A heat sink production jig

By designing a heat sink production fixture that links the support plate, the embedded slot assembly, and the offset detection assembly, the problem of positional offset and tilting of the heat sink during processing was solved, achieving precise positioning and real-time detection, and improving processing quality and consistency.

CN224464522UActive Publication Date: 2026-07-07DONGGUAN DONGYISI CHUANG ELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN DONGYISI CHUANG ELECTRONICS CO LTD
Filing Date
2025-07-29
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing fixtures are prone to positional shifts, tilting, or surface unevenness during heat sink processing. They lack real-time detection and feedback mechanisms, which affect product consistency and processing accuracy.

Method used

A jig for radiator manufacturing was designed, comprising a support plate, a fin embedding slot assembly, a base frame assembly, and a support block. A push rod assembly and an offset detection assembly are linked together, with indicator lights providing real-time warnings to ensure accurate positioning of the fins and high processing quality.

Benefits of technology

It significantly improves the positioning accuracy and processing yield of heat sinks, ensures that heat sinks are placed flat, reduces processing errors, and improves product consistency and processing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fixture for radiator production, including support board, radiating fin embedding groove subassembly, pilot lamp and bottom frame subassembly, through having set up radiating fin embedding groove subassembly, through the linkage design of jackscrew subassembly and offset detection subassembly, when the radiating fin is not placed flat or is offset, the horizontal plate is inclined and triggers the microswitch, and the real -time warning of cooperation pilot lamp, and operating personnel can adjust the radiating fin position quickly, and positioning accuracy and processing yield are improved significantly, and after the radiating fin processing is completed, the jackscrew will be lifted up the radiating fin in the embedding groove inside, and it is convenient for the staff to take the radiating fin of processing completion.
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Description

Technical Field

[0001] This utility model relates to the field of radiator processing technology, specifically a jig for radiator production. Background Technology

[0002] In the field of radiator manufacturing, heat sinks, as core heat dissipation components, are usually made of high thermal conductivity metals, such as aluminum and copper alloys, and are made into thin sheet or fin structures through processes such as stamping and extrusion. Their function is to increase the surface area to accelerate heat conduction and convection, thereby improving heat dissipation efficiency. The processing precision of heat sinks directly affects their fit with the radiator base and heat transfer performance. If the heat sink is misaligned, tilted, or has an uneven surface during processing, it is easy to cause problems such as poor welding joints and uneven assembly gaps, thereby reducing the overall performance and reliability of the radiator.

[0003] As a key tooling equipment in heat sink production, the fixture needs to undertake multiple functions such as precise positioning, fixed support, and forming assistance. In the heat sink production process, the precision and stability of the fixture directly affect the processing quality of the heat sink. In the existing technology, traditional fixtures mostly adopt mechanical fixing or single adsorption methods, which have the following shortcomings: heat sinks are prone to displacement or tilting when placed, and there is a lack of real-time detection and feedback mechanism, which leads to the accumulation of processing errors and affects product consistency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a jig for radiator manufacturing, which solves the aforementioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fixture for radiator production, comprising a support plate, a fin embedding slot assembly, a bottom frame assembly, and a support block. The fin embedding slot assembly is provided on the support plate, the bottom frame assembly is installed at the bottom of the support plate, and a support block is fixed at the bottom corner of the support plate. The fin embedding slot assembly includes an embedding slot, a through hole, a top rod assembly, a horizontal plate, an offset detection assembly, and an elastic support rod. The embedding slot is located on the top surface of the support plate, and a through hole is provided in the bottom wall of the embedding slot, which communicates with the bottom frame assembly. Top rod assemblies are vertically arranged at the four bottom corners of the embedding slot, with the bottom ends of the top rod assemblies extending into the bottom frame assembly and supported by the horizontal plate. An offset detection assembly is installed in the middle of the bottom of the horizontal plate, and the bottom end of the offset detection assembly is connected to the elastic support rod. The bottom of the elastic support rod is fixedly connected to the bottom frame assembly.

[0008] Preferably, the push rod assembly includes a push rod, a limiting ring, and a universal ball bearing. The limiting ring is fixed in the middle of the outer wall of the push rod, the universal ball bearing is installed at the bottom end of the push rod, the top of the push rod vertically penetrates the support plate, and the top end of the push rod extends into the embedded groove. The bottom end of the universal ball bearing is slidably connected to the cross plate.

[0009] Preferably, the height of the top end of the top rod is lower than the height of the top surface of the support plate.

