Heat dissipation bottom plate grinding device

Abstract

The utility model belongs to the field of bottom plate polishing, and particularly relates to a heat dissipation bottom plate polishing device which comprises a first supporting seat. A plurality of electric push rods are fixedly connected to the top of the first supporting seat; the output ends of the adjacent electric push rods are fixedly connected with second supporting bases. A plurality of connecting rods are rotationally connected to the bottom of the second supporting seat; the middle part of the connecting rod is fixedly connected with a second gear; the end part of the connecting rod is fixedly connected with a first telescopic rod; the end of the first telescopic rod is fixedly connected with a second grinding wheel. A first grinding wheel and a second grinding wheel can be driven to move together when a second supporting seat gets close to the heat dissipation bottom plate, and when the second grinding wheel grinds the heat dissipation bottom plate, the first grinding wheel can continue to enter the heat dissipation bottom plate until the heat dissipation bottom plate can be ground, so that the device grinds uneven parts of the surface of the heat dissipation bottom plate at the same time; and the time needed by polishing of the device is shortened, and the polishing uniformity of different areas on the surface of the heat dissipation bottom plate is improved.

Description

Technical Field

[0001] The utility model relates to the field of bottom plate grinding, in particular to a heat dissipation bottom plate grinding device. Background Art

[0002] A heat sink is a device used to dissipate heat, usually in electronic or mechanical equipment to help dissipate excess heat and keep the equipment running at a normal temperature. The heat sink is usually made of metal or thermally conductive material, and its surface has high thermal conductivity, which can quickly transfer heat to other heat dissipation components or air.

[0003] The grinding of the heat sink base plate usually uses professional grinding equipment, including grinders, grinders, polishers, etc. These equipment can be customized according to the shape and size of the heat sink base plate, and have high-efficiency and high-precision grinding capabilities.

[0004] When the existing grinding device is grinding the heat dissipation base plate, due to the irregular shape of the heat dissipation base plate, it is necessary to perform multiple grinding and trimming to ensure its surface quality and stability, which takes a lot of time and money and reduces the production efficiency of the enterprise.

[0005] Therefore, in order to solve the above problems, a heat dissipation bottom plate grinding device is proposed. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a heat dissipation base plate grinding device described in the utility model comprises a first support seat; a plurality of electric push rods are fixedly connected to the top of the first support seat; the output ends of the adjacent electric push rods are fixedly connected to the second support seat; a motor is fixedly connected to the top of the second support seat; a rotating shaft is fixedly connected to the output end of the motor; the rotating shaft and the second support seat are connected by a shaft seal; a first grinding wheel is fixedly connected to the end of the rotating shaft; a first gear is fixedly connected to the middle of the rotating shaft; a plurality of connecting rods are rotatably connected to the bottom of the second support seat; a second gear is fixedly connected to the middle of the connecting rod; the second gear is in meshing relationship with the first gear; a first telescopic rod is fixedly connected to the end of the connecting rod; A second grinding wheel is fixedly connected to the end of the first telescopic rod; a first spring is fixedly connected to the end of the second gear; the first spring and the second grinding wheel are both fixedly connected; a fixing groove is provided on the top of the first support seat; when the second support seat approaches the heat dissipation base plate, it will move with the first grinding wheel and the second grinding wheel, and when the first grinding wheel moves, the second grinding wheel will be compressed after contacting the heat dissipation base plate due to the force applied to the first telescopic rod and the first spring, and the second grinding wheel will stop moving and grind the heat dissipation base plate, and finally the first grinding wheel will grind the heat dissipation base plate, thereby realizing that the device can grind the uneven parts of the surface of the heat dissipation base plate at the same time, shortening the time required for grinding the device, and improving the uniformity of grinding different areas of the surface of the heat dissipation base plate.

[0008] Preferably, an elastic cloth is fixedly connected to the bottom of the second support seat; a counterweight ring is fixedly connected to the bottom of the elastic cloth; a plurality of magnetic iron sheets are fixedly connected to the middle of the elastic cloth; the second grinding wheel is located inside the elastic cloth; through the cooperation of the elastic cloth and the magnetic iron sheets, the second support seat will bring the elastic cloth and the magnetic iron sheets together to the heat dissipation base plate when approaching the heat dissipation base plate, and the by-products generated during the grinding of the device will splash onto the surface of the elastic cloth and then be fixed by the suction force of the magnetic iron sheets, thereby reducing the waste residue remaining on the surface of the device and improving the convenience of cleaning the device.

