Thin-wall sleeve part processing method

A processing method and thin-wall sleeve technology, applied in the field of parts machining, can solve the problems of increasing the rigidity of the parts, out of tolerance of the outer circle ellipse of the parts, low qualification rate, etc., and achieve the effect of reducing deformation, short production cycle and improving rigidity

Inactive Publication Date: 2020-02-07
AECC AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problems existing in the prior art, the present invention provides a processing method for thin-walled sleeve parts, by reducing the chuck pressure of the hydraulic system of the machine tool, changing the clamping method, improving the tool, changing the

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Embodiment

[0038] The processing steps of an aeroengine steel sleeve using the method of the present invention are as follows:

[0039] (1) Clamp the outer circle of the bar with three jaws on an ordinary lathe for rough turning,

[0040] (11) Turning the end face, rough turning the outer circle, drilling and boring the inner hole, such as image 3 Shown in b; outer circle according to size Inner hole according to size In step (1), the inner hole size is reduced from the original Φ40 to Φ35, such as image 3 a and image 3 As shown in b, in step 1, the semi-finished outer circle can eliminate the deformation of the part caused by the uneven clamping force generated by the three-jaw clamping the outer circle of the wool; the purpose of reducing the size of the rough boring inner hole is to increase the rigidity of the part and reduce The part is deformed.

[0041] (12) Cut the semi-finished parts from the bar stock, the total length of the semi-finished parts is 120±2mm;

[0042] (2) The semi-f...

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Abstract

The invention discloses a thin-wall sleeve part processing method which comprises the steps of firstly roughly turning an excircle and drilling and boring an inner hole; after roughly turning the excircle and roughly boring the inner hole to the reserved processing allowance, semi-extractive turning an excircle of a thin-wall sleeve part, obtaining a semi-finished product of the thin-wall sleeve part, and cutting off from a bar material; loading the semi-finished product on a digital controlled lathe, precisely turning an incircle and an excircle of the semi-finished product to the set processing allowance, half cutting-off, reserving the set thickness during half cutting-off after chamfering an excircle of a part at the cut-off end, and semi-extractive turning the excircle to the design dimension again; and thoroughly cutting off the processed thin-wall sleeve part from the semi-finished product. The process method provided by the invention is simple and feasible, no working procedureis increased, the deformation in the part processing process is greatly reduced, the excircle dimension tolerance can be ensured to meet the technical requirement of the process design, the product qualification rate is remarkably improved, the method can be completed by adopting a cutting manner, the production period is short, and no auxiliary fixture with high cost is required to be configured.

Description

Technical field [0001] The invention belongs to the field of parts machining, and in particular relates to a method for processing thin-walled sleeve parts. Background technique [0002] There is a kind of sleeve parts, such as figure 1 As shown, it is installed on a certain low-pressure oil filter tube assembly, and its outer circle shape accuracy plays a key role in the sealing performance of the assembly in the kerosene sealing performance test with a passing pressure of 1.9MPa. [0003] For the sleeve parts on the tube assembly with special performance requirements, the wall thickness is 1.6~1.9mm, the outer circle tolerance is 0.015~0.025mm, and the diameter is Φ40~Φ60mm. The original processing plan is: the first step: in the ordinary Rough drilling and cutting of the bar wool on the lathe, such as figure 2 As shown; the second step: perform precision turning on the rough-machined parts on a precision CNC lathe, turning the outer circle, turning groove, and boring the inner ...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 张玉环周晓卫王旭科秦会群穆谦辛飞吴春利魏正军
Owner AECC AVIATION POWER CO LTD
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