Stamping die for negative angle plate
Through the design of guide components and reset components, the mold release of negative angle plates is achieved, which solves the problem of difficult demolding of negative angle plates during stamping, improves stamping quality and reduces mold wear.
Patent Information
- Application Number
- CN202422389105.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-30
AI Technical Summary
Negative angle plates are prone to hold the mold tightly during stamping, which leads to difficulty in demolding, affects stamping quality and efficiency, and aggravates mold wear.
The stamping mold design is designed with guide assembly and reset assembly. Through the coordination of guide block and guide block, the upper mold body moves horizontally when moving in the vertical direction. The mating reset assembly realizes horizontal movement during the demolding process, avoiding the mold directly carrying the plates and achieving easy demolding.
It effectively solves the problem of demolding of negative angle plates, improves stamping quality and efficiency, and reduces mold wear.
Smart Images
Figure CN223129187U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of stamping dies, and particularly to a stamping die for negative angle plates. Background Art
[0002] A stamping die is a special process equipment for stamping processing, and its main function is to process materials (metal or non-metal) into parts or semi-finished products. Stamping is a precision machining method that applies pressure to the material through a die installed on a press, causing the material to separate or plastically deform, thereby obtaining parts with the required shape and specifications.
[0003] In the field of stamping, some parts have negative angles, and the stamping of this type of plate has always been a difficult point in the industry. The main reason is that the plate is prone to clamping the die in the negative angle area, resulting in difficult demolding, which in turn affects the stamping quality and efficiency, and at the same time exacerbates the wear of the die. Summary of the Utility Model
[0004] The purpose of this application is to provide a stamping die for negative angle plates to solve at least one of the above technical problems.
[0005] To solve the above technical problems, this application provides a stamping die for negative angle plates, which is used to stamp a first plate. After being formed, the cross-section of the first plate is in a Z shape, and it includes an upper die assembly and a lower die assembly;
[0006] A fold angle is formed at one bottom edge of the first plate;
[0007] The lower die assembly includes a first fixed seat and a lower die body slidably arranged on the first fixed seat along a first direction. The lower die body includes a first bottom block and a first side block. The connection between the first bottom block and the first side block forms a first bending point, and a second bending point is formed on the side of the first bottom block away from the first side block;
[0008] The upper die assembly includes a second fixed seat and an upper die body arranged on the second fixed seat. The upper die body includes a second bottom block and a second side block. The connection between the second bottom block and the second side block is adapted to the shape of the second bending point, and the side of the second bottom block away from the second side block is adapted to the first bending point;
[0009] The first bending point and the second bending point are respectively adapted to two corners of the first plate;
[0010] It further includes a guiding component and a first reset component. The guiding component includes a first guiding block provided on the upper die component and a second guiding block provided on the lower die component; when the upper die component approaches the lower die component in the vertical direction, the guiding component drives the upper die body to move in a first direction; the first reset component is provided on the upper die component and drives the upper die body to reset in the first direction.
[0011] In the above implementation process, the staff first places the first plate to be formed between the upper die component and the lower die component, and then the upper die component moves downward to approach the lower die component. When it moves downward to a certain extent, the first guiding block contacts the second guiding block, and then they interact to drive the upper die body to move in the first direction. Further, it can be understood as moving closer to the second bending point. In this process, the upper die body not only has a downward movement but also has a lateral movement. Finally, under the extrusion of the upper die body and the lower die body, the pressing and forming of the first plate are completed. Since there is a negative angle formed on the first plate, if it is a conventional stamping die, the plate will be lifted during the vertical upward movement. However, in this solution, when the upper die component moves upward, under the action of the reset component, it will drive the upper die body to reset in the first direction, that is, to move laterally. In this way, the upper die body not only has a single vertical movement but also has a lateral movement. With the lateral movement, it can avoid directly lifting the first plate by the upper die body, but instead realizes good demolding, and stably realizes the stamping and demolding of the plate with a negative angle in sequence; this solution, through the cooperation of the first guiding block and the second guiding block, further enables the upper die body to move laterally. In this way, when performing stamping, it can have a simultaneous stamping action in both the lateral and longitudinal directions. Subsequently, further cooperating with the reset component, during the demolding process, the upper die body has a lateral movement, enabling the plate with a negative angle to also realize easy demolding, avoiding problems such as difficult demolding and wear of the die.
