A kind of isolating switch conducting contact precision milling and surface strengthening treatment device

Abstract

This invention discloses a precision milling and surface strengthening device for conductive contacts of disconnecting switches, relating to the field of conductive contact processing technology for disconnecting switches. It includes a disc with a circular groove at the center of its top, a rotating disk within the groove, and a through hole at the center of the bottom of the disc. A motor is located at the center of the bottom of the disc, and a transmission rod is fixedly connected to the motor's power output shaft. Through the cooperation of the rotating disk, transparent plate, milling equipment, and pressing strengthening equipment, two blanks can be placed on top of the rotating disk. A nut drives an adjusting block to rotate, and the nut rotates and moves on the surface of the threaded rod. The nut drives a connecting clamping plate to move, which in turn drives an L-shaped clamping plate to move, bringing the front and rear connecting clamping plates closer together and clamping the blanks. When clamping blanks of different thicknesses, the L-shaped clamping plate presses and clamps the top of the blanks with the help of springs.

Description

Technical Field

[0001] This invention relates to the field of conductive contact processing technology for disconnecting switches, specifically to a device for precision milling and surface strengthening treatment of conductive contacts for disconnecting switches. Background Technology

[0002] However, existing disconnect switch conductive contacts have some problems in processing. The existing disconnect switch conductive contacts require precision milling and surface hardening operations during processing. In the current technology, these two processing steps are often carried out separately. This not only increases the risk of the processed parts during the transfer between the two machines, but also requires secondary clamping of the processed parts, which increases the workload of the operators. It is also inconvenient to dry the processed parts, and the cutting fluid during the milling process is not easy to drain, which reduces the working efficiency of the device. Summary of the Invention

[0003] In view of the above-mentioned shortcomings of the existing technology, the purpose of the present invention is to provide a device for precision milling and surface strengthening treatment of conductive contacts of disconnecting switches.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a precision milling and surface strengthening treatment device for conductive contacts of a disconnecting switch, comprising a disc, a circular groove at the center of the top of the disc, a rotating disk within the groove, a through hole at the center of the bottom of the disc, a motor at the center of the bottom of the disc, a transmission rod fixedly connected to the power output shaft of the motor, the top end of the transmission rod penetrating the through hole and fixedly connected to the bottom of the rotating disk, a fixed cylinder fixedly connected to the outer edge of the transmission rod near the bottom, the fixed cylinder being located at the bottom of the disc and fitted onto the outer edge of the motor, a transparent plate fixedly connected to the center of the top of the rotating disk, a plurality of first filter holes on the rotating disk, a plurality of second filter holes at the bottom of the disc, horizontal plates on both the left and right sides of the disc, blind grooves on the side of each horizontal plate near the disc, movable grooves at the top and bottom of each blind groove, a fixed plate within each blind groove, one side of each fixed plate fixedly connected to the outer edge of the disc, movable blocks fixedly connected to the top and bottom of each fixed plate, the movable blocks being movably connected to adjacent movable grooves.

[0005] Preferably, each of the horizontal plates has a groove on the side away from the disc, and a cylinder is fixedly connected to each groove. An L-shaped plate is fixedly connected to the end of each cylinder away from the disc. A diagonal rod is fixedly connected to the top of each L-shaped plate. A sliding groove is provided on the top of the horizontal plate near the front and rear sides. An extrusion strengthening device is provided on the top of the horizontal plate on the left side. The left side of the L-shaped plate is fixedly connected to the left side of the extrusion strengthening device. The end of the diagonal rod on the left side away from the left L-shaped plate is fixedly connected to the left side of the extrusion strengthening device. Two second sliders are fixedly connected to the bottom of the extrusion strengthening device. The second sliders are movably connected in adjacent sliding grooves.

[0006] Preferably, a milling device is provided at the top of the right-side horizontal plate, one side of the right-side L-shaped plate is fixedly connected to the right side of the milling device, and the end of the right-side inclined rod away from the right-side L-shaped plate is fixedly connected to the right side of the milling device. Two first sliders are fixedly connected to the bottom of the milling device, and the first sliders are movably connected in adjacent grooves.