[0010] Preferably, the offset detection component includes a ball bearing limiting frame, a ball bearing, a connecting frame, a micro switch, and a pressing rod. The ball bearing is embedded in the inner center of the ball bearing limiting frame, and the inner wall of the ball bearing limiting frame is slidably connected to the ball bearing. The bottom edge of the ball bearing limiting frame is fixedly connected to the connecting frame. A micro switch is vertically installed in the inner bottom center of the connecting frame. A pressing rod is fixed to the bottom end of the ball bearing. The top end of the ball bearing is fixedly connected to the bottom center of the horizontal plate. The bottom end of the connecting frame is fixedly connected to an elastic support rod.

[0011] Preferably, when the pressing rod is in a vertical state, the bottom end of the pressing rod remains pressed against the micro switch.

[0012] Preferably, the elastic support rod includes an outer frame, a slider, a spring, and a vertical rod. The slider is provided on the top inner side of the outer frame. The outer frame is vertically arranged, and the inner wall of the outer frame is in contact with the slider. The bottom end of the slider is elastically connected to the bottom inner end of the outer frame through a spring. The bottom end of the vertical rod extends into the outer frame and is fixedly connected to the slider, and the top end of the vertical rod is fixedly connected to the connecting frame.

[0013] Preferably, an indicator light is provided at the edge of the top surface of the support plate, the number of indicator lights is the same as that of the heat sink embedding slot assembly, and the position of the indicator lights is aligned with that of the heat sink embedding slot assembly.

[0014] Preferably, the bottom frame assembly includes a sealing frame, a partition, a branch pipe, a solenoid valve, and a straight pipe. The sealing frame has a vertically arranged partition, and the partitions form independent sealing chambers. The front end of the sealing frame is connected to the straight pipe through the branch pipe, and a solenoid valve is installed in the middle of the branch pipe. The number of branch pipes and sealing chambers is the same as the number of heat sink embedding slot assemblies.

[0015] Preferably, the heat sink embedding slot assembly further includes a filter and a sealing plate, the filter and the sealing plate being threadedly connected to a through hole at the bottom of the embedding slot, and the filter having a filter screen inside.

[0016] (III) Beneficial Effects

[0017] This utility model provides a fixture for radiator production. It has the following advantages: By setting up a radiator embedding slot assembly and through the linkage design of the push rod assembly and the offset detection assembly, when the radiator is not placed flat or offset, the horizontal plate tilts and triggers a micro switch, which, together with the indicator light, provides real-time warning. The operator can quickly adjust the position of the radiator, significantly improving the positioning accuracy and processing yield. Moreover, after the radiator is processed, the push rod lifts the radiator inside the embedding slot, making it easy for the operator to pick up the processed radiator. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the heat sink embedding slot assembly structure in this utility model;

[0021] Figure 4 This is a right view of the heat sink embedding slot assembly structure in this utility model;

[0022] Figure 5 This is a front view of the heat sink embedding slot assembly structure in this utility model;

[0023] Figure 6 This is a schematic diagram of the top rod assembly structure in this utility model;

[0024] Figure 7 This is a front view of the internal structure of the offset detection component in this utility model;

[0025] Figure 8 This is a front view of the internal structure of the elastic support rod in this utility model.

[0026] In the diagram: Support plate-1, Heat sink embedding slot assembly-2, Indicator light-3, Base frame assembly-4, Support block-5;

[0027] Embedded slot-21, through hole-22, top rod assembly-23, horizontal plate-24, offset detection assembly-25, elastic support rod-26, filter-27, sealing plate-28;

[0028] Top rod-231, limit ring-232, universal ball bearing-233;

[0029] Ball limit frame-251, ball-252, connecting frame-253, micro switch-254, push rod-255;

[0030] Outer frame - 261, slider - 262, spring - 263, vertical rod - 264;

