A type of aluminum bending machine
The automatic clamping system driven by cylinders and infrared sensors, along with the mold changing mechanism driven by a motor, solves the problems of clamping point control and mold changing in aluminum bending machines, thereby improving processing accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING UNISON AUTOMOTIVE TECH CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-31
AI Technical Summary
Existing aluminum bending machines rely on manual operation during fixing and mold replacement, which makes it difficult to control the height of the clamping point, resulting in problems such as tilting and extrusion of aluminum materials and time-consuming mold replacement.
The system uses a cylinder-driven fixing block and an infrared sensor in conjunction with an electric push rod and a rack and pinion transmission system to automatically adjust the clamping point height, and enables quick mold changes through a motor-driven threaded rod and threaded column.
It enables automatic adjustment of aluminum clamping points, avoids human error, and improves the precision of aluminum processing and the efficiency of mold replacement.
Smart Images

Figure CN224574424U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts manufacturing technology, specifically to an aluminum bending machine. Background Technology
[0002] The pursuit of "lightweight, high performance, and low energy consumption" in automobile production has driven the large-scale application of aluminum materials, and aluminum bending technology is the core means to realize the use of aluminum materials in the forming of automobile parts.
[0003] Existing aluminum bending machines require the aluminum material to be fixed before use. However, this fixing process is entirely manual, requiring manual adjustment of the aluminum material's position to ensure that the clamping points at both ends of the aluminum material are at the same height. However, it is extremely difficult for humans to control this, which may result in different clamping point heights at both ends, leading to tilting and compression of the aluminum material and waste of raw materials. In addition, different bending dies are required when bending different parts, and changing the bending dies is extremely time-consuming. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides an aluminum bending machine that has the advantages of eliminating the need for manual adjustment of clamping points and facilitating the replacement of bending dies, thus solving the problems mentioned in the background art.
[0005] This utility model provides the following technical solution: an aluminum bending machine, comprising a fixed platform, a rotating arm rotatably connected to the outer wall of the fixed platform, a cylinder fixedly mounted on the top of the rotating arm, a fixed block fixedly mounted on the telescopic end of the cylinder, a bending die provided on the top of the fixed platform, a support frame slidably connected to the inner wall of the fixed platform, an infrared sensor fixedly mounted on the top of the fixed block, a top plate and a limiting post fixedly mounted on the inner wall of the fixed block, a clamping plate slidably connected to the inner wall of the fixed block, an electric push rod fixedly mounted on the outer wall of the fixed block, and a clamping plate fixedly mounted on the outer wall of the clamping plate. The device is equipped with a rack and pinion, and a gear is rotatably connected to the inner wall of the fixed block. A motor is fixedly installed on the inner wall of the fixed platform, and a threaded column is fixedly installed on the output shaft of the motor. A lifting frame is fixedly installed at the bottom of the support frame, and an extension block is fixedly installed at the bottom of the bending die. A motor is fixedly installed on the outside of the fixed platform, and a threaded rod is fixedly installed on the output shaft of the motor. A limit rod is fixedly installed on the inner wall of the fixed platform, and a sliding plate is slidably connected to the inner wall of the fixed platform. A fixed plate is fixedly installed on the top of the sliding plate, and an extrusion block is fixedly installed on the outer wall of the fixed plate.
[0006] As a preferred technical solution of this utility model: the number of limiting posts is two, and the two limiting posts penetrate the clamping plate, and the two limiting posts and the clamping plate are slidably connected.
[0007] As a preferred technical solution of this utility model: there are two clamping plates and racks, and the two clamping plates are symmetrically arranged on the inner wall of the fixing block, and the two racks are respectively located on the upper and lower sides of the gear.
[0008] As a preferred technical solution of this utility model: the threaded column passes through the lifting frame, and the threaded column and the lifting frame are connected by threads.
[0009] As a preferred technical solution of this utility model: the threaded rod passes through the sliding plate, and the threaded rod and the sliding plate are threadedly connected.
