Quick-release punch press die

Abstract

This application relates to a quick-release stamping die, comprising a fixed die and a controllable movable die. The movable die is connected to a stamping seat, and a first slot is provided on one side of the stamping seat. A pressure bearing seat is provided on the side of the fixed die, and a second slot is provided on one side of the pressure bearing seat. The punch includes a stamping part and a first insertion part inserted into the first slot, and the die includes a cavity and a second insertion part inserted into the second slot. This quick-release stamping die achieves detachable connection between the punch and the stamping seat, and between the die and the pressure bearing seat through the above structure, avoiding the operation of disassembling the entire die. It solves the problems of cumbersome replacement, low efficiency, and inaccurate positioning, and realizes rapid disassembly and assembly and precise positioning of die components, significantly improving the flexibility and efficiency of stamping operations.

Description

Technical Field

[0001] This utility model relates to stamping dies, and more particularly to a quick-release stamping die. Background Technology

[0002] Stamping dies are indispensable process equipment in sheet metal processing and parts forming manufacturing, and are widely used in many industrial fields such as automobile manufacturing, home appliance production, and electronic equipment. In actual production, in order to meet the processing requirements of different product shapes and sizes, the punches and dies in stamping dies often need to be replaced or maintained regularly according to the process arrangement to adapt to the needs of different batches or types of stamped parts.

[0003] In existing technology, the punch and die of a stamping die are usually fixedly connected and mounted on the stamping base and the pressure base. Specifically, the punch and die are generally installed with the die base by means of bolt fastening, welding, or fitting and limiting. When it is necessary to replace the punch or die, it is often necessary to remove the entire stamping die from the machine, or at least partially disassemble the main structure of the die, before the replacement operation can be completed.

[0004] However, due to the large size and complex structure of the mold body, the disassembly and assembly process is not only time-consuming and labor-intensive, but also easily leads to a decrease in positioning accuracy, which in turn affects the dimensional consistency and mold surface matching accuracy of subsequent product processing. Therefore, there is an urgent need to propose a quick-release stamping die to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a quick-release stamping die that allows the punch and die to be independently and quickly inserted or removed through a detachable connection, thereby shortening the replacement time, improving production efficiency, and reducing the repetitive assembly and debugging work of the die body.

[0006] The technical solution adopted by this utility model to solve the above problems is: a quick-release stamping die, comprising:

[0007] Fixed mold;

[0008] A moving mold, which is controlled to move toward or away from the fixed mold;

[0009] A stamping base is connected to the moving die, and a first slot is provided on one side of the stamping base;

[0010] A pressure-bearing seat is disposed on the side of the fixed mold close to the moving mold, and a second slot is provided on one side of the pressure-bearing seat;

[0011] The punch includes a stamping part and a first insertion part, the first insertion part being inserted into the first slot, so that the punch is detachably connected to the stamping base, and the stamping part is configured to face the fixed mold when the punch is connected to the stamping base;

[0012] The die includes a cavity and a second insertion part, the second insertion part being inserted into a second slot, so that the die is detachably connected to the stamping seat, and the cavity is configured to face the moving die when the die is connected to the pressure seat.

[0013] Preferably, both the first slot and the second slot are dovetail grooves, and the extension direction of the dovetail groove is perpendicular to the moving direction of the moving mold.

[0014] Both the first and second insertion parts are dovetail blocks, and the extension direction of the dovetail block is parallel to the extension direction of the dovetail groove.

[0015] Preferably, the mold includes:

[0016] A fixed mold base includes a first mounting surface, which is disposed close to the moving mold.

[0017] A first liner plate is disposed at the first mounting surface and is connected to the pressure bearing seat;

[0018] A fixed template is provided on the side of the first liner plate near the moving mold, and the side of the fixed template near the moving mold has a first through groove for accommodating the pressure seat, and part of the concave mold is located in the first through groove.

[0019] The moving model includes:

[0020] The moving mold base includes a second mounting surface, which is disposed close to the fixed mold.

[0021] A second liner is disposed on the second mounting surface and is connected to the stamping seat;

[0022] A movable template is connected to the second liner, and a second through groove for accommodating the stamping seat is provided on the side of the movable template near the fixed mold, and part of the punch is located in the second through groove.

