Die changing structure and stamping die

Abstract

The application provides a die changing structure and a stamping die. The die changing structure comprises a mounting plate, a driving assembly, a first sliding assembly, a second sliding assembly and a punching assembly. The first sliding assembly is driven by the driving assembly to reciprocate along a first preset direction and has a pushing position and a retracted position. The second sliding assembly is in transmission cooperation with the first sliding assembly and can reciprocate along a second preset direction. The punching assembly is detachably arranged on the second sliding assembly and can move together with the second sliding assembly. The structure accurately converts the pushing movement along the first preset direction into the pressing or lifting movement along the second preset direction, realizes the switching between the working state and the non-working state of the punching assembly and improves the adaptability of the die to different hole position requirements. The design that the punching assembly is detachably arranged on the second sliding assembly makes it unnecessary to disassemble the whole changing mechanism when the punch needle is worn out, and only the punch needle assembly needs to be replaced to restore production, thereby reducing the maintenance time cost.

Description

Technical Field

[0001] This application relates to the field of stamping dies, and in particular to a die changing structure and a stamping die. Background Technology

[0002] In the actual production process of stamping dies, different product models often require different punching layouts or blanking processes. In traditional die design, each product usually needs to be equipped with an independent punching module, resulting in a large number of dies, long die changeover time, and large storage space occupation. Moreover, frequent disassembly and assembly of punch components can easily cause positioning errors and structural wear, affecting processing accuracy and production efficiency. Especially in small-batch, multi-variety manufacturing scenarios, existing dies cannot achieve rapid switching of functional modules, which restricts the response speed and automation level of the production line. In addition, when switching models, existing dies must first be disassembled, moved to a designated location, and then disassembled again for die changeover, which is a cumbersome process. Utility Model Content

[0003] Therefore, it is necessary to provide a mold changing structure and stamping die to address the above problems, so as to realize the automatic switching, precise positioning and stable operation of the punching function module inside the mold, and shorten the changeover cycle.

[0004] This utility model first provides a mold changing structure for stamping dies, comprising:

[0005] Mounting plate;

[0006] The driving component is mounted on the mounting plate;

[0007] A first sliding component is disposed on the mounting plate. The first sliding component can be driven by the driving component to reciprocate along a first preset direction and has an extended position and a retracted position.

[0008] A second sliding component is disposed on the mounting plate. The second sliding component is in transmission cooperation with the first sliding component and can reciprocate along a second preset direction as the first sliding component reciprocates along the first preset direction. The second preset direction and the first preset direction form an angle with each other. A punching component is detachably disposed on the second sliding component and can move together with the second sliding component. In the extended position, the punching component is in a working state, and in the retracted position, the punching component is in a non-working state.

[0009] In this configuration, the drive component serves as the power unit, while the first sliding component acts as the power transmission carrier, completely transferring the power output from the drive component to the second sliding component. This avoids energy loss and response delay caused by power dispersion or excessively long transmission paths. The first and second sliding components are coupled in a preset direction with an included angle. This angled structure precisely converts the pushing motion in the first preset direction into the pressing or lifting motion in the second preset direction, enabling the functional switching between the working and non-working states of the punching component. This improves the adaptability of the same mold to different hole position requirements, and eliminates the need for manual operation inside the mold during the changeover process. The design of the punching component being detachably mounted on the second sliding component means that after the punch wears out, the entire changeover mechanism does not need to be disassembled; only the punch component needs to be replaced to restore production, reducing maintenance time and costs. Furthermore, the power output from the drive component is stable and controllable, avoiding component jamming or incomplete movements caused by uneven force during manual operation, ensuring the reliability and repeatability of the changeover action. The mounting plate provides a unified assembly reference surface for all components, ensuring the relative positional accuracy between moving parts, avoiding the loss of reference due to frequent disassembly and assembly, enabling in-situ online mold changeover, eliminating the need to remove the mold and transport it to the designated mold removal area, thus improving changeover efficiency and production flexibility.

[0010] In one embodiment, the second sliding assembly includes a first cover plate, and the perforated assembly is detachably disposed at one end of the first cover plate opposite to the first sliding assembly.

[0011] With this configuration, the first cover plate serves as the external support platform for the second sliding assembly, with its end away from the first sliding assembly facing the mold working area, facilitating the direct installation of the punching assembly. The punching assembly can be fixed to the first cover plate by screws, locating pins, or other quick-release structures. During disassembly, the entire punching unit can be removed simply by loosening the fasteners, enabling rapid replacement.