[0007] Preferably, the disc has swing plates on both the front and rear sides. Each swing plate has two first hinges on the bottom side near the disc. The swing plates are movably connected to the outer edge of the disc via the first hinges. Each swing plate has a connecting plate attached to its bottom. Each connecting plate has a fixed rod fixedly connected to its bottom. Each fixed rod has a base plate fixedly connected to its bottom end. Each fixed rod has a support rod fixedly connected to its outer edge. Each support rod has an L-shaped support plate fixedly connected to its end away from the fixed rod. The L-shaped support plate is attached to the outer edge of the disc.

[0008] Preferably, each of the swing plates has two T-slots at its top, and a T-plate is movably connected to each T-slot. An adjustment plate is fixedly connected to the top of two adjacent T-plates. A vertical rod is fixedly connected to the top of each adjustment plate near its four corners. A blower is fixedly connected to the top of each of the four adjacent vertical rods. A limiting plate is provided on the side of the swing plate away from the disc. A second hinge is provided at the bottom of each limiting plate. The limiting plate is movably connected to the bottom of the swing plate through the second hinge. A connecting hole is provided on the side of the limiting plate away from the swing plate.

[0009] Preferably, two movable slots are provided on the front and rear sides of the top of the rotating disk near the left and right sides. Connecting clamps are provided on the front and rear sides of the top of the rotating disk near the left and right sides. Two movable blocks are fixedly connected to the bottom of each connecting clamp. The movable blocks are movably connected in adjacent movable slots. Each movable block has a horizontal hole. A threaded rod passes through each horizontal hole. The front and rear ends of the threaded rod are fixedly connected to the side wall of the movable slot. An annular groove is provided on one side of each movable block. Nuts are threadedly connected to the outer edge of each threaded rod. Four adjusting blocks are fixedly connected to the side of each nut near the movable block. The adjusting blocks are movably connected in adjacent annular grooves.

[0010] Preferably, the inner cavity of the connecting clamp is provided with cavities near the left and right sides, and the top of the connecting clamp is provided with vertical holes near the left and right sides. The vertical holes and cavities are interconnected. The diameter of the vertical holes is smaller than the diameter of the cavities. Each cavity is provided with a fixing plate. An adjusting rod is fixedly connected to the top of each fixing plate. Each connecting clamp is provided with an L-shaped clamp at the top. The top of the adjusting rod is fixedly connected to the bottom of the L-shaped clamp. A spring is sleeved on the outer edge of each adjusting rod. The spring is located inside the cavity.

[0011] Preferably, baffles are fixedly connected to the top of the horizontal plate near the front and rear sides. First threaded holes are opened on the front and rear sides of the horizontal plate. Four movable plates are attached to the outer edge of the disc. A third hinge is provided on one side of each movable plate. The movable plate is movably connected to the outer edge of the disc through the third hinge. A second threaded hole is opened on each movable plate. A bolt is threaded into each of the second threaded holes. The bolt is threaded into the adjacent first threaded hole.

