Anti-deformation welding fixture for heat-conducting sheet

Abstract

The application discloses a kind of heat conduction sheet anti-deformation welding fixture, it is related to shot blasting machine technical field, including: shot blasting chamber, further including: fixed on the support of shot blasting chamber, and support is slidably connected with sling by track, the shot blasting chamber is fixed with several shot blasting machines, and shot blasting chamber is fixed with screw conveyor, and screw conveyor side is provided with bucket elevator, the discharge end of screw conveyor is located in bucket elevator;And, fixed on the support frame of shot blasting chamber, the support frame is fixed with processing box, and processing box is provided with screening mechanism, and screening mechanism is used to screen the impurities contained in projectile;And, air separation mechanism is arranged on the processing box, and the fine impurities contained in projectile are screened out by air separation mechanism;The application is directly and effectively avoided by the arrangement of screening mechanism that large particle size impurities and broken pellet re-enter the interior of shot blasting chamber, and it can play a good protective effect on each component in shot blasting chamber.

Description

Technical Field

[0001] This invention relates to the field of welding fixture technology, specifically to a welding fixture for preventing deformation of heat-conducting sheets. Background Technology

[0002] Thermal conductive sheets are important components in electronic devices used to transfer heat. They are usually soldered onto a thermally conductive substrate to ensure thermal stability. During the batch soldering process of thermal conductive sheets, welding fixtures are usually used to position and clamp the thermal conductive sheets to prevent them from shifting during the soldering process.

[0003] Current welding fixtures have limitations in operation, only able to hold one heat-conducting plate at a time for welding. However, in actual production, radiators are usually equipped with a large number of heat-conducting plates, which means that workers need to frequently disassemble and re-clamp the heat-conducting plates during batch welding. This not only increases labor intensity but also reduces overall processing efficiency and affects the smoothness of the production schedule. Moreover, most existing welding fixtures can only be used to fix heat-conducting plates and heat-conducting substrates of fixed sizes and specifications, with poor adaptability to heat-conducting plates of different sizes and thicknesses. The fixtures also lack adjustment flexibility and cannot meet diverse processing needs. Summary of the Invention

[0004] The purpose of this invention is to provide a heat-conducting sheet anti-deformation welding fixture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a heat-conducting sheet anti-deformation welding fixture, comprising a fixture base; further comprising: a height adjustment component disposed on the rear side of the fixture base, the height adjustment component being used for welding heat-conducting sheets of different heights, the top of the height adjustment component being fixed with a positioning plate; and a plurality of partitions fixed on the front side of the positioning plate, the plurality of partitions being arranged in a linear array, with clamping grooves provided between the plurality of partitions, each clamping groove being provided with a corresponding clamping component, the clamping component being used to clamp and fix the side of the heat-conducting sheet placed in the clamping groove; and limiting components disposed on both sides of the fixture base, the limiting components being used to limit the position of the heat-conducting sheet substrate to be welded, ensuring that the heat-conducting sheet substrate is placed in a preset welding position.

[0006] Preferably, the clamping assembly includes a clamping plate, one end of which is fixed with a sliding block. The sliding block and the positioning plate are slidably connected through each other. Multiple sliding blocks are arranged in an array on one side of the positioning plate. A linkage component for synchronously moving multiple sliding blocks is installed on the rear side of the positioning plate.

[0007] Preferably, the linkage includes multiple drive rods arranged horizontally parallel to the positioning plate, a drive stud is fixed between two adjacent drive rods, the drive stud is threadedly connected to the sliding block, a connecting rod is fixed at the end of the drive stud at both ends of the positioning plate, the connecting plate is rotatably connected to the positioning plate through a bearing seat, and a handwheel is fixed at the other end of the connecting rod.

[0008] Preferably, the height adjustment assembly includes telescopic plates fixed on both sides of the bottom of the positioning plate, a sleeve plate slidably sleeved on the bottom of the telescopic plate, a connecting block fixed on one side of the sleeve plate, the connecting block slidably connected to a groove opened on the sleeve plate, a connecting plate fixed at the end of the connecting plate away from the sleeve plate, and a lifting component being drivenly connected at the middle position of the connecting plate.

[0009] Preferably, the lifting component includes a vertically arranged lead screw, a fixed plate parallel to the lead screw is provided on one side, the bottom of the fixed plate is fixedly connected to the clamp base, both ends of the lead screw are rotatably connected to the fixed plate through bearing seats, a second handwheel is fixed to the upper end of the lead screw, and a nut block is threadedly connected to the external of the lead screw, the nut block is fixedly connected to the connecting plate.