[0012] In one embodiment, the first sliding component has a first guide surface at one end facing the first cover plate, and the first cover plate has a second guide surface at one end facing the first sliding component. The first guide surface can slide and cooperate with the second guide surface to push the second sliding component from the retracted position to the extended position.

[0013] With this configuration, when the first sliding component moves along the first preset direction, the contact between the two guide surfaces generates a component force along the second preset direction, which transmits the power of the first sliding component to the second sliding component, thereby realizing the change of movement direction. The sliding contact area is large, the force transmission is uniform, avoiding wear of the guide surface caused by excessive local force, and ensuring that the second sliding component moves smoothly.

[0014] In one embodiment, the first sliding component has a first limiting surface at one end facing the first cover plate, and the first cover plate has a second limiting surface at one end facing the first sliding component. In the retracted position, the first limiting surface abuts against the second limiting surface to prevent the first sliding component and the second sliding component from disengaging from the retracted position.

[0015] With this configuration, when the first sliding component drives the second sliding component to the retracted position, the contact between the two limiting surfaces directly restricts the further movement of the sliding component, preventing excessive displacement of the sliding component due to excessive driving force or motion inertia, and preventing structural damage.

[0016] In one embodiment, the second sliding assembly further includes a second cover plate and a support member, the second cover plate being located at one end of the first sliding assembly opposite to the first cover plate, and the two ends of the support member being connected to the first cover plate and the second cover plate, respectively.

[0017] With this configuration, the first sliding component is clamped between the two cover plates, and its movement is constrained in both directions, avoiding overturning or uneven wear caused by unilateral force. The two support members, together with the first and second cover plates, form a closed rigid frame, which improves the overall structural strength and torsional resistance of the second sliding component. The support members are located on both sides of the first sliding component, which can play a lateral limiting role in the movement of the first sliding component, preventing the first sliding component from shifting to the left or right during movement, and ensuring the matching accuracy of the first guide surface and the first reset surface.

[0018] In one embodiment, the first sliding component has a first reset surface at one end facing the second cover plate, and the second cover plate has a second reset surface at one end facing the first sliding component. The first reset surface can slide and cooperate with the second reset surface to push the second sliding component from the extended position to the retracted position.

[0019] With this configuration, the first reset surface and the second reset surface constitute an automatic reset mechanism. When the drive component drives the first sliding component to move in the opposite direction, the sliding contact between the first reset surface and the second reset surface generates a component force in the opposite direction along the second preset direction, driving the second sliding component to move in the opposite direction synchronously. There is no need to set up additional reset components such as springs and cylinders, which simplifies the mechanism structure and reduces the risk of failure. The sliding cooperation ensures that the reset action is smooth and impact-free, avoids positional deviation of the second sliding component during the reset process, and ensures the consistency of the retracted position after each reset.

[0020] In one embodiment, the first sliding component has a third limiting surface at one end facing the first cover plate, and the first cover plate has a second guiding surface at one end facing the first sliding component. In the push-out position, the third limiting surface abuts against the second guiding surface to prevent the first sliding component and the second sliding component from disengaging from the push-out position.

[0021] With this configuration, the third limiting surface and the second guiding surface reuse the structure of the second guiding surface to achieve the push-out position limit, eliminating the need for additional independent limiting components, simplifying the mechanism structure and reducing manufacturing costs; at the same time, it prevents excessive contact between the punching component and the workpiece, which could cause the hole depth to exceed the standard or damage to the component.

[0022] In one embodiment, the mold changing structure further includes a first guide component disposed at the end of the first sliding component near the driving component, the first guide component having a first guide channel extending along the first preset direction, the first sliding component being able to move within the first guide channel; and / or, the mold changing structure further includes a second guide component disposed at the end of the first sliding component away from the driving component, the second guide component having a second guide channel extending along the first preset direction, the first sliding component being able to move within the second guide channel.

[0023] With this configuration, the second guide component and the first guide component form a two-end guiding constraint on the first sliding component, respectively limiting the movement trajectory of the first sliding component from both ends near and far from the drive component. This prevents the middle part of the first sliding component from sagging or shifting due to its long length, ensuring the overall movement trajectory of the first sliding component is accurate and improving the matching accuracy with the second sliding component. The two-end guide can disperse the lateral force during the movement of the first sliding component to the two guide components, avoiding damage caused by excessive force on a single guide component and improving the overall load-bearing capacity of the mechanism. At the same time, the two-end guide makes the movement of the first sliding component more stable.