[0012] Preferably, the bottom of the horizontal plate is fixedly connected to support columns near the four corners, and two limiting holes are opened at the center of the top of the transparent plate, with an N-shaped rod provided in both limiting holes.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes the interplay of a rotating disk, a transparent plate, a milling machine, and a pressing and strengthening device to place two blanks on top of the rotating disk. A nut drives an adjusting block to rotate, and the nut rotates and moves on the surface of a threaded rod. The nut then moves a connecting clamping plate, which in turn moves an L-shaped clamping plate, bringing the front and rear connecting clamping plates closer together and clamping the blanks. When clamping blanks of different thicknesses, the L-shaped clamping plate, with the aid of springs, presses and clamps the top of the blank. A horizontal plate moves a support column, moving the horizontal plate closer to and fitting against the disk. A fixing plate then enters the horizontal plate, where the blanks are first milled. The milling machine is aligned with the blank and mills it. A baffle prevents debris and cutting fluid from splashing. The cutting fluid is discharged through the rotating disk and the first and second filter holes on the disk. A collection frame can be placed at the bottom of the disk to collect the cutting fluid. After the blank on the right side is milled, the motor drives the rotating disk to rotate, which in turn drives the transparent plate to rotate, and the rotating disk drives the blank to rotate. After the rotating disk rotates 90 degrees, the motor is turned off. At this time, the milled blank will be located on the front side. Adjust the front swing plate, and the blower blows air on the surface of the milled blank to remove copper shavings and oil. Then the motor continues to drive, and the rotating disk rotates. The milled blank is located below the extrusion strengthening equipment, and the blank to be processed is located below the milling equipment. The milling equipment then performs milling on the blank to be processed, while the extrusion strengthening equipment performs extrusion strengthening on the milled blank. The left cylinder moves the extrusion strengthening equipment through the left L-shaped plate and the left inclined rod. After the extrusion strengthening of the blank is completed, turn the nut to remove the connecting clamp and the L-shaped clamp from the blank, and then it can be disassembled. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention; Figure 2 This is a bottom-view perspective view of the present invention; Figure 3 This is a diagram showing the working state of the hair dryer of the present invention; Figure 4 This is a schematic diagram of the component milling equipment of the present invention; Figure 5 This is a schematic diagram of the right side of the milling equipment for the components of this invention; Figure 6 This is a schematic diagram of the first slider structure of the component of the present invention; Figure 7 This is a schematic diagram of the extrusion strengthening device for the components of the present invention; Figure 8 This is a schematic diagram of the second slider structure of the component of the present invention; Figure 9 This is a schematic diagram of the transparent plate structure of the component of the present invention; Figure 10 This is a bottom view of the disc structure of the component of the present invention; Figure 11 This is a schematic diagram of the disk structure of the component of the present invention; Figure 12 This is a schematic diagram of the swing plate structure of the component of the present invention; Figure 13 This is a schematic diagram of the limiting plate structure of the component of the present invention; Figure 14 This is a schematic diagram of the T-shaped plate structure of the component of the present invention; Figure 15 This is a top view of the rotating disk component of the present invention; Figure 16 This is a schematic diagram of the motor structure of the component of the present invention; Figure 17 This is an exploded view of the motor component of the present invention; Figure 18 This is an exploded view of the connecting clamp of the component of the present invention; Figure 19 This is an exploded view of the connecting clamp of the component of the present invention from a bottom angle; Figure 20 This is a partial cross-sectional view of the connecting clamp of the component of the present invention; Figure 21 This is a schematic diagram of the nut structure of the component of the present invention; Figure 22 for Figure 19 Enlarged view of point A in the middle.

[0015] Numbered components in the diagram: 1. Disc; 2. Horizontal plate; 3. Support column; 4. Baffle; 5. Transparent plate; 6. Blower; 7. Base; 8. Fixing rod; 9. Motor; 10. Transmission rod; 11. Fixing cylinder; 12. Connecting plate; 13. Support rod; 14. Milling equipment; 15. Diagonal bar; 16. L-shaped plate; 17. First slider; 18. Cylinder; 19. Extrusion strengthening equipment; 20. Second slider; 21. Fixing plate 22. Movable block; 23. N-shaped rod; 24. Swing plate; 25. Movable plate; 26. Bolt; 27. L-shaped support plate; 28. Limiting plate; 29. ​​Vertical rod; 30. Adjusting plate; 31. T-shaped plate; 32. Connecting clamp; 33. L-shaped clamp; 34. Moving block; 35. Nut; 36. Threaded rod; 37. Adjusting block; 38. Adjusting rod; 39. Spring; 40. Fixed plate; 41. Rotating plate. Detailed Implementation

