CN107824647A - A kind of Large Diameter Pipeline pipe cold bending shaping method - Google Patents
A kind of Large Diameter Pipeline pipe cold bending shaping method Download PDFInfo
- Publication number
- CN107824647A CN107824647A CN201710845477.3A CN201710845477A CN107824647A CN 107824647 A CN107824647 A CN 107824647A CN 201710845477 A CN201710845477 A CN 201710845477A CN 107824647 A CN107824647 A CN 107824647A
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- CN
- China
- Prior art keywords
- pipe
- curved
- copying apparatus
- hydraulic press
- radius
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
-
- 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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
Abstract
The present invention is applied to mechanical field, there is provided a kind of Large Diameter Pipeline pipe cold bending shaping method, this method include：Copying apparatus is made according to the curvature that pipe to be curved needs to bend, and the copying apparatus is fixed on platform for making, start hydraulic press, the pipe to be curved is set to be brought into close contact with the copying apparatus, the hydraulic press is closed, the pipe to be curved is separated with the copying apparatus, and be again started up the hydraulic press, the pipe to be curved is bent again, be brought into close contact with the copying apparatus.Big radian promotion is carried out to pipe to be curved by hydraulic press, pipe to be curved is set to be brought into close contact with copying apparatus, realize pipe clod wash, and indirect use fire bending realizes that pipe is bent, on the one hand the consumption of the energy can be reduced, reduce cost and reduces man-hour for expending, control that on the other hand can be relatively good for the precision of making.
Description
Technical field
The present invention relates to mechanical field, more particularly to a kind of Large Diameter Pipeline pipe cold bending shaping method.
Background technology
With the development of domestic and international construction steel structure, Large Diameter Pipeline circular tube truss, bow member are got in fields such as building, bridges
Carry out more applications.The increase of caliber can both increase the span of bow member, can also have overall structure of great momentum, forceful
Energetic appearance.
But at present, the ripe steel pipe cold bending process of factory, generally caliber are less than 500mm tubular truss chord member, more greatly
The bend pipe project of caliber typically use hot-bending bends, this process efficiency is low, it is longer to expend man-hour, and cost is high and makes
It is difficult to control as precision.
The content of the invention
It is a primary object of the present invention to provide a kind of Large Diameter Pipeline pipe cold bending shaping method, can solve in the prior art
The hot-bending bends technology that Large Diameter Pipeline pipe typically uses expends more, cost height and makes the uppity technical problem of precision.
To achieve the above object, the invention provides a kind of Large Diameter Pipeline pipe cold bending shaping method, methods described to include：
Need the curvature that bends to determine the radius of copying apparatus according to pipe to be curved, make the copying apparatus, and by institute
Copying apparatus is stated to be fixed on platform for making；
Start hydraulic press, the pipe to be curved is brought into close contact with the copying apparatus；
The hydraulic press is closed, the pipe to be curved is separated with the copying apparatus, and is again started up the hydraulic press,
The pipe to be curved is bent again, be brought into close contact with the copying apparatus.
The present invention provides a kind of Large Diameter Pipeline pipe cold bending shaping method, and this method is carried out big by hydraulic press to pipe to be curved
Radian promotes, and pipe to be curved is brought into close contact with copying apparatus, and the radius of the copying apparatus needs what is bent with the pipe to be curved
Curvature is corresponding, and so as to realize pipe clod wash, and indirect use hot-bending bends technology realizes that pipe is bent, and on the one hand can be dropped
The consumption of low energy, reduce cost and reduce the man-hour expended, control that on the other hand can be relatively good for the precision of making.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those skilled in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the flow chart of Large Diameter Pipeline pipe cold bending shaping method in the embodiment of the present invention；
Fig. 2 is the schematic diagram of Large Diameter Pipeline pipe cold bending shaping method in the embodiment of the present invention；
Fig. 3 is the refined flow chart of step 101 in the embodiment of the present invention.
