Novel asynchronous motor rotor end ring structure and welding device

Abstract

The invention discloses a novel asynchronous motor rotor end ring structure and a welding device, and belongs to the technical field of motor rotors, the novel asynchronous motor rotor end ring structure comprises an end ring and a conducting bar, the outer diameter of the end ring is 806mm, the inner diameter of the end ring is 698mm, the thickness of the end ring is 25mm, a plurality of slots are formed in the side face of the end ring at equal intervals, the number of the slots is 86, and the number of the slots is 86mm. The end ring is provided with a plurality of slots, the slots are arranged at equal intervals in the circumferential direction of the end ring, the length of each slot is 60 mm, the width of each slot is 7 mm, the length of each guide strip is 56 mm, and the width of each guide strip is 5 mm. The method has the effect of reducing the waste of the welding flux.

Description

Technical Field

[0001] The present application relates to the technical field of motor rotors, and in particular to a novel asynchronous motor rotor end ring structure and a welding device. Background Art

[0002] In the field of motor manufacturing, asynchronous motors are widely used in various industrial scenarios due to their unique advantages. Among them, the rotor is the core component of the asynchronous motor, and its structure and manufacturing process have a crucial impact on the overall performance and stability of the motor. In the structure of the rotor, the connection between the end ring and the guide bar is the key link in forming a squirrel cage rotor. The quality of this connection is directly related to the motor's ability to start and continue to operate.

[0003] The end rings of the asynchronous copper bar rotor and the bars form a squirrel cage rotor. When the motor starts, the bars are cut by the changing magnetic flux of the stator, forming an induced voltage. The bars and the end rings are welded together to form a short circuit, forming an induced current. The current is generated and the outer diameter of the rotor forms a force arm, which in turn generates torque. The connection between the bars and the end rings must withstand the unilateral electromagnetic pull of the motor, the centrifugal force and shear stress when the magnetic poles rotate, and the vibration caused by sudden changes in load.

[0004] Conventional end ring mechanisms are machined with 5mm deep circumferential grooves, and the guide bars are evenly distributed in a circumferential arrangement. There are large gaps between the guide bars, and these gaps need to be bridged with solder, which has a high cost. Summary of the invention

[0005] In order to improve the problem of large amount of solder required for welding end rings and guide bars, the present application provides a novel asynchronous motor rotor end ring structure and welding device.

[0006] The present application provides a novel asynchronous motor rotor end ring structure and welding device adopting the following technical solutions: A novel asynchronous motor rotor end ring structure comprises an end ring and a guide bar, wherein the outer diameter of the end ring is 806 mm, the inner diameter of the end ring is 698 mm, the thickness of the end ring is 25 mm, a plurality of slots are evenly spaced on the side surface of the end ring, the number of the slots is 86, and the plurality of slots are evenly spaced along the circumference of the end ring, the length of the slot is 60 mm, the width of the slot is 7 mm, the length of the guide bar is 56 mm, and the width of the guide bar is 5 mm.

[0007] By adopting the above technical solution, the guide bar is inserted into the slot of the end ring, and the gap between the guide bar and the end ring is filled with solder, and then the end ring and the guide bar are welded to form a whole; the application accurately calculates and optimizes the depth, width and spacing of the slot on the end ring, and by increasing the depth of the slot, the guide bar can be more firmly embedded therein, reducing the risk of loosening during the operation of the motor; at the same time, the optimized slot width matches the guide bar width, ensuring uniform heating during the welding process and improving the welding quality; and the spacing between the slots is scientifically adjusted, which not only ensures the structural strength of the rotor, but also minimizes the waste of solder.

[0008] A novel asynchronous motor rotor end ring welding device comprises a heating table and a mounting table, wherein a feed tray is rotatably mounted on the mounting table, a control component for controlling the vertical movement of the feed tray is arranged on the mounting table, a plurality of feed troughs are provided on the bottom surface of the feed tray, the feed troughs correspond to the slots one by one, a receiving groove is provided on the inner wall of the feed trough, a bearing sheet is installed on the feed tray for radial sliding movement along itself through the receiving groove, a welding sheet is placed on the top surface of the bearing sheet, and a moving component for pushing the bearing sheet to move is arranged on the feed tray.

