Bending forming device for steel pipe

Abstract

The utility model provides a bending forming device for a steel pipe, which relates to the technical field of steel pipe machining and comprises a machining table body, a bending die and a fixing clamp are arranged at the top of the machining table body, a positioning component is arranged on the side face of the fixing clamp and comprises a transmission rod, and one end of the transmission rod is fixedly connected with a first supporting plate. A fixing plate is arranged on the side face of the first supporting plate, a first connecting rod is rotationally connected to the side face of the fixing plate, a second connecting rod is rotationally connected to the side face of the end, away from the fixing plate, of the first connecting rod, a flexible supporting plate is arranged on the side face of the first connecting rod, and a driving module is arranged at one end of a transmission rod. Firstly, a steel pipe needing to be bent is placed in the middle of a positioning assembly, a driving module arranged at one end of a transmission rod is started, so that the transmission rod can be driven to rotate anticlockwise, and when the transmission rod rotates anticlockwise, a second connecting rod can be driven to move through a first supporting plate.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe processing, in particular to a bending and forming device for steel pipes. Background Art

[0002] The main function of the bending and forming device for steel pipes is to bend and process steel pipes according to specific angles and shapes. It can precisely control the degree of bending, ensure the bending quality and dimensional accuracy of steel pipes, improve production efficiency, meet the needs of various projects for steel pipes of various bending shapes, and is widely used in fields such as construction and machinery manufacturing.

[0003] In the prior art, the utility model with the publication number CN219093258U provides a stainless steel pipe bending and forming device, including a bottom plate and a bending disc installed on the top of the bottom plate through an adjusting member. A bending groove is formed on the surface of the bending disc. A steel pipe body is fixedly installed on the top of the bottom plate through a limiting member. One side of the steel pipe body is attached to the bending groove. Four electric push rods drive the upper base to move to adapt to the clamping and fixing of steel pipes with different diameters within a certain range. By driving the upper base to move through four electric push rods to adapt to the clamping and fixing of steel pipes with different diameters within a certain range, rotating the threaded rod drives the adjusting block on the surface to move in the groove body, and the adjusting block drives the bending disc at the top to move and fit the surface of the steel pipe body, so as to adapt to different steel pipe bodies for bending.

[0004] This patent solves the problem that there is no arc-shaped mold for fitting during the bending process of stainless steel pipes, resulting in the unappealing appearance of the bent steel pipe products. Through the cooperation of the bending disc and the base, the bending disc can be attached to the outer surface of the steel pipe during the bending process, thereby ensuring the relatively appealing appearance of the bent products.

[0005] However, in the actual use process, the above patent still has the following deficiencies: During the bending process of steel pipes, due to the certain rigidity and elasticity of the steel pipes themselves, during the bending operation, this characteristic will cause the steel pipes to shake during the processing, resulting in uneven force distribution in local areas, and further causing deformation at the bending points of the steel pipes, affecting the processing quality of the steel pipes. Therefore, this application provides a bending and forming device for steel pipes to meet the requirements. Summary of the Utility Model

[0006] The purpose of the utility model is to solve the deficiencies existing in the prior art and provide a bending and forming device for steel pipes.

[0007] To achieve the above purpose, the utility model adopts the following technical scheme: A bending and forming device for steel pipes, including a processing table body, a bending mold and a fixing fixture are arranged on the top of the processing table body, and a positioning component is arranged on the side of the fixing fixture;

[0008] The positioning component includes a transmission rod, one end of the transmission rod is fixedly connected with a first support plate, a fixed plate is arranged on the side surface of the first support plate, a first connecting rod is rotatably connected to the side surface of the fixed plate, a second connecting rod is rotatably connected to the side surface of the first connecting rod away from the fixed plate, and a first connecting rod is fixedly connected to the side surface of the second connecting rod away from the first connecting rod.

[0009] As a preferred implementation manner, a first sliding groove is formed in the side surface of the first support plate, and a sliding rod is slidably connected to the inner cavity of the first sliding groove.

[0010] The technical effect of adopting the above technical solution is that: through the cooperation of the first sliding groove and the sliding rod, the effect of driving the fixed fixture to displace can be achieved.