[0010] Preferably, the limiting component includes two limiting plates symmetrically distributed on both sides of the fixture base. A U-shaped plate is fixed to one end of the limiting plate, a driving plate is fixed to one end of the U-shaped plate, a driving stud is threaded to one end of the driving plate, a handwheel is fixed to one end of the driving stud, a limiting slider is fixed to the bottom of the limiting plate, and a limiting groove adapted to the limiting slider is provided on the fixture base.

[0011] Preferably, there are two symmetrically distributed drive studs, the threads of the two drive studs are opposite, and a transmission rod is fixed between the two drive studs. The transmission rod is rotatably connected to the inner side of the fixture base through a bearing.

[0012] Preferably, the clamping plate has a cavity inside, and the cavity is filled with coolant. A liquid filling pipe is fixed on the top of the clamping plate, and multiple heat-conducting pads are provided on the side of the clamping plate near the heat-conducting sheet.

[0013] Preferably, the thermal pad is made of thermally conductive silicone material and is tightly attached to the sidewall of the thermal pad.

[0014] Preferably, a buffer pad is fixed to the side of the limiting plate near the heat-conducting substrate, and the buffer pad is made of rubber.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention uses multiple partitions to divide the front side of the positioning plate into multiple independent clamping slots, which can simultaneously clamp and fix multiple heat-conducting sheets individually. This allows for batch welding of multiple heat-conducting sheets in one go, eliminating the need for repeated disassembly and assembly of the heat-conducting sheets and effectively improving the welding efficiency of the heat-conducting sheets.

[0016] This invention allows for adjustment of the overall height of the positioning plate via a height adjustment component, accommodating heat-conducting sheets of different heights for clamping and fixing. Simultaneously, the clamping component allows for synchronous adjustment of the position of each clamping plate, accommodating heat-conducting sheets of different thicknesses for clamping. In conjunction with a limiting component, the position of heat-conducting sheet substrates of different widths can be limited, thus meeting diverse welding processing needs.

[0017] This invention utilizes a cooling liquid inside the clamping plate in conjunction with a thermally conductive pad made of thermally conductive silicone material to quickly dissipate the heat absorbed by the heat-conducting sheet during the welding process. This prevents excessive heat in the welding area from causing thermal deformation of the heat-conducting sheet, thereby further improving the forming quality of the heat-conducting sheet after welding. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention from another perspective; Figure 3 This is a schematic diagram of the clamping assembly of the present invention; Figure 4 This is a schematic diagram of the linkage component of the present invention; Figure 5 for Figure 4 Enlarged schematic diagram of the structure of region A in the middle; Figure 6 This is a schematic diagram of the height adjustment component of the present invention; Figure 7 This is a schematic diagram showing the relationship between the telescopic plate and the sleeve plate of the present invention; Figure 8 This is a schematic diagram of the structure of the limiting component of the present invention; Figure 9 This is a schematic diagram of the clamping plate of the present invention.

[0019] In the diagram: 1. Fixture base; 2. Height adjustment assembly; 3. Positioning plate; 4. Partition plate; 5. Clamping groove; 6. Clamping assembly; 7. Limiting assembly; 8. Clamping plate; 9. Sliding block; 10. Linkage component; 11. Drive rod; 12. Drive stud one; 13. Connecting rod; 14. Handwheel one; 15. Telescopic plate; 16. Sleeve plate; 17. Connecting block; 18. Connecting plate; 19. Lifting component; 20. Lead screw; 21. Fixing plate; 22. Handwheel two; 23. Nut block; 24. Limiting plate; 25. U-shaped plate; 26. Drive plate; 27. Drive stud two; 28. Handwheel three; 29. ​​Limiting slider; 30. Limiting groove; 31. Transmission rod; 32. Cavity; 33. Liquid filling pipe; 34. Thermal pad; 35. Buffer pad. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figure 1 - Figure 9 The figure shows a heat-conducting sheet anti-deformation welding fixture, including a fixture base 1; further including: a height adjustment component 2 disposed on the rear side of the fixture base 1, the height adjustment component 2 being used for welding heat-conducting sheets of different heights, the top of the height adjustment component 2 being fixed with a positioning plate 3; and a plurality of partitions 4 fixed on the front side of the positioning plate 3, the plurality of partitions 4 being arranged in a linear array, the plurality of partitions 4 being provided with clamping grooves 5, each of the clamping grooves 5 being provided with a corresponding clamping component 6, the clamping component 6 being used to clamp and fix the side of the heat-conducting sheet placed in the clamping groove 5; and limiting components 7 disposed on both sides of the fixture base 1, the limiting components 7 being used to limit the position of the heat-conducting sheet substrate to be welded, ensuring that the heat-conducting sheet substrate is placed in a preset welding position.

