Bending and positioning structure of stamping die
By introducing positioning plates and movable limiting devices into the stamping mold, the problem of unbalanced workpiece falling into the blanking groove during stamping is solved, and stable positioning and efficient production of workpieces are achieved.
Patent Information
- Application Number
- CN202422015263.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-08-20
AI Technical Summary
During the stamping process of insert plastic products, the workpiece is difficult to maintain balance and falls into the blanking groove, resulting in difficulty in stamping processing.
A stamping mold bending positioning structure is designed, including a positioning plate and a movable limiting device. The workpiece is fixed on the positioning plate through a positioning rod and a limiting block, and the spring is used to push the movable limiting block to tighten the workpiece to avoid its imbalance, and to maintain the workpiece level with the support component.
The stable positioning of the workpiece is achieved, avoiding falling into the blanking trough, simplifying mold transformation, reducing costs, shortening development cycles, and improving production efficiency.
Smart Images
Figure CN223234907U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of stamping dies, and in particular relates to a bending and positioning structure of a stamping die. Background Art
[0002] Insert plastic products are parts made by combining materials such as metal and wood with plastic materials through injection molding. Insert plastic products offer flexible design and possess higher mechanical strength than conventional plastic parts. During production, insert plastic products undergo multiple steps, including injection molding and stamping, depending on the product design. However, due to the irregular shape of the injected insert plastic product, positioning during stamping is challenging. Furthermore, since the stamping bend occupies a large portion of the product, placing it on a positioning plate can easily cause the product to lose balance and fall into the blanking chute, making the stamping process difficult to complete.
[0003] Therefore, the above problems need to be solved urgently. Utility Model Content
[0004] Purpose of the utility model: In order to overcome the above shortcomings, the utility model provides a stamping die bending positioning structure, which presses and positions the workpiece on the upper side of the positioning plate to prevent the workpiece from becoming unbalanced and falling into the blanking chute, thereby realizing the positioning and fixation of the workpiece during the stamping process.
[0005] Technical solution: In order to achieve the above-mentioned purpose, the utility model provides a stamping die bending positioning structure, including a positioning plate and a blanking plate. The positioning plate is arranged on the upper side of the blanking plate, and the positioning plate is provided with a blanking trough, and the blanking trough passes through the blanking plate. The positioning plate is provided with a fixed limit block and a movable limit device. The fixed limit block is positioned and connected to the top surface of the positioning plate, and the movable limit device is movably connected to the top surface of the positioning plate. A positioning rod is passed through the positioning plate. One end of the workpiece is abutted against the fixed limit block, and the positioning rod passes through the through hole provided on the workpiece, and the workpiece is positioned. The movable limit device presses the workpiece against the side wall of the fixed limit block to prevent the workpiece from becoming unbalanced and falling into the blanking trough, thereby positioning and fixing the workpiece. The utility model has a simple structure and is easy to implement. It can be used to modify existing molds, reduce mold costs, shorten development cycles, and improve production efficiency.
[0006] Furthermore, in the above-mentioned stamping die bending and positioning structure, the movable limiting device includes a first connecting block and a second connecting block. The thickness of the first connecting block and the second connecting block is equal to that of the positioning plate. The first connecting block and the second connecting block are embedded in the positioning plate, and the bottom surfaces of the first connecting block and the second connecting block abut against the blanking plate. The first connecting block is provided with a through groove on the side close to the fixed limiting block, and a movable limiting block is provided in the through groove. The bottom surface of the movable limiting block abuts against the blanking plate, and the top surface of the movable limiting block is higher than the top surface of the positioning plate. The first connecting block is provided with a horizontal through hole, which is arranged horizontally. A spring is provided in the horizontal through hole. The two ends of the spring abut against the second connecting block and the movable limiting block respectively. The spring pushes the movable limiting block to move toward the fixed limiting block. The movable limiting block pushes the workpiece, presses the workpiece against the side wall of the fixed limiting block, and fixes the workpiece. Move the movable limiting block away from the fixed limiting block to release the workpiece.