[0023] Preferably, both the stamping seat and the bearing seat are provided with a positioning mechanism. The positioning mechanism is configured to restrict relative movement between the punch and the stamping seat and relative movement between the die and the bearing seat when the punch and the die are respectively connected to the stamping seat and the bearing seat.

[0024] Preferably, positioning holes are provided on both the side of the punch away from the fixed mold and the side of the die away from the moving mold.

[0025] The positioning mechanism includes:

[0026] A positioning pin, with controlled movement, is configured to be inserted into the positioning hole after the dovetail block is inserted into the dovetail groove.

[0027] Preferably, the positioning mechanism further includes:

[0028] The first abutment is fixedly connected to the positioning pin, and the first abutment includes a first inclined surface;

[0029] The second abutment, with controlled movement, includes a second ramp;

[0030] An elastic element, connected to the locating pin, applies a spring force to the locating pin away from the locating hole.

[0031] When one end of the positioning pin is inserted into the positioning hole, the second abutment moves to the target position, so that the second inclined surface abuts against the first inclined surface, and one end of the positioning pin is inserted into the positioning hole to restrict the movement of the dovetail block in the dovetail groove.

[0032] Preferably, the positioning hole is a conical hole, and the end of the positioning pin that is inserted into the positioning hole is constructed as a cone body adapted to the conical hole.

[0033] Preferably, both the pressure bearing seat and the pressure bearing seat are provided with a first positioning hole and a second positioning hole, the extension direction of the first positioning hole is perpendicular to the extension direction of the second positioning hole, the positioning pin is disposed in the first positioning hole, and the second abutment member is disposed in the second positioning hole.

[0034] The positioning mechanism further includes an adjusting member, which is threadedly connected to the second positioning hole, and the second positioning hole is rotatably connected to the second abutment member.

[0035] Beneficial effects of the embodiments of this utility model

[0036] 1. Because this application employs a technique that uses a first slot and a second slot to allow the punch and stamping base, and the die and bearing base to be detachably connected via a plug-in connection, it effectively solves the technical problem in the prior art where replacing the punch and die requires disassembling the entire mold or performing complex structural disassembly, resulting in time-consuming operations, low efficiency, and reduced positioning accuracy. This achieves the technical effects of rapid disassembly and assembly, convenient replacement, and precise structural positioning of the punch and die in stamping dies. This solution helps improve mold replacement efficiency, reduce manual operation burden, ensure the quality of die surface fit, and significantly enhance the flexibility and reliability of stamping production.

[0037] 2. By employing positioning mechanisms in the stamping base and bearing base respectively, and limiting the relative movement of the punch and stamping base, and the die and bearing base through the insertion and engagement of positioning holes and positioning pins, the technology effectively solves the problem in the prior art where the punch or die may deviate due to the lack of effective limiting when using a quick-release connection structure, thus affecting the stamping accuracy and die surface matching. This achieves the technical effect of ensuring the fitting accuracy and processing consistency of the stamping die while realizing the convenience of quick-release connection.

[0038] 3. By using a first abutting member with a first inclined surface and a second inclined surface to cooperate with the second abutting member to control the insertion state of the positioning pin, and supplemented by the combined effects of elastic force application and fine adjustment, the structural problems of poor insertion, failure to dislodge, or complex operation in traditional pin positioning mechanisms are effectively solved. Thus, the positioning mechanism achieves the technical effects of fast action response, stable and reliable structure, high positioning accuracy, and easy adjustment and maintenance.

[0039] 4. Due to the structural design of the tapered positioning hole and the matching cone positioning pin, the problem of large positioning gap and poor positioning repeatability in the existing straight-insertion pin structure is effectively solved, thereby achieving a high-precision positioning effect with higher coaxiality and tighter fit, thus ensuring the consistency and stability of the stamping parts installation. Attached Figure Description

[0040] Figure 1 This is a schematic front sectional view of a quick-release stamping die proposed in one embodiment of this utility model.

[0041] Figure 2 This is a schematic diagram showing the state when the punch and stamping seat, and the die and bearing seat are all connected, according to one embodiment of this utility model.

[0042] Figure 3 This is a schematic structural diagram of the stamping seat connected to the punch through a positioning mechanism in one embodiment of the present invention.

