Miniature product notch punch die
By designing a micro-product notch punching die, and utilizing the support limit of the transfer plate and spring structure, the material strip is punched in two steps, which solves the problems of the material receiving point affecting the assembly quality and insufficient punch strength in micro-product notch punching, and achieves precise positioning and efficient mass production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU BAITERUI IND TECHNOLOGY CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-03
AI Technical Summary
In existing technologies, the blanking points left during the notch cutting of micro-products affect the product assembly quality and performance. The punches are subjected to greater stress, making mass production difficult and resulting in low production efficiency and increased costs.
A miniature product notch punching die is used. By setting a transfer plate to restrict the movement direction of the strip, and combining the punching component and the bearing component, the punching is carried out in two steps using a spring-loaded bearing and limiting structure. This ensures that the punch only punches half the thickness of the strip each time, reducing punching stress and increasing punch strength.
It enables precise positioning and punching of micro-product notches, avoids material receiving points, improves product assembly quality and performance, solves the problem of insufficient punch strength leading to non-mass production, reduces production costs and improves production efficiency.
Smart Images
Figure CN224444272U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of product punching technology, and in particular to a micro product notch punching die. Background Technology
[0002] In the field of mechanical processing and manufacturing, with the continuous advancement of technology and the increasing diversification of market demands, the design and production of various micro-products are receiving increasing attention. Micro-products have wide applications in numerous industries such as electronic equipment and precision instruments. Their emergence has greatly promoted the miniaturization and integration of these industries, meeting people's pursuit of product portability and high performance. At the same time, the refined design of micro-products has also spurred continuous innovation in manufacturing processes, improving the technological level and production efficiency of the entire manufacturing industry, and bringing new development opportunities to related industries.
[0003] In product structure design, due to design constraints and various relationships, situations often arise where micro-sized product notches need to be designed, especially those notches in unique locations, often situated between products. To achieve the punching of these micro-sized notches, the traditional approach is to manufacture the matching punch according to the shape of the notch and design the receiving point at its location. This design method is partly to ensure punching accuracy and partly a necessary compromise given the technological limitations at the time. Additionally, some companies may try to improve the punching effect by optimizing the overall mold structure, but generally, these methods all revolve around achieving the punching target as much as possible.
[0004] However, existing technologies have significant shortcomings in addressing the notch punching problem for micro-products. For the product itself, during customer assembly, the area where the punching marks meet needs to fit tightly with the assembly parts. This means the presence of these marks affects the product's assembly quality and performance. From a production perspective, this punching method subjects the punch to significant stress, greatly reducing its lifespan and hindering mass production. This directly leads to a substantial increase in production costs and extremely low production efficiency. Utility Model Content
[0005] To overcome the above-mentioned technical problems, this application provides a miniature product notch punching die.
[0006] This application provides a miniature product notch punching die, which adopts the following technical solution:
[0007] A micro-product notch punching die includes a punching table; a transfer plate is provided on the punching table to limit the movement direction of the material strip; a punching assembly is provided above the transfer plate, and a receiving assembly is provided below it; the punching assembly includes a punch and a cutting head, and the receiving assembly includes a bearing and a cutting seat; the cutting head is disposed inside the punch, and the cutting seat is disposed inside the bearing, the shapes of the punch and the bearing are correspondingly set according to the shape of the product; a movable cavity is formed in the punching table, the cutting seat is connected to a cutting seat rod, and a second spring is sleeved on the cutting seat rod; the top of the second spring abuts against the bearing, so that the bearing is movably mounted on the product. The movable cavity is described above; the bearing has limiting protrusions at both ends, and the punching table has pad slots on both sides that communicate with the movable cavity, the pad slots being perpendicular to the movable cavity; a pad is inserted into the pad slot, and a plug is threaded onto the top of the movable cavity; the plug is used to limit the upward movement height of the bearing, and the pad is used to limit the downward movement height of the bearing; the farthest distance between the top of the pad and the plug is equal to half the thickness of the strip, so that the punch only cuts half the thickness of the strip during the first punch, and after the pad is removed, the punch completely cuts the strip during the second punch.
