Thin-wall square pipe bending device

Abstract

The utility model relates to the technical field of steel pipe bending, and discloses a thin-wall square pipe bending device which comprises a workbench, the inner side of the workbench is fixedly connected with a base plate, the bottom of the base plate is fixedly connected with a servo motor, and the output end of the servo motor penetrates through the bottom of the base plate and is fixedly connected with a rotating disc. The outer wall of the rotary disc is rotatably connected to the inner side of the base plate, a first clamping plate is fixedly connected to the top of the base plate, a sliding column is fixedly connected to the top of the first clamping plate, a second clamping plate is slidably connected to the outer wall of the sliding column, and square tube raw materials are arranged between the first clamping plate and the second clamping plate. The top of the workbench is fixedly connected with a second supporting frame. According to the thin-wall square tube clamping device, square tube raw materials are clamped through the first clamping plate and the second slidable clamping plate, the second air cylinder drives the second clamping plate to move, the thin-wall square tube clamping device can adapt to thin-wall square tubes with different thicknesses, and the stable and adjustable clamping effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe bending, in particular to a thin-walled square pipe bending device. Background Art

[0002] In modern manufacturing, thin-walled square tubes are used more and more widely. In the field of automobile manufacturing, thin-walled square tubes are used to manufacture vehicle frames and seat frames. Their light weight and high strength help improve the fuel economy and overall performance of automobiles. In the aerospace field, thin-walled square tubes can be used to construct the internal structure of aircraft to meet the requirements of lightweight and high strength. With the development of these industries, the demand for thin-walled square tube bending processing is increasing, and more efficient and precise bending devices are needed to meet the needs of large-scale production.

[0003] After searching, the Chinese patent publication number is: CN219944231U, which discloses a thin-walled stainless steel pipe bending device, which relates to the technical field of steel pipe bending, including a support seat, an outer wall of one side of the support seat is provided with a rectangular opening, and the inner walls of both sides of the rectangular opening are fixedly connected to the same fixed seat, and the fixed seat and the inner wall of one side of the rectangular opening are fixedly connected to two sliding rods, and the outer walls of the two sliding rods are slidably connected to the same driving seat, and the outer wall of one side of the driving seat is provided with a groove, and the inner wall of the groove is slidably connected to the sliding seat, and two springs are fixedly connected to the inner wall of one side of the groove, and one end of the two springs is fixedly connected to the sliding seat, and the outer wall of one side of the sliding seat is fixedly connected to a positioning seat. The present application provides a positioning seat and an arc seat on the support seat, and the cooperation between the positioning seat and the arc seat facilitates the auxiliary positioning of the stainless steel pipe body. The arc seat and the driving seat increase the contact area with the outer wall of the steel pipe, thereby effectively avoiding the situation of local deformation of the steel pipe during bending. However, in actual use, the distance between the grooves between the fixed wheel and the movable wheel is fixed. When facing thin-walled square tubes of different thicknesses, this fixed structure cannot effectively adjust the clamping degree, causing the square tube to loosen during the bending process, affecting the bending accuracy and quality. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a thin-walled square tube bending device, which aims to improve the problem in the prior art that the distance between the groove between the fixed wheel and the movable wheel is fixed and the square tube cannot be effectively fixed.

[0005] Base comprises support, castor, and frame upper is provided with guide rail, and support and conveyer frames movable end contact site are provided with recoil spring, and castor is arranged on the pin of base bottom four, to carry mobile handler location.

[0006] Through the above technical solution: the outer wall of the turntable is rotatably connected to the inner side of the chassis. This stable rotation connection method ensures the stability of the turntable during the rotation process and avoids the deviation of the bending angle caused by the shaking of the turntable. The combination of clamping plate one and clamping plate two provides stable clamping for the square tube raw material. The clamping action of clamping plate two is driven by cylinder two, and the power of cylinder two is transmitted to clamping plate two through the connecting plate. It can be adaptively adjusted according to the thickness of the square tube, and can effectively cope with thin-walled square tubes of different thicknesses, ensuring that the square tube will not be displaced in the direction perpendicular to the bending plane during the bending process, thereby ensuring the shape accuracy of the bent tube.