[0043] Figure 4 yes Figure 3A schematic magnified view of point A in the middle.

[0044] Wherein: 10, fixed mold; 110, fixed mold base; 111, first mounting surface; 120, first liner; 130, fixed template; 20, moving mold; 210, moving mold base; 211, second mounting surface; 220, second liner; 230, moving template; 30, stamping base; 310, first slot; 40, pressure bearing base; 410, second slot; 50, punch; 510, stamping part; 520, first insertion part; 60, die cavity; 610, mold cavity; 620, second insertion part; 70, positioning mechanism; 710, positioning pin; 720, first abutment; 721, first inclined surface; 730, second abutment; 731, second inclined surface; 740, elastic element; 750, adjusting element; 80, first positioning hole; 90, second positioning hole. Detailed Implementation

[0045] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application.

[0046] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0047] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0048] Please see Figures 1 to 2A preferred embodiment of this application provides a quick-release stamping die, suitable for high-frequency die replacement scenarios such as sheet metal processing and stamping part forming, especially suitable for automated production lines of small to medium batch multi-specification parts, to improve die replacement efficiency and stamping accuracy. The quick-release stamping die includes a fixed die 10, a moving die 20, a stamping seat 30, a pressure seat 40, a punch 50, and a die 60. The moving die 20 is controlled to move towards or away from the fixed die 10. The stamping seat 30 is connected to the moving die 20, and a first slot 310 is provided on one side of the stamping seat 30. The pressure seat 40 is disposed on the side of the fixed die 10 near the moving die 20, and a second slot 410 is provided on one side of the pressure seat 40. The punch 50 includes a stamping portion 510 and a first insertion portion 520. The punch 50 is inserted into the first slot 310, making the punch 50 detachably connected to the stamping base 30. The punching part 510 is configured to face the fixed mold 10 when the punch 50 is connected to the stamping base 30. The die 60 includes a mold cavity 610 and a second insertion part 620. The second insertion part 620 is inserted into the second slot 410, making the die 60 detachably connected to the stamping base 30. The mold cavity 610 is configured to face the moving mold 20 when the die 60 is connected to the pressure seat 40.

[0049] Specifically:

[0050] The fixed die 10 is a structural component fixedly mounted on the stamping press frame, bearing the reaction force of the entire die system and serving as the supporting component for the die 60. The moving die 20 is positioned directly opposite the fixed die 10, and its movement is controlled by a cylinder, hydraulic cylinder, or servo drive mechanism, allowing it to move closer to or away from the fixed die 10 to achieve the stamping cycle. The stamping seat 30 is connected and fixed to the moving die 20, bearing the function of loading the punch 50. The pressure bearing seat 40 is located on the side of the fixed die 10 facing the moving die 20, fixedly aligned with the die 60, and used to resist the pressure applied by the punch 50 during stamping.

[0051] To achieve quick-release functionality, a first slot 310 is provided on one side of the stamping base 30 to accommodate the first insertion portion 520 of the punch 50. The slot is rectangular or dovetail-shaped, and its depth precisely matches the insertion portion. After insertion, the punch 50 and the stamping base 30 are securely connected yet easy to disassemble. The punch 50 includes a stamping portion 510 and a first insertion portion 520. The stamping portion 510 is located at one end of the punch 50 and is configured to face the fixed mold 10 after the punch 50 is inserted into place, meaning it directly acts on the material to be processed during the stamping process. The first insertion portion 520, through its shape, tightly fits the first slot 310, achieving positioning and limiting of the punch 50. During disassembly, it can be quickly replaced by being pulled out by the operator.

[0052] Similarly, a second slot 410 is provided on one side of the pressure seat 40 for inserting the second insertion part 620 of the die 60. The die 60 includes a cavity 610 structure that forms the product outline and an integrally formed second insertion part 620. After the second insertion part 620 is inserted into the second slot 410, the die 60 is positioned facing the moving mold 20 and aligned vertically with the punch 50. The insertion structure design ensures that when the die 60 is replaced, it is not necessary to remove the pressure seat 40 or the fixed mold 10; only the die 60 body needs to be disassembled and assembled.

