Automatic stamping equipment for cooling fins

By designing an automatically driven mold frame and limit groove sliding adaptation system, the problem of double roller shaft deformation in traditional stamping equipment is solved, and the efficient stamping and dust-proof functions of the automatic stamping fin fin are realized.

CN119566144AInactive Publication Date: 2025-03-07SHENZHEN YICHENG HONGYE HARDWARE PROD CO LTD
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Patent Information

Application Number
CN202411873158.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-03-07
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The traditional stamping equipment with an internal line switching mold adopts a double-roll design, which causes the shaft of the double-roll to be subjected to a force during the stamping process, which will deform for a long time, affecting the stamping effect.

Method used

A heat sink automatic stamping equipment is designed, and the mold frame is used to drive the stamping mold to rotate, and the lifting and dust-proof functions of the mold are realized through the sliding adaptation between the first limiting rod and the limiting groove. At the same time, the load-bearing component is used to cushion on the bottom of the mold during the stamping process to prevent the mold frame shaft from being deformed by force.

Benefits of technology

By driving the mold frame to rotate and utilize the sliding adaptation of the limit groove and limit rod, the automatic lifting and dust-proof functions of the stamping mold are realized, avoiding deformation of the mold frame shaft, and improving the stamping effect and the service life of the equipment.

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Abstract

The invention provides automatic punching equipment for cooling fins, and relates to the technical field of punching equipment.The automatic punching equipment comprises a punching machine, a die frame and a punching die, a motor used for driving the die frame to rotate is fixedly installed in the punching machine, a die outlet is formed in a punching table top of the punching machine, and cavities are formed in the two sides of the die outlet; the multiple punching dies are annularly arranged on the die frame, a first limiting groove is formed in the rear side wall in the punching machine, a second limiting groove is formed in the front side wall in the punching machine, and the dustproof assembly is installed in the punching machine and used for preventing dust during shutdown; by means of the technical scheme, the purpose of die internal line switching of stamping equipment is achieved, the integral die mode is adopted, the problem of stress of a shaft rod of the die frame is solved through linkage of the bearing assemblies, the dustproof assembly and the die frame, and the die frame is convenient to use and high in practicability. Meanwhile, the dustproof function is achieved.
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Description

Technical Field

[0001] The invention relates to the technical field of stamping equipment, and in particular to automatic stamping equipment for heat sinks. Background Art

[0002] A heat sink is a device used to dissipate heat, usually made of materials with good thermal conductivity, such as aluminum, copper or other composite materials. Its main purpose is to transfer heat from a heat source (such as an electronic component) to the surrounding environment, thereby reducing the temperature of the heat source and ensuring the normal operation and life of the equipment. It is widely used in electronic equipment, industrial equipment, new energy equipment and aviation equipment. The production method of heat sinks is to die-cast large pieces of metal raw materials into plates or strips, then cut them into the size required for the heat sink, and finally place the cut plates in a mold and stamp them into shape through a stamping device.

[0003] Since the areas of the various surfaces of the equipment using the heat sink are different, the heat sinks that are stamped by multiple sets of dies need to be installed. Traditional stamping equipment with internal line switching dies mainly adopts a double-roller design, and the upper and lower dies are installed respectively. During the stamping process, the axes of the double rollers will be subjected to force, which will deform over a long period of time, affecting the stamping effect. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art that the traditional stamping equipment with internal line switching molds mainly adopts a double-roller design, and the upper and lower molds are installed respectively. During the stamping process, the axes of the double rollers will be subjected to force, which will deform over a long period of time, affecting the stamping effect.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an automatic stamping device for heat sink, comprising a stamping machine, a die frame and a stamping die, wherein a motor for driving the die frame to rotate is fixedly installed in the stamping machine, a die outlet is provided on the stamping table of the stamping machine and cavities are provided on both sides of the die outlet, a plurality of stamping dies are provided and are arranged in a ring shape on the die frame, a first limiting groove is provided on the rear side wall of the stamping machine, a second limiting groove is provided on the front side wall of the stamping machine, and further comprising: A dustproof component installed in the punching machine for preventing dust when the punching machine is stopped; Two load-bearing components are installed on the punching machine and are used to support the punching die when punching the heat sink.