[0008] By adopting the above technical solution, the feed plate can limit the direction of material strip movement and ensure accurate punching position; the punching component and the bearing component work together to punch the material strip; the shapes of the punch and the bearing are set according to the product shape, which can accurately punch out the required product notch; the bearing is movably installed in the movable cavity by the second spring, which can flexibly adapt to the punching process; the sealing plate and the pad plate limit the upward and downward movement height of the bearing respectively, ensuring the stability of the punching action; the farthest distance between the top of the pad plate and the sealing plate is equal to half the thickness of the material strip, so that the punch only punches half the thickness of the material strip each time, realizing half-shear forming, reducing the punching stress, improving the punch strength, and solving the problem of non-mass production caused by the inability to have material points in micro product notches and insufficient punch strength.
[0009] Preferably, the bottom of the slot of the pad plate and the plug form a space for the support to move. The maximum distance of this space is greater than the thickness of the strip, so as to ensure that the support can cooperate with the punch to complete the punching action.
[0010] By adopting the above technical solution, a transfer plate is set on the punching table to restrict the movement direction of the material strip. Punching components and bearing components are respectively set on the upper and lower parts of the transfer plate. The cutting head is inside the punch and the cutting seat is inside the bearing seat. The shapes of the punch and the bearing seat correspond to the product shape. The cutting seat is connected to a cutting seat rod with a second spring, so that the bearing seat is movably installed in the movable cavity. Limiting protrusions are set at both ends of the bearing seat. A pad is inserted into the pad slot and a seal is installed on the top of the movable cavity. The farthest distance from the top of the pad to the seal is equal to half the thickness of the material strip, so that the punch cuts half the thickness of the material strip each time. Moreover, the maximum distance of the movable space formed between the bottom of the pad slot and the seal is greater than the thickness of the material strip, ensuring that the bearing seat can cooperate with the punch to complete the punching action, realizing two-step punching. The first step is half-shearing to reduce the punching stress of the punch and increase the punch strength. The second step is punching. Since the first step has completed 50% of the material punching, the actual punching stress in the second step is balanced with that in the first step and the punch strength is improved. This solves the problem of not allowing material to be carried in the gap of micro products and the lack of mass production caused by insufficient punch strength.
[0011] Preferably, the material conveying plate has a material conveying guide groove, the material belt is conveyed along the guide path of the material conveying guide groove, and can pass directly below the punching component to achieve precise positioning and punching.
[0012] By adopting the above technical solution, the material conveyor guide groove in the conveyor plate allows the material strip to be conveyed along the guide path and pass directly below the punching assembly, achieving precise positioning and punching of the material strip notch. Simultaneously, the punching table is equipped with a conveyor plate to restrict the material strip's movement direction. The punching assembly cooperates with the bearing assembly, with the cutting head placed inside the punch and the cutting seat placed inside the bearing seat, their shapes corresponding to the product shape. The cutting seat is connected to a cutting seat rod with a second spring, allowing the bearing seat to be movably installed in the movable cavity. The pad and sealing limit the height of the bearing seat movement, ensuring that the punch only punches half the thickness of the material strip each time, completing the punching in two steps. This reduces the punching stress, increases the punch strength, and solves the mass production problems caused by the lack of material points for micro-product notches and insufficient punch strength.
[0013] Preferably, the punching notch on the material transfer plate is connected to the material transfer guide groove, and the position of the punching notch corresponds to the punching position of the punching component, so as to avoid the punching component during punching.
[0014] By adopting the above technical solution, the punching notch is connected to the material transfer guide groove, and its position corresponds to the punching position of the punching component. It can avoid the punching component during punching. Combined with the material transfer plate restricting the movement direction of the material strip, the cooperation between the punching component and the receiving component, and the structure that the punch only punches half the thickness of the material strip each time, the punching stress of the punch can be reduced, the punch strength can be improved, and precise positioning punching can be achieved. It avoids interference with the punching component during punching, which helps to successfully complete the punching of the micro product notch and solves the problem of not allowing material to be carried in the micro product notch and the lack of mass production caused by insufficient punch strength.
[0015] Preferably, in its natural state, the second spring generates an upward lifting force on the bearing, so that the top of the bearing is higher than the top of the cutting seat, thereby forming an initial working state before punching.
[0016] By adopting the above technical solution, an initial working state is formed before punching, ensuring that the punching action is carried out smoothly according to the predetermined process. This, along with other components, completes the punching of micro-product notches, which helps to solve the problem of punching micro-product notches, reduces punching stress, increases punch strength, and enables mass production.
[0017] Preferably, a first spring is sleeved on the cutting rod connected to the cutting head. The first spring is used to provide a restoring force after punching, so that the cutting head returns to its initial position.