[0012] Preferably, a first inclined surface is formed on the first guiding block, and a second inclined surface adapted to the first inclined surface is formed on the second guiding block.
[0013] In the above implementation process, when the first inclined surface contacts the second inclined surface, their relative longitudinal movement will further drive the upper die body to have a lateral movement.
[0014] Preferably, a first vertical surface connected to the first inclined surface is formed on the first guiding block, and a second vertical surface connected to the second inclined surface is formed on the second guiding block.
[0015] In the above implementation process, the upper die body first moves along the vertical direction until the first inclined plane and the second inclined plane come into contact. At this time, the upper die body also has a lateral movement. As it moves to the end points of the first inclined plane and the second inclined plane, the first vertical plane and the second vertical plane come into contact. Then, the upper die body has a single vertical downward movement, thus better completing the stamping forming.
[0016] Preferably, the lower die body is slidably disposed on the first fixing base along the vertical direction. A second reset assembly is provided on the first fixing base, and the second reset assembly is used to drive the lower die body to reset along the vertical direction.
[0017] In the above implementation process, when the upper die body moves vertically downward in the second stage, it will cause the second reset assembly to store corresponding potential energy. When demolding, the upper die body first moves vertically upward, then has a combined longitudinal and lateral movement, and finally has a single vertical movement. When it moves vertically upward in the first stage of demolding, the second reset assembly at this time will cause the lower die body to rise synchronously until the first inclined plane and the second inclined plane come into contact with each other. When the upper die body moves further upward, it will have a synchronous lateral movement.
[0018] Preferably, the reset assembly includes a first fixing block provided on the second fixing base. A nitrogen spring is provided on the first fixing block, and the elastic restoring direction of the nitrogen spring is parallel to the first direction.
[0019] Preferably, a plurality of nitrogen springs are provided and arranged at intervals along the second direction.
[0020] The first direction and the second direction are perpendicular to each other.
[0021] In the above implementation process, a plurality of nitrogen springs can improve the bearing capacity, and thus achieve a stable reset function.
[0022] Preferably, a second fixing block is provided on the second fixing base, and the second fixing block is located on the other side of the upper die body relative to the first fixing block.
[0023] A buffer pad is provided on the second fixing block.
[0024] In the above implementation process, when the upper die body resets, the buffer pad plays a buffering role and a limiting role to prevent its reset from overshooting.
[0025] Preferably, a positioning post is provided on the second fixing base, and the positioning post is adapted to abut against the first fixing base.
[0026] In the above implementation process, when the upper die assembly is pressed down to a certain extent, the positioning post will abut against the lower die assembly. At this time, it means that the upper die assembly has been pressed down in place, so as to avoid overtravel of the downward movement of the upper die assembly.
[0027] Compared with the prior art, the beneficial effects of the present application are as follows: Through the cooperation of the first guiding block and the second guiding block, and further enabling the upper die body to move horizontally, a stamping action can be carried out simultaneously in the horizontal and vertical directions during stamping. Subsequently, in further cooperation with the reset assembly, the upper die body has a horizontal movement during the demolding process, enabling the plate with a negative angle to be easily demolded, avoiding the problems of difficult demolding and mold wear. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0029] Figure 1 It is a schematic cross-sectional structure diagram of the formed plate in one embodiment of the present application;
[0030] Figure 2 It is a schematic overall structure diagram of one embodiment of the present application;
[0031] Figure 3 is Figure 2 an enlarged structure diagram of part A in
[0032] Figure 4 It is a schematic overall structure diagram of one embodiment of the present application;
[0033] Figure 5 It is a schematic partial structure diagram of one embodiment of the present application.