[0009] Preferably, a plurality of second telescopic rods are slidably connected to the middle part of the second support seat; the second telescopic rod is fixedly connected to a second spring at the end facing away from the first grinding wheel; the second spring and the second support seat are both fixedly connected; the second telescopic rod is located inside the elastic cloth; through the cooperation of the second telescopic rod and the second spring, when the second support seat approaches the heat dissipation base plate, the second telescopic rod will be squeezed with the heat dissipation base plate and then slide along the second support seat, and the second spring will exert pressure on the second telescopic rod after being extended by force to drive the second telescopic rod to fix the heat dissipation base plate, thereby enhancing the fixing effect of the device on the heat dissipation base plate, reducing the shaking of the heat dissipation base plate during grinding, and improving the stability of the heat dissipation base plate during grinding. At the same time, the second telescopic rod can also play a supporting and limiting role on the elastic cloth, reducing the bending curvature of the elastic cloth when the second support seat moves, and reducing the influence of the elastic cloth on the device.

[0010] Preferably, a suction cup is fixedly connected to the bottom of the second telescopic rod; an exhaust hole is opened at the bottom of the suction cup; by providing the suction cup, when the second telescopic rod approaches the heat dissipation base plate, the suction cup will come into contact with the heat dissipation base plate and exhaust the air in the suction cup, thereby increasing the contact area between the second telescopic rod and the heat dissipation base plate, enhancing the fixing effect of the device on the heat dissipation base plate, and also reducing the direct contact between the second telescopic rod and the heat dissipation base plate, thereby reducing the damage to the heat dissipation base plate caused by direct contact with the second telescopic rod.

[0011] Preferably, a pull rope is fixed between adjacent second telescopic rods; the pull rope is located inside the elastic cloth; by providing the pull rope, when the second telescopic rod comes into contact with the heat dissipation base plate, the pull rope will come into contact with the heat dissipation base plate, thereby increasing the friction between the device and the heat dissipation base plate, allowing the device to more firmly fix the heat dissipation base plate, and reducing the shaking of the heat dissipation base plate during grinding.

[0012] Preferably, a plurality of fan blades are fixedly connected to the middle of the rotating shaft; the fan blades are of an arc-shaped structure; by arranging the fan blades, the fan blades will rotate together with the rotating shaft when rotating, and the fan blades will blow air to cool the surface of the heat dissipation base plate when rotating, thereby reducing the heat generated when the surface of the heat dissipation base plate is polished, and reducing the possibility of deformation or damage of the heat dissipation base plate due to overheating.

[0013] Preferably, a plurality of bristles are fixedly connected to the middle portion of the pull rope; by providing the bristles, when the second support seat approaches the heat dissipation base plate, the bristles will come into contact and friction with the heat dissipation base plate, thereby reducing dust and impurities on the surface of the heat dissipation base plate, enabling the device to clean the surface of the heat dissipation base plate, and improving the smoothness of the surface of the heat dissipation base plate.

[0014] The utility model is beneficial in that:

[0015] 1. The heat dissipation base plate grinding device described in the utility model will move with the first grinding wheel and the second grinding wheel when the second supporting seat approaches the heat dissipation base plate. When the first grinding wheel moves, the second grinding wheel will be compressed after contacting the heat dissipation base plate due to the force applied to the first telescopic rod and the first spring. The second grinding wheel will stop moving and grind the heat dissipation base plate. Finally, the first grinding wheel will grind the heat dissipation base plate, thereby realizing the simultaneous grinding of uneven parts of the heat dissipation base plate surface by the device, shortening the time required for grinding the device, and improving the uniformity of grinding different areas of the heat dissipation base plate surface.