[0010] As a preferred technical solution of this utility model: the inner wall heights of the extrusion block and the extension block are the same, and the outer wall of the extrusion block is at an angle, with the narrowest end of the outer wall of the extrusion block being opposite to the inner wall of the extension block.
[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This aluminum bending machine works by placing the aluminum material on top of a support frame. Two cylinders then move two fixed blocks, which cover both ends of the aluminum material. When the ends of the aluminum material are in contact with the top plate of the inner wall of the two fixed blocks, two infrared sensors detect the aluminum material below and activate two electric push rods. These electric push rods then move the clamping plates, and through the cooperation of two racks and gears, the clamping plates on both sides move simultaneously, thus clamping both ends of the aluminum material. At this time, the motor starts, and the cooperation between the motor and the lifting frame moves the support frame downward, thus moving the support frame to the inner wall of the fixed platform, eliminating the need for manual adjustment of the clamping points.
[0012] 2. This aluminum bending machine aligns the extension block at the bottom of the bending die with the inner wall of the top of the fixed platform, moving the bending die until it is flush with the top of the fixed platform. At this point, the inner wall of the extension block is at the same height as the extrusion block. Then, by starting motor two, motor two drives the threaded rod to rotate, which in turn drives the sliding plate to move. This causes the sliding plate to move the extrusion block, making the inclined surface of the extrusion block flush with the inner wall of the extension block. This causes the extension block to be extruded and fixed, thus fixing the bending die and completing the replacement of the bending die. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the fixing block of this utility model; Figure 3 This is a schematic diagram of the rack structure of this utility model; Figure 4 This is a schematic diagram of the cross-sectional structure of the fixed platform of this utility model; Figure 5 This is a schematic diagram of the sliding plate structure of this utility model; Figure 6 This is a schematic diagram of the cross-sectional structure of the extension block of this utility model.
[0014] In the diagram: 1. Fixed platform; 2. Rotating arm; 3. Cylinder; 4. Fixed block; 5. Bending die; 6. Support frame; 7. Infrared sensor; 8. Top plate; 9. Limiting post; 10. Clamping plate; 11. Electric push rod; 12. Rack; 13. Gear; 14. Motor 1; 15. Threaded post; 16. Lifting frame; 17. Extension block; 18. Motor 2; 19. Threaded rod; 20. Limiting rod; 21. Sliding plate; 22. Fixed plate; 23. Extrusion block. Detailed Implementation
[0015] 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.
[0016] Please see Figure 1 - Figure 6 An aluminum bending machine includes a fixed platform 1, a rotating arm 2 rotatably connected to the outer wall of the fixed platform 1, a cylinder 3 fixedly mounted on the top of the rotating arm 2, a fixed block 4 fixedly mounted on the telescopic end of the cylinder 3, a bending die 5 on the top of the fixed platform 1, a support frame 6 slidably connected to the inner wall of the fixed platform 1, an infrared sensor 7 fixedly mounted on the top of the fixed block 4, a top plate 8 and a limiting post 9 fixedly mounted on the inner wall of the fixed block 4, a clamping plate 10 slidably connected to the inner wall of the fixed block 4, an electric push rod 11 fixedly mounted on the outer wall of the fixed block 4, a rack 12 fixedly mounted on the outer wall of the clamping plate 10, and a bending die 5 on the top of the fixed platform 1. The inner wall of the fixed block 4 is equipped with a bending die 5. The wall is rotatably connected to a gear 13. A motor 14 is fixedly installed on the inner wall of the fixed platform 1. A threaded column 15 is fixedly installed on the output shaft of the motor 14. A lifting frame 16 is fixedly installed at the bottom of the support frame 6. An extension block 17 is fixedly installed at the bottom of the bending die 5. A motor 28 is fixedly installed on the outside of the fixed platform 1. A threaded rod 19 is fixedly installed on the output shaft of the motor 28. A limit rod 20 is fixedly installed on the inner wall of the fixed platform 1. A sliding plate 21 is slidably connected to the inner wall of the fixed platform 1. A fixed plate 22 is fixedly installed on the top of the sliding plate 21. An extrusion block 23 is fixedly installed on the outer wall of the fixed plate 22.
