L-shaped bending die

Abstract

The utility model discloses an L bending die which comprises a first base and a workpiece, the first base is provided with a positioning mechanism used for fixing the workpiece, the positioning mechanism comprises a second base arranged on the top of the first base, first air cylinders are symmetrically arranged on the periphery between the first base and the second base, and the second air cylinders are symmetrically arranged on the periphery between the first base and the second base. An outer positioning block driven by the first air cylinder to move and used for clamping the outer wall of the workpiece is arranged at the output end of the first air cylinder, a fixing plate is arranged in the middle of the position between the first base and the second base, and a fourth air cylinder is arranged at the top of the fixing plate. According to the L bending die, effective L bending and one-time forming of the lower end of a workpiece can be achieved through cooperation of the arranged positioning mechanism and the bending assembly, precision is high, action is rapid, efficiency and product quality are improved, pre-positioning of the workpiece can be achieved through cooperation of the arranged four-corner pre-positioning assembly and the downward pressing assembly, accurate placement in place is not needed, pre-positioning is automatically achieved, and the production efficiency is improved. And the efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of bending devices, and in particular to L-shaped bending molds. Background Technology

[0002] An L-shaped bending die is a processing device used to bend products into an L-shape. As a key metal forming tool, it is widely used in the manufacturing industry. This type of die plays an important role in many fields, including the manufacturing of electrical equipment, the production of automotive parts, and the processing of building components.

[0003] Traditional bending processes often rely on manual operation or simple mechanical equipment, which is not only inefficient but also makes it difficult to guarantee product consistency and precision. Furthermore, the molds need to go through multiple steps and stages during processing, which leads to extended processing cycles and increased costs.

[0004] Therefore, it is necessary to propose an L-shaped mold to solve the above problems. Utility Model Content

[0005] The main purpose of this utility model is to provide an L-shaped mold, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A folding mold includes a first base and a workpiece. The first base is provided with a positioning mechanism for fixing the workpiece. The positioning mechanism includes a second base located on top of the first base. A first cylinder is symmetrically arranged around the first base and the second base. The output end of the first cylinder is provided with an outer positioning block driven by the first cylinder to clamp the outer wall of the workpiece. A fixed plate is provided in the middle between the first base and the second base. A fourth cylinder is provided on the top of the fixed plate. A lifting frame driven by the fourth cylinder is provided on the top output end of the fourth cylinder. Lifting plates are symmetrically arranged around the lifting frame. An inner positioning block for clamping the inside of the workpiece is symmetrically and movably connected around the bottom of the fixed plate. The lower end of the lifting plate extends to the bottom of the fixed plate and cooperates with the inner inclined surface of the inner positioning block, so that the lifting plate moves down and pushes the inner positioning block to expand outward.

[0008] It also includes a bending assembly disposed on a first base. The bending assembly includes a first driving body disposed on the top of the first base and located below the fixed plate. A hydraulic cylinder for driving the first driving body to rise and fall is disposed at the bottom of the first base. A second driving body is fitted around the four inclined surfaces of the first driving body. Bending blocks for bending the lower perimeter of the workpiece are symmetrically disposed at the four corners of the first driving body. The inner side of the bending block is fitted with the inclined surface of the second driving body away from the first driving body.

[0009] Preferably, the first driving body and the second driving body are configured such that when the first driving body rises, the second driving body displaces outward;

[0010] The bending block and the second driving body are configured such that the bending block expands outward when the second driving body is displaced outward.

[0011] Preferably, it also includes a four-corner pre-positioning component, which includes a second cylinder disposed at the four corners of the bottom of the first base, and the output end of the second cylinder is provided with a pre-positioning block driven by the second cylinder for clamping the four corners of the workpiece.

[0012] Preferably, it also includes a pressing assembly, which includes brackets disposed at the four corners of the top of the second base. A third cylinder is disposed on the side wall of the brackets. A rack driven by the third cylinder is disposed at the top output end of the third cylinder. A rotating shaft is rotatably connected to the upper end of the third cylinder. A pressure arm corresponding to the four corners of the top of the workpiece is fixedly disposed at the end of the rotating shaft. A pressure block is fixedly disposed at the bottom of the end of the pressure arm away from the rotating shaft. A gear meshing with the rack is fixedly connected to the outer wall of the rotating shaft.

[0013] Preferably, the corners of the prepositioning block correspond to those of the bending block, so that the bending block can be pushed to reset simultaneously when the four corners of the workpiece are positioned.

[0014] Preferably, the second base is provided with a through groove adapted to the workpiece, and the lower end of the workpiece extends downward through the through groove.

