Opening and closing stamping die
By introducing guide pin assemblies and elastic buffers into the opening and closing stamping die, combined with the design of upper and lower stripping blocks and movable grooves, the problems of material offset and sticking during the stamping process are solved, high-precision stamping and convenient removal are achieved, and production efficiency is improved.
Patent Information
- Application Number
- CN202521788991.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-21
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2035-08-21
AI Technical Summary
During the stamping process of the existing open and close stamping die, the material is easily offset or stuck, resulting in poor stamping accuracy and difficulty in removal.
An opening and closing stamping die is designed. By setting a guide column assembly and an elastic buffer between the upper clamping plate and the stop plate, the stripper plate can be raised and lowered. The upper and lower stripper blocks cooperate with the movable groove to achieve product fixation and separation, evenly transmit the stamping force, and avoid product displacement and sticking.
It effectively avoids the displacement and sticking of products during the stamping process, improves the stamping accuracy and the stability of automatic loading and unloading, simplifies the product removal process, and improves stamping efficiency.
Smart Images
Figure CN223394160U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of stamping dies, in particular to an opening and closing stamping die. Background Art
[0002] The opening and closing stamping die is a common stamping die structure. It uses the opening and closing movement of the upper and lower dies to apply pressure and impact force to the material to complete the punching, bending, stretching and other processing of the material. Therefore, it is widely used in the mass production of hardware, electronics, automotive parts, etc.
[0003] When stamping materials, only a local position of the material needs to be stamped. At this time, the material will shift or leave the material placement position (stamping position) due to uneven processing, resulting in poor stamping accuracy.
[0004] Furthermore, because a high pressure and impact force must be applied to the material during stamping, the stamped material will stick to the opening and closing stamping die, making it difficult to remove the stamped material. Furthermore, because the shape of the contact area with the product in conventional opening and closing stamping dies is generally designed to match the shape of the product, once the material is stamped into the product, the gap between the product and the opening and closing stamping die becomes very small, making it difficult to remove the product from the opening and closing stamping die. Utility Model Content
[0005] The purpose of the utility model is to provide an opening and closing stamping die to solve the technical problems described in the background technology.
[0006] An opening and closing stamping die comprises:
[0007] The lower die base is provided with a lower die plate, and the lower die plate is provided with a stamping position for placing the product to be stamped;
[0008] An upper die base is provided on the upper die base, an upper clamping plate is installed on the upper clamping plate, a punch is installed on the upper clamping plate, a stop plate that can be raised and lowered is provided under the upper clamping plate, the upper clamping plate is provided with a guide column assembly connected to the stop plate, and a stripper plate is installed on the stop plate;
[0009] When the upper die seat is pressed down on the lower die seat, the stripper plate contacts the product in the punching position in advance by its own gravity to fix the product. Then, the product is punched by the punch. At the same time, the upper pad can disperse the punching force generated instantly by the upper die seat.
[0010] Based on the above technical solution, the utility model can achieve the following beneficial effects:
[0011] 1. Since the upper clamping plate is connected to the stop plate through the guide column assembly, the stripper plate can be raised and lowered. Therefore, when the upper die base is pressed down on the lower die base, the stripper plate can pre-contact the product in the punching position by its own gravity to fix the product. This can effectively prevent the product from shifting or leaving the punching position when the punch contacts the product.
[0012] 2. When the upper die base is pressed down on the lower die base, the upper pad disperses the punching force generated by the upper die base instantly, and the upper clamping plate can stably and evenly transfer the punching force to the punch.
[0013] In order to further optimize the above technical solution, it can be optionally combined with one or more of the following implementation methods without conflict.
[0014] In some embodiments, the stripper plate is provided with an upper movable groove, an upper spring is provided in the upper movable groove, the upper spring pushes an upper stripper block that moves in the upper movable groove, and the punch passes through the stripper plate;
[0015] When the upper die seat is pressed down on the lower die seat, the stripper plate contacts the product. At this time, the upper stripper block is pushed into the upper movable groove by the product.
[0016] When the upper die base is separated from the lower die base, the upper spring pushes the upper stripping block out of the upper movable groove. At this time, the upper stripping block pushes the product away from the stripping plate.
[0017] According to the technical solution, the utility model can achieve the following beneficial effects:
[0018] 1. When the upper die seat is pressed down on the lower die seat, the product in the stamping position is pushed by the pressing force of the upper die seat close to the lower die seat to push the upper stripper block into the upper movable groove to avoid the product from being crushed by the upper stripper block;
[0019] 2. After the stamping of the product is completed, the upper die base and the lower die base are separated, and the product stops pushing the upper stripper block. At this time, the upper spring pushes the upper stripper block out of the upper movable groove, pushing the product away from the stripper plate to prevent the product from sticking to the upper die base (i.e., the stripper plate) and making it difficult to remove the product.
