An automatic shaft fixing device for new energy stator core

Abstract

The present application relates to the technical field of new energy vehicle parts processing, and specifically discloses an automated shaft fixing device for new energy stator core, including a frame, a first feeding mechanism, a second feeding mechanism, a pressing mechanism and a pushing mechanism, the frame has a pressing point, the first feeding mechanism is arranged on the frame for moving the shaft in a vertical state to the pressing point, the second feeding mechanism is arranged on the frame for moving the stator core in a vertical state to the pressing point, when the shaft and the stator core are moved to the pressing point, the shaft is located above the stator core and aligned with the central axis of the stator core, the pressing mechanism is arranged on the frame for fixing the shaft into the stator core, and the pushing mechanism is arranged on the frame for pushing the stator core after the press-fitting operation is completed away from the pressing point. The present application has the effect of improving the installation accuracy, production efficiency and yield rate of the stator core.

Description

Technical Field

[0001] The present application relates to the technical field of new energy vehicle parts processing, and in particular to an automatic shaft fixing device for a new energy stator core. Background Art

[0002] In new energy vehicles, the motor is one of the core power devices. As an important part of the motor, the stator core has the characteristics of high efficiency and low loss, which helps to reduce the energy consumption of new energy vehicles and conforms to the development trend of environmental protection and energy saving of new energy vehicles. The stable structure of the stator core provides stable support for the motor, reduces the vibration and noise of the motor during operation, reduces the possibility of failure, and improves the reliability and durability of new energy vehicles.

[0003] At present, after the stator core is stamped and stacked, the shaft needs to be inserted and fixed on the central axis of the stator core. The conventional installation method of the shaft is generally to use a press-fitting device for press-fitting, and the stator core stacking needs to be manually placed on the mounting table of the press-fitting device. The press-fitting process is relatively direct, with low requirements for equipment and technology, and is easy to implement. However, the direct press-fitting operation needs to ensure the dimensional accuracy of the stator core and the shaft, otherwise it may cause the press-fitting to be loose or the parts to be damaged, resulting in low precision and low yield of the prepared product. This problem needs to be improved urgently. Summary of the invention

[0004] In order to improve the installation accuracy, production efficiency and yield rate of the stator core, the present application provides an automated shaft fixing device for a new energy stator core.

[0005] The present application provides an automatic shaft fixing device for a new energy stator core, which adopts the following technical solution:

[0006] An automatic shaft fixing device for a new energy stator core, comprising:

[0007] A frame, wherein the frame has a material pressing point;

[0008] A first feeding mechanism, which is disposed on the frame and is used to move the rotating shaft in a vertical state to the pressing point;

[0009] A second feeding mechanism, which is arranged on the frame and is used to move the stator core in a vertical state to the pressing point;

[0010] A material pressing mechanism, when the rotating shaft and the stator core are moved to the material pressing point, the rotating shaft is located above the stator core and aligned with the central axis of the stator core, and the material pressing mechanism is arranged on the frame and is used to fix the rotating shaft into the stator core;

[0011] A pushing mechanism is arranged on the frame and is used to push the stator core after the press-fitting operation is completed away from the pressing point.

[0012] By adopting the above technical scheme, the frame supports the first feeding mechanism, the second feeding mechanism, the pressing mechanism and the pushing mechanism. When the rotating shaft needs to be installed on the central axis of the stator core, the first feeding mechanism moves the rotating shaft to the pressing point in a vertical state. At the same time, the second feeding mechanism moves the stator core to the pressing point in a vertical state. At this time, the rotating shaft is aligned with the central axis of the stator core. Then the pressing mechanism drives the rotating shaft to move in the direction close to the stator core so that the rotating shaft is fixedly inserted into the stator core. Finally, the pushing mechanism pushes the stator core that has been pressed and installed away from the pressing point for unloading operation, so as to facilitate the press-fitting operation of the next group of stator cores and the rotating shaft. The press-fitting operation of the stator core and the rotating shaft has a high degree of automation and high press-fitting accuracy. The loading operation of the stator core and the loading operation of the rotating shaft do not interfere with each other and can be performed simultaneously, which is beneficial to improving the installation accuracy, production efficiency and yield rate of the stator core.