[0006] In at least some embodiments, a plug-in column is fixedly installed at the bottom of the stamping die, and the stamping die is movably inserted into the die frame through the plug-in column. First limit rods are provided on both sides of the bottom of the plug-in column to make the whole present an inverted "T" shape, and the two first limit rods are movably inserted in the first limit groove and the second limit groove respectively.

[0007] In at least some embodiments, the first limiting groove is overall in the shape of a teardrop, and includes an annular portion for limiting the rotation of the first limiting rod, a horizontal portion for stabilizing the first limiting rod during stamping, an undulating portion for preventing interference with the movement of the stamping die during mold switching, and a connecting portion for lifting the stamping die, the annular portion is connected to the horizontal portion and the undulating portion through the two connecting portions, and the annular portion is concentric with the die frame.

[0008] In at least some embodiments, the dustproof assembly includes a connecting seat and a dustproof plate, the connecting seat is slidably installed in a first limiting groove, the dustproof plate is provided with two pieces and is mirror-slidably installed in the cavities on both sides of the mold outlet, the length of the cavity is greater than the length of the dustproof plate, and a first connecting rod is rotatably connected between the two dustproof plates and the connecting seat.

[0009] In at least some embodiments, a third limiting groove is formed at one end of the connecting seat facing the mold frame, the third limiting groove is stepped and two ends of the third limiting groove are tangent to the annular portion of the first limiting groove.

[0010] In at least some embodiments, tooth plates are fixedly mounted on the tops of the two dustproof plates, and the tooth surfaces of the two tooth plates face oppositely.

[0011] In at least some embodiments, the load-bearing assembly includes a turntable, an axle seat and a load-bearing seat. The turntable is rotatably installed on the stamping table of the stamping machine, the axis of the turntable extends into the cavity in the die outlet and is fixedly installed with a gear meshing with the tooth plate, the axle seat is fixedly installed on the stamping table of the stamping machine, a second connecting rod is rotatably installed in the axle seat, a torsion spring is fixedly installed between the second connecting rod and the axis and the axle seat, one end of the second connecting rod is in contact with the turntable, and a fourth limiting groove is provided at the other end of the second connecting rod, the stamping table of the stamping machine is provided with two slide rails for slidingly installing the load-bearing seat, a boss is provided on the top of the load-bearing seat, and the boss is slidably installed in the fourth limiting groove.

[0012] In at least some embodiments, the turntable is in a volute shape as a whole to cooperate with the elastic effect of the torsion spring to enable the second connecting rod to drive the load-bearing seat to eject back to its original position.

[0013] In at least some embodiments, a notch for rotation of the plug-in column is provided at one end of the load-bearing seat away from the protruding column, and when the second connecting rod contacts the most protruding part of the rotating disk, the two load-bearing seats are not in contact with each other.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are: 1. In the present invention, the mold frame is driven to rotate, and the mold frame drives the stamping mold to rotate. The sliding adaptation effect of the first limiting rod and the first limiting groove can be used to drive the stamping mold to rise and fall, and the sliding adaptation effect of the first limiting rod and the third limiting groove can be used to drive the dustproof plate in the dustproof component to open and close, so that it has a dustproof function.