[0022] In this solution, multiple partitions 4 divide the front side of the positioning plate 3 into multiple independent clamping slots 5. During use, multiple heat-conducting sheets to be welded can be inserted into each clamping slot 5. Then, multiple sets of clamping components 6 move synchronously towards one side of the partitions 4 to clamp and fix the sides of multiple heat-conducting sheets at the same time. After that, the distance between the two limiting plates 24 is adjusted by the limiting components 7 to limit the position of both sides of the heat-conducting sheet substrate. After the bottom of the heat-conducting sheet is attached and fixed to the substrate, the welding operation can be carried out. This fixture can complete the batch welding of multiple heat-conducting sheets at one time without repeatedly disassembling and replacing the heat-conducting sheets, effectively improving the welding processing efficiency of the heat-conducting sheets.

[0023] For further details, please refer to [link / reference]. Figure 3 - Figure 5 The clamping assembly 6 includes a clamping plate 8, one end of which is fixed with a sliding block 9. The sliding block 9 and the positioning plate 3 are slidably connected. Multiple sliding blocks 9 are arranged in an array on one side of the positioning plate 3. A linkage 10 for synchronously moving multiple sliding blocks 9 is installed on the rear side of the positioning plate 3.

[0024] The linkage 10 includes a plurality of drive rods 11 arranged horizontally parallel to the positioning plate 3. A drive stud 12 is fixed between two adjacent drive rods 11. The drive stud 12 is threadedly connected to the sliding block 9. A connecting rod 13 is fixed at the ends of the drive studs 12 located at both ends of the positioning plate 3. The connecting plate 18 is rotatably connected to the positioning plate 3 through a bearing seat. A handwheel 14 is fixed at the other end of the connecting rod 13.

[0025] In this solution, when it is necessary to clamp heat-conducting sheets of different thicknesses, turning the handwheel 14 will drive the connecting rod 13 to rotate. The connecting rod 13 will simultaneously drive multiple drive rods 11 and drive studs 12 to rotate. Each drive stud 12 will simultaneously drive the sliding block 9 connected to it to move laterally along the positioning plate 3, thereby driving each clamping plate 8 to move closer or further away, thereby adjusting the distance between the clamping plate 8 and the partition plate 4.

[0026] It should be noted that by setting the clamping component 6, the position of each clamping plate 8 can be adjusted synchronously, so that the width of each clamping slot 5 changes at the same time. There is no need to adjust each clamping plate 8 separately. This can not only adapt to the clamping of heat-conducting sheets of different thicknesses, but also reduce the adjustment operation steps and improve the adjustment efficiency.

[0027] For further details, please refer to [link / reference]. Figure 6 and Figure 7 The height adjustment component 2 includes telescopic plates 15 fixed on both sides of the bottom of the positioning plate 3. A sleeve plate 16 is slidably sleeved on the bottom of the telescopic plate 15. A connecting block 17 is fixed on one side of the sleeve plate 16. The connecting block 17 is slidably connected to a groove opened on the sleeve plate 16. A connecting plate 18 is fixed at one end away from the sleeve plate 16. A lifting component 19 is drivenly connected at the middle position of the connecting plate 18.

[0028] The lifting component 19 includes a vertically arranged lead screw 20. A fixed plate 21 is provided on one side of the lead screw 20 and is distributed parallel to it. The bottom of the fixed plate 21 is fixedly connected to the clamp base 1. Both ends of the lead screw 20 are rotatably connected to the fixed plate 21 through bearing seats. A handwheel 22 is fixed at the upper end of the lead screw 20. A nut block 23 is threadedly connected to the outside of the lead screw 20. The nut block 23 is fixedly connected to the connecting plate 18.

[0029] It should be noted that since different devices use heat-conducting sheets of different sizes, the height of the heat-conducting sheets is also different. At this time, by setting the height adjustment component 2, the overall height of the positioning plate 3 can be adjusted. Turning the handwheel 22 will drive the lead screw 20 to rotate. The rotation of the lead screw 20 drives the nut block 23 to rise and fall along the lead screw 20, thereby driving the connecting plate 18, the sleeve plate 16 and the top positioning plate 3 to rise and fall as a whole. This adapts to the clamping and fixing of heat-conducting sheets of different height specifications, expanding the applicability of the clamp.

