Grinding and polishing device for processing copper busbar heat sink plate

Abstract

The utility model relates to a kind of grinding and polishing device for copper bar heat sink plate processing, the utility model effectively solves the problem that the existing copper bar heat sink plate processing mode is easy to cause uneven polishing and affect processing efficiency.The grinding and polishing device for copper bar heat sink plate processing can adjust the spacing of both sides clamping plate through adjusting mechanism, so as to facilitate clamping copper bar heat sink plate of different width, and electric lifting rod can adjust the height of top polishing mechanism, which is convenient for polishing and polishing copper bar heat sink plate of different thickness, top polishing mechanism and bottom polishing mechanism can polish and polish the front and back of copper bar heat sink plate simultaneously, and can polish uniformly on the whole surface, which can not only ensure the flatness of copper bar heat sink plate surface, but also improve the efficiency of grinding and polishing, bottom polishing mechanism and top polishing mechanism can grind and polish copper bar heat sink plate in turn, so that the effect of grinding and polishing is better, and it is more beneficial to use when processing copper bar heat sink plate.

Description

Technical Field

[0001] This utility model belongs to the technical field of copper busbar processing equipment, specifically relating to a grinding and polishing device for processing copper busbar heat sinks. Background Technology

[0002] In power transmission and transformation conductors, electrical copper busbars are high-current conductive products. They are suitable for electrical engineering projects such as high and low voltage electrical appliances, switch contacts, power distribution equipment, and busbar trunking. They are also widely used in ultra-high current electrolytic smelting projects such as power transmission and transformation, power control, power manufacturing, metal smelting, electrochemical plating, and chemical caustic soda production. In addition, electrical copper busbars are also a substitute for cables in high-rise building power supply and distribution. Copper busbars are prone to heat generation when carrying current; therefore, copper busbar heat sinks are often used to effectively dissipate heat.

[0003] Currently, in the processing of copper busbar heat sinks, the copper busbars need to be cut to the appropriate processing size first. Then, the surface and surrounding areas of the copper busbars need to be thoroughly ground and polished to facilitate subsequent deep processing. However, the initial processing of copper busbars mostly uses simple grinding machines, which are manually held and positioned for grinding and polishing. This method is somewhat dangerous, inconvenient for processing copper busbar heat sinks of different sizes, and cannot always ensure that all parts of the copper busbar heat sink have the same thickness, easily resulting in uneven grinding, which is not conducive to subsequent processing of the copper busbars. At the same time, it is not convenient to grind and polish the front and back of the copper busbar heat sink simultaneously, which affects processing efficiency and is not convenient for processing copper busbar heat sinks. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a grinding and polishing device for processing copper busbar heat sinks. This grinding and polishing device is convenient for clamping copper busbar heat sinks of different widths and for grinding and polishing copper busbar heat sinks of different thicknesses. It can not only ensure the flatness of the surface of the copper busbar heat sink, but also improve the efficiency of grinding and polishing. The bottom grinding mechanism and the top grinding mechanism can grind and polish the copper busbar heat sink in sequence, so that the grinding and polishing effect is better and more conducive to the use of copper busbar heat sink processing.

[0005] A grinding and polishing device for processing copper busbar heat sinks includes a placement base and a support frame. The lower surface of the placement base is rotatably connected to a bottom grinding mechanism for grinding and polishing the lower surface of the copper busbar heat sink. Clamping plates for clamping the copper busbar heat sink are provided on both sides inside the placement base, and an adjustment mechanism for driving the clamping plates is provided at the bottom of the placement base. The support frame is fixedly connected to the top of the placement base, and a lifting frame is vertically slidably connected inside the support frame. The lifting frame is equipped with a top grinding mechanism for grinding and polishing the upper surface of the copper busbar heat sink, and a transmission mechanism is provided on one side of the top grinding mechanism. The bottom grinding mechanism is connected to the top grinding mechanism via the transmission mechanism. The top of the lifting frame is equipped with an electric lifting rod that can move up and down, and the electric lifting rod is fixedly installed on the upper surface of the support frame.