[0015] 2. In the present invention, through the linkage effect of the dustproof component and the load-bearing component, when the stamping die is raised, the load-bearing seat cushion of the load-bearing component is set at the bottom of the stamping die. When the stamping die retracts, the load-bearing seat automatically ejects back to its position to prevent the die frame shaft rod from being deformed by force during the stamping process, and will not cause action interference during the die switching process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an overall three-dimensional schematic diagram of an automatic heat sink stamping device proposed by the present invention; Figure 2 A schematic diagram of the internal structure of a punching machine in an automatic heat sink punching device proposed by the present invention; Figure 3 A schematic diagram of the structure of a die frame in an automatic heat sink stamping device proposed by the present invention; Figure 4 A schematic diagram of the structure of a stamping die in an automatic stamping device for heat sinks proposed by the present invention; Figure 5 It is a schematic diagram of assembling a first limiting rod and a first limiting groove in an automatic heat sink stamping device proposed by the present invention; Figure 6 A schematic diagram of the shape of a first limiting groove in an automatic heat sink stamping device proposed by the present invention; Figure 7 A schematic diagram of the structure of a dust-proof component in an automatic heat sink stamping device proposed by the present invention; Figure 8 This is a structural schematic diagram of a connecting seat in a heat sink automatic stamping device proposed by the present invention; Fig. 9 This is a schematic diagram of the installation of a connecting seat in an automatic heat sink stamping device proposed by the present invention; Fig.10 This is a schematic diagram of the installation of a load-bearing component in an automatic heat sink stamping device proposed by the present invention; Fig.11 The present invention provides a schematic structural diagram of a load-bearing component in an automatic heat sink stamping device.

[0017] Legend: 1, punching machine; 101, first limiting groove; 1011, annular portion; 1012, connecting portion; 1013, horizontal portion; 1014, undulating portion; 102, second limiting groove; 2. Mould rack; 3. Stamping die; 301. Connecting column; 302. First limiting rod; 4. Dustproof assembly; 401. Connecting seat; 402. Dustproof plate; 403. First connecting rod; 404. Third limiting groove; 405. Tooth plate; 5. load-bearing assembly; 501. turntable; 502. shaft seat; 503. load-bearing seat; 504. gear; 505. torsion spring; 506. second connecting rod; 507. fourth limiting groove; 508. boss. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0020] Embodiment, according to Figure 1-Figure 11 ,like Figure 1 In the embodiment of the present invention, a heat sink automatic stamping device includes a stamping machine 1, a die frame 2 and a stamping die 3, such as Figure 2 and Figure 3 In the embodiment, a motor for driving the die frame 2 to rotate is fixedly installed in the punching machine 1, a die outlet is provided on the punching table of the punching machine 1, and cavities are provided on both sides of the die outlet, a plurality of punching dies 3 are provided and are arranged in a ring shape on the die frame 2, a first limiting groove 101 is provided on the rear side wall of the punching machine 1, and a second limiting groove 102 is provided on the front side wall of the punching machine 1, and further includes: A dustproof component 4 installed in the punching machine 1 for preventing dust when the punching machine is stopped; Two load-bearing components 5 are installed on the punching machine 1 and are used to support the punching die 3 when punching the heat sink.

[0021] like Figure 4 and Figure 5 In the embodiment, a plug-in column 301 is fixedly installed at the bottom of the stamping die 3, and the stamping die 3 is movably inserted into the die frame 2 through the plug-in column 301. Both sides of the bottom of the plug-in column 301 are provided with a first limiting rod 302 so that the whole is in an inverted "T" shape. The two first limiting rods 302 are movably inserted into the first limiting groove 101 and the second limiting groove 102 respectively. Figure 4It can be seen that the stamping die 3 adopts the design of upper and lower integral dies. It is only necessary to place the material plate between the upper and lower dies and punch the upper die through the punching machine 1. The stamping die 3 is movably inserted into the die frame 2 through the plug-in column 301 at the bottom, and during the rotation of the die frame 2, the first limiting rod 302 slides and adapts with the first limiting groove 101 and the second limiting groove 102, so as to drive the stamping die 3 and the connecting seat 401 to rise and fall.

