A special-shaped steel pipe forming tool for automobile anti-collision beams

Abstract

The application relates to the technical field of anti-collision beam processing, and discloses a special-shaped steel pipe forming tool for an automobile anti-collision beam, which comprises a bottom plate, the top of the bottom plate is fixedly connected with an annular base, and a positioning mechanism is arranged on the annular base. Through the design of the positioning mechanism, the positioning plate can be extruded on the outer side of the steel pipe by controlling the movement of the trapezoidal extrusion block and extruding the inclined surface on the trapezoidal auxiliary plate. When positioning, the steel pipe is extruded and fixed up and down in the inner side of the side edge cylinder and is extruded and fixed in the front and back positions in the inner side of the middle cylinder, so that the steel pipe is fixed in four directions, the stability is better, the spacing between the side edge cylinder and the middle cylinder can be freely adjusted, different length steel pipes can be matched and fixed, and finally when the steel pipe is bent, if it needs to be stretched and bent in different directions, the side edge cylinder can be controlled to rotate, so that the stretching and bending directions are adjusted, the adjusting process is flexible, and the processing efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of anti-collision beam processing technology, and in particular to a tooling for forming irregular steel tubes for automotive anti-collision beams. Background Technology

[0002] A car crash beam is a device used to absorb collision energy when a vehicle is involved in a collision. It consists of a main beam, an energy-absorbing box, and a mounting plate that connects to the car. Both the main beam and the energy-absorbing box can effectively absorb collision energy when a vehicle is involved in a low-speed collision, minimizing the damage to the longitudinal beams of the vehicle body. The main beam of a steel crash beam is generally made by bending and shaping steel pipes before assembly.

[0003] Patent publication number CN222447819U discloses a bending forming fixture for a vehicle front anti-collision beam, including an upper product clamping mechanism, a bracket, a rotating shaft in the middle of the bracket, the rotating shaft being coaxially fixed with a swing block, a swing block sliding seat fixed on the bracket above the rotating shaft, and a return tension spring connecting the two sides of the swing block sliding seat to the corresponding lower swing block. A lower pressure plate is fixed on the bottom surface of the swing block. A product forming lower mold, matched with the upper product clamping mechanism, is an arc-shaped structure and is installed on a mold fixing seat. The product is fixedly mounted on the surface of the upper product clamping mechanism. This invention solves the problems in the prior art where, during processing, the lack of positioning or clamping mechanisms in the middle and sides of the product leads to deformation of the middle of the product being prone to concavity or convexity, and asymmetrical bending deformation of the processed parts on both sides of the product, resulting in product defects. It also addresses the problem of poor adjustability caused by the inability to adjust the processing details of the clamping block.

[0004] While the above devices improve stability and prevent dents during bending by pressing and fixing different parts of the product during the bending and forming process of the anti-collision beam, their overall functionality is relatively limited. During the bending and forming of the anti-collision beam, it is often necessary to bend and stretch it at multiple angles, positions, and directions according to assembly requirements. That is, after a single fixation, when it is necessary to perform multi-position irregular bending processing, the above devices can only repeatedly disassemble and replace a series of adaptable parts such as molds and upper pressure plates, resulting in low processing efficiency. Therefore, a special steel tube forming fixture for automotive anti-collision beams is proposed to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a tooling for forming irregularly shaped steel tubes for automotive anti-collision beams.

[0006] The present invention provides a special-shaped steel tube forming tooling for automobile anti-collision beams, which adopts the following technical solution:

[0007] A tooling for forming irregular steel tubes for automotive anti-collision beams includes a base plate, an annular base fixedly connected to the top of the base plate, and a positioning mechanism provided on the annular base;

[0008] The positioning mechanism includes a central cylinder and two side cylinders, which are respectively disposed on the left and right sides of the central cylinder. A base frame is provided at the top of the annular base, and two connecting blocks are fixedly connected to the bottom of the base frame. The annular base extends into the connecting blocks and is slidably connected to them. A first support plate is rotatably connected to the outer side of the central cylinder and is fixedly connected to the top of the base frame. A second support plate is rotatably connected to the outer side of the side cylinders, and a moving block is fixedly connected to the bottom of the second support plate. The moving block is slidably connected to the inside of the base frame. Both the central cylinder and the side cylinders are equipped with... There are two positioning plates and two trapezoidal extrusion plates. A trapezoidal auxiliary plate is integrally formed on the positioning plate. The trapezoidal extrusion plate is attached to the trapezoidal auxiliary plate. A control plate is provided on one side of the intermediate cylinder and the side cylinder. The control plate extends into the interior of the intermediate cylinder and the side cylinder respectively. The control plate is fixedly connected to the two trapezoidal extrusion plates respectively. A first cylinder is fixedly connected to the exterior of the intermediate cylinder and the side cylinder. The first cylinder penetrates one side wall of the control plate and is fixedly connected to the control plate. A telescopic plate is provided between the intermediate cylinder and the side cylinder. The two ends of the telescopic plate are fixedly connected to the intermediate cylinder and the side cylinder respectively.