[0011] As a preferred implementation manner, one end of the sliding rod is fixedly connected with a telescopic rod.

[0012] The technical effect of adopting the above technical solution is that: by arranging the telescopic rod, the upward force can be offset when the sliding rod drives the fixed fixture to displace, and further the effect of translating the fixed fixture can be achieved.

[0013] As a preferred implementation manner, a clamping component is arranged at the bottom of the bending die, the clamping component includes a second support plate, a third support plate is movably connected to the side surface of the second support plate, and mounting boxes are fixedly connected to the bottoms of the second support plate and the third support plate.

[0014] The technical effect of adopting the above technical solution is that: by arranging the second support plate and the third support plate, the positioning component and the fixed fixture can be supported.

[0015] Compared with the prior art, the advantages and positive effects of the present utility model are that

[0016] A flexible support plate is arranged on the side surface of the first connecting rod, and a driving module is arranged at one end of the transmission rod. During use, first, the steel pipe to be bent is placed in the middle of the positioning component, and by starting the driving module arranged at one end of the transmission rod, the transmission rod can be driven to rotate counterclockwise. When the transmission rod rotates counterclockwise, the second connecting rod can be driven to move through the first support plate. When the second connecting rod moves, the first connecting rod can be driven to move. Through the cooperation of the first connecting rod and the second connecting rod, the effect of driving the first connecting rod to expand outward from the first support plate can be achieved. When the first connecting rod expands to a certain position, the flexible support plate arranged on the side surface of the first connecting rod contacts the inner wall of the steel pipe, so that the position of the steel pipe can be positioned and initially clamped, and further the outer surface of the steel pipe can be ensured to be attached to the side surface of the inner wall of the bending die, avoiding the position of the steel pipe shifting during the processing and causing damage. Brief Description of the Drawings

[0017] Figure 1 Schematic perspective view of a bending and forming device for steel pipes provided by the present utility model;

[0018] Figure 2 Schematic connection view of a processing table of a bending and forming device for steel pipes provided by the present utility model;

[0019] Figure 3 Schematic connection view of a positioning assembly of a bending and forming device for steel pipes provided by the present utility model;

[0020] Figure 4 Schematic cross-sectional view of a positioning assembly of a bending and forming device for steel pipes provided by the present utility model;

[0021] Figure 5 Schematic cross-sectional view of a clamping assembly of a bending and forming device for steel pipes provided by the present utility model.

[0022] Legend Explanation:

[0023] 1. Processing table body; 11. Bending die; 12. Fixed fixture;

[0024] 2. Positioning assembly; 21. Transmission rod; 22. First support plate; 23. Fixed plate; 24. First connecting rod; 25. Second connecting rod; 26. First connecting bar; 27. First chute; 28. Slide bar; 29. Expansion rod;

[0025] 3. Clamping assembly; 31. Second support plate; 32. Third support plate; 33. Installation box; 34. Fixed block; 35. Touching rod; 36. Second connecting bar; 37. Slide block; 38. Second chute; 39. Elastic sheet. Detailed Description of the Preferred Embodiment

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] As Figure 1 - Figure 5 shown, this embodiment provides a technical solution: a bending and forming device for steel pipes, including a processing table body 1, a bending die 11 and a fixed fixture 12 are arranged on the top of the processing table body 1, and a positioning assembly 2 is arranged on the side of the fixed fixture 12;