[0013] Preferably, the first feeding mechanism includes a first blanking component and a first transfer component, the first blanking component is arranged on the frame, the first blanking component has a first blanking point, the first blanking component is used to vertically drop the rotating shaft to the first blanking point one by one, and the first transfer component is arranged on the frame to transfer the rotating shaft dropped to the first blanking point to the pressing point.

[0014] By adopting the above technical solution, the first blanking component drops the rotating shaft in a vertical state to the first blanking point one by one, and then the first transfer component transfers the rotating shaft that has dropped to the first blanking point to the pressing point to complete the loading operation of the rotating shaft in a vertical state. The loading operation of the rotating shaft has a high degree of automation, which is conducive to improving production efficiency.

[0015] Preferably, the second feeding mechanism includes a second blanking assembly and a second transfer assembly, the second blanking assembly is arranged on the frame, the second blanking assembly has a second blanking point, the second blanking assembly is used to vertically drop the stator cores one by one to the second blanking point, and the second transfer assembly is arranged on the frame to transfer the stator cores dropped to the second blanking point to the pressing point.

[0016] By adopting the above technical scheme, the second blanking assembly drops the stator cores one by one in a vertical state to the second blanking point, and then the second transfer assembly transfers the stator cores dropped to the second blanking point to the pressing point to complete the loading operation of the stator core in a vertical state, and makes the rotating shaft transferred to the pressing point align with the central axis position of the stator core in the vertical direction to facilitate the subsequent pressing operation of the rotating shaft and the stator core. The loading operation of the stator core has a high degree of automation and high loading accuracy, which is conducive to improving production efficiency and installation accuracy.

[0017] Preferably, the second blanking assembly includes a limit box and a plurality of limit rods, the limit box cover is arranged at the second blanking point, the upper surface of the limit box is provided with a through hole for the stator core to fall downward, the plurality of limit rods are vertically fixed on the upper surface of the limit box, and the plurality of limit rods are located on the peripheral side of the through hole.

[0018] By adopting the above technical solution, a plurality of limit rods are vertically fixed on the upper surface of the limit box, and a plurality of limit rods are located on the peripheral side of the through hole to form an accommodating space for accommodating multiple stator cores stacked up and down, and the lowest stator core falls through the through hole to the second blanking point in the limit box, so that the second transfer component only transfers the stator core that falls to the second blanking point to the pressing point each time, thereby realizing the one-by-one loading operation of the stator core, which is convenient and quick.

[0019] Preferably, the second transfer assembly includes a pushing arc plate, a limiting arc plate and a second driving member, the limiting arc plate is fixedly arranged on the frame, and the limiting arc plate is located on the side of the pressing point, the second driving member is arranged on the frame to drive the pushing arc plate to move toward or away from the limiting arc plate, the moving path of the pushing arc plate passes through the second blanking point, when the pushing arc plate moves to a position close to the limiting arc plate, the pushing arc plate and the limiting arc plate are arranged to form a circle for fixing the stator core.

[0020] By adopting the above technical solution, when the lowermost stator core falls to the second blanking point, the second driving member drives the pushing arc plate to move in the direction close to the limiting arc plate, and the pushing arc plate pushes the stator core located at the second blanking point to the pressing point during the movement. When the stator core is pushed to the pressing point, the pushing arc plate is pressed against the limiting arc plate to clamp and fix the stator core at the pressing point, so as to facilitate the subsequent pressing mechanism to insert the rotating shaft into the central axis position of the stator core.

[0021] Preferably, the pressing mechanism comprises a clamp and a third driving member, the clamp is in a vertical state for clamping a fixed rotating shaft, and the third driving member is arranged on the frame for driving the clamp to move vertically up and down at the pressing point.

