Stamping die for power supply cover plate for graphics card

Abstract

The utility model discloses a power supply cover plate stamping die for a display card. The power supply cover plate stamping die comprises an upper die assembly, a lower die assembly, a punching punch, a chamfering punch and a trimming punch. The upper die assembly is sequentially provided with an upper die base, an upper padding plate, a stopping plate and an upper stripping plate from top to bottom, the upper die base is suitable for being connected with a stamping machine, a plurality of guide columns are arranged on the bottom face of the upper padding plate, and the upper stripping plate and the stopping plate are both arranged on the guide columns in a penetrating mode and can slide in the length direction of the guide columns. And an upper die spring is connected between the upper backing plate and the upper stripping plate. The lower die assembly is sequentially provided with a lower die base, a lower cushion plate and a lower die plate from bottom to top, a plurality of guide sleeves are arranged on the lower die plate, and the guide sleeves correspond to the guide columns one to one. The die is reasonable in structural design, is suitable for batch production of high-precision stamping parts, and has important industrial application value.

Description

Technical Field

[0001] This utility model relates to the field of stamping dies, specifically to a stamping die for a power supply cover plate for a graphics card. Background Technology

[0002] In existing technologies, the machining of certain precision products typically relies on CNC machining centers to ensure high accuracy and surface quality. However, CNC machining is costly and inefficient, making it difficult to meet the demands of mass production. Therefore, the industry is exploring the use of stamping dies to replace CNC machining in order to reduce costs and improve production efficiency.

[0003] However, traditional stamping dies have some technical problems. Traditional stamping dies use fast wire EDM, which makes the cut surface of the product prone to burrs, failing to meet the requirements of high surface quality. In addition, the control of the punching clearance is not precise enough, resulting in an uneven cut surface, affecting the appearance and performance of the product. At the same time, after punching and chamfering, the product's one-time cutting edge falling off can cause the inner hole to be deformed, seriously affecting the product quality.

[0004] Therefore, it is necessary to make further improvements to the existing technology. Utility Model Content

[0005] This utility model aims to at least partially solve one of the technical problems in the related art. Therefore, the purpose of this utility model is to provide a stamping mold for a power supply cover plate for a graphics card.

[0006] To achieve the above objectives, a power supply cover stamping die for a graphics card according to an embodiment of the present invention includes an upper die assembly, a lower die assembly, a punching punch, a chamfering punch, and a trimming punch.

[0007] The upper die assembly is provided with an upper die base, an upper pad, a stop plate and an upper ejector plate in sequence from top to bottom. The upper die base is suitable for connecting to a stamping machine. The bottom surface of the upper pad is provided with multiple guide posts. The upper ejector plate and the stop plate are both inserted through the guide posts and can slide along the length of the guide posts. An upper die spring is connected between the upper pad and the upper ejector plate.

[0008] The lower mold assembly consists of a lower mold base, a lower pad, and a lower template, arranged from bottom to top. The lower template has multiple guide sleeves, and the multiple guide sleeves and multiple guide posts correspond one-to-one. When the upper mold moves down, the multiple guide posts are inserted into the guide sleeves one-to-one.

[0009] The punch is located on the bottom surface of the upper pad, and its lower end passes through the stop plate and the upper release plate to punch holes in the material.

[0010] The chamfering punch is located on the bottom surface of the upper pad plate, and its lower end passes through the stop plate and the upper release plate to chamfer the hole.

[0011] The cutting punch is located on the bottom surface of the upper pad, and its lower end passes through the stop plate and the upper release plate to cut the material.

[0012] In addition, a stamping die for a power supply cover plate for a graphics card according to the above embodiments of this utility model may also have the following additional technical features:

[0013] According to one embodiment of the present invention, the lower template is provided with a punching insert, and the punching insert and the punching punch are arranged opposite to each other to cooperate with the punching punch to complete the punching.

[0014] According to one embodiment of the present invention, the lower template is provided with a cutting edge insert, which is disposed opposite to the cutting edge punch to cooperate with the cutting edge punch to complete the cutting edge.

