Four-edge full-surrounding forming die

Abstract

The utility model belongs to the technical field of stamping dies, and particularly relates to a four-edge full-surrounding forming die which comprises an upper die base and a lower die base, an upper padding plate, an upper clamping plate, a guide rod and a damping spring are arranged below the upper die base, and a stopping plate and an upper stripping plate are arranged below the upper clamping plate. A floating block reset rod is arranged on the surface of the upper stripping plate, and a lower cushion plate, a lower die plate, a lower die forming fixing plate, a lower die forming insert, a reset spring and a floating block are arranged above the lower die base. According to the four-edge full-surrounding forming die, the floating block reset rod is arranged below the upper die base, the floating block and the reset spring are arranged above the lower die base, the head portion of the lower die forming insert is designed to be of a 25-degree included angle, the springback characteristic of the stainless steel elastic piece is utilized, an opening of a product is expanded when the product is stripped, and product stripping is completed; the technical problems that during product stripping of an existing full-surrounding forming die, two working procedures are needed, and empty beating forming is not stable are solved.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a four-sided fully enclosed forming die. Background Technology

[0002] For the processing of stainless steel spring sheets, the full-enclosure forming mold is a mold that can process stainless steel spring sheets into a full-enclosure shape. This mold needs to take into account the characteristics of stainless steel, such as its relatively high hardness, difficulty in deformation, and difficulty in processing. Appropriate processes and structures need to be adopted in the design and manufacturing to ensure that the full-enclosure shape can be accurately formed.

[0003] In actual use, because the product has a fully enclosed structure, the forming space is very small and it is impossible to make a slider. In order for the product to be unloaded, it must first be formed at 80 degrees and then formed at 90 degrees by air-pressing. This requires two processes and the air-pressing is unstable, making it inconvenient to use. Utility Model Content

[0004] To address the technical problem that existing fully enclosed forming molds require two processes—first forming at 80 degrees and then air-forming to 90 degrees—when removing material from the product, and that air-forming is unstable, this utility model proposes a four-sided fully enclosed forming mold.

[0005] This utility model proposes a four-sided fully enclosed forming mold, including an upper mold base and a lower mold base. The upper mold base is located above the lower mold base. An upper pad, an upper clamping plate, a guide rod, and a shock-absorbing spring are respectively arranged below the upper mold base. A forming punch is fixedly connected to the surface of the upper pad. A stop plate and an upper ejector plate are respectively arranged below the upper clamping plate. A positioning post is fixedly connected to the surface of the upper clamping plate. A float return rod is arranged on the surface of the upper ejector plate. A lower pad, a lower template, a lower mold forming fixing plate, a lower mold forming insert, a return spring, and a float are respectively arranged above the lower mold base. A positioning hole is opened on the surface of the lower template. A spring sheet is fixedly connected to the surface of the float.

[0006] Preferably, the surface of the lower mold base is fixedly connected to the surface of the lower pad, the surface of the lower pad is fixedly connected to the surface of the lower template, and the plurality of positioning holes are symmetrically distributed with the axis of the lower template as the center.

[0007] Preferably, the surface of the lower mold base is fixedly connected to the surface of the lower mold forming fixing plate and one end of the return spring, respectively. The two return springs are symmetrically distributed with the axis of the lower mold forming fixing plate as the center. The other end of the return spring is fixedly connected to the surface of the float block. The surface of the float block is slidably connected to the surface of the lower pad plate and the surface of the lower template.

[0008] Preferably, the surface of the lower mold forming fixing plate is fixedly connected to the surface of the lower mold forming insert, the surface of the lower mold forming insert is slidably connected to the surface of the float, the head of the lower mold forming insert is designed with an included angle of 25 degrees, and the two spring plates are symmetrically distributed with the axis of the float as the center.

[0009] Preferably, the surface of the upper mold base is fixedly connected to the surface of the upper pad and one end of the shock-absorbing spring, respectively. The two shock-absorbing springs are symmetrically distributed about the axis of the upper mold base. The surface of the upper pad is fixedly connected to the surface of the upper clamping plate, the surface of the forming punch, and the surface of the positioning post, respectively. The surface of the forming punch is slidably connected to the surface of the stop plate and the surface of the upper ejector plate, respectively. The surface of the positioning post is slidably connected to the surface of the stop plate, the surface of the upper ejector plate, and the surface of the positioning hole, respectively.