[0031] Sealing frame-41, partition-42, branch pipe-43, solenoid valve-44, straight pipe-45. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figure 1-8 This utility model provides a technical solution for a radiator manufacturing fixture: a radiator manufacturing fixture includes a support plate 1, a fin embedding slot assembly 2, a bottom frame assembly 4, and a support block 5. The fin embedding slot assembly 2 is provided on the support plate 1, the bottom frame assembly 4 is installed at the bottom of the support plate 1, and the support block 5 is fixed at the bottom corner of the support plate 1. The fin embedding slot assembly 2 includes an embedding slot 21, a through hole 22, a top rod assembly 23, a horizontal plate 24, an offset detection assembly 25, an elastic support rod 26, a filter 27, and a sealing plate 28. 21 is opened on the top surface of the support plate 1. The bottom wall of the embedded groove 21 is provided with a through hole 22, and the through hole 22 is connected to the bottom frame assembly 4. The four corners of the bottom of the embedded groove 21 are vertically provided with top rod assemblies 23. The bottom end of the top rod assembly 23 extends into the bottom frame assembly 4, and the bottom end of the top rod assembly 23 is supported by a horizontal plate 24. An offset detection assembly 25 is installed in the middle of the bottom end of the horizontal plate 24. The bottom end of the offset detection assembly 25 is connected to the elastic support rod 26. The bottom of the elastic support rod 26 is fixedly connected to the bottom frame assembly 4.

[0034] The inner wall of the embedding groove 21 is in contact with the heat sink, and the heat sink is limited by the embedding groove 21;

[0035] The filter 27 and the sealing plate 28 are threadedly connected to the through hole 22 at the bottom of the embedded groove 21. The filter 27 is equipped with a filter screen to prevent debris or dust from entering the sealing frame 41 through the through hole 22 and causing blockage inside the branch pipe 43 or straight pipe 45. The sealing plate 28 is used to seal the through hole 22. There are two or more through holes 22 at the bottom of each embedded groove 21. The installation position of the filter 27 and the sealing plate 28 is adjusted according to the processing area of ​​the heat sink so that the filter 27 avoids the processing area of ​​the heat sink.

[0036] After processing, the debris in the embedded groove 21 is cleaned by blowing, and the filter screen in the filter 28 is back-blown by air intake into the sealing frame 41 to prevent the filter screen in the filter 28 from clogging easily.

[0037] The push rod assembly 23 includes a push rod 231, a limiting ring 232, and a universal ball bearing 233. The limiting ring 232 is fixed in the middle of the outer wall of the push rod 231. The universal ball bearing 233 is installed at the bottom end of the push rod 231. The top of the push rod 231 vertically penetrates the support plate 1, and the top end of the push rod 231 extends into the embedded groove 21. The bottom end of the universal ball bearing 233 is slidably connected to the horizontal plate 24. The inner wall of the support plate 1 is in contact with the push rod 231, and the contact surface is smooth, which restricts the movement trajectory of the push rod 231.

[0038] The top height of the push rod 231 is lower than the top surface height of the support plate 1. The upward movement distance of the push rod 231 is limited by the limiting ring 232 to prevent the push rod 231 from protruding out of the embedded groove 21, which would make it difficult for the heat sink to be placed in the embedded groove 21.

[0039] The offset detection component 25 includes a ball limit frame 251, a ball 252, a connecting frame 253, a micro switch 254, and a pressing rod 255. The ball 252 is embedded in the inner center of the ball limit frame 251, and the inner wall of the ball limit frame 251 is slidably connected to the ball 252. The bottom edge of the ball limit frame 251 is fixedly connected to the connecting frame 253. The micro switch 254 is vertically installed in the inner bottom center of the connecting frame 253. The pressing rod 255 is fixedly attached to the bottom end of the ball 252. The top end of the ball 252 is fixedly connected to the bottom center of the horizontal plate 24. The bottom end of the connecting frame 253 is fixedly connected to the elastic support rod 26.

[0040] Indicator lights 3 are provided at the edge of the top surface of the support plate 1. The number of indicator lights 3 is the same as that of the heat sink embedding slot assembly 2, and the positions of the indicator lights 3 are aligned with those of the heat sink embedding slot assembly 2. When the detection port of the micro switch 254 is vertically upward and the horizontal plate 24 is horizontal, the pressing rod 255 is vertical. When the pressing rod 255 is vertical, the bottom end of the pressing rod 255 keeps the micro switch 254 pressed. The top of the pressing switch of the micro switch 254 is flat, and the pressing switch is circular when viewed from above, with its outer diameter gradually decreasing from bottom to top, which facilitates the pressing rod 255 to keep the micro switch 254 pressed. The pressing of 54 facilitates the release of the pressing rod 255 from the pressing of the micro switch 254 and its return to the vertical state, that is, the return to the pressing state of the micro switch 254. When the horizontal plate 24 is tilted, it drives the ball 252 and the pressing rod 255 to rotate, causing the pressing rod 255 to release the pressing of the micro switch 254, thereby triggering the micro switch 254. At this time, it is determined that the heat sink is not in a horizontal state, that is, the heat sink is not correctly placed. The indicator light 3 uses different colored lights to remind the staff, which helps the staff to adjust the heat sink in time so that it is correctly and flatly placed in the embedded groove 21.

