Bending device for aluminum profile machining

Abstract

The utility model discloses a bending device for aluminum profile machining, relates to the field of aluminum profile machining, and aims to solve the problem that the angle or radian of a pipe deviates from expectation due to the fact that the PU rod rebounds after the pipe is taken down when the PU rod is used for supporting the inner wall of the pipe in an existing bending device. According to the technical scheme, the aluminum pipe bending device is characterized by comprising a base, a lower die is fixedly connected to the base, an aluminum pipe is placed on the lower die, a plurality of electric push rods are fixedly connected to the two sides of the base, an upper die is fixedly connected to the electric push rods, and a protection assembly used for preventing the interior of the aluminum pipe from being excessively twisted is arranged in the aluminum pipe; the lower die is provided with a limiting assembly used for limiting the aluminum pipe. According to the bending device for aluminum profile machining, when an aluminum pipe is bent, the situation that the bent position of the aluminum pipe is shrunken and deformed when the aluminum pipe is bent can be avoided in the mode that the protection assembly is plugged into the aluminum pipe.

Description

Technical Field

[0001] This utility model relates to the field of aluminum processing, and more specifically, it relates to a bending device for aluminum profile processing. Background Technology

[0002] Aluminum tubes are widely used in refrigeration, aerospace, and automotive manufacturing due to their advantages such as light weight, high strength, and corrosion resistance. Bending and forming is one of the key processes in aluminum tube manufacturing.

[0003] The patent with publication number CN220635932U discloses a bending mechanism for processing metal products, including a base, a bending die slidably connected to the top of the base, several support rods fixedly connected to the top of the base, a positioning plate fixedly connected to the top of the support rods, an adjusting block slidably connected to the bottom of the positioning plate, a supporting component provided on one side of the adjusting block, a hydraulic cylinder fixedly connected inside the base, a hydraulic rod slidably connected inside the hydraulic cylinder, a driving plate fixedly connected to the top of the hydraulic rod, several driving rods hinged to the side of the driving plate, and fixed seats fixedly connected to both sides of the base.

[0004] The bending mechanism in the above solution can simultaneously support and limit the inner and outer walls of the metal pipe at the bend, preventing the metal pipe from collapsing and deforming during bending, thus avoiding a decrease in the strength of the metal pipe due to collapsing and deformation and affecting its service life. However, this bending mechanism uses a PU elastic rod to support and limit the inner wall of the metal pipe at the bend. The PU elastic rod will undergo compression deformation during the bending process. After the pipe is removed, the rebound of the PU elastic rod may cause the pipe angle or curvature to deviate from the expected value.

[0005] Therefore, a new solution is needed to address this problem. Utility Model Content

[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a bending device for aluminum profile processing. When bending aluminum tubes, a protective component can be inserted into the aluminum tube to prevent the aluminum tube from collapsing or deforming at the bending point. Furthermore, a limiting component can restrict the position of the aluminum tube to prevent it from dislodging during the bending process.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a bending device for processing aluminum profiles includes a base, a lower mold fixedly connected to the base, an aluminum tube placed on the lower mold, a plurality of electric push rods fixedly connected to both sides of the base, an upper mold fixedly connected to the plurality of electric push rods, a protective component for preventing excessive twisting inside the aluminum tube, and a limiting component for restricting the aluminum tube on the lower mold.

[0008] The present invention is further configured such that: the protective component includes several protective blocks detachably connected inside the aluminum tube and a limiting ball fixedly connected to one end of the protective block; the other end of the protective block is provided with a spherical groove into which the limiting ball can be inserted; adjacent protective blocks are rotatably fitted into the spherical groove of the preceding protective block through the limiting ball on the following protective block to form a chain connection; the upper mold is provided with a driving component for driving the protective blocks to move.

[0009] The present invention is further configured such that: the driving component includes a motor fixedly connected to the upper mold, a winding drum fixedly connected to the motor output shaft, and a connecting rope wound on the winding drum; the other end of the connecting rope is fixedly connected to the first end protective block located at the end of the chain connection.