[0009] By adopting the above technical solution, after the steel pipe passes through the intermediate cylinder and two side cylinders in sequence, the positioning plate is pressed onto the outside of the steel pipe by controlling the movement of the trapezoidal extrusion block and pressing the inclined surface on the trapezoidal auxiliary plate. During positioning, the steel pipe is fixed by vertical extrusion inside the side cylinders and by front-to-back extrusion inside the intermediate cylinder, thus fixing the steel pipe in four directions, resulting in better stability. The distance between the side cylinders and the intermediate cylinder can also be freely adjusted to match the fixing requirements of steel pipes of different lengths. Finally, when bending the steel pipe, if it is necessary to stretch and bend in different directions, the side cylinders can be rotated to adjust the bending direction. The adjustment process is more flexible and helps to improve processing efficiency.

[0010] Preferably, guide plates are provided on the outer sides of both the side tube and the middle tube, and the guide plates extend into the interior of the side tube and the middle tube respectively. One end of the guide plate is fixedly connected to the positioning plate. Springs are fixedly connected to the outer sides of both the side tube and the middle tube, and the springs are located on the inner side of the guide plates and fixedly connected to the guide plates.

[0011] By adopting the above technical solution, the spring provides an elastic force to the guide plate.

[0012] Preferably, a movable plate is slidably connected to the second support plate, a rack is fixedly connected to the top of the movable plate, a first gear ring is fixedly connected to the outer side of the side cylinder, the first gear ring is disposed on the top of the rack and meshes with the rack, a rectangular frame is disposed between the middle cylinder and the base frame, a movable plate is slidably connected inside the rectangular frame, extension frames are fixedly connected to both sides of the movable plate, the extension frames extend out of the rectangular frame, an insertion plate is fixedly connected to the bottom of the movable plate, the insertion plate extends into the extension frame and is slidably connected to the extension frame, and an L-shaped plate is fixedly connected to the bottom of the rectangular frame, the L-shaped plate is fixedly connected to the outer side of the base frame.

[0013] By adopting the above technical solution, the rack drives the first gear ring to rotate after it moves.

[0014] Preferably, a threaded adjusting rod is rotatably connected inside the rectangular frame, the threaded adjusting rod passes through the moving plate and is threadedly connected to the moving plate, and a first motor is fixedly connected to the outside of the rectangular frame, the first motor being fixedly connected to one end of the threaded adjusting rod through an output shaft.

[0015] By adopting the above technical solution, the rotating threaded adjusting rod drives the moving plate to move horizontally.

[0016] Preferably, two second cylinders are fixedly connected inside the base frame, and one end of the second cylinder is fixedly connected to one side of the moving block.

[0017] By adopting the above technical solution, the second cylinder pushes the moving block after it is working.

[0018] Preferably, a second gear ring is fixedly connected to the inner side of the annular base, a mounting plate is fixedly connected to the bottom of the base frame, a second motor is fixedly connected to the inner side of the mounting plate, and a gear is fixedly connected to the second motor through an output shaft. The gear is located inside the second gear ring and meshes with the second gear ring.

[0019] By adopting the above technical solution, the rotation of the gear drives the rotation of the second gear ring.

[0020] Preferably, the positioning mechanism includes a stabilizing component, which includes a U-shaped plate. The U-shaped plate is disposed at the bottom of the base frame and fixedly connected to the top of the base plate. A lifting plate is slidably connected to the inner side of the U-shaped plate. A rectangular insert is fixedly connected to the top of the lifting plate. A rectangular slot is provided at the bottom of the base frame. The rectangular insert is disposed at the bottom of the rectangular slot and matches the rectangular slot. A third cylinder is fixedly connected to the bottom of the lifting plate and fixedly connected to the top of the base plate.

[0021] By adopting the above technical solution, the third cylinder pushes and pulls the lifting plate up and down after it works.

