Forming device for bending U-shaped metal plate

Abstract

The utility model discloses a U-shaped metal plate bending forming device which comprises a mounting frame, a lifting assembly is arranged at the top of the mounting frame, a pressing block is arranged on the mounting frame through the lifting assembly, a first limiting rod is movably arranged in the pressing block, an arc-shaped protruding block is fixedly arranged at the bottom end of the first limiting rod, and a second limiting rod is movably arranged at the bottom end of the arc-shaped protruding block. A first spring is arranged on the surface of the first limiting rod, the top of the first spring is fixedly connected with the interior of a pressing block, the bottom of the first spring is fixedly connected with an arc-shaped convex block, a bearing frame is fixedly arranged at the bottom of the interior of the mounting frame, and a rotating assembly is arranged in the bearing frame; the bearing frame is provided with an arc-shaped concave block through a rotating assembly, a through groove is formed in the surface of the bearing frame, and a springback assembly is arranged on the surface of the arc-shaped concave block. According to the device, a bent metal sheet is prevented from being attached to the male die, the sheet metal part does not need to be taken down in a sliding mode, surface abrasion of the sheet metal part is avoided, and meanwhile the taking speed of the sheet metal part is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal processing, in particular to a forming device for bending U-shaped sheet metal. Background Art

[0002] Sheet metal is a comprehensive cold working process for metal sheets. Sheet metal includes shearing, punching, cutting, compounding, folding, welding, riveting, splicing, forming, etc. Its remarkable feature is that the thickness of the same part is consistent. The products processed by the sheet metal industry are called sheet metal parts. Sheet metal parts generally refer to different things in different industries, so different bends will be made on the sheet metal.

[0003] After the existing forming device for bending U-shaped sheet metal bends, the sheet metal part is easily adhered to the convex mold. In this way, only the sheet metal part can be pulled to slide on the module to make it separate. And for some convex molds with a relatively large length, it will take a long time to slide it off, which affects the material taking speed of the sheet metal, and further affects the bending speed of the metal sheet. Moreover, sliding it off will cause wear on the surface of the sheet metal part, affecting subsequent use. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a forming device for bending U-shaped sheet metal to solve the problems put forward in the above background art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A forming device for bending U-shaped sheet metal includes a mounting frame. A lifting assembly is arranged at the top of the mounting frame. A pressing block is arranged on the mounting frame through the lifting assembly. A first limiting rod is movably arranged inside the pressing block. An arc-shaped convex block is fixedly arranged at the bottom end of the first limiting rod. A first spring is arranged on the surface of the first limiting rod. The top of the first spring is fixedly connected to the inside of the pressing block, and the bottom of the first spring is fixedly connected to the arc-shaped convex block. A bearing frame is fixedly arranged at the bottom inside the mounting frame. A rotating assembly is arranged inside the bearing frame. An arc-shaped concave block is arranged on the bearing frame through the rotating assembly. A through groove is formed on the surface of the bearing frame, and a resilience assembly is arranged on the surface of the arc-shaped concave block.

[0007] Preferably, the lifting assembly includes a telescopic cylinder fixedly arranged at the top of the mounting frame. The output end of the telescopic cylinder penetrates through the mounting frame and extends to the inside of the mounting frame and is fixedly provided with a connecting frame. The bottom of the connecting frame is fixedly connected to the pressing block.

[0008] Preferably, the rotating assembly includes a connecting plate fixedly arranged on the front side of the bearing frame. A support shaft is fixedly arranged inside the connecting plate. The support shaft is rotatably connected to the arc-shaped concave block.

[0009] Preferably, the resilient component includes a second limiting rod fixedly arranged on the surface of the arc-shaped concave block. The second limiting rod is lapped with the through groove. A limiting plate is fixedly arranged at one end of the second limiting rod away from the arc-shaped concave block. A second spring is arranged on the surface of the second limiting rod. One end of the second spring is fixedly connected with the load-bearing frame, and the other end of the second spring is fixedly connected with the limiting plate.

[0010] Preferably, a guiding rod is fixedly arranged inside the mounting frame. A guiding block is fixedly arranged on the left side of the pressing block. The guiding block is slidably connected with the guiding rod.

[0011] Preferably, the number of the arc-shaped concave blocks is two, and the two arc-shaped concave blocks are symmetrically distributed.

