New energy automobile self-bonding stator core induction heating equipment

Abstract

The invention relates to new energy automobile self-bonding stator core induction heating equipment which comprises a rack and a plurality of stacking molds, the rack is annularly or linearly arranged, a walking guide rail is arranged on the rack, the arrangement direction of the walking guide rail is the same as that of the rack, and a walking trolley is installed on the walking guide rail; a plurality of tool installation positions are arranged on the portions, on the two sides of the walking guide rail, of the rack at intervals, stacked silicon steel sheets are placed in each stacking mold, and the stacking mold is placed in each tool installation position; the walking trolley is used for moving along the walking guide rail, induction heating coils are arranged on the two sides of the walking trolley, the walking trolley stops at the tool installation position after moving, and a lifting driving part used for driving the induction heating coils to ascend and descend so as to enable the induction heating coils to be connected to the stacking mold in a sleeving mode is arranged on the walking trolley. The device has the effect of improving the production efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of stator core processing equipment, and in particular, to an induction heating device for self-bonding stator cores of new energy vehicles. Background Art

[0002] The modern mass production methods for stacking and forming motor cores mainly include bolt connection, welding, riveting, and bonding. Among them, the bonding method is to assemble the silicon steel sheets coated with self-bonding coatings through surface fixing, making the stacking and forming process have the advantages of no pollution, high core fixing strength, low magnetic vibration noise, and high core efficiency.

[0003] The current conventional production method for self-bonding coating silicon steel sheets is to take out the whole core (which is actually loose sheets) punched by a punching machine, apply a pressure of 6 - 30 bar with an upper fixture, send it to a heating furnace for heating at 150 - 220 °C for 1 - 4 hours, take it out after cooling, and remove the overflow edge to obtain the finished core. Such process steps result in relatively low production efficiency, require frequent manual intervention, and cannot form a fast and continuous automatic operation, thus leading to high energy consumption and production operation costs. Moreover, the bonding strength, core thickness difference, and extrusion overflow edge phenomenon of silicon steel cores after curing treatment in different batches are different, and the production stability is poor. Therefore, in the prior art, some researchers have made relevant improvements around the stacking and pressing tooling in order to improve production efficiency, the curing quality, and stability of self-bonding coating cores. However, due to the unchanged curing and heat preservation time of the coated cores, the total process time for the core curing from heating up, heat preservation to cooling and taking out of the furnace is generally about 10 hours, which is still inefficient compared with other coated silicon steel products.

[0004] In the prior art, some researchers have also found that if the silicon steel sheet core with self-bonding coating is rapidly heated to the target temperature within a short time and the corresponding temperature distribution requirements are met, a good bonding and curing effect can also be obtained. For example, Chinese Patent No. 2018108850962 discloses an induction heating system and method for rapid curing of silicon steel self-bonding coating cores. By stacking silicon steel sheets in a stacking die and using an induction heating device to heat the silicon steel sheets in the stacking die, the curing of the self-bonding coating is achieved.

[0005] However, the above-mentioned induction heating system and method can only heat a single stacking die each time, resulting in low production efficiency, so there is still room for improvement. Summary of the Invention

[0006] In order to improve production efficiency, the present application provides an induction heating device for self-bonding stator cores of new energy vehicles.

[0007] The induction heating device for the self - adhering stator core of a new energy vehicle provided by this application adopts the following technical solutions: An induction heating device for the self - adhering stator core of a new energy vehicle, including a frame and a number of stacking molds. The frame is arranged in a circular or linear shape. A walking guide rail is arranged on the frame, and the arrangement direction of the walking guide rail is the same as that of the frame. A walking trolley is installed on the walking guide rail; On both sides of the walking guide rail on the frame, a number of tooling installation positions are arranged at intervals. Each stacking mold is used to place silicon steel sheets stacked layer by layer, and each of the tooling installation positions contains the stacking mold; The walking trolley is used to move along the walking guide rail. Induction heating coils are arranged on both sides of the walking trolley. After moving, the walking trolley will stop at the tooling installation position. An elevating drive part is arranged on the walking trolley to drive the induction heating coil to move up and down so as to sleeved the induction heating coil on the stacking mold.