[0007] As a further description of the above technical solution:

[0008] The clamping mechanism includes a two-way threaded rod, both ends of the two-way threaded rod are rotatably connected to the inner side of the extrusion block, the top of the two-way threaded rod is fixedly connected to a rotating wheel, the upper and middle part of the outer wall of the two-way threaded rod is threadedly connected to nut 1, and the lower and middle part of the outer wall of the two-way threaded rod is threadedly connected to nut 2, the outer walls of nut 1 and nut 2 are fixedly connected to a sliding rod, the outer walls of the two sliding rods are fixedly connected to a fixing plate, the outer wall of the extrusion block is provided with a sliding groove, and the outer walls of the two sliding rods are slidably connected to the inner side of the sliding groove.

[0009] Through the above technical solution: the combination of the bidirectional threaded rod, nut one, nut two, sliding rod and fixed plate, the clamping mechanism can adapt to thin-walled square tubes of different sizes. By rotating the wheel, the position of nut one and nut two on the bidirectional threaded rod can be changed, thereby driving the sliding rod to slide in the slide groove, adjusting the distance between the two fixed plates, and ensuring stability during extrusion of the extrusion block.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the servo motor is provided with a protective shell, and the top of the protective shell is fixedly connected to the bottom of the chassis.

[0012] Through the above technical solution: the protective shell can provide an effective physical barrier for the servo motor, block the impact force from the outside, reduce the risk of damage to the servo motor due to collision, and ensure its normal operation.

[0013] As a further description of the above technical solution:

[0014] The top of the workbench is fixedly connected to a support frame 1, the top of the support frame 1 is fixedly connected to a cylinder 1, and one end of the cylinder 1 is fixedly connected to the outer wall of the extrusion block.

[0015] Through the above technical solution: by installing cylinder one on support frame one and connecting cylinder one to the outer wall of the extrusion block, precise driving of the extrusion block can be achieved. Support frame one provides a stable installation base for cylinder one, ensuring that the position of cylinder one is fixed and the force is evenly distributed during operation.

[0016] As a further description of the above technical solution:

[0017] A controller is installed on the outer wall of the workbench, and the controller is electrically connected to cylinder 1, cylinder 2 and the servo motor respectively.

[0018] Through the above technical solution: the controller is electrically connected to cylinder one, cylinder two and the servo motor, thereby realizing automatic control of the entire pipe bending device.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the protective shell is provided with heat dissipation holes, and the four corners of the bottom of the workbench are fixedly connected with foot pads.

[0021] Through the above technical solution: the heat dissipation holes opened on the outer wall of the protective shell can ensure good ventilation and heat dissipation conditions for the motor during operation, so that the motor can operate within a suitable temperature range, and the foot pad provides stable support for the entire bending device.

[0022] As a further description of the above technical solution:

[0023] Both ends of the slide rail are fixedly connected with baffle 2, and the bottoms of the two baffles 2 are fixedly connected to the top of the workbench.

[0024] Through the above technical solution: the baffle 2 can effectively prevent the slider from falling off the slide rail during movement.

[0025] As a further description of the above technical solution:

[0026] The top of the sliding column is fixedly connected to the baffle plate 1, and the bottom of the baffle plate 1 is slidably connected to the top of the clamping plate 2.

[0027] Through the above technical solution: the baffle plate 1 can limit the sliding range of the clamping plate 2.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the utility model, the square tube raw material is clamped by a clamping plate 1 and a slidable clamping plate 2. The movement of the clamping plate 2 is driven by a cylinder 2, which can adapt to thin-walled square tubes of different thicknesses, achieves a stable and adjustable clamping effect, and effectively avoids the loosening or damage of the square tube during the bending process.

[0030] 2. In the utility model, the bidirectional threaded rod is rotated by rotating the wheel, so that the nut 1 and the nut 2 move toward each other, and then the fixed plate is driven to move closer to the middle to clamp the square tube. The design can be manually adjusted according to the size of the square tube, which can adapt to thin-walled square tubes of various sizes, prevent displacement when pushing the square tube, and ensure stability during extrusion by the extrusion block. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a right-side perspective diagram of the thin-walled square tube bending device proposed in the present invention;

[0032] Figure 2 This is a left perspective schematic diagram of the thin-walled square tube bending device proposed by the present invention;

[0033] Figure 3 This is a partial front view of the thin-walled square tube bending device proposed by the utility model;

[0034] Figure 4 This is a partial cross-sectional view of the thin-walled square tube bending device proposed in the utility model;

[0035] Figure 5 This is a structural schematic diagram of the clamping mechanism of the thin-walled square tube bending device proposed in the utility model.