[0016] 2. The heat dissipation base plate polishing device described in the utility model, through the cooperation of the elastic cloth and the magnetic iron sheet, when the second support seat approaches the heat dissipation base plate, it will bring the elastic cloth and the magnetic iron sheet together to the heat dissipation base plate, and the by-products generated during the grinding of the device will splash onto the surface of the elastic cloth and then be fixed by the suction force of the magnetic iron sheet, thereby reducing the waste residue remaining on the surface of the device and improving the convenience of cleaning the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the main body of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the elastic cloth in the utility model;

[0020] Figure 3 It is a structural schematic diagram of the first gear in the utility model;

[0021] Figure 4 It is a structural schematic diagram of the second telescopic rod in the utility model.

[0022] In the figure: 1. first support seat; 102. electric push rod; 103. second support seat; 104. motor; 105. rotating shaft; 106. first gear; 107. first grinding wheel; 108. connecting rod; 109. second gear; 110. first telescopic rod; 111. first spring; 112. second grinding wheel; 113. fixing groove; 2. elastic cloth; 22. counterweight ring; 23. magnetic iron sheet; 3. second telescopic rod; 32. second spring; 4. suction cup; 42. exhaust hole; 5. pull rope; 6. fan blades; 7. bristles. DETAILED DESCRIPTION

[0023] 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.

[0024] Specific examples are given below.

[0025] See also Figures 1 to 3As shown, a heat dissipation base plate grinding device described in an embodiment of the utility model comprises a first support seat 1; a plurality of electric push rods 102 are fixedly connected to the top of the first support seat 1; a second support seat 103 is fixedly connected to the output end of the adjacent electric push rods 102; a motor 104 is fixedly connected to the top of the second support seat 103; a rotating shaft 105 is fixedly connected to the output end of the motor 104; the rotating shaft 105 and the second support seat 103 are connected by a shaft seal; a first grinding wheel 107 is fixedly connected to the end of the rotating shaft 105; a first gear 106 is fixedly connected to the middle of the rotating shaft 105; a plurality of connecting rods 108 are rotatably connected to the bottom of the second support seat 103; the connecting rods 108 A second gear 109 is fixedly connected to the middle of the connecting rod 108; the second gear 109 is in meshing relationship with the first gear 106; the end of the connecting rod 108 is fixedly connected to the first telescopic rod 110; the end of the first telescopic rod 110 is fixedly connected to the second grinding wheel 112; the end of the second gear 109 is fixedly connected to the first spring 111; the first spring 111 and the second grinding wheel 112 are both in a fixed relationship; a fixing groove 113 is opened on the top of the first support seat 1; when working, the heat dissipation base plate is placed inside the fixing groove 113 and then the device is started, and then the electric push rod 102 will control the second support seat 103 to approach the heat dissipation base plate, and the motor 104 will drive the rotating shaft 10 5 rotates, the rotating shaft 105 will rotate with the first gear 106, because of the meshing relationship, the first gear 106 will drive the second gear 109 to rotate, and the second gear 109 will drive the second grinding wheel 112 to rotate together when rotating, and then when the first grinding wheel 107 comes into contact with the heat dissipation base plate, the first grinding wheel 107 will continue to extend along the shape of the heat dissipation base plate, and the second grinding wheel 112 will grind the heat dissipation base plate after coming into contact with the heat dissipation base plate, and the second grinding wheel 112 will also be subjected to the pressure applied by the heat dissipation base plate and then transmit the pressure to the first spring 111, and the first spring 111 will be continuously compressed after being subjected to the force until the first grinding wheel 107 is completely in contact with the heat dissipation base plate. , and finally the second grinding wheel 112 and the first grinding wheel 107 will grind the heat dissipation base plate at the same time; when the second support seat 103 approaches the heat dissipation base plate, it will move with the first grinding wheel 107 and the second grinding wheel 112. When the first grinding wheel 107 moves, the second grinding wheel 112 will be compressed after contacting the heat dissipation base plate due to the force of the first telescopic rod 110 and the first spring 111, and the second grinding wheel 112 will stop moving and grind the heat dissipation base plate. Finally, the first grinding wheel 107 grinds the heat dissipation base plate, thereby realizing the simultaneous grinding of uneven parts of the heat dissipation base plate surface by the device, shortening the time required for the device to grind, and improving the uniformity of grinding different areas of the heat dissipation base plate surface.