[0030] For further details, please refer to [link / reference]. Figure 8 The limiting component 7 includes two limiting plates 24 symmetrically distributed on both sides of the clamp base 1. A U-shaped plate 25 is fixed to one end of the limiting plate 24, a driving plate 26 is fixed to one end of the U-shaped plate 25, a driving stud 27 is threaded to one end of the driving plate 26, a handwheel 28 is fixed to one end of the driving stud 27, a limiting slider 29 is fixed to the bottom of the limiting plate 24, and a limiting groove 30 adapted to the limiting slider 29 is provided on the clamp base 1.

[0031] There are two drive studs 27 symmetrically distributed, the threads of the two drive studs 27 are opposite, and a transmission rod 31 is fixed between the two drive studs 27. The transmission rod 31 is rotatably connected to the inner side of the clamp base 1 through a bearing.

[0032] It should be noted that by setting the limiting component 7, the two drive studs 27 with opposite rotation directions can be rotated by turning the handwheel 28 to drive the two drive studs 27 to rotate synchronously, thereby driving the two U-shaped plates 25 to move towards each other or away from each other, thereby driving the two limiting plates 24 to adjust the spacing synchronously, adapting to the position limitation of heat-conducting sheet substrates of different widths, ensuring that the substrate is placed in the preset welding position, and meeting diverse welding processing needs.

[0033] It should also be noted that a buffer pad 35 is fixed on the side of the limiting plate 24 near the heat-conducting sheet substrate. The buffer pad 35 is made of rubber material, which can provide cushioning when clamping and fixing the heat-conducting sheet substrate, avoid rigid clamping from causing pressure damage to the substrate surface, and increase friction to improve the stability of the substrate after placement.

[0034] The process for welding batches of heat-conducting sheets in this solution is as follows: First, adjust the height of the positioning plate 3 by turning handwheel 22 according to the actual height of the heat-conducting sheet, so that the top of the positioning plate 3 is lower than the top of the heat-conducting sheet and then fix it. Then turn handwheel 328 to adjust the two limiting plates 24 to the spacing that matches the width of the heat-conducting sheet substrate, and then place the heat-conducting sheet substrate between the two limiting plates 24 to complete the position limitation of the substrate. Next, insert multiple heat-conducting plates into each clamping slot 5 in sequence, and then turn the handwheel 14 to drive multiple clamping plates 8 to move synchronously to the side wall of the heat-conducting plate until each heat-conducting plate is stably clamped in the clamping slot 5. At this time, the bottom of each heat-conducting plate is aligned with the preset welding position of the heat-conducting plate substrate, and multiple heat-conducting plates can be batch welded.

[0035] Example 2: Refer to Figure 9 As shown, this embodiment further explains the first embodiment, the difference being that the structure of the clamping plate 8 is optimized.

[0036] Specifically, the clamping plate 8 has a cavity 32 inside, and the cavity 32 is filled with coolant. A liquid filling pipe 33 is fixed on the top of the clamping plate 8. Multiple heat-conducting pads 34 are provided on the side of the clamping plate 8 near the heat-conducting sheet. The heat-conducting pads 34 are made of thermally conductive silicone material and are tightly attached to the side wall of the heat-conducting sheet.

[0037] It should be noted that the coolant inside the clamping plate 8, together with the thermal pad 34 made of thermally conductive silicone, can quickly dissipate the heat absorbed by the heat-conducting sheet during the welding process, preventing the heat from continuously accumulating at the clamping position and causing thermal deformation of the heat-conducting sheet. This allows excess heat to be removed in time during the welding operation, eliminating the need for additional cooling processes that would take up processing time, and further improving the forming quality of the heat-conducting sheet after welding.

[0038] In this solution, the coolant continuously absorbs the heat dissipated by the heat-conducting pad 34, which can maintain the heat-conducting sheet in a stable low temperature state, avoid warping and deformation of the heat-conducting sheet after welding due to high temperature stress, and ensure the flatness of the heat-conducting sheet after welding. At the same time, the liquid filling pipe 33 can easily add or replace the coolant to maintain a stable heat absorption and cooling effect.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the 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 invention, the scope of which is defined by the appended technical solutions and their equivalents.