[0022] like Figure 5 and Figure 6 In the figure, the first limiting groove 101 is in a teardrop shape as a whole, and the first limiting groove 101 includes an annular portion 1011 for limiting the rotation of the first limiting rod 302, a horizontal portion 1013 for stabilizing the first limiting rod 302 during stamping, an undulating portion 1014 for preventing the movement interference of the stamping die 3 when the die is switched, and a connecting portion 1012 for lifting the stamping die 3. The annular portion 1011 is connected with the horizontal portion 1013 and the undulating portion 1014 through two connecting portions 1012, and the annular portion 1011 is concentric with the die frame 2. When the first limiting rod 302 corresponding to the stamping die 3 is placed in the annular portion 1011 of the first limiting groove 101 during the rotation of the die frame 2, since the annular portion 1011 is concentric with the die frame 2, the corresponding stamping die 3 will not rise or fall, so as to prevent the stamping die 3 from rising or falling. Figure 6 From the perspective of when the first limiting rod 302 corresponding to the stamping die 3 is placed on the connecting portion 1012 on the right side of the first limiting groove 101, during the counterclockwise rotation of the die frame 2, the plug-in column 301 will be driven to extend and drive the stamping die 3 to rise; when the first limiting rod 302 corresponding to the stamping die 3 is placed on the connecting portion 1012 on the right side of the first limiting groove 101, during the counterclockwise rotation of the die frame 2, the plug-in column 301 will be driven to extend and drive the stamping die 3 to rise; when the first limiting rod 302 corresponding to the stamping die 3 is placed on the connecting portion 1012 on the left side of the first limiting groove 101, the stamping die 3 will descend according to the same principle; when the first limiting rod 302 is placed on the horizontal portion 1013 of the first limiting groove 101, the die frame 2 stops rotating to keep the stamping die 3 horizontal for subsequent stamping operations; when the stamping die 3 needs to be switched, Figure 6 From a certain perspective, when the mold frame 2 rotates counterclockwise to drive the first limiting rod 302 to pass through the undulating portion 1014, the stamping mold 3 will be lifted upward once to prevent the bottom of the stamping mold 3 from interfering with the load-bearing component 5 when the stamping mold 3 is switched.

[0023] like Figure 7In the embodiment, the dustproof assembly 4 includes a connecting seat 401 and a dustproof plate 402. The connecting seat 401 is slidably installed in the first limiting groove 101. The dustproof plate 402 is provided with two pieces and is mirror-image-slidably installed in the chambers on both sides of the die outlet. The length of the chamber is greater than the length of the dustproof plate 402. When the stamping die 3 needs to be switched, the dustproof plate 402 is retracted into the chamber and cooperates with the action of the first limiting rod 302 and the undulating portion 1014 of the first limiting groove 101, so that the dustproof plate 402 can also be retracted into the chamber for a short distance, further preventing the action interference when the stamping die 3 is switched. The two dustproof plates 402 are rotatably connected to the connecting seat 401 with the first connecting rod 403. Figure 8 In the embodiment, the connecting seat 401 is provided with a third limiting groove 404 at one end facing the mold frame 2. The third limiting groove 404 is in a step-shaped shape and the two ends of the third limiting groove 404 are tangent to the annular portion 1011 of the first limiting groove 101. Fig. 9 In the embodiment, tooth plates 405 are fixedly installed on the top of the two dustproof plates 402, and the tooth surfaces of the two tooth plates 405 face oppositely. In the process of rotating the mold frame 2, when the first limiting rod 302 on one end face of the plug-in column 301 enters the connecting portion 1012 of the first limiting groove 101, the first limiting rod 302 on the other end face of the plug-in column 301 will also be included in the third limiting groove 404. When the first limiting rod 302 located in the first limiting groove 101 rises, the first limiting rod 302 located in the third limiting groove 404 will The connecting seat 401 is lifted up at the level of the top of the step-shaped third limiting groove 404, and at the same time, it moves horizontally in the third limiting groove 404. The connecting seat 401 slides and rises in the second limiting groove 102, driving the two first connecting rods to rotate and increase the angle. At the same time, the two dustproof plates 402 are pushed away from each other and retracted into the chamber of the stamping machine 1 through the first connecting rod. Conversely, the dustproof plates 402 are opened when the stamping die 3 is in use and closed when the stamping die 3 is not in use, thereby playing a dust-proof role.