[0015] According to one embodiment of the present invention, the bottom surface of the upper pad is provided with an upper clamping plate for fixing the punching punch, the chamfering punch and the trimming punch on the upper pad.

[0016] According to one embodiment of the present invention, a floating pin is provided on the lower pad plate, the floating pin is movably inserted into the lower template, and a floating spring is provided in the lower mold base, the upper end of the floating spring is connected to the lower end of the floating pin.

[0017] According to one embodiment of the present invention, the upper release plate is provided with a connecting hole, and the connecting hole and the buoyancy pin are opposite each other to cooperate with the buoyancy pin to fix the material.

[0018] According to one embodiment of the present invention, the upper stripping plate is provided with a positioning pin, and the lower template is provided with an insertion hole. The insertion hole and the positioning pin are arranged opposite to each other so that the positioning pin can pass through the material and be inserted into the insertion hole after the upper stripping plate moves down.

[0019] According to one embodiment of the present invention, the lower pad is provided with a liftable ejector pin, and the lower mold base is provided with an ejector spring. The upper end of the ejector spring is connected to the tail end of the ejector pin to eject the molded product.

[0020] According to one embodiment of the present invention, a limiting block is provided on the lower template, and the upper end of the limiting block protrudes from the lower template to limit the stroke of the upper ejector plate.

[0021] According to an embodiment of this utility model, a stamping die for a power supply cover plate for a graphics card is provided. The guide posts of the upper die assembly and the guide sleeves of the lower die assembly cooperate in a one-to-one correspondence, ensuring precise guidance of the upper die assembly during downward movement. This avoids die misalignment or skew, improving the accuracy and stability of the stamping process. The die integrates a punching punch, a chamfering punch, and a trimming punch, enabling multiple processes such as punching, chamfering, and trimming to be completed in one die. This significantly improves production efficiency and reduces process changeover time and costs. Through a precisely designed blanking gap and split-cutting process, the die effectively avoids the problems of internal hole flanging deformation and burrs on the cut surface during traditional stamping processes, improving product quality and appearance consistency. This die has a reasonable structural design, is suitable for the mass production of high-precision stamped parts, and has significant industrial application value.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this utility model;

[0025] Figure 2 This is a cross-sectional view of the overall structure in an embodiment of this utility model;

[0026] Figure 3 This is a schematic diagram of the overall structural changes in an embodiment of this utility model.

[0027] Icon labels:

[0028] Upper mold component 10;

[0029] Upper mold base 11;

[0030] Upper pad 12;

[0031] Guide column 121;

[0032] Upper mold spring 122;

[0033] Stop plate 13;

[0034] Upper detachment plate 14;

[0035] Positioning pin 141;

[0036] Socket 142;

[0037] 15 punch;

[0038] Chamfering punch 16;

[0039] Trimming punch 17;

[0040] Upper clamp 18;

[0041] Lower mold assembly 20;

[0042] Lower mold base 21;

[0043] Lower pad 22;

[0044] Template 23;

[0045] 231 punch inserts;

[0046] Cutting edge insert 232;

[0047] Guide sleeve 24;

[0048] Float pin 25;

[0049] Floating spring 251;

[0050] Connection hole 252;

[0051] 26 thimbles;

[0052] Ejector spring 261;

[0053] Limit block 27.

[0054] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0055] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein 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 with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0056] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0057] 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 one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0058] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0059] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature 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 includes the first feature 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.

[0060] The following describes in detail, with reference to the accompanying drawings, a stamping mold for a power supply cover plate for a graphics card according to an embodiment of the present invention.

[0061] Reference Figures 1 to 3 As shown, a power supply cover stamping die for a graphics card provided according to an embodiment of the present utility model includes an upper die assembly 10, a lower die assembly 20, a punching punch 15, a chamfering punch 16, and a trimming punch 17.

