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Clamping method for machining external parts on metal shell

A technology for metal shells and external parts, applied in metal processing machinery parts, metal processing equipment, clamping, etc., can solve problems such as low production efficiency, shortened service life of fixtures, low processing rigidity and precision, and improve production efficiency , increase the damping, and improve the cutting parameters

Inactive Publication Date: 2014-04-16
XIAN AEROSPACEMOTOR MACHINE FACTORY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the low production efficiency, low processing rigidity and precision in the prior art, and shorten the service life of the fixture, the present invention proposes a clamping method for machining the upper and outer parts of the metal shell

Method used

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  • Clamping method for machining external parts on metal shell
  • Clamping method for machining external parts on metal shell
  • Clamping method for machining external parts on metal shell

Examples

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Embodiment Construction

[0036] This embodiment is a processing method for the upper and outer parts of a certain type of metal shell. The upper and outer parts of the metal shell include a cable support and a rudder base support.

[0037] The material of the metal shell is 30CrMnSiA, the total length is 3813mm, the wall thickness is 4mm, and the outer diameter of the cylinder section is Ф750mm.

[0038]There are 52 cable supports, distributed along the axial direction of the metal shell 1 on both sides of quadrant II and quadrant IV on the outer surface of the metal shell. The distance l between the two cable supports 2 located at both ends of the metal shell is 3500 mm. The upper surface of each cable support shall have a machine allowance of 5mm.

[0039] There are 24 rudder base plate supports 3, which are distributed along the circumferential direction of the metal shell on both sides of the angle bisector of quadrant I to quadrant IV on the outer surface of one end of the metal shell. The upp...

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Abstract

The invention discloses a clamping method for machining external parts on a metal shell. According to the clamping method, supporting frames are used in the process of machining the metal shell, the supporting frames and the metal shell are connected into a whole through fastening strips, and therefore the rigidity of a technology system is improved. Clamping rings which are used and provided with rubber liners can hoop the metal shell in different directions, and therefore the damping of the technology system is increased. By the adoption of the technical scheme, when the external parts on the metal shell are machined, the fluttering is obviously weakened, cutting parameters are increased, the crumbling phenomenon of a tool nose of a cutting tool is reduced substantially in the machining process, production efficiency is improved substantially, and meanwhile production cost is reduced.

Description

technical field [0001] The invention relates to the field of machining, in particular to a clamping method for machining outer parts of a metal shell. Background technique [0002] The structure of the metal shell in a certain device is complicated, and there are a large number of external parts such as cable supports and rudder base plate supports of various shapes distributed on the surface of the shell. The relevant dimensions of the external parts are mostly the dimensions of the interface with the overall assembly, and the requirements for dimension and shape and position accuracy are high. At present, most of the external parts of solid rocket motors in the production interface size are guaranteed by the welding of the external parts. After the outer part is welded, heat treatment is carried out with the shell as a whole, and the outer part itself is no longer machined. It is very rare that the outer parts are processed after the shell is welded. Moreover, the shell...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/00B23Q1/76B23C3/00
CPCB23C3/00B23C2220/605B23Q3/062B23Q2703/10
Inventor 田珍珠陈文会刘琦曲中兴郭建明杨朝亮胡世民李俊峰王常建孟纪东侯建中袁伟张锦峰侯玮赵志明张英岳彩荣闫飞宇袁牧詹西刚史宝丽张海峰
Owner XIAN AEROSPACEMOTOR MACHINE FACTORY
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