Automatic thermal grease smearing jig

Abstract

The utility model relates to the technical field of thermal grease smearing, in particular to an automatic thermal grease smearing jig which comprises a bottom plate and a U-shaped plate, the U-shaped plate is arranged above the bottom plate, a threaded rod is rotatably connected to the interior of the U-shaped plate, a connecting block is connected to the exterior of the threaded rod in a threaded mode, a scraping plate is fixedly connected to one side of the connecting block, through holes are formed in the scraping plate at equal intervals, and the through holes are communicated with the bottom plate. A transmission groove is formed in one side of the interior of the U-shaped plate, one end of the threaded rod extends into the transmission groove and is fixedly connected with a first bevel gear, and the bottom of the U-shaped plate is fixedly connected with a first motor. The thermal grease smearing device has the advantages that rotation of the threaded rod is achieved through driving of the first motor, then the connecting block and the scraping plate are driven to move, it is ensured that thermal grease is evenly smeared, local overheating can be avoided when the thermal grease is evenly smeared, it is ensured that an electronic device works within the safe temperature range, damage and faults caused by overheating are reduced, and the working efficiency is improved. Compared with a traditional device, the operation quality and the use efficiency are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat dissipation paste smearing technical field especially, relate to a kind of automatic heat dissipation paste smearing fixture. BACKGROUND

[0002] In modern electronic equipment, efficient thermal management is one of the key factors to ensure its performance and reliability, and heat dissipation paste (thermal conductive silicone grease) as a common thermal interface material (TIM) is widely used in the heat conduction between various electronic devices and heat sinks.

[0003] However, most of the current market heat dissipation paste smearing fixture has certain limitations, especially in uniform smearing, which seriously affects the heat dissipation effect and long-term stability of the equipment.

[0004] The current market heat dissipation paste smearing fixture often appears uneven smearing problem in practical application, due to the precision and consistency of the equipment is not enough, leading to some areas of heat dissipation paste too thick, while some areas are too thin, and there may be areas that are not smeared, manual smearing heat dissipation paste can control the uniformity of smearing to some extent, but its efficiency is low, easy to be affected by the skill and fatigue of the operator, difficult to maintain high quality and high efficiency in large-scale production.

[0005] In view of the above problems, we launch a kind of automatic heat dissipation paste smearing fixture. CONTENT OF THE UTILITY MODEL

[0006] The utility model discloses a kind of automatic heat dissipation paste smearing fixture, to solve the technical problem in background art.

[0007] To achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A kind of automatic heat dissipation paste smearing fixture, including bottom plate and U-shaped plate, the U-shaped plate is set on the top of bottom plate, the inside rotationally connected of U-shaped plate is with threaded rod, the outside of threaded rod is connected with connecting block, the side of connecting block is fixedly connected with scraper, the inside of scraper is equidistantly set with through hole, the side of U-shaped plate inside is set with transmission groove, one end of threaded rod extends to the inside of transmission groove and is fixedly connected with first bevel gear, the bottom of U-shaped plate is fixedly connected with first motor, the output shaft of first motor extends to the inside of transmission groove and is fixedly connected with second bevel gear, second bevel gear is meshed with first bevel gear.

[0009] The transmission groove is arranged on one side of the inner side of the U-shaped plate, one end of the threaded rod extends into the transmission groove and is fixedly connected with the first bevel gear, the first motor at the bottom of the U-shaped plate extends into the transmission groove through the output shaft and is fixedly connected with the second bevel gear, the rotation of the threaded rod is realized through the driving of the first motor, and then the movement of the connecting block and the scraper is driven, so that the uniform application of the heat dissipation paste is ensured, the automation of the heat dissipation paste application is realized, the uniformity and efficiency of the application are improved, and the device is suitable for large-scale production.

[0010] In a preferred scheme, the top of the bottom plate is fixedly connected with a support frame, the top of the support frame is fixedly connected with an air cylinder, and the output end of the air cylinder extends into the inside of the support frame and is fixedly connected with the top of the U-shaped plate.

[0011] The air cylinder is arranged to enable the jig to adapt to workpieces of different heights, ensure that the scraper is in close contact with the surface of the workpiece, and improve the precision and reliability of the application.

[0012] In a preferred scheme, the top of the scraper is fixedly connected with a connecting pipe, one end of the connecting pipe extends into the inside of the corresponding through hole, and the end of the connecting pipe away from the through hole is connected with an external feeding device.

[0013] The connecting pipe is arranged to transport the heat dissipation paste in the external feeding device to the through hole of the scraper, so that the continuous supply of the heat dissipation paste is ensured.

