Punching die

Abstract

The application relates to a stamping die, and relates to the technical field of dies. The stamping die comprises an upper die base, a lower die base, a punching die set and a driving mechanism. The punching die set is arranged between the upper die base and the lower die base, and the punching die set is slidably connected to the upper die base along a first direction. The driving mechanism is connected to the lower die base and located on one side of the punching die set in the first direction, and the driving mechanism is used for driving the punching die set to move. The stamping die of the embodiment solves the problem of how to conveniently find problems and faults of the stamping die in a stamping process.

Description

Technical Field

[0001] This application relates to the field of mold technology, specifically to stamping dies. Background Technology

[0002] Traditional gasoline-powered vehicles rely on gasoline combustion for power, producing large amounts of pollutants such as carbon dioxide and nitrogen oxides during operation, exacerbating the environmental burden. With the continuous maturation of new energy technologies, electric vehicles, powered by electricity, are gradually becoming the mainstream direction of the vehicle industry due to their advantages of zero emissions and high energy efficiency. Considering the diversity of current market demands, the same model needs to be offered in both gasoline and electric versions to provide consumers with diversified choices. Gasoline vehicles require fuel filler necks on their body panels for refueling, while electric vehicles do not. Therefore, a single stamping die is needed to produce both "with fuel filler neck" and "without fuel filler neck" versions of the same vehicle model's body panels.

[0003] In the prior art, stamping dies include an upper die assembly, a lower die assembly, and a core assembly. The upper die assembly includes an upper die base for moving along a first direction and an upper slide block mounted on the upper die base. The core assembly includes an outer core, a base, a lower slide block, an inner core, and an insert. The stamping die provided by the present invention, by providing an outer core that presses the workpiece along a first direction and an inner core that extends out of the outer core along a second direction and presses the workpiece.

[0004] Stamping dies often adopt a semi-enclosed structure, which means that operators cannot directly observe the working status of the stamping die during the stamping process. The visibility is low, making it difficult to detect problems and faults in the stamping process. Utility Model Content

[0005] This application provides a connecting stamping die to at least solve the technical problem of how to easily detect problems and faults that occur in the stamping die during the stamping process. The technical solution adopted in this application is as follows: This application provides a stamping die, which includes an upper die base, a lower die base, a punching module, and a driving mechanism. The punching module is disposed between the upper die base and the lower die base, and is slidably connected to the upper die base along a first direction, which is perpendicular to the arrangement direction of the upper and lower die bases. The driving mechanism is connected to the lower die base and is located on one side of the punching module in the first direction. The driving mechanism is used to drive the punching module to move.

[0006] According to the above technical means, the punching module is set between the upper die base and the lower die base without adding any other components. The punching area is exposed within the operator's field of vision, and the deformation trajectory of the part to be punched and the edge state of the part to be punched after punching can be seen intuitively without disassembling the components. This makes it convenient for the operator to check whether there are burrs or cracks in the part to be punched. The punching module is slidably connected to the upper die base along the first direction. The operator can observe the movement range of the punching module, the fitting clearance between the punching module and the upper die base, and the alignment of the punching module with the part to be punched in real time. The accuracy of the mold closing between the upper die base and the lower die base can be confirmed visually, avoiding the scrapping of the part to be punched due to the positioning deviation of the upper die base and the lower die base. The drive mechanism is connected to the lower die base and is located on one side of the punching module in the first direction. The process of the drive mechanism driving the punching module is in the open field of vision. The operator can directly observe whether the drive mechanism is operating smoothly. If there is any abnormality such as push delay, it can be detected immediately to prevent the fault from escalating. Finally, during routine maintenance, there is no need to disassemble the upper and lower die holders. The source of the fault can be quickly located by observing the movement of the drive mechanism and the sliding state of the punching module. Operators can visually observe whether there are any problems with the punching module and drive mechanism without the need for additional tools, which avoids missing potential faults due to invisibility and greatly shortens the maintenance time.

[0007] In one possible implementation, the driving mechanism includes a driving block structure that is slidably connected to the lower die base along a second direction perpendicular to the first direction. The driving block structure includes a first guide slide portion, and the punching module includes a second guide slide portion. The movement of the driving block structure enables the first guide slide portion and the second guide slide portion to cooperate and push the punching module to move.

[0008] According to the above technical means, the drive block structure is slidably connected to the lower die base along the second direction. The sliding trajectory of the drive block structure is exposed in the operator's field of vision. The operator can observe whether the movement of the drive block structure is in place. If there is any abnormality such as jamming or displacement, it can be quickly discovered without disassembly. The mating area of ​​the first guide slide and the second guide slide is located in the open space between the punching module and the lower die, without any obstruction. The operator can observe the status of the punching module and the drive block structure in real time, as well as the contact status of the punching module and the drive block structure during operation.