[0022] Preferably, a track frame is fixedly connected to the top of the base plate. The track frame is located on one side of the annular base. A bending mechanism is provided on the track frame. The bending mechanism includes a movable seat, which is slidably connected to the inside of the track frame. A movable block is slidably connected to the movable seat. A main frame is fixedly connected to the top of the movable block. A platform plate is provided on the top of the main frame. A connecting plate is fixedly connected to the bottom of the platform plate. The connecting plate extends into the inside of the main frame and is slidably connected to the main frame. A bending device body is fixedly connected to the top of the platform plate. An installation frame is fixedly connected to one side of the platform plate. Two bottom blocks are slidably connected inside the installation frame. A clamping plate is integrally formed on the top of each bottom block.

[0023] By adopting the above technical solution, the clamp can hold the steel pipe and pull the steel pipe according to the bending position.

[0024] Preferably, a bidirectional threaded rod is rotatably connected inside the mounting frame. The bidirectional threaded rod passes through two bottom blocks in sequence, and the bidirectional threaded rod is threaded to the two bottom blocks respectively. A third motor is fixedly connected to the outside of the mounting frame. The third motor is fixedly connected to one end of the bidirectional threaded rod through its output shaft. A fourth cylinder is fixedly connected to the top of the movable block. One end of the fourth cylinder is fixedly connected to the inside of the connecting plate.

[0025] By adopting the above technical solution, the thread directions at both ends of the bidirectional threaded rod are opposite.

[0026] Preferably, a threaded control rod is rotatably connected to the inner side of the track frame, the threaded control rod passes through the movable seat and is threadedly connected to the movable seat, a fourth motor is fixedly connected to the outer side of the track frame, the fourth motor is fixedly connected to one end of the threaded control rod through an output shaft, and a fifth cylinder is fixedly connected to the rear side wall of the movable seat, one end of the fifth cylinder is fixedly connected to the movable block.

[0027] By adopting the above technical solution, the rotation of the threaded control rod drives the moving seat to move horizontally.

[0028] In summary, the present invention has the following beneficial technical effects:

[0029] 1. A forming fixture for irregularly shaped steel pipes used in automotive anti-collision beams, through the design of a positioning mechanism, allows the steel pipe to pass sequentially through a middle cylinder and two side cylinders. By controlling the movement of a trapezoidal extrusion block and extruding the inclined surface of a trapezoidal auxiliary plate, the positioning plate is pressed onto the outside of the steel pipe. During positioning, the steel pipe is fixed by vertical extrusion inside the side cylinders and by front-to-back extrusion inside the middle cylinder, thus fixing the steel pipe in four directions for better stability. The distance between the side cylinders and the middle cylinder can also be freely adjusted to match the fixing requirements of steel pipes of different lengths. Finally, when bending the steel pipe, if it is necessary to stretch and bend in different directions, the side cylinders can be rotated to adjust the bending direction. The adjustment process is flexible and helps to improve processing efficiency.

[0030] 2. A special-shaped steel pipe forming fixture for automobile anti-collision beams, through the design of the bending mechanism, after a single bending process is completed, if it is necessary to continue bending operations on other parts, the two clamping plates clamp the steel pipe, and the moving seat is controlled to move, so as to pull the steel pipe, so as to bend different parts on one side of the steel pipe. The operation process does not require much manual intervention, which is more cost-effective than manual operation or additional push and pull by mechanical arms and other equipment.

[0031] 3. A special-shaped steel pipe forming fixture for automotive anti-collision beams, when it is necessary to perform bending operations in different directions on the same steel pipe, after the first motor works, it drives the threaded adjusting rod to rotate. At this time, the movable plate drives the rack to move, and the rack drives the first gear ring to rotate. At this time, the steel pipe also rotates. By flipping and adjusting the steel pipe, the purpose of bending in different directions can be achieved during subsequent bending. At the same time, after one end of the steel pipe is bent, the second motor works and drives the gear to rotate, so that the positions of the two ends of the steel pipe are swapped to receive bending processing in turn. The adjustment process is simple and fast, which is conducive to quickly completing the bending and forming process of the steel pipe. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the present invention;

[0033] Figure 2 This is a cross-sectional view of the annular base in this invention;

[0034] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0035] Figure 4 This is a cross-sectional view of the base frame in this invention;

[0036] Figure 5 for Figure 4 Enlarged view of point B in the image;

[0037] Figure 6 This is a schematic diagram of the movable base in this invention;

[0038] Figure 7 This is a cross-sectional view of the side tube in this invention.