[0020] 3. Since the upper stripping block can push the product away from the stripping plate, when the upper die base is separated from the lower die base, the possibility of the upper die base (i.e., the stripping plate) taking the product away from the stamping position is avoided. Therefore, when the opening and closing stamping die described in the utility model is used in conjunction with automatic loading and unloading equipment, the automatic loading and unloading can stably load and unload from a fixed position (i.e., the stamping position).
[0021] In some embodiments, an elastic buffer is connected between the upper clamping plate and the stop plate;
[0022] Based on the technical solution, when the upper die base is pressed down on the lower die base, the stop plate can be pushed by the elastic buffer to drive the stripping plate to stably pre-contact the product in the stamping position and fix the product, thereby further reducing the possibility of product displacement when the punch contacts the product.
[0023] In some embodiments, the top wall of the upper stripping block matches the shape of the opening of the upper movable groove;
[0024] Based on the technical solution, during the stamping process of the product, the gap between the upper stripping block and the upper movable groove can be effectively reduced to reduce damage to the product.
[0025] In some embodiments, a lower pad is provided between the lower die base and the lower die plate;
[0026] Based on the technical solution, when the upper die base is pressed down on the lower die base, the lower pad can disperse the load of the lower die base, thereby increasing the service life of the lower die base.
[0027] In some embodiments, the punching position is provided with a lower movable groove, a lower spring is provided in the lower movable groove, and the lower spring pushes a lower stripping block located in the lower movable groove to move;
[0028] When the upper die seat is pressed down on the lower die seat, the product pushes the lower stripping block into the lower movable groove and the product is in close contact with the punching position;
[0029] When the upper die base is separated from the lower die base, the lower spring pushes the lower stripping block out of the lower movable groove. At this time, the lower stripping block pushes the product away from the stamping position.
[0030] Based on the above technical solution, the utility model can further achieve the following beneficial effects:
[0031] 1. When the upper die seat is pressed down on the lower die seat, the product in the stamping position is pushed by the pressing force of the upper die seat close to the lower die seat to push the lower stripping block into the lower movable groove to avoid the product from being crushed by the lower stripping block;
[0032] 2. After the product is stamped, the upper die base and the lower die base are separated, and the product stops pushing the lower stripper block. At this time, the lower spring pushes the lower stripper block out of the lower movable groove, lifting the product from the stamping position to prevent the product from sticking to the stamping position and making it inconvenient to remove the product;
[0033] 3. After the product is stamped, the lower stripping block can lift the product from the stamping position, thereby increasing the distance between the product and the lower die base (i.e. the stamping position), making it easier to remove the product from the opening and closing stamping die.
[0034] In some embodiments, the top wall of the lower stripping block matches the shape of the opening of the lower movable groove;
[0035] Based on the technical solution, during the stamping process of the product, the gap between the lower stripping block and the lower movable groove can be effectively reduced to reduce damage to the product.
[0036] In some embodiments, the lower template is provided with a plurality of stamping positions; based on the technical solution, a plurality of stamping positions can be used to stamp a plurality of products and different parts of the products simultaneously, thereby improving the pressing efficiency.
[0037] In some embodiments, a plurality of punching positions are arranged in an array on the lower template, and two adjacent punching positions are connected to each other. The outer sides of the punching positions on the outermost sides are provided with feed and discharge openings located on the side of the lower template, and a loading and pushing mechanism is provided next to one of the feed and discharge openings. The loading and pushing mechanism is used to feed the product from one of the feed and discharge openings into the punching position located on the outermost side of the lower template. At this time, the other product located in the punching position on the outermost side of the lower template is pushed to the adjacent punching position by the product pushed in for secondary punching;
[0038] Based on the above technical solution, stamping processing can be performed on different parts of the product in an assembly line operation, thereby improving the stamping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0039] In order to more clearly illustrate the specific implementation of the present invention, the following is a brief description of the drawings and reference numerals required to be used in the description of the specific implementation.
[0040] Figure 1 This is a schematic structural diagram of the upper die base and the lower die base described in Example 1 when they are separated;
[0041] Figure 2 1 is a schematic structural diagram of the upper die base and the lower die base when pressed together in Example 1;
[0042] Figure 3 Schematic diagram of the structure when the upper die base and the lower die base are separated in Examples 2 and 3;
[0043] Figure 4 This is a position distribution diagram of the stamping positions described in Example 3.