[0009] In one possible implementation, at least one of the first guide slide and the second guide slide is a guide slope, which is inclined relative to the second direction.

[0010] Based on the aforementioned technical means, the guide slope is an exposed surface, allowing operators to directly observe the fit between the first and second guide parts. Any significant gaps or misfits can be quickly identified without tools, preventing the problem from being discovered only when the punching die exhibits punching accuracy deviations. Furthermore, if wear occurs on the guide slope during long-term use, its angled design, without obstruction from other components, makes it clearly visible to the naked eye, allowing for direct identification of wear marks. This enables the timely replacement of either the first or second guide part, preventing further wear and subsequent displacement of the punching die. Finally, during the punching process, scrap and debris are easily generated; operators can directly observe whether foreign objects are present on the first and second guide parts, further facilitating their operation.

[0011] In one possible implementation, the drive block structure further includes a first limiting portion, and the punching module includes a second limiting portion. The first limiting portion is located on the side of the second limiting portion closer to the drive mechanism, so as to limit the drive block structure in a second direction.

[0012] According to the above technical means, when the driving block structure pushes the punching module to move along the first direction to the workpiece to be punched through the first guide slide, the first limiting part and the second limiting part are connected, which can accurately control the position of the punching module and the driving block structure. After the punching module completes the punching operation, the second limiting part can help the punching module return from the working position to the initial position, ensuring that the punching module can be accurately and timely reset, so as to facilitate the next operation of the punching module. At the same time, the second limiting part can also protect the stamping die, avoiding damage or deformation of the stamping die due to the punching module failing to reset correctly.

[0013] In one possible implementation, the first limiting part includes a connecting plate and a limiting plate, the connecting plate being connected to the first guide slide part, and the limiting plate being connected to the end of the connecting plate away from the first guide slide part and located on one side of the connecting plate in the second direction.

[0014] According to the above technical means, the limiting plate is located on one side of the connecting plate in the second direction. When the driving block structure slides along the second direction, if the force is uneven and a displacement occurs, the limiting plate can limit the displacement of the driving block, prevent the driving block structure and the punching die from separating, reduce the shaking of the driving block structure and the punching die during the contact process, which will cause positional deviation and thus affect the punching accuracy of the punching die.

[0015] In one possible implementation, the lower mold base includes a first groove and a second groove extending along a second direction. The first groove is recessed from the surface of the lower mold base toward the upper mold base in a direction opposite to the upper mold base, and the second groove is recessed from the inner wall surface of the first groove in a first direction. The drive block structure includes a drive block body and a sliding block. The sliding block is connected to the drive block body, with the sliding block body partially located in the first groove and the sliding block located in the second groove.

[0016] According to the above technical means, the first groove is recessed from the surface of the lower mold base toward the upper mold base in the direction opposite to the upper mold base. The sliding block body is located in the first groove. The inner walls on both sides of the first groove restrict the displacement of the sliding block body in the first direction, which is equivalent to providing a linear track for the driving block body in the second direction, ensuring that the driving block body moves along the same path and avoiding the sliding deviation of the driving block body. The second groove is recessed from the inner wall surface of the first groove in the first direction. The sliding block is located in the second groove. When the driving block body is affected by the reaction force of the guide slope or vibration, and moves in the first direction, the inner wall of the second groove restricts the side of the sliding block, preventing the driving block body from shifting in the first direction, and further improving the stability of the punching module.

[0017] In one possible implementation, the drive mechanism further includes a power component connected to the lower mold base, and the power component is drively connected to the drive block structure for driving the drive block structure to move.

[0018] According to the above technical means, the power component is connected to the upper part of the lower mold base, and the operating status of the power component can be observed without disassembly, reducing unnecessary disassembly work.

[0019] In one possible implementation, the punching module includes a movable block and a punching component, the movable block being slidably connected to an upper die base along a first direction, and the punching component being connected to the end of the movable block away from the drive mechanism.

[0020] Based on the above technical means, operators can directly observe the contact state between the punched part and the part to be punched. For example, when the cutting edge of the punched part cracks locally, it will cause a serrated defect on the edge of the part to be punched after stamping, which can be directly detected by the operator through vision. The wear of the punched part and the connection deviation of the moving block can be directly judged through the punching effect and the operator's visual observation, which improves the visibility of the punching die.

[0021] In one possible implementation, the punching module further includes a reset member disposed between the movable block and the upper die base, the reset member being used to generate a reset force on the movable block in a first direction.