[0008] Preferably, the walking trolley includes a vehicle frame and mounting shafts arranged at the four corners of the vehicle frame. Walking wheels are rotatably installed on the mounting shafts, and the walking wheels cooperate with the walking guide rail; A controller is arranged on the vehicle frame, and a heating power supply is arranged on the vehicle frame. The controller is electrically connected to the heating power supply. The heating power supply is connected to the induction heating coil through a cable. The elevating drive part is arranged at the end of the mounting shaft, and the induction heating coil is arranged on the elevating drive part; A walking drive part for driving the walking wheels to rotate is arranged on the vehicle frame, and the walking drive part is electrically connected to the controller.

[0009] Preferably, the walking drive part includes a servo motor fixedly arranged on the vehicle frame. A drive gear is installed on the output shaft of the servo motor. An internal gear ring is installed on the inner side of the walking wheel. The internal gear ring is coaxially arranged with the walking wheel. The drive gear meshes with the internal gear ring, and the servo motor is electrically connected to the controller.

[0010] Preferably, the elevating drive part includes an elevating bracket and an elevating electric cylinder arranged on the elevating bracket. The elevating electric cylinder is installed in the vertical direction. The elevating electric cylinder is electrically connected to the controller. An elevating mounting bracket is installed on the output rod of the elevating electric cylinder, and the induction heating coil is fixed on the elevating mounting bracket.

[0011] Preferably, a position sensor is arranged on the vehicle frame, and the position sensor is electrically connected to the controller.

[0012] Preferably, a conductive core wire is arranged above the walking guide rail on the frame, a conductive bracket is provided on the vehicle frame, a power supply end is provided on the conductive bracket, the power supply end contacts the conductive core wire, and the power supply end is electrically connected to the controller for providing electric energy.

[0013] Preferably, the stacking die includes a lower base, an upper base and a plurality of mounting rods. The plurality of mounting rods are arranged in the vertical direction. The lower ends of the mounting rods are fixed on the lower base. The plurality of mounting rods are spaced apart in the circumferential direction. The plurality of mounting rods enclose an installation space for laminating silicon steel sheets. An installation hole for the upper ends of the mounting rods to pass through is provided on the upper base, and a locking nut that abuts against the upper base is threadedly connected to the upper ends of the mounting rods.

[0014] Preferably, an installation cavity is arranged inside the frame, an inflatable airbag is arranged in the installation cavity, an air inlet pipe is arranged on the inflatable airbag, an air inlet one-way valve is installed on the air inlet pipe, an air inlet nozzle is provided on the frame, and the air inlet pipe is connected to the air inlet nozzle; An air outlet pipe is arranged on the inflatable airbag, an air outlet solenoid valve is installed on the air outlet pipe, the air outlet solenoid valve is controlled by the controller, and an air outlet flow channel communicating with each tooling installation position is arranged on the frame; A first flow channel is arranged on the lower base, a second flow channel is arranged axially inside the mounting rod, the first flow channel communicates with the second flow channel, a plurality of air outlet ports are arranged on the mounting rod facing the internal installation space, the plurality of air outlet ports are spaced apart in the axial direction of the mounting rod, and the air outlet ports communicate with the second flow channel; An inflation part cooperating with the air inlet nozzle is arranged on the lifting driving part.

[0015] Preferably, the inflation part includes an air pump and an inflation rod. The air pump is arranged on the vehicle frame, the air pump is electrically connected to the controller, an air duct is connected to the air pump, an air inflation flow channel is arranged inside the inflation rod, the lower end of the inflation rod cooperates with the air inlet nozzle, the air duct is connected to the inflation rod and communicates with the air inflation flow channel, and the upper end of the inflation rod is connected to the lifting driving part through a telescopic part.

[0016] Preferably, the telescopic part includes an upper mounting block and a lower mounting block. The lower mounting block is arranged at the upper end of the inflation rod, the upper mounting block is arranged on the lifting driving part, a telescopic rod is connected between the upper mounting block and the lower mounting block, and a elastic spring is arranged between the upper mounting block and the lower mounting block. The elastic spring is sleeved outside the telescopic rod.

