A bending fixture for automotive radiator pipes

By designing automated feeding and adjustment components, the problem of manual feeding required by existing tooling has been solved, realizing automated feeding and limiting of pipelines, improving bending efficiency and applicability, and enhancing the practicality of the tooling.

CN224309364UActive Publication Date: 2026-06-02HUBEI IXI HEAT EXCHANGE SYST CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI IXI HEAT EXCHANGE SYST CO LTD
Filing Date
2025-06-13
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing automotive radiator pipe bending fixture requires manual pushing and feeding, which makes the operation cumbersome, reduces the degree of automation and bending efficiency, and affects its practicality.

Method used

A bending fixture for automotive radiator pipes, including a feeding component and an adjusting component, was designed. The fixture uses a motor to drive a gear and rack to move a moving seat, thereby achieving automatic feeding of the pipes. The fixture also uses a guide cylinder and a motor to control the limit, thus improving the degree of automation and the scope of application.

Benefits of technology

It has achieved automated feeding and limiting of pipelines, improved bending efficiency and applicability, and enhanced the practicality and efficiency of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a bending fixture for automotive radiator pipes, including a processing table. A pushing component and an adjusting component are located on the top of the processing table. The pushing component includes vertical plates fixedly connected to both sides of the top of the processing table, a rotating shaft connected to the vertical plates, a first motor fixedly connected to one end of the rotating shaft, a gear fixedly connected to the outside of the rotating shaft, a rack connected to the gear, a movable seat fixedly connected to one end of the rack, and a support seat fixedly connected to one side of the movable seat. This utility model, by setting up a processing table and a pushing component, solves the problem that existing bending fixtures, while capable of bending radiator pipes, require manual pushing and feeding of the pipes during bending. Manual feeding is not only cumbersome but also reduces the automation level of pipe bending, thus affecting bending efficiency and reducing practicality.
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Description

Technical Field

[0001] This utility model relates to the field of pipe bending tooling technology, specifically a bending tooling for automotive radiator pipes. Background Technology

[0002] As a heat transfer and conduction component inside a car, the car radiator plays an important role. The main materials of the car radiator are aluminum or copper, and the radiator core is its main component, which contains coolant. In layman's terms, the car radiator is a heat exchanger. During the manufacturing process, the straight pipes inside the car radiator need to be bent into curves.

[0003] Existing patent CN220532695U discloses a bending fixture for automotive radiator pipes, which includes a processing base. A circular shell is mounted on the side surface of the processing base. Multiple first wedge-shaped rods are arranged in a circumferential array inside the circular shell, with one end of each rod penetrating into the inner side of the shell. A clamping mechanism is provided on the outer side of the shell, capable of driving the multiple wedge-shaped rods to move simultaneously towards the center of the shell. A forming wheel is provided on the upper surface of the processing base, and a through groove is formed on the surface of the base. A connecting block is mounted on the bottom of the forming wheel, extending through the groove to the lower side of the processing base. A slot is formed on the surface of the connecting block on the lower side of the base. This design eliminates the need to change fixtures and bending rollers, and allows for quick replacement of the forming wheel, eliminating the need for bolts. Therefore, this bending fixture can quickly adapt to pipes of different diameters and bend them to different degrees of curvature, improving processing efficiency.

[0004] Based on the search of the aforementioned patents and the findings of existing bending fixtures, it was discovered that while the aforementioned bending fixtures can bend radiator pipes, manual feeding of the pipes is required during bending. This manual feeding is not only cumbersome but also reduces the automation of pipe bending, thereby affecting bending efficiency and reducing practicality. Utility Model Content

[0005] The purpose of this utility model is to provide a bending fixture for automotive radiator pipes, in order to solve the problem mentioned in the background art that, although the existing bending fixtures can bend radiator pipes, they require manual pushing and feeding of the pipes during bending. Manual feeding is not only cumbersome, but also reduces the automation level of pipe bending, which in turn affects the bending efficiency and reduces practicality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bending fixture for automotive radiator pipes, including a processing table, a pushing component on the top of the processing table, and an adjusting component on the top of the processing table;

[0007] The pushing component includes vertical plates fixedly connected to both sides of the top of the processing table, a rotating shaft connected to the vertical plates, a first motor fixedly connected to one end of the rotating shaft, a gear fixedly connected to the outside of the rotating shaft, a rack connected to the gear, a movable seat fixedly connected to one end of the rack, a support seat fixedly connected to one side of the movable seat, a first positioning groove opened on the top of the support seat, and a positioning component for fixing the pipeline. The gear meshes with the rack, and the rotating shaft is rotatably connected to the vertical plates.