[0024] In one embodiment, the punching assembly includes a punch fixing block and at least one punch, the punch fixing block having a plurality of mounting holes, and the punch being detachably disposed in the mounting holes.

[0025] With this configuration, the multiple mounting holes of the punch fixing block provide precise positioning for the punch; the detachable design of the punch means that when the punch is worn or damaged, only the punch needs to be replaced individually; and the multiple mounting holes can be selected to install different numbers and specifications of punches according to processing requirements.

[0026] This application also provides a stamping die, including the above-described die changing structure.

[0027] This setup eliminates the need for machine downtime and mold disassembly during the entire changeover process, allowing it to be completed during mold closure or standby, significantly improving production cycle time and flexible manufacturing capabilities. It also enables rapid recall of multiple punching patterns, reducing the number of molds and inventory costs. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a cross-sectional schematic diagram of the mold changing structure provided in this application.

[0030] Figure 2 This is a schematic diagram of the ejection position of the mold changing structure provided in this application.

[0031] Figure 3 This is a schematic diagram of the retraction position of the mold changing structure provided in this application.

[0032] Figure 4 This is a partial structural diagram of the mold changing structure provided in this application.

[0033] Reference numerals: 1. Mounting plate; 2. Drive assembly; 3. First sliding assembly; 31. First guide surface; 32. First limiting surface; 33. First reset surface; 34. Third limiting surface; 4. Second sliding assembly; 41. First cover plate; 411. Second guide surface; 412. Second limiting surface; 42. Second cover plate; 421. Second reset surface; 43. Support member; 5. Punching assembly; 51. Punch; 52. Pad; 53. Punch fixing block; 531. Mounting hole; 6. First guide assembly; 61. First guide channel; 7. Second guide assembly; 71. Second guide channel. Detailed Implementation

[0034] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0035] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0039] In the actual production process of stamping dies, different product models often require different punching layouts or blanking processes. In traditional die design, each product usually needs to be equipped with an independent punching module, resulting in a large number of dies, long die changeover time, and large storage space occupation. Moreover, frequent disassembly and assembly of punch components can easily cause positioning errors and structural wear, affecting processing accuracy and production efficiency. Especially in small-batch, multi-variety manufacturing scenarios, existing dies cannot achieve rapid switching of functional modules, which restricts the response speed and automation level of the production line. In addition, when switching models, existing dies must first be disassembled, moved to a designated location, and then disassembled again for die changeover, which is a cumbersome process.

[0040] Therefore, in order to solve the above problems, such as Figures 1 to 4 As shown, this application provides a mold changing structure and a stamping die to enable the punching function module to automatically switch, accurately position, and stably operate inside the mold, thereby shortening the changeover cycle.

[0041] like Figures 1 to 3 As shown, this application provides a mold changing structure for stamping molds. The mold changing structure includes a mounting plate 1, a drive assembly 2, a first sliding assembly 3, a second sliding assembly 4, and a punching assembly 5. The drive assembly 2 is disposed on the mounting plate 1, and the first sliding assembly 3 is disposed on the mounting plate 1. The first sliding assembly 3 can be driven by the drive assembly 2 to reciprocate along a first preset direction and has an extended position and a retracted position. The second sliding assembly 4 is disposed on the mounting plate 1 and is in transmission cooperation with the first sliding assembly 3. The second sliding assembly 4 can reciprocate along a second preset direction as the first sliding assembly 3 reciprocates along the first preset direction. The second preset direction and the first preset direction form an angle with each other. The punching assembly 5 is detachably disposed on the second sliding assembly 4 and can move together with the second sliding assembly 4. In the extended position, the punching assembly 5 is in a working state, and in the retracted position, the punching assembly 5 is in a non-working state.