[0017] In summary, the present application includes at least one of the following beneficial technical effects: In this application, silicon steel sheets are stacked in a stacking mold. A traveling trolley drives an induction heating coil to move. The induction heating coil can be lifted and lowered under the drive of a lifting drive unit, so that the induction heating coil heats the silicon steel sheets of the stacking mold one by one, realizing the rapid curing of the self-adhesive coating in the silicon steel sheets. This application can realize the simultaneous induction heating of the silicon steel sheets of multiple stacking molds, thus effectively improving the production efficiency. Description of the Drawings

[0018] Figure 1a It is a schematic layout diagram of the frame in a ring shape.

[0019] Figure 1b It is a schematic layout diagram of the frame in a straight line shape.

[0020] Figure 2 It is a schematic installation diagram of the traveling trolley on the frame.

[0021] Figure 3 It is a schematic structural diagram of the traveling trolley.

[0022] Figure 4 It is a system block diagram of the controller.

[0023] Figure 5 It is a schematic installation diagram of the inflatable airbag.

[0024] Figure 6 It is a schematic installation diagram of the inflation part.

[0025] Figure 7 It is a schematic structural diagram of the inflation part.

[0026] Description of the Reference Numerals: 1. Frame; 2. Stacking Mold; 201. Lower Base; 202. Upper Base; 203. Installation Rod; 204. Locking Nut; 3. Silicon Steel Sheet; 4. Traveling Guide Rail; 5. Traveling Trolley; 51. Frame; 52. Installation Shaft; 53. Traveling Wheel; 6. Induction Heating Coil; 7. Lifting Drive Unit; 71. Lifting Bracket; 72. Lifting Electric Cylinder; 73. Lifting Installation Bracket; 8. Traveling Drive Unit; 81. Servo Motor; 82. Driving Gear; 83. Internal Gear Ring; 9. Conductive Core Wire; 10. Conductive Bracket; 11. Power Supply Terminal; 12. Installation Cavity; 13. Inflatable Airbag; 14. Intake Pipe; 15. Intake Check Valve; 16. Intake Nozzle; 17. Exhaust Pipe; 18. Exhaust Solenoid Valve; 19. Exhaust Flow Channel; 20. First Flow Channel; 21. Second Flow Channel; 22. Exhaust Port; 23. Inflation Part; 231. Inflation Rod; 232. Air Duct; 24. Telescopic Part; 241. Upper Installation Block; 242. Lower Installation Block; 243. Telescopic Rod; 244. Elastic Spring. Detailed Description of the Embodiment

[0027] The following will further elaborate on this application Figure 1a - Figure 7 in detail with reference to the accompanying drawings.

[0028] An induction heating device for a self - adhesive stator core of a new - energy vehicle, referring to Figure 2 and Figure 3 as shown, includes a frame 1 and a number of stacking molds 2. The stacking mold 2 is used to place laminated silicon steel sheets 3. The surface of the silicon steel sheet 3 is coated with a self - adhesive coating. After the silicon steel sheets 3 are pressed by a laminator, they are placed in the stacking mold 2, and then the stacking mold 2 is placed on the frame 1, waiting for subsequent heating to achieve rapid curing.

[0029] In one embodiment, referring to Figure 1a as shown, the frame 1 is arranged in a ring shape, and the ring - shaped frame 1 is joined end - to - end to form a circle. In another embodiment, referring to Figure 1b as shown, the frame 1 is arranged in a straight line. The arrangement of the frame 1 can be set according to actual needs, and no specific limitation is made in this embodiment.

[0030] A walking guide rail 4 is arranged on the frame 1. The arrangement direction of the walking guide rail 4 is the same as that of the frame 1. The walking guide rail 4 is arranged above the frame 1. When the frame 1 is arranged in a ring shape, the walking guide rail 4 is arranged in a ring shape. When the frame 1 is arranged in a straight line, the walking guide rail 4 is arranged in a straight line. A number of tooling installation positions are arranged at intervals on both sides of the frame 1 along the walking guide rail 4, and each tooling installation position contains a stacking mold 2.

[0031] Referring to Figure 2 and Figure 3 as shown, a walking trolley 5 is installed on the walking guide rail 4. The walking trolley 5 is used to move along the walking guide rail 4. Induction heating coils 6 are arranged on both sides of the walking trolley 5. After the walking trolley 5 moves, it will stop at the tooling installation position. An elevating drive part 7 is arranged on the walking trolley 5 to drive the induction heating coil 6 to move up and down so as to sleeved the induction heating coil 6 on the stacking mold 2.