[0053] During operation, when it is necessary to replace the punch 50 and die 60, the operator can complete the replacement by horizontally pulling out the punch 50 and die 60 without disassembling the moving die 20 and the fixed die 10, and then inserting the new punch 50 and die 60, achieving quick installation and precise positioning. The entire replacement process can be completed within tens of seconds, significantly reducing equipment downtime.

[0054] The structure is highly adaptable, and slots of different sizes or shapes can be designed to fit the punch 50 and die 60. The surface of the slot can be provided with a limiting shoulder or a locking groove to cooperate with the positioning mechanism 70 to prevent relative slippage during use.

[0055] In this embodiment, by using a technique of setting a first slot 310 and a second slot 410 on the stamping base 30 and the bearing base 40 respectively, and inserting the punch 50 and the die 60 into them through the first insertion part 520 and the second insertion part 620 respectively to achieve a detachable connection, the problem of the prior art requiring the overall disassembly of the mold, complex operation, and low positioning accuracy when replacing the punch 50 and the die 60 is effectively solved. Thus, the technical effects of rapid replacement of stamping mold, accurate structural positioning, and significantly improved processing efficiency are achieved.

[0056] Please see Figure 2 To further improve the fitting accuracy and connection stability of the punch 50 and the die 60 during the insertion process, in some embodiments, the first slot 310 and the second slot 410 are both dovetail grooves, and the extension direction of the dovetail grooves is perpendicular to the moving direction of the moving die 20; the first insertion part 520 and the second insertion part 620 are both dovetail blocks, and the extension direction of the dovetail blocks is parallel to the extension direction of the dovetail grooves.

[0057] Specifically:

[0058] The dovetail groove is an embedded sliding groove structure with an inverted trapezoidal cross-section. It has a narrow opening and a wide bottom, providing excellent self-positioning and limiting capabilities. The extension direction of the dovetail groove is set to be perpendicular to the moving direction of the moving mold 20, that is, it is opened along the transverse direction of the mold. This ensures that the slot structure is not interfered with during the vertical stamping movement of the moving mold 20, and maximizes the stability of the insertion.

[0059] In conjunction with the aforementioned slots, the first insertion portion 520 of the punch 50 and the second insertion portion 620 of the die 60 are both configured as dovetail block structures. The shape and size of the dovetail block precisely match the corresponding dovetail groove, and its extension direction is consistent with the dovetail groove, also arranged laterally. During assembly, the dovetail block of the punch 50 can slide horizontally into the dovetail groove of the stamping seat 30 to complete the insertion and positioning; the dovetail block of the die 60 is also installed in the dovetail groove of the bearing seat 40 by sliding in. After insertion, the shape characteristics of the dovetail structure can effectively prevent the insertion part from sliding or dislodging in the vertical direction during the stamping process.

[0060] Compared to conventional rectangular slots or cylindrical pins, the above structure offers superior pull-out resistance and shear strength, and achieves stable fixation without the need for additional fasteners. Furthermore, the dovetail structure provides a guiding self-locking effect during insertion and removal, allowing the operator to replace components simply by sliding the component in or out in a single direction, effectively simplifying the operation process and improving work efficiency.

[0061] During operation, when the moving die 20 drives the stamping seat 30 downward, the punch 50 is firmly embedded in the stamping seat 30 by its dovetail block, preventing loosening or misalignment under high-frequency impact loading. Similarly, the die 60 is stably positioned on the pressure seat 40 by the dovetail block, ensuring that its cavity 610 and the stamping part 510 of the punch 50 always maintain coaxial fit, thus guaranteeing the accuracy of the formed product.

[0062] This structure is suitable for automated stamping systems requiring frequent die changes and high positioning accuracy, and is particularly adaptable to conditions involving vertical impact and high-speed motion. The installation environment can be a standard die frame structure; the dovetail structure does not alter the original die connection logic, providing good versatility and adaptability.

[0063] In this embodiment, by designing both the first slot 310 and the second slot 410 as dovetail groove structures and designing the first insertion part 520 and the second insertion part 620 as dovetail blocks that cooperate with them, the problem of insufficient positioning accuracy and easy loosening or dislocation during use in the insertion connection method in the prior art is effectively solved. This achieves stable fixation and high-precision detachable positioning of the punch 50 and the die 60 under high-intensity stamping operations, improving the replacement efficiency and structural reliability of the mold components.