[0024] like Fig.10 and Fig.11In the embodiment, the load-bearing component 5 includes a turntable 501, an axle seat 502 and a load-bearing seat 503. The turntable 501 is rotatably installed on the stamping table of the stamping machine 1. The axis of the turntable 501 extends into the cavity in the die outlet and is fixedly installed with a gear 504 meshing with the tooth plate 405. The axle seat 502 is fixedly installed on the stamping table of the stamping machine 1. A second connecting rod 506 is rotatably installed in the axle seat 502. A torsion spring 505 is fixedly installed between the axis of the second connecting rod 506 and the axle seat 502. One end of the second connecting rod 506 contacts the turntable 501, and the other end of the second connecting rod 506 is provided with a fourth limiting groove 507. The stamping table of the stamping machine 1 is provided with two slide rails for slidingly installing the load-bearing seat 503. A boss 508 is provided on the top of the load-bearing seat 503. The boss 508 is slidably installed in the fourth limiting groove 507. 01 is in the shape of a volute as a whole, so as to cooperate with the elastic action of the torsion spring 505 to enable the second connecting rod 506 to drive the load-bearing seat 503 to eject back to its original position. The load-bearing seat 503 is provided with a notch for the rotation of the plug-in column 301 at one end away from the protruding column 508. When the second connecting rod 506 contacts the most protruding part of the rotating disk 501, the two load-bearing seats 503 do not contact each other. Among them, when the two dust-proof plates 402 retract, the rotating disk 501 is driven to rotate through the meshing action of the tooth plate 405 and the gear 504. Under the elastic force of the torsion spring 505, one end of the second connecting rod 506 will always contact the edge of the rotating disk 501, and the rotating disk 501 is in the shape of a volute. It is worth noting that the cross-sectional edge of the rotating disk 501 is mainly composed of circular line segments, vortex line segments and straight line segments. When the second connecting rod 506 contacts the vortex line segment, the diameter of the vortex line segment gradually increases. Fig.11 The counterclockwise rotation of the viewing angle turntable 501 will drive the second connecting rod 506 to rotate counterclockwise, and at the same time, the boss 508 will slide in the fourth limit groove 507, and under the guidance of the slide rail on the stamping machine 1, the second connecting rod 506 will push the load-bearing seat 503 to move toward the stamping die 3, and finally be cushioned at the bottom of the stamping die 3. When the stamping die 3 is switched, the turntable 501 continues to rotate, and the second connecting rod 506 loses contact with the connection point between the vortex segment and the straight line segment of the turntable 501, and under the elastic force of the torsion spring 505, the second connecting rod 506 rotates and quickly contacts the circular segment of the turntable 501, and uses the above principle to drive the load-bearing seat 503 to return to its position, thereby achieving the purpose of ejecting the load-bearing seat 503 back to its position.

