Clamp for surface treatment of cooling fins

Abstract

The utility model belongs to the technical field of radiating fin surface treatment, and particularly relates to a radiating fin surface treatment clamp which comprises a base, supporting seats are fixedly connected to the two sides of the top of the base respectively, sleeves are fixedly connected to the two supporting seats respectively, piston blocks are arranged in the sleeves, movable rods are fixedly connected to the piston blocks, and the movable rods are fixedly connected to the top of the base respectively. One end of the movable rod is fixedly connected with a sleeve, the other end of the movable rod is fixedly connected with a clamping plate, a rubber pad is fixed to the clamping plate, a pressure gauge is assembled on the sleeve, a vent hole is formed in the end of the sleeve, and a sleeve pipe is fixedly connected to a port of the vent hole. When the cooling fins are fixed, the stability of the clamping pressure value can be guaranteed, the phenomenon of infirm clamping or excessive clamping is avoided, the phenomenon of displacement or shaking of the cooling fins in the surface treatment process is prevented, and therefore the surface treatment quality is improved, the phenomenon of deformation or damage of the cooling fins caused by excessive clamping can be avoided, and the service life of the cooling fins is prolonged. And the service life of the radiating fins is prolonged, and the subsequent radiating effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of heat sink surface treatment, in particular to a fixture for heat sink surface treatment. Background Technique

[0002] A heat sink is a metal sheet used for heat dissipation and is a key component for heat dissipation in an air-conditioning system. It is usually made of a metal material. When performing surface treatment on the heat sink, a fixture is usually required to fix the heat sink.

[0003] A Chinese patent with the publication number CN210757308U discloses a fixture for surface treatment of an air-conditioning heat sink, which relates to the technical field of surface treatment of an air-conditioning heat sink. It includes two symmetrically placed vertical support plates for the air-conditioning heat sink. A number of horizontal plates for the air-conditioning heat sink are fixed on the side surfaces of the vertical support plates for the air-conditioning heat sink, and the number of horizontal plates for the air-conditioning heat sink are arranged in a stepped structure from top to bottom in sequence. One end of a spring is fixed on the top side of the horizontal plate for the air-conditioning heat sink, a limiting rod is fixed on the bottom side of the fixing plate for the air-conditioning heat sink, and a through hole for the limiting rod penetrates through the upper surface of the horizontal plate for the air-conditioning heat sink; the combined use of the horizontal plate for the air-conditioning heat sink and the fixing plate for the air-conditioning heat sink provided by the utility model can conveniently clamp the air-conditioning heat sink, thereby facilitating subsequent surface treatment processes for the air-conditioning heat sink.

[0004] For the existing fixture for heat sink surface treatment, when fixing the heat sink, due to the unstable clamping pressure, it is easy to cause insecure clamping or excessive clamping. The former causes the heat sink to be displaced or shaken during the surface treatment process, thus affecting the quality of the surface treatment. The latter easily causes the heat sink to be deformed or damaged, thus affecting its service life and heat dissipation effect; therefore, a fixture for heat sink surface treatment is proposed for the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised in the above background technique, the utility model proposes a fixture for heat sink surface treatment.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: A fixture for surface treatment of a heat sink according to the present utility model includes a base. On both sides of the top of the base, support seats are fixedly connected. On both support seats, sleeves are fixedly connected. A piston block is arranged inside the sleeve. A movable rod is fixedly connected to the piston block, and the other end of the movable rod is fixedly connected to a clamping plate. A rubber pad is fixed on the clamping plate. A pressure gauge is assembled on the sleeve. An air vent is opened at the end of the sleeve. A sleeve is fixedly connected to the port of the air vent. Air outlet holes are opened on the circumferential surface of the sleeve. A pipe hole is opened on the sleeve, and a thin rod is inserted into the pipe hole. One end of the thin rod is fixedly connected to a movable block, and the movable block is arranged inside the sleeve. The other end of the thin rod is fixedly connected to a rod cap. A fixing frame is fixedly connected to the end of the sleeve. A threaded hole is opened on the fixing frame, and a threaded rod is rotatably assembled in the threaded hole. One end of the threaded rod is fixedly connected to a rotating cap, and the other end of the threaded rod is fixedly connected to a pressing cap. A first spring is fixedly connected between the pressing cap and the rod cap. Limiting rods are fixedly connected to both the pressing cap and the rod cap, and both limiting rods are arranged inside the first spring. A through port is opened on the base, and a collection box is fixedly connected to the bottom side of the port of the through port. An air pump is installed on the collection box. The output hole of the air pump is connected to an air delivery pipeline, and the other port of the air delivery pipeline is connected to the sleeve. A valve is assembled on the air delivery pipeline. When fixing the heat sink, it is necessary to first place the heat sink on the placement plate, and then start the air pump, so that the gas in the air tank flows into the sleeve through the air delivery pipeline. The high-pressure gas entering the sleeve pushes the piston block to move. Under the cooperation of the guiding rod, the movable rod drives the clamping plate to move stably, so that the two clamping plates approach each other, thereby being able to clamp and fix the heat sink. At the same time, the gas entering the sleeve also pushes the movable block to move, forcing the thin rod to push the rod cap to move, and the first spring is compressed under force. When the pressure value in the sleeve reaches the preset pressure value, at this time, the movable block is misaligned with the air outlet hole, causing the air outlet hole to open, so that the excess gas can be discharged through the air outlet hole, thereby being able to ensure the stability of the clamping pressure value, avoid the phenomenon of insecure clamping or excessive clamping, prevent the heat sink from shifting or shaking during the surface treatment process, thereby improving the quality of the surface treatment, and being able to avoid the phenomenon of deformation or damage of the heat sink caused by excessive clamping, prolong the service life of the heat sink, and ensure the subsequent heat dissipation effect.