[0032] Specifically, two rows of walking guide rails 4 are arranged side by side. The walking trolley 5 adopts a four - wheel walking trolley 5. The walking trolley 5 includes a vehicle frame 51 and mounting shafts 52 arranged at the four corners of the vehicle frame 51. The mounting shafts 52 are arranged horizontally. A walking wheel 53 is rotatably installed on the mounting shaft 52. The walking wheel 53 is installed on the mounting shaft 52 through a bearing. The walking wheel 53 cooperates with the walking guide rail 4. By rotating the walking wheel 53, the walking trolley 5 can move on the walking guide rail 4.

[0033] Referring to Figure 3 and Figure 4As shown, a controller is provided on the vehicle frame 51, and a traveling drive unit 8 for driving the traveling wheels 53 to rotate is provided on the vehicle frame 51. The traveling drive unit 8 is electrically connected to the controller. In one embodiment, two traveling drive units 8 are provided, and the two traveling drive units 8 are used to drive the two traveling wheels 53 to rotate. The traveling drive unit 8 includes a servo motor 81 fixedly provided on the vehicle frame 51. A drive gear 82 is mounted on the output shaft of the servo motor 81. An internal gear ring 83 is mounted on the inner side surface of the traveling wheel 53. The internal gear ring 83 is coaxially arranged with the traveling wheel 53. The drive gear 82 meshes with the internal gear ring 83. The servo motor 81 is electrically connected to the controller, and the controller is used to control the opening and closing of the servo motor 81, thereby realizing the traveling control of the traveling trolley 5.

[0034] A heating power supply is provided on the vehicle frame 51. The controller is electrically connected to the heating power supply. The controller is used to control the opening and closing of the heating power supply. The heating power supply is connected to the induction heating coil 6 through a cable. The induction heating coil 6 uses an intermediate frequency of 6 - 20 Khz to inductively heat the silicon steel sheet 3. The lifting drive unit 7 is provided at the end of the mounting shaft 52, and the induction heating coil 6 is provided on the lifting drive unit 7. It should be noted that an infrared temperature measuring element is provided on the induction heating coil 6. The infrared temperature measuring element is electrically connected to the controller. The infrared temperature measuring element is used to monitor the temperature of the silicon steel sheet 3. Through the control of the controller, the temperature of the silicon steel sheet 3 can be kept constant at a predetermined temperature.

[0035] In one embodiment, referring to Figure 6 As shown, the lifting drive unit 7 includes a lifting bracket 71 and a lifting electric cylinder 72 provided on the lifting bracket 71. The lifting electric cylinder 72 is electrically connected to the controller. The lifting electric cylinder 72 is installed in the vertical direction, that is, the output rod of the lifting electric cylinder 72 extends and retracts in the vertical direction. A lifting mounting bracket 73 is mounted on the output rod of the lifting electric cylinder 72. The induction heating coil 6 is fixed on the lifting mounting bracket 73. In order to avoid the induction heating coil 6 affecting the lifting mounting bracket 73, the lifting mounting bracket 73 can be made of a non-metallic material.

[0036] Among them, a position sensor is provided on the vehicle frame 51. The position sensor is electrically connected to the controller. The position sensor is used to monitor the position of the traveling trolley 5, so as to realize that the traveling trolley 5 can accurately stop at the position of the tooling installation position. In one embodiment, the position sensor can adopt an optical encoder, and the optical encoder is provided on the servo motor 81, so as to realize the monitoring of the position of the traveling trolley 5. In another embodiment, the position sensor can adopt a proximity sensor. By setting a detection piece at the position of each station installation position, the proximity sensor contacts the detection piece, so as to realize the monitoring of the position of the traveling trolley 5. The position sensor only needs to be able to realize the monitoring of the position of the traveling trolley 5. For the specific implementation manner, this embodiment does not make a specific limitation.

[0037] When the traveling trolley 5 moves annularly along the frame 1, in order to achieve power supply, the frame 1 is provided with a conductive core wire 9 above the traveling guide rail 4. A conductive support 10 is provided on the vehicle frame 51, and a power supply terminal 11 is provided on the conductive support 10. The power supply terminal 11 contacts the conductive core wire 9, and the power supply terminal 11 is electrically connected to the controller to supply electrical energy, and the electrical energy supply of the above-mentioned equipment components can be provided through the conductive core wire 9.