[0026] See also Figure 2As shown, the bottom of the second support seat 103 is fixed with an elastic cloth 2; the bottom of the elastic cloth 2 is fixed with a counterweight ring 22; the middle of the elastic cloth 2 is fixed with a plurality of magnetic iron sheets 23; the second grinding wheel 112 is located inside the elastic cloth 2; when the second support seat 103 approaches the heat dissipation base plate, due to the fixed relationship, the elastic cloth 2 and the counterweight ring 22 will be connected to the magnetic iron sheet 23 and approach the first support seat 1 together. When the counterweight ring 22 reaches the top of the first support seat 1, the counterweight ring 22 will be subjected to the pressure of the first support seat 1 and transmitted to the counterweight ring 22. At this time, the counterweight ring 22 will be in a bent state. The waste residue generated when 107 and the second grinding wheel 112 grind the heat dissipation base plate will splash onto the surface of the elastic cloth 2. Due to the suction force of the magnetic iron sheet 23, the waste residue will be adsorbed on the surface of the elastic cloth 2 by the magnetic iron sheet 23, thereby realizing the interception and collection of the waste residue during grinding by the device; through the cooperation of the elastic cloth 2 and the magnetic iron sheet 23, the second support seat 103 will bring the elastic cloth 2 and the magnetic iron sheet 23 together to the heat dissipation base plate when approaching the heat dissipation base plate, and the by-products generated when the device is grinded will splash onto the surface of the elastic cloth 2 and then be fixed by the suction force of the magnetic iron sheet 23, thereby reducing the waste residue remaining on the surface of the device and improving the convenience of cleaning the device.

[0027] See also Figure 2 and Figure 4 As shown, a plurality of second telescopic rods 3 are slidably connected to the middle part of the second support seat 103; a second spring 32 is fixedly connected to the end of the second telescopic rod 3 facing away from the first grinding wheel 107; the second spring 32 is fixedly connected to the second support seat 103; the second telescopic rod 3 is located inside the elastic cloth 2; when the second support seat 103 approaches the heat dissipation base plate, the second telescopic rod 3 will also approach the heat dissipation base plate, and when the second telescopic rod 3 contacts the heat dissipation base plate, it will slide relative to the second spring 32 under the pressure of the heat dissipation base plate, and then the second spring 32 will be in a stretched state and will release elastic potential energy, and the second spring 32 will apply pressure toward the heat dissipation base plate to the second telescopic rod 3 to achieve The fixing effect of the heat dissipation base plate; through the cooperation of the second telescopic rod 3 and the second spring 32, when the second support seat 103 approaches the heat dissipation base plate, the second telescopic rod 3 will be squeezed with the heat dissipation base plate and then slide along the second support seat 103, and the second spring 32 will exert pressure on the second telescopic rod 3 after being extended by the force to drive the second telescopic rod 3 to fix the heat dissipation base plate, thereby enhancing the fixing effect of the device on the heat dissipation base plate, reducing the shaking of the heat dissipation base plate during grinding, and improving the stability of the heat dissipation base plate during grinding. At the same time, the second telescopic rod 3 can also support and limit the elastic cloth 2, reduce the bending curvature of the elastic cloth 2 when the second support seat 103 moves, and reduce the influence of the elastic cloth 2 on the device.

[0028] See also Figure 4As shown, a suction cup 4 is fixedly connected to the bottom of the second telescopic rod 3; an exhaust hole 42 is opened at the bottom of the suction cup 4; when the second telescopic rod 3 comes into contact with the heat dissipation base plate, the suction cup 4 will also come into contact with the heat dissipation base plate, and when the suction cup 4 comes into contact with the heat dissipation base plate, the air in the suction cup 4 will be discharged through the exhaust hole 42, and then the suction cup 4 will be adsorbed and fixed to the heat dissipation base plate; by providing the suction cup 4, when the second telescopic rod 3 approaches the heat dissipation base plate, the suction cup 4 will come into contact with the heat dissipation base plate and the air in the suction cup 4 will be discharged, thereby increasing the contact area between the second telescopic rod 3 and the heat dissipation base plate, enhancing the fixing effect of the device on the heat dissipation base plate, and at the same time reducing the direct contact between the second telescopic rod 3 and the heat dissipation base plate, thereby reducing the damage to the heat dissipation base plate caused by direct contact with the second telescopic rod 3.

