Quick replacement mechanism for side-middle piece punching die
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FULIWANG PRECISION ELECTROMECHANICAL (NANTONG) CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-21
AI Technical Summary
Existing edge and center punching dies cannot quickly change punched parts during punching operations, which affects punching efficiency.
The system employs a combination of components including a mold, a first support, a first motor, a first reducer, a first connecting shaft, a first eccentric block, a first connecting plate, a first lifting plate, a second support, a second motor, a second reducer, a second connecting shaft, a second eccentric block, a second connecting plate, a second lifting plate, a mounting frame, and an electric slide table to achieve automated workpiece clamping and movement. The eccentric block drives the lifting plate to perform punching operations, allowing for quick replacement of processed parts.
It enables quick replacement of edge and center punching dies and automated punching, thus improving punching efficiency.
Smart Images

Figure CN224525759U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of punching dies, and in particular to a quick-change mechanism for a side-center punching die. Background Technology
[0002] Punching dies are a type of punching die, mainly used to process holes of various shapes in materials such as sheets, strips, and coils. They are key process equipment for punching metal or non-metal materials in industrial production. Therefore, a quick-change mechanism for edge and center punching dies is particularly needed.
[0003] However, most existing edge-and-center punching dies cannot quickly change punched parts during punching operations, which affects punching efficiency.
[0004] To address the aforementioned issues, a search revealed a patent with publication number CN 114536453 A, which discloses a punching die. The paper states that "currently, through holes on mobile phone cases are typically formed by punching the case with a punch according to the type of mobile phone being used. However, waste is generated after punching, and because the waste is small and scattered on the worktable, cleaning and collection are difficult." This application uses a transmission component to drive the hollow punch of the first fixed plate to punch the mobile phone case fixed to the fixed block. The hollow punch passes through a collection groove to punch the case. After punching, the waste adheres to the hollow punch. Subsequently, as the hollow punch moves away from the collection groove, the ejector pin in the hollow punch pushes the waste out, causing it to fall into the collection groove. The collection groove serves both punching and waste collection functions, ensuring that the waste is collected after punching, preventing it from scattering on the worktable and facilitating waste collection. The mounting post of the pad passes through the second fixed plate and connects to the pressing plate. The second fixing plate is designed to prevent the pad from obstructing the downward movement of the base plate. As the pressing plate moves the first fixing plate towards the collection groove, the second fixing plate abuts against the second positioning block, restricting its movement. This prevents the ejector pin in the hollow punch from remaining directly above the collection groove. The pressing plate continues to move until it abuts against the second fixing plate, completing the punching process. During the pressing plate's reset process, the waste material in the hollow punch falls into the collection groove after contacting the ejector pin, thus achieving waste collection through the cooperation of the hollow punch of the first fixing plate and the ejector pin of the second fixing plate. When the pressing plate moves away from the lower die base, the base plate moves the second fixing plate upwards. The distance between the first and second fixing blocks is controlled by the driving component, allowing the fixing blocks to accommodate different lengths of mobile phone cases, making the cases fit more stably on the fixing blocks. However, during punching operations, the punched workpiece cannot be quickly changed, affecting punching efficiency.
[0005] In light of this, in-depth research into the aforementioned issues led to the creation of this case. Utility Model Content
[0006] The purpose of this utility model is to provide a quick-change mechanism for edge and center piece punching dies, so as to solve the problem mentioned in the background art that most existing edge and center piece punching dies cannot quickly change punched parts during punching operations, which affects punching efficiency.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a quick-change mechanism for edge and center piece punching dies, comprising a die, a first bracket fixedly mounted on the upper surface of the die, a first motor fixedly mounted on one side surface of the first bracket, a first reducer fixedly mounted on the output end of the first motor, a first connecting shaft fixedly connected to the output end of the first reducer, a first eccentric block bearing connected to the other end of the first connecting shaft, a first connecting plate bearing connected to the outer wall of the first eccentric block, a first connecting block bearing connected to the other end of the first connecting plate, a first lifting plate fixedly connected to one side surface of the first connecting block, and a first punching die fixedly mounted on one end of the first lifting plate. A second bracket is fixedly mounted on the upper surface of the tool. A second motor is fixedly mounted on one side surface of the second bracket. A second reducer is fixedly mounted on the output end of the second motor. A second connecting shaft is fixedly connected to the output end of the second reducer. A second eccentric block is connected to the other end of the second connecting shaft by a bearing. A second connecting plate is connected to the outer wall of the second eccentric block by a bearing. A second connecting block is connected to the other end of the second connecting plate by a bearing. A second lifting plate is fixedly connected to one side surface of the second connecting block. A second punching die is fixedly mounted on one end of the second lifting plate. A mounting frame is fixedly mounted on the upper surface of the die. An electric slide is mounted on one end of the mounting frame. A mounting block is mounted on one end of the electric slide.
[0008] Preferably, the first eccentric block forms a rotating structure with the first support via a first connecting shaft.
[0009] Preferably, the two ends of the first eccentric block are connected to the first connecting shaft and the first connecting plate bearing, respectively.