[0006] Preferably, the bottom grinding mechanism includes a first grinding roller and a first polishing roller. There are two first grinding rollers, and the two first grinding rollers are respectively horizontally rotatably connected to the middle and one side of the lower surface of the placement seat. The first polishing roller is horizontally rotatably connected to the other side of the lower surface of the placement seat and is horizontally parallel to the two first grinding rollers. A bevel gear is fixedly connected to the same side of the first grinding roller and the first polishing roller. A through groove is opened on the upper surface of the placement seat at the part corresponding to the two first grinding rollers and the first polishing roller, and the first grinding roller and the first polishing roller are respectively rotatably connected in the corresponding through groove.

[0007] Preferably, the adjusting mechanism includes a connecting frame, a rack, a spur gear, and a first drive motor. The two clamping plates are fixedly connected to the sides away from each other by the connecting frame. The two sides of the lower surface of the two connecting frames are fixedly connected to the racks, and the spur gear meshes between the racks at the bottom of the two connecting frames. The spur gear is connected to the output end of the first drive motor via a spline.

[0008] Preferably, there are three support frames, and the three support frames are respectively fixedly connected to the top of the placement seat and the two first grinding rollers and polishing rollers vertically corresponding to each other. There are two electric lifting rods, and the fixed rod parts of the two electric lifting rods are vertically fixedly installed on both sides of the upper surface of the middle support frame. The movable rods of the two electric lifting rods are both inserted through the bottom of the support frame and fixedly connected to the middle of the upper surface of the lifting frame.

[0009] Preferably, the top grinding mechanism includes a second grinding roller, a second polishing roller, a driving pulley, a driven pulley, and a second drive motor. There are two second grinding rollers, each horizontally rotatably connected inside the lifting frame to a position corresponding vertically to the two first grinding rollers. The second polishing roller is also horizontally rotatably connected inside the lifting frame to a position corresponding vertically to the first polishing roller. Both second grinding rollers and the second polishing roller have bevel gears fixedly connected to the same side, and these bevel gears are on the same side as those on the first grinding roller and the first polishing roller. A driving pulley is fixedly connected to the end of one of the second grinding rollers rotatably connected to the middle of the lifting frame, away from the bevel gear. A driven pulley is fixedly connected to the end of the other second grinding roller and the second polishing roller, away from the bevel gear. The driving pulley is connected to the two driven pulleys via a belt. The second drive motor is fixedly installed in the middle of the lifting frame near the driving pulley, and its output end is connected to the driving pulley via a spline.

[0010] Preferably, the transmission mechanism includes a first bevel gear, an inner rod, an outer rod, and a second bevel gear. The first bevel gear is rotatably connected to the side of the lifting frame near the bevel gear and meshes with the corresponding bevel gear in the top grinding mechanism. The inner rod is fixedly connected to the center of the lower surface of the first bevel gear and inserted into the interior of the outer rod. The outer rod is fixedly connected to the center of the upper surface of the second bevel gear, and the second bevel gear is rotatably connected to the side of the placement seat and meshes with the corresponding bevel gear in the bottom grinding mechanism. The transmission mechanism consists of three sets, which are respectively connected between the two second grinding rollers and the two first grinding rollers, and between the second polishing roller and the first polishing roller.

[0011] Preferably, the ends of the two clamping plates away from the first polishing roller have an outwardly flared opening structure, and the two clamping plates and the two second grinding rollers and the second polishing roller are provided with grooves at the vertically corresponding parts to prevent the second grinding rollers and the second polishing rollers from descending.

[0012] Preferably, a distance sensor is fixedly installed on one of the support frames on the side away from the second polishing roller. The number of distance sensors is two, and both distance sensors are fixedly installed on the side of the support frame away from the second polishing roller and are symmetrically arranged with the vertical center line of the support frame as the axis of symmetry.