Embodiment
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described reality
It is only part of the embodiment of the present invention to apply example, and not all embodiments.Based on the embodiment in the present invention, people in the art
The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Because the hot-bending bends technology consuming man-hour that Large Diameter Pipeline pipe typically uses in the prior art is more, energy resource consumption is big,
Make the technical problem of precision deficiency.
In order to solve the above-mentioned technical problem, the present invention proposes a kind of Large Diameter Pipeline pipe cold bending shaping method, in the present embodiment
Middle Large Diameter Pipeline pipe cold bending shaping method operates on platform for making.
Refer to Fig. 1 and Fig. 2, Fig. 1 is the flow chart of Large Diameter Pipeline pipe cold bending shaping method in the embodiment of the present invention, Fig. 2
For the schematic diagram of Large Diameter Pipeline pipe cold bending shaping method in the embodiment of the present invention, this method includes：
Step 101, the curvature for needing to bend according to pipe 1 to be curved determine the radius of copying apparatus 2, make copying apparatus 2,
And copying apparatus 2 is fixed on platform for making 3；
Specifically, if pipe to be curved needs the curvature difference bent, need to make the copying apparatus of corresponding radius of curvature.
Step 102, start hydraulic press 4, pipe 1 to be curved is brought into close contact with copying apparatus 2, realize the of pipe 1 to be curved
Once bend；
Specifically, before hydraulic press 4 is started, pipe 1 to be curved is hoisted on platform for making 3 by lifting machine, and
The position of pipe 1 to be curved is adjusted, makes the two of hydraulic press 4 to promote the cover die of shaft end to abut pipe 1 to be curved.
Step 103, hydraulic press 4 is closed, pipe 1 to be curved is separated with copying apparatus 2, and be again started up hydraulic press 4, make to treat
Curved pipe 1 is bent again, is brought into close contact with copying apparatus 2, realizes bending for the second time for pipe 1 to be curved.
Further, referring to Fig. 3, Fig. 3 is the refined flow chart of step 101 in the embodiment of the present invention.Step 101 is wrapped
Include：
Step 301, computer lofting carried out according to the curvature of the bend pipe figure of pipe 1 to be curved, determine the half of copying apparatus 2
Footpath；
Step 302, the radius according to copying apparatus 2, the ground line-transect of the curvature of copying apparatus 2 is drawn on platform for making 3；
Step 303, the installation according to ground line-transect progress copying apparatus 2.
Further, before hydraulic press 4 is started, including：
According to the radius manufacture craft supporting clapboard 5 of pipe 1 to be curved, the cross section of processing support dividing plate 5 is circular, the circle
Shape radius is less than the preset value of the pipe radius to be curved.
Further, after hydraulic press 4 is started, including：
Processing support dividing plate 5 is added in the end of pipe 1 to be curved temporarily, prevents pipe 1 to be curved from becoming during bending
Shape.
Further, also include the step of Large Diameter Pipeline pipe cold bending shaping method in the present embodiment：
Processing support dividing plate 5 is removed after pipe 1 to be curved is bent.
Further, also include the step of Large Diameter Pipeline pipe cold bending shaping method in the present embodiment：
Cross is drawn in the mouth of pipe of pipe 1 to be curved, bus is drawn according to outer wall of the position of the cross in pipe 1 to be curved,
In the present embodiment, exemplified by drawing a quarter bus, and pipe 1 to be curved inwall to should bus positional distance it is to be curved
Loading punch mark is struck at the mouth of pipe preset distance of pipe 1, the preset distance is a fractional value, in the present embodiment, sample punching
The marking path pipe mouth of pipe 200mm to be curved, the sample punch mark be used for determine pipe 1 to be curved bend after longitudinal joint position.
Further, the step 101 of Large Diameter Pipeline pipe cold bending shaping method also includes in the present embodiment：
By the line style position of wedge-shaped adjusting block insertion copying apparatus 2, the depth being downwardly into according to the wedge-shaped adjusting block come
The line style of accurate adjustment copying apparatus 2 is, it is necessary to which explanation, copying apparatus 2 are adjacent to place and copying apparatus 2 with pipe 1 to be curved
Curvature line-transect it is tangent.