[0039] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Annular base; 3. Positioning mechanism; 31. Intermediate cylinder; 32. Side cylinder; 33. Base frame; 34. Connecting block; 35. First support plate; 36. Second support plate; 37. Moving block; 38. Positioning plate; 39. Trapezoidal extrusion plate; 391. Trapezoidal auxiliary plate; 392. Control plate; 393. First cylinder; 394. Telescopic plate; 395. Guide plate; 396. Spring; 397. Movable plate; 398. Rack; 399. Rectangular frame; 381. Moving plate; 382. Extension frame; 383. Insertion plate; 384. L-shaped plate; 385. Threaded adjusting rod; 386. First motor; 387. Second cylinder; 388. Second gear ring; 389. Second motor; 371. Gear; 372. U-shaped plate; 373. Lifting plate; 374. Rectangular insert rod; 375. Rectangular slot; 376. Third cylinder; 377. First gear ring; 4. Track frame; 5. Bending mechanism; 51. Moving seat; 52. Movable block; 53. Main frame; 54. Platform plate; 55. Connecting plate; 56. Bending device body; 57. Mounting frame; 58. Bottom block; 59. Clamping plate; 591. Bidirectional threaded rod; 592. Third motor; 593. Fourth cylinder; 594. Threaded control rod; 595. Fourth motor; 596. Fifth cylinder. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1 -Appendix Figure 7 The present invention will be described in further detail below.

[0041] This invention discloses a tooling for forming irregularly shaped steel tubes for automotive anti-collision beams. (Refer to...) Figures 1-7 The system includes a base plate 1, an annular base 2 fixedly connected to the top of the base plate 1, a positioning mechanism 3 provided on the annular base 2, the positioning mechanism 3 including a middle cylinder 31 and two side cylinders 32, the two side cylinders 32 respectively provided on the left and right sides of the middle cylinder 31, a base frame 33 provided on the top of the annular base 2, two connecting blocks 34 fixedly connected to the bottom of the base frame 33, the annular base 2 extending into the interior of the connecting blocks 34 and slidingly connected to the connecting blocks 34, a first support plate 35 rotatably connected to the outside of the middle cylinder 31, and the first support plate 35 fixedly connected to the top of the base frame 33;

[0042] A second support plate 36 is rotatably connected to the outside of the side cylinder 32. A moving block 37 is fixedly connected to the bottom of the second support plate 36. The moving block 37 is slidably connected to the inside of the base frame 33. Two positioning plates 38 and two trapezoidal extrusion plates 39 are provided inside the middle cylinder 31 and the side cylinder 32. A trapezoidal auxiliary plate 391 is integrally formed on the positioning plate 38. The trapezoidal extrusion plate 39 is attached to the trapezoidal auxiliary plate 391. A control plate 392 is provided on one side of the middle cylinder 31 and the side cylinder 32. The control plate 392 extends into the middle cylinder 31 and the side cylinder 32 respectively. The control plate 392 is fixedly connected to the two trapezoidal extrusion plates 39 respectively. A first cylinder 393 is fixedly connected to the outside of the middle cylinder 31 and the side cylinder 32.

[0043] The first cylinder 393 penetrates one side wall of the control plate 392 and is fixedly connected to the control plate 392. A telescopic plate 394 is provided between the intermediate cylinder 31 and the side cylinder 32. The two ends of the telescopic plate 394 are fixedly connected to the intermediate cylinder 31 and the side cylinder 32 respectively. After the steel pipe passes through the intermediate cylinder 31 and the two side cylinders 32 in sequence, the positioning plate 38 can be pressed onto the outside of the steel pipe by controlling the movement of the trapezoidal extrusion block and extruding the inclined surface on the trapezoidal auxiliary plate 391. During positioning, the steel pipe is pressed and fixed from top to bottom inside the side cylinder 32 and from front to back inside the intermediate cylinder 31. This fixes the steel pipe in four directions, resulting in better stability. The distance between the side cylinder 32 and the intermediate cylinder 31 can also be freely adjusted to match the fixing requirements of steel pipes of different lengths. Finally, when bending the steel pipe, if it is necessary to stretch and bend in different directions, the side cylinder 32 can be rotated to adjust the bending direction. The adjustment process is more flexible and helps to improve processing efficiency.