[0007] Furthermore, in the above-mentioned stamping die bending positioning structure, the fixed limit block includes a first fixed block, a second fixed block, and a third fixed block. The first fixed block and the movable limit block are arranged on the same horizontal line, the second fixed block is arranged between the first fixed block and the movable limit block, and the second fixed block is arranged on the side of the first fixed block away from the blanking chute. The third fixed block and the second fixed block are arranged on the same vertical line, and the third fixed block is arranged on the side of the first fixed block close to the blanking chute. The second fixed block and the third fixed block respectively position the upper and lower sides of the workpiece, and the first fixed block provides a reference for the left and right positioning of the product, and at the same time, together with the movable limit block, presses and fixes the workpiece to prevent the workpiece from becoming unbalanced and falling into the blanking chute.
[0008] Furthermore, in the above-mentioned stamping die bending and positioning structure, the second fixing block is provided with a plurality of avoidance grooves arranged horizontally to avoid pins on the workpiece, thereby preventing the pins from being damaged and causing damage to the workpiece.
[0009] Furthermore, in the aforementioned stamping die bending and positioning structure, the first connecting block is provided with a first support portion. The first support portion is located at one end of the connecting block near the blanking chute, and the top surface of the first support portion is higher than the top surface of the first connecting block. The first support portion supports the workpiece, keeping it level and ensuring the quality of the stamping and bending process.
[0010] Furthermore, in the aforementioned stamping die bending positioning structure, the second connecting block is provided with a second support portion, which is located at one end of the connecting block near the blanking chute and is higher than the top surface of the second connecting block. The second support portion supports the workpiece, keeping it level and ensuring the quality of the stamping and bending.
[0011] Furthermore, in the above-mentioned stamping die bending positioning structure, the fixed limit block is passed through the through hole provided in the positioning plate, the lower end of the fixed limit block abuts against the top surface of the blanking plate, and the top surface of the fixed limit block is higher than the top surface of the positioning plate.
[0012] Furthermore, in the aforementioned stamping die bending positioning structure, the positioning plate and the top surface of the movable stopper are each provided with a plurality of avoidance holes, which provide clearance for protruding parts of the workpiece. The avoidance holes avoid these protrusions on the workpiece, keeping the workpiece level and ensuring the quality of the stamping and bending process.
[0013] Furthermore, in the above-mentioned stamping die bending and positioning structure, in order to improve production efficiency, two or more positioning plates are provided on the top surface of the blanking plate, and the positioning plates are mirror-flipped along the center of the blanking plate.
[0014] Furthermore, in the aforementioned stamping die bending and positioning structure, a lower die base is provided on the underside of the blanking plate, and a strip plate is provided between the lower die base and the blanking plate. The strip plates are arrayed on the top surface of the lower die base, and the blanking trough is provided between the strip plates. The blanking plate, strip plates, and lower die base are sequentially connected.
[0015] As can be seen from the above technical solution, the present invention has the following beneficial effects: The present invention's bending and positioning structure for the stamping die uses a movable stopper to press the workpiece against the sidewall of the fixed stopper, preventing the workpiece from becoming unbalanced and falling into the chute, thereby securing the workpiece in place. The present invention has a simple structure and is easy to implement, allowing modification of existing dies, reducing die costs, shortening development cycles, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a structural diagram of the bending and positioning structure of the stamping die of the utility model;
[0017] Figure 2 for Figure 1 A partial enlarged view of
[0018] Figure 3 is a structural diagram of the first connecting block;
[0019] Figure 4 Schematic diagram of the workpiece status.
