CN109807651A - A kind of distortion-free fixture of thin wall special-shaped comb tooth part - Google Patents
A kind of distortion-free fixture of thin wall special-shaped comb tooth part Download PDFInfo
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- CN109807651A CN109807651A CN201811512384.XA CN201811512384A CN109807651A CN 109807651 A CN109807651 A CN 109807651A CN 201811512384 A CN201811512384 A CN 201811512384A CN 109807651 A CN109807651 A CN 109807651A
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- Prior art keywords
- comb tooth
- thin wall
- special
- shaped
- tooth part
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Abstract
The invention discloses a kind of distortion-free fixtures of thin wall special-shaped comb tooth part, including part locating clip specific (1) and thin wall special-shaped comb tooth part (5), it is characterized by: thin wall special-shaped comb tooth part (5) is whole in disk form, there are five the special-shaped steps of different height on its outer profile, diameter becomes smaller the special-shaped step of five height from top to bottom, and part locating clip specific (1) is used for and what thin wall special-shaped comb tooth part (5) cooperated is two-stage circular step face and bottom plane.Support compression structure through the invention, can process inner bore of part, use this clamping and fixed form to thin wall special-shaped comb tooth part, the rigidity of part is significantly improved.
Description
Technical field
The present invention relates to the processing of Aeroengine Design field thin wall special-shaped comb tooth part, it is mainly used for changing part
Stress condition, reduce the clamping and machining deformation of part.
Background technique
In aero-engine, within the engine, comb tooth part is that thin-walled is different for the various a wide range of applications of thin wall special-shaped part
A kind of special construction of shape part.The structure of part is a thin-walled comb tooth part, 1.2 millimeters of part wall thickness thinnest part, comb tooth
0.3 millimeter of the width of cusp.In the processing of the part, part needs are machined, the processes such as Milling Machining.Part processing
Deformation certainly exist, the especially clamping deformation of part hardly results in control.
As the installation way of comb tooth accessory turning processing, processing is generally clamped using Internal hole positioning.But as comb tooth
The processing of class part, it needs to carry out Precision Machining to inner hole, and the installation way of such inner hole tensioner is infeasible.Part
As long as any one position positioned, part will deform, and the processing about this kind of part is always a difficulty of industry
Point problem.Processing for part, positioning and clamping are a projects having to carry out, and part can not in a free state
Processing, no matter which kind of sequence, the deformation of part is inevitable
Summary of the invention
The technical problem to be solved by the present invention is provide it is a kind of for controlling the fixture of thin wall special-shaped comb tooth part deformation,
Solve the deformation of special-shaped comb tooth parts fixation.By analysis part deformation the reason of, learn mainly parts fixation pressing force and
The deflection that the release of machining stress generates is maximum.Stress release and cutting force for part can be by changing processing side
It formula and eliminates stress and carries out perfect, the clamping stress of Yao Gaijin part can only improve stress deformation by changing installation way.
The technical scheme is that
A kind of distortion-free fixture of thin wall special-shaped comb tooth part, including part locating clip is specific and thin wall special-shaped comb tooth zero
Part, thin wall special-shaped comb tooth part is integrally in disk form, and there are five the special-shaped step of different height, five height on outer profile
Special-shaped step diameter becomes smaller from top to bottom, part locating clip be specifically used for and thin wall special-shaped comb tooth part cooperation be two-stage
Minimum first end face of circular step face, bottom plane and thin wall special-shaped comb tooth part cooperates, first order step it is vertical
The outer side surface cooperation of the special-shaped step of second height in face and thin wall special-shaped comb tooth part, the horizontal plane top of first order step
It is thin wall special-shaped comb tooth part third height abnormity step lower end surface, the two does not contact, the horizontal plane of second level step and the 4th
The lower end surface cooperation of the special-shaped step of height.
The specific second level step of part locating clip installs positioning pressuring plate by Top fastening screw, and it is different that positioning pressuring plate is pressed in thin-walled
The upper surface of the special-shaped step of the 5th height of shape comb tooth part.
Between the outer side surface of the special-shaped step of the second height of the vertical plane and thin wall special-shaped comb tooth part of first order step
It is clearance fit.
The beneficial effects of the present invention are: support compression structure through the invention, can process inner bore of part,
This clamping and fixed form are used to thin wall special-shaped comb tooth part, the rigidity of part is significantly improved.Part is through adding
After work, the circularity variation only 0.002~0.003 or so of benchmark inner hole.Fixture of the invention processes similar thin-walled parts
There is very high promotional value, the practical examination processed by part achieves apparent effect.It increases substantially to knife efficiency
The dimensional accuracy of manufacture product is improved with accuracy.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
With reference to the accompanying drawing and invention is described further in specific embodiment:
A kind of fixture for thin wall special-shaped comb tooth part, including part locating clip specific 1 and positioning pressuring plate 2, described zero
The upper surface of part locating clip specific 1 is annular plane, and threaded hole is distributed in edge circumferencial direction, and the positioning pressuring plate 2 is
One cylindrical concave ring body is provided with a tapped through hole thereon, and Top fastening screw 3, and the head of Top fastening screw 3 are installed in tapped through hole
For sphere, Top fastening screw 3 links together positioning pressuring plate 2 and part locating clip specific 1.