[0018] By adopting the above technical solution, a transfer plate is set on the punching table to restrict the movement direction of the material strip. A punching component is set above the transfer plate and a receiving component is set below it. The cutting head is placed inside the punch and the cutting seat is placed inside the receiving seat. The shapes of the punch and the receiving seat correspond to the product shape. The cutting seat rod connected to the cutting seat is fitted with a second spring to allow the receiving seat to be movably installed in the movable cavity. The pad and the plug limit the vertical movement height of the receiving seat, so that the punch only punches half the thickness of the material strip each time. A material transfer guide groove is opened in the transfer plate to achieve precise positioning punching. A punching notch is opened on the transfer plate to avoid the punching component. The second spring makes the top of the receiving seat higher than the top of the cutting seat to form the initial working state. In addition, the cutting head rod connected to the cutting head is fitted with a first spring, which can provide a restoring force for the cutting head after punching to return it to the initial position. This reduces the punching stress of the punch and increases the strength of the punch, solving the problems of not allowing material to be carried in the notch of micro products and the lack of mass production caused by insufficient punch strength.
[0019] Preferably, the movable cavity opened in the punch is used to accommodate the movement of the cutting rod, one end of the cutting rod extends into the movable cavity, and the movement stroke of the cutting rod in the movable cavity is adapted to the elastic deformation of the first spring.
[0020] By adopting the above technical solution, a movable cavity is opened in the punch to accommodate the movement of the cutting rod, so that the cutting rod can move in the movable cavity. The movement stroke of the cutting rod is adapted to the elastic deformation of the first spring. In conjunction with the first spring providing a restoring force after punching, the cutting head can be accurately restored to the initial position, ensuring the normal punching operation of the mold.
[0021] Preferably, it also includes a driving device, which is connected to the punching assembly and is used to drive the punching assembly to perform reciprocating punching motion in a direction perpendicular to the conveyor plate, so as to achieve notch punching of the strip.
[0022] By adopting the above technical solution, a transfer plate is set on the punching table to restrict the movement direction of the strip. The punching component and the bearing component work together to perform the punching operation. The pad and the sealing limit the movement height of the bearing seat so that the punch only punches half the thickness of the strip each time, reducing the punching stress and increasing the strength. Then, the driving device drives the punching component to punch back and forth in a direction perpendicular to the transfer plate, which can realize the punching of the strip at the notch. This solves the problems that the notch of micro products cannot have a material point and the insufficient strength of the punch leads to the lack of mass production.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. The punch cuts only half the thickness of the strip at a time, using a two-step punching method to reduce the punching force and increase the punch strength;
[0025] 2. It avoids leaving material receiving points like in traditional punching methods, thus improving the assembly quality and performance of the product;
[0026] 3. It solves the problem of insufficient punch strength causing non-mass production, reduces product production costs, and improves production efficiency. Attached Figure Description
[0027] Figure 1 and Figure 2 This is a perspective view of this application;
[0028] Figure 3 This is a cross-sectional view of the specific structure of the punching component;
[0029] Figure 4 This is a sectional view of the specific structure of the shearing component;
[0030] Figure 5 It is a three-dimensional view of the specific structure of the punching component and the receiving component;
[0031] Figure 6 It is a three-dimensional view of the specific structure of the shearing component;
[0032] Figure 7 It is a simplified diagram of the process of cutting the material strip.
[0033] Explanation of reference numerals in the attached drawings: 10, material strip; 11, material transfer plate; 111, material transfer guide groove; 112, punching notch; 1, punching table; 101, movable cavity; 102, sealing; 103, pad plate; 104, pad plate slot; 20, drive device; 31, punch; 311, movable cavity; 32, cutter head; 321, cutter head rod; 322, first spring; 41, bearing seat; 411, limiting protrusion; 42, cutter seat; 421, cutter seat rod; 422, second spring; A - material strip thickness is cut by 50%; B - material strip thickness is completely cut. Detailed Implementation
[0034] The present application will be further described in detail below with reference to the accompanying drawings.
[0035] This application mainly adopts a two-step punching and punching amount control method, which achieves the effect of reducing punch stress, improving its strength and solving mass production problems. The following is a further detailed description of this application.