[0038] Thus, by laminating the silicon steel sheets 3 coated with the self-adhesive coating in the stacking mold 2, arranging the stacking mold 2 in the station installation position in sequence, the controller controls the operation of the servo motor 81, the position sensor monitors the position of the traveling trolley 5, and the traveling trolley 5 will stop at the station installation position and align the induction heating coil 6 with the stacking mold 2. At this time, the controller controls the operation of the lifting electric cylinder 72, and the lifting electric cylinder 72 lowers the induction heating coil 6 to sleeve it outside the stacking mold 2. Then, the controller starts through the heating power supply, and the induction heating coil 6 heats the silicon steel sheets 3 in the stacking mold 2, so as to realize the rapid curing of the self-adhesive coating on the silicon steel sheets 3.

[0039] After the rapid curing of the self-adhesive coating of the first silicon steel sheet 3 is completed, the controller controls the operation of the lifting electric cylinder 72 to separate the induction heating coil 6 from the stacking mold 2, and the controller controls the operation of the servo motor 81 to move the traveling trolley 5 to the position of the next stacking mold 2, repeating the above actions, and sequentially realizing the rapid curing of the self-adhesive coating of the silicon steel sheets 3 in the stacking mold 2 on the frame 1 until the rapid curing of the silicon steel sheets 3 in all the stacking molds 2 on the frame 1 is completed.

[0040] The structure of the stacking mold 2 is described below. The material of the stacking mold 2 is a non-metallic material. Refer to Figure 5 As shown, the stacking mold 2 includes a lower base 201, an upper base 202 and a plurality of mounting rods 203. The plurality of mounting rods 203 are arranged in the vertical direction. The lower ends of the mounting rods 203 are fixed on the lower base 201. The plurality of mounting rods 203 are arranged at intervals in the circumferential direction. The plurality of mounting rods 203 enclose an installation space for laminating the silicon steel sheets 3. The upper base 202 is provided with mounting holes for the upper ends of the mounting rods 203 to pass through. Locking nuts 204 that abut against the upper base 202 are threadedly connected to the upper ends of the mounting rods 203. The laminated silicon steel sheets 3 are placed in the installation space, and the upper base 202 is locked by the locking nuts 204, and the upper base 202 presses on the silicon steel sheets 3, so as to realize the lamination of the silicon steel sheets 3 in the stacking mold 2.

[0041] After the induction heating coil 6 heats the silicon steel sheets 3, in order to improve the cooling speed of the silicon steel sheets 3.

[0042] Refer to Figure 5 and Figure 6As shown, in the present application, an installation cavity 12 is provided inside the frame 1. An inflatable airbag 13 is provided inside the installation cavity 12. An air inlet pipe 14 is provided on the inflatable airbag 13. An intake check valve 15 is installed on the air inlet pipe 14. An air inlet nozzle 16 is provided on the frame 1. The air inlet pipe 14 is connected to the air inlet nozzle 16.

[0043] An air outlet pipe 17 is provided on the inflatable airbag 13. The number of the air outlet pipes 17 is the same as the number of the mounting rods 203 in the stacked die 2. An air outlet solenoid valve 18 is installed on the air outlet pipe 17. The air outlet solenoid valve 18 is controlled by a controller, that is, a wireless transmitter is connected to the controller, and a wireless receiver is electrically connected to the air outlet solenoid valve 18. The wireless transmitter and the wireless receiver cooperate. The control instruction sent by the controller can be sent through the wireless transmitter and received by the wireless receiver, so as to realize the opening and closing control of the air outlet solenoid valve 18 by the controller.

[0044] Wherein, an air outlet flow channel 19 communicating with each tooling installation position is provided on the frame 1; a first flow channel 20 is provided on the lower base 201, a second flow channel 21 is axially provided inside the mounting rod 203, the first flow channel 20 communicates with the second flow channel 21, and a plurality of air outlet ports 22 are provided on the mounting rod 203 facing the internal installation space. The plurality of air outlet ports 22 are arranged at intervals along the axial direction of the mounting rod 203, and the air outlet ports 22 communicate with the second flow channel 21.