[0042] With this configuration, drive component 2 serves as the power unit; the first sliding component 3 acts as the power transmission carrier, completely transmitting the power output from drive component 2 to the second sliding component 4, avoiding energy loss and response delay caused by power dispersion or excessively long transmission paths; the first sliding component 3 and the second sliding component 4 are coupled in a preset direction with an included angle, which precisely converts the pushing motion in the first preset direction (e.g., horizontal direction) into the pressing or lifting motion in the second preset direction (e.g., vertical direction), realizing the functional switching between the working and non-working states of punching component 5, improving the adaptability of the same mold to different hole requirements, and eliminating the need for manual entry into the mold during mold changeover, avoiding the need to unscrew screws, remove pressure blocks, and manually assemble and disassemble punches. The design of the punching component 5, which is detachably mounted on the second sliding component 4, eliminates the need to disassemble the entire changing mechanism after the punching component 5 wears out. Production can be resumed simply by replacing the punching component 5, reducing maintenance time and costs. Specifically, when the first sliding component 3 is in the extended position, the second sliding component 4 is pushed to the end of its downward stroke, and the punching component 5 extends and enters the working position, directly contacting the sheet metal to perform the punching operation. When the first sliding component 3 retracts to the retracted position, the second sliding component 4 simultaneously lifts, and the punching component 5 retracts and leaves the working area. The sheet metal no longer forms holes as it passes through, thus completing the entire changing process with a single reciprocating motion of the drive component 2. This significantly shortens the changing response time and reduces production line downtime losses. Furthermore, the power output of the drive component 2 is stable and controllable, avoiding component jamming or incomplete movements caused by uneven force during manual operation, ensuring the reliability and repeatability of the changing action. Mounting plate 1 provides a unified assembly reference surface for all components, ensuring the relative positional accuracy between moving parts, avoiding the loss of reference due to frequent disassembly and assembly, realizing in-situ online mold changeover, eliminating the need to remove the mold and transport it to the designated mold removal area, and greatly improving mold changeover efficiency and production flexibility.

[0043] Among them, the drive component 2 can be a structure that can achieve stable drive, such as cylinder drive, motor drive or hydraulic drive.

[0044] In the illustrated embodiment, the first preset direction is the horizontal direction, and the second preset direction is the vertical direction.

[0045] In another embodiment, the first preset direction is a vertical direction and the second preset direction is a horizontal direction; or, both the first preset direction and the second preset direction are horizontal; or, depending on the actual layout requirements, the first preset direction and the second preset direction can be designed as two directions forming an acute angle or an obtuse angle with each other.

[0046] like Figures 1 to 3As shown, in one embodiment, the second sliding assembly 4 includes a first cover plate 41, and a punching assembly 5 is detachably disposed on the end of the first cover plate 41 opposite to the first sliding assembly 3. With this configuration, the first cover plate 41 serves as an external support platform for the second sliding assembly 4, with its end away from the first sliding assembly 3 facing the mold working area, facilitating direct installation of the punching assembly 5. The punching assembly 5 can be fixed to the first cover plate 41 by screws, locating pins, or other quick-release structures. Disassembly only requires loosening the fasteners to remove the entire punching unit, enabling quick replacement. Since the first cover plate 41 moves with the second sliding assembly 4 as a whole, the positional change of the punching assembly 5 depends entirely on the spatial displacement of the first cover plate 41, ensuring relative positional consistency after each installation. This structure simplifies the assembly process, avoids the need to recalibrate the position of the punching assembly 5 for each model change, and significantly shortens preparation time. The presence of the first cover plate 41 makes the installation position of the punching assembly 5 clear and the force path well-defined, contributing to improved stability during dynamic operation.

[0047] Specifically, the first cover plate 41 of the second sliding component 4 can be designed with a standard modular interface, allowing the punching component 5 to be quickly plugged in as a prefabricated module, simplifying the installation process, enabling punching components 5 with different functions or specifications to be plugged in and used, improving the flexibility and configurability of the mold change structure, meeting diverse production needs, and further optimizing production efficiency.

[0048] like Figures 1 to 3 As shown, in one embodiment, the first sliding component 3 has a first guide surface 31 at one end facing the first cover plate 41, and the first cover plate 41 has a second guide surface 411 at one end facing the first sliding component 3. The first guide surface 31 can slide and engage with the second guide surface 411 to push the second sliding component 4 from the retracted position to the extended position. With this configuration, the sliding engagement of the first guide surface 31 and the second guide surface 411 constitutes the core of motion conversion. When the first sliding component 3 moves along a first preset direction, the contact between the two guide surfaces generates a component force along a second preset direction, transmitting the power of the first sliding component 3 to the second sliding component 4, thus achieving a change in motion direction. The large contact area of ​​the sliding engagement ensures uniform force transmission, avoiding excessive local force leading to wear of the guide surfaces, while also ensuring smooth and unobstructed movement of the second sliding component 4. The second guide surface 411 is located on the first cover plate 41, allowing the force to be directly transmitted to the first cover plate 41, which then synchronously drives the punching component 5 to move, ensuring accurate state switching of the punching component 5 and improving the reliability of the changeover. Furthermore, the first cover plate 41 is not only a functional load-bearing component but also a power receiving component, and its second guide surface 411 serves as both a guiding structure and a force-bearing surface. This dual role reduces intermediate transmission links and improves energy transfer efficiency.