[0034] Wherein: 10, the first plate; 11, the first bending point; 12, the second bending point; 13, the folding angle; 20, the lower die assembly; 21, the first fixing seat; 22, the lower die body; 221, the first side block; 222, the first bottom block; 30, the upper die assembly; 31, the second fixing seat; 32, the upper die body; 321, the second side block; 322, the second bottom block; 41, the first guiding block; 42, the second guiding block; 51, the first fixing block; 52, the nitrogen spring; 61, the second fixing block; 62, the buffer pad; 71, the second reset assembly; 81, the positioning post; 91, the slider; 92, the slide seat. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0035] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.
[0036] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.
[0037] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "mounted" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection, or a connection capable of mutual communication; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0038] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "side", "front", "rear", etc. is the orientation or positional relationship based on the installation, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.
[0039] In the description of the present application, it should be noted that the term "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone.
[0040] It should also be noted that in the embodiments of the present application, the same reference numeral represents the same component or the same part. For the same parts in the embodiments of the present application, only one of the parts or components may be marked with the reference numeral in the figure. It should be understood that for other identical parts or components, the reference numeral also applies.
[0041] To further understand the utility model content, features and effects of the present application, the following embodiments are cited and described in detail in conjunction with the accompanying drawings as follows: Embodiment
[0042] In the field of stamping, some parts have negative angles. Stamping of this type of plate has always been a difficulty in the industry. The main reason is that the plate is easy to hold the mold tightly in the negative angle area, which makes demolding difficult, thereby affecting the stamping quality and stamping efficiency, and also aggravates the wear of the mold. In order to solve the above technical problems, this embodiment provides the following technical solutions:
[0043] For details, see Figures 1-5 , this embodiment provides a stamping die for a negative angle plate, which is used to stamp a first plate. The first plate has a Z-shaped cross section after being formed. For further information, see Figure 1 ,in Figure 1 This is the state diagram of the plate after stamping;
[0044] Specifically, the stamping die provided in this embodiment includes an upper die assembly 30 and a lower die assembly 20;
[0045] Further, a folded corner 13 is formed on a bottom edge of the first plate 10; it is understandable that, see Figure 1 As shown in FIG, the folded corner 13 is folded inwardly laterally. In this case, the upper die assembly will use this as a fulcrum to lift the plate after stamping, thereby making demoulding difficult.
[0046] Specifically, the lower mold assembly 20 includes a first fixed seat 21 and a lower mold body 22 slidably disposed on the first fixed seat 21 along a first direction, the lower mold body 22 includes a first bottom block 222 and a first side block 221, the first bottom block 222 and the first side block 221 are connected to form a first bending point 11, and a second bending point 12 is formed on a side of the first bottom block 222 away from the first side block 221;
[0047] Furthermore, the upper mold assembly 30 includes a second fixed seat 31 and an upper mold body 32 disposed on the second fixed seat 31, the upper mold body 32 includes a second bottom block 322 and a second side block 321, the connection between the second bottom block 322 and the second side block 321 is adapted to the shape of the second bending point 12, and the side of the second bottom block 322 away from the second side block 321 is adapted to the first bending point 11;
[0048] Specifically, the first bending point 11 and the second bending point 12 are respectively adapted to the two corners of the first plate 10;
[0049] Specifically, it also includes a guide assembly and a first reset assembly, wherein the guide assembly includes a first guide block 41 provided on the upper mold assembly 30 and a second guide block 42 provided on the lower mold assembly 20; when the upper mold assembly 30 approaches the lower mold assembly 20 in the vertical direction, the guide assembly drives the upper mold body 32 to move in the first direction; the first reset assembly is provided on the upper mold assembly 30 and drives the upper mold body 32 to reset in the first direction;