[0010] Preferably, the second eccentric block forms a rotating structure with the second support via the second connecting shaft.
[0011] Preferably, the two ends of the second eccentric block are connected to the second connecting shaft and the bearing of the second connecting plate, respectively.
[0012] Preferably, a slider is fixedly installed on one side surface of the first lifting plate, and a slide rail is fixedly installed on one side surface of the first bracket.
[0013] Preferably, the slider and the slide rail form a sliding structure.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the quick-change mechanism for the side-center punching die, through the setting of the mounting frame, electric slide, and mounting block, allows the clamping jaws to be installed on the mounting block during processing, and the clamping jaws can clamp the workpiece. During processing, the electric slide moves along with the workpiece, which can realize automated punching work. After the punching work is completed, the electric slide can automatically send the workpiece away, and the processed parts can be quickly changed. Attached Figure Description
[0015] Figure 1 This is a side view of the appearance structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the structure in which the first bracket and the slide rail cooperate with each other according to this utility model;
[0017] Figure 3 This is a schematic diagram of the interaction between the second lifting plate and the second punching die of this utility model;
[0018] Figure 4 This is a schematic diagram of the structure in which the mounting bracket and the electric slide table of this utility model cooperate.
[0019] In the diagram: 1. Mold; 2. First support; 3. First motor; 4. First reducer; 5. First connecting shaft; 6. First eccentric block; 7. First connecting plate; 8. First connecting block; 9. First lifting plate; 10. First punching die; 11. Second support; 12. Second motor; 13. Second reducer; 14. Second connecting shaft; 15. Second eccentric block; 16. Second connecting plate; 17. Second connecting block; 18. Second lifting plate; 19. Second punching die; 20. Slider; 21. Slide rail; 22. Mounting bracket; 23. Electric slide table; 24. Mounting block. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1-4This utility model provides a technical solution: a quick-change mechanism for a punching die for a side panel, comprising a die 1, a first bracket 2 fixedly mounted on the upper surface of the die 1, a first motor 3 fixedly mounted on one side surface of the first bracket 2, a first reducer 4 fixedly mounted on the output end of the first motor 3, a first connecting shaft 5 fixedly connected to the output end of the first reducer 4, a first eccentric block 6 bearing connected to the other end of the first connecting shaft 5, a first connecting plate 7 bearing connected to the outer wall of the first eccentric block 6, a first connecting block 8 bearing connected to the other end of the first connecting plate 7, a first lifting plate 9 fixedly connected to one side surface of the first connecting block 8, and a first... A punching die 10 has a second bracket 11 fixedly mounted on its upper surface. A second motor 12 is fixedly mounted on one side surface of the second bracket 11. A second reducer 13 is fixedly mounted on the output end of the second motor 12. A second connecting shaft 14 is fixedly connected to the output end of the second reducer 13. A second eccentric block 15 is bearing-connected to the other end of the second connecting shaft 14. A second connecting plate 16 is bearing-connected to the outer wall of the second eccentric block 15. A second connecting block 17 is bearing-connected to the other end of the second connecting plate 16. A second lifting plate 18 is fixedly connected to one side surface of the second connecting block 17. A second punching die 19 is fixedly mounted on one end of the second lifting plate 18. The upper surface of the die 1 is fixedly mounted with a second bracket 11. A mounting bracket 22 is fixedly installed, with an electric slide table 23 mounted at one end of the mounting bracket 22 and a mounting block 24 mounted at the other end of the electric slide table 23. Through the arrangement of the mold 1, first support 2, first motor 3, first reducer 4, first connecting shaft 5, first eccentric block 6, first connecting plate 7, first connecting block 8, first lifting plate 9, first punching die 10, second support 11, second motor 12, second reducer 13, second connecting shaft 14, second eccentric block 15, second connecting plate 16, second connecting block 17, second lifting plate 18, second punching die 19, slider 20, slide rail 21, mounting bracket 22, electric slide table 23, and mounting block 24, processing can be carried out on the mounting bracket 24. The clamping jaws are installed on block 24, which can grip the workpiece. During processing, the electric slide 23 moves, carrying the workpiece with it, which can realize automated punching. After the punching is completed, the electric slide 23 can automatically send the workpiece away, and the workpiece can be quickly changed. When punching, the first motor 3 and the second motor 12 are started, causing the first connecting shaft 5 and the second connecting shaft 14 to rotate. At this time, the first eccentric block 6 and the second eccentric block 15 will rotate. The first eccentric block 6 moves up and down through the first connecting block 8, carrying the first lifting plate 9. At the same time, the second eccentric block 15 moves up and down through the second connecting block 17, carrying the second lifting plate 18. The first punching die 10 and the second punching die 19 will then perform the punching operation.
[0022] Furthermore, the first eccentric block 6 forms a rotating structure with the first support 2 via the first connecting shaft 5. With the setting of the first eccentric block 6, the first lifting plate 9 can be lifted and lowered when the first eccentric block 6 rotates.