[0022] Based on the above technical means, the reset component is located between the movable block and the upper die base, exposed to the operator's field of vision. The status of the punching die and the reset effect of the movable block can be directly observed. If the movable block is not reset properly, the cause can be quickly located by the status of the reset component and the position of the movable block. Unlike traditional dies, it is not necessary to disassemble other adjacent parts first and then check the internal reset component, which speeds up the maintenance time and improves the working efficiency of the stamping die.

[0023] In one possible implementation, the punching module further includes a pressure member and an elastic member, the pressure member being disposed around the punching part, and the elastic member being connected between the pressure member and the movable block, the pressure member being used to press the part to be punched.

[0024] According to the above technical means, the pressure member is set around the punching part to form an enclosing structure, ensuring that the part to be punched can be pressed from all sides before punching; the elastic member is connected between the pressure member and the moving part. During operation, the pressure member first contacts and presses the part to be punched to prevent the material from shifting during the punching process. As the moving block continues to move, the elastic member is compressed, and the punching part completes the punching action.

[0025] Therefore, the above-mentioned technical features of this application have the following beneficial effects: (1) By setting the punching module between the upper die base and the lower die base without adding any other components, the punching area is exposed to the operator's field of vision. The deformation trajectory of the part to be punched and the edge state of the part to be punched after punching by the punching module can be seen intuitively without disassembling the components. This makes it convenient for the operator to check whether there are burrs or cracks in the part to be punched. The punching module is slidably connected to the upper die base along the first direction. The operator can observe the movement range of the punching module, the fitting clearance between the punching module and the upper die base, and the alignment of the punching module with the part to be punched in real time. The accuracy of the mold closing between the upper die base and the lower die base can be confirmed visually, avoiding the scrapping of the part to be punched due to the positioning deviation between the upper die base and the lower die base. The drive mechanism is connected to the lower die base and located on one side of the punching module in the first direction. The process of the drive mechanism driving the punching module is in the open field of vision. The operator can directly observe whether the drive mechanism is operating smoothly. If there is an abnormality such as a push delay, it can be detected immediately to avoid the escalation of the fault. Finally, during routine maintenance, there is no need to disassemble the upper and lower die holders. The source of the fault can be quickly located by observing the movement of the drive mechanism and the sliding state of the punching module. Operators can visually observe whether there are any problems with the punching module and drive mechanism without the need for additional tools, which avoids missing potential faults due to invisibility and greatly shortens the maintenance time.

[0026] (2) In this application, the drive block structure is slidably connected to the lower die base along the second direction. The sliding trajectory of the drive block structure is exposed in the operator's field of vision. The operator can observe whether the movement of the drive block structure is in place. If there is any abnormality such as jamming or offset, it can be quickly discovered without disassembly. The cooperation area of ​​the first guide slide and the second guide slide is located in the open space between the punching module and the lower die, without any obstruction. The operator can observe the status of the punching module and the drive block structure in real time as well as the contact status of the punching module and the drive block structure during operation.

[0027] (3) In this application, the guide slope is an exposed surface, so the operator can directly see the fit between the first guide part and the second guide part. If there is an obvious gap or misfit, it can be quickly discovered without the aid of tools, avoiding the problem of discovering the problem only when the punching die has a punching accuracy deviation. On the other hand, if the guide slope wears out during long-term use, since the guide slope is inclined and not blocked by other parts, it can be clearly identified by the naked eye. The wear marks can be directly identified, and the first guide part or the second guide part can be replaced in advance after the problem occurs, so as to avoid the wear from aggravating the deviation of the punching die. Finally, waste debris is easily generated during the punching process. The operator can also directly observe whether there are foreign objects in the first guide part and the second guide part, which further facilitates the operation of the operator.

[0028] (4) In this application, when the punching module is pushed along the first direction to the workpiece by the first guide slide part through the drive block structure, the first limiting part and the second limiting part are connected, which can accurately control the position of the punching module and the drive block structure. After the punching module completes the punching operation, the second limiting part can help the punching module return from the working position to the initial position, ensuring that the punching module can be accurately and timely reset, so as to facilitate the next operation of the punching module. At the same time, the second limiting part can also protect the stamping die, avoiding damage or deformation of the stamping die due to the punching module failing to reset correctly.

[0029] (5) In this application, the limiting plate is located on one side of the connecting plate in the second direction. When the drive block structure slides along the second direction, if the force is uneven and a displacement occurs, the limiting plate can limit the displacement of the drive block, prevent the drive block structure and the punching die from separating, reduce the shaking of the drive block structure and the punching die during the contact process, and thus affect the punching accuracy of the punching die.