[0025] The specific working principle is that when stamping is required, the motor drives the mold frame 2 to rotate, and the mold frame 2 drives the stamping mold 3 to rotate. Figure 6From a perspective, when the first limiting rod 302 corresponding to the stamping die 3 is placed on the connecting portion 1012 on the right side of the first limiting groove 101, during the counterclockwise rotation of the die frame 2, the plug-in column 301 will be driven to extend and drive the stamping die 3 to rise, and the first limiting rod 302 will enter the horizontal portion 1013 of the first limiting groove 101. At this time, the die frame 2 stops rotating to keep the stamping die 3 horizontal for subsequent stamping operations. At the same time as the above actions, the first limiting rod 302 on the other end face of the plug-in column 301 will also be inserted into the third limiting groove 404. When the first limiting rod 302 located in the first limiting groove 101 rises, the first limiting rod 302 located in the third limiting groove 404 will lift the connecting seat 401 up at the level of the top of the terrace of the third limiting groove 404, and at the same time, it will automatically The body moves horizontally in the third limiting groove 404, and the connecting seat 401 slides and rises in the second limiting groove 102, driving the two first connecting rods to rotate and increase the angle, and at the same time, the two dustproof plates 402 are pushed away from each other and retracted into the chamber of the punching machine 1 through the first connecting rod. At the same time, the stamping die 3 is placed on the stamping table, and when the two dustproof plates 402 retract, the turntable 501 is driven to rotate through the meshing action of the tooth plate 405 and the gear 504. Under the elastic force of the torsion spring 505, one end of the second connecting rod 506 will always be in contact with the edge of the turntable 501, and the turntable 501 is in a volute shape. It is worth noting that the cross-sectional edge of the turntable 501 is mainly composed of circular line segments, vortex line segments and straight line segments. When the second connecting rod 506 contacts the vortex line segment, the diameter of the vortex line segment gradually increases. Fig.11 The counterclockwise rotation of the viewing angle turntable 501 will drive the second connecting rod 506 to rotate counterclockwise, and at the same time, the protruding column 508 slides in the fourth limiting groove 507, and under the guidance of the slide rail on the punching machine 1, the second connecting rod 506 will push the bearing seat 503 to move toward the punching die 3, and finally be cushioned at the bottom of the punching die 3, thereby completing the purpose of lifting the die; When the stamping die 3 needs to be switched, the die frame 2 continues to rotate to Figure 6From a viewing angle, when the die frame 2 rotates counterclockwise to drive the first limiting rod 302 to pass through the undulating portion 1014 of the first limiting groove 101, the stamping die 3 will be lifted up once to prevent the bottom of the stamping die 3 from interfering with the load-bearing component 5 when the stamping die 3 is switched. Since the length of the chamber is greater than the length of the dustproof plate 402, the dustproof plate 402 can continue to retract a distance into the chamber. When the stamping die 3 rises a short distance, the turntable 501 rotates, and the second connecting rod 506 loses contact with the turntable 501. The vortex line segment contacts the connection point of the straight line segment, and under the elastic force of the torsion spring 505, the second connecting rod 506 rotates and quickly contacts the circular line segment of the turntable 501, and the above-mentioned reverse principle is used to drive the load-bearing seat 503 to return to its original position, so as to achieve the purpose of ejection return of the load-bearing seat 503, and when the first limit enters the connecting part 1012 on the left side of the first limit groove 101, the stamping die 3 descends and retracts, and at the same time, the dustproof plate 402 is closed and the above-mentioned die lifting action is cycled again to achieve the purpose of automatic and rapid inner line switching of the die; Since the motor inside the punching machine 1 can drive the die frame 2 to rotate, when the punching machine 1 is not in use, it is sufficient to drive the die frame 2 to rotate and make one of the punching dies 3 vertically downward, and the punching die 3 will not extend out under the limiting action of the first limiting groove 101, and the dustproof plate 402 is closed for dust prevention.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An automatic heat sink stamping device, comprising a stamping machine (1), a die frame (2) and a stamping die (3), characterized in that: A motor for driving the die frame (2) to rotate is fixedly installed in the punching machine (1), a punching table of the punching machine (1) is provided with a die outlet and cavities are provided on both sides of the die outlet, a plurality of punching dies (3) are provided and are arranged in a ring shape on the die frame (2), a first limiting groove (101) is provided on the rear side wall of the punching machine (1), and a second limiting groove (102) is provided on the front side wall of the punching machine (1), and further comprises: A dustproof component (4) installed in the punching machine (1) for preventing dust when the machine is stopped; Two load-bearing components (5) mounted on the punching machine (1) and used to support the punching die (3) when punching the heat sink.