[0022] By adopting the above technical solution, when the rotating shaft is transferred to the pressing point through the first transfer component, the third driving member drives the clamp to move vertically up and down at the pressing point to receive and clamp the rotating shaft at the pressing point, and the second transfer component returns to the initial position to prepare for the next rotating shaft transfer operation. When the stator core is transferred to the pressing point through the second transfer component, the third driving member drives the clamp to move vertically downward to fix the rotating shaft into the center axis position of the stator core, thereby completing the press-fitting operation of the stator core and the rotating shaft.

[0023] Preferably, the pushing mechanism includes a lifting assembly, a first pushing assembly and a second pushing assembly, the lifting assembly is arranged on the frame for supporting and lifting the stator core located at the pressing point, the first pushing assembly is arranged on the frame for pushing away the stator core after the pressing operation, and the second pushing assembly is arranged on the frame for unloading the stator core pushed away from the pressing point.

[0024] By adopting the above technical scheme, during the press-fitting operation of the stator core and the rotating shaft, the jacking assembly supports the stator core located at the pressing point to facilitate the press-fitting operation of the stator core and the rotating shaft. After the press-fitting operation of the stator core and the rotating shaft is completed, the jacking assembly lifts the stator core, and then the first pushing assembly pushes the stator core away from the pressing point, and the second pushing assembly unloads the stator core pushed away from the pressing point to complete the entire press-fitting process of the stator core and the rotating shaft. The degree of automation is high and the production rhythm is compact, which is conducive to improving production efficiency.

[0025] Preferably, the jacking assembly includes a jacking cylinder and a jacking plate, the jacking plate is located directly below the material pressing point, and the jacking cylinder is arranged on the frame to drive the jacking plate to move vertically up and down.

[0026] By adopting the above technical scheme, when the stator core is transferred to the pressing point, the pushing arc plate and the limiting arc plate clamp and fix the stator core, and at the same time, the lifting plate supports the stator core, which is beneficial to improve the stability of the stator core and the rotating shaft during the press-fitting operation. When the press-fitting operation of the stator core and the rotating shaft is completed, the lifting cylinder drives the lifting plate to move upward to facilitate the subsequent unloading operation of the stator core by the first pushing assembly and the second pushing assembly.

[0027] Preferably, it also includes a twisting mechanism, which is arranged on the frame and is used to perform oblique twisting operation on the laminations of the stator core after the pressing operation.

[0028] Due to the complex structure of the motor, the magnetic field generated by electricity is not smooth and flat, but full of deformities. In addition, due to the mutual influence between the stator and the rotor, the magnetic field will also be distorted. The distorted magnetic field will produce high-order harmonic electromotive force, which will have a huge impact on the torque. Among them, the grooves at the position of the stator core laminations will also produce magnetic field distortion, which is called the first-order tooth harmonic magnetic field. The twisting mechanism can perform oblique twisting operation on the stator core laminations to weaken the influence of tooth harmonics, which is beneficial to improve the performance of the motor.

[0029] Preferably, the torsion plate mechanism includes a torsion plate, a linear drive module and a rotation drive module. The linear drive module is arranged on the frame to drive the rotation drive module and the torsion plate to reciprocate toward or away from the pressing point. The rotation drive module is arranged on the linear drive module to drive the torsion plate to rotate. When the torsion plate moves toward the direction close to the pressing point, the torsion plate is inserted into the groove of the stator core lamination, and the limiting arc plate is provided with a avoidance groove for avoiding the torsion plate.