[0028] The positioning component 2 includes a transmission rod 21. One end of the transmission rod 21 is fixedly connected to a first support plate 22. A fixing plate 23 is arranged on the side surface of the first support plate 22. A first connecting rod 24 is rotatably connected to the side surface of the fixing plate 23. A second connecting rod 25 is rotatably connected to the side surface of the first connecting rod 24 away from the fixing plate 23. A first connecting rod 26 is fixedly connected to the side surface of the second connecting rod 25 away from the first connecting rod 24. A first sliding groove 27 is formed in the side surface of the first support plate 22. A sliding rod 28 is slidably connected to the inner cavity of the first sliding groove 27. One end of the sliding rod 28 is fixedly connected to a telescopic rod 29. A flexible support plate is arranged on the side surface of the first connecting rod 26. A driving module is arranged at one end of the transmission rod 21. During use, first, the steel pipe to be bent is placed in the middle of the positioning component 2. By starting the driving module arranged at one end of the transmission rod 21, the transmission rod 21 can be made to rotate counterclockwise. When the transmission rod 21 rotates counterclockwise, the second connecting rod 25 can be driven to move through the first support plate 22. When the second connecting rod 25 moves, the first connecting rod 24 can be driven to rotate counterclockwise, so as to drive the first connecting rod 26 to move outside the first support plate 22. When the first connecting rod 26 expands to a certain position, the flexible support plate arranged on the side surface of the first connecting rod 26 contacts the inner wall of the steel pipe, so as to position and initially clamp the position of the steel pipe, and further ensure that the outer surface of the steel pipe fits the side surface of the inner wall of the bending die 11, and at the same time, the position of the steel pipe is fixed for the second time to prevent the position of the steel pipe from shifting during the processing, resulting in damage. While the first support plate 22 rotates counterclockwise, the sliding rod 28 can be driven to move into the inner cavity of the first support plate 22 through the first sliding groove 27. When the sliding rod 28 moves into the inner cavity of the first support plate 22, the fixed clamp 12 can be driven to fit the side surface of the steel pipe. During the operation of the fixed clamp 12, the telescopic rod 29 expands and contracts, so as to offset the upward movement force of the fixed clamp 12, and further ensure that the fixed clamp 12 only moves translationally, preventing the position from shifting during the operation.

[0029] Furthermore, as Figure 5As shown in the figure: A clamping component 3 is arranged at the bottom of the bending die 11. The clamping component 3 includes a second support plate 31. The side of the second support plate 31 is movably connected to a third support plate 32. Installation boxes 33 are fixedly connected to the bottoms of both the second support plate 31 and the third support plate 32. A fixing block 34 is rotatably connected to the inner cavity of the installation box 33. A touch rod 35 and a second connecting rod 36 are fixedly connected to the top of the fixing block 34. A motor is arranged at the bottom of the second support plate 31. By starting the motor, the second support plate 31 can be made to drive the third support plate 32 to rotate clockwise. A stop block is arranged at the bottom of the inner cavity of the processing table body 1. When the second support plate 31 rotates to a certain position, the stop block contacts the side of the touch rod 35, so that the touch rod 35 can be made to flip clockwise. When the touch rod 35 flips clockwise, the fixing block 34 can be driven to rotate clockwise, and then the second connecting rod 36 can be driven to move. Through the cooperation of a slider 37 and a second chute 38, the second support plate 31 and the third support plate 32 can be separated, and then the effect of segmentally bending the steel pipe can be achieved, avoiding the problem that the final bending effect is not good due to the excessive rebound force of the steel pipe during bending.

[0030] During use, after the secondary bending is completed, when the slider 37 disengages from the inner cavity of the second chute 38, its position is not fixed, resulting in misalignment at the docking position during the reset after the bending work is completed, so that stable reset cannot be achieved. As Figure 5 shown in the figure: In this solution, a second chute 38 is opened at the top of the fixing block 34. A slider 37 is fixedly connected to the bottom of the end of the second connecting rod 36 far from the fixing block 34. One end of the slider 37 extends into the inner cavity of the second chute 38, and one end of the slider 37 is slidably connected to the inner cavity of the second chute 38. One side of the top of the fixing block 34 is fixedly connected to an elastic piece 39. The end of the elastic piece 39 far from the fixing block 34 is fixedly connected to the side of the inner wall of the elastic piece 39. When the fixing block 34 rotates clockwise, the elastic piece 39 is stretched. After the separation action is completed, the elastic piece 39 releases stress, so that the fixing block 34 can be driven to rotate counterclockwise, and then the effect of driving the second connecting rod 36 to reset can be achieved, ensuring that the positions are consistent during docking after the bending work is completed, and avoiding misalignment during reset, resulting in damage.

