CN112620409B - Orthopedic process for rectangular corrugated pipe - Google Patents
Orthopedic process for rectangular corrugated pipe Download PDFInfo
- Publication number
- CN112620409B CN112620409B CN202011605587.0A CN202011605587A CN112620409B CN 112620409 B CN112620409 B CN 112620409B CN 202011605587 A CN202011605587 A CN 202011605587A CN 112620409 B CN112620409 B CN 112620409B
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- corrugated pipe
- wheel
- driving wheel
- driving
- distance
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- 230000000399 orthopedic effect Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004904 shortening Methods 0.000 claims abstract description 8
- 230000007704 transition Effects 0.000 claims description 13
- 238000001125 extrusion Methods 0.000 claims description 8
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/16—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts of specific articles made from metal rods, tubes, or profiles, e.g. crankshafts, by specially adapted methods or means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
An orthopedic process for a rectangular bellows, comprising the steps of: (1) upper tube blank; (2) combining the driving wheel and the driven wheel; (3) locating an initial orthopedic position; (4) orthopedic fillets; (5) inverting the orthopedic fillet; (6) Repeating (4) - (5) for a plurality of times until the total shortening amount of the distances between the master wheel and the slave wheel reaches a preset value; (7) orthopedic straight edges; (8) Repeating the steps (4) - (7) until the correction of all straight edges and round corners is completed; (9) final sequential reshaping. The purpose that the clamping wheel phenomenon can not occur due to high corner hardness in the process of correcting the corrugated pipe is achieved, and the final obtained corrugated pipe wave distance and wave height can keep higher uniformity is achieved.
Description
Technical Field
The invention relates to a pipe fitting correction process, in particular to a rectangular corrugated pipe correction process.
Background
For the integral bulging of the multi-layer rectangular corrugated pipe, only one and round corner feature is required for each layer of longitudinal welding seam, after the mechanical integral bulging is completed, bending folds are formed in the transition and end straight-edge section areas, the waveform small round corners of the end are not obvious, and secondary correction is required. The end wave rounded corners are shaped. The existing orthopedic process is characterized in that sequential orthopedic is performed, and extrusion corrugated pipes between driving wheels and driven wheels are used for extrusion molding in sequence, so that the wave heights of round corners and straight sides are greatly different after the orthopedic.
Disclosure of Invention
In order to solve the problems, the invention provides the following scheme:
an orthopedic process for a rectangular bellows, comprising the steps of:
(1) The pipe blank is put on, sleeve blocks of a driving shaft and a driven shaft are removed, the pipe blank is lifted into the space between a driving wheel and a driven wheel, and the space between the driving wheel and the space between the driven wheels are adjusted;
(2) Combining the driving wheel and the driven wheel, pushing up the sleeve blocks, adjusting the intervals between the driving wheels and the driven wheel, respectively inserting the driving wheel and the driven wheel into wave cavities of the corrugated pipe, combining the driving wheel and the driven wheel, and keeping the corrugated pipe fixed under extrusion force;
(3) Positioning an initial orthopedic position, slowly rotating the driving wheel, and forcing the rectangular corrugated pipe to slide to a transition area between the round angle and one side straight edge along the outline boundary of the rectangular corrugated pipe to stop;
(4) The round angle is shaped, the distance between the driving wheel axle and the driven wheel axle is shortened, the driving wheel is slowly rotated, the corrugated pipe is forced to slide and rotate, and the pipe blank is rotated until the driving wheel and the driven wheel clamp the other transition section area of the same round angle;
(5) Reversing the orthopedic fillet, continuously shortening the distance between the driving wheels and the distance between the driven wheels, slowly reversely rotating the driving wheels, forcing the corrugated pipe to reversely rotate, and returning to the initial transition area;
(6) Repeating (4) - (5) for a plurality of times until the total shortening amount of the intervals between the driving wheels and the driven wheels reaches a preset value;
(7) After the correction of one of the round corners is finished, the distance between the driving wheels and the distance between the driven wheels are increased, then the sequential straight-edge extrusion is carried out, the driving wheels are slowly rotated, and the corrugated pipe is forced to slide along the straight-edge appearance until reaching the transition area of the next round corner;
(8) Repeating steps (4) - (7) until all straight sides and rounded corners are shaped;
(9) And finally, sequentially correcting, namely reducing the distance between the driving wheel shaft and the driven wheel shaft, slowly rotating the driving wheel according to the appearance sequence, after forcing the corrugated pipe to finish one circle of sliding, measuring the wave height and the wave distance of the corrugated pipe, ensuring that the wave height reaches the design requirement, and if the wave distance is lower than the design value by 2-3mm, repeating the step 9 until stopping correcting after reaching, and taking down the pipe blank to finish the whole correcting process.
