Heat conduction piece punch forming die and punching equipment thereof

Abstract

The utility model provides a heat conduction part punch forming die and punching equipment thereof. The heat conduction piece punch forming die comprises a supporting base, an upper grinding plate and a lower grinding plate, wherein the upper grinding plate and the lower grinding plate are sequentially and detachably arranged on the supporting base in a stacked mode; at least one positioning accommodating hole is formed in the upper grinding plate; at least one forming hole is correspondingly formed in the lower grinding plate; the positioning accommodating holes and the forming holes are arranged in a one-to-one correspondence manner; the forming hole comprises a press-fit forming groove and a containing groove which communicate with each other, and the press-fit forming groove faces the positioning containing hole. The heat conduction piece punch forming die further comprises at least one abrasion-resistant core cylinder. Each wear-resistant core cylinder is arranged in the corresponding press-fit molding groove; and the wear-resistant core cylinder is used for reducing the wear of the lower grinding plate and the upper grinding plate during pressing. According to the heat conduction piece punch forming die, direct contact between material powder and the inner circumferential wall of the press-fit forming groove is avoided through the additionally-arranged wear-resisting core barrel, abrasion to the inner circumferential wall of the press-fit forming groove is avoided, and the service life of the heat conduction piece punch forming die is prolonged.

Description

Technical Field

[0001] The present disclosure relates to the technical field of manufacturing heat conducting parts, and in particular to a heat conducting part stamping die and stamping equipment thereof. Background Art

[0002] Metal heat sink is a common type of heat sink. According to the installation method, metal heat sink can be divided into external metal heat sink and internal metal heat conductor. Compared with external metal heat sink, internal metal heat conductor has smaller volume and higher heat dissipation performance, so it is widely used in some high-end electronic products, such as high-end notebooks.

[0003] Early built-in metal heat conductors included multiple metal heat sinks and multiple cooling layers, each of which was filled between two adjacent metal heat sinks to achieve better heat dissipation performance for high-end electronic products. However, in actual applications, a simple cooling layer cannot achieve the heat dissipation of two metal heat sinks. For this reason, some scholars have made improvements to it, that is, by adding a heat conductor between the two metal heat sinks, the heat dissipation performance of the built-in metal heat conductor is effectively improved.

[0004] Metal copper heat conductors are common heat conductors. Metal copper heat conductors include copper cakes and copper pillars connected to each other. Early metal copper heat conductors were made by first stamping copper powder into copper cakes, and then sintering the copper cakes and copper pillar powders to obtain metal copper heat conductors.

[0005] However, the metal copper heat conductor obtained by sintering has unevenness at the connection between the copper cake and the copper column, which leads to poor connectivity between the two and affects the subsequent assembly. For this reason, a new production method has emerged in the market, such as patent number CN 220782849 U, which discloses a copper column pressing device, which realizes the connection between the copper cake and the copper column by pressing.

[0006] However, although the above-mentioned copper column pressing equipment can effectively solve the problems existing in the sintering method, since the pressing mold of the copper column pressing equipment is generally made of metal material, and the metal copper thermal conductor is also made of metal material, the pressing mold and the metal copper thermal conductor are subject to greater wear, thereby affecting the service life of the pressing mold. Utility Model Content

[0007] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a heat conducting part stamping forming die and stamping equipment thereof which can increase the service life by adding a wear-resistant core barrel plate.

[0008] The purpose of this disclosure is achieved through the following technical solutions:

[0009] A heat conductive component stamping and forming die comprises a support seat, an upper grinding plate and a lower grinding plate, wherein the upper grinding plate and the lower grinding plate are detachably stacked on the support seat in sequence; the upper grinding plate is formed with at least one positioning and receiving hole; the lower grinding plate forms at least one forming hole correspondingly; each of the positioning and receiving holes is arranged in one-to-one correspondence with each of the forming holes; the forming holes comprise a connected pressing and forming groove and a containing groove, and the pressing and forming groove is arranged toward the positioning and receiving hole; the heat conductive component stamping and forming die also comprises at least one wear-resistant core barrel; each of the wear-resistant core barrel is arranged in the corresponding pressing and forming groove; the wear-resistant core barrel is used to reduce the wear of the lower grinding plate and the upper grinding plate during pressing.

[0010] In one of the embodiments, the wear-resistant core barrel is sleeved on the inner wall of the pressing molding groove.

[0011] In one of the embodiments, the inner diameter of the pressing and forming groove is not equal to the inner diameter of the containing groove, and the center line of the pressing and forming groove coincides with the center line of the containing groove.

