CN102513449B - Horizontal lead angle bend correcting mold for large-calibre U-shaped tube - Google Patents
Horizontal lead angle bend correcting mold for large-calibre U-shaped tube Download PDFInfo
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- CN102513449B CN102513449B CN201110428158.5A CN201110428158A CN102513449B CN 102513449 B CN102513449 B CN 102513449B CN 201110428158 A CN201110428158 A CN 201110428158A CN 102513449 B CN102513449 B CN 102513449B
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- mold
- lead angle
- horizontal lead
- calibre
- pressure head
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Abstract
The invention provides a horizontal lead angle bend correcting mold for a large-calibre U-shaped tube. Structurally, an extending box is arranged on a mold base, a reverse direction pressing plate is installed on the mold base, an arc-shaped sizing block is installed on the upper surface of the mold base, and a wedge is installed on the upper portion of the arc-shaped sizing block opposite to a mold cavity. An upper pressing plate is connected onto the upper portion of the wedge, and the upper pressing plate and the wedge form a lower mold. An adjusting gasket is arranged on the lower portion of a hydraulic cylinder, the adjusting gasket is connected and fixed with a twisting lug through a bolt, and a pressing head is installed on the twisting lug in limiting mode through a shaft so as to form a movable pressing head. A pipe is pressed through the mold after being formed by bending a normal mold, correction of the horizontal lead angle is achieved, and dimension tolerance of the horizontal lead angle of the pipe fitting can be effectively ensured. The horizontal lead angle bent correcting mold is suitable for use in manufacture of large-calibre U-shaped tubes.
Description
Technical field
What the present invention proposed is the curved school of the mechanical manufacturing field horizontal lift angle of applied a kind of heavy caliber U-shaped pipe mould.
Background technology
At present, heavy wall large-diameter steel pipe uses hydraulic press and conventional mould in perpendicular, to realize the variation of angle conventionally.Because U-shaped pipe fitting is realized lift angle, need to offset multi-direction plastic deformation resistance, and be subject to the restriction of moulding angle tolerance, utilize traditional method to be difficult to control its variable quantity.In addition, utilize single mold to realize the variation of horizontal lift angle, the body damage to pipe fitting in forming process is also very large.
Summary of the invention
Bend the shortcoming of mould that process is used in order to overcome the horizontal lift angle of existing heavy caliber U-shaped pipe, the present invention proposes the curved school of the horizontal lift angle of a kind of heavy caliber U-shaped pipe mould.This mould interacts by counterdie and movable pressure head, solves the technical problem that bends and proofread and correct of the horizontal lift angle of heavy caliber U-shaped pipe.
The scheme that technical solution problem of the present invention adopts is:
Curved school mould structure: be provided with on mold base and extend case and pressing plate is in the other direction installed, arc parallels is housed on mold base, on the top of the relative die cavity of arc parallels, drift is housed; Drift top is connected with top board, and top board and drift form counterdie; Bottom at hydraulic cylinder is lined with adjusting pad, and adjusting pad is connected and fixed by bolt and strand ear seat, on strand ear seat, has pressure head, formation activity pressure head by axle limit mounting.
Good effect, U-shaped pipe fitting bends after moulding at common die, suppresses by mould of the present invention, realizes the rectification of horizontal lift angle, and can effectively ensure the dimensional tolerance of the horizontal lift angle of pipe fitting.Suitable horizontal lift angle curved school use in heavy caliber U-shaped pipe manufacturer process.
Brief description of the drawings
Fig. 1 is die structure dwg of the present invention
Fig. 2 is die side view of the present invention
In figure, 1. adjusting pad, 2. bolt, 3. strand ear seat, the movable pressure head of 3.0., 4. axle, 5. pressure head, 6. top board, 6.0. counterdie, 7. extends case, 8. drift, 9. arc parallels, 10. lower platen, 11. opposite direction pressing plates.
Detailed description of the invention
The curved school of the horizontal lift angle of heavy caliber U-shaped pipe mould structure: according to the figure, be provided with on mold base and extend case 7 and pressing plate 11 is in the other direction installed, arc parallels 9 is housed on mold base, on the top of the relative die cavity of arc parallels, drift 8 is housed; Drift top is connected with top board 6, and top board and drift form counterdie 6.0; Be lined with adjusting pad 1 in the bottom of hydraulic cylinder, adjusting pad is connected and fixed by bolt 2 and strand ear seat 3, on strand ear seat, has pressure head 5, formation activity pressure head 3.0 by axle 4 limit mounting.
In figure, dotted portion is pressed U-shaped pipe position.
Described prolongation case can move according to the length of U-shaped pipe on mold base, to adapt to U-shaped length of tube position.
Described opposite direction pressing plate can increase the space of proofreading and correct the horizontal lift angle of U-shaped pipe.