[0016] Please see Figure 1-22This invention provides a technical solution: a precision milling and surface strengthening device for conductive contacts of a disconnecting switch, comprising a disc 1, a circular groove at the center of the top of the disc 1, a rotating disk 41 disposed within the groove, a through hole at the center of the bottom of the disc 1, a motor 9 disposed at the center of the bottom of the disc 1, a transmission rod 10 fixedly connected to the power output shaft of the motor 9, the top end of the transmission rod 10 penetrating the through hole and fixedly connected to the bottom of the rotating disk 41, a fixing cylinder 11 fixedly connected to the outer edge of the transmission rod 10 near the bottom, the fixing cylinder 11 being located at the bottom of the disc 1 and sleeved on the outer edge of the motor 9, a transparent plate 5 fixedly connected to the center of the top of the rotating disk 41, a plurality of first filter holes being formed on the rotating disk 41, and a plurality of second filter holes being formed at the bottom of the disc 1. Both sides of the disc 1 are provided with horizontal plates 2. A blind groove is formed on the side of each horizontal plate 2 closest to the disc 1. Movable grooves are formed at the top and bottom of each blind groove. A fixed plate 21 is provided within each blind groove. One side of the fixed plate 21 is fixedly connected to the outer edge of the disc 1. Movable blocks 22 are fixedly connected to the top and bottom of the fixed plate 21, and are movably connected to adjacent movable grooves. A groove is formed on the side of each horizontal plate 2 away from the disc 1. A cylinder 18 is fixedly connected within each groove. An L-shaped plate 16 is fixedly connected to the end of each cylinder 18 away from the disc 1. A diagonal rod 15 is fixedly connected to the top of each L-shaped plate 16. Sliding grooves are formed on the top of each horizontal plate 2 near the front and rear sides. An extrusion strengthening device 19 is provided on the top of the left horizontal plate 2. A fixed connection is made to one side of the left L-shaped plate 16. On the left side of the extrusion strengthening device 19, the end of the left diagonal bar 15 away from the left L-shaped plate 16 is fixedly connected to the left side of the extrusion strengthening device 19. Two second sliders 20 are fixedly connected to the bottom of the extrusion strengthening device 19, and the second sliders 20 are movably connected in adjacent grooves. A milling device 14 is provided on the top of the right horizontal plate 2. The right side of the right L-shaped plate 16 is fixedly connected to the right side of the milling device 14. The end of the right diagonal bar 15 away from the right L-shaped plate 16 is fixedly connected to the right side of the milling device 14. Two first sliders 17 are fixedly connected to the bottom of the milling device 14, and the first sliders 17 are movably connected in adjacent grooves. Swing plates 24 are provided on both the front and rear sides of the disc 1. Two first sliders 17 are provided on the bottom side of the swing plate 24 near the disc 1. Page, the swing plate 24 is movably connected to the outer edge of the disc 1 via the first hinge. A connecting plate 12 is attached to the bottom of each swing plate 24, and a fixing rod 8 is fixedly connected to the bottom of each connecting plate 12. A base plate 7 is fixedly connected to the bottom of each fixing rod 8, and a support rod 13 is fixedly connected to the outer edge of each fixing rod 8. An L-shaped support plate 27 is fixedly connected to the end of each support rod 13 away from the fixing rod 8. The L-shaped support plate 27 is attached to the outer edge of the disc 1. Two T-slots are opened at the top of each swing plate 24, and T-plates 31 are movably connected within each T-slot. An adjusting plate 30 is fixedly connected to the top of two adjacent T-plates 31. Vertical rods 29 are fixedly connected to the top of each adjusting plate 30 near its four corners, and a blower 6 is fixedly connected to the top of each of the four adjacent vertical rods 29.Each side of the swing plate 24 away from the disc 1 is provided with a limiting plate 28. Each limiting plate 28 has a second hinge at its bottom, and the limiting plate 28 is movably connected to the bottom of the swing plate 24 via the second hinge. Each limiting plate 28 has a connecting hole on its side away from the swing plate 24. Two movable slots are provided on the front and rear sides of the top of the rotating disk 41 near the left and right sides. Connecting clamps 32 are provided on the front and rear sides of the top of the rotating disk 41 near the left and right sides. Two movable blocks 34 are fixedly connected to the bottom of each connecting clamp 32. The movable blocks 34 are movably connected in adjacent movable slots. Each movable block 34 has a horizontal hole, and a threaded rod 36 passes through each horizontal hole. The front and rear ends of the threaded rod 36 are fixedly connected to the sidewalls of the movable slots. An annular groove is provided on one side of each movable block 34. Nuts 35 are threadedly connected to the outer edge of each threaded rod 36. Four adjusting blocks 37 are fixedly connected to the side of each nut 35 near the movable block 34. The adjusting blocks 37 are movably connected in adjacent annular grooves. Cavities are provided in the inner cavity of the connecting clamp 32 near the left and right sides. Vertical holes are provided on the top of the connecting clamp 32 near the left and right sides. The vertical holes and cavities are interconnected. The diameter of the vertical holes is smaller than the diameter of the cavities. A fixed plate 40 is provided, and an adjusting rod 38 is fixedly connected to the top of each fixed plate 40. An L-shaped clamp 33 is provided on the top of each connecting clamp 32. The top of the adjusting rod 38 is fixedly connected to the bottom of the L-shaped clamp 33. A spring 39 is sleeved on the outer edge of each adjusting rod 38 and is located in the cavity. A baffle 4 is fixedly connected to the top of the horizontal plate 2 near the front and rear sides. A first threaded hole is opened on the front and rear sides of the horizontal plate 2. Four movable plates 25 are attached to the outer edge of the disc 1. A third hinge is provided on one side of each movable plate 25. The movable plate 25 is movably connected to the outer edge of the disc 1 through the third hinge. A second threaded hole is opened on each movable plate 25. A bolt 26 is threaded into each second threaded hole. The bolt 26 is threaded into the adjacent first threaded hole. A support column 3 is fixedly connected to the bottom of the horizontal plate 2 near the four corners. Two limiting holes are opened at the center of the top of the transparent plate 5. An N-shaped rod 23 is provided in both limiting holes.