[0008] Preferably, the adjustment component includes a slide groove respectively formed on both sides of the top of the processing table, a slider connected to the slide groove, a guide cylinder connected to the top of the slider, a bidirectional screw connected to the slider, and a second motor fixedly connected to one end of the bidirectional screw. The slider is slidably connected to the slide groove, the bidirectional screw is screwed to the slider, the bidirectional screw is rotatably connected to the processing table, and the guide cylinder is rotatably connected to the slider.

[0009] Preferably, a fixed plate is fixedly connected to one side of the top of the processing table, a cylinder is fixedly connected to one side of the fixed plate, a movable frame is fixedly connected to the output end of the cylinder, and a bending wheel is rotatably connected inside the movable frame.

[0010] Preferably, the positioning component includes a moving groove formed on one side of the moving seat, a moving block connected to the moving groove, a first screw connected to the moving block, a third motor fixedly connected to the top of the first screw, a positioning seat fixedly connected to one side of the moving block, and a second positioning groove formed at the bottom of the positioning seat. The moving block is slidably connected to the moving groove, the first screw is screwed to the moving block, and the first screw is rotatably connected to the moving seat.

[0011] Preferably, the top of the processing table is provided with a guide groove, and the bottom of the movable seat is fixedly connected with a guide block, which is slidably connected to the guide groove.

[0012] Preferably, a protective cover is fixedly connected to one side of the top of the processing table. The protective cover is located outside the gear and rack, and the rotating shaft is rotatably connected to the protective cover.

[0013] Preferably, a guide rod is fixedly connected to the front of the movable frame, and the guide rod passes through the fixed plate and is slidably connected to the fixed plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting up a processing table and a pushing component, the pipeline can be placed on top of the support base. The positioning base can be moved down to fix pipelines of different sizes. The first motor can drive the gear to rotate, which in turn can drive the rack and the moving base to move, which in turn can drive the pipeline to move, thus realizing continuous feeding of the pipeline without the need for manual pushing of the pipeline. This can greatly improve the degree of automation, indirectly improve the pipeline bending efficiency, and greatly improve the practicality and efficiency of the device.

[0016] 2. With the addition of adjustment components, the two guide cylinders can limit the pipe, making it easier to bend. The second motor can control the two sliders to move in opposite directions, thereby controlling the two guide cylinders to move back and forth. This allows for the limitation of pipes of different sizes, thus increasing the applicability and further enhancing practicality. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram provided for this utility model;

[0018] Figure 2 The left view provided for this utility model;

[0019] Figure 3 Provided by this utility model Figure 2 A three-dimensional cross-sectional view at point AA;

[0020] Figure 4 Provided by this utility model Figure 3 Enlarged view of point C in the middle;

[0021] Figure 5 Front view provided for this utility model;

[0022] Figure 6 Provided by this utility model Figure 5 3D cross-sectional view at point BB.