[0036] Legend:

[0037] 1. Workbench; 2. Clamping mechanism; 201. Fixed plate; 202. Slide rod; 203. Bidirectional threaded rod; 204. Rotating wheel; 205. Nut 1; 206. Nut 2; 207. Slide; 3. Chassis; 4. Servo motor; 5. Turntable; 6. Slide column; 7. Clamping plate 1; 8. Clamping plate 2; 9. Baffle 1; 10. Protective shell; 11. Heat dissipation hole; 12. Cylinder 1; 13. Extrusion block; 14. Slider; 15. Slide rail; 16. Support frame 1; 17. Baffle 2; 18. Support frame 2; 19. Cylinder 2; 20. Connecting plate; 21. Foot pad; 22. Controller; 23. Square tube raw material. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Refer to the attached Figure 1 , Attachment Figure 3 and attached Figure 4 The utility model provides an embodiment: a thin-walled square tube bending device, including a workbench 1, a chassis 3 is fixedly connected to the inner side of the workbench 1, a servo motor 4 is fixedly connected to the bottom of the chassis 3, the output end of the servo motor 4 passes through the bottom of the chassis 3 and is fixedly connected to a turntable 5, the outer wall of the turntable 5 is rotatably connected to the inner side of the chassis 3, the top of the chassis 3 is fixedly connected to a clamping plate 7, the top of the clamping plate 7 is fixedly connected to a sliding column 6, the outer wall of the sliding column 6 is slidably connected to a clamping plate 2 8, the sliding column 6 ensures the stable sliding of the clamping plate 2 8, the clamping plate 1 7 on the chassis 3 and the slidable clamping plate 2 8 constitute a stable square tube clamping system, a square tube raw material 23 is arranged between the adjacent clamping plates 1 7 and the clamping plates 2 8, the top of the workbench 1 is fixedly connected to a support frame 2 18, the inner side of the support frame 2 18 is fixed It is fixedly connected to a cylinder 2 19, one end of which is fixedly connected to a connecting plate 20, the bottom of which is fixedly connected to the top of the clamping plate 2 8, the top of the workbench 1 is fixedly connected to a slide rail 15, the top of the slide rail 15 is slidably connected to a slider 14, the top of the slider 14 is fixedly connected to an extrusion block 13, and the outer wall of the extrusion block 13 is provided with a clamping mechanism 2; the top of the workbench 1 is fixedly connected to a support frame 16, the top of the support frame 16 is fixedly connected to a cylinder 12, one end of the cylinder 12 is fixedly connected to the outer wall of the extrusion block 13; a controller 22 is installed on the outer wall of the workbench 1, the controller 22 is electrically connected to the cylinder 12, the cylinder 2 19 and the servo motor 4 respectively, and the centralized control of the cylinder 12, the cylinder 2 19 and the servo motor 4 by the controller 22 greatly simplifies the operation process;

[0040] Specifically, the square tube raw material 23 can be effectively fixed between the clamping plate 1 7 and the clamping plate 2 8, the clamping plate 1 7 provides a stable bottom support, and the clamping plate 2 8 can be slidably matched with the clamping plate 1 7 through the sliding column 6, and the clamping action of the clamping plate 2 8 is driven by the cylinder 2 19, which can adapt to thin-walled square tubes of different thicknesses to ensure that the square tube will not be displaced in the vertical direction during the bending process. The extrusion block 13 slides on the slide rail 15 through the slider 14 and is driven by the cylinder 12, so that the extrusion block 13 can move flexibly on the workbench 1, and its position and stroke can be adjusted according to the bending requirements of the square tube. During the bending process, the extrusion force can be accurately applied to the appropriate part of the square tube to achieve gradual and stable bending of the square tube, thereby ensuring the shape quality and dimensional accuracy of the bent tube. The model of the servo motor 4 is SMA-PUC02D.

[0041] Refer to the attached Figure 4 The clamping mechanism 2 includes a bidirectional threaded rod 203, both ends of the bidirectional threaded rod 203 are rotatably connected to the inner side of the extrusion block 13, the top of the bidirectional threaded rod 203 is fixedly connected to a runner 204, the middle and upper part of the outer wall of the bidirectional threaded rod 203 is threadedly connected to a nut 1 205, and the middle and lower part of the outer wall of the bidirectional threaded rod 203 is threadedly connected to a nut 206, the outer walls of the nut 1 205 and the nut 2 206 are fixedly connected to the sliding rod 202, and the outer walls of the two sliding rods 202 are fixedly connected to the fixed plate 201, and the outer wall of the extrusion block 13 is provided with a sliding groove 207. The outer walls of the two sliding rods 202 are slidably connected to the inner side of the sliding groove 207. The distance between the two fixed plates 201 is adjusted by rotating the runner 204, which meets the clamping requirements of square tubes of various specifications.

