Simple arc bending die

Abstract

The utility model relates to the field of metal plate bending arc machining, and discloses a simple arc bending die which comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a mounting shell, the top of the bottom plate is provided with a bending mechanism, the bending mechanism comprises an upper die extrusion assembly and a lower die pushing assembly, the upper die extrusion assembly comprises a rotating disc, and the lower die extrusion assembly comprises a lower die pushing assembly. A connecting rod is arranged on the right surface of the rotating disc, a rotating pipe is rotationally connected to the inner wall of the connecting rod, a lead screw is arranged at the bottom of the rotating pipe, the lead screw is movably connected with the rotating pipe through a universal shaft, and a moving block is in threaded connection with the outer wall of the lead screw. According to the bending device, due to the arrangement of the upper die extrusion assembly, when the bending device faces bending plates with different radiuses, an adaptive upper die does not need to be manufactured, only different lower dies need to be replaced, the bending radius can be adjusted through the upper die in charge of extruding the bending plates, the die manufacturing cost is reduced, and the practicability of the bending device is further improved.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal bending and arc processing, and in particular to a simple arc bending mold. Background Technology

[0002] Arc bending dies are core process equipment in sheet metal processing, used to bend metal sheets into arc structures of a specific radius. They are widely used in machinery manufacturing, automotive, aerospace and other fields. Traditional simple arc bending dies mostly adopt a fixed structure, consisting of an upper die and a lower die, which force the sheet metal to plastically deform along the contour of the die through mechanical pressure.

[0003] Existing sheet metal bending processes have requirements for the radius of the arc. Different products require bending arcs of different radii. In mass production, making suitable upper and lower dies can effectively improve production efficiency. However, a single die can only match a fixed arc radius. Production of multiple specifications requires frequent die changes, resulting in low efficiency and increased costs. Therefore, a simple arc bending die is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a simple arc bending mold, which aims to improve the problem in the prior art that "a single mold can only match a fixed arc radius, and the production of multiple specifications requires frequent mold changes, resulting in low efficiency and increased costs".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a simple arc bending die, comprising a base plate, an mounting shell fixedly connected to the upper surface of the base plate, a bending mechanism provided at the top of the base plate, the bending mechanism comprising an upper die extrusion assembly and a lower die pushing assembly, the upper die extrusion assembly comprising a turntable, a connecting rod provided on the right surface of the turntable, a rotating tube rotatably connected to the inner wall of the connecting rod, a lead screw provided at the bottom of the rotating tube, the lead screw and the rotating tube being movably connected via a universal joint, a moving block threadedly connected to the outer wall of the lead screw, and a bending roller rotatably connected to the right side of the moving block.

[0006] As a further description of the above technical solution:

[0007] The lower mold pushing assembly includes an electric push rod, which is fixedly connected to the upper surface of the base plate. The output shaft of the electric push rod is fixedly connected to a mounting base. The lower mold is mounted on the upper surface of the mounting base, and a friction strip is fixedly connected to the inner wall of the lower mold.

[0008] As a further description of the above technical solution:

[0009] The turntable is rotatably connected to the right surface of the mounting housing, the moving block is slidably connected to the right surface of the turntable, and the connecting rod is fixedly connected to the right surface of the mounting housing.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the lower mold is provided with a bending plate.

[0012] As a further description of the above technical solution:

[0013] The bending roller is disposed on the upper surface of the bending plate.

[0014] As a further description of the above technical solution:

[0015] A motor is fixedly connected to the inner wall of the mounting housing.

[0016] As a further description of the above technical solution:

[0017] One end of the universal joint is fixedly connected to the bottom of the rotating tube, and the other end of the universal joint is fixedly connected to the top of the lead screw.

[0018] As a further description of the above technical solution:

[0019] The output shaft of the motor is fixedly connected to the left surface of the turntable.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, by setting an upper die extrusion assembly, the device does not need to make a suitable upper die when facing bent plates of different radii. It only needs to change different lower dies. The upper die responsible for extruding the bent plate can adjust the bending radius, reducing the cost of die making and further improving the practicality of the device.

