Clamps for bending and chamfering aluminum tubes for car bodies

Abstract

This utility model discloses a clamp for bending and chamfering aluminum tubes used in vehicle bodies, relating to the field of clamping technology. It includes a base on which a tube body is mounted. A bending assembly is movably connected to the base for bending the tube body. An auxiliary assembly is fixedly connected to the base to prevent deformation of the tube body during bending. A cleaning assembly is fixedly connected to the base to remove impurities and particles from the tube body. The cleaning assembly includes a set of obliquely symmetrical cleaning blocks, with the tube body movably connected between the cleaning blocks. Through the cleaning assembly, the inner sides of the cleaning blocks are brought into contact with the outer sides of the tube body. The tube body is moved between the two cleaning blocks by a feeding mechanism. The sliding friction between the tube body and the cleaning blocks removes impurities and particles from the tube body surface, preventing damage to the tube body surface and affecting its quality during clamping.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and more specifically to a clamping fixture for bending and chamfering aluminum tubes for vehicle bodies. Background Technology

[0002] Aluminum tube bending and chamfering fixture for car bodies is a specialized fixture device used for bending and chamfering aluminum tubes for car bodies. This fixture controls the feeding and rotation of the aluminum tube through a feeding mechanism, and works in conjunction with a bending assembly to achieve precise bending. Simultaneously, auxiliary components prevent deformation of the aluminum tube, ensuring processing quality. This type of fixture has important applications in automotive manufacturing, lightweight car body construction, and metal processing, significantly improving aluminum tube processing efficiency and forming accuracy.

[0003] However, aluminum tubes are prone to local deformation or twisting during bending due to their material properties, which affects the forming accuracy. At the same time, incomplete cleaning of impurities on the surface of aluminum tubes may cause scratches on the surface during clamping or bending, thereby affecting the assembly performance and aesthetics of the body parts. Therefore, a clamp for bending and chamfering aluminum tubes for bodywork is needed to solve the existing shortcomings. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing methods, such as the easy occurrence of local deformation or twisting of the pipe during bending, which affects the forming accuracy, and the incomplete cleaning of impurities on the pipe surface, which leads to damage to the pipe surface during clamping or bending. To achieve the above objectives, the present invention adopts the following technical solution: A clamp for bending and chamfering aluminum tubes for vehicle bodies includes a base on which a tube body is mounted. A bending assembly is movably connected to the base for bending the tube body. An auxiliary assembly is fixedly connected to the base to prevent the tube body from deforming during bending. A cleaning assembly is fixedly connected to the base to clean impurities and particles from the tube body. The cleaning assembly includes a set of obliquely symmetrical cleaning blocks, and the tube body is movably connected between the cleaning blocks.

[0005] Furthermore, the pipe bending assembly includes a rotating column, a bending wheel, a pressure block, a fixed seat, and a cylinder. The top of the rotating column is fixedly connected to the bending wheel, the fixed seat is fixedly connected to the outside of the rotating column, the cylinder is fixedly connected to the top of the fixed seat, and the extension end of the cylinder is fixedly connected to the pressure block. Both the bending wheel and the pressure block are provided with mold grooves, and the mold grooves are used for clamping and bending the pipe body.

[0006] Furthermore, the rotating column is movably connected to the base, and a servo motor is fixedly connected inside the base, with the output end of the servo motor fixedly connected to the bottom end of the rotating column.

[0007] Furthermore, the auxiliary component includes a movable base, an auxiliary block, cylinder two, and cylinder three. The movable base is slidably connected to the top of the base, the auxiliary block is slidably connected to the movable base, cylinder two is fixedly connected to the top of the base, and the telescopic end of cylinder two is fixedly connected to the movable base. Cylinder three is fixedly connected to the movable base, and the telescopic end of cylinder three is fixedly connected to the auxiliary block. The front side of the auxiliary block is provided with a mold groove that matches the outer side of the tube body.

[0008] Furthermore, the cleaning assembly also includes a guide frame, a connecting rod, a drive column, and a cam. The drive column is symmetrically arranged about the origin of the cam axis, and the bottom end of each drive column is fixedly connected to the top end of the cam. The guide frame is symmetrically arranged, and the top end of each guide frame is fixedly connected to a connecting rod. The top end of each drive column is movably connected to the bottom end of the guide frame.

[0009] Furthermore, the back side of the cleaning block is slotted and movable to the top of the connecting rod, the top of the connecting rod is threaded with a limit bolt, the back side of the cleaning block is provided with a limit hole, and the front end of the limit bolt is adapted to the limit hole.