[0012] Preferably, the number of the second limiting rods is multiple, and the multiple second limiting rods are linearly distributed on one side of the arc-shaped concave block.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: in the forming device for bending the U-shaped sheet metal, when the pressing block and the arc-shaped convex block move downward, the arc-shaped convex block first contacts the metal thin plate, and then the arc-shaped convex block moves upward and compresses the first spring until the arc-shaped bottom of the arc-shaped convex block fits with the arc-shaped bottom of the pressing block. The metal thin plate is extruded by the downward movement of the arc-shaped convex block and the pressing block, and the metal thin plate is pushed downward. After the metal thin plate is bent into a U shape by the pressing block, the arc-shaped convex block and the two arc-shaped concave blocks, the arc-shaped convex block and the pressing block move upward. The arc-shaped convex block continues to resist the metal thin plate due to the resilience of the first spring until the first spring returns to its original length. Then the arc-shaped convex block moves upward to leave the metal thin plate inside the arc-shaped concave block. This device avoids the adhesion of the bent metal thin plate to the punch, eliminates the need to slide and remove the sheet metal part, avoids the surface wear of the sheet metal part, and at the same time speeds up the material taking speed of the sheet metal part. Description of the Drawings

[0014] Figure 1 is the isometric view of the structure of the present utility model;

[0015] Figure 2 is the right sectional view of the structure of the present utility model;

[0016] Figure 3 is the front sectional view of the structure of the present utility model;

[0017] Figure 4 is Figure 1 the enlarged view of the structure at A of

[0018] Figure 5 is Figure 3 the enlarged view of the structure at B of

[0019] In the figure: 1. mounting bracket; 2. telescopic cylinder; 3. connecting bracket; 4. pressing block; 5. arc-shaped convex block; 6. first limiting rod; 7. first spring; 8. load-bearing bracket; 9. connecting plate; 10. support shaft; 11. arc-shaped concave block; 12. through groove; 13. second limiting rod; 14. limiting plate; 15. second spring; 16. guiding block; 17. guiding rod. Detailed implementation manners

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0021] Refer to Figures 1-5, a forming device for U-shaped sheet metal bending, including a mounting frame 1. A lifting component is arranged at the top of the mounting frame 1. The mounting frame 1 is provided with a pressing block 4 through the lifting component. A first limiting rod 6 is movably arranged inside the pressing block 4. An arc-shaped convex block 5 is fixedly arranged at the bottom end of the first limiting rod 6. A first spring 7 is arranged on the surface of the first limiting rod 6. The top of the first spring 7 is fixedly connected to the inside of the pressing block 4, and the bottom of the first spring 7 is fixedly connected to the arc-shaped convex block 5. A bearing frame 8 is fixedly arranged at the bottom inside the mounting frame 1. A rotating component is arranged inside the bearing frame 8. The rotating component includes a connecting plate 9 fixedly arranged on the front side of the bearing frame 8. A support shaft 10 is fixedly arranged inside the connecting plate 9. The support shaft 10 is rotatably connected to an arc-shaped concave block 11. After the arc-shaped concave block 11 is extruded, it will rotate on the surface of the support shaft 10, so that the two arc-shaped concave blocks 11 first fit together. The bearing frame 8 is provided with arc-shaped concave blocks 11 through the rotating component. The number of arc-shaped concave blocks 11 is two, and the two arc-shaped concave blocks 11 are symmetrically distributed. A through groove 12 is formed on the surface of the bearing frame 8. A spring-back component is arranged on the surface of the arc-shaped concave block 11. The spring-back component includes a second limiting rod 13 fixedly arranged on the surface of the arc-shaped concave block 11. The number of the second limiting rods 13 is multiple, and the multiple second limiting rods 13 are linearly distributed on one side of the arc-shaped concave block 11. The second limiting rod 13 is lapped with the through groove 12. A limiting plate 14 is fixedly arranged at the end of the second limiting rod 13 away from the arc-shaped concave block 11. A second spring 15 is arranged on the surface of the second limiting rod 13. One end of the second spring 15 is fixedly connected to the bearing frame 8, and the other end of the second spring 15 is fixedly connected to the limiting plate 14. When the arc-shaped concave block 11 rotates towards the middle on the surface of the support shaft 10, it will drive the limiting plate 14 to move through the second limiting rod 13, thereby compressing the second spring 15. When the top of the arc-shaped concave block 11 is not extruded, through the spring-back action of the second spring 15, the arc-shaped concave block 11 will return to its original position, thereby loosening the metal thin plate adhered to the inside and the two arc-shaped concave blocks 11, facilitating the removal of the U-shaped sheet metal part. In this U-shaped sheet metal bending forming device, when the pressing block 4 and the arc-shaped convex block 5 move downward, the arc-shaped convex block 5 first contacts the metal thin plate, and then the arc-shaped convex block 5 moves upward and compresses the first spring 7 until the arc-shaped bottom of the arc-shaped convex block 5 and the arc-shaped bottom of the pressing block 4 fit together. The metal thin plate is extruded by the downward movement of the arc-shaped convex block 5 and the pressing block 4, and the metal thin plate is pushed downward. After the metal thin plate is bent into a U shape by the pressing block 4, the arc-shaped convex block 5 and the two arc-shaped concave blocks 11, the arc-shaped convex block 5 and the pressing block 4 move upward. The arc-shaped convex block 5 continues to press against the metal thin plate due to the spring-back of the first spring 7 until the first spring 7 returns to its original length. Then the arc-shaped convex block 5 moves upward to leave the metal thin plate inside the arc-shaped concave block 11. This device avoids the adhesion of the bent metal thin plate to the convex die, eliminates the need to slide the sheet metal part to remove it, avoids surface wear of the sheet metal part, and at the same time speeds up the material taking speed of the sheet metal part.