[0009] By adopting the above technical solution, the end ring is placed above the heating table, and then the feed tray is rotated to the top of the end ring, and the feed tray is moved downward so that the feed groove is aligned with the corresponding slot. The moving component is used to drive the carrier plate to move radially along the feed tray, so that the welding piece above the carrier plate can move downward into the slot under the action of its own gravity, so as to facilitate the subsequent welding of the end ring and the guide bar.

[0010] Preferably, the moving assembly includes a moving block fixedly connected to the supporting plate, a moving groove is provided on the bottom surface of the loading tray, and the moving block is slidingly connected to the loading tray along the radial direction of the loading tray through the moving groove, a dovetail block is fixed on the top surface of the moving block, a dovetail groove is provided on the inner top surface of the moving groove, and the dovetail block is slidingly cooperated with the loading tray along the radial direction of the loading tray through the dovetail groove, a spring is fixed on the side of the dovetail block away from the supporting plate, one end of the spring away from the dovetail block is fixedly connected to the inner wall of the dovetail groove, and a pulling member is provided on the loading tray for driving the moving block to move in a direction away from the supporting plate.

[0011] By adopting the above technical solution, the dovetail block and the spring enable the moving block to move smoothly. After the feed trough is aligned with the slot of the end ring, the welding piece is located above the supporting piece, and the pulling member drives the moving block to move in the direction away from the supporting piece, so that the welding piece above the supporting piece can move downward smoothly.

[0012] Preferably, the pulling member includes a pulling block, a pulling groove is opened on the top surface of the unloading tray, and the pulling block is slidably cooperated with the unloading tray in the vertical direction through the pulling groove, a pulling rope is fixed to the side of the moving block away from the supporting plate, and one end of the pulling rope away from the moving block is fixedly connected to the pulling block, a cylinder 1 is installed on the top surface of the unloading tray, a pulling plate is fixed to the top end of the piston rod of the cylinder 1, a pulling rod is fixed to the top surface of the pulling block, and the top end of the pulling rod is fixedly connected to the pulling plate.

[0013] By adopting the above technical solution, cylinder one is started, and cylinder one drives the pulling block to move upward through the pulling plate and the pulling rod. The pulling block drives several moving blocks to move synchronously through the pull rope, so that several welding pieces can move downward synchronously, thereby improving the placement efficiency of the welding pieces.

[0014] Preferably, the top surface of the feed tray is provided with a plurality of placement grooves for placing the welding sheets, the placement grooves correspond to the feed trays one by one, the bottoms of the placement grooves are connected with the corresponding feed trays, the placement grooves are provided with push grooves on the inner walls away from the supporting sheet, the feed tray is provided with push blocks for radial sliding along the pushing grooves, and the push blocks are used to push the welding sheets to move above the supporting sheet.

[0015] By adopting the above technical solution, when the welding piece above the carrier sheet falls and the carrier sheet is reset under the elastic force of spring 1, the pushing block pushes the welding piece at the bottom of the placement slot to above the carrier sheet, so that the welding piece can be smoothly moved to above the carrier sheet.

[0016] Preferably, a rack is fixed on the side of the pushing block away from the supporting plate, and a plurality of rotating chambers are provided in the unloading tray. A gear is rotatably installed in the rotating chamber, and the gear corresponds to the rack one by one, and the gear is meshed with the corresponding rack one.

[0017] By adopting the above technical solution, gear one is rotated, gear one drives rack one to move, and rack one drives the push block to reciprocate along the radial direction of the unloading tray.

