CN111195819A - Arc square tube bending transition device and construction method thereof - Google Patents
Arc square tube bending transition device and construction method thereof Download PDFInfo
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- CN111195819A CN111195819A CN202010039184.8A CN202010039184A CN111195819A CN 111195819 A CN111195819 A CN 111195819A CN 202010039184 A CN202010039184 A CN 202010039184A CN 111195819 A CN111195819 A CN 111195819A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention discloses a bending transition device for a circular arc square tube, which is formed by welding two upper and lower arc plates which are arranged in parallel at intervals from top to bottom and two left and right arc plates which are arranged in parallel at intervals from left to right, wherein the inner side of the vertical section of the device is square; the plate surfaces of the upper and lower arc plates are arc-shaped or plane-shaped, and the plate surfaces of the left and right arc plates are arc-shaped or plane-shaped; the long edges of the upper arc plate and the lower arc plate are matched with the long edges of the left arc plate and the right arc plate and are welded; the upper end and the lower end of the left arc plate and the right arc plate are both provided with cambered surfaces, one side of each cambered surface is in smooth transition with the upper surface or the lower surface of the upper arc plate and the lower arc plate, and the other side of each cambered surface is in smooth transition with the outer side surfaces of the left arc plate and the right arc plate. The invention also discloses a construction method using the device. The device provided by the invention is simple in structure and convenient to manufacture, effectively solves the problem of smooth transition between a right angle and an arc angle when the arc square tube is bent and transited by combining the construction method, has good welding quality and impression quality at the butt joint, improves the manufacturing quality of a steel member, reduces the manufacturing cost and shortens the manufacturing period.
Description
Technical Field
The invention relates to the technical field of steel structure installation, in particular to an arc square tube bending transition device and a construction method thereof.
Background
At present, in various construction projects, steel structure installation is one of indispensable important components, and arc square pipes are steel materials commonly used in steel structure projects. In the installation process of a steel structure, the bending transition of two sections of circular arc square pipes is a problem which is often encountered, the traditional method generally adopts the splicing welding of several steel plates, but the four corners of the circular arc square pipes are circular arcs rather than right angles, the smooth transition of the right angles and the circular arc angles cannot be met by the splicing of the conventional steel plates, the welding quality and the impression of butt joints cannot meet the requirements, and the effect is poor.
Disclosure of Invention
Aiming at the technical problem of the prior art that the arc square tube is bent and transited, the invention provides the arc square tube bending and transition device which is simple in structure and convenient to manufacture, and the bending and transition construction method using the arc square tube bending and transition device, and the arc square tube bending and transition device is simple and easy to construct, safe and reliable and low in construction cost.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention relates to a circular arc square tube bending transition device, which is innovative in that: the arc welding device is formed by welding two upper and lower arc plates which are arranged in parallel at intervals from top to bottom and two left and right arc plates which are arranged in parallel at intervals from left to right, and the inner side of the vertical section of the arc welding device is square; the plate surfaces of the upper and lower arc plates are arc-shaped or plane-shaped, and the plate surfaces of the left and right arc plates are arc-shaped or plane-shaped; the long edges of the upper arc plate and the lower arc plate are matched with the long edges of the left arc plate and the right arc plate and are welded; the upper end and the lower end of the left arc plate and the right arc plate are both provided with cambered surfaces, one side of each cambered surface is in smooth transition with the upper surface or the lower surface of the upper arc plate and the lower arc plate, and the other side of each cambered surface is in smooth transition with the outer side surfaces of the left arc plate and the right arc plate.
As a further improvement of the technical scheme of the invention, the wall thickness of the left and right arc plates is twice that of the upper and lower arc plates.
As a further improvement of the technical scheme of the invention, the upper arc plate, the lower arc plate, the left arc plate and the right arc plate are made of steel plates.