[0010] Furthermore, the cam is movably connected to the interior of the base via a rotating shaft, and the guide frame and connecting rod are slidably connected to the base. A second servo motor is fixedly connected inside the base, and the output end of the second servo motor is fixedly connected to the bottom end of the rotating shaft of the cam.

[0011] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a clamp for bending and chamfering aluminum tubes for vehicle bodies, which has the following beneficial effects: This utility model, through the setting of the pipe bending assembly, under the action of the fixed seat, the bending wheel and the pressure block rotate synchronously, and the pipe body is bent into shape along the arc of the mold groove of the bending wheel. During the bending process of the pipe body, the cylinder three is activated to control the auxiliary block to slide along the moving seat, so that the auxiliary block moves along the direction of the pipe body's advance, thereby assisting the pipe body in bending and ensuring that the pipe body does not deform during the bending process, thus improving the bending quality of the pipe body.

[0012] This invention uses a cleaning component to ensure that the inner side of the cleaning block is in contact with the outer side of the tube body. The tube body is moved between the two cleaning blocks by a feeding mechanism. Through the sliding friction between the tube body and the cleaning block, impurity particles on the surface of the tube body are removed, thus preventing impurity particles from damaging the surface of the tube body and affecting its quality when the tube body is clamped. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the main component structure of this utility model; Figure 3 This utility model Figure 2 Another perspective structural diagram; Figure 4 This is a schematic diagram of the exploded structure of the cleaning component of this utility model; Figure 5 This is a schematic diagram of the actual application structure of this utility model.

[0015] in: 1. Base; 2. Pipe body; 3. Pipe bending assembly; 301. Rotating column; 302. Bending wheel; 303. Pressing block; 304. Fixed seat; 305. Cylinder 1; 4. Auxiliary assembly; 401. Moving seat; 402. Auxiliary block; 403. Cylinder 2; 404. Cylinder 3; 5. Cleaning assembly; 501. Cleaning block; 502. Guide frame; 503. Connecting rod; 504. Drive column; 505. Cam; 506. Limit bolt; 6. Servo motor 1; 7. Limit hole; 8. Servo motor 2; 9. Heating coil; 10. Chamfering machine. Detailed Implementation

[0016] 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.

[0017] Example 1: like Figure 1-5As shown, this utility model provides a technical solution: a clamp for bending and chamfering aluminum tubes for car bodies, including a base 1, a tube body 2 disposed on the base 1, and a feeding mechanism installed on the base 1 for controlling the forward movement and rotation of the tube body 2, which is a common solution. A bending assembly 3 is movably connected to the base 1 for bending the tube body 2. An auxiliary assembly 4 is fixedly connected to the base 1 to prevent the tube body 2 from deforming during bending. A cleaning assembly 5 is fixedly connected to the base 1 for cleaning impurities and particles on the tube body 2. The cleaning assembly 5 includes a set of obliquely symmetrical cleaning blocks 501, and the tube body 2 is movably connected between the cleaning blocks 501. The inner side of the cleaning blocks 501 is made of flexible material, which can better clean the surface of the tube body 2. The cleaning blocks 501 are obliquely symmetrically arranged, which can more comprehensively cover the periphery of the tube body 2.

[0018] Example 2: like Figure 1 and Figure 2 As shown, the pipe bending assembly 3 includes a rotating column 301, a bending wheel 302, a pressure block 303, a fixed base 304, and a cylinder 305. The bending wheel 302 is fixedly connected to the top of the rotating column 301. The fixed base 304 is fixedly connected to the outside of the rotating column 301. The cylinder 305 is fixedly connected to the top of the fixed base 304, and the pressure block 303 is fixedly connected to the telescopic end of the cylinder 305. Both the bending wheel 302 and the pressure block 303 have mold grooves for clamping and bending the pipe body 2. The bending wheel 302 is worm gear shaped. The mold grooves on the bending wheel 302 and the pressure block 303 cooperate with each other to completely wrap the pipe body 2. The rotating column 301 is movably connected to the base 1. The base 1 has a servo motor 6 fixedly connected inside, and the output end of the servo motor 6 is fixedly connected to the bottom end of the rotating column 301. The auxiliary component 4 includes a movable base 401, an auxiliary block 402, a second cylinder 403 and a third cylinder 404. The movable base 401 is slidably connected to the top of the base 1. The auxiliary block 402 is slidably connected to the movable base 401. The second cylinder 403 is fixedly connected to the top of the base 1, and the telescopic end of the second cylinder 403 is fixedly connected to the movable base 401. The third cylinder 404 is fixedly connected to the movable base 401, and the telescopic end of the third cylinder 404 is fixedly connected to the auxiliary block 402. The front side of the auxiliary block 402 is provided with a mold groove that is adapted to the outer side of the tube body 2.

