CN211218168U - Cold bending device of thin-wall U-shaped steel pipe - Google Patents
Cold bending device of thin-wall U-shaped steel pipe Download PDFInfo
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- CN211218168U CN211218168U CN201922074620.0U CN201922074620U CN211218168U CN 211218168 U CN211218168 U CN 211218168U CN 201922074620 U CN201922074620 U CN 201922074620U CN 211218168 U CN211218168 U CN 211218168U
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Abstract
The utility model discloses a cold bending device of a thin-wall U-shaped steel pipe, which comprises a bottom plate and two groups of pipe bending mechanisms; the pipe bending mechanism comprises an inner side pressing wheel, an outer side pressing wheel and a rotating rod; the inner side pinch roller is fixed on a part to be bent of the thin-wall steel pipe on the bottom plate; the outer edge of the inner side pinch roller is a circular working surface with the radius matched with the bending radius of the part to be bent of the thin-wall steel pipe; the center of the circle of the outer edge of the inner side pinch roller is connected with a central shaft, an opening at one end of the rotating rod is connected to the central shaft, and the middle part of the rotating rod is connected with the outer side pinch roller through a rotating shaft; when the rotating rod rotates around the central shaft, the outer edge of the outer side pressing wheel and the outer edge of the inner side pressing wheel always keep a bending gap matched with the diameter of the thin-wall steel pipe. The utility model discloses a clod wash device can realize buckling the quick U type of thin wall steel pipe, satisfies the mass production requirement. In the bending process, the thin-wall steel pipe can not be flattened, cracked and the like, and the product quality is ensured.
Description
Technical Field
The utility model relates to a swan neck system, in particular to clod wash device of thin wall U type steel pipe.
Background
In engineering, a tubular part with a bending structure is often needed, and the pipe bending operation of the tubular part is mostly realized by a pipe bending machine. The existing pipe bender has the disadvantages of complex structure and high manufacturing cost. When the pipe bender is used for bending the thin-wall steel pipe, the pipe body at the bending deformation part is easy to be flattened and even cracked, and the product quality is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving that traditional bending machine structure is complicated, the cost of manufacture is high to when carrying out the return bend operation to the thin wall steel pipe, easily take place phenomenons such as flat, crackle, seriously influence product quality, provide a cold bending device of thin wall U type steel pipe for this reason.
The utility model aims at realizing through the following technical scheme:
the utility model relates to a cold bending device of a thin-wall U-shaped steel pipe, which comprises a bottom plate and two groups of pipe bending mechanisms;
the pipe bending mechanism comprises an inner side pressing wheel, an outer side pressing wheel and a rotating rod; the inner side pinch roller is fixed on a part to be bent of the thin-wall steel pipe on the bottom plate; the outer edge of the inner side pinch roller is a circular working surface with the radius matched with the bending radius of the part to be bent of the thin-wall steel pipe; the center of the circle of the outer edge of the inner side pinch roller is connected with a central shaft, an opening at one end of the rotating rod is connected to the central shaft, and the middle part of the rotating rod is connected with the outer side pinch roller through a rotating shaft; when the rotating rod rotates around the central shaft, the outer edge of the outer side pressing wheel and the outer edge of the inner side pressing wheel always keep a bending gap matched with the diameter of the thin-wall steel pipe.
And arc-shaped grooves with sections matched with the outer diameter of the thin-wall steel pipe are formed in the side walls of the inner side pinch roller and the outer side pinch roller.
The cold bending device also comprises a pressing mechanism; the pressing mechanism comprises a pressing plate and a pressing bolt, wherein the plate surface of the pressing plate is provided with a bolt through hole, the pressing bolt is in threaded connection with the bottom plate, the pressing plate is inserted into the pressing bolt through the bolt through hole, and the pressing plate presses the part, which is not bent, of the thin-wall steel pipe downwards by screwing a nut downwards into the pressing bolt.
Working process
When the thin-wall steel pipe is bent, the rotating rods of the two groups of pipe bending mechanisms are rotated to the highest point upwards, the thin-wall steel pipe which is not bent penetrates through the bending gap between the outer edge of the outer side pinch roller and the outer edge of the inner side pinch roller in the two groups of pipe bending mechanisms, the rotating rods of the two groups of pipe bending mechanisms are rotated outwards, and the outer edge of the outer side pinch roller and the outer edge of the inner side pinch roller bend the thin-wall steel pipe simultaneously in the rotating process of the rotating rods, so that the thin-wall steel pipe is bent into a U-shaped structure.
Advantageous effects
The utility model discloses a clod wash device, simple structure, convenient operation can realize buckling to the quick U type of thin wall steel pipe, satisfies mass production requirement. In the bending process, the thin-wall steel pipe can not be flattened, cracked and the like, and the product quality is ensured.
Drawings
FIG. 1 is a schematic structural view of the cold bending apparatus of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
in the figure, 1-base plate; 2-a pressing mechanism; 3-rotating the rod; 4-outer pinch roller; 5-a rotating shaft; 6-central axis; 7-inner press wheel.
Detailed Description
The invention will be further described with reference to the accompanying drawings and examples.