[0017] In the above structure, the sliding plate 21 is penetrated by the limiting rod 20, so that the limiting rod 20 limits the position of the sliding plate 21, thereby preventing the sliding plate 21 from detaching from the outer wall of the limiting rod 20 when it moves, and thus preventing the sliding plate 21 from tilting when it moves.
[0018] In a preferred embodiment, there are two limiting posts 9, and the two limiting posts 9 pass through the clamping plate 10, and the two limiting posts 9 are slidably connected to the clamping plate 10.
[0019] In the above structure, the clamping plate 10 is penetrated by two limiting posts 9, so that the clamping plate 10 can only slide on the outer wall of the two limiting posts 9 when it moves, thereby limiting the movement of the clamping plate 10 and preventing the clamping plate 10 from tilting when it moves.
[0020] In a preferred embodiment, there are two clamping plates 10 and two racks 12, with the two clamping plates 10 symmetrically arranged on the inner wall of the fixing block 4, and the two racks 12 located on the upper and lower sides of the gear 13 respectively.
[0021] In the above structure, the electric actuator 11 is activated, causing the clamping plate 10 outside its telescopic end to move. This causes the clamping plate 10 to move the rack 12 on its outer wall. The rack 12 meshes with the gear 13, causing the gear 13 to rotate. This causes the gear 13 to move the rack 12 on the other side, so that the two racks 12 move the two clamping plates 10 inward or outward at the same time.
[0022] In a preferred embodiment, the threaded post 15 passes through the lifting frame 16, and the threaded post 15 and the lifting frame 16 are threadedly connected.
[0023] In the above structure, by starting the motor 14, the motor 14 drives the threaded column 15 to rotate, and the threaded column 15 drives the lifting frame 16 to move through the threaded connection with the lifting frame 16, and the lifting frame 16 drives the support frame 6 to move.
[0024] In a preferred embodiment, the threaded rod 19 passes through the sliding plate 21, and the threaded rod 19 and the sliding plate 21 are threadedly connected.
[0025] In the above structure, the starting of motor 18 causes the threaded rod 19 to rotate, which in turn causes the threaded rod 19 to move through the threaded connection with the sliding plate 21, which in turn causes the sliding plate 21 to move the top fixed plate 22 and the pressing block 23.
[0026] In a preferred embodiment: the inner wall heights of the extrusion block 23 and the extension block 17 are the same, and the outer wall of the extrusion block 23 is at an angle, with the narrowest end of the outer wall of the extrusion block 23 being positioned opposite to the inner wall of the extension block 17.
[0027] In the above structure, the movement of the extrusion block 23 toward the extension block 17 causes the narrowest end of the outer wall of the extrusion block 23 to move toward the inner wall of the extension block 17. As the inclined surface of the outer wall of the extrusion block 23 gradually enters, the outer wall of the extrusion block 23 and the inner wall of the extension block 17 eventually come into contact, thereby causing the extrusion block 23 to press the inner wall of the extension block 17, fixing the position of the extension block 17, and thus fixing the position of the bending die 5.