[0044] Guide plates 395 are provided on the outer sides of both the side tube 32 and the middle tube 31. The guide plates 395 extend into the interior of the side tube 32 and the middle tube 31 respectively. One end of the guide plate 395 is fixedly connected to the positioning plate 38. Springs 396 are fixedly connected to the outer sides of both the side tube 32 and the middle tube 31. The springs 396 are located on the inner side of the guide plates 395 and are fixedly connected to the guide plates 395. The springs 396 provide elastic force to the guide plates 395.

[0045] A movable plate 397 is slidably connected to the second support plate 36. A rack 398 is fixedly connected to the top of the movable plate 397. A first gear ring 377 is fixedly connected to the outside of the side cylinder 32. The first gear ring 377 is located on the top of the rack 398 and meshes with the rack 398. A rectangular frame 399 is provided between the middle cylinder 31 and the base frame 33. A movable plate 381 is slidably connected inside the rectangular frame 399. Extension frames 382 are fixedly connected to both sides of the movable plate 381. The extension frames 382 extend out of the rectangular frame 399. An insertion plate 383 is fixedly connected to the bottom of the movable plate 397. The insertion plate 383 extends into the extension frame 382 and is slidably connected to the extension frame 382. An L-shaped plate 384 is fixedly connected to the bottom of the rectangular frame 399. The L-shaped plate 384 is fixedly connected to the outside of the base frame 33. After the rack 398 moves, it drives the first gear ring 377 to rotate.

[0046] A threaded adjusting rod 385 is rotatably connected inside the rectangular frame 399. The threaded adjusting rod 385 passes through the moving plate 381 and is threadedly connected to the moving plate 381. A first motor 386 is fixedly connected to the outside of the rectangular frame 399. The first motor 386 is fixedly connected to one end of the threaded adjusting rod 385 through its output shaft. After the threaded adjusting rod 385 rotates, it drives the moving plate 381 to move horizontally. Two second cylinders 387 are fixedly connected inside the base frame 33. One end of the second cylinder 387 is fixedly connected to one side of the moving block 37. After the second cylinder 387 works, it pushes the moving block 37.

[0047] A second gear ring 388 is fixedly connected to the inner side of the annular base 2. A mounting plate is fixedly connected to the bottom of the base frame 33. A second motor 389 is fixedly connected to the inner side of the mounting plate. A gear 371 is fixedly connected to the second motor 389 through the output shaft. The gear 371 is located inside the second gear ring 388 and meshes with the second gear ring 388. When the gear 371 rotates, it drives the second gear ring 388 to rotate.

[0048] The positioning mechanism 3 includes a stabilizing component, which includes a U-shaped plate 372. The U-shaped plate 372 is located at the bottom of the base frame 33 and is fixedly connected to the top of the base plate 1. A lifting plate 373 is slidably connected to the inner side of the U-shaped plate 372. A rectangular insert rod 374 is fixedly connected to the top of the lifting plate 373. A rectangular slot 375 is opened at the bottom of the base frame 33. The rectangular insert rod 374 is located at the bottom of the rectangular slot 375 and matches the rectangular slot 375. A third cylinder 376 is fixedly connected to the bottom of the lifting plate 373 and is fixedly connected to the top of the base plate 1. After the third cylinder 376 is working, it pushes and pulls the lifting plate 373 up and down.

[0049] A track frame 4 is fixedly connected to the top of the base plate 1. The track frame 4 is located on one side of the annular base 2. A bending mechanism 5 is provided on the track frame 4. The bending mechanism 5 includes a movable seat 51, which is slidably connected to the inside of the track frame 4. A movable block 52 is slidably connected to the movable seat 51. A main frame 53 is fixedly connected to the top of the movable block 52. A platform plate 54 is provided on the top of the main frame 53. A connecting plate 55 is fixedly connected to the bottom of the platform plate 54. The connecting plate 55 extends into the inside of the main frame 53 and is slidably connected to the main frame 53. A pipe bending device body 56 is fixedly connected to the top of the platform plate 54. An installation frame 57 is fixedly connected to one side of the platform plate 54. Two bottom blocks 58 are slidably connected inside the installation frame 57. A clamping plate 59 is integrally formed on the top of the bottom block 58. The clamping plate 59 can clamp the steel pipe and pull the steel pipe according to the bending position.