[0030] (6) In this application, the first groove is recessed from the surface of the lower mold base toward the upper mold base in the direction opposite to the upper mold base. The sliding block body is located in the first groove. The inner walls on both sides of the first groove will restrict the displacement of the sliding block body in the first direction, which is equivalent to providing a linear track for the driving block body in the second direction, ensuring that the driving block body moves along the same path and avoiding the sliding deviation of the driving block body. The second groove is recessed from the inner wall surface of the first groove in the first direction. The sliding block is located in the second groove. When the driving block body is affected by the reaction force of the guide slope or vibration, and moves in the first direction, the inner wall of the second groove restricts the side of the sliding block, protecting the driving block body from the deviation in the first direction, and further improving the stability of the punching module.

[0031] (7) The contact state between the punched part and the part to be punched can be directly observed by the operator. For example, when the cutting edge of the punched part is partially broken, it will cause a serrated defect on the edge of the part to be punched after stamping. The operator can directly discover this visually. The wear of the punched part and the connection deviation of the moving block can be directly judged by the punching effect and the operator's visual observation, which improves the visibility of the punching die.

[0032] (8) In this application, the reset component is located between the movable block and the upper die base. The reset component is exposed in the operator's field of vision, and the status of the punching die and the reset effect of the movable block can be directly observed. If the movable block is not reset properly, the cause can be quickly located by the status of the reset component and the position of the movable block. Unlike traditional dies, it is not necessary to disassemble other adjacent parts first and then check the internal reset component, which speeds up the maintenance time and improves the working efficiency of the stamping die.

[0033] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0034] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application, and do not constitute an undue limitation of this application.

[0035] Figure 1 This is a schematic cross-sectional view of a punching die according to an exemplary embodiment. Figure 2 This is a schematic diagram illustrating the structure of the drive mechanism and the punching module in a punching die in a connected state according to an exemplary embodiment; Figure 3 This is a schematic diagram of the drive mechanism in a punching die according to an exemplary embodiment; Figure 4 This is a schematic diagram of the structure of a punched part in a punching die according to an exemplary embodiment; Figure 5 This is a schematic diagram of the structure of the pressure member in a punching die according to an exemplary embodiment.

[0036] Figure label: 100 - Upper mold base; 200 - Lower mold base; 210 - First groove; 220 - Second groove; 300 - Punching module; 310 - Second guide slide; 320 - Second limiting part; 330 - Movable block; 340 - Punching part; 350 - Reset part; 360 - Pressure plate part; 370 - Elastic part; 400-Drive mechanism; 410-Drive block structure; 411-First guide slide; 412-First limiting part; 4121-Connecting plate; 4122-Limiting plate; 413-Drive block body; 414-Sliding block; 420-Power component; X - First direction; Y - Second direction. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0038] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0039] Please see Figures 1 to 5 This application provides a stamping die, which is a special process equipment used in cold stamping to process materials, such as metal or non-metal materials, into parts or semi-finished products.

[0040] This application illustrates the application of stamping dies to vehicles by way of example. Stamping dies form metal sheets into various parts by pressure, such as side panels with fuel filler caps.

[0041] In some embodiments, the stamping die includes an upper die holder 100, a lower die holder 200, a punching die assembly 300, and a drive mechanism 400. The upper die holder 100 serves as the mounting base for the punching die assembly 300. The upper die holder 100 may be disposed above the lower die holder 200, thereby forming a space between the upper die holder 100 and the lower die holder 200 for stamping the workpiece 340 to be punched, wherein the lower die holder 200 is used to support the sheet metal workpiece to be processed. The workpiece 340 to be punched may be a sheet metal workpiece or other structural parts that require stamping.

[0042] In some embodiments, the punching module 300 is disposed between the upper die holder 100 and the lower die holder 200, and the punching module 300 is slidably connected to the upper die holder 100 along a first direction X, wherein the first direction X is perpendicular to the arrangement direction of the upper die holder 100 and the lower die holder 200. By moving the punching module 300 along the first direction X, the workpiece 340 to be punched on the lower die holder 200 can be punched. The punching module 300 is the core of realizing the punching of the workpiece 340, and can punch the workpiece 340 into the required structure, such as punching holes or trimming edges, according to the stamping process requirements of the workpiece 340. The lower die needs to withstand the reaction force of the punching module 300 during the stamping process.

[0043] With the above settings, the punching area of ​​the punching module 300 is exposed to the operator's field of vision. The deformation trajectory of the workpiece 340 to be punched and the edge state of the workpiece 340 after punching by the punching module 300 can be seen intuitively without disassembling the parts. This makes it convenient for the operator to check whether there are burrs or cracks in the workpiece 340 to be punched.

[0044] Furthermore, the punching module 300 is slidably connected to the upper die holder 100 along the first direction X. The operator can observe the movement range of the punching module 300, the fitting clearance between the punching module 300 and the upper die holder 100, and the alignment of the punching module 300 with the workpiece 340 to be punched in real time. The operator can visually confirm the mold closing accuracy of the upper die holder 100 and the lower die holder 200, thus avoiding the scrapping of the workpiece 340 due to the positioning deviation of the upper die holder 100 and the lower die holder 200.