[0019] When the tube 2 is moved between the bending wheel 302 and the pressure block 303, the pressure block 303 is moved closer to the bending wheel 302 by the cylinder 305 until the bending wheel 302 and the pressure block 303 cooperate to clamp the outer side of the tube 2. Then, the cylinder 403 is activated to push the moving seat 401 to slide along the top of the base 1 until the front mold groove of the auxiliary block 402 fits against the outer side of the tube 2. Then, the servo motor 6 is activated to drive the rotating column 301 to rotate. Under the action of the fixed seat 304, the bending wheel 302 and the pressure block 303 rotate synchronously, and the tube 2 is bent into shape along the arc of the mold groove of the bending wheel 302. During the bending process of the tube 2, the cylinder 404 is activated to control the auxiliary block 402 to slide along the moving seat 401, so that the auxiliary block 402 moves along the direction of the tube 2's movement, thereby assisting the bending of the tube 2 and ensuring that the tube 2 does not deform during the bending process, thus improving the bending quality of the tube 2.

[0020] Example 3: like Figure 1 and Figure 4 As shown, the cleaning assembly 5 also includes a guide frame 502, a connecting rod 503, a drive column 504, and a cam 505. The drive column 504 is symmetrically arranged about the axis of the cam 505, and the bottom end of each drive column 504 is fixedly connected to the top end of the cam 505. The guide frame 502 is symmetrically arranged, and the top end of each guide frame 502 is fixedly connected to the connecting rod 503. The top end of each drive column 504 is movably connected to the bottom end of the guide frame 502. The back side of the cleaning block 501 is slotted and movably fitted with the top end of the connecting rod 503. The top end of the connecting rod 503 is threadedly connected to a limit bolt 506, and a limit bolt is provided on the back side of the cleaning block 501. Hole 7, and the front end of the limiting bolt 506 is adapted to the limiting hole 7, the cleaning block 501 can be movably installed to the top of the connecting rod 503, and the cleaning block 501 is fixed by the limiting bolt 506 cooperating with the limiting hole 7, so as to facilitate the replacement of the cleaning block 501 and avoid the cleaning effect of the cleaning block 501 decreasing after long-term use. The cam 505 is movably connected to the inside of the base 1 through the rotating shaft, and the guide frame 502 and the connecting rod 503 are slidably connected to the base 1. The servo motor 8 is fixedly connected inside the base 1, and the output end of the servo motor 8 is fixedly connected to the bottom end of the rotating shaft of the cam 505.

[0021] The servo motor 8 is started, driving the cam 505 to rotate around its axis, controlling the two drive columns 504 to rotate around the axis of the cam 505. Since the drive column 504 is in movable engagement with the bottom of the guide frame 502, and the base 1 restricts the movement direction of the guide frame 502 and the connecting rod 503, the two connecting rods 503 are controlled to move closer to the tube body 2 until the inner side of the cleaning block 501 is in contact with the outer side of the tube body 2. The tube body 2 is moved between the two cleaning blocks 501 by the feeding mechanism. Through the sliding friction between the tube body 2 and the cleaning block 501, the impurity particles on the surface of the tube body 2 are removed, preventing the impurity particles from damaging the surface of the tube body 2 when the tube body 2 is clamped, thus affecting the quality of the tube body 2.

[0022] Example 4: like Figure 5 As shown, a low-frequency heating coil 9 is installed on the base 1. The tube 2 is heated after passing through the heating coil 9, which makes it easier for the tube 2 to be bent. A chamfering machine 10 is installed on the base 1. When the tube 2 is bent, the linear guide rail on the base 1 controls the chamfering machine 10 to move toward the tube 2, so that the end of the tube 2 moves into the interior of the chamfering machine 10, thereby performing a chamfering operation on the end of the tube 2.