[0041] Indicator light 3 changes color according to the detection result of the corresponding micro switch 254 to achieve the warning effect. The indicator light 3 achieves the warning effect by changing color, which is a mature existing technology and will not be described in detail.

[0042] The micro switch 254 adopts the Omron Z-15GQ series, which features an ultra-small design, compact size, suitable for space-constrained scenarios, long mechanical life, and resistance to frequent operation;

[0043] The elastic support rod 26 includes an outer frame 261, a slider 262, a spring 263, and a vertical rod 264. The slider 262 is provided on the top inner side of the outer frame 261. The outer frame 261 is vertically arranged, and the inner wall of the outer frame 261 is in contact with the slider 262. The bottom end of the slider 262 is elastically connected to the bottom inner end of the outer frame 261 through the spring 263. The bottom end of the vertical rod 264 extends into the outer frame 261 and is fixedly connected to the slider 262. The top end of the vertical rod 264 is fixedly connected to the connecting frame 253.

[0044] The bottom frame assembly 4 includes a sealing frame 41, a partition 42, a branch pipe 43, a solenoid valve 44, and a straight pipe 45. The partition 42 is vertically arranged inside the sealing frame 41, and the partitions 42 form independent sealing chambers. The front end of the sealing frame 41 is connected to the straight pipe 45 through the branch pipe 43, and the solenoid valve 44 is installed in the middle of the branch pipe 43. The number of branch pipes 43 and sealing chambers is the same as the number of heat sink embedding slot assembly 2. A sealing chamber is correspondingly arranged at the bottom of the heat sink embedding slot assembly 2, and a branch pipe 43 is correspondingly connected to the front end of the sealing chamber. The solenoid valve 44 in the middle of the branch pipe 43 controls whether the sealing chamber is evacuated.

[0045] A pressure sensor is installed inside the sealed cavity to monitor the air pressure inside the sealed cavity;

[0046] A sealing strip is provided at the connection between the sealing frame 41 and the partition plate 42 and the support plate 1 to ensure the sealing effect inside the sealing frame 1, thereby ensuring the adsorption effect on the heat sink.

[0047] When in use, first fix the device to the required plane position by the support block 5, then connect the straight pipe 45 to the external air pump, and use the air pump to evacuate and inject air into the straight pipe 45.

[0048] The heat sink to be processed is placed into the embedding slot 21. At this time, the bottom corners of the heat sink are supported by the top of the push rod 231 of the push rod assembly 23.

[0049] By opening the solenoid valve 44, the external air pump is controlled to draw air into the sealing frame 41 through the straight pipe 45 and the branch pipe 43, so that the sealing frame 41 generates negative pressure, which in turn attracts the heat sink placed in the embedded groove 21, causing the heat sink to move down, and by attracting the heat sink, the heat sink is fixed.

[0050] The heat sink moves down and pushes the horizontal plate 24 downward through the top rod 231. The horizontal plate 24 drives the vertical rod 264 of the elastic support rod 26 to move down through the offset detection component 25. The vertical rod 264 drives the slider 262 to compress the spring 263 to move down.

[0051] When the heat sink is attracted but not in a horizontal position, the four push rod assemblies 23 move down at different heights, causing the horizontal plate 24 to tilt. When the horizontal plate 24 tilts, it drives the ball bearing 252 and the pressing rod 255 to rotate, causing the pressing rod 255 to disengage from the micro switch 254, thereby triggering the micro switch 254. At this time, it is determined that the heat sink is not in a horizontal position, that is, the heat sink is not placed correctly. The corresponding indicator light 3 uses different colored lights to prompt the staff, so that the staff can adjust the heat sink in time and place it correctly and flat in the embedded groove 21.

[0052] After the heat sink is processed, the air pressure inside the sealing frame 41 is restored. The elastic potential energy generated by the spring 263 pushes the slider 262 and the vertical rod 264 to move upward, and drives the offset detection component 25 and the horizontal plate 24 to move upward. The horizontal plate 24 pushes the top rod 231 to move upward, and the top rod 231 lifts the heat sink embedded in the groove 21, making it easier for the staff to pick up the processed heat sink.