[0007] Preferably, two fixing plates are fixedly connected to both sides of the top of the base. Each fixing plate is provided with a round hole, and a guiding rod is inserted through each round hole. One end of each guiding rod is fixedly connected to the clamping plate correspondingly, and an anti-detachment cap is fixedly connected to the other end of each guiding rod. A second spring is fixedly connected between the anti-detachment cap and the corresponding fixing plate, and the second spring is sleeved on the guiding rod. When clamping and fixing the heat sink, by arranging the guiding rod, the clamping plate can move more stably, improving the stability of the movement of the clamping plate. By arranging the second spring, during the process of discharging the gas in the sleeve, the guiding rod can drive the clamping plate to gradually reset.

[0008] Preferably, fixing columns are fixedly connected to both sides of the top of the base. Rotating rods are rotatably installed at the tops of the two fixing columns. Rotating discs are sleeved at the bottoms of the two rotating rods. Locking nuts are rotationally assembled on the upper ends of the rotating rods through threaded cooperation. Eccentric rods are fixedly connected to the rotating discs. Swing rods are sleeved on the eccentric rods, and the other ends of the swing rods are hinged to the clamping plate. When fixing the heat sink, as the clamping plate moves, with the cooperation of the swing rod, the rotating disc drives the eccentric rod to rotate. When the clamping plate clamps and fixes the heat sink, through the action of the locking nut, the rotating disc is fixed, so as to cooperate with the clamping mechanism to clamp the heat sink, and further improve the clamping stability.

[0009] Preferably, a rotating column is rotatably installed in the top port of the collection box. A plurality of placing plates are fixedly connected to the rotating column. Insertion holes are formed in both side walls of the collection box. Positioning insertion rods are inserted into the two insertion holes, and the ends of the positioning insertion rods are in contact with the placing plates. After the surface treatment of the heat sink is completed, the insertion rods are pulled out of the insertion holes, so that the placing plates are turned over, and thus the impurities remaining between the placing plates can be discharged and fall into the collection box for collection, which is convenient for cleaning the impurities remaining in the placing plates and avoiding affecting the next use.

[0010] The beneficial effects of the present utility model are as follows:

[0011] 1. When fixing the heat sink, it is necessary to first place the heat sink on the placement plate, and then start the air pump so that the gas in the gas tank flows into the sleeve through the air delivery pipeline. The high-pressure gas entering the sleeve pushes the piston block to move. With the cooperation of the guide rod, the movable rod drives the clamping plate to move stably, so that the two clamping plates approach each other, thereby clamping and fixing the heat sink. At the same time, the gas entering the sleeve will also push the movable block to move, forcing the thin rod to push the rod cap to move, and the first spring is compressed under force. When the pressure value in the sleeve reaches the preset pressure value, at this time, the movable block is misaligned with the air outlet hole, opening the air outlet hole, so that the excess gas can be discharged through the air outlet hole, thereby ensuring the stability of the clamping pressure value, avoiding the phenomenon of insecure clamping or over-clamping, preventing the heat sink from shifting or shaking during the surface treatment process, thereby improving the quality of surface treatment, and being able to avoid the phenomenon of deformation or damage of the heat sink caused by over-clamping, extending the service life of the heat sink, and ensuring the subsequent heat dissipation effect;