[0044] Reference numerals:
[0045] 1. Upper die base; 11. Upper pad; 12. Upper clamping plate; 13. Punch; 14. Guide column assembly; 15. Elastic buffer; 16. Stop plate; 2. Stripper plate; 21. Upper movable groove; 22. Upper spring; 23. Upper stripper block; 3. Lower die base; 31. Lower pad; 32. Lower template; 4. Punching position; 41. Inlet and outlet opening; 42. Lower movable groove; 43. Lower spring; 44. Lower stripper block; 5. Loading and pushing mechanism; 6. Product. DETAILED DESCRIPTION
[0046] In order to make the purpose, technical solutions and advantages of the present invention more clear, the following is an enumerated description with reference to the accompanying drawings.
[0047] Example 1
[0048] like Figure 1 and 2 As shown, this embodiment provides an opening and closing stamping die, which includes an upper die base 1 and a lower die base 3.
[0049] The upper die base 1 is installed with an upper pad 11, the upper pad 11 is installed with an upper clamping plate 12, the upper clamping plate 12 is installed with a punch 13 and a guide column assembly 14, the guide column assembly 14 is connected with a stop plate 16, the guide column assembly 14 can be a combination of a guide column and a shaft sleeve, so that the stop plate 16 can be raised and lowered below the upper clamping plate 12, an elastic buffer 15 is connected between the upper clamping plate 12 and the stop plate 16, the stop plate 16 is installed with a stripper plate 2, and the punch 13 passes through the stop plate 16 and the stripper plate 2. The stripper plate 2 is provided with an upper movable groove 21, and an upper spring 22 is provided in the upper movable groove 21. The upper spring 22 pushes an upper stripper block 23 that moves in the upper movable groove 21, and the top wall of the upper stripper block 23 matches the opening shape of the upper movable groove 21.
[0050] The lower die base 3 is mounted with a lower plate 31, on which a lower die plate 32 is mounted. The lower die plate 32 is provided with a punching position 4 for placing the product 6 to be punched. The upper die base 1 and the lower die base 3 can be driven by a hydraulic device to move closer, press together, and open apart.
[0051] The following is a working description of an opening and closing stamping die described in this embodiment.
[0052] When stamping the product 6, the product 6 to be stamped is placed into the stamping position 4 by an operator, a robot or mechanical equipment; thereafter, the upper die base 1 is pressed down on the lower die base 3. During this process, the elastic buffer 15 pushes the stop plate 16 to drive the stripper plate 2 to contact the product 6 in advance to fix the product 6. The product 6 uses the pressing force when the upper die base 1 approaches the lower die base 3 to push the upper stripper block 23 into the upper movable groove 21 to avoid the product 6; then, the punch 13 stamps the product 6.
[0053] After completing the stamping of the product 6, the upper die base 1 is separated from the lower die base 3, and the upper spring 22 pushes the upper stripping block 23 to extend out of the upper movable groove 21. At this time, the upper stripping block 23 pushes the product 6 away from the stripping plate 2; thereafter, the stamped product 6 is removed from the stamping position 4 by an operator, a robot or mechanical equipment.
[0054] Example 2
[0055] like Figure 3As shown, this embodiment provides an opening and closing stamping die, which includes an upper die base 1 and a lower die base 3.
[0056] The upper die base 1 is installed with an upper pad 11, the upper pad 11 is installed with an upper clamping plate 12, the upper clamping plate 12 is installed with a punch 13 and a guide column assembly 14, the guide column assembly 14 is connected with a stop plate 16, the guide column assembly 14 can be a combination of a guide column and a shaft sleeve, so that the stop plate 16 can be raised and lowered below the upper clamping plate 12, an elastic buffer 15 is connected between the upper clamping plate 12 and the stop plate 16, the stop plate 16 is installed with a stripper plate 2, and the punch 13 passes through the stop plate 16 and the stripper plate 2. The stripper plate 2 is provided with an upper movable groove 21, and an upper spring 22 is provided in the upper movable groove 21. The upper spring 22 pushes an upper stripper block 23 that moves in the upper movable groove 21, and the top wall of the upper stripper block 23 matches the opening shape of the upper movable groove 21.
[0057] The lower die base 3 is mounted with a lower plate 31, on which a lower mold plate 32 is mounted. The lower mold plate 32 is provided with a punching station 4, which is used to place the product 6 to be punched. The punching station 4 has a lower movable groove 42, within which a lower spring 43 is located. This spring 43 pushes a lower stripper block 44, which moves within the lower movable groove 42. The top wall of the lower stripper block 44 matches the shape of the opening of the lower movable groove 42.