[0010] The present invention is further configured such that: a positioning disc is slidably connected to the connecting rope, the positioning disc has elastic deformation capability, and a hemispherical block is fixedly connected to the protective block at the tail end of the chain connection.

[0011] The present invention is further configured such that: the limiting component includes a positioning frame connected to the lower mold, a positioning rod fixedly connected to the positioning frame, a positioning block rotatably connected to the positioning rod, and a fixing plate fixedly connected to the positioning block, wherein the fixing plate has elastic deformation capability.

[0012] The present invention is further configured such that: torsion springs are fixedly connected to both sides of the positioning block, and the other ends of the two torsion springs are respectively fixedly connected to the positioning frame, and the torsion springs are sleeved on the positioning rod.

[0013] The present invention is further configured such that: the positioning frame is slidably connected to the lower mold, and a threaded rod is threadedly connected to the lower mold, and the threaded rod is rotatably connected to the positioning frame.

[0014] In summary, this utility model has the following beneficial effects: when bending aluminum tubes, several chain-connected protective blocks can be inserted into the aluminum tube to prevent the aluminum tube from collapsing and deforming at the bending point. In addition, the position of the aluminum tube can be restricted by the fixing plate to prevent the aluminum tube from dislodging during the bending process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 A cross-sectional view of this utility model Figure 1 ;

[0017] Figure 3 A cross-sectional view of this utility model Figure 2 ;

[0018] Figure 4 for Figure 3Enlarged schematic diagram of part A;

[0019] Figure 5 This is an exploded view of the present invention.

[0020] In the diagram: 1. Base; 2. Lower mold; 3. Aluminum tube; 4. Electric push rod; 5. Upper mold; 6. Protective block; 7. Limit ball; 8. Spherical groove; 9. Motor; 10. Winding drum; 11. Connecting rope; 12. Positioning plate; 13. Hemispherical block; 14. Positioning frame; 15. Positioning rod; 16. Positioning block; 17. Fixed plate; 18. Torsion spring; 19. Threaded rod. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] A bending device for aluminum profile processing, such as Figures 1-5 As shown, the device includes a base 1, a lower mold 2 fixedly connected to the base 1, an aluminum tube 3 placed on the lower mold 2, several electric push rods 4 fixedly connected to both sides of the base 1, and an upper mold 5 fixedly connected to the several electric push rods 4. The aluminum tube 3 is provided with a protective component to prevent excessive twisting inside the aluminum tube 3. The lower mold 2 is provided with a limiting component to restrict the aluminum tube 3. The protective component includes several protective blocks 6 detachably connected inside the aluminum tube 3 and a limiting ball 7 fixedly connected to one end of the protective block 6. The other end of the protective block 6 is provided with a spherical groove 8 into which the limiting ball 7 can be inserted. Adjacent protective blocks 6 can be rotatably fitted into the spherical groove 8 of the previous protective block 6 through the limiting ball 7 on the subsequent protective block 6 to form a chain connection. The upper mold 5 is provided with a driving component to drive the movement of the protective blocks 6. The driving component includes a motor 9 fixedly connected to the upper mold 5, a winding drum 10 fixedly connected to the output shaft of the motor 9, and a connecting rope 11 wound on the winding drum 10. The other end of the connecting rope 11 is fixedly connected to the first protective block 6 located at the end of the chain connection.

