Generator end cover punching machining device

Abstract

The invention relates to the technical field of generator end cover machining, in particular to a generator end cover punching machining device. Comprising a fixed guide rail, a sliding block, a first lead screw, a first nut and the like, first scales are engraved on the outer side of the fixed guide rail at intervals in the circumferential direction, the sliding block is slidably connected to the bottom of the fixed guide rail at intervals in the circumferential direction, the first lead screw is slidably connected into the sliding block, and second scales are engraved on the top of the first lead screw at intervals; and the first nut is in threaded connection with the first screw rod. Through precise matching of the first lead screw, the first nut, the second lead screw and the second nut, precise positioning of the drill bit in the horizontal direction and the vertical direction can be achieved, and an operator can precisely control the distance, relative to the circle center of the fixed guide rail, of the drill bit and the drilling depth of the drill bit by observing scales; according to the design, the accuracy of the drilling position can be improved, the adaptability of equipment to drilling requirements of generator end covers of different models can be enhanced, operation is easy, and the overall efficiency can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of generator end cover processing, and in particular to a generator end cover punching processing device. Background Art

[0002] With the rapid development of modern industry, generators, as key power sources, play an indispensable role in various mechanical equipment. The generator end cover is an important component of the generator, and its quality directly affects the performance and service life of the generator. In the manufacturing process of the generator end cover, punching is a crucial process, which involves the subsequent assembly accuracy and the stability of the overall structure.

[0003] Existing generator end cover drilling equipment usually has certain limitations when facing different models or different processing requirements. In the traditional way, when the drilling position needs to be changed to adapt to different design requirements, the operator usually needs to manually remove and reinstall the drill bit to the new preset installation hole. Although this method is direct, it greatly limits the scope of application of the equipment. Although some advanced generator end cover drilling equipment has introduced a slide rail design to increase the adjustability of the drill bit position, due to the limited maximum moving distance of the drill bit on the slide rail, these devices are still difficult to adapt to the different drilling requirements of various models of end covers. In addition, due to the lack of a precise positioning system, even if the drill bit is moved on the slide rail, it is difficult to ensure high-precision position adjustment, which may cause drilling position deviation and affect the quality of the final product. Therefore, the operator may need to try multiple times to reach the ideal drilling position. This process is not only time-consuming and labor-intensive, but also easily leads to material waste and cost increases. Summary of the invention

[0004] In view of this, the present invention provides a generator end cover drilling processing device, which can overcome the shortcomings of existing generator end cover drilling equipment, such as low flexibility when changing the drilling position, resulting in a small scope of application, and difficulty in ensuring high-precision position adjustment, cumbersome operation, and affecting overall efficiency.

[0005] The technical scheme of the present invention is: a generator end cover punching processing device, including a fixed guide rail, a slider, a first screw rod, a first nut, a sleeve, a rotating tube, a second screw rod, a second nut, a fixed tube, a drill bit, a fixing assembly, a locking assembly, a lifting mechanism and a conveying mechanism, the fixed guide rail is engraved with first scales at circumferential intervals on the outer side, the slider is slidably connected to the bottom of the fixed guide rail at circumferential intervals, the first screw rod is slidably connected in the slider, and the top of the first screw rod is engraved with second scales at intervals, the first nut is rotatably connected to the end of the slider, and the first nut is threadedly connected to the first screw rod, the sleeve is connected to the end of the first screw rod, the rotating tube is rotatably connected to the inside of the sleeve, the second screw rod is slidably connected in the rotating tube, and the surface of the second screw rod is engraved with third scales at intervals, the second nut is rotatably connected to the bottom of the rotating tube, and the second nut is threadedly connected to the second screw rod, the fixed tube is connected to the bottom of the second screw rod, the drill bit is installed in the fixed tube, the fixing assembly is used to fix the drill bit, the locking assembly is used to lock the slider, the lifting mechanism is used to drive the fixed guide rail to lift and lower, and the conveying mechanism is used to convey the generator end cover.

[0006] As a preferred technical solution of the present invention, the fixing assembly includes a clamping block and a connecting spring. The drill bit surface is symmetrically provided with clamping grooves. The clamping block is symmetrically slidably connected in the fixing tube and the clamping block is clamped in the clamping groove. The connecting spring connects the clamping block and the fixing tube.

