MOS (Metal Oxide Semiconductor) tube heat-conducting silicone grease coating clamp

Abstract

The utility model discloses a heat-conducting silicone grease coating clamp for an MOS (Metal Oxide Semiconductor) tube, which belongs to the technical field of electronic component processing devices and comprises a supporting rack, a vertical guide structure, a lifting driving mechanism, a holder structure, a rotary driving mechanism and a clamping action mechanism, the vertical guide structure is arranged on the upper portion of the side face of the supporting rack, and the lifting driving mechanism is connected with the vertical guide structure. The holder structure is movably arranged below the vertical guide structure on the side face of the supporting rack, and the lifting driving mechanism is in driving connection with the holder structure; the rotation driving mechanism is connected to the side face of the holder structure, and the rotation driving mechanism is in driving connection with the clamping action mechanism. According to the utility model, the technical problem of how to improve the clamping convenience when the MOS tube is coated is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of electronic component processing equipment, and in particular to a MOS tube thermal grease coating fixture. Background Technology

[0002] In the field of common electronic components, MOSFETs are widely used; their full name is Metal-Oxide-Semiconductor Field-Effect Transistor, and they are an important type of semiconductor device. A MOSFET consists of three layers: a metal layer, an oxide layer, and a semiconductor layer. The metal layer serves as the gate, the semiconductor layer forms the source and drain, and the oxide layer acts as an insulating layer between the gate and the semiconductor layer. This structure allows the MOSFET to control the current between the source and drain by changing the gate voltage, thereby achieving functions such as signal amplification and switching control.

[0003] Applying thermal grease to MOSFETs is a crucial step in electronic heat dissipation. Its main purpose is to improve the heat dissipation efficiency of MOSFETs and other electronic components, preventing performance degradation or damage due to overheating. Before coating, the area on the heat sink that will contact the MOSFET is clearly marked for coating. Then, methods such as dot application, brushing, or screen printing are used to apply the grease. Different application methods are suitable for different coating areas and shapes; for example, the thermal grease can be evenly distributed across the entire contact surface by rubbing or scraping.

[0004] Based on this, Chinese patent CN218655304U discloses a coating mold, which includes a positioning plate and a carrier plate. The positioning plate has a plurality of spaced-apart first holes, each corresponding to a row of MOSFETs on a power board. The carrier plate is disposed within the first holes. The carrier plate has a plurality of spaced-apart mesh-like coating holes, each corresponding to a specific MOSFET in the row. The thickness of the carrier plate is less than the thickness of the positioning plate, and the bottom surface of the carrier plate is flush with the bottom surface of the positioning plate. In this patent's disclosed technical solution, by setting the mesh-like coating holes on the carrier plate and ensuring each mesh-like coating hole corresponds to a MOSFET, silicone grease can flow down from each mesh hole, thereby dispersing the silicone grease. This allows for more effective control of the amount of silicone grease coated, resulting in a more uniform distribution and improving the uniformity of the silicone grease coating.

[0005] However, the coating molds disclosed above still have a technical problem: they cannot adapt to different specifications of MOSFETs. Specifically, in industrialized batch automated operations, the coating process for each batch of thermal grease may require coating of MOSFETs of different sizes within the same batch. However, the coating molds disclosed in the existing technology can only accommodate MOSFETs of a single size. If multiple sizes of MOSFETs require coating simultaneously, manufacturers need to redesign the molds. Furthermore, typically, only a single plane of a MOSFET needs to be coated at a time; that is, the plane in contact with the heatsink usually needs to be coated with thermal grease. However, in some applications, multiple planes of the MOSFET need to be coated; or, after coating one plane of the MOSFET, another plane may be laser-engraved with a traceability code. The technical solutions disclosed in the existing patents cannot solve these current processing requirements. Utility Model Content

[0006] Therefore, it is necessary to provide a MOSFET thermal grease coating fixture to address the technical issue of how to improve the clamping convenience during MOSFET coating.

[0007] A MOSFET thermal grease coating fixture includes: a support frame, a vertical guide structure, a lifting drive mechanism, a gimbal structure, a rotation drive mechanism, and a clamping mechanism; the vertical guide structure is disposed on the upper side of the support frame, and the lifting drive mechanism is connected to the vertical guide structure; the gimbal structure is movably disposed below the vertical guide structure on the side of the support frame, and the lifting drive mechanism is drivenly connected to the gimbal structure; the rotation drive mechanism is connected to the side of the gimbal structure, and the rotation drive mechanism is drivenly connected to the clamping mechanism.

[0008] Furthermore, the vertical guide structure includes a vertical guide rail, several vertical sliding blocks, and a vertical hanger.