Further, also include the step of Large Diameter Pipeline pipe cold bending shaping method in the present embodiment：
The bend pipe after pipe 1 to be curved is bent is drawn on platform for making 3 line-transect, and ground line-transect stand is set up, will
Pipe to be curved 1 after bending is hung on the ground line-transect stand；
Compare the clod wash precision that the ground line-transect checks pipe 1 to be curved.
In the present embodiment, this method carries out big radian promotion by hydraulic press to pipe to be curved, makes pipe to be curved with leaning on
Die device is brought into close contact, and the radius of the copying apparatus is corresponding with the curvature that pipe needs to be curved are bent, so as to realize pipe
Clod wash, and it is indirect using hot-bending bends technology realize pipe bend, on the one hand can reduce the consumption of the energy, reduce cost and
Reduce the man-hour expended, control that on the other hand can be relatively good for the precision of making.
It is to a kind of description of Large Diameter Pipeline pipe cold bending shaping method provided by the present invention, for the skill of this area above
Art personnel, according to the thought of the embodiment of the present invention, there will be changes in specific embodiments and applications, to sum up,
This specification content should not be construed as limiting the invention.
Claims (8)
1. a kind of Large Diameter Pipeline pipe cold bending shaping method, it is characterised in that methods described includes：
The curvature for needing to bend according to pipe to be curved determines the radius of copying apparatus, makes the copying apparatus, and leaned on by described in
Die device is fixed on platform for making；
Start hydraulic press, the pipe to be curved is brought into close contact with the copying apparatus；
The hydraulic press is closed, the pipe to be curved is separated with the copying apparatus, and is again started up the hydraulic press, makes institute
State pipe to be curved to bend again, be brought into close contact with the copying apparatus.
2. method according to claim 1, it is characterised in that the curvature for needing to bend according to pipe to be curved determines pattern
The radius of device, making the copying apparatus includes：
Computer lofting is carried out according to the curvature of the bend pipe figure of the pipe to be curved, determines the radius of the copying apparatus；
According to the radius of the copying apparatus, the ground line-transect of the copying apparatus curvature is drawn on the platform for making；
The installation of the copying apparatus is carried out according to described ground line-transect.
3. method according to claim 1 or claim 2, it is characterised in that before the startup hydraulic press, including：
According to the radius manufacture craft supporting clapboard of the pipe to be curved, the cross section of the processing support dividing plate is circular, institute
State circular radius and be less than the pipe radius preset value to be curved.
4. method according to claim 3, it is characterised in that after the startup hydraulic press, including：
The processing support dividing plate is added in the pipe end to be curved temporarily.
5. method according to claim 4, it is characterised in that methods described also includes：
The processing support dividing plate is removed after the pipe to be curved is bent.
6. method according to claim 5, it is characterised in that methods described also includes：
Cross is drawn in the mouth of pipe of the pipe to be curved, mother is drawn according to outer wall of the position of the cross in the pipe to be curved
Line, and the bus position is corresponded in the inwall of the pipe to be curved, struck at the mouth of pipe preset distance of the pipe to be curved
Loading punch mark, it is described mark for determine the pipe to be curved bend after longitudinal joint position.
7. method according to claim 6, it is characterised in that methods described also includes：
Wedge-shaped adjusting block is inserted to the line style position of the copying apparatus, the depth being downwardly into according to the wedge-shaped adjusting block come
Accurately adjust the line style of the copying apparatus so that the copying apparatus is adjacent to place and the copying apparatus with the pipe to be curved
Curvature line-transect it is tangent.