[0023] In the diagram: 1. Processing table; 21. Vertical plate; 22. Rotating shaft; 23. First motor; 24. Gear; 25. Rack; 26. Moving seat; 27. Support seat; 28. First positioning groove; 31. Slide groove; 32. Slider; 33. Guide cylinder; 34. Bidirectional screw; 35. Second motor; 41. Fixed plate; 42. Cylinder; 43. Moving frame; 44. Bending wheel; 51. Moving groove; 52. Moving block; 53. First screw; 54. Third motor; 55. Positioning seat; 56. Second positioning groove; 61. Guide groove; 62. Guide block; 71. Protective cover; 81. Guide rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 , Figure 2 , Figure 3 as well as Figure 4This utility model provides a technical solution: a bending fixture for automotive radiator pipes, including a processing table 1. The top of the processing table 1 is equipped with a pushing component and an adjusting component. The pushing component includes vertical plates 21 fixedly connected to both sides of the top of the processing table 1, a rotating shaft 22 connected to the vertical plates 21, a first motor 23 fixedly connected to one end of the rotating shaft 22, a gear 24 fixedly connected to the outside of the rotating shaft 22, a rack 25 connected to the gear 24, a movable seat 26 fixedly connected to one end of the rack 25, a support seat 27 fixedly connected to one side of the movable seat 26, a first positioning groove 28 opened on the top of the support seat 27, and a tool for pipe alignment. The positioning component for fixing the pipeline includes a gear 24 meshing with a rack 25, a rotating shaft 22 rotatably connected to a vertical plate 21, and a first motor 23 controlling the rotating shaft 22 to drive the gear 24 to rotate. The gear 24 can drive the rack 25 to move laterally, which in turn can drive the moving seat 26 to move. The pipeline can be placed on top of the support base 27. As the moving seat 26 moves, the pipeline can move, enabling automatic feeding of the pipeline, thereby improving the degree of automation and the efficiency of pipeline bending. The positioning component includes a moving groove 51 opened on one side of the moving seat 26, a moving block 52 connected to the moving groove 51, and a first motor 23 connected to the moving block 52. A screw 53, a third motor 54 fixedly connected to the top of the first screw 53, a positioning seat 55 fixedly connected to one side of the moving block 52, and a second positioning groove 56 formed at the bottom of the positioning seat 55. The moving block 52 is slidably connected to the moving groove 51. The first screw 53 is screwed to the moving block 52 and rotatably connected to the moving seat 26. The third motor 54 can control the rotation of the first screw 53, thereby driving the moving block 52 and the positioning seat 55 vertically. This allows the pipeline to be fixed between the positioning seat 55 and the support seat 27, preventing the pipeline from moving during bending and affecting the bending result. It can also fix pipelines of different sizes. This design improves the applicability of the processing table 1. A guide groove 61 is provided on the top of the processing table 1, and a guide block 62 is fixedly connected to the bottom of the movable seat 26. The guide block 62 is slidably connected to the guide groove 61. The movement of the movable seat 26 can drive the guide block 62 to move synchronously. The guide block 62 can improve the stability of the movement of the movable seat 26 and prevent the rack 25 from vertically disengaging from the gear 24. A protective cover 71 is fixedly connected to one side of the top of the processing table 1. The protective cover 71 is located outside the gear 24 and the rack 25. The rotating shaft 22 is rotatably connected to the protective cover 71. The protective cover 71 can protect the gear 24 and the rack 25 and prevent foreign objects from entering them and affecting their normal operation.

[0026] Please see Figure 1 , Figure 5 as well as Figure 6The adjustment components include slide grooves 31 respectively opened on both sides of the top of the processing table 1, sliders 32 connected to the slide grooves 31, guide cylinders 33 connected to the top of the sliders 32, bidirectional screws 34 connected to the sliders 32, and a second motor 35 fixedly connected to one end of the bidirectional screws 34. The sliders 32 are slidably connected to the slide grooves 31, the bidirectional screws 34 are screwed to the sliders 32, the bidirectional screws 34 are rotatably connected to the processing table 1, and the guide cylinders 33 are rotatably connected to the sliders 32. When the second motor 35 is started, it can drive the bidirectional screws 34 to rotate, thereby controlling the two sliders 32 to move in opposite directions, which in turn causes the two guide cylinders 33 to move in opposite directions. This allows for limiting the movement of pipes of different sizes, facilitating subsequent adjustments. The bending process involves a fixed plate 41 fixedly connected to one side of the top of the processing table 1, a cylinder 42 fixedly connected to one side of the fixed plate 41, a movable frame 43 fixedly connected to the output end of the cylinder 42, and a bending wheel 44 rotatably connected inside the movable frame 43. The fixed plate 41 can fix the cylinder 42, and the cylinder 42 can push the movable frame 43 and the bending wheel 44 to move. Due to the presence of the guide cylinder 33, the pipeline can be bent. A guide rod 81 is fixedly connected to the front of the movable frame 43. The guide rod 81 passes through the fixed plate 41 and is slidably connected to the fixed plate 41. The guide rod 81 can move synchronously with the movable frame 43. The guide rod 81 can improve the stability of the movable frame 43 and prevent the movable frame 43 from tilting.

