Asynchronous stagger spinning machining method

A technology of staggered spinning and processing methods, which is applied in the field of spinning manufacturing, can solve the problems of high scrap rate and poor precision, and achieve the effects of easy flow, reduced spinning pressure, and refined metal grains

Active Publication Date: 2016-03-23
XIAN AEROSPACEMOTOR MACHINE FACTORY
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the shortcomings of poor product precision, high reject rate, and unsuitable large-scale and industrialized production of high-precision parts with a wall thickness of ±0.10mm and a diameter of ±0.15mm in the prior art, the present invention proposes an asynchronous Spinning processing method

Method used

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  • Asynchronous stagger spinning machining method

Examples

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Embodiment 1

[0033] This embodiment is a spinning machine in which each rotary wheel can be fed axially independently, and uses a two-rotary wheel asynchronous staggered pitch spinning method to process ultra-high-strength steel thin-walled cylindrical parts. The wall thickness t of the spinning blank of the cylindrical part 0 =8mm, outer diameter D=Φ312mm.

[0034] The concrete process of this embodiment is:

[0035] The first step is to install the spinning blank of the cylindrical part. The cylindrical member spinning blank 4 is installed on the spinning mandrel 5 of the spinning machine.

[0036] The second step is to adjust the angle of attack of the rotary wheel. Described rotary wheel has two, is R8 / 30 ° rotary wheel. Each rotary wheel moves to the spinning end of the cylindrical piece spinning blank, and the angle of attack of the rotary wheel is adjusted to be perpendicular to the axis of the cylindrical piece spinning blank. The axial offset between the rollers is 6-8mm, the...

Embodiment 2

[0047] This embodiment is a spinning machine in which each rotary wheel can be fed axially independently, and a three-roller asynchronous staggered pitch spinning method is used to process ultra-high-strength steel thin-walled cylindrical parts. The wall thickness t of the spinning blank of the cylindrical part 0 =10mm, outer diameter D=Φ312mm.

[0048] The concrete process of this embodiment is:

[0049] The first step is to install the spinning blank of the cylindrical part. The cylindrical member spinning blank 4 is installed on the spinning mandrel 5 of the spinning machine.

[0050] The second step is to adjust the angle of attack of the rotary wheel. Described rotary wheel has three, is R8 / 30 ° rotary wheel. Each rotary wheel moves to the spinning end of the cylindrical piece spinning blank, and the angle of attack of the rotary wheel is adjusted to be perpendicular to the axis of the cylindrical piece spinning blank. The axial offset between the rollers is 6-8mm, t...

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Abstract

The invention discloses an asynchronous stagger spinning machining method. According to the invention, the principles of tension spinning, asynchronous rolling and stagger spinning are combined, in case of positive stagger spinning, a pull force is artificially generated in a deformation area between two spinning wheels by virtue of that a feeding speed of the front spinning wheel is greater than a feeding speed of the rear spinning wheel, so as to form tension spinning, and because the feeding speeds of the front spinning wheel and the rear spinning wheel are asynchronous, the method is called as asynchronous stagger spinning. A spinning machine with spinning wheels capable of feeding independently is used for machining by means of axial stagger and different feeding speeds of the two spinning wheels or three spinning wheels during a spinning process, so as to form high-accuracy barrel-shaped spinning structure elements.

Description

technical field [0001] The invention relates to the spinning manufacturing industry, in particular, in the spinning process, two or three spinning wheels are processed with axial offsets and different feed speeds to form high-precision cylindrical spinning structural parts. Background technique [0002] With the rapid development of my country's aviation, aerospace and other high-precision manufacturing industries and the national economy, the demand for thin-walled cylindrical parts is becoming more and more urgent, and the precision requirements of parts are also getting higher and higher. For example, a Ultra-high-strength steel cylindrical parts. [0003] The material of the parts is ultra-high-strength steel, with a cylindrical structure, which has processing problems such as thin wall thickness, large aspect ratio, easy deformation, and high precision requirements. [0004] After investigation, two sets of schemes are mainly adopted for the processing of similar struct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/16
CPCB21D22/16
Inventor 曹学文写旭杨延涛牟少正罗卉方拓李楼幸磊波白瑞建杨建峰王军锋白小雷
Owner XIAN AEROSPACEMOTOR MACHINE FACTORY
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