[0012] 2. After the surface treatment of the heat sink of the present invention is completed, the insertion rod is pulled out of the insertion hole, so that the placement plate is turned over, so that the impurities remaining between the placement plates can be discharged and fall into the collection box for collection, which is convenient for cleaning the impurities remaining in the placement plate and avoiding affecting the next use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0014] Figure 1 It is a schematic three-dimensional structure diagram of the whole device;

[0015] Figure 2 It is a schematic three-dimensional structure diagram of the clamping mechanism;

[0016] Figure 3 It is a schematic three-dimensional structure diagram of the clamping component;

[0017] Figure 4 It is a schematic three-dimensional sectional structure diagram of the sleeve and the casing;

[0018] Figure 5 It is a schematic three-dimensional sectional structure diagram of the casing;

[0019] Figure 6 It is a schematic three-dimensional structure diagram of the flipping mechanism.

[0020] In the figure: 1. base; 2. support seat; 3. sleeve; 4. piston block; 5. movable rod; 6. clamping plate; 7. rubber pad; 8. pressure gauge; 9. vent; 10. sleeve; 11. air outlet; 12. movable block; 13. thin rod; 14. rod cap; 15. fixing frame; 16. threaded rod; 17. rotating cap; 18. pressing cap; 19. first spring; 20. air pump; 21. gas pipeline; 22. valve; 23. fixing plate; 24. guide rod; 25. anti-drop cap; 26. second spring; 27. fixing column; 28. rotating rod; 29. rotating disk; 30. locking nut; 31. eccentric rod; 32. swing rod; 33. collecting box; 34. rotating column; 35. placement plate; 36. socket; 37. positioning plug rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3As shown in the figure, a fixture for surface treatment of a heat sink includes a base 1. On both sides of the top of the base 1, support seats 2 are fixedly connected. On both support seats 2, sleeves 3 are fixedly connected. Inside the sleeve 3, a piston block 4 is arranged. A movable rod 5 is fixedly connected to the piston block 4, and the other end of the movable rod 5 is fixedly connected to a clamping plate 6. A rubber pad 7 is fixed on the clamping plate 6. A pressure gauge 8 is assembled on the sleeve 3. An air vent 9 is opened at the end of the sleeve 3. A sleeve 10 is fixedly connected to the port of the air vent 9. Air outlet holes 11 are opened on the circumferential surface of the sleeve 10. A pipe hole is opened on the sleeve 10, and a thin rod 13 is inserted into the pipe hole. One end of the thin rod 13 is fixedly connected to a movable block 12, and the movable block 12 is arranged inside the sleeve 10. The other end of the thin rod 13 is fixedly connected to a rod cap 14. A fixing frame 15 is fixedly connected to the end of the sleeve 10. A threaded hole is opened on the fixing frame 15, and a threaded rod 16 is rotatably assembled in the threaded hole. One end of the threaded rod 16 is fixedly connected to a rotating cap 17, and the other end of the threaded rod 16 is fixedly connected to a pressing cap 18. A first spring 19 is fixedly connected between the pressing cap 18 and the rod cap 14. Limiting rods are fixedly connected to both the pressing cap 18 and the rod cap 14, and both limiting rods are arranged inside the first spring 19. A through port is opened on the base 1, and a collection box 33 is fixedly connected to the bottom side of the port of the through port. An air pump 20 is installed on the collection box 33. The output hole of the air pump 20 is connected to an air delivery pipeline 21, and the other port of the air delivery pipeline 21 is connected to the sleeve 3. A valve 22 is assembled on the air delivery pipeline 21; when fixing the heat sink, it is necessary to first place the heat sink on the placement plate 35, and then start the air pump 20, so that the gas in the air tank flows into the sleeve 3 through the air delivery pipeline 21. The high-pressure gas entering the sleeve 3 pushes the piston block 4 to move. With the cooperation of the guiding rod 24, the movable rod 5 drives the clamping plate 6 to move stably, so that the two clamping plates 6 approach each other until both clamping plates 6 are in contact with the two side walls of the heat sink. At this time, through the action of the locking nut 30, the rotating disk 29 is fixed, so that the heat sink can be clamped and fixed. By setting the rubber pad 7, the friction force between the heat sink and the clamping plate 6 can be increased, so that the clamping plate 6 clamps the heat sink more firmly. At the same time, the gas entering the sleeve 3 also pushes the movable block 12 to move, forcing the thin rod 13 to push the rod cap 14 to move, and the first spring 19 is compressed under force. When the pressure value in the sleeve 3 reaches the preset pressure value, at this time, the movable block 12 is misaligned with the air outlet hole 11, so that the air outlet hole 11 is opened, so that the excess gas can be discharged through the air outlet hole 11, so that the stability of the clamping pressure value can be ensured, avoiding the phenomenon of loose clamping or over-clamping, preventing the heat sink from shifting or shaking during the surface treatment process, thus improving the quality of the surface treatment, and being able to avoid the phenomenon of deformation or damage of the heat sink caused by over-clamping, extending the service life of the heat sink, and ensuring the subsequent heat dissipation effect.