[0022] 2. In this utility model, by setting friction strips, the bending plate can be prevented from sliding when the bending roller presses the bending plate against the inner wall of the lower mold, thus ensuring the bending effect. In addition, the universal joint can ensure that the lead screw will not be affected by the rotation angle of the turntable, further improving the practicality of the device. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0024] Figure 2 This is a three-dimensional cross-sectional view of the lower mold pushing component in this utility model;

[0025] Figure 3 This is a three-dimensional cross-sectional view of the mounting shell in this utility model.

[0026] Legend:

[0027] 1. Base plate; 2. Mounting shell; 3. Turntable; 4. Connecting rod; 5. Rotating tube; 6. Electric push rod; 7. Mounting base; 8. Lower mold; 9. Bending plate; 10. Friction strip; 11. Bending roller; 12. Moving block; 13. Lead screw; 14. Universal joint; 15. Motor. Detailed Implementation

[0028] 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.

[0029] Reference Figure 1 , Figure 2 , Figure 3 This utility model provides an embodiment of a simple arc bending die, including a base plate 1 for supporting other components. A mounting shell 2 for installing and supporting other components is fixedly connected to the upper surface of the base plate 1. A bending mechanism is provided at the top of the base plate 1, including an upper die extrusion assembly and a lower die pushing assembly. The upper die extrusion assembly and the lower die pushing assembly cooperate to perform arc bending of the bending plate 9. The upper die extrusion assembly includes a turntable 3 for driving the bending roller 11 to move. A connecting rod 4 for supporting the rotating tube 5 is provided on the right surface of the turntable 3. The inner wall of the connecting rod 4 is rotatably connected to a device for driving the bending roller 11. The rotating tube 5 rotates via a lead screw 13. The bottom of the rotating tube 5 is equipped with a lead screw 13 for driving the sliding block 12. The lead screw 13 and the rotating tube 5 are movably connected via a universal joint 14. When the turntable 3 drives the sliding block 12 and the lead screw 13 to rotate, the universal joint 14 allows the rotating tube 5 to still drive the lead screw 13 to rotate. The outer wall of the lead screw 13 is threaded with a sliding block 12. The sliding block 12 is used to install and move the bending roller 11. The right side of the sliding block 12 is rotatably connected to the bending roller 11. When the bending roller 11 is driven by the sliding block 12 to rotate around the center of the turntable 3, it can perform arc bending on the bending plate 9.

[0030] Reference Figure 2 , Figure 3The lower die pushing assembly includes an electric push rod 6, which is used to push the lower die 8 to a suitable position. The electric push rod 6 is fixedly connected to the upper surface of the base plate 1 and is supported by the base plate 1. The output shaft of the electric push rod 6 is fixedly connected to a mounting base 7, which is used to mount the lower die 8. When bending different arc radii, only the lower die 8 needs to be replaced. The lower die 8 is mounted on the upper surface of the mounting base 7. The lower die 8 is used to cooperate with the bending roller 11 to bend the bending plate 9. Friction strips 10 are fixedly connected to the inner wall of the lower die 8. Friction strip 10 is used to increase the friction at the bottom of the bending plate 9 when bending, so as to prevent the bending plate 9 from slipping and falling off when bending. Turntable 3 is rotatably connected to the right surface of mounting shell 2. Turntable 3 can drive bending roller 11 to move in an arc by rotating. Moving block 12 is slidably connected to the right surface of turntable 3. When moving block 12 slides on the surface of turntable 3, it only slides away from and towards the center. This allows bending roller 11 connected to moving block 12 to make arc movements of different radii when turntable 3 rotates after moving block 12 slides.