[0036] This application provides a miniature product notch punching die, referring to... Figure 1 and Figure 2 The system includes a punching table 1, a transfer plate 11, a punching assembly, and a receiving assembly. The transfer plate 11 is mounted on the punching table 1 to restrict the movement direction of the strip 10. The punching assembly is mounted above the transfer plate 11, and the receiving assembly is mounted below the transfer plate 11. The two work together to punch the strip 10. This configuration achieves the effect of accurately positioning and punching the strip 10. The transfer plate 11 regulates the movement path of the strip 10, enabling the punching assembly to accurately align with the position to be punched.
[0037] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6 The punching assembly includes a punch 31 and a cutter head 32. The punch 31 plays the main punching function, and its shape is set according to the shape of the product. The punch 31 is hollow inside to accommodate the cutter head 32. The cutter head 32 is disposed inside the punch 31 and is connected to a cutter head 32 rod. A first spring 322 is sleeved on the cutter head 32 rod. The first spring 322 is used to provide a restoring force after punching, so that the cutter head 32 returns to its initial position. A moving cavity 311 is also formed inside the punch 31. One end of the cutter head 32 rod extends into the moving cavity 311, and the movement stroke of the cutter head 32 rod in the moving cavity 311 is adapted to the elastic deformation of the first spring 322.
[0038] The cutting assembly includes a support 41 and a cutter 42. The support 41 is also configured according to the product shape and matches the punch 31. The cutter 42 is disposed within the support 41. The cutter 42 is connected to a cutter 42 rod, and a second spring 422 is sleeved on the cutter 42 rod. The top of the second spring 422 abuts against the support 41, allowing the support 41 to be movably installed within the movable cavity 101 opened in the punching table 1. In its natural state, the second spring 422 generates an upward lifting force on the support 41, making the top of the support 41 higher than the top of the cutter 42, so as to form an initial working state before punching.
[0039] The bearing 41 has limiting protrusions 411 at both ends. The punching table 1 has slots for pads 103 on both sides that communicate with the movable cavity 101. The slots for pads 103 are perpendicular to the movable cavity 101. A pad 103 is inserted into the slot. A plug 102 is threaded onto the top of the movable cavity 101. The plug 102 limits the upward movement of the bearing 41, and the pad 103 limits the downward movement of the bearing 41. The furthest distance between the top of the pad 103 and the plug 102 is equal to half the thickness of the strip 10, ensuring that the punch 31 only punches half the thickness of the strip 10 each time. The bottom of the slot of the pad 103 and the plug 102 form a space for the bearing 41 to move. The maximum distance of this space is greater than the thickness of the strip 10, ensuring that the bearing 41 can cooperate with the punch 31 to complete the punching action.
[0040] The feed plate 11 has a feed guide groove 111. The feed strip 10 is conveyed along the guide path of the feed guide groove 111 and can pass directly below the punching component to achieve precise positioning and punching. The feed plate 11 also has a punching notch 112, which is connected to the feed guide groove 111. The position of the punching notch 112 corresponds to the punching position of the punching component, so as to avoid the punching component during punching.
[0041] The mold also includes a drive unit 20, which is connected to the punching assembly and is used to drive the punching assembly to perform reciprocating punching motion in a direction perpendicular to the material transfer plate 11, so as to achieve notch punching of the material strip 10. The drive unit 20 can be a hydraulic drive unit 20 or a pneumatic drive unit 20.
[0042] The implementation principle of this embodiment is as follows: During the punching process, the punch 31 presses down onto the bearing 41 to punch the outer contour of the product, and the cutter head 32 presses down onto the cutter seat 42 to punch the inner contour of the product. When the punch 31 is punching, it contacts the bearing 41. Under the action of the punch 31 and the second spring 422, the bearing 41 moves downward, causing the cutter seat 42 placed inside the bearing 41 to move upward relative to it. After the cutter seat 42 contacts the cutter head 32, it punches the inner and outer contours of the product simultaneously.
[0043] Because the bearing 41 has limiting protrusions 411 on both sides, when the bearing 41 moves downward, the limiting protrusions 411 will contact the pad 103, and under the action of the pad 103, the punch 31 and the cutter 32 will stop moving downward. The thickness of the pad 103 is preset so that the distance the bearing 41 moves downward is exactly half the thickness of the material strip 10 punched by the punch 31 and the cutter 32. This forms a two-step punching method: refer to Figure 7First, a partial shearing process is performed, meaning that punch 31 only cuts half the thickness of the strip 10 each time. This reduces the force exerted by punch 31 during cutting and increases its strength. For the second cut, the backing plate 103 needs to be removed, and punch 31 then completely cuts the strip 10. During the cutting process, the material guide groove 111 and the cutting notch 112 of the transfer plate 11 ensure accurate positioning of the strip 10 and smooth operation of the cutting components. The installation and movement of the backing plate 103 can be done manually or using automated equipment.