[0064] Please see Figure 1To further improve the stability of the mold structure and the modularity of component assembly, in some embodiments, the fixed mold 10 includes a fixed mold base 110, a first liner 120, and a fixed template 130. The fixed mold base 110 includes a first mounting surface 111, which is disposed near the moving mold 20. The first liner 120 is disposed at the first mounting surface 111 and is connected to the pressure seat 40. The fixed template 130 is disposed on the side of the first liner 120 near the moving mold 20, and the side of the fixed template 130 near the moving mold 20 has a first through groove for accommodating the pressure seat 40. A portion of the die 60 is located within the first through groove. The moving mold 20 includes a moving mold base 210, a second liner 220, and a moving template 230. The moving mold base 210 includes a second mounting surface 211, which is disposed near the fixed mold 10. The second liner 220 is disposed on the second mounting surface 211 and is connected to the stamping seat 30. The moving template 230 is connected to the second liner 220, and a second through groove for accommodating the stamping seat 30 is provided on the side of the moving template 230 near the fixed mold 10. A portion of the punch 50 is located within the second through groove.

[0065] Specifically:

[0066] The fixed mold base 110 serves as the base structure of the fixed mold 10. Its body is made of high-strength alloy steel and is used to withstand the reverse load generated during the stamping process, and to connect with the overall frame as a pressure-bearing component. The fixed mold base 110 has a first mounting surface 111 on the side facing the moving mold 20. This mounting surface is a precision-machined plane, which is used to provide a stable assembly reference for subsequent components.

[0067] The first liner 120 is disposed on the first mounting surface 111, and its material can be impact-resistant and wear-resistant steel to improve the durability of key connection parts of the mold. The first liner 120 is fixedly connected to the pressure seat 40, and the installation method can be threaded fastening or dovetail guide rail sliding positioning, so that the pressure seat 40 can be reliably installed on the first liner 120 to form an assembly platform for supporting the die 60.

[0068] The fixed template 130 defines the overall front-end machining profile of the mold 10. A first through groove is provided on the side near the moving mold 20, and the opening direction of this first through groove is generally parallel to the mold opening and closing direction. The size of the first through groove is adapted to the bearing seat 40, allowing the bearing seat 40 to be embedded inside the fixed template 130. This structure allows a portion of the die 60 to extend into the fixed template 130, thereby achieving structural integrity of the mold cavity 610 and optimized arrangement of the clamping surface. This helps maintain the consistency of the mold surface and the edge forming quality of the product during operation.

[0069] Accordingly, the moving die 20 includes a moving die base 210, a second liner plate 220, and a moving die plate 230. The moving die base 210 serves as the carrier structure for the moving die 20, and a second mounting surface 211 is formed on its side near the fixed die 10. The second mounting surface 211 is also a machined plane used to assemble the second liner plate 220. The second liner plate 220 is disposed at the second mounting surface 211 and is used to connect with the stamping base 30, supporting the punch 50 structure. The second liner plate 220 can be connected to the stamping base 30 via bolts or dovetail grooves, and provides reinforced support in the stress area.

[0070] The moving template 230 is disposed on the side of the second liner 220 facing the fixed mold 10, and its surface is machined with a second through groove. This second through groove is used to accommodate part of the structure of the stamping base 30, so that the punch 50 can partially enter the cavity 610 of the die 60 in an embedded form, thereby forming a complete stamping space with the die 60 when the mold is closed. This structure can reduce the dimensional interference of moving parts on the stamping path while maintaining the rigidity of the punch 50, and improve the smoothness of mold opening and closing and stamping efficiency.

[0071] The structural design of the fixed mold 10 and the moving mold 20 allows the core stamping parts 510 (punch 50 and die 60) to be embedded inside the template. At the same time, the liner structure creates a clear installation partition between the mold and the base, facilitating subsequent mold maintenance, replacement, or modular disassembly. Furthermore, the through-slot provides sufficient space for quick-release components, ensuring that the template outline is not interfered with during disassembly.

[0072] This mold structure is suitable for automated stamping equipment requiring high-frequency opening and closing and high-precision forming. It is suitable for use in medium to large-sized stamping workshops where the temperature is within the normal industrial range and there is no strong corrosive gas or dust pollution. The mold is compatible with various host machines such as servo presses, mechanical presses, and pneumatic-hydraulic linkage equipment.