[0017] Working principle: Two blanks are placed on top of the rotating disk 41, with the two blanks located on the left and right sides of the transparent plate 5 respectively. Rotating the nut 35 causes the adjusting block 37 to rotate. The nut 35 rotates and moves on the surface of the threaded rod 36, causing the connecting clamp 32 to move. The connecting clamp 32 then moves the L-shaped clamp 33, bringing the front and rear connecting clamps 32 closer together and clamping the blanks. When clamping blanks of different thicknesses, the L-shaped clamp 33 is moved upwards. The L-shaped clamp 33 causes the adjusting rod 38 to move upwards, which in turn compresses the spring 39, causing the fixed disk 40 to move upwards. With the cooperation of the spring 39, the L-shaped clamp 33 presses and clamps the top of the blank. Immediately afterwards, the horizontal plate 2 is pushed, which moves the support column 3. The horizontal plate 2 moves closer to and fits against the disc 1. The fixing plate 21 enters the interior of the horizontal plate 2 to mill the blank. The right cylinder 18 drives the milling device 14 to the left through the right L-shaped plate 16 and the right inclined rod 15. The milling device 14 drives the first slider 17 to the left to align the milling device 14 with the blank. Then, the milling device 14 is started through the control panel to mill the blank. The baffle 4 can prevent debris and cutting fluid splashes. The cutting fluid will be discharged through the rotating disc 41 and the first and second filter holes on the disc 1. A collection frame can be placed at the bottom of the disc 1 to collect the cutting fluid. After the right blank milling is completed, the motor 9... The transmission rod 10 is driven to rotate, which in turn drives the rotating disk 41 to rotate. The rotating disk 41 then drives the transparent plate 5 to rotate, and finally drives the blank to rotate. After the rotating disk 41 rotates 90 degrees, the motor 9 is turned off. At this point, the milled blank will be located in front. The front swing plate 24 is adjusted and rotated to a vertical position. The front blower 6 is aligned with the milled blank, and one side of the front limiting plate 28 is placed on top of the transparent plate 5. The front limiting plate 28 is limited by the N-shaped rod 23, which in turn limits the front swing plate 24. The blower 6 blows air onto the surface of the milled blank to remove copper shavings and oil. Then, the motor 9 continues to drive the rotating disk 41 to rotate, and the milled blank is placed in the extrusion strengthening equipment. Below 19, the blank to be processed is located below the milling equipment 14, which performs milling on the blank. The extrusion strengthening equipment 19 performs extrusion strengthening on the milled blank. The left cylinder 18 moves the extrusion strengthening equipment 19 via the left L-shaped plate 16 and the left inclined rod 15. After the extrusion strengthening of the blank is completed, the nut 35 is rotated to remove the connecting clamp 32 and the L-shaped clamp 33 from the blank, allowing for disassembly. The movable plate 25, in conjunction with the bolt 26, can limit the horizontal plate 2. The connecting plate 12 supports the swing plate 24 via the fixed rod 8 and the base 7. The L-shaped support plate 27, in conjunction with the support rod 13, supports the disc 1. If it is necessary to disassemble the blower 6, the blower 6 is moved.The hair dryer 6 moves the T-shaped plate 31 via the vertical rod 29 and the adjusting plate 30, allowing the T-shaped plate 31 to be removed from the T-slot on the swing plate 24, thus enabling the hair dryer 6 to be disassembled.