[0045] The lower die base 200 serves as the fixed foundation for the drive mechanism 400, providing stable support for it. The drive mechanism 400 is connected to the lower die base 200 and located on one side of the punching module 300 in the first direction X. The drive mechanism 400 drives the punching module 300 to move. This allows the process of the drive mechanism 400 driving the punching module 300 to be within an open field of view, enabling operators to directly observe whether the drive mechanism 400 is operating smoothly. Any abnormalities such as pushing delays can be detected immediately, preventing the malfunction from escalating.

[0046] In daily work and maintenance, if the stamping die malfunctions and needs repair, there is no need to disassemble the upper die holder 100 and the lower die holder 200. Operators can quickly locate the source of the fault by observing the movement of the drive mechanism 400 and the sliding state of the punching die 300. Without the aid of additional tools, it is possible to visually observe whether there are any problems with the punching die 300 and the drive mechanism 400, avoiding the omission of potential faults due to invisibility and greatly shortening the repair time.

[0047] In some embodiments, the drive mechanism 400 may also be disposed on one side of the punching module 300 in the first direction X. The drive mechanism 400 is slidably connected to the lower die holder 200 along the first direction X, and the drive mechanism 400 drives the punching module 300 to move along the first direction X. Both the drive mechanism 400 and the punching module 300 are arranged in the first direction X. The drive mechanism 400 is located on one side of the punching module 300, which simplifies the transmission path of the drive mechanism 400, improves the transmission efficiency of the drive mechanism 400, and facilitates precise position control of the punching module 300.

[0048] In some embodiments, the drive mechanism 400 includes a drive block structure 410, which is slidably connected to the lower die base 200 along a second direction Y, the second direction Y being perpendicular to the first direction X. The drive block structure 410 includes a first guide slide portion 411, and the punching module 300 includes a second guide slide portion 310. The movement of the drive block structure 410 enables the first guide slide portion 411 and the second guide slide portion 310 to cooperate and push the punching module 300 to move.

[0049] Specifically, the drive block structure 410 is slidably connected to the lower die base 200 along the second direction Y. The sliding trajectory of the drive block structure 410 is exposed to the operator's field of vision. The operator can observe whether the movement stroke of the drive block structure 410 is in place. If there is any abnormality such as jamming or offset, it can be quickly discovered without disassembly. The mating area of ​​the first guide slide 411 and the second guide slide 310 is located in the open space between the punching module 300 and the lower die, without any obstruction. The operator can observe the status of the punching module 300 and the drive block structure 410 in real time, as well as the contact status of the punching module 300 and the drive block structure 410 during operation.

[0050] In other embodiments, the drive mechanism 400 may also be an electric actuator, a hydraulic actuator, etc. This application illustrates the drive mechanism 400 by way of example, including a drive block structure 410.

[0051] In some embodiments, at least one of the first guide slide portion 411 and the second guide slide portion 310 is a guide slide ramp, which is inclined relative to the second direction Y. The drive block structure 410 is slidably connected to the lower mold base 200 along the second direction Y.

[0052] In this way, since the drive mechanism 400 moves along the second direction Y and the guide slope is inclined relative to the second direction Y, the first guide slide 411 and the second guide slide 310 can come into contact during the movement of the drive mechanism 400. Under the action of the guide slope, the first guide slide 411 and the second guide slide 310 can generate an interaction force along the first direction X, thereby pushing the punching module 300 to move along the first direction X.

[0053] With the above settings, on the one hand, the guide slope is an exposed surface, and the operator can directly see the fit between the first guide part 411 and the second guide part 310. If there is an obvious gap or misfit, it can be quickly discovered without the aid of tools, avoiding the problem from being discovered only when the punching die has a punching accuracy deviation.

[0054] On the other hand, if wear occurs on the guide slope during long-term use, since the guide slope is inclined and not obstructed by other parts, the wear marks can be clearly identified by the naked eye. If a problem occurs, the first guide 411 or the second guide 310 can be replaced in advance to avoid accelerated wear that could cause the punching module 300 to shift. Finally, waste debris is easily generated during the punching process. Operators can also directly observe whether there are foreign objects in the first guide 411 and the second guide 310, which further facilitates the operation.

[0055] In some examples, the first guide slide 411 is a guide slope and the second guide slide 310 is a plane. The combination of the guide slope of the first guide slide 411 and the plane of the second guide slide 310 facilitates processing and maintenance.