[0049] Specifically, from the end closest to the drive assembly 2 to the end furthest from the drive assembly 2, both the first guide surface 31 and the second guide surface 411 gradually tilt towards the side furthest from the punching assembly 5. The tilt angles of the first guide surface 31 and the second guide surface 411 can be optimized and adjusted according to specific design requirements.

[0050] In another embodiment, the slope angle of the first guide surface 31 and the second guide surface 411 can be designed as an adjustable structure according to design requirements.

[0051] In another embodiment, depending on design requirements, the first guide surface 31 and the second guide surface 411 can be designed as other transmission structures such as rolling element transmission.

[0052] like Figures 1 to 3 As shown, in one embodiment, the first sliding component 3 has a first limiting surface 32 at one end facing the first cover plate 41, and the first cover plate 41 has a second limiting surface 412 at one end facing the first sliding component 3. In the retracted position, the first limiting surface 32 and the second limiting surface 412 abut against each other to prevent the first sliding component 3 and the second sliding component 4 from disengaging from the retracted position. With this configuration, the first limiting surface 32 and the second limiting surface 412 constitute a mechanical limit for the retracted position. When the first sliding component 3 drives the second sliding component 4 to the retracted position, the abutment of the two limiting surfaces directly restricts further movement of the sliding components, preventing excessive displacement of the sliding components due to excessive power of the driving component 2 or motion inertia, thus preventing structural damage. The abutment of the limiting surfaces also ensures the consistency of each retracted position, preventing misalignment of the guide surface during the next changeover due to positional deviation, and improving the repeatability accuracy of the changeover. Both the first limiting surface 32 and the second limiting surface 412 are planes perpendicular to a second preset direction.

[0053] like Figure 4As shown, in one embodiment, the second sliding assembly 4 further includes a second cover plate 42 and a support member 43. The second cover plate 42 is located at the end of the first sliding assembly 3 away from the first cover plate 41, and the two ends of the support member 43 are respectively connected to the first cover plate 41 and the second cover plate 42. In the illustrated embodiment, there are two support members 43, located on both sides of the first sliding component 3. The two support members 43, the first cover plate 41, and the second cover plate 42 form a working space. The first sliding component 3 is located within the working space and is clamped between the two cover plates. Its movement is bidirectionally constrained, avoiding overturning or uneven wear caused by unilateral force. The two support members 43, the first cover plate 41, and the second cover plate 42 form a closed rigid frame, improving the overall structural strength and torsional resistance of the second sliding component 4, preventing deformation of the second sliding component 4 due to punching impact, and preventing damage to the second sliding component 4 under force. The support members 43 are located on both sides of the first sliding component 3 and can laterally limit the movement of the first sliding component 3, preventing left and right deviation during the movement of the first sliding component 3 and ensuring the fitting accuracy of the first guide surface 31 and the second guide surface 411. In addition, the enclosed workspace provides an independent movement area for the first sliding component 3, which can effectively prevent processing debris, dust and other impurities from entering the gap between the first sliding component 3 and the second sliding component 4, avoid movement jamming caused by impurities, ensure the cleanliness of the mechanism and extend the service life of the mechanism.

[0054] The support member 43, the first cover plate 41, and the second cover plate 42 can be connected by bolts, snaps, magnetic attraction, or other similar structures.