[0023] like Figures 1-5As shown, when bending the aluminum tube 3, first connect the aluminum tube 3 to the limiting component, then start the motor 9 to release the connecting rope 11 according to the bending position, and place several protective blocks 6 into the aluminum tube 3. Next, start the electric push rod 4 to retract. During the retraction of the electric push rod 4, the connecting rope 11 will no longer pull the protective blocks 6, and the protective blocks 6 will slide downwards due to gravity. Then, as the electric push rod 4 continues to retract, the upper mold 5 will come into contact with the aluminum tube 3, bending the aluminum tube 3. When the upper mold 5 and the lower mold 2 come into contact with each other, the aluminum tube 3 is bent. During the bending process, the limiting balls 7 on the protective blocks 6 will rotate in the adjacent spherical grooves 8, that is... Several protective blocks 6, connected in a chain, are bent together with the aluminum tube 3. During the bending process, the inner wall of the aluminum tube 3 will always be in contact with the protective blocks 6, thus preventing the aluminum tube 3 from collapsing or deforming at the bend. After confirming that the bending is complete, the motor 9 is started to wind the connecting rope 11. At this time, several protective blocks 6 will be pulled out from the aluminum tube 3. During the pulling process, if there are any small dents in the aluminum tube 3, they will be smoothed out by the protective blocks 6. When several protective blocks 6 are no longer in contact with the aluminum tube 3, the electric push rod 4 can be started to extend the tube. At this time, the upper mold 5 will no longer be in contact with the aluminum tube 3. Then, the aluminum tube 3 and the limiting components are separated and the aluminum tube 3 is removed to complete the bending operation.

[0024] like Figure 1 , Figure 3 , Figure 5 As shown, a positioning disc 12 is slidably connected to the connecting rope 11. The positioning disc 12 has elastic deformation capability. After the limiting component is connected to the aluminum tube 3, the positioning disc 12 is inserted into the other end of the aluminum tube 3, which makes it easier to remove the connecting rope 11. A hemispherical block 13 is fixedly connected to the tail end protection block 6 at the end of the chain connection, which makes it easier for the several protection blocks 6 of the chain connection to enter the aluminum tube 3.

[0025] like Figures 2-4 As shown, the limiting components include a positioning frame 14 connected to the lower mold 2, a positioning rod 15 fixedly connected to the positioning frame 14, a positioning block 16 rotatably connected to the positioning rod 15, and a fixing plate 17 fixedly connected to the positioning block 16. The fixing plate 17 has elastic deformation capability. When it is necessary to limit the aluminum tube 3, the positioning plate 12 is rotated first and then inserted into one end of the aluminum tube 3. Subsequently, the fixing plate 17 will expand and reset and come into contact with the aluminum tube 3. At this time, when bending, the fixing plate 17 will rotate with the deformed aluminum tube 3 to limit the aluminum tube 3 in real time and prevent the aluminum tube 3 from dislodging during the bending process.

[0026] like Figure 4As shown, torsion springs 18 are fixedly connected to both sides of the positioning block 16. The other ends of the two torsion springs 18 are fixedly connected to the positioning frame 14. The torsion springs 18 are sleeved on the positioning rod 15. When the upper mold 5 and the lower mold 2 are in contact with each other, the fixing plate 17 will rotate. At this time, the torsion spring 18 is in a deformed state. When the bent aluminum tube 3 is removed, the fixing plate 17 is no longer restricted by the aluminum tube 3, and the torsion spring 18 will reset, making it convenient for the fixing plate 17 to connect with the new aluminum tube 3.

[0027] like Figures 1-4 As shown, the positioning frame 14 is slidably connected to the lower mold 2. The lower mold 2 is threaded with a threaded rod 19, which is rotatably connected to the positioning frame 14. When it is necessary to bend the aluminum tube 3 at different positions, the threaded rod 19 can be rotated to make the positioning frame 14 slide on the lower mold 2, thereby driving the fixed plate 17 to move, thus improving the adaptability of the device.