Another technical solution to solve the technical problem of the present invention is as follows:
a construction method of the arc bending transition device in the technical scheme is applied to bending transition of two sections of arc square pipes in a steel structure, and is characterized by comprising the following steps:
determining the size of an arc bending transition device;
accurately calculating the size of the arc bending transition device according to a design drawing and the specifications of two sections of arc square tubes to be bent and transitioned, and determining the bending radian, direction and length of the arc bending transition device and the size and wall thickness of each of an upper arc plate, a lower arc plate, a left arc plate and a right arc plate which form the arc bending transition device;
step two, steel plate lofting and blanking:
according to the size of the arc bending transition device determined in the step one, respectively lofting and blanking the upper arc plate, the lower arc plate, the left arc plate and the right arc plate on the steel plate which meets the requirements;
step three, pressing each arc plate:
bending the four steel plates which are well fed according to the bending radian, direction and length which are calculated in the first step, and then turning right-angled arcs at the upper end and the lower end of the outer sides of the left arc plate and the right arc plate, wherein the radians are consistent with the circular arc radians of the two sections of circular arc square tubes to be bent and transited;
step four, assembling and welding arc plates:
assembling the two pressed upper and lower arc plates and the two left and right arc plates according to the upper, lower, left and right directions, beveling, welding and polishing and forming the long edges of the four arc plates according to requirements to form an arc bending transition device, finally, welding and connecting two end faces of the arc bending transition device with the end faces of two arc square pipes to be bent and transitioned, and polishing after welding is completed to enable the arc bending transition connecting piece to be smoothly connected and transitioned with the two arc square pipes.
As a further improvement of the technical scheme of the invention, the wall thickness of the upper and lower arc plates determined in the step one is the same as that of the two arc square pipes to be bent and transited, and the wall thickness of the left and right arc plates is twice that of the two arc square pipes to be bent and transited.
The hair suction roller. Turning the outer sides of the two left and right arc plates into circular arcs at an upper right angle and a lower right angle is the key point of the invention, and before processing, lofting is precisely calculated according to the size and specification of the circular arc bending transition device, and particularly, the radian of the circular arc angle is required to be consistent with the radians of the two circular arc square tubes in equal bending transition.
Compared with the prior art, the invention has the beneficial effects that: by adopting the arc square tube bending device and the transition construction method thereof, the problems that the smooth transition of a right angle and an arc angle cannot be met by the conventional steel plate splicing, the welding quality and the impression quality of a butt joint are poor are solved, the centralized operation of pressing, assembling and welding of the steel plates is simple, convenient, easy to operate, safe and reliable, the working efficiency is greatly improved, the manufacturing quality of steel members is improved, the manufacturing cost is reduced, and the manufacturing period is shortened.
Drawings
FIG. 1 is a schematic structural view of a circular arc bending transition device according to the present invention;
FIG. 2 is a schematic view of the upper and lower arc plates of the present invention;
FIG. 3 is a schematic view of the left and right arc plates of the present invention;
in the figure: 1. an upper arc plate and a lower arc plate; 2. a left arc plate and a right arc plate; 21. and (4) cambered surface.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the arc square tube bending transition device of the invention is formed by welding two upper and lower arc plates 1 arranged in parallel at an interval from top to bottom and two left and right arc plates 2 arranged in parallel at an interval from left to right, and the inner side of the vertical section of the arc square tube bending transition device is square; the plate surfaces of the upper and lower arc plates 1 are arc-shaped or plane-shaped, and the plate surfaces of the left and right arc plates 2 are arc-shaped or plane-shaped; the long sides of the upper arc plate 1 and the lower arc plate 1 are matched with the long sides of the left arc plate 2 and the right arc plate 2 and are welded; the upper end and the lower end of the left arc plate and the right arc plate 2 are both provided with cambered surfaces 21, one side of each cambered surface is in smooth transition with the upper surface or the lower surface of the upper arc plate and the lower arc plate 1, and the other side of each cambered surface is in smooth transition with the outer side surfaces of the left arc plate and the right arc plate 2.
In this embodiment, the wall thickness of the left and right arc plates 2 is twice that of the upper and lower arc plates 1.