[0022] Specifically, the lifting assembly includes a telescopic cylinder 2 fixedly arranged at the top of the mounting frame 1. The output end of the telescopic cylinder 2 penetrates through the mounting frame 1 and extends to the inside of the mounting frame 1, and a connecting frame 3 is fixedly arranged. The bottom of the connecting frame 3 is fixedly connected to a pressing block 4. By driving the telescopic cylinder 2 to extend or shorten its output end, the connecting frame 3 is pushed to move up and down. When the connecting frame 3 moves downward, it drives the pressing block 4 and the arc-shaped convex block 5 to move up and down. When the pressing block 4 and the arc-shaped convex block 5 move downward, pressure can be applied to the metal sheet to bend it, and when moving upward, it is convenient to take out the U-shaped sheet metal part.

[0023] Specifically, a guide rod 17 is fixedly arranged inside the mounting frame 1. A guide block 16 is fixedly arranged on the left side of the pressing block 4. The guide block 16 is slidably connected to the guide rod 17. When the pressing block 4 moves, it drives the guide block 16 to slide on the surface of the guide rod 17 to assist the pressing block 4 to move up and down.

[0024] All the electrical components mentioned in this article are electrically connected to an external main controller and 220V mains power, and the main controller can be a conventional known device such as a computer for control.

[0025] During use: Drive the telescopic cylinder 2 to extend its output end, push the connecting frame 3 to move downward. When the connecting frame 3 moves downward, it drives the pressing block 4 and the arc-shaped convex block 5 to move downward. The arc-shaped convex block 5 first contacts the metal sheet, and then the arc-shaped convex block 5 moves upward and compresses the first spring 7 until the arc-shaped bottom of the arc-shaped convex block 5 fits with the arc-shaped bottom of the pressing block 4. By moving the arc-shaped convex block 5 and the pressing block 4 downward to squeeze the metal sheet and push the metal sheet downward, the metal sheet moves to drive the two arc-shaped concave blocks 11 to rotate on the surface of the support shaft 10 respectively. The rotation of the arc-shaped concave block 11 drives the limiting plate 14 to move through the second limiting rod 13, thereby compressing the second spring 15. The metal sheet is bent into a U shape by the pressing block 4, the arc-shaped convex block 5 and the two arc-shaped concave blocks 11. At this time, shorten the output end of the telescopic cylinder 2, and the arc-shaped convex block 5 and the pressing block 4 move upward. When the arc-shaped convex block 5 moves upward, there is no restriction at the bottom, so that the first spring 7 rebounds. The first spring 7 pushes the arc-shaped convex block 5 downward to continue to press against the metal sheet until the first spring 7 returns to its original length. Then the arc-shaped convex block 5 moves upward to leave the metal sheet inside the arc-shaped concave block 11. Then, through the rebounding action of the second spring 15, the arc-shaped concave block 11 is driven back to its original position to separate the metal sheet from the arc-shaped concave block 11, and then the metal sheet can be directly taken out.