[0050] A bidirectional threaded rod 591 is rotatably connected inside the mounting frame 57. The bidirectional threaded rod 591 passes through two bottom blocks 58 in sequence, and is threadedly connected to the two bottom blocks 58 respectively. A third motor 592 is fixedly connected to the outside of the mounting frame 57. The third motor 592 is fixedly connected to one end of the bidirectional threaded rod 591 through its output shaft. A fourth cylinder 593 is fixedly connected to the top of the movable block 52. One end of the fourth cylinder 593 is fixedly connected to the inside of the connecting plate 55. The threads at both ends of the bidirectional threaded rod 591 are in opposite directions. A threaded control rod 594 is rotatably connected to the inside of the track frame 4. The threaded control rod 594 passes through the movable seat 51 and is threadedly connected to the movable seat 51. A fourth motor 595 is fixedly connected to the outside of the track frame 4. The fourth motor 595 is fixedly connected to one end of the threaded control rod 594 through its output shaft. A fifth cylinder 596 is fixedly connected to the rear side wall of the movable seat 51. One end of the fifth cylinder 596 is fixedly connected to the movable block 52. After the threaded control rod 594 rotates, it drives the movable seat 51 to move horizontally.

[0051] In actual operation, when this device is used, first connect the power supply to the device. After the anti-collision beam is bent and formed, the steel pipe is inserted through the middle cylinder 31 and the two side cylinders 32 and then fixed. Then, the steel pipe is inserted into the body 56 of the bending device and the bending device body 56 performs the bending operation. The bending device body 56 in this device is an existing bending structure device. This is existing technology, so it will not be described in detail here. In the bending work, the inner diameter of the side cylinder 32, i.e. the middle cylinder 31, needs to be greater than the maximum space width required when the steel pipe is bent and pulled out, so as to ensure that the anti-collision beam steel pipe can still be pulled out smoothly after bending.

[0052] After the steel pipe is inserted through the side cylinder 32 and the middle cylinder 31, the first cylinder 393 works and pushes the control plate 392. After the control plate 392 moves, it drives the trapezoidal extrusion plate 39 to move. When the trapezoidal extrusion plate 39 moves, its inclined surface contacts the inclined surface on the trapezoidal auxiliary plate 391, and after continuing to move, it forms an extrusion and pushing effect, causing the trapezoidal auxiliary plate 391 to move. The trapezoidal auxiliary plate 391 drives the positioning plate 38 to move. After the positioning plate 38 moves, it clamps the outside of the steel pipe to ensure its stability during the bending process. The part of the steel pipe inside the side cylinder 32 is clamped in the vertical direction, while the part inside the middle cylinder 31 is clamped in the front and rear directions, thus realizing the four-way clamping of the steel pipe, which can effectively ensure its stability during the bending process.

[0053] Before clamping the steel pipe, the distance between each side cylinder 32 and the middle cylinder 31 can be adjusted according to the length of the steel pipe. During adjustment, the second cylinder 387 works and pushes and pulls the moving block 37, causing the moving block 37 to drive the second support plate 36 to move. The second support plate 36 drives the side cylinder 32 to move, thereby adjusting the distance between the side cylinder 32 and the middle cylinder 31, achieving the overall adjustment of the clamping length, and flexibly matching the clamping requirements of steel pipes of different lengths.

[0054] During bending, the fourth motor 595 drives the threaded control rod 594 to rotate, and the threaded control rod 594 drives the moving seat 51 to move horizontally. Through the above connection relationship, it can be seen that the distance between the bending device body 56 and the steel pipe can be flexibly adjusted so that the steel pipe can be smoothly inserted into the bending device body 56. After the fourth cylinder 593 works, it pushes and pulls the connecting plate 55 up and down. The connecting plate 55 drives the platform plate 54 to rise and fall. The platform plate 54 drives the bending device body 56 to rise and fall for adjustment. After the fifth cylinder 596 works, it pushes and pulls the movable block 52. The movable block 52 drives the main frame 53 to move. Through the above connection relationship, it can be seen that the front and rear positions of the bending device body 56 can be adjusted. Based on the above steps, the position of the bending device body 56 can be flexibly adjusted to ensure that it can be smoothly connected to the steel pipe and perform the bending operation.