[0013] The beneficial effects of the above technical solution are as follows:

[0014] This grinding and polishing device for processing copper busbar heat sinks comprises a bottom grinding mechanism, clamping plates, an adjustment mechanism, and a top grinding mechanism. The adjustment mechanism can adjust the distance between the clamping plates on both sides, thus facilitating the clamping of copper busbar heat sinks of different widths. The electric lifting rod can adjust the height of the top grinding mechanism, making it convenient to grind and polish copper busbar heat sinks of different thicknesses. The top and bottom grinding mechanisms can simultaneously grind and polish the front and back sides of the copper busbar heat sink, and can evenly grind the entire surface, ensuring the flatness of the copper busbar heat sink surface and improving the grinding and polishing efficiency. The bottom and top grinding mechanisms can grind and polish the copper busbar heat sink sequentially, resulting in better grinding and polishing effects and making it more suitable for use in processing copper busbar heat sinks. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the top grinding mechanism and the bottom grinding mechanism of this utility model;

[0017] Figure 3 This utility model Figure 2 A diagram illustrating the split state;

[0018] Figure 4 This is a schematic diagram of the adjustment mechanism of this utility model;

[0019] Figure 5 This utility model Figure 4 A diagram illustrating the split state;

[0020] Figure 6 This is a schematic diagram of the placement base and support frame of this utility model.

[0021] In the diagram: 1. Placement seat; 2. Support frame; 3. Clamping plate; 4. Lifting frame; 5. Electric lifting rod; 6. First grinding roller; 7. First polishing roller; 8. Through groove; 9. Connecting frame; 10. Rack; 11. Spur gear rod; 12. First drive motor; 13. Second grinding roller; 14. Second polishing roller; 15. Drive pulley; 16. Driven pulley; 17. Second drive motor; 18. First bevel gear; 19. Inner rod; 20. Outer rod; 21. Second bevel gear; 22. Distance sensor. Detailed Implementation

[0022] The foregoing and other technical contents, features and effects of this utility model are described in conjunction with the appendix below. Figures 1 to 6 The embodiments are described in detail below.

[0023] This embodiment provides a grinding and polishing device for processing copper busbar heat sinks, as shown in the attached figure. Figure 1-6As shown, the device includes a placement base 1 and a support frame 2. Support legs are fixedly connected to the four corners of the lower surface of the placement base 1. A bottom polishing mechanism for polishing the lower surface of the copper busbar heat sink is rotatably connected to the lower surface of the placement base 1. The bottom polishing mechanism includes two first polishing rollers 6 and two first polishing rollers 7. The two first polishing rollers 6 are horizontally rotatably connected to the middle and one side of the lower surface of the placement base 1, respectively. The first polishing rollers 7 are horizontally rotatably connected to the other side of the lower surface of the placement base 1 and are horizontally parallel to the two first polishing rollers 6. The grinding rollers 6 and polishing rollers 7 are spaced at the same distance. Bevel gears are fixedly connected to the same side of the first grinding rollers 6 and the first polishing rollers 7. Through grooves 8 are opened on the upper surface of the placement seat 1 at the corresponding parts of the two first grinding rollers 6 and the first polishing rollers 7, and the first grinding rollers 6 and the first polishing rollers 7 are rotatably connected in the corresponding through grooves 8. The tops of the two first grinding rollers 6 and the polishing rollers 7 protrude slightly from the top of the through grooves 8, and can contact the lower surface of the copper busbar heat sink placed in the placement seat 1, thereby grinding and polishing the lower surface of the copper busbar heat sink.

[0024] Both sides of the placement base 1 are provided with clamping plates 3 for clamping the copper busbar heat sink, and the bottom of the placement base 1 is provided with an adjustment mechanism for driving the clamping plates 3 to move. The ends of the two clamping plates 3 away from the first polishing roller 7 are mutually flared openings, which facilitates the guidance of the copper busbar heat sink and ensures that the copper busbar heat sink can smoothly enter the placement base 1. The two clamping plates 3 and the two second grinding rollers 13 and the second polishing roller 14 are provided with grooves at the vertically corresponding parts to prevent the second grinding rollers 13 and the second polishing rollers 14 from being affected when they descend. This ensures that the two second grinding rollers 13 and the second polishing roller 14 will not be affected by the clamping plates 3 when they descend to the lowest point.