[0007] As a preferred technical solution of the present invention, the locking assembly includes a guide rod, a sliding gear rack, a marking block and a reset spring. The outer side of the fixed guide rail is circumferentially spaced with tooth holes. The guide rod is connected to the bottom of the slider. The sliding gear rack is slidably connected to the guide rod, and the top of the sliding gear rack is stuck in the tooth hole. The marking block is connected to the side of the sliding gear rack. The reset spring connects the sliding gear rack and the guide rod.

[0008] As a preferred technical solution of the present invention, the lifting mechanism includes a mounting frame, a screw motor, a lifting frame, a rotating frame, a driving assembly and a limiting assembly. The screw motor is symmetrically installed on the mounting frame, the lifting frame is slidably connected to the mounting frame, and the lifting frame is threadedly connected to the screw of the screw motor, the rotating frame is rotatably connected to the lifting frame, and the top of the fixed guide rail is connected to the bottom of the rotating frame, the driving assembly is used to drive the rotating tube to rotate, and the limiting assembly is used to limit the rotating frame.

[0009] As a preferred technical solution of the present invention, the driving assembly includes a driving motor, a driving gear, a rotating column, a driven gear and a telescopic universal coupling. The driving motor is installed on the top of the rotating frame, the driving gear is connected to the output shaft of the driving motor, the rotating column is connected to the rotating frame with circumferential rotation, the driven gear is connected to the rotating column, and the driven gear is meshed with the driving gear, and the telescopic universal coupling connects the rotating column and the rotating tube.

[0010] As a preferred technical solution of the present invention, the limit assembly includes a sliding plate and a handle. The sliding plate is slidably connected to the lifting frame, and the fixed guide rail and the rotating frame are both provided with limit grooves compatible with the sliding plate. The handle is connected to the top of the rotating frame at circumferential intervals.

[0011] As a preferred technical solution of the present invention, the conveying mechanism includes a workbench, a ring guide rail conveyor line and a positioning mold. The bottom of the mounting frame is connected to the top of the workbench, the ring guide rail conveyor line is installed on the top of the workbench, and the positioning mold is circumferentially connected to the top of the conveyor belt of the ring guide rail conveyor line.

[0012] As a preferred technical solution of the present invention, it also includes a cleaning mechanism, which includes a baffle shell, a baffle plate, a fan, a baffle cover, a limit frame, a movable frame and a filter plate. The baffle shell is connected to the positioning mold, and the baffle shell is symmetrically provided with notches. The two baffle plates are symmetrically connected to the top of the workbench, and the annular guide rail conveyor line passes between the two baffle plates. The fan is installed on the side of one of the baffle plates, the baffle cover is connected to the air outlet of the fan, the limit frame is connected to the side of the workbench, the movable frame is located inside the limit frame and is interconnected, and the filter plate is connected to the side of the movable frame.

[0013] Beneficial effects: 1. The present invention can achieve precise positioning of the drill bit in the horizontal and vertical directions through the precise cooperation of the first screw rod, the first nut, the second screw rod and the second nut. The operator can accurately control the distance of the drill bit relative to the center of the fixed guide rail and the drilling depth by observing the scale. This design can not only improve the accuracy of the drilling position, but also enhance the adaptability of the equipment to the drilling requirements of different types of generator end covers. It is simple to operate and can improve the overall efficiency.

[0014] 2. The present invention can conveniently realize the rapid loading and unloading of the drill bit through the cooperation of the clamping block and the connecting spring. When the drill bit needs to be replaced, the new drill bit only needs to be inserted into the fixed tube until the clamping block automatically pops out and locks in the clamping groove on the surface of the drill bit. This design can ensure the firmness of the drill bit installation, simplify the replacement process, reduce downtime, and improve work efficiency.

[0015] 3. The present invention can effectively solve the problem of debris splashing generated during the punching process through the function of the cleaning mechanism. After the punching operation is completed, the fan blows air forward through the baffle cover, which can guide the debris in the baffle shell to the limit frame and finally collect it in the movable frame, thereby preventing pollution of the working environment and facilitating subsequent cleaning and maintenance. This not only improves the safety and cleanliness of the working environment, but also ensures the long-term stable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2It is a schematic diagram of the installation of the slider, the first screw rod, the first nut, the sleeve and the rotating tube of the present invention.