8. method according to claim 7, it is characterised in that methods described also includes：
The bend pipe after the pipe to be curved is bent is drawn on the platform for making line-transect, and ground line-transect stand is set up,
The pipe to be curved after bending is hung on described ground line-transect stand；
Compare the clod wash precision that described ground line-transect checks the pipe to be curved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710845477.3A CN107824647A (en) | 2017-09-19 | 2017-09-19 | A kind of Large Diameter Pipeline pipe cold bending shaping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710845477.3A CN107824647A (en) | 2017-09-19 | 2017-09-19 | A kind of Large Diameter Pipeline pipe cold bending shaping method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107824647A true CN107824647A (en) | 2018-03-23 |
Family
ID=61643367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710845477.3A Pending CN107824647A (en) | 2017-09-19 | 2017-09-19 | A kind of Large Diameter Pipeline pipe cold bending shaping method |
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| CN (1) | CN107824647A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586771A (en) * | 2019-10-30 | 2019-12-20 | 中国二十二冶集团有限公司 | Large-diameter pipeline pipe bending device and pipe bending method |
| CN111589913A (en) * | 2020-05-08 | 2020-08-28 | 安徽伟宏钢结构集团股份有限公司 | Method for manufacturing large-diameter circular tube formed through cold bending |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61186127A (en) * | 1985-02-13 | 1986-08-19 | Toyota Motor Corp | Device for bending pipe |
| CN201147795Y (en) * | 2008-01-15 | 2008-11-12 | 王江武 | Section bar dynamic former |
| CN101912907A (en) * | 2010-08-13 | 2010-12-15 | 安徽瑶海钢结构股份有限公司 | Cold-bending processing equipment and method of steel pipe |
| CN201684818U (en) * | 2010-05-07 | 2010-12-29 | 浙江精工钢结构有限公司 | Mechanized cold bending equipment for steel pipe |
| CN102513421A (en) * | 2011-12-08 | 2012-06-27 | 北京联合大学 | Adjustable large-diameter pipe bending machine |
| CN203448474U (en) * | 2013-08-12 | 2014-02-26 | 贵州铜仁邦农农机有限公司 | Hydraulic plow-arm forming device |
| CN204171125U (en) * | 2014-10-27 | 2015-02-25 | 鞍山东方钢构桥梁有限公司 | Curved plate plane inner bending equipment |
| CN105382491A (en) * | 2015-11-26 | 2016-03-09 | 上海建工（江苏）钢结构有限公司 | Machining, manufacturing and inspection method of arc-shaped steel pipe column |
| CN105522022A (en) * | 2016-01-19 | 2016-04-27 | 宁海县华力机械有限公司 | Curvature-variable bending equipment for skylight guide rail |
-
2017
- 2017-09-19 CN CN201710845477.3A patent/CN107824647A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61186127A (en) * | 1985-02-13 | 1986-08-19 | Toyota Motor Corp | Device for bending pipe |
| CN201147795Y (en) * | 2008-01-15 | 2008-11-12 | 王江武 | Section bar dynamic former |
| CN201684818U (en) * | 2010-05-07 | 2010-12-29 | 浙江精工钢结构有限公司 | Mechanized cold bending equipment for steel pipe |
| CN101912907A (en) * | 2010-08-13 | 2010-12-15 | 安徽瑶海钢结构股份有限公司 | Cold-bending processing equipment and method of steel pipe |
| CN102513421A (en) * | 2011-12-08 | 2012-06-27 | 北京联合大学 | Adjustable large-diameter pipe bending machine |
| CN203448474U (en) * | 2013-08-12 | 2014-02-26 | 贵州铜仁邦农农机有限公司 | Hydraulic plow-arm forming device |
| CN204171125U (en) * | 2014-10-27 | 2015-02-25 | 鞍山东方钢构桥梁有限公司 | Curved plate plane inner bending equipment |
| CN105382491A (en) * | 2015-11-26 | 2016-03-09 | 上海建工（江苏）钢结构有限公司 | Machining, manufacturing and inspection method of arc-shaped steel pipe column |
| CN105522022A (en) * | 2016-01-19 | 2016-04-27 | 宁海县华力机械有限公司 | Curvature-variable bending equipment for skylight guide rail |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586771A (en) * | 2019-10-30 | 2019-12-20 | 中国二十二冶集团有限公司 | Large-diameter pipeline pipe bending device and pipe bending method |
| CN111589913A (en) * | 2020-05-08 | 2020-08-28 | 安徽伟宏钢结构集团股份有限公司 | Method for manufacturing large-diameter circular tube formed through cold bending |
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Application publication date: 20180323 |
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