[0062] The upper die assembly 10 is provided from top to bottom with an upper die base 11, an upper pad 12, a stop plate 13, and an upper ejector plate 14. The upper die base 11 is adapted to connect to a stamping machine. The bottom surface of the upper pad 12 is provided with multiple guide posts 121. The upper ejector plate 14 and the stop plate 13 are both inserted through the guide posts 121 and can slide along the length of the guide posts 121. An upper die spring 122 connects the upper pad 12 and the upper ejector plate 14. It should be noted that in the initial state, there is a certain gap between the stop plate 13 and the upper clamping plate 18 to allow the upper ejector plate to move.

[0063] The lower mold assembly 20 is provided with a lower mold base 21, a lower pad 22 and a lower template 23 from bottom to top. The lower template 23 is provided with a plurality of guide sleeves 24, and the plurality of guide sleeves 24 and the plurality of guide posts 121 correspond one-to-one. When the upper mold moves down, the plurality of guide posts 121 are inserted into the guide sleeves 24 one-to-one.

[0064] The punch 15 is located on the bottom surface of the upper pad 12, and its lower end passes through the stop plate 13 and the upper release plate 14 to punch holes in the material.

[0065] The chamfering punch 16 is disposed on the bottom surface of the upper pad plate 12, and its lower end passes through the stop plate 13 and the upper release plate 14 to chamfer the hole.

[0066] The cutting punch 17 is located on the bottom surface of the upper pad 12, and its lower end passes through the stop plate 13 and the upper release plate 14 to cut the material.

[0067] Based on the above, the guide posts 121 of the upper die assembly 10 and the guide sleeves 24 of the lower die assembly 20 are matched one-to-one, ensuring precise guidance of the upper die assembly 10 during its downward movement. This avoids die misalignment or skew, improving the accuracy and stability of stamping. The die integrates a punching punch 15, a chamfering punch 16, and a trimming punch 17, enabling multiple processes such as punching, chamfering, and trimming to be completed in one die set. This significantly improves production efficiency and reduces process changeover time and costs. Through a precisely designed blanking clearance and split-cutting process, the die effectively avoids the problems of internal hole flanging deformation and burrs on the cut surface during traditional stamping processes, improving product quality and appearance consistency. The die structure is rationally designed and suitable for mass production of high-precision stamped parts, possessing significant industrial application value.

[0068] Preferably, in one embodiment of the present invention, the lower template 23 is provided with a punching insert 231, and the punching insert 231 and the punching punch 15 are arranged opposite to each other to cooperate with the punching punch 15 to complete the punching.

[0069] Thus, the relative arrangement of the punching insert 231 and the punching punch 15 ensures the precision of the punching operation. This design helps reduce deviations during the punching process, thereby improving product quality and consistency. Due to the precise fit between the punching insert 231 and the punching punch 15, the punching speed is increased, thereby improving overall production efficiency. This is particularly important in large-scale production environments, as it can significantly reduce production costs.

[0070] Preferably, in one embodiment of the present invention, the lower template 23 is provided with a cutting insert 232, which is disposed opposite to the cutting punch 17 to cooperate with the cutting punch 17 to complete the cutting.

[0071] Thus, the relative arrangement of the cutting insert 232 and the cutting punch 17 ensures the accuracy of the cutting operation, helps to reduce errors in the cutting process, and makes the product edges flatter and smoother, meeting higher quality requirements.

[0072] Preferably, in one embodiment of the present invention, the bottom surface of the upper pad 12 is provided with an upper clamping plate 18 for fixing the punching punch 15, the chamfering punch 16 and the trimming punch 17 on the upper pad 12.

[0073] Thus, the upper clamping plate 18 firmly fixes the punching punch 15, chamfering punch 16, and trimming punch 17 to the upper backing plate 12, ensuring that these punches will not loosen or shift during the stamping process, thereby improving the overall stability of the mold and ensuring the smooth progress of the stamping operation. The design of the upper clamping plate 18 makes it easier to replace the punching punch 15, chamfering punch 16, and trimming punch 17, thereby improving the flexibility of the mold. When it is necessary to produce products of different specifications or types, operators can quickly change the punches to adapt to new production needs.