[0056] In some examples, both the first guide slide 411 and the second guide slide 310 are guide slopes. The guide slopes of the first guide slide 411 and the second guide slide 310 are parallel. When the guide slopes of the first guide slide 411 and the second guide slide 310 are in contact and pressed, the guide slopes can disperse stress and improve the service life of the punching module 300.

[0057] In some other examples, the first guide slide 411 can be a plane and the second guide slide 310 can be a guide slope, which is the same as the structure described above, and will not be described in detail here.

[0058] In some other examples, the first guide slide 411 can be a convex rail on the drive block structure 410, and the second guide slide 310 corresponds to the groove of the punching module 300. The bottom wall of the groove can be an inclined surface that is inclined relative to the second direction Y. When the drive block structure 410 slides along the second direction Y, the convex rail slides in the groove and can contact and press against the bottom wall of the groove. The force between the convex rail and the bottom wall of the groove drives the punching module 300 to move along the first direction X. The cooperation between the convex rail and the groove can achieve precise control of the motion guidance of the punching module 300, thereby improving the stamping accuracy of the stamping die.

[0059] In some embodiments, the drive block structure 410 further includes a first limiting portion 412, and the punching module 300 includes a second limiting portion 320. The first limiting portion 412 is located on the side of the second limiting portion 320 close to the drive mechanism 400, so as to limit the drive block structure 410 in the second direction Y.

[0060] Specifically, after the punching die 300 completes the punching operation, the second limiting part 320 helps the punching die 300 return from the working position to the initial position, ensuring that the punching die 300 can be accurately and timely reset, so as to facilitate the next operation of the punching die 300. At the same time, the second limiting part 320 also plays a role in protecting the stamping die, preventing damage or deformation of the stamping die due to the punching die 300 failing to reset correctly.

[0061] In some embodiments, the first limiting portion 412 includes a connecting plate 4121 and a limiting plate 4122. The connecting plate 4121 is connected to the first guide slide portion 411, and the limiting plate 4122 is connected to one end of the connecting plate 4121 away from the first guide slide portion 411 and located on one side of the connecting plate 4121 in the second direction Y. The second limiting portion 320 is connected to the connecting plate 4121 and the limiting plate 4122 to reduce the positional deviation of the drive block structure 410 and the stamping die.

[0062] Specifically, the limiting plate 4122 is located on one side of the connecting plate 4121 in the second direction Y. When the driving block structure 410 slides along the second direction Y, if the force is uneven and a displacement occurs, the limiting plate 4122 can limit the displacement of the driving block, prevent the driving block structure 410 from separating from the punching die, reduce the shaking of the driving block structure 410 and the punching die during the contact process, which would cause positional deviation and thus affect the punching accuracy of the punching die.

[0063] In some examples, the connecting plate 4121 and the limiting plate 4122 of the first limiting part 412 are connected in an L-shaped structure, and the second limiting part 320 is a U-shaped groove. The opening of the groove faces the drive block structure 410. When the first limiting part 412 and the second limiting part 320 are engaged, the limiting plate 4122 is embedded in the groove, restricting the stamping die from shifting away from the drive mechanism 400, thus limiting the stamping die and the drive mechanism 400 in the second direction Y.

[0064] In some other examples, the first limiting part 412 can also be a cylindrical pin; the second limiting part 320 is an oblong hole opened on the punching module 300, the width of which is greater than the diameter of the cylindrical pin. When the punching module 300 moves along the first direction X, the inner walls of both ends of the oblong hole abut against the cylindrical pin, reducing the offset of the punching module 300 during movement.

[0065] In some embodiments, the lower mold base 200 includes a first groove 210 and a second groove 220 extending along a second direction Y. The first groove 210 is recessed from the surface of the lower mold base 200 toward the upper mold base 100 in a direction opposite to the upper mold base 100. The second groove 220 is recessed from the inner wall surface of the first groove 210 along the first direction X. The drive block structure 410 includes a drive block body 413 and a sliding block 414. The sliding block 414 is connected to the drive block body 413. The body portion of the sliding block 414 is located in the first groove 210, and the sliding block 414 is located in the second groove 220.

[0066] Specifically, the first groove 210 is recessed from the surface of the lower mold base 200 toward the upper mold base 100 in the direction opposite to the upper mold base 100. The body of the sliding block 414 is located in the first groove 210. The inner walls on both sides of the first groove 210 restrict the displacement of the body of the sliding block 414 in the first direction X, which is equivalent to providing a linear track for the driving block body 413 in the second direction Y, ensuring that the driving block body 413 moves along the same path and avoiding the sliding deviation of the driving block body 413.