[0029] See also Figure 2 and Figure 4 As shown, a pull rope 5 is fixedly connected between adjacent second telescopic rods 3; the pull rope 5 is a long strip structure; when the second telescopic rod 3 comes into contact with the heat dissipation base plate, the pull rope 5 will come into contact with the surface shape of the heat dissipation base plate and generate friction, thereby enhancing the fixing effect of the device on the heat dissipation base plate; by arranging the pull rope 5, when the second telescopic rod 3 comes into contact with the heat dissipation base plate, the pull rope 5 will come into contact with the heat dissipation base plate, thereby increasing the friction between the device and the heat dissipation base plate, so that the device can more firmly fix the heat dissipation base plate, and reduce the shaking of the heat dissipation base plate during grinding.

[0030] See also Figure 2 and Figure 3 As shown, a plurality of fan blades 6 are fixedly connected to the middle of the rotating shaft 105; the fan blades 6 are of an arc-shaped structure; after the motor 104 is started, the rotating shaft 105 will rotate, and the rotating shaft 105 will rotate with the fan blades 6 when rotating, and the fan blades 6 will continuously blow air to the heat dissipation base plate when rotating, thereby reducing the temperature of the surface of the heat dissipation base plate; by arranging the fan blades 6, the rotating shaft 105 will rotate with the fan blades 6 when rotating, and the fan blades 6 will blow air to cool the surface of the heat dissipation base plate when rotating, thereby reducing the heat generated when the surface of the heat dissipation base plate is polished, and reducing the possibility of deformation or damage of the heat dissipation base plate due to overheating.

[0031] See also Figure 4 As shown, a plurality of bristles 7 are fixedly connected to the middle part of the pull rope 5; when the pull rope 5 comes into contact with the heat dissipation base plate, the bristles 7 will also rub against the heat dissipation base plate, and the bristles 7 will clean the surface of the heat dissipation base plate during the friction, thereby reducing the dust on the surface of the heat dissipation base plate; by arranging the bristles 7, when the second support seat 103 approaches the heat dissipation base plate, the bristles 7 will come into contact and rub against the heat dissipation base plate, thereby reducing the dust and impurities on the surface of the heat dissipation base plate, enabling the device to clean the surface of the heat dissipation base plate, and improving the smoothness of the surface of the heat dissipation base plate.