[0018] Preferably, a cavity is provided in the unloading tray, an inner gear ring is rotatably installed in the cavity, a plurality of rotating rods are rotatably installed in the cavity, a gear 2 is sleeved and fixed on the outer circumference of the rotating rod, the gear 2 is meshed with the inner gear ring, a gear sleeve is fixed on the outer circumference of the rotating rod, a motor 1 is installed on the unloading tray, and the output end of the motor 1 is fixedly connected to the end of one of the rotating rods.

[0019] By adopting the above technical solution, motor one is started, and motor one drives several gears two to rotate synchronously through the inner gear ring, thereby driving several rotating rods to rotate synchronously, and the synchronous rod drives gear one to rotate, thereby realizing the synchronous movement of several welding pieces.

[0020] Preferably, a plurality of placement frames are fixed on the top surface of the unloading tray, the placement frames are connected with the placement grooves, a pressure block is installed in the placement frame for vertical sliding, a sliding block is fixed on the side of the pressure block, a sliding groove is opened on the side of the placement frame, and the sliding block slides vertically with the placement frame through the sliding groove.

[0021] By adopting the above technical solution, the pressing block and the sliding block can ensure the stability of the welding piece during the placement process and reduce the possibility of misalignment of the welding piece during the movement process.

[0022] Preferably, a mounting rod is rotatably mounted on the top surface of the mounting platform, a mounting circular plate is fixedly sleeved on the outer circumferential surface of the mounting rod, a second motor is mounted on the mounting platform, and an output end of the second motor is fixedly connected to the bottom end of the mounting rod.

[0023] By adopting the above technical solution, motor 2 is started, and motor 2 drives the mounting rod and the mounting platform to rotate, thereby realizing the rotation and positioning of the unloading tray, so that the unloading tray can be rotated to just above the end ring.

[0024] Preferably, the control assembly includes a screw and a guide rod rotatably mounted on the top surface of the mounting circular plate, a fixing plate is installed on the top end of the screw and the guide rod, a control block is fixed on the outer circumferential surface of the discharge tray, the control block is sleeved on the outer circumference of the screw and the guide rod, the control block cooperates with the screw thread transmission, a motor three is installed on the fixing plate, and the output end of the motor three is fixedly connected to the top end of the screw.

[0025] By adopting the above technical solution, the motor three is started, and the motor three drives the screw to rotate, thereby realizing the lifting and lowering of the unloading tray.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. Insert the guide bar into the slot of the end ring, fill the gap between the guide bar and the end ring with solder, and then weld the end ring and the guide bar to form a whole; the application accurately calculates and optimizes the depth, width and spacing of the slot on the end ring, and by increasing the depth of the notch, the guide bar can be more firmly embedded therein, reducing the risk of loosening during the operation of the motor; at the same time, the optimized slot width matches the guide bar width, ensuring uniform heating during welding and improving welding quality; and the spacing between the slots is scientifically adjusted, which not only ensures the structural strength of the rotor, but also minimizes the waste of solder; 2. Place the end ring on the top of the heating table, rotate the feed tray to the top of the end ring, move the feed tray downward so that the feed slot is aligned with the corresponding slot, and use the moving assembly to drive the carrier to move radially along the feed tray, so that the welding piece above the carrier moves downward into the slot under its own gravity, so as to facilitate the subsequent welding of the end ring and the guide bar; 3. The dovetail block and the spring enable the moving block to move smoothly. After aligning the feed trough with the slot of the end ring, the welding piece is located above the carrier sheet, and the pulling member drives the moving block to move away from the carrier sheet, so that the welding piece above the carrier sheet can move downward smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of the end ring in the novel asynchronous motor rotor end ring structure in the embodiment of the present application.

[0028] Figure 2 It is a schematic diagram of the installation of end rings and guide bars in the novel asynchronous motor rotor end ring structure in the embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the overall structure of a novel asynchronous motor rotor end ring welding device according to an embodiment of the present application.

[0030] Figure 4 It is a structural schematic diagram of a mounting table and a feed tray in a novel asynchronous motor rotor end ring welding device according to an embodiment of the present application.