[0009] Furthermore, the vertical guide rail is fixedly connected to the side of the support frame, and a plurality of vertical sliding blocks are evenly arranged and movably connected to the vertical guide rail, with each vertical sliding block connected to the vertical hanger.

[0010] Furthermore, the lifting drive mechanism includes a lifting fixed frame, a lifting drive cylinder, a lifting telescopic rod, a lifting connecting part, a movable sleeve structure, and a stabilizer bar.

[0011] Furthermore, the lifting and fixing frame is fixedly installed on the side of the support frame, and the lifting drive cylinder is connected to the lifting and fixing frame.

[0012] Furthermore, the lifting telescopic rod is located below the lifting fixed frame, the lifting drive cylinder is driven by the lifting telescopic rod, and the lifting connection part is respectively connected to the lifting telescopic rod and the gimbal structure.

[0013] Furthermore, the two movable sleeve structures are respectively connected to the lifting fixed frame on both sides of the lifting drive cylinder; a stabilizing rod is correspondingly movably sleeved in each movable sleeve structure, and both ends of each stabilizing rod are respectively connected to the vertical hanger and the gimbal structure.

[0014] Furthermore, the rotary drive mechanism includes a rotary drive cylinder and a rotary shaft; the rotary drive cylinder is connected to the side of the gimbal structure, the rotary drive cylinder is driven by the rotary shaft, and the rotary shaft is connected to the clamping action mechanism.

[0015] Furthermore, the clamping mechanism includes a clamping drive cylinder, a clamping telescopic rod, a clamping linkage block, a gripper structure, and a limiting slot structure.

[0016] Furthermore, the clamping drive cylinder is connected to the rotating shaft, and a plurality of clamping telescopic rods are respectively poweredly connected to the two sides of the clamping drive cylinder. Each clamping telescopic rod on each side is correspondingly connected to a clamping linkage block. Each clamping linkage block is correspondingly connected to a gripper structure, and each gripper structure has a corresponding limiting slot structure on its side.

[0017] In summary, this utility model discloses a MOSFET thermal grease coating fixture comprising a support frame, a vertical guide structure, a lifting drive mechanism, a gimbal structure, a rotation drive mechanism, and a clamping mechanism. The vertical guide structure is located on the upper side of the support frame, and the lifting drive mechanism is connected to the vertical guide structure. The gimbal structure is movably positioned below the vertical guide structure on the side of the support frame, and the lifting drive mechanism is driven to the gimbal structure. The rotation drive mechanism is connected to the side of the gimbal structure and is driven to the clamping mechanism. This utility model's MOSFET thermal grease coating fixture can automatically adapt and clamp MOSFETs of different specifications, and can rotate and change the clamped components as needed; thus, it improves the clamping convenience during MOSFET coating. Therefore, this utility model's MOSFET thermal grease coating fixture solves the technical problem of how to improve the clamping convenience during MOSFET coating. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a MOS transistor thermal grease coating fixture according to the present invention;

[0019] Figure 2This is a schematic diagram of the structure of a MOS transistor thermal grease coating fixture from another direction according to this utility model;

[0020] Figure 3 This is a schematic diagram of another part of the structure of the MOS tube thermal grease coating fixture of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of a MOS tube thermal grease coating fixture from another direction according to this utility model. Detailed Implementation

[0022] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] Please refer to the following: Figures 1 to 4 This utility model discloses a MOS transistor thermal grease coating fixture, comprising: a support frame 1, a vertical guide structure 2, a lifting drive mechanism 3, a gimbal structure 4, a rotation drive mechanism 5, and a clamping action mechanism 6; the vertical guide structure 2 is disposed on the upper side of the support frame 1, and the lifting drive mechanism 3 is connected to the vertical guide structure 2; the gimbal structure 4 is movably disposed below the vertical guide structure 2 on the side of the support frame 1, and the lifting drive mechanism 3 is drivenly connected to the gimbal structure 4; the rotation drive mechanism 5 is connected to the side of the gimbal structure 4, and the rotation drive mechanism 5 is drivenly connected to the clamping action mechanism 6.

[0029] Specifically, when the MOS transistor thermal grease coating fixture of this invention is in operation, the MOS transistors to be coated are arranged on the conveyor line. After the lifting drive mechanism 3 is activated, it can lower the gimbal structure 4 to a preset height along the vertical guide structure 2, so that the rotation drive mechanism 5 and the clamping action mechanism 6 follow the gimbal structure 4 down to the preset height. At this time, the clamping action mechanism 6 is activated and clamps a group of MOS transistor components to be coated. Then, the lifting drive mechanism 3 drives the gimbal structure 4 to simultaneously raise each component and the MOS transistor components to another preset height. Next, after the external coating mechanism coats all the MOS transistor components with thermal grease, the rotation drive mechanism 5 is activated and drives the clamping action mechanism 6 to rotate the MOS transistor components to a preset angle, for example, 180 degrees or 90 degrees, and then the other plane of the MOS transistor components is coated with thermal grease or laser-engraved with traceability codes. Therefore, the MOS tube thermal grease coating fixture of this invention can automatically adapt and clamp MOS tubes of different specifications, and rotate and change the clamped components as needed; thus, it improves the clamping convenience during tube coating.