Claims

1. A heat-conducting sheet anti-deformation welding fixture, comprising: Fixture base (1); Its characteristic is that it further includes: A height adjustment assembly (2) is provided on the rear side of the fixture base (1). The height adjustment assembly (2) is used for welding heat-conducting sheets of different heights. A positioning plate (3) is fixed to the top of the height adjustment assembly (2); and, Multiple partitions (4) are fixed to the front side of the positioning plate (3). The multiple partitions (4) are arranged in a linear array. Clamping grooves (5) are provided between the multiple partitions (4). Each clamping groove (5) is provided with a clamping component (6). The clamping component (6) is used to clamp and fix the side of the heat-conducting sheet placed in the clamping groove (5); and, The limiting components (7) are provided on both sides of the fixture base (1). The limiting components (7) are used to limit the position of the heat-conducting substrate to be welded, so as to ensure that the heat-conducting substrate is placed in the preset welding position.

2. The heat-conducting sheet anti-deformation welding fixture according to claim 1, characterized in that: The clamping assembly (6) includes a clamping plate (8), one end of which is fixed with a sliding block (9). The sliding block (9) and the positioning plate (3) are slidably connected. Multiple sliding blocks (9) are arranged in an array on one side of the positioning plate (3). A linkage component (10) for synchronously moving multiple sliding blocks (9) is installed on the rear side of the positioning plate (3).

3. The heat-conducting sheet anti-deformation welding fixture according to claim 2, characterized in that: The linkage component (10) includes multiple drive rods (11) arranged horizontally parallel to the positioning plate (3). A drive stud (12) is fixed between two adjacent drive rods (11). The drive stud (12) is threadedly connected to the sliding block (9). A connecting rod (13) is fixed at the ends of the drive studs (12) located at both ends of the positioning plate (3). The connecting plate (18) is rotatably connected to the positioning plate (3) through a bearing seat. A handwheel (14) is fixed at the other end of the connecting rod (13).

4. The heat-conducting sheet anti-deformation welding fixture according to claim 3, characterized in that: The height adjustment assembly (2) includes telescopic plates (15) fixed on both sides of the bottom of the positioning plate (3). A sleeve plate (16) is slidably sleeved on the bottom of the telescopic plate (15). A connecting block (17) is fixed on one side of the sleeve plate (16). The connecting block (17) is slidably connected to the groove opened on the sleeve plate (16). A connecting plate (18) is fixed at one end away from the sleeve plate (16). A lifting component (19) is connected to the middle position of the connecting plate (18).

5. The heat-conducting sheet anti-deformation welding fixture according to claim 4, characterized in that: The lifting component (19) includes a vertically arranged lead screw (20). A fixed plate (21) is provided on one side of the lead screw (20) and is distributed parallel to it. The bottom of the fixed plate (21) is fixedly connected to the clamp base (1). Both ends of the lead screw (20) are rotatably connected to the fixed plate (21) through bearing seats. A handwheel (22) is fixed at the upper end of the lead screw (20). A nut block (23) is threadedly connected to the outside of the lead screw (20). The nut block (23) is fixedly connected to the connecting plate (18).

6. The heat-conducting sheet anti-deformation welding fixture according to claim 1, characterized in that: The limiting component (7) includes two limiting plates (24) symmetrically distributed on both sides of the fixture base (1). A U-shaped plate (25) is fixed to one end of the limiting plate (24), a driving plate (26) is fixed to one end of the U-shaped plate (25), a driving stud (27) is threaded to one end of the driving plate (26), a handwheel (28) is fixed to one end of the driving stud (27), a limiting slider (29) is fixed to the bottom of the limiting plate (24), and a limiting groove (30) adapted to the limiting slider (29) is provided on the fixture base (1).

7. The heat-conducting sheet anti-deformation welding fixture according to claim 6, characterized in that: There are two symmetrically distributed drive studs (27), the threads of the two drive studs (27) are opposite, and a transmission rod (31) is fixed between the two drive studs (27). The transmission rod (31) is rotatably connected to the inner side of the clamp base (1) through a bearing.

8. The heat-conducting sheet anti-deformation welding fixture according to claim 2, characterized in that: The clamping plate (8) has a cavity (32) inside, and coolant is embedded in the cavity (32). A liquid filling pipe (33) is fixed on the top of the clamping plate (8). Multiple heat-conducting pads (34) are provided on the side of the clamping plate (8) near the heat-conducting sheet.

9. A heat-conducting sheet anti-deformation welding fixture according to claim 8, characterized in that: The thermal pad (34) is made of thermally conductive silicone material and is tightly attached to the sidewall of the thermal pad.

10. A heat-conducting sheet anti-deformation welding fixture according to claim 6, characterized in that: The limiting plate (24) has a buffer pad (35) fixed on the side near the heat-conducting substrate. The buffer pad (35) is made of rubber.

Images