[0055] like Figures 1 to 3As shown, in one embodiment, the first sliding component 3 has a first reset surface 33 at one end facing the second cover plate 42, and the second cover plate 42 has a second reset surface 421 at one end facing the first sliding component 3. The first reset surface 33 can slide and engage with the second reset surface 421 to push the second sliding component 4 from the pushed-out position to the retracted position. With this configuration, the first reset surface 33 and the second reset surface 421 constitute an automatic reset mechanism. When the drive component 2 drives the first sliding component 3 to move in the opposite direction (from the pushed-out position to the retracted position), the sliding contact between the first reset surface 33 and the second reset surface 421 generates a component force in the opposite direction along a second preset direction, driving the second sliding component 4 to move synchronously in the opposite direction. This eliminates the need for additional reset components such as springs or cylinders, simplifying the mechanism structure and reducing the risk of failure. The sliding engagement ensures a smooth and impact-free reset action, preventing positional deviation of the second sliding component 4 during the reset process and ensuring the consistency of the retracted position after each reset. In addition, the second reset surface 421 is disposed on the second cover plate 42. The rigid structure of the second cover plate 42 can withstand the force during reset and avoid deformation. At the same time, it works in conjunction with the first guide surface 31 and the second guide surface 411 to realize the continuous execution of the changeover and reset, thereby improving the changeover efficiency.

[0056] Specifically, from the end closest to the drive assembly 2 to the end furthest from the drive assembly 2, both the first reset surface 33 and the second reset surface 421 gradually tilt towards the side furthest from the punching assembly 5. The tilt angles of the first reset surface 33 and the second reset surface 421 can be optimized and adjusted according to specific design requirements.

[0057] In the illustrated embodiment, the tilt angles of the first reset surface 33 and the second reset surface 421 can be the same as the tilt angles of the first guide surface 31 and the second guide surface 411.

[0058] In another embodiment, depending on actual needs, the tilt angles of the first reset surface 33 and the second reset surface 421 can be designed to be different from the tilt angles of the first guide surface 31 and the second guide surface 411.

[0059] In another embodiment, the inclined angle of the first reset surface 33 and the second reset surface 421 can be designed as an adjustable structure according to design requirements.

[0060] In another embodiment, depending on design requirements, the first reset surface 33 and the second reset surface 421 can be designed with other transmission structures such as rolling element transmission.

[0061] like Figures 1 to 3As shown, in one embodiment, the first sliding component 3 has a third limiting surface 34 at one end facing the first cover plate 41, and the first cover plate 41 has a second guide surface 411 at one end facing the first sliding component 3. In the ejected position, the third limiting surface 34 abuts against the second guide surface 411 to prevent the first sliding component 3 and the second sliding component 4 from disengaging from the ejected position. This configuration allows the third limiting surface 34 and the reused second guide surface 411 to limit the ejected position, eliminating the need for additional independent limiting components, simplifying the mechanism structure, and reducing manufacturing costs. In the ejected position, the abutment between the third limiting surface 34 and the second guide surface 411 directly restricts further movement of the first sliding component 3, preventing the second sliding component 4 from exceeding its working position due to over-driving of the driving component 2, and preventing excessive contact between the punching component 5 and the workpiece, which could lead to excessive hole depth or component damage. The limiting mechanism also ensures consistency in the ejected position each time, preventing fluctuations in punching accuracy due to positional deviations. In addition, the second guide surface 411 serves both guiding and limiting functions. The rigid structure of the first cover plate 41 can withstand the force during limiting, preventing deformation of the second guide surface 411 and ensuring long-term reliable limiting effect.

[0062] Specifically, from the end closest to the drive assembly 2 to the end furthest from the drive assembly 2, the third limiting surface 34 gradually tilts towards the side furthest from the punching assembly 5. The tilt angle of the third limiting surface 34 can be optimized and adjusted according to specific design requirements.

[0063] In the illustrated embodiment, the third limiting surface 34 may have the same inclination angle as the first guide surface 31 and the second guide surface 411.

[0064] In another implementation, the tilt angle of the third limiting surface 34 can be designed to be different from the tilt angle of the first guide surface 31 and the second guide surface 411, depending on actual needs.

[0065] In another embodiment, the third limiting surface 34 is a plane perpendicular to the first preset direction.