[0058] The following is a working description of an opening and closing stamping die in this embodiment.
[0059] When stamping the product 6, the product 6 to be stamped is placed into the stamping position 4 by an operator, a robot or mechanical equipment; thereafter, the upper die base 1 is pressed down on the lower die base 3. During this process, the elastic buffer 15 pushes the stop plate 16 to drive the stripping plate 2 to contact the product 6 in advance to fix the product 6. The product 6 uses the pressing force when the upper die base 1 approaches the lower die base 3 to push the upper stripping block 23 into the upper movable groove 21 to avoid the product 6. At the same time, the product 6 located in the stamping position 4 also uses the pressing force when the upper die base 1 approaches the lower die base 3 to push the lower stripping block 44 into the lower movable groove 42 to avoid the product 6; then, the punch 13 stamps the product 6.
[0060] After completing the stamping of the product 6, the upper die base 1 is separated from the lower die base 3, and the upper spring 22 pushes the upper stripping block 23 to extend out of the upper movable groove 21. At this time, the upper stripping block 23 pushes the product 6 away from the stripping plate 2. At the same time, when the upper die base 1 is separated from the lower die base 3, the lower spring 43 pushes the lower stripping block 44 to extend out of the lower movable groove 42. At this time, the lower stripping block 44 also pushes the product 6 to separate from the stamping position 4; thereafter, the stamped product 6 is taken out from the stamping position 4 by an operator, a robot or mechanical equipment.
[0061] Example 3
[0062] like Figure 3 and 4 As shown, this embodiment provides an opening and closing stamping die, which includes an upper die base 1 and a lower die base 3.
[0063] The upper die base 1 is installed with an upper pad 11, the upper pad 11 is installed with an upper clamping plate 12, the upper clamping plate 12 is installed with a punch 13 and a guide column assembly 14, the guide column assembly 14 is connected with a stop plate 16, the guide column assembly 14 can be a combination of a guide column and a shaft sleeve, so that the stop plate 16 can be raised and lowered below the upper clamping plate 12, an elastic buffer 15 is connected between the upper clamping plate 12 and the stop plate 16, the stop plate 16 is installed with a stripper plate 2, and the punch 13 passes through the stop plate 16 and the stripper plate 2. The stripper plate 2 is provided with an upper movable groove 21, and an upper spring 22 is provided in the upper movable groove 21. The upper spring 22 pushes an upper stripper block 23 that moves in the upper movable groove 21, and the top wall of the upper stripper block 23 matches the opening shape of the upper movable groove 21.
[0064] The lower die base 3 is mounted with a lower plate 31, on which a lower die plate 32 is mounted. The lower die plate 32 is provided with a punching position 4 for placing the product 6 to be punched. The lower die plate 32 is provided with a plurality of punching positions 4 arranged in an array, with two adjacent punching positions 4 connected to each other. The outer edges of the punching positions 4 on the outermost sides are provided with feed and discharge openings 41 located on the side of the lower die plate 32, and a loading and ejecting mechanism 5 is provided next to one of the feed and discharge openings 41.
[0065] The punching position 4 is provided with a lower movable groove 42, in which a lower spring 43 is provided. The lower spring 43 pushes a lower stripping block 44 that moves in the lower movable groove 42. The top wall of the lower stripping block 44 matches the opening shape of the lower movable groove 42.
[0066] The following is a working description of an opening and closing stamping die in this embodiment.
[0067] When stamping the product 6, the loading and pushing mechanism 5 feeds the first product 6 from one of the feed and discharge openings 41 into the stamping position 4 (that is, the first stamping position 4) located at the outermost side of the lower template 32; thereafter, the upper die base 1 is pressed down on the lower die base 3, and the first product 6 in the first stamping position 4 is stamped with the punch 13; after the stamping is completed, the upper die base 1 is separated from the lower die base 3, and then the loading and pushing mechanism 5 pushes the second product 6 into the first stamping position 4. At this time, the second product 6 pushes the first product 6 into the second stamping position 4; thereafter, the upper die base 1 presses down on the punch 13 on the lower die base 3 to stamp the second product 6 in the first stamping position 4, and the other punch 13 performs a second stamping on the first product 6 in the second stamping position 4; and so on, until the product 6 is pushed to the last stamping position 4 and sent away from the feed and discharge opening 41 of the last stamping position 4.
[0068] During the process of the upper die base 1 pressing down on the lower die base 3, the elastic buffer 15 pushes the stop plate 16 to drive the stripping plate 2 to contact the product 6 in advance to fix the product 6. The product 6 uses the pressing force when the upper die base 1 approaches the lower die base 3 to push the upper stripping block 23 into the upper movable groove 21 to avoid the product 6. At the same time, the product 6 located in the stamping position 4 also uses the pressing force when the upper die base 1 approaches the lower die base 3 to push the lower stripping block 44 into the lower movable groove 42 to avoid the product 6; then, the punch 13 punches the product 6.