[0050] In the above solution, the staff first place the first plate 10 to be formed between the upper die assembly 30 and the lower die assembly 20. Subsequently, the upper die assembly 30 moves downward and approaches the lower die assembly 20. When it moves downward to a certain extent, the first guide block 41 contacts the second guide block 42, and then the interaction between them causes the upper die body 32 to move in the first direction. It can be further understood as moving closer to the second bending point 12. During this process, the upper die body 32 not only has a downward movement but also a lateral movement. Finally, under the extrusion of the upper die body 32 and the lower die body 22, the pressing and forming of the first plate 10 are completed. Since a negative angle is formed on the first plate 10, if it is a conventional stamping die, the plate will be lifted during the vertical upward movement. However, in this solution, when the upper die assembly 30 moves upward, under the action of the reset assembly, it will cause the upper die body 32 to reset along the first direction, that is, move laterally. In this way, the upper die body 32 not only moves vertically but also has a lateral movement. With the lateral movement, it can be avoided that the upper die body 32 directly lifts the first plate 10, but rather a good demoulding is achieved, and the stamping and demoulding of the plate with a negative angle are stably realized in sequence; this solution through the cooperation of the first guide block 41 and the second guide block 42, and further enabling the upper die body 32 to move laterally, so that when stamping, there can be a simultaneous stamping action in the lateral and longitudinal directions. Subsequently, further cooperating with the reset assembly, during the demoulding process, the upper die body 32 has a lateral movement, enabling the plate with a negative angle to also achieve easy demoulding, avoiding the problems of difficult demoulding and wearing the die.
[0051] Further, please refer to Figure 5 , a sliding assembly is provided between the upper die body 32 and the second fixed seat 31. The sliding assembly includes a slider 91 and a sliding seat 92; this solution can improve the smoothness of the movement of the upper die body 32 by further setting the sliding assembly.
[0052] Specifically, please refer to Figures 2-3 , a first inclined surface is formed on the first guide block 41, and a second inclined surface adapted to the first inclined surface is formed on the second guide block 42;
[0053] In the above solution, when the first inclined surface contacts the second inclined surface, the relative longitudinal movement between the two will further cause the upper die body 32 to have a lateral movement.
[0054] Specifically, a first vertical surface connected to the first inclined surface is formed on the first guide block 41, and a second vertical surface connected to the second inclined surface is formed on the second guide block 42;
[0055] In the above solution, the upper die body 32 first moves vertically until the first inclined plane and the second inclined plane come into contact. At this time, the upper die body 32 also has a lateral movement. As it moves to the end of the first inclined plane and the second inclined plane, the first vertical plane and the second vertical plane come into contact. Then, the upper die body 32 has a single vertical downward movement, so as to better complete the stamping forming.
[0056] Specifically, the lower die body 22 is slidably arranged on the first fixing seat 21 in the vertical direction. A second reset assembly 71 is arranged on the first fixing seat 21, and the second reset assembly 71 is used to drive the lower die body 22 to reset in the vertical direction.
[0057] In the above solution, when the upper die body 32 moves vertically downward in the second stage, it will cause the second reset assembly 71 to store corresponding potential energy. When demolding, the upper die body 32 first moves vertically upward, then has a combined longitudinal and lateral movement, and finally has a single vertical movement. When it moves vertically upward in the first stage of demolding, the second reset assembly 71 at this time will cause the lower die body 22 to rise synchronously until the first inclined plane and the second inclined plane come into contact with each other. When the upper die body 32 moves further upward, it will have a synchronous lateral movement.
[0058] Specifically, the reset assembly includes a first fixing block 51 arranged on the second fixing seat 31. A nitrogen spring 52 is arranged on the first fixing block 51, and the elastic restoring direction of the nitrogen spring 52 is parallel to the first direction.
[0059] Further, a plurality of nitrogen springs 52 are provided and arranged at intervals along the second direction.
[0060] In one embodiment, the first direction is perpendicular to the second direction.
[0061] In the above solution, the plurality of nitrogen springs 52 can improve the bearing capacity, and thus realize a stable reset function.