[0015] Compared with the prior art, the present invention provides an L-shaped mold, which has the following advantages:

[0016] This bending die, through its positioning mechanism and bending components, can effectively bend the lower end of the workpiece in one step, achieving high precision and fast operation, thus improving efficiency and product quality. The four-corner pre-positioning components, in conjunction with the pressing component, can automatically position the workpiece, eliminating the need for precise placement and further enhancing efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0019] Figure 3 This is a structural diagram of the present invention in its disassembled state;

[0020] Figure 4 This is a schematic diagram of the structure of the first base of this utility model;

[0021] Figure 5 This is a utility model Figure 4 A structural diagram showing the structure in its disassembled state.

[0022] Figure 6 This is a structural diagram of the bending component of this utility model in its disassembled state;

[0023] Figure 7 This is a schematic diagram of the structure of the four-corner pre-positioning component of this utility model;

[0024] Figure 8 This is a structural schematic diagram of the pressing component of this utility model.

[0025] In the diagram: 1. First base; 2. Second base; 3. Workpiece; 4. Support; 5. First cylinder; 6. Second cylinder; 7. Third cylinder; 8. Pressure arm; 9. Pressure block; 10. Hydraulic cylinder; 11. Lifting frame; 12. Lifting plate; 13. Fixing plate; 14. Outer positioning block; 15. Inner positioning block; 16. Fourth cylinder; 17. Gear; 18. Bending block; 19. First drive body; 20. Second drive body; 21. Pre-positioning block; 22. Rack; 23. Rotating shaft. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] like Figure 1-8 As shown, the L-shaped mold includes a first base 1 and a workpiece 3. The first base 1 is provided with a positioning mechanism for fixing the workpiece 3. The positioning mechanism includes a second base 2 located on top of the first base 1. The second base 2 has a through groove adapted to the workpiece 3, through which the lower end of the workpiece 3 extends downwards. A first cylinder 5 is symmetrically arranged around the first base 1 and the second base 2. The output end of the first cylinder 5 is provided with an outer positioning block 14 driven by the first cylinder 5 to clamp the outer wall of the workpiece 3. The first base 1 and the second base 2... A fixed plate 13 is provided in the middle between the two bases 2. A fourth cylinder 16 is provided on the top of the fixed plate 13. A lifting frame 11 driven by the fourth cylinder 16 is provided at the top output end of the fourth cylinder 16. Lifting plates 12 are symmetrically arranged around the lifting frame 11. An inner positioning block 15 for clamping the inside of the workpiece 3 is symmetrically and movably connected around the bottom of the fixed plate 13. The lower end of the lifting plate 12 extends to the bottom of the fixed plate 13 and cooperates with the inner inclined surface of the inner positioning block 15, so that the lifting plate 12 moves down and pushes the inner positioning block 15 to expand outward.

[0028] It also includes a bending assembly disposed on the first base 1. The bending assembly includes a first driving body 19 disposed on the top of the first base 1 and located below the fixed plate 13. A hydraulic cylinder 10 for driving the first driving body 19 to rise and fall is disposed at the bottom of the first base 1. A second driving body 20 is fitted around the four inclined surfaces of the first driving body 19. Bending blocks 18 for bending the lower perimeter of the workpiece 3 are symmetrically disposed at the four corners of the first driving body 19. The inner side of the bending block 18 is fitted with the inclined surface of the second driving body 20 away from the first driving body 19. The first driving body 19 and the second driving body 20 are configured such that when the first driving body 19 rises, the second driving body 20 moves outward. The bending block 18 and the second driving body 20 are configured such that when the second driving body 20 moves outward, the bending block 18 expands outward.

[0029] It also includes a four-corner pre-positioning component, which includes a second cylinder 6 disposed at the four corners of the bottom of the first base 1. The output end of the second cylinder 6 is provided with a pre-positioning block 21 driven by the second cylinder 6 and used to clamp the four corners of the workpiece 3. The pre-positioning block 21 also corresponds to the corner of the bending block 18, so that when positioning the four corners of the workpiece 3, the bending block 18 can be pushed to reset at the same time.

[0030] Furthermore, it also includes a pressing assembly, which includes brackets 4 set at the four corners of the top of the second base 2. A third cylinder 7 is set on the side wall of the bracket 4. A rack 22 driven by the third cylinder 7 is set at the top output end of the third cylinder 7. A rotating shaft 23 is rotatably connected to the upper end of the third cylinder 7. A pressure arm 8 corresponding to the four corners of the top of the workpiece 3 is fixedly set at the end of the rotating shaft 23. A pressure block 9 is fixedly set at the bottom of the end of the pressure arm 8 away from the rotating shaft 23. A gear 17 that meshes with the rack 22 is fixedly connected to the outer wall of the rotating shaft 23.