[0023] Working principle: In use, firstly, the feeding mechanism moves the tube 2 above the base 1, and the tube 2 passes through the opposite side of the cleaning block 501 until the front end of the tube 2 moves between the bending wheel 302 and the pressure block 303. The cylinder 305 controls the pressure block 303 to move closer to the bending wheel 302 until the bending wheel 302 and the pressure block 303 cooperate to clamp the outer side of the tube 2. Then, the cylinder 403 is activated to push the moving seat 401 to slide along the top of the base 1 until the front mold groove of the auxiliary block 402 fits against the outer side of the tube 2. Next, the servo motor 6 is activated to drive the rotating column 301 to rotate. Under the action of the fixed seat 304, the bending wheel 302 and the pressure block 303 rotate synchronously, and the tube 2 is bent into shape along the arc of the mold groove of the bending wheel 302. During the process, cylinder 3 404 is activated, controlling auxiliary block 402 to slide along moving seat 401, so that auxiliary block 402 moves along the direction of tube body 2, thereby assisting tube body 2 in bending; in addition, servo motor 2 8 is activated, driving cam 505 to rotate around its axis, controlling two drive columns 504 to rotate around the axis of cam 505. Since the drive column 504 is in movable cooperation with the bottom of guide frame 502, and the base 1 restricts the movement direction of guide frame 502 and connecting rod 503, the two connecting rods 503 are controlled to move closer to tube body 2 until the inner side of cleaning block 501 is in contact with the outer side of tube body 2. Tube body 2 is moved between the two cleaning blocks 501 by feeding mechanism. Through the sliding friction between tube body 2 and cleaning block 501, the impurity particles on the surface of tube body 2 are removed.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0026] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A clamp for bending and chamfering aluminum tubes for vehicle bodies, comprising a base (1), characterized in that: The base (1) is provided with a tube body (2), and a bending assembly (3) is movably connected to the base (1) for bending the tube body (2). An auxiliary assembly (4) is fixedly connected to the base (1) to prevent the tube body (2) from deforming during bending. A cleaning assembly (5) is fixedly connected to the base (1) for cleaning impurity particles on the tube body (2). The cleaning assembly (5) includes a set of obliquely symmetrical cleaning blocks (501), and the tube body (2) is movably connected between the cleaning blocks (501).

2. The clamp for bending and chamfering aluminum tubes for vehicle bodies according to claim 1, characterized in that: The pipe bending assembly (3) includes a swivel column (301), a bending wheel (302), a pressure block (303), a fixed seat (304), and a cylinder (305). The top end of the swivel column (301) is fixedly connected to the bending wheel (302). The fixed seat (304) is fixedly connected to the outside of the swivel column (301). The cylinder (305) is fixedly connected to the top end of the fixed seat (304), and the extension end of the cylinder (305) is fixedly connected to the pressure block (303). The bending wheel (302) and the pressure block (303) are both provided with mold grooves, and the mold grooves are used to clamp and bend the pipe body (2).

3. The clamp for bending and chamfering aluminum tubes for vehicle bodies according to claim 2, characterized in that: The rotating column (301) is movably connected to the base (1). A servo motor (6) is fixedly connected inside the base (1), and the output end of the servo motor (6) is fixedly connected to the bottom end of the rotating column (301).

4. The clamp for bending and chamfering aluminum tubes for vehicle bodies according to claim 1, characterized in that: The auxiliary component (4) includes a movable seat (401), an auxiliary block (402), a second cylinder (403), and a third cylinder (404). The movable seat (401) is slidably connected to the top of the base (1). The auxiliary block (402) is slidably connected to the movable seat (401). The second cylinder (403) is fixedly connected to the top of the base (1), and the telescopic end of the second cylinder (403) is fixedly connected to the movable seat (401). The third cylinder (404) is fixedly connected to the movable seat (401), and the telescopic end of the third cylinder (404) is fixedly connected to the auxiliary block (402). The front side of the auxiliary block (402) is provided with a mold groove that is adapted to the outer side of the tube body (2).

5. The clamp for bending and chamfering aluminum tubes for vehicle bodies according to claim 1, characterized in that: The cleaning component (5) further includes a guide frame (502), a connecting rod (503), a drive column (504), and a cam (505). The drive column (504) is symmetrically arranged about the origin of the axis of the cam (505). The bottom end of the drive column (504) is fixedly connected to the top end of the cam (505). The guide frame (502) is symmetrically arranged, and the top end of the guide frame (502) is fixedly connected to the connecting rod (503). The top end of the drive column (504) is movably connected to the bottom end of the guide frame (502).

6. The clamp for bending and chamfering aluminum tubes for vehicle bodies according to claim 5, characterized in that: The back side of the cleaning block (501) is slotted and movable to the top of the connecting rod (503). The top of the connecting rod (503) is threaded with a limiting bolt (506). The back side of the cleaning block (501) is provided with a limiting hole (7), and the front end of the limiting bolt (506) is adapted to the limiting hole (7).

7. The clamp for bending and chamfering aluminum tubes for vehicle bodies according to claim 6, characterized in that: The cam (505) is movably connected to the inside of the base (1) via a rotating shaft, and the guide frame (502) and the connecting rod (503) are slidably connected to the base (1). The base (1) is fixedly connected to a second servo motor (8), and the output end of the second servo motor (8) is fixedly connected to the bottom end of the rotating shaft of the cam (505).

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