[0012] In one embodiment, the wear-resistant core barrel includes a wear-resistant cylinder body and a wear-resistant limit cap connected to each other, the wear-resistant cylinder body is formed with a wear-resistant forming hole; the wear-resistant cylinder body is sleeved on the inner wall of the pressing and forming groove and is connected to the wear-resistant limit cap; the wear-resistant limit cap is at least partially protruded from the pressing and forming groove; the wear-resistant limit cap is formed with a wear-resistant material passing cavity connected to the wear-resistant forming hole.

[0013] In one embodiment, a wide-mouthed material receiving cavity is formed at one end of the wear-resistant material passage cavity facing the upper grinding plate; and / or,

[0014] The outer periphery of the wear-resistant limiting cap forms a limiting avoidance portion; and / or,

[0015] The wear-resistant cylinder and the wear-resistant limiting cap are an integrally formed structure; and / or,

[0016] The wear-resistant cylinder extends to the inner wall of the accommodating groove.

[0017] In one of the embodiments, a wide-mouth feeding cavity is formed at one end of the accommodating groove facing away from the positioning receiving hole.

[0018] In one embodiment, the wear-resistant core barrel is one or more of a stainless steel wear-resistant core barrel, an alloy steel wear-resistant core barrel and a ceramic wear-resistant core barrel.

[0019] In one embodiment, the upper grinding plate and / or the lower grinding plate is one of an aluminum plate, an aluminum alloy plate, a stainless steel plate, an alloy steel plate, a ceramic plate and a plastic plate.

[0020] In one embodiment, the support seat is formed with a mounting groove, and the mounting groove is used to accommodate the lower grinding plate; and / or,

[0021] A plurality of first positioning holes are formed at the periphery of the upper grinding plate; and / or,

[0022] A plurality of second positioning holes are formed at the periphery of the lower grinding plate.

[0023] A heat conducting component stamping device comprises the heat conducting component stamping forming die described in any one of the above embodiments.

[0024] Compared with the prior art, the present invention has at least the following advantages:

[0025] Since the upper grinding plate is formed with at least one positioning and receiving hole, the positioning and receiving hole is used to place the powder; the forming hole of the lower grinding plate includes a connected pressing and molding groove and a containing groove, the containing groove is used to place the material cake, and the pressing and molding groove is used to shape and fix the powder on the material cake, and the wear-resistant core barrel is arranged in the corresponding pressing and molding groove. During the pressing and molding process, the additional wear-resistant core barrel avoids direct contact between the powder and the inner circumferential wall of the pressing and molding groove, and avoids wear on the inner circumferential wall of the pressing and molding groove. In addition, the wear-resistant core barrel itself has high wear resistance, which further improves the service life of the lower grinding plate, thereby improving the service life of the stamping and molding mold of the heat conductor, and is particularly suitable for the application of metal heat conductors. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a structural schematic diagram of a stamping die for a heat conducting member according to an embodiment of the present disclosure;

[0028] Figure 2 for Figure 1 A schematic diagram of the structure of the lower grinding plate of the heat conducting component stamping die in one direction is shown;

[0029] Figure 3 for Figure 2 A schematic diagram of the structure of the lower grinding plate in another direction shown;

[0030] Figure 4 for Figure 3 A partial enlarged view shown in the middle A;

[0031] Figure 5 for Figure 4The structural schematic diagram of the wear-resistant core barrel shown;

[0032] Figure 6 It is a schematic diagram of the structure of the heat conducting parts stamping equipment.

[0033] Attached figures: 10, stamping and forming die for heat conducting component; 100, supporting seat; 110, mounting groove; 200, upper grinding plate; 210, positioning and receiving hole; 220, first positioning hole; 300, lower grinding plate; 310, forming hole; 311, pressing and forming groove; 312, containing groove; 312a, wide-mouth feeding cavity; 320, second positioning hole; 400, wear-resistant core barrel; 410, wear-resistant cylinder; 411, wear-resistant forming hole; 420, wear-resistant limiting cap; 421, wear-resistant over-feeding cavity; 422, wide-mouth receiving cavity; 423, limiting and avoiding part; 1, stamping equipment for heat conducting component. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0037] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0038] like Figures 1 to 3As shown, a heat conducting component stamping and forming die 10 of an embodiment includes a support seat 100, an upper grinding plate 200 and a lower grinding plate 300, wherein the upper grinding plate 200 and the lower grinding plate 300 are detachably stacked on the support seat 100 in sequence; the upper grinding plate 200 is formed with at least one positioning and receiving hole 210; the lower grinding plate 300 forms at least one forming hole 310 correspondingly; each of the positioning and receiving holes 210 is arranged in a one-to-one correspondence with each of the forming holes 310; the forming holes 310 include a connected pressing and forming groove 311 and a receiving groove 312, and the pressing and forming groove 311 is arranged toward the positioning and receiving hole 210; the heat conducting component stamping and forming die 10 also includes at least one wear-resistant core barrel 400; each of the wear-resistant core barrel 400 is arranged in the corresponding pressing and forming groove 311; the wear-resistant core barrel 400 is used to reduce the wear of the lower grinding plate 300 and the upper grinding plate 200 during pressing.