[0010] Preferably, the other ends of both shock-absorbing springs are fixedly connected to the surface of the stop plate, the surface of the stop plate is fixedly connected to the surface of the upper release plate, the two guide rods are symmetrically distributed around the axis of the upper release plate, the surfaces of the guide rods are fixedly connected to the surfaces of the stop plate and the upper release plate respectively, the surfaces of the guide rods are slidably connected to the surfaces of the upper pad plate and the upper clamping plate respectively, the surface of the upper release plate is fixedly connected to the surface of the float reset rod, the two float reset rods are symmetrically distributed around the axis of the upper release plate, and the surface of the float reset rod is slidably connected to the surface of the float.

[0011] The beneficial effects of this utility model are as follows:

[0012] By setting a float and reset rod below the upper mold base and a float and reset spring above the lower mold base, and designing the head of the lower mold forming insert to be at a 25-degree angle, the product opening is expanded during product stripping by utilizing the spring characteristics of the stainless steel spring sheet, thus completing the product stripping. This solves the technical problem of existing fully enclosed forming molds requiring two processes—forming 80 degrees first and then forming 90 degrees in the air—when stripping products, which is also unstable during the air forming process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a four-sided fully enclosed forming mold proposed in this utility model;

[0014] Figure 2 A three-dimensional view of the positioning column structure of a four-sided fully enclosed forming mold proposed in this utility model;

[0015] Figure 3 This is a perspective view of the floating block reset rod structure of a four-sided fully enclosed forming mold proposed in this utility model;

[0016] Figure 4 This is a three-dimensional view of a floating block structure for a four-sided fully enclosed forming mold proposed in this utility model;

[0017] Figure 5 This is a three-dimensional view of the reset spring structure of a four-sided fully enclosed forming mold proposed in this utility model.

[0018] In the diagram: 1. Upper mold base; 2. Lower mold base; 3. Upper pad; 4. Upper clamping plate; 5. Guide rod; 6. Shock-absorbing spring; 7. Forming punch; 8. Stop plate; 9. Upper ejector plate; 10. Positioning pin; 11. Float block reset rod; 12. Lower pad; 13. Lower template; 14. Lower mold forming fixing plate; 15. Lower mold forming insert; 16. Reset spring; 17. Float block; 18. Positioning hole; 19. Spring plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figures 1-5 A four-sided fully enclosed forming mold includes an upper mold base 1 and a lower mold base 2. The upper mold base 1 is located above the lower mold base 2. The lower part of the upper mold base 1 is provided with an upper pad 3, an upper clamping plate 4, a guide rod 5 and a shock-absorbing spring 6. A forming punch 7 is fixedly connected to the surface of the upper pad 3. A stop plate 8 and an upper ejector plate 9 are provided below the upper clamping plate 4. A positioning post 10 is fixedly connected to the surface of the upper clamping plate 4. A float reset rod 11 is provided on the surface of the upper ejector plate 9. The lower mold base 2 is provided with a lower pad 12, a lower template 13, a lower mold forming fixing plate 14, a lower mold forming insert 15, a reset spring 16 and a float 17. A positioning hole 18 is opened on the surface of the lower template 13. A spring sheet 19 is fixedly connected to the surface of the float 17.

[0021] The surface of the lower mold base 2 is fixedly connected to the surface of the lower pad 12, and the surface of the lower pad 12 is fixedly connected to the surface of the lower template 13. Multiple positioning holes 18 are symmetrically distributed with the axis of the lower template 13 as the center.

[0022] Furthermore, the lower mold base 2, the lower pad 12, and the lower template 13 are all arranged coaxially.

[0023] The surface of the lower mold base 2 is fixedly connected to the surface of the lower mold forming fixing plate 14 and one end of the return spring 16, respectively. The two return springs 16 are symmetrically distributed with the axis of the lower mold forming fixing plate 14 as the center. The other end of the return spring 16 is fixedly connected to the surface of the float block 17. The surface of the float block 17 is slidably connected to the surface of the lower pad plate 12 and the surface of the lower template 13.

[0024] Furthermore, the two return springs 16 cause the surface of the float 17 to slide on the surface of the lower pad 12 and the surface of the lower template 13 to reset.