[0020] In the figure: 1. positioning plate, 11. blanking trough, 12. fixed limiting block, 121. first fixed block, 122. second fixed block, 1221. avoidance groove, 123. third fixed block, 13. movable limiting device, 131. first connecting block, 1311. horizontal through hole, 1312. through groove, 1313. first supporting part, 132. second connecting block, 1321. second supporting part, 133. movable limiting block, 14. avoidance hole, 15. positioning rod, 2. blanking plate, 3. strip plate, 4. lower die base. DETAILED DESCRIPTION
[0021] Example 1
[0022] like Figure 1-3A stamping die bending positioning structure shown includes a positioning plate 1 and a blanking plate 2. The positioning plate 1 is arranged on the upper side of the blanking plate 2. The positioning plate 1 is provided with a blanking trough 11, and the blanking trough 11 passes through the blanking plate 2. The positioning plate 1 is provided with a fixed limiting block 12 and a movable limiting device 13. The fixed limiting block 12 is positioned and connected to the top surface of the positioning plate 1, and the movable limiting device 13 is movably connected to the top surface of the positioning plate 1. A positioning rod 15 is passed through the positioning plate 1. The movable limiting device 13 includes a first connecting block 131 and a second connecting block 132. The thickness of the first connecting block 131 and the second connecting block 132 is equal to that of the positioning plate 1. The first connecting block 131 and the second connecting block 132 are embedded in the positioning plate 1, and the bottom surfaces of the first connecting block 131 and the second connecting block 132 are in contact with the blanking plate 2. The first connecting block 131 is provided with a through slot 1312 on one side close to the fixed limit block 12, and a movable limit block 133 is provided in the through slot 1312. The bottom surface of the movable limit block 133 abuts against the blanking plate 2, and the top surface of the movable limit block 133 is higher than the top surface of the positioning plate 1. The first connecting block 131 is provided with a horizontal through hole 1311. The horizontal through hole 1311 is arranged horizontally, and a spring is provided in the horizontal through hole 1311. The two ends of the spring abut against the second connecting block 132 and the movable limit block 133 respectively. The fixed limit block 12 is passed through the through hole provided in the positioning plate 1. The lower end of the fixed limit block 12 abuts against the top surface of the blanking plate 2, and the top surface of the fixed limit block 12 is higher than the top surface of the positioning plate 1. The fixed limit block 12 includes a first fixed block 121, a second fixed block 122, and a third fixed block 123. The first fixed block 121 and the movable limit block 133 are arranged on the same horizontal line, the second fixed block 122 is arranged between the first fixed block 121 and the movable limit block 133, and the second fixed block 122 is arranged on the side of the first fixed block 121 away from the blanking chute 11. The third fixed block 123 and the second fixed block 122 are arranged on the same vertical line, and the third fixed block 123 is arranged on the side of the first fixed block 121 close to the blanking chute 11. The second fixed block 122 is provided with a plurality of avoidance grooves 1221, and the avoidance grooves 1221 are arranged horizontally. The first connecting block 131 is provided with a first support portion 1313, and the first support portion 1313 is provided at one end of the connecting block 131 close to the blanking chute 11, and the top surface of the first support portion 1313 is higher than the top surface of the first connecting block 131. The first support portion 1313 supports the workpiece. The second connecting block 132 is provided with a second supporting portion 1321, and the second supporting portion 1321 is provided at one end of the connecting block 131 close to the blanking trough 11, and the second supporting portion 1321 is higher than the top surface of the second connecting block 132. The second supporting portion 1321 supports the workpiece. The top surfaces of the positioning plate 1 and the movable limiting device 13 are respectively provided with a plurality of avoidance holes 14, and the avoidance holes 14 form avoidance for the protruding parts of the workpiece. In order to improve production efficiency, two or more positioning plates 1 are provided on the top surface of the blanking plate 2, and the positioning plate 1 is mirror-flipped along the center of the blanking plate 2. A lower die base 4 is provided on the lower side of the blanking plate 2, and a strip plate 3 is provided between the lower die base 4 and the blanking plate 2.The strips 3 are arrayed on the top surface of the lower die base 4, the blanking troughs 11 are arranged between the strips 3, and the blanking plates 2, the strips 3, and the lower die base 4 are connected and arranged in sequence.
[0023] The workpiece is placed on the top surface of the positioning plate 1. The first support part 1313 and the second support part 1321 support the workpiece. The avoidance groove 1221 avoids the pins on the workpiece. The avoidance hole 14 avoids the protrusion of the workpiece, so that the workpiece is in a horizontal position. One end of the workpiece is placed against the first fixed block 121. The positioning rod 15 passes through the through hole provided on the workpiece. The second fixed block 122 and the third fixed block 123 position the upper and lower sides of the workpiece respectively, and the workpiece is positioned. The above-mentioned spring pushes the movable limit block 133 to move toward the fixed limit block 12. The movable limit block 133 pushes the workpiece, pressing the workpiece against the side wall of the fixed limit block 12 to fix the workpiece. Then the stamping and bending operation can be carried out.
[0024] like Figure 4 In the shown bending and positioning structure of the stamping die, the workpiece is mounted on the top surface of the positioning plate 1 before stamping. After stamping, one end of the workpiece is stamped into the blanking trough 11.