[0014] In a preferred scheme, the top of the bottom plate is provided with a sliding groove, a lead screw is rotatably connected in the sliding groove, two sliding blocks are threadedly connected to the outside of the lead screw, clamping plates are fixedly connected to the top of the sliding blocks, a second motor is fixedly connected to one side of the bottom plate, and the output shaft of the second motor extends into the inside of the sliding groove and is fixedly connected with one end of the lead screw.

[0015] The left and right movement of the sliding blocks and the clamping plates is realized through the driving of the second motor, the stable fixation of the workpiece is ensured, the jig can adapt to workpieces of different sizes, the stability and precision of the workpiece during the application process are ensured, and the adaptability and flexibility of the jig are improved.

[0016] In a preferred scheme, first limiting rods are fixedly connected to the inside of the U-shaped plate and located on both sides of the threaded rod, and the connecting blocks are slidably connected with the first limiting rods.

[0017] The first limiting rods are arranged to prevent the connecting blocks from deviating or being stuck during movement, improve the reliability and application precision of the jig, and ensure the uniform application of the heat dissipation paste.

[0018] In a preferred scheme, second limiting rods are fixedly connected to the top of the U-shaped plate and located on both sides of the air cylinder, and the second limiting rods are slidably connected with the support frame.

[0019] By setting the second limiting rod as the guide and limiting action for the movement of the cylinder, the stability of the cylinder in the working process is ensured.

[0020] In a preferred scheme, the top of the bottom plate and the two sides of the sliding groove are fixedly connected with limiting strips, the clamping plates are in sliding connection with the limiting strips, and the side close to each other of the two clamping plates is fixedly connected with a non-slip pad.

[0021] By setting the limiting strip as the guide and limiting action for the movement of the clamping plate, the stability and linearity of the clamping plate in the sliding process are ensured, and the non-slip pad increases the friction with the surface of the workpiece, so that the workpiece is prevented from sliding or falling off during clamping.

[0022] The automatic heat dissipation paste smearing jig provided by the utility model has the following advantages:

[0023] In the utility model, the rotation of the threaded rod is realized through the driving of the first motor, and the movement of the connecting block and the scraper is driven, so that the uniform smearing of the heat dissipation paste is ensured, on one hand, the uniform smearing of the heat dissipation paste can avoid local overheating, ensure that the electronic device works in a safe temperature range, reduce damage and failure caused by overheating, on the other hand, the uniform smearing of the heat dissipation paste can ensure that each device shows consistent heat dissipation performance under the same operating condition, improve the reliability and stability of the product, and greatly improve the operation quality and use efficiency compared with the traditional device. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a first perspective three-dimensional schematic view of the automatic heat dissipation paste smearing jig.

[0025] Figure 2 It is a second perspective three-dimensional schematic view of the automatic heat dissipation paste smearing jig.

[0026] Figure 3 It is a U-shaped plate section view schematic view of the automatic heat dissipation paste smearing jig.

[0027] Figure 4 It is a screw structure schematic view of the automatic heat dissipation paste smearing jig.

[0028] Figure 5 It is a U-shaped plate structure schematic view of the automatic heat dissipation paste smearing jig.

[0029] Figure 6 It is Figure 3 It is an enlarged view of A in the middle.

[0030] In the drawings: 1, bottom plate; 2, U-shaped plate; 3, threaded rod; 4, connecting block; 5, scraper; 6, through hole; 7, transmission groove; 8, first bevel gear; 9, first motor; 10, second bevel gear; 11, support frame; 12, air cylinder; 13, connecting pipe; 14, sliding groove; 15, screw rod; 16, sliding block; 17, clamping plate; 18, second motor; 19, first limiting rod; 20, second limiting rod; 21, limiting strip; 22, non-slip pad. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and indicated in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0032] The automatic heat paste smearing jig disclosed by the utility model is mainly applied to the scene of heat paste smearing.

[0033] Referring to Figure 3 and Figure 6 An automatic heat paste smearing jig, comprising a bottom plate 1 and a U-shaped plate 2, the U-shaped plate 2 is arranged above the bottom plate 1, a threaded rod 3 is rotatably connected in the U-shaped plate 2, a connecting block 4 is threadedly connected to the threaded rod 3, a scraper 5 is fixedly connected to one side of the connecting block 4, through holes 6 are equidistantly formed in the scraper 5, a transmission groove 7 is formed in one side of the U-shaped plate 2, a first bevel gear 8 is fixedly connected to one end of the threaded rod 3 and extends into the transmission groove 7, a first motor 9 is fixedly connected to the bottom of the U-shaped plate 2, a second bevel gear 10 is fixedly connected to the output shaft of the first motor 9 and extends into the transmission groove 7, and the second bevel gear 10 is meshingly connected with the first bevel gear 8.