[0026] In summary, for the forming device of the U-shaped sheet metal bending, when the pressing block 4 and the arc-shaped convex block 5 move downward, the arc-shaped convex block 5 first contacts the metal thin plate, and then the arc-shaped convex block 5 moves upward and compresses the first spring 7 until the arc-shaped bottom of the arc-shaped convex block 5 and the arc-shaped bottom of the pressing block 4 are fitted. The metal thin plate is extruded by the downward movement of the arc-shaped convex block 5 and the pressing block 4, and the metal thin plate is pushed downward. After the metal thin plate is bent into a U shape by the pressing block 4, the arc-shaped convex block 5 and the two arc-shaped concave blocks 11, the arc-shaped convex block 5 and the pressing block 4 move upward. The arc-shaped convex block 5 continues to resist the metal thin plate due to the rebound of the first spring 7 until the first spring 7 returns to its original length. Then the arc-shaped convex block 5 moves upward to leave the metal thin plate inside the arc-shaped concave block 11. This device avoids the adhesion of the bent metal thin plate to the convex die, eliminates the need to slide and remove the sheet metal part, avoids surface wear of the sheet metal part, and at the same time speeds up the feeding speed of the sheet metal part.

[0027] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0028] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A U-shaped sheet metal bending forming device, comprising a mounting frame (1), characterized in that: A lifting assembly is arranged at the top of the mounting frame (1), and a pressure block (4) is arranged on the mounting frame (1) through the lifting assembly. A first limiting rod (6) is movably arranged inside the pressure block (4), and an arc-shaped protrusion (5) is fixedly arranged at the bottom end of the first limiting rod (6). A first spring (7) is arranged on the surface of the first limiting rod (6), and the top of the first spring (7) is fixedly connected to the inside of the pressure block (4), and the bottom of the first spring (7) is fixedly connected to the arc-shaped protrusion (5). A load-bearing frame (8) is fixedly arranged at the bottom inside the mounting frame (1), and a rotating assembly is arranged inside the load-bearing frame (8). The load-bearing frame (8) is provided with an arc-shaped concave block (11) through the rotating assembly, and a through groove (12) is provided on the surface of the load-bearing frame (8), and a rebound assembly is arranged on the surface of the arc-shaped concave block (11).

2. A U-shaped sheet metal bending forming device according to claim 1, characterized in that: The lifting assembly comprises a telescopic cylinder (2) fixedly arranged on the top of the mounting frame (1); an output end of the telescopic cylinder (2) passes through the mounting frame (1) and extends to the interior of the mounting frame (1) and is fixedly provided with a connecting frame (3); the bottom of the connecting frame (3) is fixedly connected to a pressing block (4).

3. A U-shaped sheet metal bending forming device according to claim 1, characterized in that: The rotating assembly comprises a connecting plate (9) fixedly arranged on the front side of the load-bearing frame (8), a supporting shaft (10) being fixedly arranged inside the connecting plate (9), and the supporting shaft (10) being rotatably connected to the arc-shaped recessed block (11).

4. A U-shaped sheet metal bending forming device according to claim 1, characterized in that: The rebound component comprises a second limiting rod (13) fixedly arranged on the surface of the arc-shaped recessed block (11), the second limiting rod (13) and the through groove (12) are overlapped, a limiting plate (14) is fixedly arranged on one end of the second limiting rod (13) away from the arc-shaped recessed block (11), a second spring (15) is arranged on the surface of the second limiting rod (13), one end of the second spring (15) is fixedly connected to the load-bearing frame (8), and the other end of the second spring (15) is fixedly connected to the limiting plate (14).

5. The U-shaped sheet metal bending forming device according to claim 1, characterized in that: A guide rod (17) is fixedly arranged inside the mounting frame (1), a guide block (16) is fixedly arranged on the left side of the pressing block (4), and the guide block (16) and the guide rod (17) are slidably connected.

6. A U-shaped sheet metal bending forming device according to claim 1, characterized in that: The number of the arc-shaped recessed blocks (11) is two, and the two arc-shaped recessed blocks (11) are symmetrically distributed.

7. A U-shaped sheet metal bending forming device according to claim 4, characterized in that: There are multiple second limiting rods (13), and the multiple second limiting rods (13) are linearly distributed on one side of the arc-shaped concave block (11).

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