Sheet bending limiting device for bending machine

Abstract

The utility model belongs to the technical field of bending machines, and particularly discloses a thin plate bending limiting device for a bending machine, which comprises a bending machine body, a supporting plate is fixedly connected in the bending machine body, two symmetrical supporting plates are rotatably connected to the top of the supporting plate, two symmetrical adjusting grooves are formed in the tops of the supporting plates, and the two symmetrical adjusting grooves are arranged in the bending machine body. The thin plate bending limiting device for the bending machine comprises a supporting plate, an adjusting groove is formed in the supporting plate, two symmetrical adjusting plates are slidably connected to the interior of the adjusting groove, positioning frames are fixedly connected to the tops of the two adjusting plates, the section of each positioning frame is in an L shape, and a second moving groove extending to the exterior of the supporting plate is formed in the supporting plate. The transmission plate drives the limiting frames to move through the adjusting plate, so that the limiting frames on the two supporting plates can move synchronously, the two limiting frames on one supporting plate can move relatively, the distance between the two limiting frames on one supporting plate is adjusted, and the device can adjust the positions of the limiting frames according to the size of the thin plate.

Description

Technical Field

[0001] This utility model relates to the field of bending machine technology, specifically to a thin plate bending limiting device for bending machines. Background Technology

[0002] A bending machine is a machine that can bend thin plates. When bending thin plates, because the exposed part of the thin plate is very wide and long, a reverse torque will be applied to the bending point during the bending process, resulting in an obvious indentation when the thin plate is formed. In addition, due to the influence of its own weight, the bending angle will also change to a certain extent, affecting the accuracy of the thin plate.

[0003] A search revealed a Chinese patent publication number, CN221047144U, which discloses a thin plate bending limiting device for a bending machine. The device includes a bending machine body with a support plate fixedly connected inside. Two support plates are hinged to the upper surface of the support plate. By incorporating the support plate, support plates, limiting device, and pneumatic device, this device can easily coordinate with the bending machine to simultaneously lift one or both sides of the thin plate according to the bending requirements during the thin plate bending process. This effectively prevents the thin plate from rapidly jumping due to force during bending, thereby improving the bending accuracy of the thin plate.

[0004] Although the aforementioned patent can lift one or both sides of a thin plate simultaneously, the aforementioned device still has the following problems: during the bending process of the thin plate, because the position of the upper limit device on the device's support plate is fixed, the device can only perform limit processing on thin plates of a fixed size. However, since there are many sizes of thin plates that need to be processed, the device cannot perform limit processing on thin plates of various sizes, which reduces the scope of application of the device to a certain extent. In view of the above situation, technical innovation is carried out on the basis of the existing device. Utility Model Content

[0005] The purpose of this invention is to provide a thin plate bending limiting device for a bending machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a thin plate bending limiting device for a bending machine, comprising a bending machine body, a support plate fixedly connected inside the bending machine body, two symmetrical support plates rotatably connected to the top of the support plate, two symmetrical adjustment grooves opened on the top of the support plates, two symmetrical adjustment plates slidably connected inside the adjustment grooves, a positioning frame fixedly connected to the top of each of the two adjustment plates, the positioning frame having an L-shaped cross-section, a second moving groove extending to the outside of the support plate opened inside the support plate, two moving plates extending to the outside of the second moving groove slidably connected inside the second moving groove, two symmetrical first moving grooves opened on each of the two moving plates, a transmission plate rotatably connected to the surface of the adjustment plate, a limiting groove extending to the outside of the transmission plate opened inside the transmission plate, a limiting frame extending into the limiting groove slidably connected inside the first moving groove, and a limiting plate fixedly connected to one side of the limiting frame.

[0007] Preferably, the cross-section of the limiting frame is T-shaped, and the surface of the limiting frame is slidably connected to the interior of the limiting groove.

[0008] Preferably, the interior of the second moving groove is rotatably connected to a threaded rod extending to the outside of the bending machine body. The surface of the threaded rod is threadedly connected to the interior of the moving plate, and the surface of the threaded rod has two opposite threads starting from its center.

[0009] Preferably, the two movable plates are respectively disposed on two opposite threads on the surface of the threaded rod.

[0010] Preferably, the positioning frame is rotatably connected to a rotating shaft inside, and a pressure plate is movably connected to the surface of the rotating shaft.

[0011] Preferably, a spring is fixedly connected to the top of the pressure plate, and the top end of the spring is fixedly connected to the inner wall of the positioning frame.

[0012] Preferably, the spring is movably sleeved on the rotating shaft.

[0013] Preferably, the pressure plate has a groove inside, and a pressure roller is rotatably connected inside the groove.