[0034] In the embodiment, the transmission groove 7 is formed in one side of the U-shaped plate 2, one end of the threaded rod 3 extends into the transmission groove 7 and is fixedly connected with the first bevel gear 8, the first motor 9 at the bottom of the U-shaped plate 2 extends into the transmission groove 7 through the output shaft and is fixedly connected with the second bevel gear 10, the rotation of the threaded rod 3 is realized through the driving of the first motor 9, the movement of the connecting block 4 and the scraper 5 is further driven, the uniform smearing of the heat paste is ensured, the automation of the heat paste smearing is realized, the uniformity and efficiency of smearing are improved, and the automatic heat paste smearing jig is suitable for large-scale production.

[0035] Referring to Figure 1 andFigure 5 In one preferred embodiment, one side of the top of the bottom plate 1 is fixedly connected with a support frame 11, the top of the support frame 11 is fixedly connected with a pneumatic cylinder 12, the output end of the pneumatic cylinder 12 extends to the inside of the support frame 11 and is fixedly connected with the top of the U-shaped plate 2.

[0036] In this embodiment, the pneumatic cylinder 12 enables the jig to adapt to workpieces of different heights, ensures that the scraper 5 is in close contact with the surface of the workpiece, and improves the accuracy and reliability of the coating.

[0037] Referring to Figure 1 and Figure 3 In one preferred embodiment, the top of the scraper 5 is fixedly connected with a connecting pipe 13, one end of the connecting pipe 13 extends to the inside of the corresponding through hole 6, and the end of the connecting pipe 13 away from the through hole 6 is connected with an external feeding device.

[0038] In this embodiment, the connecting pipe 13 is used to transport the heat dissipation paste in the external feeding device to the through hole 6 of the scraper 5, ensuring continuous supply of the heat dissipation paste.

[0039] Referring to Figure 1 and Figure 4 In one preferred embodiment, the top of the bottom plate 1 is provided with a sliding groove 14, a lead screw 15 is rotatably connected in the inside of the sliding groove 14, two sliding blocks 16 are threadedly connected to the outside of the lead screw 15, the top of each sliding block 16 is fixedly connected with a clamping plate 17, one side of the bottom plate 1 is fixedly connected with a second motor 18, and the output shaft of the second motor 18 extends to the inside of the sliding groove 14 and is fixedly connected with one end of the lead screw 15.

[0040] In this embodiment, the left and right movement of the sliding blocks 16 and the clamping plates 17 is realized through the driving of the second motor 18, ensuring the stable fixation of the workpiece, enabling the jig to adapt to workpieces of different sizes, ensuring the stability and accuracy of the workpiece during the coating process, and improving the adaptability and flexibility of the jig.

[0041] Referring to Figure 2 and Figure 3 In one preferred embodiment, the inside of the U-shaped plate 2 and located on both sides of the threaded rod 3 are fixedly connected with first limiting rods 19, and the connecting blocks 4 are slidingly connected with the first limiting rods 19.

[0042] In this embodiment, the first limiting rods 19 prevent the connecting blocks 4 from deviating or being stuck during movement, improving the reliability and coating accuracy of the jig and ensuring uniform coating of the heat dissipation paste.

[0043] Referring to Figure 1 and Figure 5In a preferred implementation, the top of the U-shaped plate 2 and on both sides of the air cylinder 12 are fixedly connected with the second limiting rods 20, and the second limiting rods 20 are slidingly connected with the support frame 11.

[0044] In this embodiment, the second limiting rods 20 provide guiding and limiting effects for the movement of the air cylinder 12, thereby ensuring the stability of the air cylinder 12 during the operation.

[0045] Referring to Figure 1 and Figure 4 In a preferred implementation, the top of the bottom plate 1 and on both sides of the sliding groove 14 are fixedly connected with the limiting strips 21, the clamping plates 17 are slidingly connected with the limiting strips 21, and the side close to each other of the two clamping plates 17 is fixedly connected with the anti-skid pads 22.

[0046] In this embodiment, the limiting strips 21 provide guiding and limiting effects for the movement of the clamping plates 17, thereby ensuring the stability and linearity of the clamping plates 17 during the sliding process, and the anti-skid pads 22 increase the friction with the surface of the workpiece, thereby preventing the workpiece from sliding or falling off during the clamping process.