[0044] The first spring 322 and the second spring 422 provide reset and lifting functions for the cutter head 32 and the bearing seat 41, respectively. The pad 103 and the stopper 102 precisely limit the range of motion of the bearing seat 41, ensuring the stability and accuracy of the punching process. Compared with traditional punching methods, this design solves the problems of non-mass production caused by the inability to allow material to be carried in the notch of micro-products and the insufficient strength of the punch 31, thereby improving production efficiency and reducing production costs. It is a significant improvement over existing technology.
[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A micro product kiss-cut die, characterized by, Including the punching table (1); The punching table (1) is provided with a transfer plate (11) to restrict the movement direction of the material strip (10); A punching assembly is provided above the material transfer plate (11), and a cutting support assembly is provided below it; The punching assembly includes a punch (31) and a cutter head (32), and the cutting support assembly includes a support (41) and a cutter seat (42); The cutting head (32) is disposed inside the punch (31), and the cutting seat (42) is disposed inside the bearing seat (41). The shapes of the punch (31) and the bearing seat (41) are set according to the shape of the product. The punching table (1) has a movable cavity (101) inside, the cutting seat (42) is connected to the cutting seat (42) rod, and a second spring (422) is sleeved on the cutting seat (42) rod; The top of the second spring (422) abuts against the bearing (41), so that the bearing (41) is movably installed in the movable cavity (101); The bearing (41) has limit protrusions (411) at both ends, and the punching table (1) has pad (103) slots on both sides that communicate with the movable cavity (101). The pad (103) slots are perpendicular to the movable cavity (101). A pad (103) is inserted into the slot of the pad (103), and a plug (102) is threaded onto the top of the movable cavity (101); The plug (102) is used to limit the upward movement height of the bearing (41), and the pad (103) is used to limit the downward movement height of the bearing (41); The furthest distance between the top of the pad (103) and the seal (102) is equal to half the thickness of the strip (10), so that the punch (31) only punches half the thickness of the strip (10) during the first punching. After the pad (103) is removed, the punch (31) punches the strip (10) completely during the second punching.
2. A micro-product notch punch-out die according to claim 1, wherein The bottom of the slot of the pad (103) and the plug (102) form a space for the support (41) to move. The maximum distance of this space is greater than the thickness of the strip (10) to ensure that the support (41) can cooperate with the punch (31) to complete the punching action.
3. The micro-product notch punch die according to claim 1, wherein The material transfer plate (11) has a material transfer guide groove (111) inside. The material strip (10) is conveyed along the guide path of the material transfer guide groove (111) and can pass directly below the punching component to achieve precise positioning punching.
4. A micro-product notch punch-out die according to claim 3, wherein The punching notch (112) on the material transfer plate (11) is connected to the material transfer guide groove (111), and the position of the punching notch (112) corresponds to the punching position of the punching component, so as to avoid the punching component during punching.
5. The micro-product notch punch mold according to claim 1, wherein In its natural state, the second spring (422) generates an upward lifting force on the bearing (41), so that the top of the bearing (41) is higher than the top of the cutting seat (42), so as to form an initial working state before punching.
6. A micro-product notch punch-out die according to claim 5, wherein, A first spring (322) is sleeved on the cutting head (32) rod connected to the cutting head (32). The first spring (322) is used to provide a restoring force after punching, so that the cutting head (32) returns to the initial position.
7. A micro-product notch punch-out die according to claim 6, wherein, The movable cavity (311) opened in the punch (31) is used to accommodate the movement of the cutting head (32) rod. One end of the cutting head (32) rod extends into the movable cavity (311), and the movement stroke of the cutting head (32) rod in the movable cavity (311) is adapted to the elastic deformation of the first spring (322).
8. The micro-product notch punch mold according to claim 1, wherein It also includes a drive device (20), which is connected to the punching assembly and is used to drive the punching assembly to perform reciprocating punching motion in a direction perpendicular to the material transfer plate (11) to achieve notch punching of the strip (10).