[0027] Working principle: During operation, the pipeline is placed on top of the support base 27. Then, the third motor 54 is started, which drives the first screw 53 to rotate. The rotation of the first screw 53 causes the moving block 52 to move downward, which in turn causes the positioning seat 55 to move downward, thereby pressing and fixing the pipeline. Then, the second motor 35 is started, which drives the bidirectional screw 34 to rotate. The rotation of the bidirectional screw 34 causes the two sliders 32 to move. The movement of the sliders 32 causes the guide cylinder 33 to move, making the guide cylinder 33 contact the pipeline. Then, the cylinder 42 is started, and the cylinder 42 can operate... Moving the movable frame 43 and the movable block 52 can move the bending wheel 44, which can bend the pipeline. The cylinder 42 resets, which in turn resets the bending wheel 44. The first motor 23 starts, which can drive the rotating shaft 22 and the gear 24 to rotate. The rotation of the gear 24 can drive the rack 25 to move. The movement of the rack 25 can drive the movable seat 26 to move, which in turn can drive the support seat 27 to move, which in turn can drive the pipeline to move. Then the pipeline can be bent again. The above is the working process of the entire device. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bending fixture for automotive radiator pipes, comprising a processing table (1), characterized in that: The processing table (1) is provided with a pushing component on the top and an adjusting component on the top; The pushing component includes a vertical plate (21) fixedly connected to both sides of the top of the processing table (1), a rotating shaft (22) connected to the vertical plate (21), a first motor (23) fixedly connected to one end of the rotating shaft (22), a gear (24) fixedly connected to the outside of the rotating shaft (22), a rack (25) connected to the gear (24), a movable seat (26) fixedly connected to one end of the rack (25), a support seat (27) fixedly connected to one side of the movable seat (26), a first positioning groove (28) opened on the top of the support seat (27), and a positioning component for fixing the pipeline. The gear (24) meshes with the rack (25), and the rotating shaft (22) is rotatably connected to the vertical plate (21).

2. The automotive radiator pipe bending fixture according to claim 1, characterized in that: The adjustment components include slide grooves (31) respectively opened on both sides of the top of the processing table (1), a slider (32) connected to the slide groove (31), a guide cylinder (33) connected to the top of the slider (32), a bidirectional screw (34) connected to the slider (32), and a second motor (35) fixedly connected to one end of the bidirectional screw (34). The slider (32) is slidably connected to the slide groove (31), the bidirectional screw (34) is screwed to the slider (32), the bidirectional screw (34) is rotatably connected to the processing table (1), and the guide cylinder (33) is rotatably connected to the slider (32).

3. The automotive radiator pipe bending fixture according to claim 1, characterized in that: A fixed plate (41) is fixedly connected to one side of the top of the processing table (1), and a cylinder (42) is fixedly connected to one side of the fixed plate (41). A movable frame (43) is fixedly connected to the output end of the cylinder (42), and a bending wheel (44) is rotatably connected inside the movable frame (43).

4. The automotive radiator pipe bending fixture according to claim 1, characterized in that: The positioning component includes a moving groove (51) on one side of the moving seat (26), a moving block (52) connected to the moving groove (51), a first screw (53) connected to the moving block (52), a third motor (54) fixedly connected to the top of the first screw (53), a positioning seat (55) fixedly connected to one side of the moving block (52), and a second positioning groove (56) on the bottom of the positioning seat (55). The moving block (52) is slidably connected to the moving groove (51), the first screw (53) is screwed to the moving block (52), and the first screw (53) is rotatably connected to the moving seat (26).

5. The automotive radiator pipe bending fixture according to claim 1, characterized in that: The processing table (1) has a guide groove (61) on its top, and the bottom of the movable seat (26) is fixedly connected to a guide block (62), which is slidably connected to the guide groove (61).

6. The automotive radiator pipe bending fixture according to claim 1, characterized in that: A protective cover (71) is fixedly connected to one side of the top of the processing table (1). The protective cover (71) is located outside the gear (24) and rack (25). The rotating shaft (22) is rotatably connected to the protective cover (71).

7. The automotive radiator pipe bending fixture according to claim 3, characterized in that: The movable frame (43) has a guide rod (81) fixedly connected to its front side. The guide rod (81) passes through the fixed plate (41) and is slidably connected to the fixed plate (41).