[0018] Figure 3 It is a schematic diagram of the installation of the second screw rod, the second nut, the fixing tube and the drill bit of the present invention.

[0019] Figure 4 It is a schematic diagram of the installation of the fixing assembly of the present invention.

[0020] Figure 5 It is a schematic diagram of the installation of the locking assembly of the present invention.

[0021] Figure 6 It is a schematic diagram of the specific structure of the sliding gear rack of the present invention.

[0022] Figure 7 It is a schematic diagram of the installation of the lifting mechanism of the present invention.

[0023] Figure 8 It is a schematic diagram of the installation of the drive assembly of the present invention.

[0024] Fig. 9 It is a schematic diagram of the installation of the limiting assembly of the present invention.

[0025] Fig.10 It is a schematic diagram of the installation of the conveying mechanism and the cleaning mechanism of the present invention.

[0026] The meanings of the reference numerals in the figure are: 1-fixed guide rail, 101-first scale, 2-slider, 3-first screw rod, 301-second scale, 4-first nut, 5-sleeve, 6-rotating tube, 7-second screw rod, 701-third scale, 8-second nut, 9-fixed tube, 10-drill bit, 11-slot, 12-block, 13-connecting spring, 14-tooth hole, 15-guide rod, 16-sliding gear rack, 1601-marking block, 17-reset spring, 18 -mounting frame, 19-screw motor, 20-lifting frame, 21-rotating frame, 22-driving motor, 23-driving gear, 24-rotating column, 25-driven gear, 26-telescopic universal coupling, 27-sliding plate, 28-handle, 29-workbench, 30-annular guide rail conveyor line, 31-positioning mold, 32-blocking shell, 3201-notch, 33-baffle, 34-blocking cover, 35-fan, 36-limiting frame, 37-moving frame, 38-filter plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment: A generator end cover punching processing device, such as Figure 1-Figure 9 As shown, it includes a fixed guide rail 1, a slider 2, a first screw rod 3, a first nut 4, a sleeve 5, a rotating tube 6, a second screw rod 7, a second nut 8, a fixed tube 9, a drill bit 10, a fixing assembly, a locking assembly, a lifting mechanism and a conveying mechanism. The upper outer portion of the fixed guide rail 1 is uniformly engraved with first scales 101 at circumferential intervals. A plurality of sliders 2 are slidably connected to the bottom of the fixed guide rail 1 at circumferential intervals. The interior of each slider 2 is slidably connected to a first screw rod 3, and the top of each first screw rod 3 is uniformly engraved with second scales 301 at intervals. The end of each slider 2 away from the center of the fixed guide rail 1 is rotatably connected. A first nut 4 is connected, and the first nut 4 is threadedly connected to the first screw rod 3. The end of each first screw rod 3 close to the center direction of the fixed guide rail 1 is connected with a sleeve 5. A rotating tube 6 is rotatably connected inside each sleeve 5. A second screw rod 7 is slidably connected inside each rotating tube 6. The surface of each second screw rod 7 is evenly engraved with third scales 701 at vertical intervals. A second nut 8 is also rotatably connected to the bottom of each rotating tube 6. The second nut 8 is threadedly connected to the second screw rod 7. A fixed tube 9 is connected to the bottom of each second screw rod 7. A drill bit 10 is installed in each fixed tube 9. By rotating forward and reverse The first nut 4 can control the first screw rod 3 to move horizontally toward or away from the center of the fixed guide rail 1, thereby driving the sleeve 5, the rotating tube 6, the second screw rod 7, the second nut 8, the fixed tube 9 and the drill bit 10 to move horizontally toward or away from the center of the fixed guide rail 1, ensuring that the drill bit 10 always remains in a vertical state. When the lower end of the drill bit 10 is aligned with the center of the fixed guide rail 1, the side of the first nut 4 away from the slider 2 is just aligned with the "0" scale on the second scale 301, so that the alignment of the lower end of the drill bit 10 with the center of the fixed guide rail 1 can be determined by observing the second scale 301. Similarly, by rotating the second nut 8 forwards and backwards, the second screw rod 7, the fixing tube 9 and the drill bit 10 can be controlled to rise and fall, thereby controlling the drilling depth of the drill bit 10. When the drilling depth of the drill bit 10 is zero, the bottom of the second nut 8 is just aligned with the "0" scale on the third scale 701. In this way, the drilling depth of the drill bit 10 can be determined by observing the third scale 701. The fixing assembly is used to fix the drill bit 10, the locking assembly is used to lock the slider 2, the lifting mechanism is used to drive the fixed guide rail 1 to rise and fall, and the conveying mechanism is used to convey the generator end cover.