[0055] After a single bending operation is completed, if bending operations are needed on other parts, repeat the above steps. After the steel pipe is inserted between the two clamping plates 59, the third motor 592 operates and drives the bidirectional threaded rod 591 to rotate. The bidirectional threaded rod 591 drives the two bottom blocks 58 to move towards or away from each other. The bottom blocks 58 drive the clamping plates 59 to move. At this time, the two clamping plates 59 move towards each other until they clamp the steel pipe. Then, release the clamping operation of the positioning plate 38 on the steel pipe. After the above steps of controlling the horizontal movement of the moving seat 51 are completed, the steel pipe can be pulled out. After being pulled out, bending operations can continue on other parts of the steel pipe. Furthermore, if further bending is needed... When the steel pipe is to bend in different directions, the first motor 386 drives the threaded adjusting rod 385 to rotate. The threaded adjusting rod 385 drives the moving plate 381 to move back and forth. The moving plate 381 drives the extension frame 382 to move. The extension frame 382 drives the insertion plate 383 to move. The insertion plate 383 then drives the movable plate 397 to move. The movable plate 397 drives the rack 398 to move. After the rack 398 moves, it drives the first gear ring 377 to rotate. The first gear ring 377 drives the side cylinder 32 to rotate. Through the above steps, it can be seen that the steel pipe can also rotate at this time. By flipping and adjusting the steel pipe, the purpose of bending in different directions can be achieved during subsequent bending.

[0056] After one end of the steel pipe is bent, the second motor 389 operates and drives the gear 371 to rotate. Since the gear 371 meshes with the second gear ring 388, it can be seen from the above connection relationship that after the gear 371 rotates, the base frame 33 can rotate 180 degrees on the top of the annular base 2. Based on the above steps, it can be seen that the positions of the two ends of the steel pipe can be interchanged. After the position is adjusted, in order to ensure the stability of the base frame 33 during the bending process, the third cylinder 376 operates and pushes the lifting plate 373. After the lifting plate 373 drives the rectangular insert rod 374 to insert into the rectangular slot 375, the base frame 33 can no longer rotate, thus effectively avoiding the possibility of the base frame 33 shaking during the bending operation.

[0057] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A tooling for forming irregularly shaped steel tubes for automotive anti-collision beams, characterized in that: Includes a base plate (1), and an annular base (2) is fixedly connected to the top of the base plate (1), and a positioning mechanism (3) is provided on the annular base (2). The positioning mechanism (3) includes a middle cylinder (31) and two side cylinders (32), which are respectively located on the left and right sides of the middle cylinder (31). A base frame (33) is provided on the top of the annular base (2), and two connecting blocks (34) are fixedly connected to the bottom of the base frame (33). The annular base (2) extends into the connecting blocks (34) and is slidably connected to the connecting blocks (34). A first support plate (35) is rotatably connected to the outside of the middle cylinder (31), and the first support plate (35) is fixedly connected to the top of the base frame (33). A second support plate (36) is rotatably connected to the outside of the side cylinders (32), and a moving block (37) is fixedly connected to the bottom of the second support plate (36). The moving block (37) is slidably connected to the inside of the base frame (33). Two positioning plates (38) and two side cylinders (32) are provided inside the middle cylinder (31) and the side cylinders (32). Two trapezoidal extrusion plates (39) are provided. A trapezoidal auxiliary plate (391) is integrally formed on the positioning plate (38). The trapezoidal extrusion plates (39) and the trapezoidal auxiliary plate (391) are attached to each other. A control plate (392) is provided on one side of the intermediate cylinder (31) and the side cylinder (32). The control plate (392) extends into the interior of the intermediate cylinder (31) and the side cylinder (32) respectively. The control plate (392) is fixedly connected to the two trapezoidal extrusion plates (39) respectively. A first cylinder (393) is fixedly connected to the outside of the intermediate cylinder (31) and the side cylinder (32). The first cylinder (393) penetrates one side wall of the control plate (392) and is fixedly connected to the control plate (392). A telescopic plate (394) is provided between the intermediate cylinder (31) and the side cylinder (32). The two ends of the telescopic plate (394) are fixedly connected to the intermediate cylinder (31) and the side cylinder (32) respectively. Guide plates (395) are provided on the outer sides of the side tube (32) and the middle tube (31), respectively. The guide plates (395) extend into the interior of the side tube (32) and the middle tube (31). One end of the guide plate (395) is fixedly connected to the positioning plate (38). Springs (396) are fixedly connected on the outer sides of the side tube (32) and the middle tube (31). The springs (396) are located on the inner side of the guide plate (395) and are fixedly connected to the guide plate (395). A movable plate (397) is slidably connected to the second support plate (36). A rack (398) is fixedly connected to the top of the movable plate (397). A first gear ring (377) is fixedly connected to the outside of the side cylinder (32). The first gear ring (377) is located on the top of the rack (398) and meshes with the rack (398). A rectangular frame (399) is provided between the intermediate cylinder (31) and the base frame (33). A movable plate (381) is slidably connected inside the rectangular frame (399). The movable plate (381) is fixedly connected to both sides of an extension frame (382), the extension frame (382) extends out of the rectangular frame (399), the movable plate (397) is fixedly connected to an insertion plate (383) at the bottom, the insertion plate (383) extends into the extension frame (382) and slides with the extension frame (382), the rectangular frame (399) is fixedly connected to an L-shaped plate (384) at the bottom, and the L-shaped plate (384) is fixedly connected to the outside of the base frame (33); A threaded adjusting rod (385) is rotatably connected inside the rectangular frame (399). The threaded adjusting rod (385) passes through the moving plate (381) and is connected to the moving plate (381) by a thread. A first motor (386) is fixedly connected to the outside of the rectangular frame (399). The first motor (386) is fixedly connected to one end of the threaded adjusting rod (385) through its output shaft.