[0025] The surface of the lower mold forming fixing plate 14 is fixedly connected to the surface of the lower mold forming insert 15, the surface of the lower mold forming insert 15 is slidably connected to the surface of the float 17, the head of the lower mold forming insert 15 is designed with an included angle of 25 degrees, and the two spring plates 19 are symmetrically distributed with the axis of the float 17 as the center.

[0026] Furthermore, the lower mold forming insert 15 is fixed on the surface of the lower mold forming fixing plate 14. When the float 17 moves up and down, it utilizes the springback characteristics of the stainless steel spring sheet to expand the product opening when the product is unloaded.

[0027] The surface of the upper mold base 1 is fixedly connected to the surface of the upper pad 3 and one end of the shock-absorbing spring 6, respectively. The two shock-absorbing springs 6 are symmetrically distributed with the axis of the upper mold base 1 as the center. The surface of the upper pad 3 is fixedly connected to the surface of the upper clamping plate 4, the surface of the forming punch 7 and the surface of the positioning post 10, respectively. The surface of the forming punch 7 is slidably connected to the surface of the stop plate 8 and the surface of the upper ejector plate 9, respectively. The surface of the positioning post 10 is slidably connected to the surface of the stop plate 8, the surface of the upper ejector plate 9 and the surface of the positioning hole 18, respectively.

[0028] Furthermore, the upper die holder 1 drives the forming punch 7 and the positioning pin 10 to move downward along the surface of the stop plate 8 and the surface of the upper ejector plate 9.

[0029] The other ends of the two shock-absorbing springs 6 are fixedly connected to the surface of the stop plate 8. The surface of the stop plate 8 is fixedly connected to the surface of the upper release plate 9. The two guide rods 5 are symmetrically distributed with the axis of the upper release plate 9 as the center. The surface of the guide rods 5 is fixedly connected to the surface of the stop plate 8 and the surface of the upper release plate 9 respectively. The surface of the guide rods 5 is slidably connected to the surface of the upper pad 3 and the surface of the upper clamping plate 4 respectively. The surface of the upper release plate 9 is fixedly connected to the surface of the float reset rod 11. The two float reset rods 11 are symmetrically distributed with the axis of the upper release plate 9 as the center. The surface of the float reset rod 11 is slidably connected to the surface of the float 17.

[0030] Furthermore, the two shock-absorbing springs 6 drive the stop plate 8 to slide along the direction of the guide rod 5 towards the upper clamping plate 4.

[0031] By setting a float reset rod 11 below the upper mold base 1 and setting a float 17 and a reset spring 16 above the lower mold base 2, the head of the lower mold forming insert 15 is designed with a 25-degree included angle. By utilizing the springback characteristics of the stainless steel spring sheet, the product opening is expanded when the product is stripped, thus completing the product stripping. This solves the technical problem that existing fully enclosed forming molds require two processes to form 80 degrees first and then to form 90 degrees in the air, which is also unstable in the air forming process.

[0032] Working principle:

[0033] Before use, the upper mold base 1 is located above the lower mold base 2. The upper mold base 1, upper pad 3, and upper clamping plate 4 are all fixedly connected. The stop plate 8 and upper ejector plate 9 are fixedly connected. The lower mold base 2 and lower pad 12 are fixedly connected. The upper mold base 1 drives the forming punch 7 to move downwards and approach the lower mold base 2. The stop plate 8, which is elastically connected to the lower mold base 1 via shock-absorbing springs 6, drives the upper ejector plate 9 to contact the surface of the lower template 13. The stop plate 8 and the upper ejector plate 9 drive the guide rod 5 to slide upwards along the surface of the upper mold base 1, the surface of the upper pad 3, and the surface of the upper clamping plate 4. The stop plate 8 and the upper ejector plate 9 slide upwards along the surface of the positioning post 10 and the surface of the forming punch 7. The two ends of multiple shock-absorbing springs 6 are elastically connected to the surface of the upper mold base 1 and the surface of the stop plate 8, respectively. Multiple positioning springs are fixedly connected to the surface of the upper pad 3. Positioning posts 10 are adapted to multiple positioning holes 18 opened on the surface of the lower template 13. The float reset rod 11 fixedly connected to the surface of the upper ejector plate 9 drives the lower float 17 to move downward and compress the reset spring 16. The surface of the float 17 is slidably connected to the surface of the lower template 13 and the surface of the lower pad plate 12. The surface of the lower die forming insert 15 is slidably connected to the surface of the float 17. The head of the lower die forming insert 15 is designed with a 25-degree included angle. After stamping, the upper die base 1 drives the forming punch 7 to move upward away from the lower die base 2. The float reset rod 11 fixedly connected to the surface of the upper ejector plate 9 moves away from the lower float 17. The reset spring 16 drives the upper float 17 to move upward and reset. Utilizing the springback characteristics of the stainless steel spring sheet, the product opening is expanded when the product is ejected, thus completing the product ejection.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A four-sided fully enclosed forming mold, comprising an upper mold base (1) and a lower mold base (2), wherein the upper mold base (1) is located above the lower mold base (2), characterized in that: The upper mold base (1) is provided with an upper pad (3), an upper clamping plate (4), a guide rod (5) and a shock-absorbing spring (6) respectively. A forming punch (7) is fixedly connected to the surface of the upper pad (3). A stop plate (8) and an upper ejector plate (9) are provided below the upper clamping plate (4). A positioning post (10) is fixedly connected to the surface of the upper clamping plate (4). A float reset rod (11) is provided on the surface of the upper ejector plate (9). The lower mold base (2) is provided with a lower pad (12), a lower template (13), a lower mold forming fixing plate (14), a lower mold forming insert (15), a reset spring (16) and a float (17) respectively. A positioning hole (18) is opened on the surface of the lower template (13). A spring sheet (19) is fixedly connected to the surface of the float (17).