[0039] It can be understood that since the upper grinding plate 200 and the lower grinding plate 300 are sequentially detachably stacked on the support seat 100, the lower grinding plate 300 is placed on the support seat 100, and the upper grinding plate 200 is placed on the lower grinding plate 300, so that the operator can disassemble and assemble the upper grinding plate 200 and the lower grinding plate 300; since the upper grinding plate 200 is formed with at least one positioning and receiving hole 210, the positioning and receiving hole 210 is used to place the powder; the lower grinding plate 300 is correspondingly formed with at least one forming hole 310, and since the forming hole 310 of the lower grinding plate 300 includes a connected pressing and forming groove 311 and a receiving groove 312, the receiving groove 312 is used to place the cake, and the pressing and forming groove 311 is used to shape and fix the powder material on the material cake; during the pressing and molding process, the additional wear-resistant core barrel 400 avoids the direct contact between the powder material and the inner peripheral wall of the pressing and molding groove 311, that is, avoids the wear of the inner peripheral wall of the pressing and molding groove 311, and the wear-resistant core barrel 400 itself has high wear resistance, which further improves the service life of the lower grinding plate 300, thereby improving the service life of the heat-conducting component stamping and molding mold 10; and because the wear-resistant core barrel 400 is arranged in the pressing and molding groove 311, the direct contact between the lower grinding plate 300 and the upper grinding plate 200 is avoided, and the wear of the lower grinding plate 300 and the upper grinding plate 200 when pressed is reduced.

[0040] like Figures 2 to 4 As shown, in one embodiment, the wear-resistant core barrel 400 is sleeved on the inner wall of the pressing and forming groove 311, and the pressing and forming groove 311 provides a holding space for the wear-resistant core barrel 400, which is convenient for the operator to disassemble and assemble the wear-resistant core barrel 400 during use.

[0041] In one embodiment, the inner diameter of the pressing and molding groove 311 is not equal to the inner diameter of the containing groove 312, and the center line of the pressing and molding groove 311 coincides with the center line of the containing groove 312, so that the pressing and molding groove 311 and the containing groove 312 form a stepped shape, which facilitates the pressing and molding groove 311 and the containing groove 312 to form a separate cavity, so that the material cake and material powder can be well placed separately in the containing groove 312 and the pressing and molding groove 311.

[0042] like Figure 1 , Figure 2 and Figure 5 As shown, in one embodiment, the wear-resistant core barrel 400 includes a wear-resistant cylinder body 410 and a wear-resistant limiting cap 420 connected to each other, and the wear-resistant cylinder body 410 is formed with a wear-resistant forming hole 411; the wear-resistant forming hole 411 provides a channel for the powder to enter the accommodating groove 312; the wear-resistant cylinder body 410 is sleeved on the inner wall of the pressing and forming groove 311, and is connected to the wear-resistant limiting cap 420, so as to realize the connection between the wear-resistant cylinder body 410 and the pressing and forming groove 311, and facilitate the operator to disassemble and assemble the wear-resistant cylinder body 410; the wear-resistant limiting cap 420 is at least partially protruded from the pressing and forming groove 311 , so that the protruding wear-resistant limiting cap 420 can, on the one hand, realize the fixation of the wear-resistant cylinder 410, and on the other hand, avoid the wear caused by direct contact between the lower grinding plate 300 and the upper grinding plate 200 during pressing, thereby improving the service life of the upper grinding plate 200 and the lower grinding plate 300, thereby improving the service life of the heat-conducting part stamping and forming mold 10; the wear-resistant limiting cap 420 is formed with a wear-resistant material passing cavity 421 connected to the wear-resistant forming hole 411, so that the wear-resistant material passing cavity 421 is correspondingly arranged with the positioning and receiving hole 210 of the upper grinding plate 200, so that the powder can smoothly enter the accommodating groove 312 to complete the pressing and forming operation.

[0043] In one embodiment, a wide-mouthed receiving cavity 422 is formed at one end of the wear-resistant material cavity 421 facing the upper grinding plate 200, and the wide-mouthed receiving cavity 422 is added to facilitate material discharge. Furthermore, the wide-mouthed receiving cavity 422 is funnel-shaped, which effectively prevents the material powder from leaking outward when the material is discharged, and facilitates the smooth discharge of the material powder.