Examples
As shown in fig. 1 and 2, a cold bending device for a thin-walled U-shaped steel pipe comprises a bottom plate 1, a pressing mechanism 2 arranged on the bottom plate 1, and two sets of pipe bending mechanisms;
the pressing mechanism 2 comprises a pressing plate and a pressing bolt, wherein the plate surface of the pressing plate is provided with a bolt through hole, the pressing bolt is in threaded connection with the bottom plate 1, the pressing plate is inserted into the pressing bolt through the bolt through hole, and a nut is screwed downwards into the pressing bolt, so that the pressing plate presses the part, which is not bent, of the thin-wall steel pipe downwards;
as shown in fig. 2, the tube bending mechanism includes an inner pinch roller 7, an outer pinch roller 4 and a rotating rod 3; the inner side pinch roller 7 is fixed on a part to be bent of the thin-wall steel pipe on the bottom plate 1; the outer edge of the inner side pinch roller 7 is a circular working surface with the radius matched with the bending radius of the part to be bent of the thin-wall steel pipe; the center of the circle of the outer edge of the inner side pinch roller 7 is connected with a central shaft 6, an opening at one end of the rotating rod 3 is connected on the central shaft 6, and the middle part of the rotating rod 3 is connected with the outer side pinch roller 4 through a rotating shaft 5; when the rotating rod 3 rotates around the central shaft 6, the outer edge of the outer side pinch roller 4 and the outer edge of the inner side pinch roller 7 always keep a bending gap matched with the diameter of the thin-wall steel pipe.
The side walls of the inner side pinch roller 7 and the outer side pinch roller 4 are provided with arc grooves with sections matched with the outer diameter of the thin-wall steel pipe.
When the thin-wall steel pipe is bent, firstly, the rotating rods 3 of the two groups of pipe bending mechanisms are rotated upwards to the highest point, then the thin-wall steel pipe which is not bent passes through the bending gap between the outer edge of the outer side pressing wheel 4 and the outer edge of the inner side pressing wheel 7 in the two groups of pipe bending mechanisms, then the rotating rods 3 of the two groups of pipe bending mechanisms are rotated outwards, and in the rotating process of the rotating rods 3, the outer edge of the outer side pressing wheel 4 and the outer edge of the inner side pressing wheel 7 bend the thin-wall steel pipe simultaneously, so that the thin-wall steel pipe is bent into a U.
Claims (3)
1. The cold bending device for the thin-wall U-shaped steel pipe is characterized in that: the pipe bending machine comprises a bottom plate and two groups of pipe bending mechanisms arranged on the bottom plate;
the pipe bending mechanism comprises an inner side pressing wheel, an outer side pressing wheel and a rotating rod; the inner side pinch roller is fixed on a part to be bent of the thin-wall steel pipe on the bottom plate; the outer edge of the inner side pinch roller is a circular working surface with the radius matched with the bending radius of the part to be bent of the thin-wall steel pipe; the center of the circle of the outer edge of the inner side pinch roller is connected with a central shaft, an opening at one end of the rotating rod is connected to the central shaft, and the middle part of the rotating rod is connected with the outer side pinch roller through a rotating shaft; when the rotating rod rotates around the central shaft, the outer edge of the outer side pressing wheel and the outer edge of the inner side pressing wheel always keep a bending gap matched with the diameter of the thin-wall steel pipe.
2. The cold bending apparatus for thin-walled U-shaped steel pipes according to claim 1, wherein: and arc-shaped grooves with sections matched with the outer diameter of the thin-wall steel pipe are formed in the side walls of the inner side pinch roller and the outer side pinch roller.
3. A cold-bending apparatus for thin-walled U-shaped steel pipes as claimed in claim 1 or 2, wherein: the device also comprises a pressing mechanism; the pressing mechanism comprises a pressing plate and a pressing bolt, wherein the plate surface of the pressing plate is provided with a bolt through hole, the pressing bolt is in threaded connection with the bottom plate, the pressing plate is inserted into the pressing bolt through the bolt through hole, and the pressing plate presses the part, which is not bent, of the thin-wall steel pipe downwards by screwing a nut downwards into the pressing bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922074620.0U CN211218168U (en) | 2019-11-27 | 2019-11-27 | Cold bending device of thin-wall U-shaped steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922074620.0U CN211218168U (en) | 2019-11-27 | 2019-11-27 | Cold bending device of thin-wall U-shaped steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211218168U true CN211218168U (en) | 2020-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922074620.0U Active CN211218168U (en) | 2019-11-27 | 2019-11-27 | Cold bending device of thin-wall U-shaped steel pipe |
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| CN (1) | CN211218168U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114378153A (en) * | 2021-12-22 | 2022-04-22 | 中船重工西安东仪科工集团有限公司 | Thin-wall steel pipe cold bending die and cold bending method |
-
2019
- 2019-11-27 CN CN201922074620.0U patent/CN211218168U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114378153A (en) * | 2021-12-22 | 2022-04-22 | 中船重工西安东仪科工集团有限公司 | Thin-wall steel pipe cold bending die and cold bending method |
| CN114378153B (en) * | 2021-12-22 | 2023-11-28 | 中船重工西安东仪科工集团有限公司 | Cold bending die and cold bending method for thin-wall steel pipe |
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