Thin wall special-shaped comb tooth part 4 is whole in disk form, there are five the special-shaped step of different height on outer profile, five
Diameter becomes smaller the special-shaped step of a height from top to bottom, and part locating clip specific 1 is used for and thin wall special-shaped comb tooth part 5 cooperates
Be two-stage circular step face and bottom plane, minimum first end face of bottom plane and thin wall special-shaped comb tooth part 5 is matched
It closes, the outer side surface cooperation of the special-shaped step of the second height of the vertical plane 4 and thin wall special-shaped comb tooth part 5 of first order step, the
It is 5 third height abnormity step lower end surface of thin wall special-shaped comb tooth part above the horizontal plane of level-one step, the two does not contact, the
The lower end surface cooperation of the horizontal plane of two stage steps and the special-shaped step of the 4th height.
Specific 1 second level step of part locating clip installs positioning pressuring plate 2 by Top fastening screw 3, and positioning pressuring plate 2 is pressed in thin
The upper surface of the special-shaped step of the 5th height of wall abnormity comb tooth part 5.
The outer side surface of the special-shaped step of second height of the vertical plane 4 of first order step and thin wall special-shaped comb tooth part 5 it
Between be clearance fit.The positioning states for guaranteeing comb tooth part are in free state.
The minimum installation diameter of the fixture pressing tight plate 2 is greater than the special-shaped stepped diameters of the 5th height of comb tooth.
Claims (3)
1. a kind of distortion-free fixture of thin wall special-shaped comb tooth part, including part locating clip specific (1) and thin wall special-shaped comb tooth zero
Part (5), it is characterised in that: thin wall special-shaped comb tooth part (5) is whole in disk form, and there are five the different of different height on outer profile
Shape step, diameter becomes smaller the special-shaped step of five height from top to bottom, and part locating clip specific (1) is used for and thin wall special-shaped comb tooth
Part (5) cooperation is two-stage circular step face and bottom plane, bottom plane and thin wall special-shaped comb tooth part (5) it is minimum
First end face cooperation, the special-shaped step of the second height of the vertical plane (4) and thin wall special-shaped comb tooth part (5) of first order step
The horizontal plane top of outer side surface cooperation, first order step is thin wall special-shaped comb tooth part (5) third height abnormity step lower end
Face, the two do not contact, the lower end surface cooperation of the horizontal plane of second level step and the special-shaped step of the 4th height.
2. the distortion-free fixture of thin wall special-shaped comb tooth part according to claim 1, it is characterised in that: part positioning fixture
Body (1) second level step is pressed in thin wall special-shaped comb tooth part by Top fastening screw (3) installation positioning pressuring plate (2), positioning pressuring plate (2)
The upper surface of the special-shaped step of (5) the 5th height.
3. the distortion-free fixture of thin wall special-shaped comb tooth part according to claim 1, it is characterised in that: first order step
It is clearance fit between the outer side surface of the special-shaped step of second height of vertical plane (4) and thin wall special-shaped comb tooth part (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811512384.XA CN109807651A (en) | 2018-12-11 | 2018-12-11 | A kind of distortion-free fixture of thin wall special-shaped comb tooth part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811512384.XA CN109807651A (en) | 2018-12-11 | 2018-12-11 | A kind of distortion-free fixture of thin wall special-shaped comb tooth part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109807651A true CN109807651A (en) | 2019-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811512384.XA Pending CN109807651A (en) | 2018-12-11 | 2018-12-11 | A kind of distortion-free fixture of thin wall special-shaped comb tooth part |
Country Status (1)
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| CN (1) | CN109807651A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110819788A (en) * | 2019-11-19 | 2020-02-21 | 中国航发贵州黎阳航空动力有限公司 | Limiting device for heat treatment of double-layer structure welding assembly and clamping method |
| CN110919287A (en) * | 2019-11-19 | 2020-03-27 | 中国航发沈阳黎明航空发动机有限责任公司 | Process method for maintaining rear shaft of high-pressure turbine |
| CN113386057A (en) * | 2021-06-29 | 2021-09-14 | 中国航发贵州黎阳航空动力有限公司 | A peening anchor clamps for thin wall baffle part |
| CN114054456A (en) * | 2021-11-15 | 2022-02-18 | 中国航发南方工业有限公司 | Protective fixture for removing coating of grate ring piece and repair process for coating on surface of grate ring piece |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110819788A (en) * | 2019-11-19 | 2020-02-21 | 中国航发贵州黎阳航空动力有限公司 | Limiting device for heat treatment of double-layer structure welding assembly and clamping method |
| CN110919287A (en) * | 2019-11-19 | 2020-03-27 | 中国航发沈阳黎明航空发动机有限责任公司 | Process method for maintaining rear shaft of high-pressure turbine |
| CN110819788B (en) * | 2019-11-19 | 2021-05-28 | 中国航发贵州黎阳航空动力有限公司 | Limiting device for heat treatment of double-layer structure welding assembly and clamping method |
| CN113386057A (en) * | 2021-06-29 | 2021-09-14 | 中国航发贵州黎阳航空动力有限公司 | A peening anchor clamps for thin wall baffle part |
| CN114054456A (en) * | 2021-11-15 | 2022-02-18 | 中国航发南方工业有限公司 | Protective fixture for removing coating of grate ring piece and repair process for coating on surface of grate ring piece |
| CN114054456B (en) * | 2021-11-15 | 2022-10-18 | 中国航发南方工业有限公司 | Protective fixture for removing coating of grate ring piece and repair process for coating on surface of grate ring piece |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190528 |
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| RJ01 | Rejection of invention patent application after publication |