[0067] The second groove 220 is recessed along the first direction X from the inner wall surface of the first groove 210. The sliding block 414 is located in the second groove 220. When the driving block body 413 is affected by the reaction force of the guide slope or vibration, and moves in the first direction X, the inner wall of the second groove 220 restricts the side of the sliding block 414, preventing the driving block body 413 from shifting in the first direction X, and further improving the stability of the punching module 300.

[0068] In some embodiments, the drive mechanism 400 further includes a power component 420, which is connected to the lower mold base 200 and is drively connected to the drive block structure 410 for driving the drive block structure 410 to move. The power component 420 is connected to the lower mold base 200, and its operating status can be observed without disassembly, reducing unnecessary disassembly work.

[0069] In some examples, the power component 420 is used to provide driving force to the drive block structure 410. The power component 420 can be a cylinder, hydraulic cylinder, etc. The drive block structure 410 is connected to the power output end of the power component 420 to ensure that the motion stroke of the drive structure is error-free.

[0070] In some other examples, the power component 420 can also be a rack and pinion structure, which will not be described in detail here.

[0071] In some embodiments, the punching module 300 includes a movable block 330 and a punching member 340. The movable block 330 is slidably connected to the upper die base along the first direction X. The punching member 340 is connected to the end of the movable block 330 away from the drive mechanism 400, that is, the punching member 340 is a punch. The axial direction of the punch is inclined relative to the first direction X, and the punching surface of the punch is inclined downward. When the punching assembly moves along the first direction X, the punch can be displaced in the vertical direction relative to the workpiece 340 to be punched, thereby completing the punching.

[0072] Specifically, the operator can directly observe the contact state between the punched part 340 and the part to be punched 340. For example, when the cutting edge of the punched part 340 is partially cracked, it will cause a serrated defect on the edge of the part to be punched 340 after stamping, which can be directly detected by the operator visually. The wear of the punched part 340 and the connection deviation of the moving block 330 can be directly judged by the punching effect and the operator's visual observation, which improves the visibility of the punching die.

[0073] In some examples, the upper mold base 100 is provided with a slide groove, and the movable block 330 is provided with a slider. The slider and the slide groove cooperate to ensure that the movable block 330 moves accurately along the first direction X.

[0074] In some other examples, guide rollers are provided on both sides of the movable block 330. The guide rollers further limit the offset of the movable block 330 to avoid excessive burrs on the workpiece 340 during the punching process due to the offset of the movable block 330.

[0075] In some examples, the punch 340 is a punch, which is detachably connected to the end of the movable block 330 away from the drive mechanism 400; for example, the punch 340 is connected to the movable block 330 by bolts.

[0076] In some embodiments, the punching module 300 further includes a reset member 350, which is disposed between the movable block 330 and the upper die holder 100. The reset member 350 is used to generate a reset force on the movable block 330 along the first direction X. The drive assembly drives the punching module 300 to move to the left along the first direction X. The punching module 300 punches the workpiece 340. After the punching is completed, the drive assembly resets and no longer contacts the punching module 300. The reset member 350 generates a force to the right along the first direction X on the punching module 300, thereby pushing the punching module 300 to reset.

[0077] Specifically, the reset component 350 is located between the movable block 330 and the upper die holder 100, exposed to the operator's field of vision. The status of the punching die 300 and the reset effect of the movable block 330 can be directly observed. If the movable block 330 is not reset properly, the cause can be quickly located by observing the status of the reset component 350 and the position of the movable block 330. Unlike traditional dies, it is not necessary to disassemble other adjacent parts first and then check the internal reset component 350, which speeds up the maintenance time and improves the working efficiency of the stamping die.

[0078] In some examples, the reset element 350 is a nitrogen spring, which is positioned in the middle of the movable block 330 to provide driving force for the reset of the movable block 330.

[0079] In some other examples, the reset element 350 may also be a cylinder that provides a reset force to the movable block 330 along the first direction X.

[0080] In some embodiments, the punching module 300 further includes a pressure member 360 and an elastic member 370. The pressure member 360 is disposed around the punching member 340, and the elastic member 370 is connected between the pressure member 360 and the movable block 330. The pressure member 360 is used to press the workpiece 340 to be punched. The pressure member 360 is disposed around the punching member 340 to form an enclosing structure, ensuring that the workpiece 340 to be punched can be pressed from all sides before punching. The elastic member 370 is connected between the pressure member 360 and the movable member. During operation, the pressure member 360 first contacts and presses the workpiece 340 to be punched, preventing the material from shifting during the punching process. As the movable block 330 continues to move, the elastic member 370 is compressed, and the punching member 340 then completes the punching action.

[0081] In some examples, the clamping element 360 has a ring-shaped encircling structure, which is suitable for punching workpieces with regular shapes such as circles and rings. The outer diameter of the clamping element 360 is larger than the area to be punched, ensuring that the clamping range covers the area affected by punching stress.