[0042] Specifically, by utilizing the cooperation of the bidirectional threaded rod 203, nut 1 205 and nut 206, the position of the fixing plate 201 can be precisely adjusted. The operator can finely adjust the distance between the fixing plates 201 according to the actual size of the square tube raw material 23, so that the square tube is tightly clamped. During the tube bending process, the square tube is effectively prevented from generating lateral displacement due to force, thereby ensuring the accuracy and quality of the tube bending. The two fixing plates 201 clamp the square tube from both sides, and when the extrusion force is applied, the square tube can maintain the correct position and posture. The runner 204 is located at the top of the bidirectional threaded rod 203, which is easy to operate. The slide rod 202 slides in the slide groove 207 on the outer wall of the extrusion block 13, thereby ensuring the stability and linearity of the fixing plate 201 during movement.

[0043] Refer to the attached Figure 2 and attached Figure 3, the outer wall of the servo motor 4 is provided with a protective shell 10 to provide it with physical protection, and the top of the protective shell 10 is fixedly connected to the bottom of the chassis 3; the outer wall of the protective shell 10 is provided with heat dissipation holes 11, and the four corners of the bottom of the workbench 1 are fixedly connected with foot pads 21, which can make the workbench 1 be placed stably on the work plane, reducing the shaking and vibration of the device during operation; both ends of the slide rail 15 are fixedly connected with baffle 2 17, and the bottoms of the two baffles 2 17 are fixedly connected to the top of the workbench 1; the top of the slide column 6 is fixedly connected with baffle 1 9, and the bottom of baffle 1 9 is slidably connected to the top of the clamping plate 2 8, and baffle 1 9 can limit the sliding range of the clamping plate 2 8;

[0044] Specifically, the protective shell 10 provides physical protection for the servo motor 4. The heat dissipation holes 11 on the protective shell 10 help to dissipate heat of the servo motor 4 during operation. The foot pad 21 provides stable support for the entire device. The baffles 21 at both ends of the slide rail 15 can effectively prevent the slider 14 from escaping from the slide rail 15 during movement. During the pipe bending operation, the extrusion block 13 slides on the slide rail 15 through the slider 14 to achieve the extrusion of the thin-walled square tube. If there is no baffle 217, the slider 14 will detach from the slide rail 15 due to an accident, causing device failure. Baffle 217 ensures the safe movement of the slider 14 on the slide rail 15 and maintains the normal operation of the pipe bending device. The baffle 19 on the top of the slide column 6 can limit the sliding range of the clamping plate 28. In the process of driving the clamping plate 28 to slide up and down along the slide column 6 by the cylinder 219 to clamp the square tube raw material 23, the baffle 19 can prevent the clamping plate 28 from detaching from the slide column 6 due to excessive movement, thereby ensuring the reliability and stability of the clamping system and ensuring that the square tube can be stably clamped.

[0045] Working principle: First, place the square tube material 23 on the clamping plate 7 on the top of the chassis 3, and start the cylinder 2 19 through the controller 22 to drive the connecting plate 20 to move downward. Since the bottom of the connecting plate 20 is connected to the top of the clamping plate 2 8, the clamping plate 2 8 slides downward along the slide column 6 and cooperates with the clamping plate 7 to clamp the square tube material 23. Then, the squeezing block 13 connected to it is pushed to apply pressure to the square tube material 23 by controlling the cylinder 12. Finally, the servo motor 4 is started to drive the turntable 5 to rotate inside the chassis 3. The rotation of the turntable 5 will cause the square tube material 23 clamped between the clamping plate 7 and the clamping plate 2 8 to rotate accordingly. Under the push of the cylinder 12, the squeezing block 13 applies squeezing force to the square tube along the slide rail 15. Under the combined action of the rotation of the rotating disc 5 and the squeezing of the squeezing block 13, the square tube gradually bends around the rotating disc 5 to form the desired curved tube shape. In the initial state, the two fixed plates 201 are at relatively far positions. When it is necessary to clamp the thin-walled square tube, the rotating wheel 204 can be rotated according to the size of the square tube material 23. The rotating wheel 204 drives the bidirectional threaded rod 203 to rotate, and the nut 1 205 and the nut 206 will move toward each other on the bidirectional threaded rod 203. As the nut 1 205 and the nut 206 move, the sliding rod 202 connected thereto will slide in the sliding groove 207, driving the fixed plates 201 to move toward the middle. When the distance between the two fixed plates 201 is adjusted to adapt to the square tube material 23, the rotation of the rotating wheel 204 is stopped.