[0031] Figure 5 It is a cross-sectional view of a feed tray in a novel asynchronous motor rotor end ring welding device according to an embodiment of the present application.

[0032] Figure 6 It is a cross-sectional view of a placement frame in a novel asynchronous motor rotor end ring welding device according to an embodiment of the present application.

[0033] Figure numerals: 1, end ring; 11, slot; 2, guide bar; 3, heating table; 31, mounting table; 32, mounting rod; 33, mounting circular plate; 34, motor 2; 35, screw; 36, guide rod; 37, fixing plate; 38, motor 3; 39, control block; 4, unloading plate; 41, unloading trough; 42, receiving trough; 43, bearing sheet; 44, welding sheet; 5, moving block; 51, moving trough; 52, dovetail block; 53, dovetail trough ; 54. Spring 1; 6. Pull block; 61. Pull through groove; 62. Cylinder 1; 63. Pull plate; 64. Pull rod; 65. Pull rope; 7. Placement frame; 71. Placement groove; 72. Press block; 73. Sliding block; 74. Sliding groove; 75. Push block; 76. Push groove; 77. Rack 1; 8. Gear 1; 81. Rotating cavity; 82. Inner gear ring; 83. Cavity; 84. Rotating rod; 85. Gear 2; 86. Motor 1. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] The embodiment of the present application discloses a novel asynchronous motor rotor end ring structure and welding device. Figure 1 and Figure 2 The new asynchronous motor rotor end ring structure includes an end ring 1 and a guide bar 2. The outer diameter of the end ring 1 is 806 mm, the inner diameter of the end ring 1 is 698 mm, the thickness of the end ring 1 is 25 mm, and a plurality of slots 11 are evenly spaced on the side of the end ring 1. The number of slots 11 is 86, and the plurality of slots 11 are evenly spaced along the circumference of the end ring 1. The length of the slot 11 is 60 mm, the width of the slot 11 is 7 mm, the length of the guide bar 2 is 56 mm, and the width of the guide bar 2 is 5 mm.

[0036] The guide bar 2 is inserted into the slot 11. The gap area between the guide bar 2 and the end ring 1 is 120.4 square centimeters, the volume is 301.2 cubic centimeters, and the required solder is 301.2 cubic centimeters. The common end ring 1 structure requires all the solder to be piled up for welding between the guide bars 2, which requires 517.14 cubic centimeters of solder. In comparison, the end ring 1 structure of the present application saves 41.7% of the solder usage, and the workers' welding time is also saved by 41.7% accordingly.

[0037] Reference Figure 3 and Figure 4 A novel asynchronous motor rotor end ring welding device includes a heating table 3 and a mounting table 31, on which a feed tray 4 is mounted. A mounting rod 32 is rotatably mounted on the top surface of the mounting table 31, and a mounting circular plate 33 is sleeved and fixed on the outer circumference of the mounting rod 32. A motor 2 34 is mounted on the mounting table 31, and the output end of the motor 2 34 is fixedly connected to the bottom end of the mounting rod 32. A vertically arranged screw 35 and a guide rod 36 are rotatably mounted on the top surface of the mounting circular plate 33, and a fixing plate 37 is installed on the top of the screw 35 and the guide rod 36, and the guide rod is fixedly connected to the fixing plate 37. A motor 38 is mounted on the fixing plate 37, and the output end of the motor 38 is fixedly connected to the top of the screw 35. A control block 39 is fixed on the outer circumference of the feed tray 4, and the control block 39 is sleeved on the outer circumference of the screw 35 and the guide rod 36, and the control block 39 is threadedly matched with the screw 35.

[0038] Reference Figure 5 and Figure 6 The bottom surface of the material tray 4 is provided with a plurality of material trays 41, and the plurality of material trays 41 are arranged at equal intervals along the circumference of the material tray 4. The material trays 41 correspond to the slots 11 one by one, and the inner wall of the material trays 41 is provided with receiving grooves 42, and the material tray 4 is provided with a bearing sheet 43 which is slidably mounted along its radial direction through the receiving grooves 42, and a welding sheet 44 is placed on the top surface of the bearing sheet 43.