[0030] By adopting the above technical solution, the linear drive module drives the rotary drive module and the torsion plate to move in the direction close to the pressing point, so that the torsion plate passes through the avoidance groove and is inserted into the groove of the stator core lamination. Then the rotary drive module drives the torsion plate to rotate, so that the torsion plate drives the stator core laminations to move, thereby causing inclined grooves to appear in the stator core. The inclined grooves are beneficial to improving the performance of the motor.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. By setting a first feeding mechanism, a second feeding mechanism, a pressing mechanism and a pushing mechanism, when the rotating shaft needs to be installed on the central axis of the stator core, the first feeding mechanism moves the rotating shaft to the pressing point in a vertical state, and at the same time, the second feeding mechanism moves the stator core to the pressing point in a vertical state. At this time, the rotating shaft is aligned with the central axis of the stator core, and then the pressing mechanism drives the rotating shaft to move in the direction close to the stator core so that the rotating shaft is fixedly inserted into the stator core. Finally, the pushing mechanism pushes the stator core that has been pressed and installed away from the pressing point for unloading operation, so as to facilitate the press-fitting operation of the next group of stator cores and rotating shafts. The press-fitting operation of the stator core and the rotating shaft has a high degree of automation and high press-fitting accuracy, and the stator core loading operation and the rotating shaft loading operation do not interfere with each other and can be carried out simultaneously, which is beneficial to improving the installation accuracy, production efficiency and yield rate of the stator core.

[0033] 2. By setting a limit box and a plurality of limit rods, the plurality of limit rods are vertically fixed on the upper surface of the limit box, and the plurality of limit rods are located on the peripheral side of the through hole, so as to form an accommodating space for accommodating multiple stator cores stacked up and down, and the lowest stator core falls through the through hole to the second blanking point in the limit box, so that the second transfer component only transfers the stator core that falls to the second blanking point to the pressing point each time, thereby realizing the one-by-one loading operation of the stator core, which is convenient and quick.

[0034] 3. By setting a pushing arc plate, a limiting arc plate and a second driving member, when the lowermost stator core falls to the second blanking point, the second driving member drives the pushing arc plate to move in the direction close to the limiting arc plate, and the pushing arc plate pushes the stator core located at the second blanking point to the pressing point during the movement. When the stator core is pushed to the pressing point, the pushing arc plate is pressed against the limiting arc plate to clamp and fix the stator core at the pressing point, so as to facilitate the subsequent pressing mechanism to insert the rotating shaft into the center axis position of the stator core. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the automatic rotating shaft fixing device of the new energy stator core in the embodiment of the present application.

[0036] Figure 2 It is a structural schematic diagram from another perspective of the automatic rotating shaft fixing device of the new energy stator core in the embodiment of the present application.

[0037] Figure 3 yes Figure 1 Enlarged view of part A in the middle.

[0038] Figure 4 It is a schematic diagram of the structure of the internal lifting assembly of the frame in the embodiment of the present application.

[0039] Description of reference numerals:

[0040] 1. Frame; 2. First feeding mechanism; 21. First blanking assembly; 211. Blanking box; 212. Blanking tube; 22. First transfer assembly; 221. Clamp; 222. Support plate; 223. Horizontal cylinder; 224. Vertical cylinder; 3. Second feeding mechanism; 31. Second blanking assembly; 311. Limit box; 312. Limit rod; 32. Second transfer assembly; 321. Pushing arc plate; 322. Limiting arc plate; 323. Driving cylinder; 4. Pressing mechanism; 41. Clamp; 42 , oil cylinder; 5, pushing mechanism; 51, lifting assembly; 511, lifting cylinder; 512, lifting plate; 52, first pushing assembly; 521, first pushing cylinder; 522, first pushing plate; 523, unloading channel; 53, second pushing assembly; 531, second pushing cylinder; 532, second pushing plate; 6, pressing point; 7, first blanking point; 8, second blanking point; 9, twisting mechanism; 91, twisting plate; 92, linear drive module; 93, rotary drive module; 10, avoidance groove. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-4 This application is described in further detail.