[0023] Furthermore, the two ends of the first eccentric block 6 are respectively connected to the first connecting shaft 5 and the first connecting plate 7 bearings. Through the setting of the first connecting shaft 5, the first connecting shaft 5 can rotate the first eccentric block 6, thereby allowing the first lifting plate 9 to perform lifting and lowering movements.
[0024] Furthermore, the second eccentric block 15 forms a rotating structure with the second bracket 11 via the second connecting shaft 14. With the setting of the second eccentric block 15, the second lifting plate 18 can move up and down when the second eccentric block 15 rotates.
[0025] Furthermore, the two ends of the second eccentric block 15 are respectively connected to the second connecting shaft 14 and the second connecting plate 16 bearings. With the setting of the second connecting shaft 14, the second eccentric block 15 can rotate when the second connecting shaft 14 rotates, thereby allowing the second lifting plate 18 to rise and fall.
[0026] Furthermore, a slider 20 is fixedly installed on one side surface of the first lifting plate 9, and a slide rail 21 is fixedly installed on one side surface of the first bracket 2. With the setting of the first lifting plate 9, the first lifting plate 9 can lift the first punching die 10 to perform punching work.
[0027] Furthermore, the slider 20 and the slide rail 21 form a sliding structure. With the slider 20 and the slide rail 21, when the first lifting plate 9 and the second lifting plate 18 are in lifting motion, the slider 20 will slide on the slide rail 21. The slider 20 can limit the lifting motion of the first lifting plate 9 and the second lifting plate 18.
[0028] Working principle: During processing, grippers can be installed on mounting block 24 to clamp the workpiece. During processing, the electric slide 23 moves, carrying the workpiece. During punching, the first motor 3 and the second motor 12 start, causing the first connecting shaft 5 and the second connecting shaft 14 to rotate. At this time, the first eccentric block 6 and the second eccentric block 15 will rotate. The first eccentric block 6 moves up and down through the first connecting block 8, carrying the first lifting plate 9. At the same time, the second eccentric block 15 moves up and down through the second connecting block 17, carrying the second lifting plate 18. The first punching die 10 and the second punching die 19 will then perform the punching operation.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A quick-change mechanism for edge and center piece punching dies, comprising a die (1), characterized in that: A first bracket (2) is fixedly installed on the upper surface of the mold (1). A first motor (3) is fixedly installed on one side surface of the first bracket (2). A first reducer (4) is fixedly installed at the output end of the first motor (3). A first connecting shaft (5) is fixedly connected to the output end of the first reducer (4). A first eccentric block (6) is connected to the other end of the first connecting shaft (5) by a bearing. A first connecting plate (7) is connected to the outer wall of the first eccentric block (6) by a bearing. A first connecting block (8) is connected to the other end of the first connecting plate (7) by a bearing. A first lifting plate (9) is fixedly connected to one side surface of the first connecting block (8). A first punching die (10) is fixedly installed at one end of the first lifting plate (9). A second bracket (11) is fixedly installed on the upper surface of the mold (1). A first punching die (10) is fixedly installed on one side surface of the second bracket (11). The mold (1) is equipped with a second motor (12), and a second reducer (13) is fixedly installed at the output end of the second motor (12). A second connecting shaft (14) is fixedly connected at the output end of the second reducer (13). A second eccentric block (15) is connected to the other end of the second connecting shaft (14) by a bearing. A second connecting plate (16) is connected to the outer wall of the second eccentric block (15) by a bearing. A second connecting block (17) is connected to the other end of the second connecting plate (16) by a bearing. A second lifting plate (18) is fixedly connected to one side surface of the second connecting block (17). A second punching die (19) is fixedly installed at one end of the second lifting plate (18). A mounting bracket (22) is fixedly installed on the upper surface of the mold (1). An electric slide table (23) is installed at one end of the mounting bracket (22). A mounting block (24) is installed at one end of the electric slide table (23).
2. The quick-change mechanism for edge and center piece punching die according to claim 1, characterized in that: The first eccentric block (6) forms a rotating structure with the first support (2) through the first connecting shaft (5).
3. The quick-change mechanism for edge and center piece punching die according to claim 1, characterized in that: The two ends of the first eccentric block (6) are respectively connected to the bearings of the first connecting shaft (5) and the first connecting plate (7).
4. The quick-change mechanism for edge and center piece punching die according to claim 1, characterized in that: The second eccentric block (15) forms a rotating structure with the second bracket (11) through the second connecting shaft (14).
5. The quick-change mechanism for edge and center piece punching die according to claim 1, characterized in that: The two ends of the second eccentric block (15) are respectively connected to the bearings of the second connecting shaft (14) and the second connecting plate (16).
6. The quick-change mechanism for edge and center piece punching die according to claim 1, characterized in that: A slider (20) is fixedly installed on one side surface of the first lifting plate (9), and a slide rail (21) is fixedly installed on one side surface of the first bracket (2).
7. The quick-change mechanism for edge and center piece punching die according to claim 6, characterized in that: The slider (20) and the slide rail (21) form a sliding structure.