[0039] Reference Figure 5 and Figure 6 The bottom surface of the material tray 4 is provided with a moving groove 51, and the material tray 4 is provided with a moving block 5 that slides along its radial direction through the moving groove 51, and the moving block 5 is fixedly connected to the carrier sheet 43. A dovetail block 52 is fixed on the top surface of the moving block 5, and a dovetail groove 53 is provided on the inner top surface of the moving groove 51, and the dovetail block 52 slides and cooperates with the material tray 4 along the radial direction of the material tray 4 through the dovetail groove 53. A spring 54 is fixed on the side of the dovetail block 52 away from the carrier sheet 43, and one end of the spring 54 away from the dovetail block 52 is fixedly connected to the inner wall of the dovetail groove 53.

[0040] Reference Figure 5 and Figure 6 The top surface of the unloading tray 4 is provided with a pulling slot 61, and the unloading tray 4 is provided with a pulling block 6 that slides vertically through the pulling slot 61. A pull rope 65 is fixed to the side of the moving block 5 away from the carrier sheet 43, and one end of the pull rope 65 away from the moving block 5 is fixedly connected to the pulling block 6. A cylinder 1 62 is installed on the top surface of the unloading tray 4, and a pulling plate 63 is fixed to the top of the piston rod of the cylinder 1 62. A pulling rod 64 is fixed to the top surface of the pulling block 6, and the top of the pulling rod 64 is fixedly connected to the pulling plate 63.

[0041] Start cylinder 1 62, which drives the pulling block 6 to move upward through the pulling plate 63 and the pulling rod 64. The pulling block 6 drives several moving blocks 5 to move synchronously in the direction away from the receiving plate through the pulling rope 65, so that the welding plate 44 above the supporting plate 43 can move downward to the slot 11 of the end ring 1 under the action of its own gravity.

[0042] Reference Figure 5 and Figure 6 The top surface of the material tray 4 is provided with a plurality of placement grooves 71 for placing the solder sheets 44. The placement grooves 71 correspond to the material tray 41 one by one, and the bottoms of the placement grooves 71 are connected to the corresponding material tray 41. A plurality of placement frames 7 are fixed to the top surface of the material tray 4, and the placement frames 7 are connected to the placement grooves 71. A pressing block 72 is installed in the placement frame 7 along the vertical sliding direction, and a sliding block 73 is fixed to the side of the pressing block 72. A sliding groove 74 is provided on the side of the placement frame 7, and the sliding block 73 slides vertically with the placement frame 7 through the sliding groove 74.

[0043] Reference Figure 5 and Figure 6, a pushing groove 76 is provided on the inner wall of the placement groove 71 away from the carrier sheet 43, and a pushing block 75 is installed on the unloading tray 4 to slide along its radial direction through the pushing groove 76, and the pushing block 75 is used to push the welding sheet 44 to move above the carrier sheet 43. A rack 1 77 is fixed on the side of the pushing block 75 away from the carrier sheet 43, and a plurality of rotating cavities 81 are provided in the unloading tray 4, and a gear 1 8 is rotatably installed in the rotating cavity 81. The gear 1 8 corresponds to the rack 1 77 one by one, and the gear 1 8 and the corresponding rack 1 77 are meshed with each other. A cavity 83 is provided in the unloading tray 4, and an inner gear ring 82 is rotatably installed in the cavity 83, and a plurality of rotating rods 84 are rotatably installed in the cavity 83, and the gear 1 8 is sleeved and fixed on the outer periphery of the rotating rod 84. A gear 2 85 is sleeved and fixed on the outer periphery of the rotating rod 84, and the gear 2 85 and the inner gear ring 82 are meshed with each other. A motor 86 is installed on the unloading tray 4, and the output end of the motor 86 is fixedly connected to the end of one of the rotating rods 84.