[0062] Specifically, a second fixing block 61 is arranged on the second fixing seat 31, and the second fixing block 61 is located on the other side of the upper die body 32 relative to the first fixing block 51.
[0063] Further, a buffer pad 62 is arranged on the second fixing block 61.
[0064] In the above solution, when the upper die body 32 resets, the buffer pad 62 plays a buffering role and a limiting role to prevent its reset overtravel.
[0065] In one embodiment, the second reset assembly 71 includes a nitrogen spring 52.
[0066] Specifically, a positioning post 81 is provided on the second fixed seat 31, and the positioning post 81 is adapted to abut against the first fixed seat 21;
[0067] In the above solution, after the upper die assembly 30 is pressed down to a certain extent, the positioning post 81 will abut against the lower die assembly 20. At this time, it means that the upper die assembly 30 has been pressed down in place, so as to avoid overtravel of the downward movement of the upper die assembly 30.
[0068] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0069] The above description is only a preferred embodiment of the present application, and does not impose any form of limitation on the present application. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present application all belong to the scope of the technical solution of the present application.
Claims
1. A stamping die for negative-angle plate parts, used for stamping a first plate part, and the cross-section of the first plate part is Z-shaped after forming, characterized in that: It includes an upper die assembly and a lower die assembly; A fold angle is formed at a bottom edge of the first plate member; The lower die assembly includes a first fixed seat and a lower die body slidably disposed on the first fixed seat along a first direction. The lower die body includes a first bottom block and a first side block. A first bending point is formed at the junction of the first bottom block and the first side block. A second bending point is formed on a side of the first bottom block away from the first side block; The upper die assembly includes a second fixed seat and an upper die body disposed on the second fixed seat. The upper die body includes a second bottom block and a second side block. The junction of the second bottom block and the second side block is adapted to the shape of the second bending point, and the side of the second bottom block away from the second side block is adapted to the first bending point; The first bending point and the second bending point respectively adapt to two corners of the first plate member; It further includes a guiding assembly and a first resetting assembly. The guiding assembly includes a first guiding block disposed on the upper die assembly and a second guiding block disposed on the lower die assembly; when the upper die assembly approaches the lower die assembly in the vertical direction, the guiding assembly drives the upper die body to move along the first direction; the first resetting assembly is disposed on the upper die assembly and drives the upper die body to reset along the first direction.
2. The stamping die for negative angle plates according to claim 1, characterized in that: A first inclined surface is formed on the first guiding block, and a second inclined surface adapted to the first inclined surface is formed on the second guiding block.
3. The stamping die for negative angle plate parts according to claim 2, characterized in that: A first vertical surface connected to the first inclined surface is formed on the first guiding block, and a second vertical surface connected to the second inclined surface is formed on the second guiding block.
4. The stamping die for negative angle plate parts according to claim 3, characterized in that: The lower die body is slidably disposed on the first fixed seat in the vertical direction. A second resetting assembly is disposed on the first fixed seat, and the second resetting assembly is used to drive the lower die body to reset in the vertical direction.
5. The stamping die for negative angle plates according to claim 1, characterized in that: The resetting assembly includes a first fixed block disposed on the second fixed seat. A nitrogen spring is disposed on the first fixed block, and the elastic restoring direction of the nitrogen spring is parallel to the first direction.
6. The stamping die for negative angle plates according to claim 5, characterized in that: A plurality of nitrogen springs are provided and arranged at intervals along a second direction; The first direction is perpendicular to the second direction.
7. The stamping die for negative angle plates according to claim 5, characterized in that: A second fixed block is disposed on the second fixed seat, and the second fixed block is located on the other side of the upper die body relative to the first fixed block; A buffer pad is disposed on the second fixed block.
8. The stamping die for negative angle plates according to any one of claims 1-7, characterized in that: A positioning post is disposed on the second fixed seat, and the positioning post is adapted to abut against the first fixed seat.