[0023] On both sides of the top of the base 1, two fixing plates 23 are fixedly connected. Each fixing plate 23 is provided with a round hole. A guiding rod 24 is inserted through each round hole. One end of each guiding rod 24 is fixedly connected to the clamping plate 6 correspondingly. A retaining cap 25 is fixedly connected to the other end of each guiding rod 24. A second spring 26 is fixedly connected between the retaining cap 25 and the corresponding fixing plate 23, and the second spring 26 is sleeved on the guiding rod 24. When clamping and fixing the heat sink, by arranging the guiding rod 24, the clamping plate 6 can move more stably, improving the stability of the movement of the clamping plate 6. By arranging the second spring 26, during the process of discharging the gas in the sleeve 3, the guiding rod 24 can drive the clamping plate 6 to gradually reset.

[0024] Please refer to Figure 4 As shown, on both sides of the top of the base 1, fixing columns 27 are fixedly connected. The top ends of the two fixing columns 27 are rotatably installed with rotating rods 28. The bottom ends of the two rotating rods 28 are sleeved with rotating disks 29. The upper ends of the rotating rods 28 are rotationally assembled with locking nuts 30 by thread fitting. An eccentric rod 31 is fixedly connected to the rotating disk 29. A swinging rod 32 is sleeved on the eccentric rod 31, and the other end of the swinging rod 32 is hinged to the clamping plate 6. When fixing the heat sink, as the clamping plate 6 moves, with the cooperation of the swinging rod 32, the rotating disk 29 drives the eccentric rod 31 to rotate. When the clamping plate 6 clamps and fixes the heat sink, through the action of the locking nut 30, the rotating disk 29 is fixed, so as to cooperate with the clamping mechanism to clamp the heat sink and further improve the clamping stability.

[0025] Please refer to Figure 5 As shown, a rotating column 34 is rotatably installed in the top port of the collection box 33. A plurality of placing plates 35 are fixedly connected to the rotating column 34. Insertion holes 36 are opened on both side walls of the collection box 33. A positioning insertion rod 37 is inserted into each of the two insertion holes 36, and the end of the positioning insertion rod 37 abuts against the placing plate 35. After the surface treatment of the heat sink is completed, the positioning insertion rod 37 is pulled out of the insertion hole 36, so that the placing plate 35 turns over, and thus the impurities remaining between the placing plates 35 can be discharged and fall into the collection box 33 for collection, which is convenient for cleaning the impurities remaining in the placing plate 35 and avoiding affecting the next use.

[0026] Working principle: For the existing fixture for surface treatment of heat sinks, when fixing the heat sink, due to the unstable clamping pressure, it is easy to cause insecure clamping or over-clamping. The former causes the heat sink to be displaced or shaken during the surface treatment process, thus affecting the quality of the surface treatment. The latter easily causes the heat sink to be deformed or damaged, thus affecting its service life and heat dissipation effect. Therefore, in view of the above problems, a fixture for surface treatment of heat sinks is proposed. When fixing the heat sink, it is necessary to first place the heat sink on the placement plate 35, and then start the air pump 20, so that the gas in the gas tank flows into the sleeve 3 through the air delivery pipe 21. The high-pressure gas entering the sleeve 3 pushes the piston block 4 to move. With the cooperation of the guide rod 24, the movable rod 5 drives the clamping plate 6 to move stably, so that the two clamping plates 6 approach each other until both clamping plates 6 are in contact with the two side walls of the heat sink. As the clamping plate 6 moves, with the cooperation of the swing rod 32, the rotating disk 29 drives the eccentric rod 31 to rotate. When the clamping plate 6 clamps and fixes the heat sink, through the action of the locking nut 30, the rotating disk 29 is fixed, so that the heat sink can be clamped and fixed. By setting the rubber pad 7, the friction between the heat sink and the clamping plate 6 can be increased, so that the clamping plate 6 clamps the heat sink more firmly. At the same time, the gas entering the sleeve 3 also pushes the movable block 12 to move, forcing the thin rod 13 to push the rod cap 14 to move, and the first spring 19 is compressed under force. When the pressure value in the sleeve 3 reaches the preset pressure value, at this time, the movable block 12 is misaligned with the air outlet hole 11, so that the air outlet hole 11 is opened, so that the redundant gas can be discharged through the air outlet hole 11, thus ensuring the stability of the clamping pressure value, avoiding the phenomenon of insecure clamping or over-clamping, preventing the heat sink from being displaced or shaken during the surface treatment process, thus improving the quality of the surface treatment, and being able to avoid the phenomenon of heat sink deformation or damage caused by over-clamping, prolonging the service life of the heat sink, and ensuring the subsequent heat dissipation effect.