[0025] The adjusting mechanism includes a connecting frame 9, a rack 10, a spur gear 11, and a first drive motor 12. Connecting frames 9 are fixedly connected to the sides of the two clamping plates 3 that are far apart from each other. Racks 10 are fixedly connected to both sides of the lower surface of the two connecting frames 9, and the spur gear 11 meshes between the racks 10 at the bottom of the two connecting frames 9. The racks 10 on the lower surfaces of the two connecting frames 9 are at different heights, allowing the spur gear 11 to drive through the parts of the racks 10 on both sides that are close to each other. The racks 10 on the lower surfaces of the two connecting frames 9 mesh with the top and bottom of the spur gear 11, respectively. Two fixing frames are fixedly connected to the middle of the lower surface of the placement seat 1, and the two fixing frames are respectively sleeved on both ends of the spur gear 11. The lower surfaces of the two connecting frames 9 are... Two corresponding racks 10 are respectively installed on both sides of the corresponding fixed frame. The fixed frame can limit and support the spur gear rod 11, and at the same time restrict the movement path of the rack 10, ensuring that the rack 10 can only move horizontally. The spur gear rod 11 is connected to the output end of the first drive motor 12 through a spline. The first drive motor 12 is fixedly installed on the side of one of the fixed frames. When the first drive motor 12 drives the spur gear rod 11 to rotate, it can synchronously drive the racks 10 on both sides to move closer or further away from each other, thereby driving the clamping plates 3 on both sides to move relative to each other. Adjusting the distance between the two clamping plates 3 can facilitate the limiting of copper busbar heat sinks of different widths, ensuring that the copper busbar heat sink can move smoothly within the placement seat 1.

[0026] The support frame 2 is fixedly connected to the top of the placement seat 1. There are three support frames 2, and the three support frames 2 are fixedly connected to the top of the placement seat 1 at the vertically corresponding positions of the two first grinding rollers 6 and polishing rollers 7. The three support frames 2 have through slots on both sides, and the two sides of the top grinding mechanism are inserted into the corresponding through slots and can move up and down in the through slots.

[0027] A lifting frame 4 is vertically slidably connected inside the support frame 2. The lifting frame 4 has a top polishing mechanism inside for polishing the upper surface of the copper busbar heat sink. The top polishing mechanism includes a second polishing roller 13, a second polishing roller 14, a drive pulley 15, a driven pulley 16, and a second drive motor 17. There are two second polishing rollers 13, which are horizontally rotatably connected inside the lifting frame 4 at positions corresponding vertically to the two first polishing rollers 6. The second polishing rollers 14 are horizontally rotatably connected inside the lifting frame 4 at positions corresponding vertically to the first polishing rollers 7. Both second polishing rollers 13 and 14 have bevel gears fixedly connected to the same side, and these bevel gears are on the same side as those on the first polishing rollers 6 and 7. The end of the second polishing roller 13 rotatably connected to the middle of the lifting frame 4 away from the bevel gear is fixedly connected to a drive pulley 15, and the other end is connected to a second drive pulley 16. A driven pulley 16 is fixedly connected to the end of the grinding roller 13 and the second polishing roller 14 away from the bevel gear. The driving pulley 15 is connected to the two driven pulleys 16 via a belt. The second drive motor 17 is fixedly installed in the middle of the lifting frame 4 near the driving pulley 15, and its output end is connected to the driving pulley 15 via a spline. When the second drive motor 17 drives the driving pulley 15 to rotate, it can drive the driven pulleys 16 on both sides to rotate synchronously via the belt, so that the two second grinding rollers 13 and the second polishing rollers 14 rotate synchronously. This can grind the upper surface of the copper busbar heat sink below. At the same time, the copper busbar heat sink can be pushed to move at a uniform speed by an external mechanism, so that the upper and lower surfaces of the copper busbar heat sink can be fully ground by the first grinding roller 6 and the second grinding roller 13 in sequence, and polished by the first polishing roller 7 and the second polishing roller 14, making the surface of the copper busbar heat sink more finely ground and polished.