[0044] In one embodiment, the inner wall of the wide-mouthed receiving cavity 422 is smooth, so that the powder can be discharged more smoothly and the adhesion of some powder to the inner wall of the wide-mouthed receiving cavity 422 is reduced.

[0045] like Figure 5As shown, in one of the embodiments, the outer peripheral edge of the wear-resistant limit cap 420 forms a limit avoidance portion 423; on the one hand, the operator can avoid hand injuries during disassembly and assembly, and on the other hand, the limit avoidance portion 423 makes the contact area between the wear-resistant limit cap 420 of the wear-resistant core barrel 400 and the upper wearing plate 200 smaller, thereby reducing the wear of the wear-resistant limit cap 420 when the upper wearing plate 200 is pressed together, thereby increasing the service life of the wear-resistant core barrel 400.

[0046] In another embodiment, the wear-resistant cylinder 410 and the wear-resistant limit cap 420 are an integrally formed structure to improve the firmness of the connection between the wear-resistant cylinder 410 and the wear-resistant limit cap 420 , thereby increasing the service life of the wear-resistant core cylinder 400 .

[0047] Furthermore, in one of the embodiments, the wear-resistant cylinder 410 extends to the inner wall of the receiving groove 312, so that the inner wall of the receiving groove 312 is also provided with a wear-resistant cylinder 410; the wear-resistant cylinder 410 can protect the pressed molding groove 311 while avoiding the wear of the receiving groove 312 by the material cake, thereby improving the service life of the heat conductive part stamping mold 10.

[0048] In one embodiment, the wide-mouth feeding cavity 312 a formed at one end of the receiving groove 312 facing away from the positioning receiving hole 210 makes it easier for the material cake to be placed into the receiving groove 312 .

[0049] In one embodiment, the wear-resistant core barrel 400 is one or more of a stainless steel wear-resistant core barrel 400, an alloy steel wear-resistant core barrel 400, and a ceramic wear-resistant core barrel 400. Since stainless steel, alloy steel, and ceramic have good wear resistance, they can effectively prevent the wear-resistant core barrel 400 from contacting with the material powder, thereby reducing damage to the wear-resistant core barrel 400. Personnel in this field can select an appropriate wear-resistant core barrel 400 according to actual conditions.

[0050] In one embodiment, the upper grinding plate 200 and / or the lower grinding plate 300 is one of an aluminum plate, an aluminum alloy plate, a stainless steel plate, an alloy steel plate, a ceramic plate, and a plastic plate. It can be understood that since the aluminum plate, the aluminum alloy plate, and the plastic plate are light, they are convenient for operators to take; the stainless steel plate, the alloy steel plate, and the ceramic plate have high hardness and wear resistance, thereby increasing the service life of the upper grinding plate 200 and the lower grinding plate 300. Therefore, the staff in this field can select the upper grinding plate 200 or the lower grinding plate 300 that is suitable according to the specific situation.

[0051] In one embodiment, the support seat 100 is formed with a mounting groove 110, and the mounting groove 110 is used to accommodate the lower grinding plate 300. The lower grinding plate 300 is snapped into the mounting groove 110 and can be effectively fixed on the support seat 100 to prevent the lower grinding plate 300 from loosening and deflecting during pressing.

[0052] In one embodiment, a plurality of first positioning holes 220 are formed at the periphery of the upper grinding plate 200, and the first positioning holes 220 are sleeved on the lower grinding plate 300 to ensure the fastening of the upper grinding plate 200 and the lower grinding plate 300 and reduce the loosening of the upper grinding plate 200 and the lower grinding plate 300 during operation.

[0053] In one embodiment, a plurality of second positioning holes 320 are formed at the periphery of the lower grinding plate 300. The second positioning holes 320 are sleeved in the mounting grooves 110, and can be more accurately placed on the support seat 100 to avoid positional deviation of the lower grinding plate 300 when placed.

[0054] The present disclosure also provides a heat conducting component stamping device 1, comprising the heat conducting component stamping forming die 10 described in any of the above embodiments, such as Figure 6 As shown, the heat conductive component stamping equipment 1 also includes a driving component and a pressing component. The pressing component is arranged above the upper grinding plate 200 and is connected to the driving end of the driving component. When the driving component is started, it drives the pressing component to move downward, so that the stamping column of the pressing component can press the powder placed in the positioning receiving hole 210 of the upper grinding plate 200 through the wear-resistant material cavity 421 and then press it into the wear-resistant forming hole 411, so that the powder is formed into the material cake placed in the receiving groove 312 of the lower grinding plate 300, thereby completing the forming of the heat conductive component.