Claims

1. A precision milling and surface strengthening device for conductive contacts of a disconnecting switch, comprising a disc (1), characterized in that: A circular groove is provided at the center of the top of the disc (1), and a rotating disk (41) is provided in the groove. A through hole is provided at the center of the bottom of the disc (1), and a motor (9) is provided at the center of the bottom of the disc (1). A transmission rod (10) is fixedly connected to the power output shaft of the motor (9). The top of the transmission rod (10) passes through the through hole and is fixedly connected to the bottom of the rotating disk (41). A fixing cylinder (11) is fixedly connected to the outer edge of the transmission rod (10) near the bottom. The fixing cylinder (11) is located at the bottom of the disc (1) and is sleeved on the outer edge of the motor (9). The top of the rotating disk (41) is... A transparent plate (5) is fixedly connected to the center of the part. Several first filter holes are opened on the rotating disk (41). Several second filter holes are opened at the bottom of the disk (1). Horizontal plates (2) are provided on both the left and right sides of the disk (1). Blind grooves are opened on the side of the horizontal plate (2) close to the disk (1). Movable grooves are opened at the top and bottom of the blind grooves. Fixed plates (21) are provided in the blind grooves. One side of the fixed plate (21) is fixedly connected to the outer edge of the disk (1). Movable blocks (22) are fixedly connected at the top and bottom of the fixed plate (21). The movable blocks (22) are movably connected in the adjacent movable grooves.

2. The apparatus for precision milling and surface strengthening of conductive contacts of a disconnecting switch according to claim 1, characterized in that: The horizontal plate (2) has grooves on the side away from the disc (1), and cylinders (18) are fixedly connected in the grooves. The end of the cylinder (18) away from the disc (1) is fixedly connected to an L-shaped plate (16). The top of the L-shaped plate (16) is fixedly connected to a slant rod (15). The top of the horizontal plate (2) is provided with a sliding groove near the front and rear sides. The top of the horizontal plate (2) on the left side is provided with an extrusion strengthening device (19). The side of the L-shaped plate (16) on the left side is fixedly connected to the left side of the extrusion strengthening device (19). The end of the slant rod (15) on the left side away from the left side of the L-shaped plate (16) is fixedly connected to the left side of the extrusion strengthening device (19). The bottom of the extrusion strengthening device (19) is fixedly connected to two second sliders (20). The second sliders (20) are movably connected in adjacent sliding grooves.

3. The apparatus for precision milling and surface strengthening of conductive contacts of a disconnecting switch according to claim 2, characterized in that: A milling device (14) is provided on the top of the right-side horizontal plate (2). The right side of the right-side L-shaped plate (16) is fixedly connected to the right side of the milling device (14). The end of the right-side inclined rod (15) away from the right-side L-shaped plate (16) is fixedly connected to the right side of the milling device (14). Two first sliders (17) are fixedly connected to the bottom of the milling device (14). The first sliders (17) are movably connected in adjacent grooves.