[0031] Working principle:

[0032] As Figures 1-5 shown in the figure:

[0033] During use: First, place the steel pipe to be bent on the middle of the positioning component 2. By starting the drive module arranged at one end of the transmission rod 21, the transmission rod 21 can be driven to rotate counterclockwise. When the transmission rod 21 rotates counterclockwise, the second connecting rod 25 can be driven to move through the first support plate 22. When the second connecting rod 25 moves, the first connecting rod 24 can be driven to rotate counterclockwise, so that the first connecting rod 26 can be driven to move outside the first support plate 22. When the first connecting rod 26 expands to a certain position, the flexible support plate arranged on the side of the first connecting rod 26 contacts the inner wall of the steel pipe, so that the position of the steel pipe can be positioned and initially clamped. While the first support plate 22 rotates counterclockwise, the slide bar 28 can be driven to move into the inner cavity of the first support plate 22 through the first chute 27. When the slide bar 28 moves into the inner cavity of the first support plate 22, the fixed clamp 12 can be driven to fit against the side of the steel pipe. After the fixation is completed, by starting the motor arranged at the bottom of the second support plate 31, the output shaft of the motor rotates forward, so that the second support plate 31 can be driven to rotate clockwise, and then the third support plate 32 can be driven to rotate clockwise. When the second support plate 31 rotates to a certain position, the stop block arranged at the bottom of the inner cavity of the processing table body 1 contacts the side of the touch rod 35, so that the touch rod 35 can be driven to rotate clockwise, and then the second connecting rod 36 can be driven to rotate clockwise through the fixed block 34. Through the cooperation of the slider 37 and the second chute 38, the second support plate 31 and the third support plate 32 can be separated, and then the effect of segmental bending of the steel pipe can be achieved, and finally the bending work of the steel pipe is completed.

[0034] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A bending and forming device for steel pipes, comprising a processing table body (1), characterized in that: A bending mold (11) and a fixing fixture (12) are arranged on the top of the processing table body (1), and a positioning component (2) is arranged on the side of the fixing fixture (12); The positioning assembly (2) comprises a transmission rod (21), one end of the transmission rod (21) is fixedly connected to a first support plate (22), a side of the first support plate (22) is provided with a fixing plate (23), the side of the fixing plate (23) is rotatably connected to a first connecting rod (24), the side of the first connecting rod (24) away from one end of the fixing plate (23) is rotatably connected to a second connecting rod (25), and the side of the second connecting rod (25) away from one end of the first connecting rod (24) is fixedly connected to a first connecting rod (26).

2. A steel pipe bending and forming device according to claim 1, characterized in that: A first sliding groove (27) is provided on the side surface of the first supporting plate (22), and a sliding rod (28) is slidably connected to the inner cavity of the first sliding groove (27).

3. A steel pipe bending and forming device according to claim 2, characterized in that: One end of the sliding rod (28) is fixedly connected to a telescopic rod (29).

4. A steel pipe bending and forming device according to claim 1, characterized in that: A clamping assembly (3) is provided at the bottom of the bending mold (11), and the clamping assembly (3) comprises a second support plate (31), a side of the second support plate (31) is movably connected to a third support plate (32), and the bottoms of the second support plate (31) and the third support plate (32) are both fixedly connected to a mounting box (33).

5. A steel pipe bending and forming device according to claim 4, characterized in that: The inner cavity of the installation box (33) is rotatably connected to a fixing block (34), and the top of the fixing block (34) is fixedly connected to a touch rod (35) and a second connecting rod (36).

6. A steel pipe bending and forming device according to claim 5, characterized in that: A second slide groove (38) is provided on the top of the fixed block (34); a slider (37) is fixedly connected to the bottom of one end of the second connecting rod (36) away from the fixed block (34); one end of the slider (37) extends to the inner cavity of the second slide groove (38); one end of the slider (37) is slidably connected to the inner cavity of the second slide groove (38); a spring sheet (39) is fixedly connected to one side of the top of the fixed block (34); one end of the spring sheet (39) away from the fixed block (34) is fixedly connected to the side of the inner wall of the spring sheet (39).

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