[0053] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0054] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A jig for producing a radiator, comprising a support plate (1), a bottom frame assembly (4) and a support block (5), wherein a heat sink embedding slot assembly (2) is provided on the support plate (1), the bottom frame assembly (4) is installed at the bottom of the support plate (1), and a support block (5) is fixed at the bottom corner of the support plate (1). Its features are: It also includes a heat sink embedding slot assembly (2), which includes an embedding slot (21), a through hole (22), a top rod assembly (23), a horizontal plate (24), an offset detection assembly (25), and an elastic support rod (26). The embedding slot (21) is opened on the top surface of the support plate (1). The bottom wall of the embedding slot (21) is provided with a through hole (22), and the through hole (22) is connected to the bottom frame assembly (4). The four corners of the bottom of the embedding slot (21) are vertically provided with top rod assemblies (23). The bottom end of the top rod assembly (23) extends into the bottom frame assembly (4), and the bottom end of the top rod assembly (23) is supported by the horizontal plate (24). The offset detection assembly (25) is installed in the middle of the bottom end of the horizontal plate (24). The bottom end of the offset detection assembly (25) is connected to the elastic support rod (26), and the bottom of the elastic support rod (26) is fixedly connected to the bottom frame assembly (4).

2. The jig for radiator manufacturing according to claim 1, characterized in that: The top rod assembly (23) includes a top rod (231), a limiting ring (232) and a universal ball (233). The limiting ring (232) is fixed in the middle of the outer wall of the top rod (231). The universal ball (233) is installed at the bottom end of the top rod (231). The top of the top rod (231) vertically penetrates the support plate (1), and the top end of the top rod (231) extends into the embedded groove (21). The bottom end of the universal ball (233) is slidably connected to the horizontal plate (24).

3. A jig for radiator manufacturing according to claim 2, characterized in that: The top height of the top rod (231) is lower than the top surface height of the support plate (1).

4. A jig for radiator manufacturing according to claim 1, characterized in that: The offset detection component (25) includes a ball bearing limiting frame (251), a ball bearing (252), a connecting frame (253), a micro switch (254), and a pressing rod (255). The ball bearing limiting frame (251) has a ball bearing (252) embedded in its inner center, and the inner wall of the ball bearing limiting frame (251) is slidably connected to the ball bearing (252). The bottom edge of the ball bearing limiting frame (251) is fixedly connected to the connecting frame (253). The micro switch (254) is vertically installed in the middle of the bottom inner side of the connecting frame (253). The pressing rod (255) is fixedly attached to the bottom of the ball bearing (252). The top of the ball bearing (252) is fixedly connected to the middle of the bottom of the horizontal plate (24). The bottom of the connecting frame (253) is fixedly connected to the elastic support rod (26).

5. A jig for radiator manufacturing according to claim 1, characterized in that: The elastic support rod (26) includes an outer frame (261), a slider (262), a spring (263), and a vertical rod (264). The slider (262) is provided on the top inner side of the outer frame (261). The outer frame (261) is vertically arranged, and the inner wall of the outer frame (261) is in contact with the slider (262). The bottom end of the slider (262) is elastically connected to the bottom inner end of the outer frame (261) through the spring (263). The bottom end of the vertical rod (264) extends into the outer frame (261) and is fixedly connected to the slider (262). The top end of the vertical rod (264) is fixedly connected to the connecting frame (253).

6. A jig for radiator manufacturing according to claim 1, characterized in that: An indicator light (3) is provided at the edge of the top surface of the support plate (1), and the number of indicator lights (3) is the same as that of the heat sink embedding slot assembly (2).

7. A jig for radiator manufacturing according to claim 1, characterized in that: The bottom frame assembly (4) includes a sealing frame (41), a partition (42), a branch pipe (43), a solenoid valve (44), and a straight pipe (45). The sealing frame (41) has a vertically arranged partition (42) inside, and independent sealing chambers are formed between the partitions (42). The front end of the sealing frame (41) is connected to the straight pipe (45) through the branch pipe (43), and a solenoid valve (44) is installed in the middle of the branch pipe (43). The number of branch pipes (43) and sealing chambers is the same as the number of heat sink embedding slot assemblies (2).

8. A jig for radiator manufacturing according to claim 1, characterized in that: The heat sink embedding slot assembly (2) also includes a filter (27) and a sealing plate (28). The filter (27) and the sealing plate (28) are respectively threaded to the through hole (22) at the bottom of the embedding slot (21). The filter (27) is provided with a filter screen inside.