[0046] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A thin-walled square tube bending device, comprising a workbench (1), characterized in that: The inner side of the workbench (1) is fixedly connected to a chassis (3), the bottom of the chassis (3) is fixedly connected to a servo motor (4), the output end of the servo motor (4) passes through the bottom of the chassis (3) and is fixedly connected to a turntable (5), the outer wall of the turntable (5) is rotatably connected to the inner side of the chassis (3), the top of the chassis (3) is fixedly connected to a clamping plate 1 (7), the top of the clamping plate 1 (7) is fixedly connected to a slide column (6), the outer wall of the slide column (6) is slidably connected to a clamping plate 2 (8), and a square tube raw material is provided between the adjacent clamping plates 1 (7) and 2 (8). (23), the top of the workbench (1) is fixedly connected to a support frame 2 (18), the inner side of the support frame 2 (18) is fixedly connected to a cylinder 2 (19), one end of the cylinder 2 (19) is fixedly connected to a connecting plate (20), the bottom of the connecting plate (20) is fixedly connected to the top of the clamping plate 2 (8), the top of the workbench (1) is fixedly connected to a slide rail (15), the top of the slide rail (15) is slidably connected to a slider (14), the top of the slider (14) is fixedly connected to an extrusion block (13), and the outer wall of the extrusion block (13) is provided with a clamping mechanism (2).

2. The thin-walled square tube bending device according to claim 1, characterized in that: The clamping mechanism (2) includes a bidirectional threaded rod (203), both ends of the bidirectional threaded rod (203) are rotatably connected to the inner side of the extrusion block (13), the top of the bidirectional threaded rod (203) is fixedly connected to a rotating wheel (204), the upper middle portion of the outer wall of the bidirectional threaded rod (203) is threadedly connected to a nut 1 (205), the lower middle portion of the outer wall of the bidirectional threaded rod (203) is threadedly connected to a nut 2 (206), the outer walls of the nut 1 (205) and the nut 2 (206) are fixedly connected to a sliding rod (202), the outer walls of the two sliding rods (202) are fixedly connected to a fixed plate (201), the outer wall of the extrusion block (13) is provided with a sliding groove (207), and the outer walls of the two sliding rods (202) are slidably connected to the inner side of the sliding groove (207).

3. The thin-walled square tube bending device according to claim 1, characterized in that: The outer wall of the servo motor (4) is provided with a protective shell (10), and the top of the protective shell (10) is fixedly connected to the bottom of the chassis (3).

4. The thin-walled square tube bending device according to claim 1, characterized in that: The top of the workbench (1) is fixedly connected to a support frame 1 (16), the top of the support frame 1 (16) is fixedly connected to a cylinder 1 (12), and one end of the cylinder 1 (12) is fixedly connected to the outer wall of the extrusion block (13).

5. The thin-walled square tube bending device according to claim 1, characterized in that: A controller (22) is installed on the outer wall of the workbench (1), and the controller (22) is electrically connected to cylinder 1 (12), cylinder 2 (19) and the servo motor (4) respectively.

6. The thin-walled square tube bending device according to claim 3, characterized in that: The outer wall of the protective shell (10) is provided with heat dissipation holes (11), and foot pads (21) are fixedly connected to the four corners of the bottom of the workbench (1).

7. The thin-walled square tube bending device according to claim 1, characterized in that: Both ends of the slide rail (15) are fixedly connected to baffle 2 (17), and the bottoms of the two baffles 2 (17) are fixedly connected to the top of the workbench (1).

8. The thin-walled square tube bending device according to claim 1, characterized in that: The top of the sliding column (6) is fixedly connected to a baffle plate 1 (9), and the bottom of the baffle plate 1 (9) is slidably connected to the top of the clamping plate 2 (8).

Images