[0047] Working principle: in use, the target object to be coated with the heat dissipation paste, such as an IGBT module, an electronic component, etc., is placed on the bottom plate 1, and is ready for clamping and coating operation, the second motor 18 is started, the output shaft drives the screw rod 15 to rotate, the two sliding blocks 16 move towards each other in the sliding groove 14, and drive the two clamping plates 17 to move towards each other, the anti-skid pads 22 on the clamping plates 17 are pressed against the two sides of the target object, thereby achieving stable clamping of the target object, the first motor 9 is started, the output shaft drives the second bevel gear 10 to rotate, the second bevel gear 10 drives the threaded rod 3 to rotate through the meshing transmission with the first bevel gear 8, the rotation of the threaded rod 3 makes the connecting block 4 move horizontally in the sliding groove 14 inside the U-shaped plate 2 through the threaded connection, thereby driving the scraper 5 to move, the external feeding device delivers the heat dissipation paste into the through hole 6 of the scraper 5 through the connecting pipe 13, and the heat dissipation paste in the through hole 6 is evenly coated on the surface of the target object during the horizontal movement of the scraper 5, the output end of the air cylinder 12 is extended and retracted, thereby driving the U-shaped plate 2 to move in the vertical direction, the movement of the U-shaped plate 2 adjusts the height of the scraper 5, thereby ensuring that the distance between the scraper 5 and the surface of the target object is appropriate, preventing the scraper 5 from excessive contact or insufficient contact, the first motor 9, the air cylinder 12 and the second motor 18 are electrically connected with the external control device, and the uniform coating of the heat dissipation paste can ensure that each device exhibits consistent heat dissipation performance under the same operating conditions, thereby improving the reliability and stability of the product, and greatly improving the operation quality and use efficiency compared with the traditional device.

[0048] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. According to the technical solution and the inventive concept of the present application, equivalent replacement or change should be covered in the protection scope of the present application.

Claims

1. An automatic thermal paste smearing jig comprising a base plate (1) and a U-shaped plate (2), characterized in that, The U-shaped plate (2) is arranged above the bottom plate (1), the inside of the U-shaped plate (2) is rotatably connected with a threaded rod (3), the outside of the threaded rod (3) is threadedly connected with a connecting block (4), one side of the connecting block (4) is fixedly connected with a scraper (5), a plurality of through holes (6) are equidistantly arranged in the inside of the scraper (5), a transmission groove (7) is arranged on one side of the inside of the U-shaped plate (2), one end of the threaded rod (3) extends into the inside of the transmission groove (7) and is fixedly connected with a first bevel gear (8), a first motor (9) is fixedly connected to the bottom of the U-shaped plate (2), the output shaft of the first motor (9) extends into the inside of the transmission groove (7) and is fixedly connected with a second bevel gear (10), and the second bevel gear (10) is meshedly connected with the first bevel gear (8).

2. The automatic thermal paste application tool according to claim 1, wherein One side of the top of the bottom plate (1) is fixedly connected with a support frame (11), the top of the support frame (11) is fixedly connected with an air cylinder (12), and the output end of the air cylinder (12) extends into the inside of the support frame (11) and is fixedly connected with the top of the U-shaped plate (2).

3. The automatic thermal paste application tool according to claim 1, wherein The top of the scraper (5) is fixedly connected with a connecting pipe (13), one end of the connecting pipe (13) extends into the inside of the corresponding through hole (6), and the other end of the connecting pipe (13) is connected with an external feeding device.

4. The automatic thermal paste application tool according to claim 1, wherein, The top of the bottom plate (1) is provided with a sliding groove (14), the inside of the sliding groove (14) is rotatably connected with a lead screw (15), the outside of the lead screw (15) is threadedly connected with two sliding blocks (16), the top of each of the sliding blocks (16) is fixedly connected with a clamping plate (17), one side of the bottom plate (1) is fixedly connected with a second motor (18), and the output shaft of the second motor (18) extends into the inside of the sliding groove (14) and is fixedly connected with one end of the lead screw (15).

5. The automatic thermal paste application tool according to claim 1, wherein The inside of the U-shaped plate (2) and located on both sides of the threaded rod (3) are fixedly connected with first limiting rods (19), and the connecting blocks (4) are slidably connected with the first limiting rods (19).

6. The automatic thermal paste application tool according to claim 2, wherein The top of the U-shaped plate (2) and located on both sides of the air cylinder (12) are fixedly connected with second limiting rods (20), and the second limiting rods (20) are slidably connected with the support frame (11).

7. The automatic thermal paste application tool according to claim 4, wherein The top of the bottom plate (1) and located on both sides of the sliding groove (14) are fixedly connected with limiting strips (21), the clamping plates (17) are slidably connected with the limiting strips (21), and one side of each of the two clamping plates (17) is fixedly connected with an antiskid pad (22).

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