[0069] When the upper die base 1 is separated from the lower die base 3, the upper spring 22 pushes the upper stripping block 23 to extend out of the upper movable groove 21. At this time, the upper stripping block 23 pushes the product 6 away from the stripping plate 2. At the same time, when the upper die base 1 is separated from the lower die base 3, the lower spring 43 pushes the lower stripping block 44 to extend out of the lower movable groove 42. At this time, the lower stripping block 44 also pushes the product 6 to separate from the stamping position 4.
Claims
1. An opening and closing stamping die, characterized in that: include: A lower die base (3), wherein a lower die plate (32) is provided on the lower die base (3), and the lower die plate (32) is provided with a punching position (4), and the punching position (4) is used to place a product (6) to be punched; An upper die base (1), wherein an upper pad (11) is provided on the upper die base (1), an upper clamping plate (12) is mounted on the upper pad (11), a punch (13) is mounted on the upper clamping plate (12), a lifting and lowering stop plate (16) is provided below the upper clamping plate (12), the upper clamping plate (12) is provided with a guide column assembly (14) connected to the stop plate (16), and a stripping plate (2) is mounted on the stop plate (16); During the process of the upper die base (1) being pressed down on the lower die base (3), the stripping plate (2) contacts the product (6) in the punching position (4) in advance by its own gravity to fix the product (6). Subsequently, the product (6) is punched by the punch (13). At the same time, the upper pad (11) can disperse the punching force generated instantaneously by the upper die base (1).
2. The opening and closing stamping die according to claim 1, characterized in that: The stripping plate (2) is provided with an upper movable groove (21), an upper spring (22) is provided in the upper movable groove (21), the upper spring (22) pushes an upper stripping block (23) moving in the upper movable groove (21), and the punch (13) passes through the stripping plate (2); When the upper die base (1) is pressed down on the lower die base (3), the stripper plate (2) contacts the product (6), and at this time, the upper stripper block (23) is pushed into the upper movable groove (21) by the product (6); When the upper die base (1) is separated from the lower die base (3), the upper spring (22) pushes the upper stripping block (23) to extend out of the upper movable groove (21). At this time, the upper stripping block (23) pushes the product (6) away from the stripping plate (2).
3. The opening and closing stamping die according to claim 2, characterized in that: An elastic buffer (15) is connected between the upper clamping plate (12) and the stop plate (16).
4. The opening and closing stamping die according to claim 2, characterized in that: The top wall of the upper stripping block (23) matches the opening shape of the upper movable groove (21).
5. The opening and closing stamping die according to claim 1, characterized in that: A lower pad (31) is provided between the lower die base (3) and the lower die plate (32).
6. The opening and closing stamping die according to claim 1, characterized in that: The punching position (4) is provided with a lower movable groove (42), a lower spring (43) is provided in the lower movable groove (42), and the lower spring (43) pushes a lower stripping block (44) located in the lower movable groove (42) to move; When the upper die base (1) is pressed down on the lower die base (3), the product (6) pushes the lower stripping block (44) into the lower movable groove (42) and the product (6) is in close contact with the punching position (4); When the upper die base (1) is separated from the lower die base (3), the lower spring (43) pushes the lower stripping block (44) to extend out of the lower movable groove (42). At this time, the lower stripping block (44) pushes the product (6) away from the punching position (4).
7. The opening and closing stamping die according to claim 6, characterized in that: The top wall of the lower stripping block (44) matches the opening shape of the lower movable groove (42).
8. An opening and closing stamping die according to any one of claims 1 to 7, characterized in that: The lower template (32) is provided with a plurality of punching positions (4).
9. The opening and closing stamping die according to claim 8, characterized in that: A plurality of the punching positions (4) are arranged in an array on the lower template (32), and two adjacent punching positions (4) are connected to each other. The outer sides of the punching positions (4) located on the outermost sides are provided with feed and discharge openings (41) located on the side of the lower template (32), and a loading and pushing mechanism (5) is provided next to one of the feed and discharge openings (41). The loading and pushing mechanism (5) is used to feed the product (6) from one of the feed and discharge openings (41) into the punching position (4) located on the outermost side of the lower template (32). At this time, another product (6) in the punching position (4) located on the outermost side of the lower template (32) is pushed to the adjacent punching position (4) by the pushed-in product (6) for secondary punching.