A processing method for thin-wall lock ring parts with grooves

A technology for parts processing and parts, which is applied in the field of processing parts such as grooved thin-walled lock rings, can solve the problems of high processing difficulty, part size error, and many burrs on the part surface, achieve high pass rate, reduce processing errors, and reduce processing internal stress Effect

Active Publication Date: 2021-09-07
AECC AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problems existing in the prior art, the present invention provides a processing method for thin-walled locking rings with grooves, so as to solve the difficulty in processing thin-walled locking rings with grooves in the prior art. larger technical issues

Method used

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  • A processing method for thin-wall lock ring parts with grooves
  • A processing method for thin-wall lock ring parts with grooves
  • A processing method for thin-wall lock ring parts with grooves

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Embodiment

[0044] In this embodiment, the processing process of the lock ring part at the head end of an aviation fuel nozzle is taken as an example. The lock ring part at the head end of the aviation fuel nozzle includes an annular thin-walled structure, and the end of the annular thin-walled structure is provided with a plurality of groove structures. The groove structures are arranged symmetrically.

[0045] The specific processing process is as follows:

[0046] Step 1. Select the bar as the raw material for parts processing;

[0047] Step 2. Use a precision instrument lathe or a CNC lathe to turn the outer circle of the part on the raw material, and rough boring and milling the inner hole of the part to obtain a semi-finished part;

[0048] Step 3. Assemble the semi-finished part in the part mounting hole of the grinding tank tooling, the outer circle of the semi-finished part fits with the inner wall of the part mounting hole of the grinding tank tooling, and the gap is less than ...

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Abstract

The invention discloses a method for processing parts such as thin-walled lock rings with grooves. The raw material is processed to the outer circle, and the inner hole is rough-machined, and a machining allowance is reserved for the inner hole to obtain a semi-finished part; Grinding and processing the groove structure; on the semi-finished parts with the preset groove structure, the inner hole is finished, and the thin-walled locking ring parts with grooves are produced; the present invention combines the structural characteristics of the thin-walled locking ring parts, firstly Cylindrical processing and rough machining of the inner hole, and then use the groove grinding process to realize the processing of the thin-walled groove; by processing the inner hole in two steps, the accuracy of the inner hole is improved, and at the same time, the wall thickness of the part is increased during the groove grinding process, The difficulty of the groove grinding process is reduced; the invention can obtain an accurate surface on the part, avoid the generation of large-area burrs, effectively reduce the processing error of the part, reduce the probability of fracture of thin-walled teeth, and improve the quality of the part. Simple, high pass rate.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a processing method for parts such as a thin-wall lock ring with grooves. Background technique [0002] as attached figure 1 , 2 As shown, the lock ring part at the head end of a fuel nozzle is a grooved thin-walled lock ring type part, and the end of the annular thin-walled structure is provided with a groove structure, and the part material is stainless steel; The position of parts such as cyclones and caps and the control of their circumferential rotation need to be deformed during use; most of these parts are thin-walled parts with a thickness of only 0.3-0.5mm. [0003] At present, turning and milling are mostly used to complete the forming of parts. The disadvantage is that the burrs after milling are too large to be removed, and the force in the process is too large to make the size of the parts out of tolerance; if turning and EDM are used to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 李飞席丽娜涂娇智勇李磊杨利飞刘冯涛张亚军
Owner AECC AVIATION POWER CO LTD
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