[0029] like Figure 4 As shown, the fixing assembly includes a clamping block 12 and a connecting spring 13. Four clamping grooves 11 are circumferentially spaced apart at the upper end of each drill bit 10. Four clamping blocks 12 are circumferentially spaced apart and slidably connected inside each fixing tube 9. The clamping blocks 12 correspond to the clamping grooves 11 one by one, and the clamping blocks 12 are clamped in the corresponding clamping grooves 11. The two ends of the connecting spring 13 are respectively connected to the clamping block 12 and the fixing tube 9.

[0030] like Figure 5 and Figure 6 As shown, the locking assembly includes a guide rod 15, a sliding gear rack 16, a marking block 1601 and a return spring 17. The outer lower part of the fixed guide rail 1 is circumferentially spaced with tooth holes 14. The bottom of each slider 2 is connected to the guide rod 15, and the sliding gear rack 16 is slidably connected to the guide rod 15. The top shape of the sliding gear rack 16 is adapted to the tooth hole 14, and the top of the sliding gear rack 16 is stuck in the tooth hole 14, so that the slider 2 can be locked. The side of each sliding gear rack 16 away from the center of the fixed guide rail 1 is connected to a marking block 1601. The shape of the marking block 1601 is triangular, and the upper end of the marking block 1601 points to the first scale 101. Through the cooperation of the marking block 1601 and the first scale 101, the orientation of each slider 2 can be accurately known, and the angular difference between two adjacent sliders 2 can be known. A return spring 17 is wound around the outer side of each guide rod 15, and the two ends of the return spring 17 are respectively connected to the sliding gear rack 16 and the guide rod 15.

[0031] like Figure 7-Figure 9 As shown, the lifting mechanism includes a mounting frame 18, a screw motor 19, a lifting frame 20, a rotating frame 21, a driving assembly and a limiting assembly. Two screw motors 19 are symmetrically installed on the mounting frame 18. The lifting frame 20 is also slidably connected to the mounting frame 18, and the screws of the lifting frame 20 and the two screw motors 19 are threadedly connected. The front part of the lifting frame 20 is rotatably connected to the rotating frame 21, and the top of the fixed guide rail 1 is connected to the bottom of the rotating frame 21. The driving assembly is used to drive the rotating tube 6 to rotate, and the limiting assembly is used to limit the rotating frame 21; the driving assembly includes a driving motor 22, a driving gear 23, a rotating column 24, a driven gear 25 and a telescopic universal coupling 26. The driving motor 22 is installed on the front side of the top of the rotating frame 21, and the output shaft of the driving motor 22 is connected to There is a driving gear 23, and a plurality of rotating columns 24 are rotatably connected to the upper part of the rotating frame 21 at circumferential intervals. The rotating columns 24 correspond to the rotating tubes 6 one by one, and a driven gear 25 is connected to the upper part of each rotating column 24, and the driven gear 25 is meshed with the driving gear 23. A telescopic universal coupling 26 is connected between the bottom of the rotating column 24 and the top of the corresponding rotating tube 6; the limiting assembly includes a sliding plate 27 and a handle 28. The upper front side of the lifting frame 20 is slidably connected to the sliding plate 27, and the front sides of the fixed guide rail 1 and the rotating frame 21 are provided with limiting grooves adapted to the sliding plate 27. The sliding plate 27 is stuck in the limiting groove, thereby preventing the fixed guide rail 1 and the rotating frame 21 from rotating at will. Four handles 28 are circumferentially connected to the top of the rotating frame 21 to facilitate the control of the rotation of the rotating frame 21.

[0032] like Figure 1As shown, the conveying mechanism includes a workbench 29, a ring guide rail conveyor line 30 and a positioning mold 31. The bottom of the mounting frame 18 is connected to the middle of the top of the workbench 29. The ring guide rail conveyor line 30 is installed on the top of the workbench 29. The ring guide rail conveyor line 30 surrounds the outside of the mounting frame 18, and a plurality of positioning molds 31 are connected to the top of the conveyor belt of the ring guide rail conveyor line 30 at circumferential intervals.