[0027] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0028] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed.

Claims

1. A fixture for surface treatment of a heat sink, characterized in that: It includes a base (1), on both sides of the top of the base (1), there are fixedly connected support seats (2), on each of the two support seats (2), there is fixedly connected a sleeve (3), inside the sleeve (3), there is arranged a piston block (4), on the piston block (4), there is fixedly connected a movable rod (5), and the other end of the movable rod (5) is fixedly connected to a clamping plate (6), on the clamping plate (6), there is fixed a rubber pad (7), on the sleeve (3), there is assembled a pressure gauge (8), at the end of the sleeve (3), there is opened a ventilation hole (9), at the port of the ventilation hole (9), there is fixedly connected a sleeve (10), on the circumferential surface of the sleeve (10), there are opened air outlet holes (11), on the sleeve (10), there is opened a pipe hole, inside the pipe hole, there is inserted a thin rod (13), one end of the thin rod (13) is fixedly connected to a movable block (12), and the movable block (12) is arranged inside the sleeve (10), the other end of the thin rod (13) is fixedly connected to a rod cap (14), at the end of the sleeve (10), there is fixedly connected a fixing frame (15), on the fixing frame (15), there is opened a threaded hole, inside the threaded hole, there is rotationally assembled a threaded rod (16), one end of the threaded rod (16) is fixedly connected to a rotating cap (17), the other end of the threaded rod (16) is fixedly connected to a pressing cap (18), between the pressing cap (18) and the rod cap (14), there is fixedly connected a first spring (19), on both the pressing cap (18) and the rod cap (14), there are fixedly connected limiting rods, both of the two limiting rods are arranged inside the first spring (19), on the base (1), there is opened a through port, at the bottom side of the port of the through port, there is fixedly connected a collection box (33), on the collection box (33), there is installed an air pump (20), the output hole of the air pump (20) is connected to an air delivery pipeline (21), and the other port of the air delivery pipeline (21) is connected to the sleeve (3), on the air delivery pipeline (21), there is assembled a valve (22).

2. The fixture for surface treatment of a heat sink according to claim 1, wherein: On both sides of the top of the base (1), there are fixedly connected two fixing plates (23), on each fixing plate (23), there is opened a round hole, inside each round hole, there is inserted a guiding rod (24), one end of each guiding rod (24) is correspondingly fixedly connected to the clamping plate (6), the other end of each guiding rod (24) is fixedly connected to an anti - detachment cap (25), and between the anti - detachment cap (25) and the corresponding fixing plate (23), there is fixedly connected a second spring (26), and the second spring (26) is sleeved on the guiding rod (24).

3. The jig for surface treatment of a heat sink according to claim 1, characterized in that: On both sides of the top of the base (1), there are fixedly connected fixing columns (27), at the top ends of the two fixing columns (27), there are rotatably installed rotating rods (28), at the bottom ends of the two rotating rods (28), there are sleeved rotating discs (29), at the upper ends of the rotating rods (28), through threaded fit, there are rotationally assembled locking nuts (30).

4. The fixture for surface treatment of a heat sink according to claim 3, characterized in that: On the rotating disc (29), there is fixedly connected an eccentric rod (31), on the eccentric rod (31), there is sleeved a swinging rod (32), and the other end of the swinging rod (32) is hinged to the clamping plate (6).

5. The fixture for surface treatment of a heat sink according to claim 1, characterized in that: Inside the top port of the collection box (33), there is rotatably installed a rotating column (34), on the rotating column (34), there are fixedly connected a plurality of placing plates (35).

6. The fixture for surface treatment of a heat sink according to claim 1, characterized in that: Jack holes (36) are formed in both side walls of the collection box (33), positioning insertion rods (37) are inserted in the two jack holes (36), and the end of the positioning insertion rod (37) abuts against the placement plate (35).

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