In this embodiment, the upper and lower arc plates 1 and the left and right arc plates 2 are made of steel plates.
The construction method of the arc bending transition device in the embodiment is applied to bending transition of two sections of arc square pipes in a steel structure, and comprises the following steps:
determining the size of an arc bending transition device;
accurately calculating the size of the arc bending transition device according to a design drawing and the specifications of two sections of arc square tubes to be bent and transitioned, and determining the bending radian, direction and length of the arc bending transition device and the size and wall thickness of each upper arc plate 1, each lower arc plate 2 and each left arc plate 2 which form the arc bending transition device;
step two, steel plate lofting and blanking:
according to the size of the arc bending transition device determined in the step one, lofting and blanking are respectively carried out on each upper arc plate 1, each lower arc plate 1 and each left arc plate 2 on a steel plate which meets the requirements;
step three, pressing each arc plate:
bending the four steel plates which are well fed according to the bending radian, the direction and the length which are calculated in the step one, and then turning right-angled arcs at the upper end and the lower end of the outer side of the left arc plate and the right arc plate 2, wherein the radian is consistent with the radian of the arcs of two arc square pipes to be bent and transited;
step four, assembling and welding arc plates:
assembling the two pressed upper and lower arc plates 1 and the two left and right arc plates 2 in an up-down and left-right manner, beveling, welding and polishing the long edges of the four arc plates according to requirements to form an arc bending transition device, finally, welding and connecting the two end faces of the arc bending transition device with the end faces of the two sections of arc square pipes to be bent and transitioned, and polishing the arc bending transition connector after welding is completed, so that the arc bending transition connector and the two sections of arc square pipes are smoothly connected and transitioned.
In this embodiment, the wall thickness of the upper and lower arc plates 1 determined in the step one is the same as the wall thickness of the two arc square pipes to be bent, and the wall thickness of the left and right arc plates 2 is twice as large as the wall thickness of the two arc square pipes to be bent.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides a crooked transition device in circular arc side pipe which characterized in that: the arc welding device is formed by welding two upper and lower arc plates (1) which are arranged in parallel at intervals from top to bottom and two left and right arc plates (2) which are arranged in parallel at intervals from left to right, and the inner side of the vertical section of the arc welding device is square; the plate surfaces of the upper and lower arc plates (1) are arc-shaped or plane-shaped, and the plate surfaces of the left and right arc plates (2) are arc-shaped or plane-shaped; the long sides of the upper arc plate (1) and the lower arc plate (1) are matched with the long sides of the left arc plate and the right arc plate (2) and are welded; the upper end and the lower end of the left arc plate and the right arc plate (2) are both provided with arc surfaces (21), one side of each arc surface is in smooth transition with the upper surface or the lower surface of the upper arc plate and the lower arc plate (1), and the other side of each arc plate is in smooth transition with the outer side surface of the left arc plate and the right arc plate (2).
2. The curved transition device of claim 1, wherein: the wall thickness of the left and right arc plates (2) is twice that of the upper and lower arc plates (1).
3. The curved transition device of claim 1, wherein: the upper arc plate, the lower arc plate (1), the left arc plate and the right arc plate (2) are made of steel plates.
4. A construction method of the arc bending transition device of any one of claims 1 to 3, which is applied to the bending transition of two sections of arc square pipes in a steel structure, and is characterized by comprising the following steps:
determining the size of an arc bending transition device;
accurately calculating the size of the arc bending transition device according to a design drawing and the specifications of two sections of arc square tubes to be bent and transitioned, and determining the bending radian, direction and length of the arc bending transition device and the size and wall thickness of each upper arc plate (1), lower arc plate (2) and left and right arc plates (2) forming the arc bending transition device;
step two, steel plate lofting and blanking:
according to the size of the arc bending transition device determined in the step one, respectively lofting and blanking the upper arc plate and the lower arc plate (1) and the left arc plate and the right arc plate (2) on a steel plate which meets the requirement;
step three, pressing each arc plate:
bending the four steel plates which are well fed according to the bending radian, direction and length which are calculated in the first step, and then turning right-angled circular arcs at the upper end and the lower end of the outer sides of the left and right arc plates (2), wherein the radian is consistent with that of the circular arcs of two sections of circular arc square pipes to be bent and transited;
step four, assembling and welding arc plates:
assembling two pressed upper and lower arc plates (1) and two left and right arc plates (2) according to the upper, lower, left and right sides, beveling, welding and polishing to form an arc bending transition device on the long sides of the four arc plates according to requirements, finally welding and connecting two end faces of the arc bending transition device with the end faces of two arc square pipes to be bent and transitioned, and polishing after welding is completed to enable the arc bending transition connecting piece to be smoothly connected and transitioned with the two arc square pipes.