[0031] In use, the lower end of workpiece 3 is inserted downward through the through slot on the second base 2. Then, the second cylinder 6 drives the prepositioning block 21 to move. While positioning the four corners of the lower end of workpiece 3, the prepositioning block 21 can also push the bending block 18 back to its original position. Then, the third cylinder 7 drives the rack 22 to rise. The rack 22 achieves the downward flipping of the pressure arm 8 through the gear 17 and the rotating shaft 23. The pressure arm 8 presses the workpiece 3 into place through the pressure block 9. At this time, the lower edge of workpiece 3 corresponds to the outer side of the bending block 18. Then, the fourth cylinder 16 drives the lifting plate 12 to move downward through the lifting frame 11. The lifting plate 12 pushes the inner positioning block 15 to move outward. The trend is such that the outer side of the inner positioning block 15 applies pressure to the inner wall of the workpiece 3 for positioning. The first cylinder 5 drives the outer positioning block 14 to clamp and position the outer wall of the workpiece 3. Then, the second cylinder 6 drives the pre-positioning block 21 to reset. The oil cylinder 10 drives the first driving body 19 to rise. The first driving body 19 drives the second driving body 20 to move outward. The second driving body 20 drives the bending block 18 to expand outward. Thus, the bending block 18 achieves bending of the lower edge of the workpiece 3. After the workpiece 3 is finished, the oil cylinder 10 drives the first driving body 19 to reset. The first cylinder 5, the third cylinder 7, and the fourth cylinder 16 are reset. Finally, the workpiece 3 can be removed.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A folding die, comprising a first base (1) and a workpiece (3), characterized in that: The first base (1) is provided with a positioning mechanism for fixing the workpiece (3). The positioning mechanism includes a second base (2) disposed on the top of the first base (1). A first cylinder (5) is symmetrically arranged around the first base (1) and the second base (2). The output end of the first cylinder (5) is provided with an outer positioning block (14) driven by the first cylinder (5) to clamp the outer wall of the workpiece (3). A fixing plate (13) is provided in the middle between the first base (1) and the second base (2). The top of the fixing plate (13) is... The part is provided with a fourth cylinder (16), and the top output end of the fourth cylinder (16) is provided with a lifting frame (11) driven by the fourth cylinder (16) to lift. The lifting frame (11) is symmetrically provided with lifting plates (12) around its perimeter. The bottom perimeter of the fixed plate (13) is symmetrically and movably connected with an inner positioning block (15) for clamping the inside of the workpiece (3). The lower end of the lifting plate (12) extends to the bottom of the fixed plate (13) and cooperates with the inner inclined surface of the inner positioning block (15), so that the lifting plate (12) moves down and pushes the inner positioning block (15) to expand outward. It also includes a bending assembly disposed on the first base (1), the bending assembly including a first driving body (19) disposed on the top of the first base (1) and located below the fixing plate (13), the bottom of the first base (1) is provided with a hydraulic cylinder (10) for driving the first driving body (19) to rise and fall, the inclined surfaces around the first driving body (19) are fitted with a second driving body (20), the four corners of the first driving body (19) are symmetrically provided with bending blocks (18) for bending the lower end of the workpiece (3), and the inner side of the bending block (18) is fitted with the inclined surface of the second driving body (20) away from the first driving body (19).

2. The L-shaped mold according to claim 1, characterized in that: The first driving body (19) and the second driving body (20) are configured such that when the first driving body (19) rises, the second driving body (20) moves outward; The bending block (18) and the second drive body (20) are configured such that the bending block (18) expands outward when the second drive body (20) is displaced outward.

3. The L-shaped mold according to claim 1, characterized in that: It also includes a four-corner pre-positioning component, which includes a second cylinder (6) disposed at the four corners of the bottom of the first base (1). The output end of the second cylinder (6) is provided with a pre-positioning block (21) driven by the second cylinder (6) to clamp the four corners of the workpiece (3).

4. The L-shaped mold according to claim 1, characterized in that: It also includes a pressing assembly, which includes brackets (4) set at the four corners of the top of the second base (2). A third cylinder (7) is provided on the side wall of the bracket (4). A rack (22) driven by the third cylinder (7) is provided at the top output end of the third cylinder (7). A rotating shaft (23) is rotatably connected to the upper end of the third cylinder (7). A pressure arm (8) corresponding to the four corners of the top of the workpiece (3) is fixedly provided at the end of the rotating shaft (23). A pressure block (9) is fixedly provided at the bottom of the end of the pressure arm (8) away from the rotating shaft (23). A gear (17) meshing with the rack (22) is fixedly connected to the outer wall of the rotating shaft (23).

5. The L-shaped mold according to claim 3, characterized in that: The prepositioning block (21) corresponds to the corner of the bending block (18), so that when positioning the four corners of the workpiece (3), the bending block (18) can be pushed to reset at the same time.

6. The L-shaped mold according to claim 1, characterized in that: The second base (2) is provided with a through groove adapted to the workpiece (3), and the lower end of the workpiece (3) extends downward through the through groove.

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