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

[0015] 1. This bending machine uses a thin plate bending limiting device. The transmission plate drives the limiting frame to move through the adjusting plate, so that the limiting frames on the two pallets can move synchronously and the two limiting frames on one pallet can move relative to each other. This allows the distance between the two limiting frames on one pallet to be adjusted, so that the device can adjust the position of the limiting frame according to the size of the thin plate. This allows the device to limit thin plates of different sizes, and the device can process thin plates more smoothly.

[0016] 2. The bending machine uses a thin plate bending limiting device. The rotation of the rotating shaft can guide the movement direction of the thin plate. At the same time, the rotating shaft can make the thin plate slide more smoothly into the inside of the limiting frame for limiting. The pressure roller can make the thin plate move more smoothly under the pressure plate, so that the thin plate can be bent more smoothly and the operator can use the device more smoothly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a thin plate bending limiting device for a bending machine according to the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the support plate of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the movable plate of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the limiting frame of this utility model.

[0021] In the diagram: 1. Bending machine body; 2. Support plate; 3. Support plate; 4. Adjustment groove; 5. Adjustment plate; 6. Threaded rod; 7. Transmission plate; 8. Moving plate; 9. First moving groove; 10. Positioning frame; 11. Second moving groove; 12. Limiting frame; 13. Limiting plate; 14. Limiting groove; 15. Pressure plate; 16. Groove; 17. Pressure roller; 18. Rotating shaft; 19. Spring. Detailed Implementation

[0022] Please see Figure 1-4This utility model provides a technical solution: a thin plate bending limiting device for a bending machine, including a bending machine body 1. The bending machine body 1 is an existing structure and will not be described in detail here. A support plate 2 is fixedly connected inside the bending machine body 1. Two symmetrical support plates 3 are rotatably connected to the top of the support plate 2. The two support plates 3 are provided with the same structure. A pneumatic device is provided inside the bending machine body 1. The pneumatic device enables the two support plates 3 to rotate, so that the support plates 3 can support the plate more smoothly and the thin plate can be bent more smoothly. Two symmetrical adjustment grooves 4 are opened on the top of the support plates 3. Two symmetrical adjustment plates 5 are slidably connected inside the adjustment grooves 4. A positioning frame 10 is fixedly connected to the top of each of the two adjustment plates 5. The positioning frame 10 has an L-shaped cross-section. The support plate 2 has a... A second moving groove 11 extends to the outside of the support plate 2. Two moving plates 8 extending to the outside of the second moving groove 11 are slidably connected inside the second moving groove 11. Two symmetrical first moving grooves 9 are opened on each of the two moving plates 8. A transmission plate 7 is rotatably connected to the surface of the adjusting plate 5. A limiting groove 14 extending to the outside of the transmission plate 7 is opened inside the transmission plate 7. A limiting frame 12 extending to the inside of the limiting groove 14 is slidably connected inside the first moving groove 9. The limiting frame 12 has a T-shaped cross section. The surface of the limiting frame 12 is slidably connected to the inside of the limiting groove 14. A limiting plate 13 is fixedly connected to one side of the limiting frame 12. Through the T-shaped cross section of the limiting frame 12 and the mutual cooperation of the limiting plate 13, the movement direction of the transmission plate 7 is restricted, and the moving plate 8 can more smoothly transmit power to the transmission plate 7.

[0023] The second moving groove 11 is rotatably connected to a threaded rod 6 extending to the outside of the bending machine body 1. The surface of the threaded rod 6 is threadedly connected to the inside of the moving plate 8. The surface of the threaded rod 6 has two opposite threads starting from its center. The two moving plates 8 are respectively set on the two opposite threads on the surface of the threaded rod 6, so that the threaded rod 6 can drive the two moving plates 8 to move relative to each other under the constraint of the second moving groove 11. The threaded rod 6 is set between the two first moving grooves 9 on one moving plate 8.

[0024] The positioning frame 10 is internally connected to a rotating shaft 18. There are multiple rotating shafts 18, which are equidistantly arranged on the positioning frame 10. A pressure plate 15 is movably connected to the surface of the rotating shaft 18. The pressure plate 15 can move up and down on the rotating shaft 18, and the rotating shaft 18 can rotate inside the pressure plate 15. A spring 19 is fixedly connected to the top of the pressure plate 15. The top of the spring 19 is fixedly connected to the inner wall of the positioning frame 10. The movement of the pressure plate 15 can compress and reset the spring 19. The spring 19 is movably sleeved on the rotating shaft 18.

[0025] The rotation of the rotating shaft 18 can guide the movement direction of the thin plate, and at the same time, the rotating shaft 18 can make the thin plate slide more smoothly into the interior of the positioning frame 10 for limiting, so that the staff can use the device more smoothly.