[0073] In this embodiment, the fixed mold 10 and the moving mold 20 are respectively composed of a base, a liner, and a template. Furthermore, a through groove is provided in the template to accommodate the bearing seat 40 and the stamping seat 30. Therefore, the problems of unclear mold structure assembly, limited stamping component position, and complex mold disassembly and assembly process in the prior art are effectively solved. This achieves the technical effect of clear mold structure partitioning, high modularity, sufficient quick disassembly space, and strong overall assembly stability, significantly improving the reliability of mold use and the convenience of maintenance.

[0074] Please see Figures 1 to 3To further improve the connection stability and precise repeatability of quick-release stamping dies during high-frequency operation, in some embodiments, both the stamping base 30 and the pressure bearing base 40 are provided with positioning mechanisms 70. The positioning mechanisms 70 are configured to restrict relative movement between the punch 50 and the stamping base 30, and between the die 60 and the pressure bearing base 40, when the punch 50 and the die 60 are respectively connected to the stamping base 30 and the pressure bearing base 40. Positioning holes are provided on the side of the punch 50 away from the fixed die 10 and on the side of the die 60 away from the moving die 20. The positioning mechanism 70 includes a positioning pin 710, a first abutment 720, a second abutment 730, an elastic element 740, and an adjusting element 750. The positioning pin 710 is moved in a controlled manner and is configured to be inserted into the positioning hole after the dovetail block is inserted into the dovetail groove. A first abutment 720 is fixedly connected to the positioning pin 710 and includes a first inclined surface 721. A second abutment 730 is moved in a controlled manner and includes a second inclined surface 731. An elastic member 740 is connected to the positioning pin 710 to apply an elastic force away from the positioning hole to the positioning pin 710. When one end of the positioning pin 710 is inserted into the positioning hole, the second abutment 730 moves to a target position, so that the second inclined surface 731 abuts against the first inclined surface 721, causing one end of the positioning pin 710 to be inserted into the positioning hole, thereby restricting the movement of the dovetail block in the dovetail groove. Both the pressure bearing seat 40 and the pressure bearing seat 40 are provided with a first positioning hole 80 and a second positioning hole 90. The extension direction of the first positioning hole 80 is perpendicular to the extension direction of the second positioning hole 90. The positioning pin 710 is disposed in the first positioning hole 80, the second abutment 730 is disposed in the second positioning hole 90, and the adjusting member 750 is disposed in the second positioning hole 90 by means of a threaded connection. The second positioning hole 90 and the second abutment 730 are rotatably connected.

[0075] Specifically:

[0076] After the punch 50 and the die 60 are inserted, the positioning mechanism 70 can limit its sliding or offset relative to the die base, ensuring that the die assembly maintains a stable fit during the stamping process.

[0077] The punch 50 has a positioning hole on the side away from the fixed die 10. This positioning hole is preferably located at the outer end of the first insertion portion 520 or its adjacent location, for cooperation with the positioning structure on the stamping base 30. Similarly, the die 60 also has a corresponding positioning hole on the side away from the moving die 20, for limiting and constraining with the positioning structure on the pressure bearing base 40. The axial direction of the positioning hole is parallel to the insertion direction.

[0078] The positioning mechanism 70 includes a positioning pin 710, a first abutment 720, a second abutment 730, an elastic element 740, and an adjusting element 750. The positioning pin 710 is disposed within the stamping seat 30 and the bearing seat 40, with its axial extension direction parallel to the slot. After the dovetail block of the punch 50 or the die 60 is fully inserted into the dovetail slot, the positioning pin 710 can be radially inserted into the positioning hole of the punch 50 or the die 60 in a controlled manner to achieve mechanical limiting. The positioning pin 710 can be controlled by a cylinder, an electromagnetic actuator, or a manual mechanism to ensure its action response is fast and reliable.

[0079] To ensure the locating pin 710 remains securely in the inserted state, one end is connected to a first abutment 720, which has a first inclined surface 721. A second abutment 730 is connected to the drive or adjustment mechanism of the mold base and can move in a controlled manner perpendicular to the locating pin 710. The second abutment 730 has a second inclined surface 731. When it moves to the target position, the second inclined surface 731 and the first inclined surface 721 form a wedge-shaped engagement, thereby pushing or locking the locating pin 710 into the locating hole to form a locking structure, preventing it from loosening or retracting during operation.