2. The forming fixture for irregularly shaped steel tubes for automotive anti-collision beams according to claim 1, characterized in that: Two second cylinders (387) are fixedly connected inside the base frame (33), and one end of the second cylinder (387) is fixedly connected to one side of the moving block (37).

3. The forming fixture for irregularly shaped steel tubes for automotive anti-collision beams according to claim 1, characterized in that: The inner side of the annular base (2) is fixedly connected to a second gear ring (388), and the bottom of the base frame (33) is fixedly connected to a mounting plate. The inner side of the mounting plate is fixedly connected to a second motor (389). The second motor (389) is fixedly connected to a gear (371) through an output shaft. The gear (371) is located inside the second gear ring (388), and the gear (371) meshes with the second gear ring (388).

4. The forming fixture for irregularly shaped steel tubes for automotive anti-collision beams according to claim 1, characterized in that: The positioning mechanism (3) includes a stabilizing component, which includes a U-shaped plate (372). The U-shaped plate (372) is located at the bottom of the base frame (33) and is fixedly connected to the top of the base plate (1). A lifting plate (373) is slidably connected to the inner side of the U-shaped plate (372). A rectangular insert rod (374) is fixedly connected to the top of the lifting plate (373). A rectangular slot (375) is provided at the bottom of the base frame (33). The rectangular insert rod (374) is located at the bottom of the rectangular slot (375) and matches the rectangular slot (375). A third cylinder (376) is fixedly connected to the bottom of the lifting plate (373) and is fixedly connected to the top of the base plate (1).

5. The forming fixture for irregularly shaped steel tubes for automotive anti-collision beams according to claim 1, characterized in that: The top of the base plate (1) is fixedly connected to a track frame (4). The track frame (4) is located on one side of the annular base (2). A bending mechanism (5) is provided on the track frame (4). The bending mechanism (5) includes a movable seat (51). The movable seat (51) is slidably connected to the inside of the track frame (4). A movable block (52) is slidably connected to the movable seat (51). A main frame (53) is fixedly connected to the top of the movable block (52). A platform plate (54) is provided on the top of the main frame (53). A connecting plate (55) is fixedly connected to the bottom of the platform plate (54). The connecting plate (55) extends into the inside of the main frame (53) and is slidably connected to the main frame (53). A bending device body (56) is fixedly connected to the top of the platform plate (54). An installation frame (57) is fixedly connected to one side of the platform plate (54). Two bottom blocks (58) are slidably connected inside the installation frame (57). A clamping plate (59) is integrally formed on the top of the bottom block (58).

6. The forming fixture for irregularly shaped steel tubes for automotive anti-collision beams according to claim 5, characterized in that: The mounting frame (57) is rotatably connected to a bidirectional threaded rod (591), which passes through two bottom blocks (58) in sequence and is threaded to the two bottom blocks (58) respectively. A third motor (592) is fixedly connected to the outside of the mounting frame (57), and the third motor (592) is fixedly connected to one end of the bidirectional threaded rod (591) through its output shaft. A fourth cylinder (593) is fixedly connected to the top of the movable block (52), and one end of the fourth cylinder (593) is fixedly connected to the inside of the connecting plate (55).

7. The forming fixture for irregularly shaped steel tubes for automotive anti-collision beams according to claim 5, characterized in that: A threaded control rod (594) is rotatably connected to the inner side of the track frame (4). The threaded control rod (594) passes through the movable seat (51) and is threadedly connected to the movable seat (51). A fourth motor (595) is fixedly connected to the outer side of the track frame (4). The fourth motor (595) is fixedly connected to one end of the threaded control rod (594) through its output shaft. A fifth cylinder (596) is fixedly connected to the rear side wall of the movable seat (51). One end of the fifth cylinder (596) is fixedly connected to the movable block (52).

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