[0026] The pressure plate 15 has multiple grooves 16 inside, which are equidistantly arranged on the pressure plate 15. A pressure roller 17 is rotatably connected inside the groove 16. The pressure roller 17 is made of rubber. The pressure roller 17 allows the thin plate to move more smoothly under the pressure plate 15, enabling the thin plate to be bent more smoothly and allowing the operator to use the device more easily.

[0027] Working principle: For this type of thin plate bending limiting device for bending machines, the operator first rotates the threaded rod 6. Under the restriction of the second moving groove 11, the threaded rod 6 can drive the two moving plates 8 to move relative to each other. The two moving plates 8, through the T-shaped cross section of the limiting frame 12 and the mutual cooperation of the limiting plate 13, restrict the movement direction of the transmission plate 7 and enable the moving plate 8 to transmit power to the transmission plate 7 more smoothly. The transmission plate 7 drives the positioning frame 10 to move through the adjusting plate 5, so that the positioning frames 10 on the two support plates 3 can move synchronously and the two positioning frames 10 on one support plate 3 can move relative to each other. The distance between the two positioning frames 10 on one support plate 3 can be adjusted, so that the device can adjust the position of the positioning frame 10 according to the size of the thin plate, and the device can limit the thin plates of different sizes.

[0028] The rotation of the rotating shaft 18 guides the movement of the thin plate and allows it to slide more smoothly into the positioning frame 10 for positioning. The pressure roller 17 allows the thin plate to move more smoothly under the pressure plate 15, enabling it to bend more easily. The force exerted by the spring 19 on the pressure plate 15 allows the pressure plate 15 and the pressure roller 17 to squeeze and limit the thin plate more smoothly. The bending machine body 1 is started, causing the bending head of the bending machine body 1 to move vertically downward and contact the thin plate, performing a bending operation. Then, the pneumatic device is started, causing the pneumatic device to move the support plate 3. Simultaneously, through the rotational connection of the adjusting plate 5 and the transmission plate 7, the limiting frame 12 is set inside the first moving groove 9 and the limiting groove 14, allowing the positioning frame 10 to move more smoothly and enabling the device to process the thin plate more smoothly.

[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. A thin plate bending limiting device for a bending machine, comprising a bending machine body (1), wherein a support plate (2) is fixedly connected inside the bending machine body (1), and two symmetrical support plates (3) are rotatably connected to the top of the support plate (2), characterized in that: The top of the supporting plate (2) is internally provided with a second moving groove (11) extending to the outside of the supporting plate (2), the inside of the second moving groove (11) is slidably connected with two moving plates (8) extending to the outside of the second moving groove (11), two symmetric first moving grooves (9) are formed in the moving plates (8), the surface of the adjusting plate (5) is rotatably connected with a transmission plate (7), the inside of the transmission plate (7) is provided with a limiting groove (14) extending to the outside of the transmission plate (7), the inside of the first moving groove (9) is slidably connected with a limiting frame (12) extending to the inside of the limiting groove (14), one side of the limiting frame (12) is fixedly connected with a limiting plate (13).

2. The sheet bending limiting device for a bending machine according to claim 1, characterized in that: The cross section of the limiting frame (12) is T-shaped, and the surface of the limiting frame (12) is slidably connected with the inside of the limiting groove (14).

3. The thin plate bending limiting device for a bending machine according to claim 1, characterized in that: The inside of the second moving groove (11) is rotatably connected with a threaded rod (6) extending to the outside of the bending machine body (1), the surface of the threaded rod (6) is threadedly connected with the inside of the moving plate (8), and the surface of the threaded rod (6) is provided with two opposite threads with the center thereof as a starting point.

4. The thin plate bending limiting device for a bending machine according to claim 3, characterized in that: The two moving plates (8) are arranged on the two opposite threads on the surface of the threaded rod (6) respectively.

5. The sheet bending limiting device for a bending machine according to claim 1, characterized in that: The inside of the limiting frame (10) is rotatably connected with a rotating shaft (18), and the surface of the rotating shaft (18) is movably connected with a pressing plate (15).

6. The sheet bending limiting device for a bending machine according to claim 5, characterized in that: The top of the pressing plate (15) is fixedly connected with a spring (19), and the top end of the spring (19) is fixedly connected with the inner wall of the limiting frame (10).

7. The thin plate bending limiting device for a bending machine according to claim 6, characterized in that: The spring (19) is movably sleeved on the rotating shaft (18).

8. The sheet bending limiting device for bending machine according to claim 6, characterized in that: The inside of the pressing plate (15) is provided with a groove (16), and the inside of the groove (16) is rotatably connected with a pressing roller (17).

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