[0045] An inflation part 23 cooperating with the air inlet nozzle 16 is provided on the lifting drive part 7. In one embodiment, the inflation part 23 includes an air pump and an inflation rod 231. The air pump is provided on the vehicle frame 51. The air pump is electrically connected to the controller. An air duct 232 is connected to the air pump. An inflation flow channel is provided inside the inflation rod 231. The lower end of the inflation rod 231 cooperates with the air inlet nozzle 16. The air duct 232 is connected to the inflation rod 231 and communicates with the inflation flow channel. The upper end of the inflation rod 231 is connected to the lifting drive part 7 through a telescopic part 24.

[0046] Refer to Figure 6 and Figure 7 As shown, the telescopic part 24 includes an upper mounting block 241 and a lower mounting block 242. The lower mounting block 242 is provided at the upper end of the inflation rod 231. The upper mounting block 241 is provided on the lifting drive part 7. A telescopic rod 243 is connected between the upper mounting block 241 and the lower mounting block 242. A elastic spring 244 is provided between the upper mounting block 241 and the lower mounting block 242. The elastic spring 244 is sleeved outside the telescopic rod 243.

[0047] Thus, when the traveling trolley 5 stays at the station installation position, the controller will control the air inflation pump to start. After the lifting drive unit 7 drives the induction heating coil 6 to move downward, the induction heating coil 6 is sleeved outside the stacked mold 2. At this time, the lower end of the inflation rod 231 will press against the air inlet nozzle 16, and the air flow generated by the air inflation pump will inflate the inflation airbag 13 through the air inlet pipe 14, so that the inflation airbag 13 retains gas.

[0048] When the traveling trolley 5 moves to the next station installation position, the controller will control the air outlet solenoid valve 18 to open, and the gas in the inflation airbag 13 is released. The gas passes through the first flow channel 20 and the second flow channel 21 and is ejected from the air outlet 22. The gas can cool the silicon steel sheet 3 after heating, thereby improving the cooling efficiency of the silicon steel sheet 3, and facilitating the staff to recycle the silicon steel sheet 3 in the stacked mold 2.

[0049] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A self-bonding stator core induction heating device for new energy vehicles, characterized in that: The invention comprises a frame (1) and a plurality of stacked molds (2), wherein the frame (1) is arranged in a ring shape or in a straight line shape, a walking guide rail (4) is arranged on the frame (1), the arrangement direction of the walking guide rail (4) is the same as the arrangement direction of the frame (1), and a walking trolley (5) is installed on the walking guide rail (4); The frame (1) is provided with a plurality of tooling installation positions arranged at intervals on both sides of the walking guide rail (4); each stacked mold (2) is used to place stacked silicon steel sheets (3); and each of the tooling installation positions has the stacked mold (2) placed therein; The walking trolley (5) is used to move along the walking guide rail (4). Induction heating coils (6) are arranged on both sides of the walking trolley (5). After moving, the walking trolley (5) will stay at the tooling installation position. The walking trolley (5) is provided with a lifting drive unit (7) for driving the induction heating coil (6) to move up and down so as to sleeve the induction heating coil (6) on the stacking mold (2).

2. The self-bonding stator core induction heating device for new energy vehicles according to claim 1 is characterized in that: The walking trolley (5) comprises a frame (51) and mounting shafts (52) arranged at four corners of the frame (51), and walking wheels (53) are rotatably mounted on the mounting shafts (52), and the walking wheels (53) cooperate with the walking guide rails (4); The frame (51) is provided with a controller, the frame (51) is provided with a heating power supply, the controller is electrically connected to the heating power supply, the heating power supply is connected to the induction heating coil (6) through a cable, the lifting drive unit (7) is provided at the end of the mounting shaft (52), and the induction heating coil (6) is provided on the lifting drive unit (7); The vehicle frame (51) is provided with a travel drive unit (8) for driving the travel wheel (53) to rotate, and the travel drive unit (8) is electrically connected to the controller.

3. The self-bonding stator core induction heating device for new energy vehicles according to claim 2 is characterized in that: The travel drive unit (8) comprises a servo motor (81) fixedly arranged on the frame (51); a driving gear (82) is mounted on the output shaft of the servo motor (81); an inner gear ring (83) is mounted on the inner side surface of the travel wheel (53); the inner gear ring (83) is coaxially arranged with the travel wheel (53); the driving gear (82) is meshed with the inner gear ring (83); and the servo motor (81) is electrically connected to the controller.

