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Spinning fixture for exhaust diffuser and working method thereof

A technology of exhaust diffuser and fixture, which is applied in the direction of manufacturing tools, metal processing equipment, feeding devices, etc. It can solve the problem that the supporting force cannot meet the requirements of parts spinning, and achieves reduced processing costs and easy assembly and disassembly , the effect of prolonging the service life

Pending Publication Date: 2019-01-01
CHINA HANGFA CHANGZHOU LANXIANG MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the supporting ring is only fixed by screws after being divided into blocks, and the supporting force generated cannot meet the requirements of parts spinning.

Method used

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  • Spinning fixture for exhaust diffuser and working method thereof
  • Spinning fixture for exhaust diffuser and working method thereof
  • Spinning fixture for exhaust diffuser and working method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as Figure 3 to Figure 6 As shown, the exhaust diffuser spinning fixture of this embodiment includes a base 3, a connecting ring 4, a support ring 5, a pressing plate 6, a spinning ring 7 and a positioning ring 9, and the base 3 includes a disc-shaped base 32 and a support A support cylinder 31, the tail end of the support cylinder 31 is fixedly connected with the end surface of the disc-shaped base 32, the outer diameter of the support cylinder 31 is adapted to the inner diameter of the thin-walled cylinder 1, and the support cylinder 31 is axially The length of the thin-walled cylinder is adapted to the axial depth of the thin-walled cylinder 1, so that when the thin-walled cylinder 1 is sleeved outside the support cylinder 31, the front end of the thin-walled cylinder 1 and the welding part 23 are placed on the support cylinder 31 The front end edge of the support cylinder 31 is provided with an inlay ring 33 threadedly connected with the support cylinder 31 alo...

Embodiment 2

[0032] The working method of the above exhaust diffuser spinning fixture specifically includes the following steps:

[0033] A. First put the welded thin-walled cylinder 1 and flange 2 into the supporting cylinder 31 of the base 3, so that the tail end of the thin-walled cylinder 1 is supported by the disc-shaped base 32, and the thin-walled cylinder 1 The welding part 23 of the front end and the flange 2 is placed on the front edge of the support cylinder 31 .

[0034] B. Put the connecting ring 4 outside the thin-walled cylinder 1 and fix the tail end of the connecting ring 4 with the disc-shaped base 32 of the base 3, so that the thin-walled cylinder 1 is placed on the connecting ring 4 and the supporting cylinder 31 in the gap between.

[0035] C. Set the support ring 5 outside the thin-walled cylinder 1 and connect the support ring 5 with the connecting ring 4 through the adjusting bolt 51, so that the folded part 21 of the flange 2 is set close to the front end of the sup...

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Abstract

The invention relates to a spinning fixture for an exhaust diffuser and a working method thereof. The spinning fixture for the exhaust diffuser includes a base, a connecting ring, a support ring, pressing plates, a spinning ring and a positioning ring. the base comprises a disc-shaped base seat and a support cylinder, and the outer diameter of the support cylinder adapts to the inner diameter of athin-walled cylinder body; the support cylinder is sleeved by the connecting ring, and the tail end of the connecting ring is fixedly connected with the disc-shaped base seat of the base; the supportcylinder is sleeved by the support ring, and the tail end of the support ring is connected with the front end of the connecting ring by an adjusting bolt; the spinning ring includes a left half ringand a right half ring that are symmetrically disposed, the left half ring / the right half ring includes an integrally formed spinning ring support part and a step part, the length of the step part in an axial direction adapts to the length of a welding part of a flanging member, and a joint of the front end surface of the annular step part and an inner ring is provided with a chamfering part adapting to a shape of a bending part; and an outer ring, which is composed of the spinning ring support parts of the left half ring and the right half ring, is sleeved by the positioning ring.

Description

technical field [0001] The invention relates to the technical field of aero-engine parts processing, in particular to a spinning fixture for an exhaust diffuser and a working method thereof. Background technique [0002] A certain type of exhaust diffuser is made of sheet metal with a thickness of 0.6 ~ 1mm, which is drawn and expanded, and then combined and welded. Since all are thin plate parts, welding deformation is difficult to control. During the trial production process, many problems were encountered, among which the spinning forming of parts is a difficult point. Therefore, the requirements for the tooling are very high, and the tooling is required to have sufficient support. Such as figure 1 and figure 2 As shown, the part is composed of a thin-walled cylinder 1 and a flange 2; the flange 2 successively includes a welding part 23 that closely fits with the outer wall of the front end of the thin-walled cylinder 1, and a gap is left between the outer wall of the...

Claims

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Application Information

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IPC IPC(8): B21D43/00B21D22/14
CPCB21D35/002B21D19/08B21D22/16B21D37/04B21D37/14Y02T10/12
Inventor 涂祖德李军
Owner CHINA HANGFA CHANGZHOU LANXIANG MACHINERY CO LTD
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