CN210876911U - Practical anti-deformation pipe bending machine die - Google Patents
Practical anti-deformation pipe bending machine die Download PDFInfo
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- CN210876911U CN210876911U CN201922072028.7U CN201922072028U CN210876911U CN 210876911 U CN210876911 U CN 210876911U CN 201922072028 U CN201922072028 U CN 201922072028U CN 210876911 U CN210876911 U CN 210876911U
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- guide pulley
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- wall
- curved surface
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- 238000005452 bending Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 230000003466 anti-cipated effect Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013003 hot bending Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a practicality anti-deformation bending machine mould, including the guide pulley, the center department of one side outer wall of guide pulley opens has the shaft hole, and the shaft hole runs through to the opposite side outer wall of guide pulley, and it has the guide pulley groove to open on the side outer wall of guide pulley, and is provided with two first curved surfaces and second curved surface on the bottom outer wall of guide pulley groove respectively, and the cross section of first curved surface and second curved surface all is convex structure, and the cross section radius of first curved surface is R, and the cross section radius of second curved surface is R, and the second curved surface is located between two first curved surfaces. The utility model discloses be provided with first crooked face and the crooked face of second, according to anti-deformation principle, improve return bend guide pulley mould guide slot size, change approximate oval structure for semi-circular from the cross section, let the pipeline leave predeformation power in bending process, make and be improved by the return bend atress, reach anticipated deformation effect.
Description
Technical Field
The utility model relates to a mold processing technology field especially relates to a practicality anti-deformation bending machine mould.
Background
The new power generation company is small-size thermal power company, the superhigh pressure steam conduit that unit boiler equipment relates to is more, wherein the high temperature high-pressure pipe of model phi 42 specification uses comparatively commonly, in the daily face pipe that is heated overhauls or the equipment transformation in-process, need a large amount of bending tube rows, this end new company has purchased a set of ordinary clod wash bending machine, the guide slot cross section of guide pulley is the pipeline radius in the bent pipe mould of company purchase and the return bend guide pulley, both merge the back is the diameter of the pipeline that bends, in the use, to thick-walled pipe, the pipeline section homoenergetic that bends out can satisfy ovality and surface roughness.
However, for the thin-wall pipe, because the relative deformation of the pipe wall is large, the defects of standard-exceeding ovality, bulging, cracking and the like are easily generated, so that the bent pipe section does not meet the installation requirements of a pressure-bearing pipeline, a manufacturer with a specific mould and a pipe filling hot bending process needs to order the pipe section, and the cost is high. Therefore, it is necessary to design a practical reversible-deformation pipe bender mold to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the existence among the prior art to the thin wall pipe, because pipe wall deformation relative quantity is big, produce defects such as ovality exceeds standard, swell, fracture easily, the pipeline section that leads to the system of bending is not conform to the pressure-bearing pipeline installation requirement, need entrust have specific mould, intraductal firm that fills the hot-bending technology to customize, the higher shortcoming of its cost expense, and the practicality anti-deformation bending machine mould that provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a practicality anti-deformation bending machine mould, includes the guide pulley, the center department of one side outer wall of guide pulley opens there is the shaft hole, and the shaft hole runs through to the opposite side outer wall of guide pulley, it has the guide pulley groove to open on the side outer wall of guide pulley, and is provided with two first curved surfaces and second curved surface on the bottom outer wall of guide pulley groove respectively.
The key concept of the technical scheme is as follows: according to the anti-deformation principle, the size of the guide groove of the bent pipe guide wheel die is improved by the aid of the arranged first bending surface and the second bending surface, the cross section is changed into a semicircular structure to be similar to an elliptical structure, and a pre-deformation force is reserved on a pipeline in the bending process, so that the stress of the bent pipe is improved, and an expected deformation effect is achieved.
Further, the cross sections of the first bending surface and the second bending surface are both arc-shaped structures, the radius of the cross section of the first bending surface is R, and the radius of the cross section of the second bending surface is R; the second bending surface is positioned between the two first bending surfaces, and the cross section of the second bending surface is tangent to the cross section of the first bending surface.
The utility model has the advantages that:
1. according to the anti-deformation principle, the size of the guide groove of the bent pipe guide wheel die is improved by the aid of the arranged first bending surface and the second bending surface, the cross section is changed into a semicircular structure to be similar to an elliptical structure, and a pre-deformation force is reserved on a pipeline in the bending process, so that the stress of the bent pipe is improved, and an expected deformation effect is achieved.
Drawings
Fig. 1 is a schematic structural diagram of a practical reversible deformation pipe bender mold according to the present invention;
fig. 2 is a left side view of a structure of a practical reversible pipe bender mold according to the present invention;
fig. 3 is a schematic view of a mold assembly structure of a practical anti-deformation pipe bending machine mold according to the present invention.
In the figure: guide wheel 1, guide wheel groove 2, shaft hole 3, first curved surface 4, second curved surface 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 3, a practical anti-deformation pipe bender mold includes a guide wheel 1, a shaft hole 3 is formed in a center of an outer wall of one side of the guide wheel 1 for connecting with a pipe bender, the shaft hole 3 penetrates through an outer wall of the other side of the guide wheel 1, a guide wheel groove 2 is formed in an outer wall of a side surface of the guide wheel 1 for forming a bending surface of a bent pipe, and two first bending surfaces 4 and two second bending surfaces 5 are respectively disposed on an outer wall of a bottom of the guide wheel groove 2.