[0080] The locating pin 710 is connected to the elastic element 740, which can be a compression spring or a disc spring structure, to apply a constant rebound force to the locating pin 710, ensuring that the locating pin 710 can naturally exit the locating hole when no locking force is applied, avoiding disassembly difficulties. Furthermore, a first locating hole 80 and a second locating hole 90 are respectively provided in the pressure seat 40 and the stamping seat 30, arranged perpendicularly. The first locating hole 80 is used to accommodate the locating pin 710, and the second locating hole 90 is used to accommodate the second abutment 730.

[0081] The adjusting member 750 is disposed in the second positioning hole 90 and is connected to it by a thread. The relative position between it and the second abutment member 730 can be adjusted by rotation, thereby realizing the displacement adjustment of the second abutment member 730 and the control of the inclined surface pressing degree, and improving the adjustability and adaptability of the locking mechanism.

[0082] With the positioning mechanism 70, the punch 50 and the die 60 can be precisely positioned and fixed after being inserted into the stamping base 30 and the bearing base 40, ensuring that the positioning reference remains consistent after each mold component is replaced, thereby improving the consistency of repeated mold assembly and the stability of the dimensions of the formed product.

[0083] This structure is suitable for industrial applications that require high mold positioning accuracy and impact stability in scenarios involving rapid change of multiple mold specifications. It is especially suitable for high-speed stamping, precision forming and other applications, and has good environmental adaptability and structural versatility.

[0084] In this embodiment, by employing a positioning mechanism 70 in the stamping seat 30 and the bearing seat 40, and limiting the positioning by inserting a positioning pin 710 into the positioning holes of the punch 50 and the die 60, and by cooperating with the inclined contact structure between the first abutment member 720 and the second abutment member 730, the reset of the elastic member 740, and the fine-tuning control of the adjusting member 750, the problem of loosening or positioning error and low reinstallation accuracy of the mold assembly in the quick-release structure in the prior art is effectively solved. Thus, the technical effect of ensuring high-precision positioning of the mold assembly and stable and reliable stamping process is achieved while ensuring the quick-release efficiency of the mold.

[0085] Please see Figure 4 To further improve the positioning accuracy and consistency of repeated assembly of the punch 50 and die 60 in the quick-release stamping die during the installation process, in some embodiments, the positioning hole is a tapered hole, and the end of the positioning pin 710 that is inserted into the positioning hole is constructed as a cone body adapted to the tapered hole.

[0086] The wall of the tapered hole gradually narrows inward from the opening, forming an inner tapered structure. Its central axis is set parallel to the insertion direction, which facilitates the insertion of the positioning pin 710 from the outside and achieves self-guiding engagement.

[0087] To ensure a tight fit with the aforementioned tapered hole structure, the end of the positioning pin 710 that inserts into the tapered hole is designed as a cone shape. This cone-shaped end has a taper consistent with the tapered hole, allowing for surface contact with the inner wall of the tapered hole throughout its circumference during insertion. This insertion method not only improves the guiding accuracy of the positioning pin 710 during insertion but also enhances its shear resistance and vibration stability by increasing the contact area.

[0088] After the punch 50 and die 60 are inserted into the stamping seat 30 and the bearing seat 40 via the dovetail block structure, the locating pin 710 can automatically slide into the cone at one end under the action of the drive component and be inserted into the conical locating hole. Due to the natural guiding characteristics of the conical structure, even if there is a slight deviation during the insertion process, the punch 50 or die 60 can be guided to the accurate position by the self-adjustment of the cone and the hole wall, so as to maintain a stable and consistent alignment accuracy after multiple assemblies.

[0089] The tapered positioning hole of this structure is preferably located at the outer end or adjacent area of ​​the insertion part of the punch 50 or the die 60, featuring a simple structure, convenient processing, and high precision. Its axial length matches the cone insertion part, enabling rigid positioning after insertion without the need for additional locking components. The positioning pin 710 can be made of hardened alloy tool steel to ensure its wear resistance during long-term high-frequency insertion and extraction.