[0066] like Figures 1 to 3As shown, in one embodiment, the mold changing structure further includes a first guide component 6 disposed at one end of the first sliding component 3 near the drive component 2 and a second guide component 7 disposed at one end of the first sliding component 3 away from the drive component 2. The first guide component 6 is provided with a first guide channel 61 extending along a first preset direction, and the first sliding component 3 can move within the first guide channel 61; the second guide component 7 is provided with a second guide channel 71 extending along the first preset direction, and the first sliding component 3 can move within the second guide channel 71. This configuration, with the second guide component 7 and the first guide component 6 forming end-to-end guiding constraints on the first sliding component 3, limits the movement trajectory of the first sliding component 3 from both ends, near and far from the drive component 2. This prevents the middle part of the first sliding component 3 from sagging or shifting due to its long length, ensuring the overall movement trajectory of the first sliding component 3 is accurate and improving the matching accuracy with the second sliding component 4. The end-to-end guidance disperses the lateral force during the movement of the first sliding component 3 to the two guide components, preventing damage caused by excessive force on a single guide component and improving the overall load-bearing capacity of the mechanism. Simultaneously, the end-to-end guidance makes the movement of the first sliding component 3 smoother, reducing vibration and preventing increased gaps in the guide surface mating due to vibration, ensuring the repeatability and reliability of the changing action. The end-to-end guidance ensures that the first sliding component 3 maintains a precise orientation throughout its entire movement stroke, providing a foundation for the stable movement of the second sliding component 4 and further improving the changing quality.

[0067] In another embodiment, depending on actual needs, the mold changing structure may also include only the first guide component 6 or the second guide component 7.

[0068] like Figures 1 to 3 As shown, in one embodiment, the punching assembly 5 includes a punch fixing block 53 and at least one punch 51. The punch fixing block 53 has multiple mounting holes 531, and the punch 51 is detachably mounted in the mounting holes 531. This configuration provides precise positioning for the punch 51 through the multiple mounting holes 531, ensuring that the axis of the punch 51 is aligned with the punching direction and preventing the punch 51 from shifting or shaking during the punching process. The detachable nature of the punch 51 means that when the punch 51 is worn or damaged, only the punch 51 needs to be replaced individually, without disassembling the entire punching assembly 5 or the second sliding assembly 4, reducing maintenance time and costs. The multiple mounting holes 531 allow for the selection of different numbers and specifications of punches 51 according to processing requirements, enabling multi-specification hole processing in conjunction with the die-changing mechanism, improving mold versatility, and adapting to the production needs of various workpiece models.

[0069] like Figures 1 to 3As shown, in one embodiment, the punching assembly 5 further includes a pad 52, which is disposed on the side of the punch fixing block 53 near the second sliding assembly 4. In the illustrated embodiment, there is one pad 52. With this configuration, the pad 52 serves as an intermediate structure between the punch fixing block 53 and the second sliding assembly 4. By increasing or decreasing the thickness of the pad 52 or replacing it with pads of different heights, the working height of the punch 51 can be precisely adjusted, solving the adaptation problem for different plate thicknesses or hole depth requirements. The pad 52 can also absorb some of the impact force during punching, reducing the direct transmission of impact force to the second sliding assembly 4 and preventing a decrease in the accuracy of the second sliding assembly 4 due to impact vibration. Simultaneously, the pad 52 can compensate for dimensional errors between the punch fixing block 53 and the second sliding assembly 4, ensuring that the axis of the punch 51 is perpendicular to the workpiece surface after installation, thus improving punching accuracy. Furthermore, the cooperation between the pad 52 and the punch fixing block 53 makes the height adjustment of the punch 51 more convenient, without requiring modification of the structure of the punch fixing block 53 or the second sliding assembly 4, reducing adjustment costs and improving device adaptability.

[0070] In another implementation, the number of pads 52 can be designed to be two or more, depending on the actual design requirements.

[0071] In another implementation, the size of the pad 52 can be designed as an adjustable structure according to actual design requirements.

[0072] This application also provides a stamping die, including the aforementioned die-changing structure. With this configuration, the die-changing structure is fixed to the die via a mounting plate 1. During the stamping cycle, when a specific punching function needs to be activated, the drive component 2 is activated, driving the first sliding component 3 to move along a first preset direction. This, in turn, through transmission, pushes the second sliding component 4 to move along a second preset direction, allowing the punching component 5 to enter the working position and participate in the forming operation. When product switching or process changes occur, the drive component 2 reverses its movement, causing the punching component 5 to automatically retract to a non-working state, avoiding interference with other steps. The entire die-changing process requires no machine shutdown or die disassembly and can be completed during die closure or standby, significantly improving production cycle time and flexible manufacturing capabilities. Furthermore, because the die-changing structure is modular and reconfigurable, the same stamping die can achieve rapid recall of multiple punching modes by replacing different configurations of the punch fixing block 53 or the entire punching component 5, reducing the number of dies and inventory costs. Furthermore, since all moving parts are encapsulated within a stable structure formed by mounting plate 1, it exhibits excellent vibration and shock resistance, enabling it to operate reliably for extended periods in high-frequency, heavy-load industrial environments.