Further, when the pipe blank is arranged, the distance between the driving wheels and the distance between the driven wheels are larger than the wave height of the corrugated pipe by 5mm.
Further, when the fillet is shaped, the distance between the driving wheels and the distance between the driven wheels are shortened by 2-3mm, and when the fillet is shaped in a reverse way, the distance between the driving wheels and the distance between the driven wheels are continuously shortened by 2-3mm; repeatedly correcting the round corners and reversing the round corners until the total shortening amount of the distance between the driving wheel and the driven wheel reaches 7-9mm.
Further, when the straight edge is corrected, the distance between the driving wheel and the driven wheel is increased by 5mm.
Further, when the final sequence is orthopedic, the distance between the driving wheel and the driven wheel is reduced by 1mm.
The invention has the beneficial effects that:
1. the corrugated pipe can not be clamped due to high rigidity of the corner in the orthopedic process.
2. The final obtained corrugated pipe wave distance and wave height can keep higher uniformity.
Drawings
FIG. 1 is an orthopedic side view of a bellows;
figure 2 is a schematic view of an orthopedic cross-sectional structure of a bellows.
In the figure: 1. a driving wheel; 2. driven wheel; 3. a tube blank; 4. driven wheel axle; 5. a driving wheel axle; 6. the distance between the driving wheel axle and the driven wheel axle; 7. spacing between driving wheels or between driven wheels.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present application more apparent. In the following description, certain specific details are set forth in order to provide a thorough understanding of the invention. While the invention may be practiced without these specific details, those skilled in the art will be able to more effectively introduce their operational nature to other persons of ordinary skill in the art that use the descriptions and representations herein. Furthermore, it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the present application. All of the starting materials used in the examples below were commercially available.
Example 1
An orthopedic process for a rectangular bellows, comprising the steps of:
(1) The pipe blank is put on, sleeve blocks of a driving shaft and a driven shaft are removed, the pipe blank is lifted between a driving wheel and a driven wheel, and the intervals between the driving wheel and the driven wheel are adjusted to be larger than the wave height of the corrugated pipe by 5mm;
(2) Combining the driving wheel and the driven wheel, pushing up the sleeve blocks, adjusting the intervals between the driving wheels and the driven wheel, respectively inserting the driving wheel and the driven wheel into wave cavities of the corrugated pipe, combining the driving wheel and the driven wheel, and keeping the corrugated pipe fixed under extrusion force;
(3) Positioning an initial orthopedic position, slowly rotating the driving wheel, and forcing the rectangular corrugated pipe to slide to a transition area between the round angle and one side straight edge along the outline boundary of the rectangular corrugated pipe to stop;
(4) The round corners are shaped, the distance between the driving wheels and the distance between the driven wheels are shortened by 2-3mm, the driving wheels are slowly rotated, the corrugated pipe is forced to slide and rotate, and the pipe blank rotates until the driving wheels and the driven wheels clamp the other transition section area of the same round corner;
(5) Reversing the orthopedic fillet, continuously shortening the distance between the driving wheels and the distance between the driven wheels by 2-3mm, slowly reversely rotating the driving wheels, forcing the corrugated pipe to reversely rotate, and returning to the initial transition area;
(6) Repeating the steps (4) - (5) for a plurality of times until the total shortening amount of the intervals between the driving wheels and the driven wheels reaches 7-9mm;
(7) After the correction of one of the round corners is finished, the distance between the driving wheel and the driven wheel is increased by 5mm, and then sequential straight-edge extrusion is carried out, the driving wheel is slowly rotated, and the corrugated pipe is forced to slide along the straight-edge appearance until reaching the transition area of the next round corner;
(8) Repeating steps (4) - (7) until all straight sides and rounded corners are shaped;
(9) And finally, sequentially correcting, namely reducing the distance between the driving wheel axle and the driven wheel axle by 1mm, slowly rotating the driving wheel according to the appearance sequence, after forcing the corrugated pipe to finish one circle of sliding, measuring the wave height and the wave distance of the corrugated pipe, ensuring that the wave height reaches the design requirement, and if the wave distance is lower than the design value by 2-3mm, repeating the step 9 until the requirement is not met, stopping correcting, and taking down the pipe blank to finish the whole correcting process.