[0044] Start motor 86, which drives several gears 85 to rotate synchronously through the inner gear ring 82, and then drives several rotating rods 84 to rotate synchronously. The synchronous rod drives gear 8 to rotate, gear 8 drives rack 77 to move, and rack 77 drives the pushing block 75 to reciprocate along the radial direction of the discharge tray 4, thereby pushing the welding piece 44 to move.

[0045] The implementation principle of a novel asynchronous motor rotor end ring structure in an embodiment of the present application is as follows: inserting the guide bar 2 into the slot 11 of the end ring 1, and filling the gap between the guide bar 2 and the end ring 1 with solder, and then welding the end ring 1 and the guide bar 2 to form a whole, by accurately calculating and optimizing the depth, width and spacing of the slot 11 on the end ring 1, and increasing the depth of the slot, so that the guide bar 2 can be more firmly embedded therein, reducing the risk of loosening during the operation of the motor; at the same time, the width of the optimized slot 11 matches the width of the guide bar 2, ensuring uniform heating during the welding process and improving the welding quality; and the spacing between the slots 11 is scientifically adjusted, which not only ensures the structural strength of the rotor, but also minimizes the waste of solder.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A novel asynchronous motor rotor end ring structure, characterized in that: The invention comprises an end ring (1) and a guide bar (2), wherein the outer diameter of the end ring (1) is 806 mm, the inner diameter of the end ring (1) is 698 mm, the thickness of the end ring (1) is 25 mm, a plurality of slots (11) are evenly spaced on the side surface of the end ring (1), the number of the slots (11) is 86, and the plurality of slots (11) are evenly spaced along the circumference of the end ring (1), the length of the slots (11) is 60 mm, the width of the slots (11) is 7 mm, the length of the guide bar (2) is 56 mm, and the width of the guide bar (2) is 5 mm.

2. A novel asynchronous motor rotor end ring welding device, based on the novel asynchronous motor rotor end ring structure according to claim 1, characterized in that: The invention comprises a heating table (3) and a mounting table (31), wherein a material discharge tray (4) is rotatably mounted on the mounting table (31), and a control component for controlling the vertical movement of the material discharge tray (4) is arranged on the mounting table (31), and a plurality of material discharge grooves (41) are provided on the bottom surface of the material discharge tray (4), and the material discharge grooves (41) correspond to the slots (11) one by one, and receiving grooves (42) are provided on the inner walls of the material discharge grooves (41), and a bearing sheet (43) is installed on the material discharge tray (4) through the receiving grooves (42) so as to slide along its own radial direction, and a welding sheet (44) is placed on the top surface of the bearing sheet (43), and a moving component for pushing the bearing sheet (43) to move is arranged on the material discharge tray (4).

3. A novel asynchronous motor rotor end ring welding device according to claim 2, characterized in that: The moving assembly comprises a moving block (5) fixedly connected to the carrying plate (43); a moving groove (51) is provided on the bottom surface of the material tray (4); the moving block (5) is slidably connected to the material tray (4) along the radial direction of the material tray (4) through the moving groove (51); a dovetail block (52) is fixed on the top surface of the moving block (5); a dovetail groove (53) is provided on the inner top surface of the moving groove (51); the dovetail block (52) is connected to the material tray (4) through the moving groove (51); The dovetail groove (53) is slidably matched with the discharge tray (4) along the radial direction of the discharge tray (4), and a spring (54) is fixed to the side of the dovetail block (52) away from the supporting plate (43), and one end of the spring (54) away from the dovetail block (52) is fixedly connected to the inner wall of the dovetail groove (53), and a pulling member is provided on the discharge tray (4) for driving the moving block (5) to move in a direction away from the supporting plate (43).