[0028] A transmission mechanism is provided on one side of the top grinding mechanism. The bottom grinding mechanism is connected to the top grinding mechanism through the transmission mechanism. The transmission mechanism includes a first bevel gear 18, an inner rod 19, an outer rod 20, and a second bevel gear 21. The first bevel gear 18 is rotatably connected to the side of the lifting frame 4 near the bevel gear and meshes with the corresponding bevel gear in the top grinding mechanism. The inner rod 19 is fixedly connected to the center of the lower surface of the first bevel gear 18 and inserted into the interior of the outer rod 20. The inner rod 19 has protruding limiting strips on both sides and is inserted into the interior of the outer rod 20. This ensures that the inner rod 19 can drive the outer rod 20 to rotate synchronously when rotating, without affecting the inner rod 19's rise and fall with the lifting frame 4. This facilitates the adjustment of the distance between the bottom grinding mechanism and the top grinding mechanism and maintains the transmission effect between them. The outer rod 20 is fixedly connected to the center of the upper surface of the second bevel gear 21, and the second bevel gear 21 is rotatably connected to the placement seat. The side of the 1 meshes with the corresponding bevel gear in the bottom grinding mechanism. There are three sets of transmission mechanisms, which are respectively connected between the two second grinding rollers 13 and the two first grinding rollers 6, and between the second polishing roller 14 and the first polishing roller 7. When the two second grinding rollers 13 and the second polishing roller 14 rotate, they can drive the first bevel gear 18 in the three transmission mechanisms to rotate synchronously through the bevel gear at their ends. The first bevel gear 18 can drive the second bevel gear 21 below to rotate synchronously through the inner rod 19 and the outer rod 20. The three second bevel gears 21 can drive the two first grinding rollers 6 and the first polishing roller 7 to rotate synchronously through the bevel gears meshing with them. Thus, the first grinding roller 6, the first polishing roller 7, the second grinding roller 13 and the second polishing roller 14 can rotate synchronously, and at the same time, the upper and lower surfaces of the copper busbar heat sink are ground and polished, which greatly improves the processing efficiency.

[0029] The top of the lifting frame 4 is equipped with an electric lifting rod 5 that can move up and down. The electric lifting rod 5 is fixedly installed on the upper surface of the support frame 2. There are two electric lifting rods 5, and the fixed rod parts of the two electric lifting rods 5 are vertically fixed on both sides of the upper surface of the middle support frame 2. The movable rods of the two electric lifting rods 5 are both inserted through the bottom of the support frame 2 and fixedly connected to the middle of the upper surface of the lifting frame 4. The electric lifting rod 5 can drive the lifting frame 4 and the top grinding mechanism to move up and down, so as to facilitate the adjustment of the height of the top grinding mechanism according to the thickness of the copper busbar heat sink, and to facilitate the adaptation to copper busbar heat sinks of different thicknesses.

[0030] One of the support frames 2, located away from the second polishing roller 14, is fixedly equipped with a distance sensor 22. There are two distance sensors 22, and both distance sensors 22 are fixedly installed on the side of the support frame 2 away from the second polishing roller 14 and are symmetrically arranged with the vertical center line of the support frame 2 as the axis of symmetry. The detection direction of both distance sensors 22 is vertically downward. When the operator puts the copper busbar heat sink into the placement seat 1 from the outwardly flared opening end of the clamping plate 3, the distance sensor 22 can detect the distance between it and the upper surface of the copper busbar heat sink. Thus, the movable end of the electric lifting rod 5 can be controlled by the external control unit to move the bottom of the top grinding mechanism to a height that can fit with the upper surface of the copper busbar heat sink, thereby enabling grinding and polishing of copper busbar heat sinks of different thicknesses.