[0033] When it is necessary to punch a hole in the generator end cover, the mechanical arm can first be used to place the generator end cover on the positioning mold 31 on the right front side, and then the annular guide rail conveyor line 30 can be controlled to start working. The annular guide rail conveyor line 30 will drive the positioning mold 31 to rotate intermittently clockwise. The positioning mold 31 will first drive the generator end cover on it to rotate to just below the drill bit 10, and then the positioning mold 31 will stop rotating. At this time, the mechanical arm can place the next generator end cover on the next positioning mold 31. At the same time, the driving motor 22 can be used to drive the driving gear 23 to rotate. The driving gear 23 can drive the driven gear 25, the rotating column 24, the telescopic universal coupling 26, the rotating tube 6, the second screw 7, the fixed tube 9 and the drill bit 10 to rotate, and The lifting frame 20 can be driven to descend by the screw motor 19, and the lifting frame 20 can drive the rotating frame 21, the fixed guide rail 1 and the drill bit 10 to descend. When the drill bit 10 descends to contact the generator end cover, the generator end cover can be punched. After the drilling is completed, the lifting frame 20 can be driven to rise and reset by the screw motor 19, and the lifting frame 20 can drive the rotating frame 21, the fixed guide rail 1 and the drill bit 10 to rise and reset, so that the drill bit 10 is separated from the generator end cover. Then the annular guide rail conveyor line 30 can drive the next generator end cover to move to the bottom of the drill bit 10, and the generator end cover with holes can be taken away manually. By repeating the above operation, the generator end cover can be punched continuously. When facing different models or different processing requirements, the drill bit can be first When the drill bit 10 is pulled down, the drill bit 10 will squeeze the block 12 through the slot 11 to retract, and the connecting spring 13 will be compressed, so that the drill bit 10 can be easily separated from the fixed tube 9, and then the upper end of the new drill bit 10 can be inserted into the fixed tube 9. When the slot 11 and the block 12 are aligned, the connecting spring 13 will return to its original state, driving the block 12 to pop out and re-engage in the slot 11 to fix the position of the drill bit 10, thereby achieving the purpose of conveniently replacing drill bits 10 of different sizes; then the sliding gear rack 16 can be pulled down, the reset spring 17 is compressed, and the sliding gear rack 16 is separated from the tooth hole 14, and then the slider 2 is moved along the fixed guide rail 1, so that the drill bit 10 can be driven to move, and the cooperation of the marking block 1601 and the first scale 101 can accurately The orientation of the drill bit 10 is accurately adjusted, and then the sliding gear rack 16 is loosened, the reset spring 17 will return to its original state, driving the sliding gear rack 16 to move upward and snap into the gear hole 14 to lock the slider 2; then the first nut 4 is rotated forwards and backwards, and the first nut 4 can drive the first screw rod 3 to move toward or away from the center of the fixed guide rail 1, thereby driving the drill bit 10 to move toward or away from the center of the fixed guide rail 1. The drilling position of the drill bit 10 can be accurately adjusted by observing the second scale 301. In the process of the drill bit 10 moving toward or away from the center of the fixed guide rail 1, the telescopic universal coupling 26 can be adaptively telescoped and tilted as the position of the drill bit 10 is adjusted, so that the drill bit 10 always remains in a vertical state;Then the second nut 8 can be rotated forward and backward, and the second nut 8 can drive the second screw rod 7, the fixed tube 9 and the drill bit 10 to rise and fall. By watching the third scale 701, the drilling depth of the drill bit 10 can be accurately adjusted. When the position, drilling position and drilling depth of a drill bit 10 are adjusted, the sliding plate 27 can be moved forward to disengage from the fixed guide rail 1 and the rotating frame 21 to release the limit of the fixed guide rail 1 and the rotating frame 21. Then the handle 28 can be used to rotate the rotating frame 21 and the fixed guide rail 1 to a suitable angle so that the next drill bit 10 is located in front. Then repeat the above operation to adjust the position, drilling position and drilling depth of each drill bit 10. After adjustment, move the sliding plate 27 backward to reset and re-limit the fixed guide rail 1 and the rotating frame 21. ;