[0030] Furthermore, the vertical guide structure 2 has a vertical guide rail 201, a plurality of vertical sliding blocks 202 and a vertical hanger 203; the vertical guide rail 201 is fixedly connected to the side of the support frame 1, and the plurality of vertical sliding blocks 202 are evenly arranged and movably connected to the vertical guide rail 201, and each vertical sliding block 202 is connected to the vertical hanger 203.

[0031] Furthermore, the lifting drive mechanism 3 includes a lifting fixed frame 301, a lifting drive cylinder 302, a lifting telescopic rod 303, a lifting connecting part 304, a movable sleeve structure 305, and a stabilizing rod 306; the lifting fixed frame 301 is fixedly installed on the side of the support frame 1, and the lifting drive cylinder 302 is connected to the lifting fixed frame 301; the lifting telescopic rod 303 is installed below the lifting fixed frame 301, and the lifting drive cylinder 302 is drivenly connected to the lifting telescopic rod 303; the lifting connecting part 304 connects the lifting telescopic rod 303 and the gimbal structure 4 respectively; the two movable sleeve structures 305 are respectively connected to the lifting fixed frame 301 on both sides of the lifting drive cylinder 302; each movable sleeve structure 305 is correspondingly movably fitted with a stabilizing rod 306, and both ends of each stabilizing rod 306 are respectively connected to the vertical hanger 203 and the gimbal structure 4.

[0032] Specifically, when the lifting drive cylinder 302 is activated, it can drive the lifting telescopic rod 303 to extend or retract. When the lifting telescopic rod 303 extends, it can push the gimbal structure 4 downward; when the lifting telescopic rod 303 retracts, it can drive the gimbal structure 4 upward. To enhance the smoothness of the lifting and lowering movement of the gimbal structure 4, one end of each of the two sides of the lifting connection part 304 is connected to a stabilizing rod 306, and the other end of each stabilizing rod 306 moves through the movable sleeve structure 305 and is connected to the vertical hanger 203. The two stabilizing rods 306 can simultaneously move in conjunction with the vertical hanger 203. At the same time, the side of the vertical hanger 203 is connected to the vertical guide rail 201 through the vertical sliding block 202, so that when the gimbal structure 4 lifts and lowers, it can reciprocate along the vertical guide rail 201.

[0033] Furthermore, the rotary drive mechanism 5 includes a rotary drive cylinder 501 and a rotary shaft 502. The rotary drive cylinder 501 is connected to the side of the gimbal structure 4, and the rotary drive cylinder 501 is drivenly connected to the rotary shaft 502, which is connected to the clamping action mechanism 6. Specifically, the rotary drive cylinder 501 can follow the gimbal structure 4 in its lifting and lowering motion, thereby driving the clamping action mechanism 6 to simultaneously perform lifting and lowering motions. In addition, after the rotary drive cylinder 501 is activated, it can drive the clamping action mechanism 6 to rotate to a preset angle via the rotary shaft.

[0034] Furthermore, the clamping mechanism 6 includes a clamping drive cylinder 601, a clamping telescopic rod 602, a clamping linkage block 603, a gripper structure 604, and a limiting slot structure 605. The clamping drive cylinder 601 is connected to the rotating shaft 502. Several clamping telescopic rods 602 are respectively poweredly connected to both sides of the clamping drive cylinder 601. Each side of the clamping telescopic rod 602 is correspondingly connected to a clamping linkage block 603. Each clamping linkage block 603 is correspondingly connected to a gripper structure 604. Each side of the gripper structure 604 is correspondingly provided with a limiting slot structure 605.

[0035] Specifically, after the clamping drive cylinder 601 is activated, it can drive each of the clamping telescopic rods 602 to extend or retract from its two sides, thereby driving the clamping linkage block 603 to drive the two gripper structures 604 to achieve the clamping or releasing action requirements. Furthermore, each gripper structure 604 has a limiting slot structure 605 on its inner side, so that the limiting slot structure 605 provides auxiliary limiting when clamping materials such as MOS transistors.

