that in Embodiment 1.

[0045] In the present invention, the included angle between the main back face 1-2 and the auxiliary back face 1-4 may preferably be 30°, 45° or 60°.

[0046] A processing method for digital milling and processing thread cutters, comprising the following steps:

[0047] 1) By accurately calculating the theoretical thread height H=0.866t and the chip clearance of 0.2㎜, the tool nose angle 1-3 of the digital milling thread tool is located at the highest point of the milling cutter bar 2, and the relationship between the tool nose angle 1-3 and the milling tool bar is calculated. The distance between 2 is L=0.866×t+0.2㎜. For example, for M5×0.5-6H thread, the distance between t...

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Abstract

The invention relate to a numerical milling processing threaded cutter, and a processing method thereof. The cutter comprises a milling cutter head, a milling cutter rod and a milling cutter handle; the milling cutter handle has a cylindrical structure; the milling cutter handle and the milling cutter head are arranged at two ends of the milling cutter rod; the maximum diameter of the milling cutter rod is smaller than the diameter of the milling cutter handle; the milling cutter head comprises a front cutter surface, a main rear surface, an auxiliary rear surface and a cutter include angle; and the included angle between the main rear surface and the auxiliary rear surface is 29 to 90 degrees. The threaded cutter is a single-tooth threaded cutter, so the threaded cutter is not limited by an inherent thread pitch between teeth, and can process threads with different sizes, cut and remove chips smoothly, replace an imported cutter, and save cutter cost and preparation time of production. The method can guarantee the accuracy of the front cutter surface, the main rear surface, the auxiliary rear surface and the milling cutter rod during manufacturing of the numerical milling processing threaded cutter, so the cutter meets the thread processing requirement.

Description

[0001] technical field [0002] The invention relates to the field of thread processing tools, in particular to a digital milling thread tool suitable for thread processing and a processing method thereof. Background technique [0003] At present, there are two types of thread milling cutters, one is integral type and the other is blade type. Both thread milling cutters can process threads. Thread milling is a new process that can reduce costs well, and it can give full play to the characteristics of flexible manufacturing of digital milling. It is an effective way to replace traditional thread cutting and thread extrusion. However, if the thread milling cutter is imported from abroad, the price of an ordinary hard thread milling cutter is about 900 yuan, and it is a multi-tooth milling cutter with a fixed pitch between teeth; Tool costs. [0004] Common thread milling cutters are solid carbide thread milling cutters and rack-blade thread milling cutters, which have 5-7 t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23G5/18B23P15/36
Inventor 张冀
Owner CHENGDU SIWI HIGH TECH IND GARDEN
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