[0028] Working principle: When the aluminum tube 3 needs to be bent, first connect the aluminum tube 3 to the fixed plate 17, then rotate the threaded rod 19 according to the required bending position of the aluminum tube 3, and then start the motor 9 to release the connecting rope 11 according to the bending position, and put several protective blocks 6 into the aluminum tube 3. Then start the electric push rod 4 to retract. During the retraction of the electric push rod 4, the connecting rope 11 will no longer pull the protective blocks 6, and the protective blocks 6 will slide downward due to gravity. Then, as the electric push rod 4 continues to retract, the upper mold 5 will come into contact with the aluminum tube 3 and bend the aluminum tube 3. When the upper mold 5 and the lower mold 2 come into contact with each other, the aluminum tube 3 is bent. During the bending process, the limiting balls 7 on several protective blocks 6 will rotate in the adjacent spherical grooves 8. That is, the several protective blocks 6, which are connected in a chain, will bend together with the aluminum tube 3. At this time, the inner wall of the aluminum tube 3 will always be in contact with the protective blocks 6 during the bending process, so as to avoid the aluminum tube 3 from being dented and deformed at the bending point. After confirming that the bending is complete, start the motor 9 to wind the connecting rope 11. At this time, several protective blocks 6 will be pulled out from the aluminum tube 3. During the pulling process, if there is a slight dent in the aluminum tube 3, it will be smoothed out by the protective blocks 6, and the positioning plate 12 will be pushed out by the protective blocks 6 and will no longer be in contact with the aluminum tube 3. When several protective blocks 6 are no longer in contact with the aluminum tube 3, the electric push rod 4 can be started to extend. At this time, the upper mold 5 will no longer be in contact with the aluminum tube 3. Then, separate the aluminum tube 3 and the fixing plate 17 and remove the aluminum tube 3 to complete the bending operation.

[0029] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A bending device for aluminum profile machining, comprising a base (1), characterized in that: The base (1) is fixedly connected with a lower mold (2), the lower mold (2) is placed with an aluminum pipe (3), the base (1) is fixedly connected with a plurality of electric push rods (4), a plurality of the electric push rods (4) are fixedly connected with an upper mold (5), the aluminum pipe (3) is provided with a protection assembly for preventing the aluminum pipe (3) from being excessively twisted, and the lower mold (2) is provided with a limiting assembly for limiting the aluminum pipe (3).

2. The bending device for aluminum profile machining according to claim 1, characterized in that: The protection assembly comprises a plurality of protection blocks (6) detachably connected in the aluminum pipe (3) and a limiting ball (7) fixedly connected to one end of the protection block (6), the other end of the protection block (6) is provided with a spherical groove (8) for accommodating the limiting ball (7), adjacent protection blocks (6) are rotatably embedded in the spherical groove (8) of the previous protection block (6) through the limiting ball (7) on the latter protection block (6) to form a chain connection, and the upper mold (5) is provided with a driving member for driving the protection block (6) to move.

3. The bending device for processing aluminum profiled material according to claim 2, characterized in that: The driving member comprises a motor (9) fixedly connected to the upper mold (5), a winding drum (10) fixedly connected to the output shaft of the motor (9), and a connecting rope (11) wound on the winding drum (10), and the other end of the connecting rope (11) is fixedly connected with the first protection block (6) at the end of the chain connection.

4. The bending device for aluminum profile machining according to claim 3, characterized in that: The connecting rope (11) is slidably connected with a positioning disc (12), the positioning disc (12) has elastic deformation ability, and the last protection block (6) at the end of the chain connection is fixedly connected with a hemispherical block (13).

5. The bending device for aluminum profile machining according to claim 1, characterized in that: The limiting assembly comprises a positioning frame (14) connected to the lower mold (2), a positioning rod (15) fixedly connected to the positioning frame (14), a positioning block (16) rotatably connected to the positioning rod (15), and a fixed disc (17) fixedly connected to the positioning block (16), and the fixed disc (17) has elastic deformation ability.

6. The bending device for machining aluminum profile according to claim 5, characterized in that: The positioning block (16) is fixedly connected with a torsional spring (18) on both sides, and the other end of the two torsional springs (18) is fixedly connected to the positioning frame (14), respectively, and the torsional spring (18) is sleeved on the positioning rod (15).

7. The bending device for processing aluminum profiled material according to claim 5, characterized in that: The positioning frame (14) is slidably connected with the lower mold (2), the lower mold (2) is threadedly connected with a threaded rod (19), and the threaded rod (19) is rotatably connected with the positioning frame (14).

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