[0034] like Figure 1 and Fig.10 As shown, it also includes a cleaning mechanism, which includes a baffle shell 32, a baffle plate 33, a fan 35, a baffle cover 34, a limit frame 36, a movable frame 37 and a filter plate 38. Each positioning mold 31 is connected to a baffle shell 32, and a notch 3201 is opened on both the front and rear sides of the baffle shell 32. Two baffle plates 33 are connected to the left front side of the top of the workbench 29. The annular guide rail conveyor line 30 passes between the two baffle plates 33, and the spacing between the two baffle plates 33 is adapted to the width of the baffle shell 32 so that the baffle plates 33 can smoothly pass between the two baffle plates 33. A fan 35 is installed on the left side of the baffle plate 33 on the rear side, and a baffle cover 34 is connected to the upper front part of the fan 35, and the rear side of the baffle cover 34 is connected to the fan 35. The air outlet is connected, the height of the bottom of the blocking cover 34 is adapted to the height of the top of the blocking shell 32, and the shape of the blocking cover 34 is adapted to the blocking shell 32, so that when the blocking shell 32 moves to the bottom of the blocking cover 34, the blocking shell 32 and the blocking cover 34 can cooperate to form a sealed space, the front left part of the workbench 29 is connected to a limit frame 36, the limit frame 36 is hollow, and a vent is provided on the upper rear side of the limit frame 36, the above-mentioned vent is located directly in front of the air outlet of the fan 35, the front side of the limit frame 36 is an open design, the moving frame 37 is located inside the limit frame 36, and the top of the moving frame 37 is an open design, and is interconnected with the inside of the limit frame 36, and the upper front side of the moving frame 37 is connected to a filter plate 38.

[0035] When the annular guide rail conveyor line 30 drives the generator end cover thereon to rotate to the position directly below the drill bit 10 through the positioning mold 31, the two baffles 33 can respectively block the front and rear sides of the generator end cover, thereby blocking the gaps 3201 on the front and rear sides of the corresponding baffle shell 32. When the drill bit 10 is drilling a hole in the generator end cover, the baffle shell 32 and the baffle 33 cooperate to block the debris generated during the drilling process to prevent the debris from splashing. When the drilling of the generator end cover is completed, the annular guide rail conveyor line 30 will drive the next generator end cover to rotate to the drill bit through the positioning mold 31. 10, and the generator end cover with a hole will rotate with the positioning mold 31 to the front of the fan 35. At this time, the generator end cover with a hole is also located just below the baffle 34, and the baffle 33 will no longer block the front and rear sides of the generator end cover with a hole. Then the fan 35 can blow air forward, and the cooperation of the baffle shell 32 and the baffle cover 34 can make the debris fly forward into the limit frame 36 and fall down into the moving frame 37. The wind in the moving frame 37 can be discharged through the filter plate 38, while the debris remains in the moving frame 37, which is convenient for subsequent unified treatment.

[0036] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A generator end cover punching device, characterized in that: The invention comprises a fixed guide rail (1), a slider (2), a first screw rod (3), a first nut (4), a sleeve (5), a rotating tube (6), a second screw rod (7), a second nut (8), a fixed tube (9), a drill bit (10), a fixing assembly, a locking assembly, a lifting mechanism and a conveying mechanism. The fixed guide rail (1) is engraved with first scales (101) at intervals in the circumferential direction on the outer side thereof. The slider (2) is slidably connected to the bottom of the fixed guide rail (1) at intervals in the circumferential direction. The first screw rod (3) is slidably connected to the inside of the slider (2), and second scales (301) are engraved at intervals on the top of the first screw rod (3). The first nut (4) is rotatably connected to the end of the slider (2), and the first nut (4) is threadedly connected to the first screw rod (3). The sleeve The tube (5) is connected to the end of the first screw rod (3), the rotating tube (6) is rotatably connected to the inside of the sleeve (5), the second screw rod (7) is slidably connected to the inside of the rotating tube (6), and the surface of the second screw rod (7) is engraved with third scales (701) at intervals, the second nut (8) is rotatably connected to the bottom of the rotating tube (6), and the second nut (8) is threadedly connected to the second screw rod (7), the fixed tube (9) is connected to the bottom of the second screw rod (7), the drill bit (10) is installed in the fixed tube (9), the fixing assembly is used to fix the drill bit (10), the locking assembly is used to lock the slider (2), the lifting mechanism is used to drive the fixed guide rail (1) to lift, and the conveying mechanism is used to convey the generator end cover.