Compared with the prior art, the invention has the advantages that the round corners are firstly corrected and then the straight edges are corrected in the correction process; the operation steps of reducing the distance between the main wheel axle and the auxiliary wheel axle when the straight edge is corrected are carried out, so that the clamping force of the main wheel and the auxiliary wheel to the pipe blank is larger, the phenomenon of wheel clamping caused by large hardness of the corner of the corrugated pipe in the correcting process is avoided, and the final obtained corrugated pipe wave distance and wave height can keep higher uniformity.
The foregoing has described in detail the technical solutions provided by the embodiments of the present invention, and specific examples have been applied to illustrate the principles and implementations of the embodiments of the present invention, where the illustrations of the above embodiments are only useful for helping to understand the principles of the embodiments of the present invention; meanwhile, as for the person skilled in the art, according to the embodiments of the present invention, the details of the present invention and the application range may vary, and the present description should not be construed as limiting the present invention.
Claims (1)
1. An orthopedic process for a rectangular bellows, comprising the steps of:
(1) The pipe blank is put on, sleeve blocks of a driving shaft and a driven shaft are removed, the pipe blank is lifted between a driving wheel and a driven wheel, and the intervals between the driving wheel and the driven wheel are adjusted to be larger than the wave height of the corrugated pipe by 5mm;
(2) Combining the driving wheel and the driven wheel, pushing up the sleeve blocks, adjusting the intervals between the driving wheels and the driven wheel, respectively inserting the driving wheel and the driven wheel into wave cavities of the corrugated pipe, combining the driving wheel and the driven wheel, and keeping the corrugated pipe fixed under extrusion force;
(3) Positioning an initial orthopedic position, slowly rotating the driving wheel, and forcing the rectangular corrugated pipe to slide to a transition area between the round angle and one side straight edge along the outline boundary of the rectangular corrugated pipe to stop;
(4) The round corners are shaped, the distance between the driving wheels and the distance between the driven wheels are shortened by 2-3mm, the driving wheels are slowly rotated, the corrugated pipe is forced to slide and rotate, and the pipe blank rotates until the driving wheels and the driven wheels clamp the other transition section area of the same round corner;
(5) Reversing the orthopedic fillet, continuously shortening the distance between the driving wheel and the driven wheel by 2-3mm, slowly reversely rotating the driving wheel, forcing the corrugated pipe to reversely rotate, and returning to the initial transition area;
(6) Repeating the steps (4) - (5) for a plurality of times until the total shortening amount of the intervals between the driving wheels and the driven wheels reaches 7-9mm;
(7) After the correction of one of the round corners is finished, the distance between the driving wheel and the driven wheel is increased by 5mm, then sequential straight-edge extrusion is carried out, the driving wheel is slowly rotated, and the corrugated pipe is forced to slide along the straight-edge appearance until reaching the transition area of the next round corner;
(8) Repeating steps (4) - (7) until all straight sides and rounded corners are shaped;
(9) And finally, sequentially correcting, namely reducing the distance between the driving wheel and the driven wheel by 1mm, slowly rotating the driving wheel according to the appearance sequence, after forcing the corrugated pipe to finish one circle of sliding, measuring the wave height and the wave distance of the corrugated pipe, ensuring that the wave height reaches the design requirement, and if the wave distance is lower than the design value by 2-3mm, repeating the step (9) until stopping correcting after reaching, and taking down the pipe blank to finish the whole correcting process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011605587.0A CN112620409B (en) | 2020-12-30 | 2020-12-30 | Orthopedic process for rectangular corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011605587.0A CN112620409B (en) | 2020-12-30 | 2020-12-30 | Orthopedic process for rectangular corrugated pipe |