[0031] The electric lifting pole 5, the first drive motor 12, the second drive motor 17, and the distance sensor 22 are all electrically connected to the external control unit and are all electrically connected to the external circuit through wires.

[0032] In summary, the grinding and polishing device used for processing the copper busbar heat sink has the following operating steps:

[0033] 1. Place the copper busbar heat sink plate into the placement seat 1 from the outwardly flared opening end of the clamping plate 3. The distance between the plate and the upper surface of the copper busbar heat sink plate is detected by the distance sensor 22. The movable end of the electric lifting rod 5 can be controlled by the external control unit to move the bottom of the top grinding mechanism to a height that can fit against the upper surface of the copper busbar heat sink plate.

[0034] 2. Then, the second drive motor 17 drives the active pulley 15 to rotate, which drives the driven pulleys 16 on both sides to rotate synchronously through the belt, causing the two second grinding rollers 13 and the second polishing rollers 14 to rotate synchronously. Through the bevel gears at their ends, the first bevel gears 18 in the three transmission mechanisms rotate synchronously. The second bevel gears 18 drive the lower second bevel gears 21 to rotate synchronously through the inner rod 19 and the outer rod 20. The three second bevel gears 21 drive the two first grinding rollers 6 and the first polishing rollers 7 to rotate synchronously through the bevel gears meshing with them. At the same time, the copper busbar heat sink can be pushed to move at a uniform speed through the external mechanism, so that the upper and lower surfaces of the copper busbar heat sink can be fully ground and polished.

[0035] 3. As the copper busbar heat sink moves, it can be fully and evenly polished by the first polishing roller 6 and the second polishing roller 13. The polished part will be polished by the first polishing roller 7 and the second polishing roller 14 as it moves, thereby performing more refined processing on the copper busbar heat sink.

[0036] The above description is only for illustrating the present utility model. It should be understood that the present utility model is not limited to the above embodiments, and various modifications that conform to the concept of the present utility model are within the protection scope of the present utility model.

Claims

1. A grinding and polishing device for processing copper busbar heat sinks, comprising a placement base (1) and a support frame (2), characterized in that: The lower surface of the placement seat (1) is rotatably connected to a bottom polishing mechanism for polishing the lower surface of the copper busbar heat sink. Both sides of the placement seat (1) are provided with clamping plates (3) for clamping the copper busbar heat sink. The bottom of the placement seat (1) is provided with an adjustment mechanism for driving the clamping plates (3) to move. The support frame (2) is fixedly connected to the top of the placement seat (1). The support frame (2) is vertically slidably connected with a lifting frame (4). The lifting frame (4) is provided with a top polishing mechanism for polishing the upper surface of the copper busbar heat sink. One side of the top polishing mechanism is provided with a transmission mechanism. The bottom polishing mechanism is connected to the top polishing mechanism through the transmission mechanism. The top of the lifting frame (4) is provided with an electric lifting rod (5) that can move up and down. The electric lifting rod (5) is fixedly installed on the upper surface of the support frame (2).

2. The grinding and polishing device for processing copper busbar heat sinks according to claim 1, characterized in that: The bottom grinding mechanism includes a first grinding roller (6) and a first polishing roller (7). There are two first grinding rollers (6), and the two first grinding rollers (6) are horizontally rotatably connected to the middle and one side of the lower surface of the placement seat (1), respectively. The first polishing roller (7) is horizontally rotatably connected to the other side of the lower surface of the placement seat (1) and is horizontally parallel to the two first grinding rollers (6). The same side of the first grinding roller (6) and the first polishing roller (7) are fixedly connected with bevel gears. The upper surface of the placement seat (1) is provided with through grooves (8) at the corresponding parts of the two first grinding rollers (6) and the first polishing roller (7), and the first grinding rollers (6) and the first polishing roller (7) are rotatably connected in the corresponding through grooves (8).