2. A generator end cover punching device as claimed in claim 1, characterized in that: The fixing assembly comprises a clamping block (12) and a connecting spring (13); a clamping groove (11) is symmetrically formed on the surface of the drill bit (10); the clamping block (12) is symmetrically slidably connected in the fixing tube (9); the clamping block (12) is clamped in the clamping groove (11); and the connecting spring (13) connects the clamping block (12) and the fixing tube (9).

3. A generator end cover punching device as claimed in claim 2, characterized in that: The locking assembly comprises a guide rod (15), a sliding tooth rack (16), a marking block (1601) and a return spring (17); tooth holes (14) are spaced circumferentially on the outer side of the fixed guide rail (1); the guide rod (15) is connected to the bottom of the slider (2); the sliding tooth rack (16) is slidably connected to the guide rod (15), and the top of the sliding tooth rack (16) is stuck in the tooth hole (14); the marking block (1601) is connected to the side of the sliding tooth rack (16); and the return spring (17) connects the sliding tooth rack (16) and the guide rod (15).

4. A generator end cover punching device as claimed in claim 3, characterized in that: The lifting mechanism comprises a mounting frame (18), a screw motor (19), a lifting frame (20), a rotating frame (21), a driving assembly and a limiting assembly, wherein the screw motor (19) is symmetrically mounted on the mounting frame (18), the lifting frame (20) is slidably connected to the mounting frame (18), and the lifting frame (20) is threadedly connected to the screw of the screw motor (19), the rotating frame (21) is rotatably connected to the lifting frame (20), and the top of the fixed guide rail (1) is connected to the bottom of the rotating frame (21), the driving assembly is used to drive the rotating tube (6) to rotate, and the limiting assembly is used to limit the rotating frame (21).

5. A generator end cover punching device as claimed in claim 4, characterized in that: The driving assembly comprises a driving motor (22), a driving gear (23), a rotating column (24), a driven gear (25) and a telescopic universal coupling (26). The driving motor (22) is mounted on the top of the rotating frame (21). The driving gear (23) is connected to the output shaft of the driving motor (22). The rotating column (24) is connected to the rotating frame (21) in a circumferentially spaced rotational manner. The driven gear (25) is connected to the rotating column (24), and the driven gear (25) is meshed with the driving gear (23). The telescopic universal coupling (26) connects the rotating column (24) and the rotating tube (6).

6. A generator end cover punching device as claimed in claim 5, characterized in that: The limiting assembly comprises a sliding plate (27) and a handle (28), wherein the sliding plate (27) is slidably connected to the lifting frame (20), and limiting grooves matching the sliding plate (27) are formed on the fixed guide rail (1) and the rotating frame (21), and the handle (28) is connected to the top of the rotating frame (21) at intervals in the circumferential direction.

7. A generator end cover punching device as claimed in claim 6, characterized in that: The conveying mechanism comprises a workbench (29), an annular guide rail conveying line (30) and a positioning mold (31); the bottom of the mounting frame (18) is connected to the top of the workbench (29); the annular guide rail conveying line (30) is installed on the top of the workbench (29); and the positioning mold (31) is connected to the top of the conveyor belt of the annular guide rail conveying line (30) at circumferential intervals.

8. A generator end cover punching device as claimed in claim 7, characterized in that: The cleaning mechanism also includes a baffle (32), a baffle (33), a fan (35), a baffle cover (34), a limit frame (36), a movable frame (37) and a filter plate (38). The baffle (32) is connected to the positioning mold (31), and the baffle (32) is symmetrically provided with notches (3201). The two baffles (33) are symmetrically connected to the top of the workbench (29), and the annular guide rail conveyor line (30) passes between the two baffles (33). The fan (35) is installed on the side of one of the baffles (33), the baffle cover (34) is connected to the air outlet of the fan (35), the limit frame (36) is connected to the side of the workbench (29), the movable frame (37) is located inside the limit frame (36) and is connected to each other, and the filter plate (38) is connected to the side of the movable frame (37).

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