[0031] Reference Figure 1 , Figure 3 The connecting rod 4 is fixedly connected to the right surface of the mounting shell 2, so that the rotating tube 5 is supported by the mounting shell 2. The inner wall of the lower mold 8 is provided with a bending plate 9. When the bending plate 9 is squeezed and bent by the bending roller 11, its own thickness will also affect the moving radius of the bending roller 11. The bending roller 11 is set on the upper surface of the bending plate 9. The bending roller 11 squeezes on the upper surface of the bending plate 9, so that it fits against the inner wall of the lower mold 8. The inner wall of the mounting shell 2 is fixedly connected with a motor 15 for driving the turntable 3 to rotate. One end of the universal shaft 14 is fixedly connected to the bottom of the rotating tube 5. The universal shaft 14 allows the rotating tube 5 to continue to rotate after the lead screw 13 moves. The other end of the universal shaft 14 is fixedly connected to the top of the lead screw 13. The output shaft of the motor 15 is fixedly connected to the left surface of the turntable 3. The motor 15 provides power for the rotation of the turntable 3.

[0032] Working principle: In use, the operator first selects a suitable lower mold 8 according to the radius of the bending plate 9 to bend, and then installs the lower mold 8 on the mounting base 7. At this time, according to the thickness of the bending plate 9 and the radius of the lower mold 8, the distance from the outermost end of the bending roller 11 to the center of the turntable 3 is adjusted. The rotating tube 5 is rotated, and the rotating tube 5 drives the lead screw 13 to rotate. During this process, the position of the lead screw 13 will not affect the rotation of the rotating tube 5 due to the presence of the universal joint 14. The electric push rod 6 is started to push the lower mold 8 to a suitable position, and the bending plate 9 is placed on top of the lower mold 8. The motor 15 is started, and the motor 15 drives the turntable 3 to rotate. Due to the presence of the connecting rod 4, the turntable 3 driven by the motor 15 will not rotate one revolution, but will rotate in both directions, driving the bending roller 11 to make an arc motion. At this time, the bending roller 11 squeezes the bending plate 9, making it fit against the inner wall of the lower mold 8. During this process, the friction strip 10 ensures that the bending plate 9 will not slip during the squeezing process, so as to avoid affecting the bending effect.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A simple arc bending die, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is fixedly connected to the mounting shell (2). The top of the base plate (1) is provided with a bending mechanism. The bending mechanism includes an upper die extrusion assembly and a lower die pushing assembly. The upper die extrusion assembly includes a turntable (3). The right surface of the turntable (3) is provided with a connecting rod (4). The inner wall of the connecting rod (4) is rotatably connected to a rotating tube (5). The bottom of the rotating tube (5) is provided with a lead screw (13). The lead screw (13) and the rotating tube (5) are movably connected through a universal joint (14). The outer wall of the lead screw (13) is threadedly connected to a moving block (12). The right side of the moving block (12) is rotatably connected to a bending roller (11).

2. The simplified arc bending die according to claim 1, characterized in that: The lower mold pushing assembly includes an electric push rod (6), which is fixedly connected to the upper surface of the base plate (1). The output shaft of the electric push rod (6) is fixedly connected to a mounting base (7). The upper surface of the mounting base (7) is equipped with a lower mold (8), and the inner wall of the lower mold (8) is fixedly connected with a friction strip (10).

3. The simplified arc bending die according to claim 1, characterized in that: The turntable (3) is rotatably connected to the right surface of the mounting shell (2), the moving block (12) is slidably connected to the right surface of the turntable (3), and the connecting rod (4) is fixedly connected to the right surface of the mounting shell (2).

4. A simple arc bending die according to claim 2, characterized in that: The inner wall of the lower mold (8) is provided with a bending plate (9).

5. A simple arc bending die according to claim 1, characterized in that: The bending roller (11) is disposed on the upper surface of the bending plate (9).

6. A simple arc bending die according to claim 1, characterized in that: A motor (15) is fixedly connected to the inner wall of the mounting housing (2).

7. A simple arc bending die according to claim 1, characterized in that: One end of the universal joint (14) is fixedly connected to the bottom of the rotating tube (5), and the other end of the universal joint (14) is fixedly connected to the top of the lead screw (13).

8. A simple arc bending die according to claim 6, characterized in that: The output shaft of the motor (15) is fixedly connected to the left surface of the turntable (3).

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