[0055] Compared with the prior art, the present invention has at least the following advantages:

[0056] Since the upper grinding plate 200 is formed with at least one positioning and receiving hole 210, the positioning and receiving hole 210 is used to place the powder; the forming hole 310 of the lower grinding plate 300 includes a connected pressing and molding groove 311 and a receiving groove 312, the receiving groove 312 is used to place the cake, and the pressing and molding groove 311 is used to mold and fix the powder on the cake, and the wear-resistant core barrel 400 is arranged in the corresponding pressing and molding groove 311. During the pressing and molding process, the additional wear-resistant core barrel 400 avoids the direct contact between the powder and the inner circumferential wall of the pressing and molding groove 311, and avoids the wear of the inner circumferential wall of the pressing and molding groove 311. In addition, the wear-resistant core barrel 400 itself has high wear resistance, which further improves the service life of the lower grinding plate 300, thereby improving the service life of the heat conductive part stamping forming mold 10, and is particularly suitable for the application of metal heat conductive parts.

[0057] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be based on the attached claims.

Claims

1. A stamping die for a heat conducting part, comprising a support seat, an upper grinding plate and a lower grinding plate, wherein the upper grinding plate and the lower grinding plate are sequentially detachably stacked on the support seat; the upper grinding plate is formed with at least one positioning and receiving hole; the lower grinding plate is correspondingly formed with at least one forming hole; each of the positioning and receiving holes is arranged in one-to-one correspondence with each of the forming holes; characterized in that: The forming hole comprises a pressing forming groove and a containing groove which are connected to each other, and the pressing forming groove is arranged toward the positioning containing hole; The heat-conducting component stamping mold also includes at least one wear-resistant core barrel; each of the wear-resistant core barrels is arranged in the corresponding pressing and forming groove; the wear-resistant core barrel is used to reduce the wear of the lower grinding plate and the upper grinding plate during pressing.

2. The heat conducting component stamping die according to claim 1, characterized in that: The wear-resistant core barrel is sleeved on the inner wall of the pressing and forming groove.

3. The heat conducting component stamping die according to claim 1, characterized in that: The inner diameter of the press-formed groove is not equal to the inner diameter of the containing groove, and the center line of the press-formed groove coincides with the center line of the containing groove.

4. The heat conducting component stamping die according to claim 1, characterized in that: The wear-resistant core barrel includes a wear-resistant cylinder body and a wear-resistant limiting cap connected to each other, the wear-resistant cylinder body is formed with a wear-resistant forming hole; the wear-resistant cylinder body is sleeved on the inner wall of the pressing and forming groove and is connected to the wear-resistant limiting cap; the wear-resistant limiting cap is at least partially protruded from the pressing and forming groove; the wear-resistant limiting cap is formed with a wear-resistant material passing cavity connected to the wear-resistant forming hole.

5. The heat conducting component stamping die according to claim 4, characterized in that: The wear-resistant material passage cavity is formed with a wide-mouth material receiving cavity at one end thereof facing the upper grinding plate; and / or, The outer periphery of the wear-resistant limiting cap forms a limiting avoidance portion; and / or, The wear-resistant cylinder and the wear-resistant limiting cap are an integrally formed structure; and / or, The wear-resistant cylinder extends to the inner wall of the accommodating groove.

6. The heat conducting component stamping die according to claim 1, characterized in that: A wide-mouth feeding cavity is formed at one end of the accommodating groove facing away from the positioning receiving hole.

7. The heat conducting component stamping die according to claim 1, characterized in that: The wear-resistant core barrel is one or more of a stainless steel wear-resistant core barrel, an alloy steel wear-resistant core barrel and a ceramic wear-resistant core barrel.

8. The heat conducting component stamping die according to claim 1, characterized in that: The upper grinding plate and / or the lower grinding plate is one of an aluminum plate, an aluminum alloy plate, a stainless steel plate, an alloy steel plate, a ceramic plate and a plastic plate.

9. The heat conducting component stamping die according to claim 1, characterized in that: The support seat is formed with a mounting groove, and the mounting groove is used to accommodate the lower grinding plate; and / or, A plurality of first positioning holes are formed at the periphery of the upper grinding plate; and / or, A plurality of second positioning holes are formed at the periphery of the lower grinding plate.

10. A heat conducting part stamping device, characterized in that: A heat conducting component stamping die comprising the heat conducting component stamping die according to any one of claims 1 to 9.

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