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| Publication Number | Publication Date |
|---|---|
| CN112620409A CN112620409A (en) | 2021-04-09 |
| CN112620409B true CN112620409B (en) | 2024-04-12 |
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| CN202011605587.0A Active CN112620409B (en) | 2020-12-30 | 2020-12-30 | Orthopedic process for rectangular corrugated pipe |
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| CN (1) | CN112620409B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190927794A (en) * | 1909-11-29 | 1910-06-23 | James Arthur Ogilvie | Organ Bellows or the like and the Mechanism for Controlling and Operating the same. |
| FR1234332A (en) * | 1958-11-21 | 1960-10-17 | Titeflex | Manufacturing process of flexible corrugated tubes |
| JPS4863144A (en) * | 1971-11-30 | 1973-09-03 | ||
| DE3019896A1 (en) * | 1980-05-23 | 1981-12-03 | Hübner Gummi- und Kunststoff GmbH, 3500 Kassel | Folding rectangular-section bellows between e.g. rail vehicles - has outwardly convex stiff elements interconnected by frames at inside of bellows |
| WO2000057094A1 (en) * | 1999-03-23 | 2000-09-28 | Siegfried Geldner | Bellows for a compensator and compensator pertaining thereto and method for producing bellows |
| JP2006002863A (en) * | 2004-06-18 | 2006-01-05 | Chugoku Bendo Kk | Bellows expansion joint in square shape made of non-metal material |
| CN104084456A (en) * | 2014-07-04 | 2014-10-08 | 北京兴达波纹管有限公司 | Corrugated pipe wave correction machine |
| CN203955783U (en) * | 2014-07-04 | 2014-11-26 | 北京兴达波纹管有限公司 | Bellows school ripple machine |
| DE102013106547A1 (en) * | 2013-06-24 | 2014-12-24 | Witzenmann Gmbh | Conduit element and method for its production |
| DE102017217536A1 (en) * | 2017-10-02 | 2019-04-04 | Carl Freudenberg Kg | Bellows bladder, bellows and process for their preparation |
| CN111438223A (en) * | 2020-04-03 | 2020-07-24 | 西安石油大学 | Integral forming method for rectangular metal corrugated pipe |
-
2020
- 2020-12-30 CN CN202011605587.0A patent/CN112620409B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190927794A (en) * | 1909-11-29 | 1910-06-23 | James Arthur Ogilvie | Organ Bellows or the like and the Mechanism for Controlling and Operating the same. |
| FR1234332A (en) * | 1958-11-21 | 1960-10-17 | Titeflex | Manufacturing process of flexible corrugated tubes |
| JPS4863144A (en) * | 1971-11-30 | 1973-09-03 | ||
| DE3019896A1 (en) * | 1980-05-23 | 1981-12-03 | Hübner Gummi- und Kunststoff GmbH, 3500 Kassel | Folding rectangular-section bellows between e.g. rail vehicles - has outwardly convex stiff elements interconnected by frames at inside of bellows |
| WO2000057094A1 (en) * | 1999-03-23 | 2000-09-28 | Siegfried Geldner | Bellows for a compensator and compensator pertaining thereto and method for producing bellows |
| JP2006002863A (en) * | 2004-06-18 | 2006-01-05 | Chugoku Bendo Kk | Bellows expansion joint in square shape made of non-metal material |
| DE102013106547A1 (en) * | 2013-06-24 | 2014-12-24 | Witzenmann Gmbh | Conduit element and method for its production |
| CN104084456A (en) * | 2014-07-04 | 2014-10-08 | 北京兴达波纹管有限公司 | Corrugated pipe wave correction machine |
| CN203955783U (en) * | 2014-07-04 | 2014-11-26 | 北京兴达波纹管有限公司 | Bellows school ripple machine |
| DE102017217536A1 (en) * | 2017-10-02 | 2019-04-04 | Carl Freudenberg Kg | Bellows bladder, bellows and process for their preparation |
| CN111438223A (en) * | 2020-04-03 | 2020-07-24 | 西安石油大学 | Integral forming method for rectangular metal corrugated pipe |
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| Publication number | Publication date |
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| CN112620409A (en) | 2021-04-09 |
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