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Device and method for machining high-speed turning multi-head large-lead deep-groove-type external threads

A processing device and processing method technology, applied in the direction of tangent device, metal processing equipment, manufacturing tools, etc., can solve the problems of low processing efficiency, immature technology, and few CNC whirl milling equipment, so as to improve surface quality and processing efficiency Effect

Active Publication Date: 2013-09-11
CHINA NUCLEAR TIANJIN TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So the processing efficiency is very low
At present, the more advanced and efficient method for processing external threads is whirling milling, but it is mainly used for whirling milling heads on ordinary lathes. There are few CNC whirling milling equipment and the technology is immature

Method used

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  • Device and method for machining high-speed turning multi-head large-lead deep-groove-type external threads
  • Device and method for machining high-speed turning multi-head large-lead deep-groove-type external threads
  • Device and method for machining high-speed turning multi-head large-lead deep-groove-type external threads

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Embodiment Construction

[0040] Hereinafter, the processing device and processing method for high-speed turning of multi-head large-lead deep groove type external thread of the present invention will be described in detail with reference to the accompanying drawings and embodiments:

[0041] Such as Figure 1~5 As shown, a processing device for high-speed turning of multi-head large-lead deep groove type external threads includes a hollow cutter body 1. The cutter body 1 is composed of a tool mounting portion 2 and a clamping portion 3, which is processed on the clamping portion 3. The square hole 4 of the clamping tool and the screw hole 5 of the fixed tool are connected to each other. The helix angle formed by the center line of the square hole 4 and the vertical is the α angle, and the degree of the α angle can be calculated according to the following formula:

[0042] tanα= Where α is the helix angle, P is the lead, and d is the pitch diameter of the thread;

[0043] The device of the prese...

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Abstract

The invention discloses a device and method for machining high-speed turning multi-head large-lead deep-groove-type external threads. The device comprises a hollow cutter body. The cutter body is composed of a cutter installation part and a clamping part. A square hole and a screw hole communicated with each other are formed in the clamping part, wherein the square hole is used for clamping a cutter and the screw hole is used for fixing the cutter. The device further comprises a tip with end teeth. The tip with the end teeth comprises a hollow tip body. A fixing screw hole is formed in one end of the tip body. A positioning circular protrusion is formed at the other end of the tip body, wherein the diameter of the positioning circular protrusion is smaller than that of the tip body. The end teeth which are evenly distributed at the circumference are formed at the portion, arranged on the periphery of the positioning circular protrusion, of the tip body. The method comprises the following steps: (i) beginning, (ii) roughly turning an external circle, (iii) roughly turning the threads, (iv) half-finely turning the threads, (v) finely turning the threads, (vi) finely turning the external circle and (vii) finishing. According to the device and method for machining the high-speed turning multi-head large-lead deep-groove-type external threads, machining efficiency and the spiral surface quality of the multi-head deep-groove-type threads are greatly improved.

Description

Technical field [0001] The invention belongs to a processing device and a processing method for external threads of parts, in particular to a processing device and a processing method for high-speed turning of multi-head large-lead deep groove type external threads. Background technique [0002] In industrial production, the machining efficiency of multi-head (more than three heads), large-lead (greater than 30mm) and deep groove (greater than 3mm) external threads is a difficult point in processing. Because the lead of the spiral groove is large, the spindle speed is high. The feed speed of cutting thread is high, and the maximum feed speed of general CNC lathes cannot meet the requirements of its high feed speed. The general spiral groove turning process is made by using a thread forming tool to cut with multiple cutters on a CNC lathe through a lower spindle speed. So the processing efficiency is very low. At present, the more advanced and efficient method for processing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23G1/02B23B1/00
Inventor 徐楠姚连波王钟起吴艳青张世军
Owner CHINA NUCLEAR TIANJIN TECH DEV
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