[0025] The above embodiments are illustrative and intended to illustrate the technical concepts and features of the present invention so that those skilled in the art can understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A stamping die bending positioning structure, characterized by: The invention comprises a positioning plate (1) and a blanking plate (2), wherein the positioning plate (1) is arranged on the upper side of the blanking plate (2), the positioning plate (1) is provided with a blanking groove (11), and the blanking groove (11) passes through the blanking plate (2); the positioning plate (1) is provided with a fixed limiting block (12) and a movable limiting device (13); the fixed limiting block (12) is positioned and connected to the top surface of the positioning plate (1), and the movable limiting device (13) is movably connected to the top surface of the positioning plate (1); a positioning rod (15) is passed through the positioning plate (1); one end of the workpiece is abutted against the fixed limiting block (12), the positioning rod (15) passes through a through hole provided on the workpiece, and the movable limiting device (13) presses the workpiece against the side wall of the fixed limiting block (12).
2. The stamping die bending and positioning structure according to claim 1, characterized in that: The movable limiting device (13) comprises a first connecting block (131) and a second connecting block (132); the thickness of the first connecting block (131) and the second connecting block (132) is equal to that of the positioning plate (1); the first connecting block (131) and the second connecting block (132) are embedded in the positioning plate (1); the bottom surfaces of the first connecting block (131) and the second connecting block (132) are in contact with the blanking plate (2); a through groove (1312) is provided on the side of the first connecting block (131) close to the fixed limiting block (12); the through groove (131 2) is provided with a movable limit block (133), the bottom surface of the movable limit block (133) is in contact with the blanking plate (2), and the top surface of the movable limit block (133) is higher than the top surface of the positioning plate (1); the first connecting block (131) is provided with a horizontal through hole (1311), the horizontal through hole (1311) is arranged horizontally, and a spring is provided in the horizontal through hole (1311), the two ends of the spring are respectively in contact with the second connecting block (132) and the movable limit block (133), and the spring pushes the movable limit block (133) to move toward the fixed limit block (12).
3. The stamping die bending and positioning structure according to claim 2, characterized in that: The fixed limit block (12) comprises a first fixed block (121), a second fixed block (122), and a third fixed block (123); the first fixed block (121) and the movable limit block (133) are arranged on the same horizontal line, the second fixed block (122) is arranged between the first fixed block (121) and the movable limit block (133), and the second fixed block (122) is arranged on a side of the first fixed block (121) away from the blanking trough (11); the third fixed block (123) and the second fixed block (122) are arranged on the same vertical line, and the third fixed block (123) is arranged on a side of the first fixed block (121) close to the blanking trough (11).
4. The stamping die bending and positioning structure according to claim 3, characterized in that: The second fixing block (122) is provided with a plurality of avoidance grooves (1221), and the avoidance grooves (1221) are arranged horizontally.
5. The stamping die bending and positioning structure according to claim 2, characterized in that: The first connecting block (131) is provided with a first supporting portion (1313), the first supporting portion (1313) being provided at one end of the connecting block (131) close to the blanking trough (11), the top surface of the first supporting portion (1313) being higher than the top surface of the first connecting block (131).
6. The stamping die bending and positioning structure according to claim 2, characterized in that: The second connecting block (132) is provided with a second supporting portion (1321), the second supporting portion (1321) being provided at one end of the connecting block (131) close to the blanking trough (11), and the second supporting portion (1321) being higher than the top surface of the second connecting block (132).
7. The stamping die bending and positioning structure according to claim 1, characterized in that: The fixed limit block (12) is passed through a through hole provided on the positioning plate (1), the lower end of the fixed limit block (12) abuts against the top surface of the blanking plate (2), and the top surface of the fixed limit block (12) is higher than the top surface of the positioning plate (1).
8. The stamping die bending and positioning structure according to claim 1, characterized in that: The top surfaces of the positioning plate (1) and the movable limiting device (13) are respectively provided with a plurality of avoidance holes (14), and the avoidance holes (14) are used to avoid raised parts of the workpiece.
9. The stamping die bending and positioning structure according to claim 1, characterized in that: Two or more positioning plates (1) are provided on the top surface of the blanking plate (2), and the positioning plates (1) are mirror-image-flipped along the center of the blanking plate (2).
10. The stamping die bending and positioning structure according to claim 1, characterized in that: A lower die base (4) is provided on the lower side of the blanking plate (2), and a strip plate (3) is provided between the lower die base (4) and the blanking plate (2); the strip plates (3) are arranged in an array on the top surface of the lower die base (4), and the blanking trough (11) is provided between the strip plates (3); the blanking plate (2), the strip plates (3), and the lower die base (4) are connected and provided in sequence.