[0073] Furthermore, the mold changing structure can be controlled by a voice module, which is equipped with a controller, a voice receiving module, and a voice parsing module. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the controller controls the mold changing structure to perform corresponding operations, thereby realizing intelligent control of the mold changing structure and improving the user experience.

[0074] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A mold changing structure for stamping dies, characterized in that, include: Mounting plate (1); The drive component (2) is disposed on the mounting plate (1); The first sliding component (3) is disposed on the mounting plate (1). The first sliding component (3) can be driven by the driving component (2) to reciprocate along a first preset direction and has an extended position and a retracted position. A second sliding component (4) is disposed on the mounting plate (1). The second sliding component (4) is in transmission cooperation with the first sliding component (3) and can reciprocate along a second preset direction as the first sliding component (3) reciprocates along the first preset direction. The second preset direction and the first preset direction form an angle with each other. The punching assembly (5) is detachably disposed on the second sliding assembly (4) and can move together with the second sliding assembly (4). In the extended position, the punching assembly (5) is in the working state, and in the retracted position, the punching assembly (5) is in the non-working state.

2. The mold changing structure according to claim 1, characterized in that, The second sliding assembly (4) includes a first cover plate (41), and the punching assembly (5) is detachably disposed at one end of the first cover plate (41) away from the first sliding assembly (3).

3. The mold changing structure according to claim 2, characterized in that, The first sliding component (3) has a first guide surface (31) at one end facing the first cover plate (41), and the first cover plate (41) has a second guide surface (411) at one end facing the first sliding component (3). The first guide surface (31) can slide and cooperate with the second guide surface (411) to push the second sliding component (4) from the retracted position to the extended position.

4. The mold changing structure according to claim 2, characterized in that, The first sliding component (3) has a first limiting surface (32) at one end facing the first cover plate (41), and the first cover plate (41) has a second limiting surface (412) at one end facing the first sliding component (3). In the retracted position, the first limiting surface (32) abuts against the second limiting surface (412) to prevent the first sliding component (3) and the second sliding component (4) from coming out of the retracted position.

5. The mold changing structure according to claim 2, characterized in that, The second sliding assembly (4) further includes a second cover plate (42) and a support member (43). The second cover plate (42) is located at one end of the first sliding assembly (3) away from the first cover plate (41). The two ends of the support member (43) are respectively connected to the first cover plate (41) and the second cover plate (42).

6. The mold changing structure according to claim 5, characterized in that, The first sliding component (3) has a first reset surface (33) at one end facing the second cover plate (42), and the second cover plate (42) has a second reset surface (421) at one end facing the first sliding component (3). The first reset surface (33) can slide and cooperate with the second reset surface (421) to push the second sliding component (4) from the push-out position to the retracted position.

7. The mold changing structure according to claim 5, characterized in that, The first sliding component (3) has a third limiting surface (34) at one end facing the first cover plate (41), and the first cover plate (41) has a second guide surface (411) at one end facing the first sliding component (3). In the push-out position, the third limiting surface (34) abuts against the second guide surface (411) to prevent the first sliding component (3) and the second sliding component (4) from coming out of the push-out position.

8. The mold changing structure according to claim 1, characterized in that, The mold changing structure further includes a first guide component (6) disposed at one end of the first sliding component (3) near the driving component (2), the first guide component (6) having a first guide channel (61) extending along the first preset direction, the first sliding component (3) being able to move within the first guide channel (61); and / or, The mold changing structure also includes a second guide component (7) disposed at one end of the first sliding component (3) away from the driving component (2). The second guide component (7) is provided with a second guide channel (71) extending along the first preset direction. The first sliding component (3) can move within the second guide channel (71).

9. The mold changing structure according to claim 1, characterized in that, The punching assembly (5) includes a punch fixing block (53) and at least one punch (51). The punch fixing block (53) is provided with a plurality of mounting holes (531), and the punch (51) is detachably disposed in the mounting holes (531).

10. A stamping die, characterized in that, Includes the mold changing structure according to any one of claims 1-9.

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