4. A novel asynchronous motor rotor end ring welding device according to claim 3, characterized in that: The pulling member comprises a pulling block (6), a pulling groove (61) is provided on the top surface of the unloading tray (4), and the pulling block (6) is slidably matched with the unloading tray (4) in the vertical direction through the pulling groove (61), a pulling rope (65) is fixed on the side of the moving block (5) away from the supporting plate (43), and one end of the pulling rope (65) away from the moving block (5) is fixedly connected to the pulling block (6), a cylinder 1 (62) is installed on the top surface of the unloading tray (4), and a pulling plate (63) is fixed on the top end of the piston rod of the cylinder 1 (62), and a pulling rod (64) is fixed on the top surface of the pulling block (6), and the top end of the pulling rod (64) is fixedly connected to the pulling plate (63).

5. A novel asynchronous motor rotor end ring welding device according to claim 3, characterized in that: The top surface of the material discharge tray (4) is provided with a plurality of placement grooves (71) for placing the welding sheets (44), the placement grooves (71) corresponding to the material discharge grooves (41) one by one, the bottoms of the placement grooves (71) being connected to the corresponding material discharge grooves (41), the inner walls of the placement grooves (71) away from the carrier sheet (43) are provided with push grooves (76), the material discharge tray (4) is provided with push blocks (75) for radial sliding movement along itself through the push grooves (76), and the push blocks (75) are used to push the welding sheets (44) to move to above the carrier sheet (43).

6. A novel asynchronous motor rotor end ring welding device according to claim 5, characterized in that: A rack (77) is fixed to the side of the pushing block (75) away from the supporting plate (43); a plurality of rotating chambers (81) are arranged in the unloading tray (4); a gear (8) is rotatably installed in the rotating chamber (81); the gear (8) corresponds to the rack (77) one by one, and the gear (8) and the corresponding rack (77) are meshed with each other.

7. A novel asynchronous motor rotor end ring welding device according to claim 6, characterized in that: A cavity (83) is provided in the unloading tray (4), an inner gear ring (82) is rotatably mounted in the cavity (83), a plurality of rotating rods (84) are rotatably mounted in the cavity (83), a second gear (85) is sleeved and fixed on the outer circumference of the rotating rod (84), the second gear (85) and the inner gear ring (82) are meshed with each other, the first gear (8) is sleeved and fixed on the outer circumference of the rotating rod (84), a motor (86) is mounted on the unloading tray (4), and an output end of the motor (86) is fixedly connected to the end of one of the rotating rods (84).

8. A novel asynchronous motor rotor end ring welding device according to claim 7, characterized in that: A plurality of placement frames (7) are fixed on the top surface of the unloading tray (4), the placement frames (7) are connected to the placement grooves (71), a pressure block (72) is installed in the placement frame (7) for vertical sliding movement, a sliding block (73) is fixed on the side of the pressure block (72), a sliding groove (74) is provided on the side of the placement frame (7), and the sliding block (73) is slidably matched with the placement frame (7) in the vertical direction through the sliding groove (74).

9. A novel asynchronous motor rotor end ring welding device according to claim 2, characterized in that: A mounting rod (32) is rotatably mounted on the top surface of the mounting platform (31), a mounting circular plate (33) is sleeved and fixedly mounted on the outer circumference of the mounting rod (32), a second motor (34) is mounted on the mounting platform (31), and an output end of the second motor (34) is fixedly connected to the bottom end of the mounting rod (32).

10. A novel asynchronous motor rotor end ring welding device according to claim 9, characterized in that: The control assembly comprises a screw (35) and a guide rod (36) rotatably mounted on the top surface of the mounting circular plate (33); a fixing plate (37) is mounted on the top of the screw (35) and the guide rod (36); a control block (39) is fixed on the outer circumference of the unloading tray (4); the control block (39) is sleeved on the outer circumference of the screw (35) and the guide rod (36); the control block (39) and the screw (35) are threadedly matched; a motor three (38) is mounted on the fixing plate (37); and an output end of the motor three (38) is fixedly connected to the top of the screw (35).

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