[0036] In summary, this utility model discloses a MOSFET thermal grease coating fixture comprising a support frame 1, a vertical guide structure 2, a lifting drive mechanism 3, a gimbal structure 4, a rotation drive mechanism 5, and a clamping action mechanism 6. The vertical guide structure 2 is located on the upper side of the support frame 1, and the lifting drive mechanism 3 is connected to the vertical guide structure 2. The gimbal structure 4 is movably positioned below the vertical guide structure 2 on the side of the support frame 1, and the lifting drive mechanism 3 is drivenly connected to the gimbal structure 4. The rotation drive mechanism 5 is connected to the side of the gimbal structure 4 and is drivenly connected to the clamping action mechanism 6. This utility model's MOSFET thermal grease coating fixture can automatically adapt and clamp MOSFETs of different specifications, and can rotate and change the clamped components as needed; thus, it improves the clamping convenience during MOSFET coating. Therefore, this utility model's MOSFET thermal grease coating fixture solves the technical problem of how to improve the clamping convenience during MOSFET coating.

[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A MOSFET thermal grease coating fixture, characterized in that, It includes: support The support frame (1), vertical guide structure (2), lifting drive mechanism (3), gimbal structure (4), rotation drive mechanism (5), and clamping action mechanism (6) are provided on the upper side of the support frame (1). The vertical guide structure (2) is provided on the upper side of the support frame (1). The lifting drive mechanism (3) is connected to the vertical guide structure (2). The gimbal structure (4) is movably disposed on the side of the support frame (1) below the vertical guide structure (2). The lifting drive mechanism (3) is drivenly connected to the gimbal structure (4). The rotation drive mechanism (5) is connected to the side of the gimbal structure (4). The rotation drive mechanism (5) is drivenly connected to the clamping action mechanism (6).

2. The MOS transistor thermal grease coating fixture according to claim 1, characterized in that: The vertical guide structure (2) has a vertical guide rail (201), several vertical sliding blocks (202) and a vertical hanger (203).

3. The MOS transistor thermal grease coating fixture according to claim 2, characterized in that: The vertical guide rail (201) is fixedly connected to the side of the support frame (1), and a number of vertical sliding blocks (202) are evenly arranged and movably connected to the vertical guide rail (201). Each vertical sliding block (202) is connected to the vertical hanger (203).

4. The MOS transistor thermal grease coating fixture according to claim 3, characterized in that: The lifting drive mechanism (3) includes a lifting fixed frame (301), a lifting drive cylinder (302), a lifting telescopic rod (303), a lifting connecting part (304), a movable sleeve structure (305), and a stabilizer rod (306).

5. A MOS transistor thermal grease coating fixture according to claim 4, characterized in that: The lifting and fixing frame (301) is fixedly installed on the side of the support frame (1), and the lifting drive cylinder (302) is connected to the lifting and fixing frame (301).

6. The MOS transistor thermal grease coating fixture according to claim 5, characterized in that: The lifting telescopic rod (303) is disposed below the lifting fixed frame (301), the lifting drive cylinder (302) is drivenly connected to the lifting telescopic rod (303), and the lifting connection part (304) is respectively connected to the lifting telescopic rod (303) and the gimbal structure (4).

7. The MOS transistor thermal grease coating fixture according to claim 6, characterized in that: The two movable sleeve structures (305) are respectively connected to the lifting fixed frame (301) on both sides of the lifting drive cylinder (302); a stabilizing rod (306) is movably sleeved in each movable sleeve structure (305), and both ends of each stabilizing rod (306) are respectively connected to the vertical hanger (203) and the gimbal structure (4).

8. A MOS transistor thermal grease coating fixture according to claim 7, characterized in that: The rotary drive mechanism (5) has a rotary drive cylinder (501) and a rotary shaft (502); the rotary drive cylinder (501) is connected to the side of the gimbal structure (4), the rotary drive cylinder (501) is driven to the rotary shaft (502), and the rotary shaft (502) is connected to the clamping action mechanism (6).

9. A MOS transistor thermal grease coating fixture according to claim 8, characterized in that: The clamping mechanism (6) includes a clamping drive cylinder (601), a clamping telescopic rod (602), a clamping linkage block (603), a gripper structure (604), and a limiting slot structure (605).

10. A MOS transistor thermal grease coating fixture according to claim 9, characterized in that: The clamping drive cylinder (601) is connected to the rotating shaft (502), and a plurality of clamping telescopic rods (602) are respectively powered to the two sides of the clamping drive cylinder (601). Each clamping telescopic rod (602) on each side is connected to a clamping linkage block (603). Each clamping linkage block (603) is connected to a gripper structure (604), and a limiting slot structure (605) is provided on the side of each gripper structure (604).

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