[0090] In this embodiment, by designing the positioning hole as a conical hole and constructing the insertion end of the positioning pin 710 as a matching conical structure, the technical problems of inaccurate insertion of the positioning pin 710, large alignment error after mold assembly, and poor positioning repeatability in the prior art are effectively solved. This achieves the technical effects of automatic guidance, high-precision positioning, and repeatability consistency of the punch 50 and the die 60 during quick disassembly and installation, significantly improving the efficiency of mold component replacement and the stability of stamping quality.

[0091] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A quick-release stamping die, characterized in that, include: Fixed mold; A moving mold, which is controlled to move toward or away from the fixed mold; A stamping base is connected to the moving die, and a first slot is provided on one side of the stamping base; A pressure-bearing seat is disposed on the side of the fixed mold close to the moving mold, and a second slot is provided on one side of the pressure-bearing seat; The punch includes a stamping part and a first insertion part, the first insertion part being inserted into the first slot, so that the punch is detachably connected to the stamping base, and the stamping part is configured to face the fixed mold when the punch is connected to the stamping base; The die includes a cavity and a second insertion part, the second insertion part being inserted into a second slot, so that the die is detachably connected to the stamping seat, and the cavity is configured to face the moving die when the die is connected to the pressure seat.

2. The quick-release stamping die according to claim 1, characterized in that: Both the first slot and the second slot are dovetail grooves, and the extension direction of the dovetail groove is perpendicular to the moving direction of the moving mold; Both the first and second insertion parts are dovetail blocks, and the extension direction of the dovetail block is parallel to the extension direction of the dovetail groove.

3. The quick-release stamping die according to claim 1, characterized in that: The fixed mold includes: A fixed mold base includes a first mounting surface, which is disposed close to the moving mold. A first liner plate is disposed at the first mounting surface and is connected to the pressure bearing seat; A fixed template is disposed on the side of the first liner plate near the moving mold, and the side of the fixed template near the moving mold has a first through groove for accommodating the pressure seat, with a portion of the die cavity located within the first through groove; the moving mold includes: The moving mold base includes a second mounting surface, which is disposed close to the fixed mold. A second liner is disposed at the second mounting surface and is connected to the stamping seat; A movable template is connected to the second liner, and a second through groove for accommodating the stamping seat is provided on the side of the movable template near the fixed mold, and part of the punch is located in the second through groove.

4. A quick-release stamping die according to claim 2, characterized in that, Both the stamping base and the bearing base are provided with positioning mechanisms. The positioning mechanisms are configured to restrict relative movement between the punch and the stamping base and relative movement between the die and the bearing base when the punch and the die are respectively connected to the stamping base and the bearing base.

5. A quick-release stamping die according to claim 4, characterized in that: Positioning holes are provided on the side of the punch away from the fixed mold and on the side of the die away from the moving mold. The positioning mechanism includes: A positioning pin, with controlled movement, is configured to be inserted into the positioning hole after the dovetail block is inserted into the dovetail groove.

6. A quick-release stamping die according to claim 5, characterized in that, The positioning mechanism also includes: The first abutment is fixedly connected to the positioning pin, and the first abutment includes a first inclined surface; The second abutment, with controlled movement, includes a second ramp; An elastic element, connected to the locating pin, applies a spring force to the locating pin away from the locating hole; When one end of the positioning pin is inserted into the positioning hole, the second abutment moves to the target position, so that the second inclined surface abuts against the first inclined surface, and one end of the positioning pin is inserted into the positioning hole to restrict the movement of the dovetail block in the dovetail groove.

7. A quick-release stamping die according to claim 5 or 6, characterized in that, The positioning hole is a conical hole, and the end of the positioning pin that is inserted into the positioning hole is constructed as a cone body adapted to the conical hole.

8. A quick-release stamping die according to claim 6, characterized in that: Both the pressure bearing seat and the pressure bearing seat are provided with a first positioning hole and a second positioning hole. The extension direction of the first positioning hole is perpendicular to the extension direction of the second positioning hole. The positioning pin is disposed in the first positioning hole, and the second abutment is disposed in the second positioning hole. The positioning mechanism further includes an adjusting member, which is threadedly connected to the second positioning hole, and the second positioning hole is rotatably connected to the second abutment member.

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