[0032] Working principle: Place the heat dissipation base plate inside the fixed groove 113 and then start the device, then the electric push rod 102 will control the second support seat 103 to approach the heat dissipation base plate, and during the approaching process, the motor 104 will drive the rotating shaft 105 to rotate, and the rotating shaft 105 will rotate with the first gear 106. Because of the meshing relationship, the first gear 106 will drive the second gear 109 to rotate, and the second gear 109 will drive the second grinding wheel 112 to rotate together when rotating. Then, when the first grinding wheel 107 comes into contact with the heat dissipation base plate, the first grinding wheel 107 will continue to extend along the shape of the heat dissipation base plate, and the second grinding wheel 112 will grind the heat dissipation base plate after coming into contact with the heat dissipation base plate, and the second grinding wheel 112 will also The first spring 111 will be subjected to the pressure applied by the heat dissipation base plate and then transmit the pressure to the first spring 111. After being subjected to the force, the first spring 111 will be continuously compressed until the first grinding wheel 107 is completely in contact with the inside of the heat dissipation base plate, and finally the second grinding wheel 112 and the first grinding wheel 107 will grind the heat dissipation base plate at the same time; when the second support seat 103 approaches the heat dissipation base plate, due to the fixed relationship, the elastic cloth 2 and the counterweight ring 22 will be connected to the magnetic iron sheet 23 and approach the first support seat 1 together. When the counterweight ring 22 reaches the top of the first support seat 1, the counterweight ring 22 will be subjected to the pressure of the first support seat 1 and the pressure will be transmitted to the counterweight ring 22. At this time, the counterweight ring 22 will be in a bent state. When the first grinding wheel 107 and the second grinding wheel 112 exert pressure on the heat dissipation base plate The waste residue generated when the hot base plate is polished will splash onto the surface of the elastic cloth 2. Due to the suction force of the magnetic iron sheet 23, the waste residue will be adsorbed on the surface of the elastic cloth 2 by the magnetic iron sheet 23, so that the device can intercept and collect the waste residue during polishing; when the second support seat 103 approaches the heat dissipation base plate, the second telescopic rod 3 will also approach the heat dissipation base plate. When the second telescopic rod 3 contacts the heat dissipation base plate, it will slide relative to the second spring 32 under the pressure of the heat dissipation base plate, and then the second spring 32 will be in a stretched state and will release elastic potential energy. The second spring 32 applies pressure toward the heat dissipation base plate to the second telescopic rod 3, so as to fix the heat dissipation base plate; when the second telescopic rod 3 contacts the heat dissipation base plate, the suction cup 4 will also contact the heat dissipation base plate When the suction cup 4 contacts the heat dissipation base plate, the air in the suction cup 4 will be discharged through the exhaust hole 42, and then the suction cup 4 will be adsorbed and fixed to the heat dissipation base plate; when the second telescopic rod 3 contacts the heat dissipation base plate, the pull rope 5 will contact and rub against the surface shape of the heat dissipation base plate, thereby enhancing the fixing effect of the device on the heat dissipation base plate; after the motor 104 is started, the rotating shaft 105 will rotate, and the rotating shaft 105 will rotate with the fan blades 6 when rotating, and the fan blades 6 will continuously blow air to the heat dissipation base plate when rotating, thereby reducing the surface temperature of the heat dissipation base plate; when the pull rope 5 contacts the heat dissipation base plate, the bristles 7 will also rub against the heat dissipation base plate, and the bristles 7 will clean the surface of the heat dissipation base plate when rubbing, thereby reducing dust on the surface of the heat dissipation base plate.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A heat dissipation base plate polishing device, comprising a first support seat (1), characterized in that: A plurality of electric push rods (102) are fixedly connected to the top of the first support seat (1); the output ends of the adjacent electric push rods (102) are fixedly connected to the second support seat (103); a motor (104) is fixedly connected to the top of the second support seat (103); a rotating shaft (105) is fixedly connected to the output end of the motor (104); the rotating shaft (105) and the second support seat (103) are connected by a shaft seal; a first grinding wheel (107) is fixedly connected to the end of the rotating shaft (105); a first gear (106) is fixedly connected to the middle of the rotating shaft (105); and the bottom of the second support seat (103) is connected to the rotating shaft (107). A plurality of connecting rods (108) are connected; a second gear (109) is fixedly connected to the middle of the connecting rod (108); the second gear (109) is in meshing relationship with the first gear (106); a first telescopic rod (110) is fixedly connected to the end of the connecting rod (108); a second grinding wheel (112) is fixedly connected to the end of the first telescopic rod (110); a first spring (111) is fixedly connected to the end of the second gear (109); the first spring (111) and the second grinding wheel (112) are both in fixed relationship; a fixing groove (113) is provided on the top of the first support seat (1).

2. A heat dissipation bottom plate polishing device according to claim 1, characterized in that: The bottom of the second support seat (103) is fixedly connected to an elastic cloth (2); the bottom of the elastic cloth (2) is fixedly connected to a counterweight ring (22); the middle of the elastic cloth (2) is fixedly connected to a plurality of magnetic iron sheets (23); and the second grinding wheel (112) is located inside the elastic cloth (2).

3. A heat dissipation bottom plate polishing device according to claim 2, characterized in that: A plurality of second telescopic rods (3) are slidably connected to the middle of the second support seat (103); the second telescopic rod (3) is fixedly connected to a second spring (32) at the end away from the first grinding wheel (107); the second spring (32) and the second support seat (103) are both fixedly connected; and the second telescopic rod (3) is located inside the elastic cloth (2).

4. A heat dissipation bottom plate polishing device according to claim 3, characterized in that: A suction cup (4) is fixedly connected to the bottom of the second telescopic rod (3); an exhaust hole (42) is provided at the bottom of the suction cup (4).

5. A heat dissipation bottom plate grinding device according to claim 4, characterized in that: A pull rope (5) is fixedly connected between adjacent second telescopic rods (3); the pull rope (5) is a long strip structure.

6. A heat dissipation bottom plate polishing device according to claim 5, characterized in that: A plurality of fan blades (6) are fixedly connected to the middle of the rotating shaft (105); the fan blades (6) are of an arc-shaped structure.

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