[0082] In some examples, the contact surface between the pressure plate 360 ​​and the part to be stamped is also provided with anti-slip texture. The anti-slip texture increases the friction with the material and prevents lateral displacement.

[0083] In some examples, the clamping element 360 is made of wear-resistant alloy and its surface is nitrided to improve wear resistance, thus preventing the clamping force from decreasing due to wear on the contact surface between the clamping element 360 and the part to be pressed after long-term use.

[0084] In some other examples, the pressure member 360 can also be a rectangular frame structure to avoid uneven clamping force caused by tilting of the pressure member 360.

[0085] In some examples, the elastic element 370 can be a spring, with its two ends engaging with the movable block 330 and the pressure element 360 respectively, and secured by snap rings to prevent the spring from falling off during compression or rebound.

[0086] In some other examples, the elastic element 370 can also be a polyurethane elastomer, which can adaptively adjust the distribution of clamping force according to the part to be stamped, avoiding localized damage.

[0087] It is worth mentioning that the motion stroke and force calculations throughout the entire stamping die movement process require precise simulation by the designer; otherwise, the smooth operation of this stamping die cannot be achieved. This invention's stamping die can also be applied to other similar sheet metal part switching processes, reducing the number of dies and lowering costs.

[0088] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A stamping die, characterized in that, include: Upper mold base (100); Lower mold base (200); A punching module (300) is disposed between the upper die holder (100) and the lower die holder (200), and the punching module (300) is slidably connected to the upper die holder (100) along a first direction (X), the first direction (X) being perpendicular to the arrangement direction of the upper die holder (100) and the lower die holder (200); A drive mechanism (400) is connected to the lower die holder (200) and located on one side of the punching module (300) in the first direction (X). The drive mechanism (400) is used to drive the punching module (300) to move.

2. The stamping die according to claim 1, characterized in that, The driving mechanism (400) includes a driving block structure (410), which is slidably connected to the lower mold base (200) along a second direction (Y), the second direction (Y) being perpendicular to the first direction (X). The drive block structure (410) includes a first guide slide (411), and the punching module (300) includes a second guide slide (310). The movement of the drive block structure (410) enables the first guide slide (411) and the second guide slide (310) to cooperate and push the punching module (300) to move.

3. The stamping die according to claim 2, characterized in that, At least one of the first guide slide (411) and the second guide slide (310) is a guide slide slope, which is inclined relative to the second direction (Y).

4. The stamping die according to claim 3, characterized in that, The drive block structure (410) further includes a first limiting part (412), and the punching module (300) includes a second limiting part (320). The first limiting part (412) is located on the side of the second limiting part (320) close to the drive mechanism (400) to limit the drive block structure (410) in the second direction (Y).

5. The stamping die according to claim 4, characterized in that, The first limiting part (412) includes a connecting plate (4121) and a limiting plate (4122). The connecting plate (4121) is connected to the first guide slide part (411), and the limiting plate (4122) is connected to the end of the connecting plate (4121) away from the first guide slide part (411) and located on one side of the connecting plate (4121) in the second direction (Y).

6. The stamping die according to claim 5, characterized in that, The lower mold base (200) includes a first groove (210) and a second groove (220) extending along the second direction (Y). The first groove (210) is recessed from the surface of the lower mold base (200) toward the upper mold base (100) in a direction opposite to the upper mold base (100). The second groove (220) is recessed from the inner wall surface of the first groove (210) along the first direction (X). The drive block structure (410) includes a drive block body (413) and a sliding block (414). The sliding block (414) is connected to the drive block body (413). The body portion of the sliding block (414) is located in the first groove (210), and the sliding block (414) is located in the second groove (220).

7. The stamping die according to claim 6, characterized in that, The drive mechanism (400) further includes a power component (420), which is connected to the lower mold base (200). The power component (420) is connected to the drive block structure (410) for driving the drive block structure (410) to move.

8. The stamping die according to any one of claims 1-7, characterized in that, The punching module (300) includes a movable block (330) and a punching component (340). The movable block (330) is slidably connected to the upper die base (100) along the first direction (X). The punching component (340) is connected to one end of the movable block (330) away from the drive mechanism (400).

9. The stamping die according to claim 8, characterized in that, The punching module (300) also includes a reset member (350), which is disposed between the movable block (330) and the upper die holder (100). The reset member (350) is used to generate a reset force on the movable block (330) along the first direction (X).

10. The stamping die according to claim 9, characterized in that, The punching module (300) further includes a pressure member (360) and an elastic member (370). The pressure member (360) is arranged around the punching part (340), and the elastic member (370) is connected between the pressure member (360) and the movable block (330). The pressure member (360) is used to press the punching part (340) tightly.

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