4. The apparatus for precision milling and surface strengthening of conductive contacts of a disconnecting switch according to claim 1, characterized in that: The disc (1) is provided with swing plates (24) on both the front and rear sides. The bottom of the swing plates (24) is provided with two first hinges on the side of the disc (1). The swing plates (24) are movably connected to the outer edge of the disc (1) through the first hinges. The bottom of the swing plates (24) is provided with connecting plates (12). The bottom of the connecting plates (12) is fixedly connected with fixing rods (8). The bottom end of the fixing rods (8) is fixedly connected with a base plate (7). The outer edge of the fixing rods (8) is fixedly connected with a support rod (13). The end of the support rods (13) away from the fixing rods (8) is fixedly connected with an L-shaped support plate (27). The L-shaped support plate (27) is attached to the outer edge of the disc (1).

5. The apparatus for precision milling and surface strengthening of conductive contacts of a disconnecting switch according to claim 4, characterized in that: The top of each swing plate (24) has two T-shaped grooves, and each T-shaped plate (31) is movably connected in the T-shaped groove. The tops of two adjacent T-shaped plates (31) are fixedly connected to an adjustment plate (30). The tops of the adjustment plate (30) are fixedly connected to vertical rods (29) near the four corners. The tops of the four adjacent vertical rods (29) are fixedly connected to a blower (6). The side of the swing plate (24) away from the disc (1) is provided with a limiting plate (28). The bottom of the limiting plate (28) is provided with a second hinge. The limiting plate (28) is movably connected to the bottom of the swing plate (24) through the second hinge. The side of the limiting plate (28) away from the swing plate (24) is provided with a connecting hole.

6. The apparatus for precision milling and surface strengthening of conductive contacts of a disconnecting switch according to claim 1, characterized in that: Two movable slots are provided on the front and rear sides of the top of the rotating disk (41) near the left and right sides. Connecting clamps (32) are provided on the front and rear sides of the top of the rotating disk (41) near the left and right sides. Two movable blocks (34) are fixedly connected to the bottom of the connecting clamps (32). The movable blocks (34) are movably connected in the adjacent movable slots. A horizontal hole is provided on each movable block (34). A threaded rod (36) is passed through each horizontal hole. The front and rear ends of the threaded rod (36) are fixedly connected to the side wall of the movable slot. An annular groove is provided on one side of each movable block (34). Nuts (35) are threadedly connected to the outer edge of each threaded rod (36). Four adjusting blocks (37) are fixedly connected to the side of each nut (35) near the movable block (34). The adjusting blocks (37) are movably connected in the adjacent annular grooves.

7. The apparatus for precision milling and surface strengthening of conductive contacts of a disconnecting switch according to claim 6, characterized in that: The inner cavity of the connecting clamp (32) is provided with cavities near the left and right sides. The top of the connecting clamp (32) is provided with vertical holes near the left and right sides. The vertical holes and cavities are interconnected. The diameter of the vertical holes is smaller than the diameter of the cavities. The cavities are provided with fixed plates (40). The top of the fixed plates (40) is fixedly connected with adjusting rods (38). The top of the connecting clamp (32) is provided with L-shaped clamps (33). The top of the adjusting rods (38) is fixedly connected to the bottom of the L-shaped clamps (33). The outer edge of the adjusting rods (38) is fitted with springs (39). The springs (39) are located in the cavities.

8. The apparatus for precision milling and surface strengthening of conductive contacts of a disconnecting switch according to claim 1, characterized in that: The top of the horizontal plate (2) is fixedly connected to baffles (4) near the front and rear sides. The front and rear sides of the horizontal plate (2) are provided with first threaded holes. The outer edge of the disc (1) is fitted with four movable plates (25). Each movable plate (25) is provided with a third hinge on one side. The movable plate (25) is movably connected to the outer edge of the disc (1) through the third hinge. Each movable plate (25) is provided with a second threaded hole. Each second threaded hole is threaded with a bolt (26). The bolt (26) is threaded in the adjacent first threaded hole.

9. The apparatus for precision milling and surface strengthening of conductive contacts of a disconnecting switch according to claim 1, characterized in that: The bottom of the horizontal plate (2) is fixedly connected to the four corners of the support column (3), and the top center of the transparent plate (5) has two limiting holes, and the two limiting holes are provided with an N-shaped rod (23).

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