The use procedure of the curved school of the horizontal lift angle of heavy caliber U-shaped pipe mould:
1, movable pressure head is fixed on the head of press, as the output of pressure;
2, utilize arc parallels and drift that U-shaped pipe is fixed on lower platen;
3, adjust the compacting center of U-shaped pipe and the center superposition of movable pressure head, and the cambered surface pressure surface complete and pipe fitting of pressure head is fitted;
4, set precompressed angle, by twice precompressed of movable pressure head, calculate after rebound amount, repeatedly the lift angle of curved school U-shaped pipe.
Heavy caliber U-shaped pipe bends after moulding at common die, can realize the rectification of horizontal lift angle by the curved school of the horizontal lift angle of heavy caliber U-shaped pipe mould, and can effectively ensure the dimensional tolerance of the horizontal lift angle of pipe fitting.
Embodiment
While utilizing mould of the present invention to manufacture AP1000 main nuclear power pipeline fluctuation pipe, horizontal lift angle is carried out to curved school.
1, pressure head and strand ear seat connect to form movable pressure head by axle, and are bolted on press telescopic head, and as the output of pressure, pressure head can freely rotate around axle.
2, utilize arc parallels and drift that U-shaped pipe is fixed on lower platen.
3, adjust the compacting center of pipe fitting and the center superposition of movable pressure head, and the cambered surface pressure surface complete and pipe fitting of movable pressure head is fitted.
4, the movable pressure head being connected with press telescopic head presses down pipe fitting, and in the shape process of school, movable pressure head sways, and changes with the angle of U-shaped pipe.
5, set precompressed angle, by twice precompressed, calculate rebound amount, and be depressed into final angle.
6, the activity pressure head of appearing on the stage, removes drift, completes the school shape of the horizontal lift angle of U-shaped pipe.
Claims (1)
1. the curved school of the horizontal lift angle of a heavy caliber U-shaped pipe mould, it is characterized in that: mould structure: on mold base, be provided with and extend case (7) and pressing plate (11) is in the other direction installed, arc parallels (9) is housed on mold base, on the top of the relative die cavity of arc parallels, drift (8) is housed; Drift top is connected with top board (6), and top board and drift form counterdie (6.0); Be lined with adjusting pad (1) in the bottom of hydraulic cylinder, adjusting pad is connected and fixed by bolt (2) and strand ear seat (3), on strand ear seat, has pressure head (5), formation activity pressure head (3.0) by axle (4) limit mounting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110428158.5A CN102513449B (en) | 2011-12-20 | 2011-12-20 | Horizontal lead angle bend correcting mold for large-calibre U-shaped tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110428158.5A CN102513449B (en) | 2011-12-20 | 2011-12-20 | Horizontal lead angle bend correcting mold for large-calibre U-shaped tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102513449A CN102513449A (en) | 2012-06-27 |
| CN102513449B true CN102513449B (en) | 2014-08-06 |
Family
ID=46284659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110428158.5A Active CN102513449B (en) | 2011-12-20 | 2011-12-20 | Horizontal lead angle bend correcting mold for large-calibre U-shaped tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102513449B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723123B (en) * | 2018-06-02 | 2020-01-31 | 北京海月创新科技有限公司 | stainless steel U-shaped pipe outer diameter roundness correction device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3688542A (en) * | 1971-03-03 | 1972-09-05 | United States Steel Corp | Device for adjustably supporting a rod guide tube |
| RU2186646C2 (en) * | 2000-06-02 | 2002-08-10 | Открытое акционерное общество "УралЛУКтрубмаш" | Apparatus for straightening tubes |
| CN201249239Y (en) * | 2008-08-15 | 2009-06-03 | 宝山钢铁股份有限公司 | Drilling rod pressure straightening die |
| CN201300180Y (en) * | 2008-09-03 | 2009-09-02 | 上海中船三井造船柴油机有限公司 | Wire rope straightener |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0767588B2 (en) * | 1991-06-13 | 1995-07-26 | 松山産業株式会社 | Metal processing method for automobile headrest |
| JP2501983B2 (en) * | 1991-09-30 | 1996-05-29 | 昭和アルミニウム株式会社 | Bending correction method for thin-walled drawn tubes for precision equipment |
-
2011
- 2011-12-20 CN CN201110428158.5A patent/CN102513449B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3688542A (en) * | 1971-03-03 | 1972-09-05 | United States Steel Corp | Device for adjustably supporting a rod guide tube |
| RU2186646C2 (en) * | 2000-06-02 | 2002-08-10 | Открытое акционерное общество "УралЛУКтрубмаш" | Apparatus for straightening tubes |
| CN201249239Y (en) * | 2008-08-15 | 2009-06-03 | 宝山钢铁股份有限公司 | Drilling rod pressure straightening die |
| CN201300180Y (en) * | 2008-09-03 | 2009-09-02 | 上海中船三井造船柴油机有限公司 | Wire rope straightener |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102513449A (en) | 2012-06-27 |
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