As can be seen from the above description, the present invention has the following advantages: according to the anti-deformation principle, the size of the guide groove of the bent pipe guide wheel die is improved by the aid of the arranged first bending surface and the second bending surface, the cross section is changed into a semicircular structure to be similar to an elliptical structure, and a pre-deformation force is reserved on a pipeline in the bending process, so that the stress of the bent pipe is improved, and an expected deformation effect is achieved.
Furthermore, the cross sections of the first curved surface 4 and the second curved surface 5 are both arc-shaped structures, and the cross section radius of the first curved surface 4 is R1, R1 is 0.95D, and the cross section radius of the second curved surface 5 is R2, and R2 is 0.4D.
Further, the second bending surface 5 is located between the two first bending surfaces 4, and the cross section of the second bending surface 5 is tangent to the cross section of the first bending surface 4, so that the guide wheel groove 2 is smooth as a whole, and unnecessary stress is not applied to the pipeline.
In the following, some preferred embodiments or application examples are listed to help those skilled in the art to better understand the technical content of the present invention and the technical contribution of the present invention to the prior art:
example 1
The utility model provides a practicality anti-deformation bending machine mould, includes guide pulley 1, and the center department of one side outer wall of guide pulley 1 opens there is shaft hole 3 for be connected with the bending machine, and shaft hole 3 runs through to guide pulley 1's opposite side outer wall, and it has guide pulley groove 2 to open on guide pulley 1's the side outer wall, is used for the shaping of return bend curved surface, and is provided with two first curved surfaces 4 and second curved surface 5 on the bottom outer wall of guide pulley groove 2 respectively.
The cross sections of the first bending surface 4 and the second bending surface 5 are both arc-shaped structures, the radius of the cross section of the first bending surface 4 is R1, R1 is 0.95D, the radius of the cross section of the second bending surface 5 is R2, and R2 is 0.4D; the second curved surface 5 is located between the two first curved surfaces 4, and the cross section of the second curved surface 5 is tangent to the cross section of the first curved surface 4, so that the guide wheel groove 2 is smooth as a whole, and unnecessary stress is not applied to the pipeline.
The working principle is as follows: when the pipe bending machine is used, an operator firstly installs the guide wheel 1 on the pipe bending machine through the shaft hole 3 and the flat key, then places a pipeline to be bent on a mould of the pipe bending machine, then starts the pipe bending machine, the pipe bending mould and the guide wheel 1 jointly extrude a pipe section, and the pipeline deforms in the guide wheel groove 2 according to a preset bending radius and a preset bending angle to meet the pipe bending manufacturing requirement; in the extrusion process, the outer side of the pipeline at the bending deformation position of the pipeline is deformed in the opposite direction in advance and protrudes outwards to offset the elliptical deformation generated when the pipeline is bent, so that the cross section of the pipeline is restored to be circular; according to the characteristics of the bent pipeline of the company, the value is determined to be R1-0.95D, R2-0.4D and D is the diameter of the bent pipe through a plurality of tests; after the first bending surface 4 and the second bending surface 5 of the guide wheel groove 2 are improved, all parameters can meet the relevant requirements of a boiler pressure-bearing pipeline in the process of bending the phi 42 x 3.5mm pipe row by the company.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (3)
1. The utility model provides a practicality anti-deformation bending machine mould, includes guide pulley (1), its characterized in that, the center department of one side outer wall of guide pulley (1) opens has shaft hole (3), and shaft hole (3) run through to the opposite side outer wall of guide pulley (1), it has guide pulley groove (2) to open on the side outer wall of guide pulley (1), and is provided with two first crooked faces (4) and second crooked face (5) on the bottom outer wall of guide pulley groove (2) respectively.
2. The practical counter-deformation pipe bender mould according to claim 1, characterized in that the cross sections of the first bending surface (4) and the second bending surface (5) are circular arc structures, and the cross section radius of the first bending surface (4) is R1, and the cross section radius of the second bending surface (5) is R2.
3. Practical counter-deformation pipe bender mould according to claim 1, characterized in that the second bending surface (5) is located between two first bending surfaces (4), and the cross section of the second bending surface (5) is tangent to the cross section of the first bending surfaces (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922072028.7U CN210876911U (en) | 2019-11-27 | 2019-11-27 | Practical anti-deformation pipe bending machine die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922072028.7U CN210876911U (en) | 2019-11-27 | 2019-11-27 | Practical anti-deformation pipe bending machine die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210876911U true CN210876911U (en) | 2020-06-30 |
Family
ID=71311487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922072028.7U Active CN210876911U (en) | 2019-11-27 | 2019-11-27 | Practical anti-deformation pipe bending machine die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210876911U (en) |
-
2019
- 2019-11-27 CN CN201922072028.7U patent/CN210876911U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240805 Address after: No. 34, Zhongxi Village, Sixi Village Committee, Xinxi Township, Yushui District, Xinyu City, Jiangxi Province 338000 Patentee after: Zhou Meilin Country or region after: China Address before: 338000 Songqiao village, Shatu Township, Yushui District, Xinyu City, Jiangxi Province Patentee before: JIANGXI DATANG INTERNATIONAL XINYU POWER GENERATION Co.,Ltd. Country or region before: China |