2. The automatic heat sink stamping equipment according to claim 1, characterized in that: A plug-in column (301) is fixedly mounted on the bottom of the punching die (3), and the punching die (3) is movably inserted into the die frame (2) via the plug-in column (301). First limit rods (302) are provided on both side surfaces of the bottom of the plug-in column (301) so that the whole is in an inverted "T" shape. The two first limit rods (302) are movably inserted into the first limit groove (101) and the second limit groove (102) respectively.

3. The automatic heat sink stamping equipment according to claim 2, characterized in that: The first limiting groove (101) is in a teardrop shape as a whole, and comprises an annular portion (1011) for rotationally limiting the first limiting rod (302), a horizontal portion (1013) for stabilizing the first limiting rod (302) during stamping, an undulating portion (1014) for preventing movement interference of the stamping die (3) during die switching, and a connecting portion (1012) for lifting the stamping die (3), wherein the annular portion (1011) is connected to the horizontal portion (1013) and the undulating portion (1014) via the two connecting portions (1012), and the annular portion (1011) is cocentric with the die frame (2).

4. The automatic heat sink stamping equipment according to claim 1, characterized in that: The dustproof assembly (4) comprises a connecting seat (401) and a dustproof plate (402), wherein the connecting seat (401) is slidably mounted in a first limiting groove (101), and the dustproof plate (402) is provided with two pieces and is mirror-image-slidably mounted in cavities on both sides of the die outlet, wherein the length of the cavity is greater than the length of the dustproof plate (402), and a first connecting rod (403) is rotatably connected between the two dustproof plates (402) and the connecting seat (401).

5. The automatic heat sink stamping equipment according to claim 4, characterized in that: The connecting seat (401) is provided with a third limiting groove (404) at one end facing the mold frame (2); the third limiting groove (404) is in a step-shaped shape and two ends of the third limiting groove (404) are tangent to the annular portion (1011) of the first limiting groove (101).

6. The automatic heat sink stamping equipment according to claim 5, characterized in that: A toothed plate (405) is fixedly mounted on the top of the two dustproof plates (402), and the toothed surfaces of the two toothed plates (405) face opposite directions.

7. The automatic heat sink stamping equipment according to claim 1, characterized in that: The load-bearing assembly (5) comprises a turntable (501), an axle seat (502) and a load-bearing seat (503); the turntable (501) is rotatably mounted on the punching table of the punching machine (1); the axis of the turntable (501) extends into a cavity in the die outlet and is fixedly mounted with a gear (504) meshing with a toothed plate (405); the axle seat (502) is fixedly mounted on the punching table of the punching machine (1); a second connecting rod (506) is rotatably mounted in the axle seat (502); the second connecting rod (506) is A torsion spring (505) is fixedly installed between the connecting rod (506) and the shaft seat (502); one end of the second connecting rod (506) contacts the turntable (501); the other end of the second connecting rod (506) is provided with a fourth limiting groove (507); the stamping table of the stamping machine (1) is provided with two slide rails for slidably installing the load-bearing seat (503); a convex column (508) is provided on the top of the load-bearing seat (503); and the convex column (508) is slidably installed in the fourth limiting groove (507).

8. The automatic heat sink stamping equipment according to claim 7, characterized in that: The rotating disk (501) is in the form of a volute as a whole, so as to cooperate with the elastic action of the torsion spring (505) to enable the second connecting rod (506) to drive the bearing seat (503) to eject back to its original position.

9. The automatic heat sink stamping equipment according to claim 8, characterized in that: A notch for rotation of the plug-in column (301) is provided at one end of the load-bearing seat (503) away from the protruding column (508), and when the second connecting rod (506) contacts the most protruding part of the rotating disk (501), the two load-bearing seats (503) are not in contact with each other.

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