4. The self-bonding stator core induction heating device for new energy vehicles according to claim 2 is characterized in that: The lifting drive unit (7) comprises a lifting bracket (71) and a lifting electric cylinder (72) arranged on the lifting bracket (71); the lifting electric cylinder (72) is installed in a vertical direction; the lifting electric cylinder (72) is electrically connected to the controller; a lifting mounting bracket (73) is installed on the output rod of the lifting electric cylinder (72); and the induction heating coil (6) is fixed on the lifting mounting bracket (73).

5. The self-bonding stator core induction heating device for new energy vehicles according to claim 2 is characterized in that: The frame (51) is provided with a position sensor, and the position sensor is electrically connected to the controller.

6. The self-bonding stator core induction heating device for new energy vehicles according to claim 2 is characterized in that: The frame (1) is provided with a conductive core wire (9) above the walking guide rail (4); a conductive bracket (10) is provided on the frame (51); a power supply end (11) is provided on the conductive bracket (10); the power supply end (11) is in contact with the conductive core wire (9); and the power supply end (11) is electrically connected to the controller for providing electrical energy.

7. The self-bonding stator core induction heating device for new energy vehicles according to claim 2 is characterized in that: The stacking mold (2) comprises a lower base (201), an upper base (202) and a plurality of mounting rods (203); the plurality of mounting rods (203) are arranged in a vertical direction; the lower ends of the mounting rods (203) are fixed to the lower base (201); the plurality of mounting rods (203) are arranged at intervals in a circumferential direction; the plurality of mounting rods (203) enclose an installation space for stacking silicon steel sheets (3); the upper base (202) is provided with a mounting hole for the upper ends of the mounting rods (203) to pass through; the upper ends of the mounting rods (203) are threadedly connected to locking nuts (204) that are tightly pressed against the upper base (202).

8. The self-bonding stator core induction heating device for new energy vehicles according to claim 7 is characterized in that: The frame (1) is provided with a mounting cavity (12), an inflatable airbag (13) is provided in the mounting cavity (12), an air intake pipe (14) is provided on the inflatable airbag (13), an air intake check valve (15) is installed on the air intake pipe (14), an air intake nozzle (16) is provided on the frame (1), and the air intake pipe (14) is connected to the air intake nozzle (16); The inflatable airbag (13) is provided with an air outlet pipe (17), an air outlet solenoid valve (18) is installed on the air outlet pipe (17), the air outlet solenoid valve (18) is controlled by the controller, and the frame (1) is provided with an air outlet passage (19) connected to each of the tooling installation positions; The lower base (201) is provided with a first flow channel (20), the installation rod (203) is provided with a second flow channel (21) along the axial direction, the first flow channel (20) is communicated with the second flow channel (21), the installation rod (203) is provided with a plurality of air outlets (22) facing the internal installation space, the plurality of air outlets (22) are arranged at intervals along the axial direction of the installation rod (203), and the air outlets (22) are communicated with the second flow channel (21); The lifting drive unit (7) is provided with an air charging unit (23) that cooperates with the air inlet nozzle (16).

9. The self-bonding stator core induction heating device for new energy vehicles according to claim 8 is characterized in that: The inflation part (23) comprises an inflation pump and an inflation rod (231). The inflation pump is arranged on the vehicle frame (51). The inflation pump is electrically connected to the controller. The inflation pump is connected to an air guide tube (232). An inflation flow channel is arranged in the inflation rod (231). The lower end of the inflation rod (231) cooperates with the air inlet nozzle (16). The air guide tube (232) is connected to the inflation rod (231) and communicates with the inflation flow channel. The upper end of the inflation rod (231) is connected to the lifting drive part (7) through the telescopic part (24).

10. The self-bonding stator core induction heating device for new energy vehicles according to claim 9, characterized in that: The telescopic part (24) comprises an upper mounting block (241) and a lower mounting block (242); the lower mounting block (242) is arranged at the upper end of the inflatable rod (231); the upper mounting block (241) is arranged on the lifting drive part (7); a telescopic rod (243) is connected between the upper mounting block (241) and the lower mounting block (242); an elastic spring (244) is arranged between the upper mounting block (241) and the lower mounting block (242); and the elastic spring (244) is sleeved outside the telescopic rod (243).

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