[0074] Preferably, in one embodiment of the present invention, the lower pad 22 is provided with a floating pin 25, the floating pin 25 is movably inserted into the lower template 23, and the lower mold base 21 is provided with a floating spring 251, the upper end of the floating spring 251 is connected to the lower end of the floating pin 25.

[0075] Thus, the floating pin 25 can float up and down during the stamping process. This floating property helps to better adapt to and compensate for the deformation of the material during the stamping process, thereby ensuring the accuracy of the stamped parts. The combined use of the floating pin 25 and the floating spring 251 makes the stamping process smoother and reduces stamping errors caused by material deformation or die wear.

[0076] Preferably, in one embodiment of the present invention, the upper release plate is provided with a floating connection hole 252, and the floating connection hole 252 and the floating pin 25 are opposite each other to cooperate with the floating pin 25 to fix the material.

[0077] Thus, the cooperation between the floating connection hole 252 and the floating pin 25 allows the material to be firmly fixed during the stamping process, preventing the material from moving or shifting, thereby improving the accuracy and consistency of the stamped parts.

[0078] Preferably, in one embodiment of the present invention, the upper ejector plate 14 is provided with a positioning pin 141, and the lower template 23 is provided with an insertion hole 142. The insertion hole 142 and the positioning pin 141 are arranged opposite to each other so that the positioning pin 141 can pass through the material and be inserted into the insertion hole 142 after the upper ejector plate 14 moves down.

[0079] Thus, the cooperation between the positioning pin 141 and the insertion hole 142 ensures precise positioning of the material during the stamping process, preventing material offset or misalignment, thereby improving the accuracy and consistency of the stamped parts. Stable positioning helps reduce errors during the stamping process and improves the overall quality of the product.

[0080] Preferably, in one embodiment of the present invention, the lower pad 22 is provided with a liftable ejector pin 26, and the lower mold base 21 is provided with an ejector spring 261. The upper end of the ejector spring 261 is connected to the tail end of the ejector pin 26 to eject the molded product.

[0081] Thus, through the cooperation of ejector pin 26 and ejection spring 261, automatic ejection of the product is achieved, reducing the need for manual operation and improving the automation level of the production line. The automatic ejection function shortens the time for the product to be removed from the mold, speeds up the production pace, and thus significantly improves production efficiency.

[0082] Preferably, in one embodiment of the present invention, a limiting block 27 is provided on the lower template 23, the upper end of the limiting block 27 protruding from the lower template to limit the stroke of the upper ejector plate 14.

[0083] Thus, the design of the limit block 27 effectively prevents the upper ejector plate 14 from descending excessively during the stamping process, avoiding unnecessary collisions and damage between mold components and improving the overall safety of the mold. The presence of the limit block 27 simplifies the operation process; operators do not need to constantly monitor the stroke of the upper ejector plate 14, as the limit block 27 automatically limits its stroke, reducing operational difficulty and error rate.

[0084] It should be noted that the stamping of the power supply cover plate for the graphics card by this mold is not a one-time process. During the stamping process, the material enters the mold from one side. As the material moves, the steps of punching positioning holes, pre-punching holes, punching chamfers, punching rivet holes, trimming edges, and separating the product are performed in sequence. This multi-step stamping process helps to ensure the accuracy of the product.

[0085] The working process of this mold is as follows:

[0086] As the punch press descends, the guide pin 121 in the upper clamping plate 18 inserts into the guide sleeve 24 in the lower die 23 to align the upper and lower dies. The punch press continues to descend, and the positioning pin 141 of the upper ejector plate 14 inserts into the insertion hole 142 in the material to fix its position. The upper ejector plate 14 contacts the material and, as the punch press continues to descend, gradually presses the material down to contact the lower die 23. The spring force of the floating pin 25 in the lower die is less than that of the upper die spring 122, so it also presses down until the material contacts the lower die 23. At this point, the upper ejector plate 14 has descended to its designated position. The upper clamping plate 18 continues to descend under the action of the punch press. During the descent of the upper clamping plate 18, the punching punch 15, chamfering punch 16, and trimming punch 17, along with the punching insert 231 and trimming insert 232 in the lower die 23, complete the corresponding processes in the strip diagram, such as punching, chamfering, and product separation, until the upper clamping plate 18 is in complete contact with the stop plate without gap. At this point, the descent process ends. After the process is completed, the punch press begins to rise and drives the upper die. The punching punch 15, chamfering punch 16 and trimming punch 17 in the upper clamping plate 18 are pulled out from the punching insert 231 and trimming insert 232 of the lower die plate 23 under the pressure of the upper die spring 122. As the punch press continues to rise, it drives the upper stripper plate 14 to rise. The material also returns to its original state with the floating pin 25 and floating spring 251 of the lower die plate 23 and completes one punch under the action of the feeder. After the punching process in the process step diagram, the production of the entire product is finally completed.

[0087] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0088] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A stamping die for a power supply cover plate for a graphics card, characterized in that, include: The upper die assembly includes, from top to bottom, an upper die base, an upper pad, a stop plate, and an upper ejector plate. The upper die base is adapted to connect to a stamping machine. The bottom surface of the upper pad is provided with multiple guide posts. The upper ejector plate and the stop plate are both inserted through the guide posts and can slide along the length of the guide posts. An upper die spring connects the upper pad and the upper ejector plate. The lower mold assembly includes a lower mold base, a lower pad, and a lower template arranged sequentially from bottom to top. The lower template is provided with multiple guide sleeves, and the multiple guide sleeves and multiple guide posts correspond one-to-one. When the upper mold moves down, the multiple guide posts are inserted into the guide sleeves one-to-one. A punching punch is provided on the bottom surface of the upper pad plate, and its lower end passes through the stop plate and the upper stripping plate to punch holes in the material. A chamfering punch is provided on the bottom surface of the upper pad plate, and its lower end passes through the stop plate and the upper release plate to chamfer the hole; A cutting punch is provided on the bottom surface of the upper pad plate, and its lower end passes through the stop plate and the upper stripping plate to cut the material.

2. The stamping die for a power supply cover plate for a graphics card according to claim 1, characterized in that, The lower template is provided with a punching insert, which is arranged opposite to the punching head to cooperate with the punching head to complete the punching.

3. The stamping die for a power supply cover plate for a graphics card according to claim 1, characterized in that, The lower template is provided with a cutting insert, which is arranged opposite to the cutting punch to cooperate with the cutting punch to complete the cutting.

4. The stamping die for a power supply cover plate for a graphics card according to claim 1, characterized in that, The bottom surface of the upper pad is provided with an upper clamping plate for fixing the punching punch, chamfering punch and trimming punch on the upper pad.

5. The stamping die for a power supply cover plate for a graphics card according to claim 1, characterized in that, The lower pad is provided with a floating pin, which is able to float up and down and passes through the lower template. The lower mold base is provided with a floating spring, and the upper end of the floating spring is connected to the lower end of the floating pin.

6. The stamping die for a power supply cover plate for a graphics card according to claim 5, characterized in that, The upper release plate is provided with a connecting hole, which is opposite to the buoyancy pin to fix the material in place.

7. The stamping die for a power supply cover plate for a graphics card according to claim 1, characterized in that, The upper stripping plate is provided with a positioning pin, and the lower template is provided with an insertion hole. The insertion hole and the positioning pin are arranged opposite to each other so that the positioning pin can pass through the material and be inserted into the insertion hole after the upper stripping plate moves down.

8. The stamping die for a power supply cover plate for a graphics card according to claim 1, characterized in that, The lower pad is provided with a liftable ejector pin, and the lower mold base is provided with an ejector spring. The upper end of the ejector spring is connected to the tail end of the ejector pin to eject the molded product.

9. The stamping die for a power supply cover plate for a graphics card according to claim 1, characterized in that, The lower template is provided with a limiting block, the upper end of which protrudes from the lower template to limit the travel of the upper ejector plate.

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