2. The four-sided fully enclosed forming mold according to claim 1, characterized in that: The surface of the lower mold base (2) is fixedly connected to the surface of the lower pad (12), the surface of the lower pad (12) is fixedly connected to the surface of the lower template (13), and the plurality of positioning holes (18) are symmetrically distributed with the axis of the lower template (13) as the center.

3. The four-sided fully enclosed forming mold according to claim 1, characterized in that: The surface of the lower mold base (2) is fixedly connected to the surface of the lower mold forming fixing plate (14) and one end of the return spring (16), respectively. The two return springs (16) are symmetrically distributed with the axis of the lower mold forming fixing plate (14) as the center. The other end of the return spring (16) is fixedly connected to the surface of the float (17). The surface of the float (17) is slidably connected to the surface of the lower pad plate (12) and the surface of the lower template (13).

4. The four-sided fully enclosed forming mold according to claim 1, characterized in that: The surface of the lower mold forming fixing plate (14) is fixedly connected to the surface of the lower mold forming insert (15), the surface of the lower mold forming insert (15) is slidably connected to the surface of the float (17), the head of the lower mold forming insert (15) is designed with an included angle of 25 degrees, and the two spring plates (19) are symmetrically distributed with the axis of the float (17) as the center.

5. A four-sided fully enclosed forming mold according to claim 1, characterized in that: The surface of the upper mold base (1) is fixedly connected to the surface of the upper pad (3) and one end of the shock-absorbing spring (6), respectively. The two shock-absorbing springs (6) are symmetrically distributed with the axis of the upper mold base (1) as the center. The surface of the upper pad (3) is fixedly connected to the surface of the upper clamping plate (4), the surface of the forming punch (7) and the surface of the positioning post (10), respectively. The surface of the forming punch (7) is slidably connected to the surface of the stop plate (8) and the surface of the upper ejector plate (9), respectively. The surface of the positioning post (10) is slidably connected to the surface of the stop plate (8), the surface of the upper ejector plate (9) and the surface of the positioning hole (18), respectively.

6. A four-sided fully enclosed forming mold according to claim 1, characterized in that: The other ends of the two shock-absorbing springs (6) are fixedly connected to the surface of the stop plate (8). The surface of the stop plate (8) is fixedly connected to the surface of the upper release plate (9). The two guide rods (5) are symmetrically distributed with the axis of the upper release plate (9) as the center. The surface of the guide rod (5) is fixedly connected to the surface of the stop plate (8) and the surface of the upper release plate (9) respectively. The surface of the guide rod (5) is slidably connected to the surface of the upper pad (3) and the surface of the upper clamping plate (4) respectively. The surface of the upper release plate (9) is fixedly connected to the surface of the float reset rod (11). The two float reset rods (11) are symmetrically distributed with the axis of the upper release plate (9) as the center. The surface of the float reset rod (11) is slidably connected to the surface of the float (17).

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