5. The construction method of the arc bending transition device according to the claim, characterized in that the wall thickness of the upper and lower arc plates (1) determined in the step one is the same as the wall thickness of the two arc square pipes to be bent and transitioned, and the wall thickness of the left and right arc plates (2) is twice as large as the wall thickness of the two arc square pipes to be bent and transitioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010039184.8A CN111195819A (en) | 2020-01-15 | 2020-01-15 | Arc square tube bending transition device and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010039184.8A CN111195819A (en) | 2020-01-15 | 2020-01-15 | Arc square tube bending transition device and construction method thereof |
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| CN111195819A true CN111195819A (en) | 2020-05-26 |
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| CN202010039184.8A Pending CN111195819A (en) | 2020-01-15 | 2020-01-15 | Arc square tube bending transition device and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116713618A (en) * | 2023-07-13 | 2023-09-08 | 北京新风航天装备有限公司 | Composite forming method for welding aluminum alloy L-shaped rectangular pipe metal plate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04203147A (en) * | 1990-11-30 | 1992-07-23 | Sumitomo Light Metal Ind Ltd | Box girder of lengthy panel |
| CN202834460U (en) * | 2012-08-06 | 2013-03-27 | 玉柴桩工(常州)有限公司 | Bent pipe formed by welding multiple straight pipes |
| CN104060689A (en) * | 2014-04-30 | 2014-09-24 | 浙江东南网架股份有限公司 | Triangular section bending component, special molding bed and processing method thereof |
| CN205167534U (en) * | 2015-11-23 | 2016-04-20 | 许绝电工股份有限公司 | Fang guanmo utensil |
| CN110295709A (en) * | 2019-06-13 | 2019-10-01 | 中建钢构武汉有限公司 | Oblique quadrangle curved arc beam preparation process and oblique quadrangle curved arc beam |
| CN110524190A (en) * | 2019-07-15 | 2019-12-03 | 广州文冲船厂有限责任公司 | A kind of production method being bent square tube |
-
2020
- 2020-01-15 CN CN202010039184.8A patent/CN111195819A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04203147A (en) * | 1990-11-30 | 1992-07-23 | Sumitomo Light Metal Ind Ltd | Box girder of lengthy panel |
| CN202834460U (en) * | 2012-08-06 | 2013-03-27 | 玉柴桩工(常州)有限公司 | Bent pipe formed by welding multiple straight pipes |
| CN104060689A (en) * | 2014-04-30 | 2014-09-24 | 浙江东南网架股份有限公司 | Triangular section bending component, special molding bed and processing method thereof |
| CN205167534U (en) * | 2015-11-23 | 2016-04-20 | 许绝电工股份有限公司 | Fang guanmo utensil |
| CN110295709A (en) * | 2019-06-13 | 2019-10-01 | 中建钢构武汉有限公司 | Oblique quadrangle curved arc beam preparation process and oblique quadrangle curved arc beam |
| CN110524190A (en) * | 2019-07-15 | 2019-12-03 | 广州文冲船厂有限责任公司 | A kind of production method being bent square tube |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116713618A (en) * | 2023-07-13 | 2023-09-08 | 北京新风航天装备有限公司 | Composite forming method for welding aluminum alloy L-shaped rectangular pipe metal plate |
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Application publication date: 20200526 |