3. The grinding and polishing device for processing copper busbar heat sinks according to claim 1, characterized in that: The adjustment mechanism includes a connecting frame (9), a rack (10), a spur gear (11), and a first drive motor (12). The two clamping plates (3) are fixedly connected to the side away from each other by the connecting frame (9). The rack (10) is fixedly connected to both sides of the lower surface of the two connecting frames (9), and the spur gear (11) meshes between the racks (10) at the bottom of the two connecting frames (9). The spur gear (11) is connected to the output end of the first drive motor (12) by a spline.

4. The grinding and polishing device for processing copper busbar heat sinks according to claim 2, characterized in that: The number of support frames (2) is three, and the three support frames (2) are respectively fixedly connected to the top of the placement seat (1) and the two first grinding rollers (6) and polishing rollers (7) vertically corresponding to each other. The number of electric lifting rods (5) is two, and the fixed rod parts of the two electric lifting rods (5) are vertically fixedly installed on both sides of the upper surface of the middle support frame (2). The movable rods of the two electric lifting rods (5) are both inserted under the support frame (2) and fixedly connected to the middle of the upper surface of the lifting frame (4).

5. The grinding and polishing device for processing copper busbar heat sinks according to claim 2, characterized in that: The top grinding mechanism includes a second grinding roller (13), a second polishing roller (14), a drive pulley (15), a driven pulley (16), and a second drive motor (17). There are two second grinding rollers (13), which are horizontally rotatably connected inside the lifting frame (4) to positions corresponding vertically to the two first grinding rollers (6). The second polishing roller (14) is horizontally rotatably connected inside the lifting frame (4) to positions corresponding vertically to the first polishing roller (7). Both second grinding rollers (13) and the second polishing roller (14) have bevel gears fixedly connected to the same side, and these gears are connected to the first grinding roller (6). The bevel gears on the first polishing roller (7) and the first grinding roller (6) are on the same side. The second grinding roller (13) rotatably connected to the middle of the lifting frame (4) has a drive pulley (15) fixedly connected to the end away from the bevel gear. The other second grinding roller (13) and the second polishing roller (14) have a driven pulley (16) fixedly connected to the end away from the bevel gear. The drive pulley (15) is connected to the two driven pulleys (16) by a belt. The second drive motor (17) is fixedly installed in the middle of the lifting frame (4) near the drive pulley (15) and its output end is connected to the drive pulley (15) by a spline.

6. The grinding and polishing device for processing copper busbar heat sinks according to claim 1, characterized in that: The transmission mechanism includes a first bevel gear (18), an inner rod (19), an outer rod (20), and a second bevel gear (21). The first bevel gear (18) is rotatably connected to the side of the lifting frame (4) near the bevel gear and meshes with the corresponding bevel gear in the top grinding mechanism. The inner rod (19) is fixedly connected to the center of the lower surface of the first bevel gear (18) and inserted into the interior of the outer rod (20). The outer rod (20) is fixedly connected to the center of the upper surface of the second bevel gear (21), and the second bevel gear (21) is rotatably connected to the side of the placement seat (1) and meshes with the corresponding bevel gear in the bottom grinding mechanism. The transmission mechanism consists of three sets, which are respectively connected between two second grinding rollers (13) and two first grinding rollers (6) and between a second polishing roller (14) and a first polishing roller (7).

7. The grinding and polishing device for processing copper busbar heat sinks according to claim 5, characterized in that: The ends of the two clamping plates (3) away from the first polishing roller (7) are mutually open structures, and the two clamping plates (3) and the two second grinding rollers (13) and the second polishing roller (14) are provided with grooves to prevent the second grinding roller (13) and the second polishing roller (14) from falling down.

8. The grinding and polishing device for processing copper busbar heat sinks according to claim 5, characterized in that: A distance sensor (22) is fixedly installed on one of the support frames (2) on the side away from the second polishing roller (14). There are two distance sensors (22), and both distance sensors (22) are fixedly installed on the side of the support frame (2) away from the second polishing roller (14) and are symmetrically arranged with the vertical center line of the support frame (2) as the axis of symmetry.

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