[0028] Working Principle: When using the equipment, aluminum material is placed on the inner wall of the support frame 6, which supports the aluminum material. At this time, two cylinders 3 are activated, causing them to move two fixed blocks 4 towards the center, allowing both ends of the aluminum material to enter the inner wall of the fixed blocks 4. When both ends of the aluminum material are in contact with the top plate 8 of the inner wall of the two fixed blocks 4, the infrared sensor 7 detects the position of the aluminum material and activates the electric push rod 11. This causes the electric push rod 11 to move the clamping plate 10 on its telescopic end, which in turn moves the rack 12 on its outer wall. The rack 12 meshes with the gear 13, causing the gear 13 to rotate. This, in turn, causes the gear 13 to move the rack 12 on the other side, resulting in both racks 12 moving the two clamping plates 10 towards both sides of the aluminum material. This allows the two clamping plates 10 to hold the aluminum material in place. The material is clamped, and motor 14 starts, causing the threaded column 15 to rotate. This causes the threaded column 15 to move the lifting frame 16, which in turn moves the support frame 6 to the inside of the fixed platform 1. At this time, the rotating arm 2 can be started, so that the rotating arm 2 can work with the bending die 5 to bend the aluminum material. When the bending die 5 needs to be replaced, motor 18 is started, which causes the threaded rod 19 to rotate. This causes the threaded rod 19 to move the sliding plate 21 through the threaded connection with the sliding plate 21. This causes the sliding plate 21 to move the top fixed plate 22 and the extrusion block 23, causing the inner wall of the extrusion block 23 to separate from the inner wall of the extension block 17. This causes the fixed relationship of the extension block 17 to disappear. At this time, the bending die 5 can be removed and replaced. After replacement, the structure can be reset.
[0029] 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. An aluminum material stretch bending machine comprising a fixed table (1), characterized in that: A rotating arm (2) is rotatably connected to the outer wall of the fixed platform (1). A cylinder (3) is fixedly installed on the top of the rotating arm (2). A fixed block (4) is fixedly installed on the telescopic end of the cylinder (3). A bending mold (5) is provided on the top of the fixed platform (1). A support frame (6) is slidably connected to the inner wall of the fixed platform (1). An infrared sensor (7) is fixedly installed on the top of the fixed block (4). A top plate (8) and a limiting post (9) are fixedly installed on the inner wall of the fixed block (4). A clamping plate (10) is slidably connected to the inner wall of the fixed block (4). An electric push rod (11) is fixedly installed on the outer wall of the fixed block (4). A rack (12) is fixedly installed on the outer wall of the clamping plate (10). A rotatable rod (11) is rotatably connected to the inner wall of the fixed block (4). Gear (13), motor one (14) is fixedly installed on the inner wall of the fixed platform (1), threaded column (15) is fixedly installed on the output shaft of motor one (14), lifting frame (16) is fixedly installed on the bottom of the support frame (6), extension block (17) is fixedly installed on the bottom of the bending die (5), motor two (18) is fixedly installed on the outside of the fixed platform (1), threaded rod (19) is fixedly installed on the output shaft of motor two (18), limit rod (20) is fixedly installed on the inner wall of the fixed platform (1), sliding plate (21) is slidably connected to the inner wall of the fixed platform (1), fixed plate (22) is fixedly installed on the top of the sliding plate (21), and extrusion block (23) is fixedly installed on the outer wall of the fixed plate (22).
2. The aluminum material stretch bending machine according to claim 1, characterized by: The number of the limiting posts (9) is two, and the two limiting posts (9) pass through the clamping plate (10). The two limiting posts (9) and the clamping plate (10) are slidably connected.
3. The aluminum material stretch bending machine according to claim 1, characterized by: The number of clamping plates (10) and racks (12) is two, and the two clamping plates (10) are symmetrically arranged on the inner wall of the fixing block (4), and the two racks (12) are located on the upper and lower sides of the gear (13) respectively.
4. The aluminum material stretch bender according to claim 1, characterized in that: The threaded post (15) passes through the lifting frame (16), and the threaded post (15) and the lifting frame (16) are connected by threads.
5. The aluminum material stretch bender according to claim 1, characterized in that: The threaded rod (19) passes through the sliding plate (21), and the threaded rod (19) and the sliding plate (21) are connected by threads.
6. The aluminum material stretch bender according to claim 1, characterized in that: The inner wall heights of the extrusion block (23) and the extension block (17) are the same, and the outer wall of the extrusion block (23) is at an angle. The narrowest end of the outer wall of the extrusion block (23) is set opposite to the inner wall of the extension block (17).