[0042] The present application embodiment discloses an automatic shaft fixing device for a new energy stator core, referring to Figure 1 , including a frame 1, the frame 1 has a pressing point 6 for press-fitting a stator core and a rotating shaft, and also includes a first feeding mechanism 2, a second feeding mechanism 3, a pressing mechanism 4 and a pushing mechanism 5. The first feeding mechanism 2 is arranged on the frame 1 for moving the rotating shaft in a vertical state to the pressing point 6, and the second feeding mechanism 3 is arranged on the frame 1 for moving the stator core in a vertical state to the pressing point 6. When the rotating shaft and the stator core are moved to the pressing point 6, the rotating shaft is located above the stator core and aligned with the central axis of the stator core. The pressing mechanism 4 is arranged on the frame 1 for fixing the rotating shaft into the stator core, and the pushing mechanism 5 is arranged on the frame 1 for pushing the stator core after the press-fitting operation is completed away from the pressing point 6 for unloading operation. The entire press-fitting process of the stator core and the shaft has a high degree of automation and high press-fitting accuracy, and the loading operation of the stator core and the shaft can be performed simultaneously without interfering with each other, which is beneficial to improving the installation accuracy, production efficiency and yield rate of the stator core.

[0043] Reference Figure 1The first feeding mechanism 2 includes a first blanking assembly 21 and a first transfer assembly 22. The first blanking assembly 21 is arranged on the frame 1. The first blanking assembly 21 has a first blanking point 7. The first blanking assembly 21 is used to vertically drop the rotating shafts to the first blanking point 7 one by one. The first transfer assembly 22 is arranged on the frame 1 to transfer the rotating shafts dropped to the first blanking point 7 to the pressing point 6. Specifically, the first blanking assembly 21 includes a blanking box 211 and a blanking pipe 212. The blanking pipe 212 is vertically arranged, and the blanking pipe 212 is connected to the bottom of the blanking box 211. In this embodiment, the blanking box 211 adopts the vibration conveying principle of the vibrating disk to drop the rotating shafts in the blanking box 211 into the blanking pipe 212 one by one for conveying, and the first blanking point 7 is located directly below the blanking pipe 212.

[0044] Reference Figure 1 The first transfer assembly 22 includes a chuck 221, a support plate 222, a horizontal cylinder 223 and a vertical cylinder 224. The vertical cylinder 224 is vertically fixed on the frame 1, and the piston rod of the vertical cylinder 224 is set upward. The support plate 222 is horizontally fixed on the end of the piston rod of the vertical cylinder 224. The horizontal cylinder 223 is horizontally fixed on the upper plate surface of the support plate 222. The chuck 221 is fixed on the end of the piston rod of the horizontal cylinder 223, and the chuck 221 faces the pressing point 6. At the same time, the moving path of the chuck 221 passes through the first blanking point 7. The vertical cylinder 224 drives the chuck 221 in the vertical direction, and the horizontal cylinder 223 drives the chuck 221 in the horizontal direction, so that the chuck 221 clamps the rotating shaft from the first blanking point 7 to the pressing point 6.

[0045] Reference Figure 1 The second feeding mechanism 3 includes a second blanking assembly 31 and a second transfer assembly 32. The second blanking assembly 31 is arranged on the frame 1, and the second blanking assembly 31 has a second blanking point 8. The second blanking assembly 31 is used to vertically drop the stator cores one by one to the second blanking point 8. The second transfer assembly 32 is arranged on the frame 1 to transfer the stator cores dropped to the second blanking point 8 to the pressing point 6. Specifically, the second blanking assembly 31 includes a limit box 311 and a plurality of limit rods 312. The limit box 311 is covered at the second blanking point 8. The upper surface of the limit box 311 is provided with a through hole for the stator core to fall vertically downward. The plurality of limit rods 312 are vertically fixedly arranged on the upper surface of the limit box 311, and the plurality of limit rods 312 are located around the through hole. In this embodiment, the number of the limiting rods 312 is set to three, and the three limiting rods 312 are arranged at intervals on the same side of the through hole, which not only limits the stacked stator cores, but also facilitates the staff to place the stator cores.

[0046] Reference Figure 1 and Figure 2The second transfer assembly 32 includes a pusher arc plate 321, a limit arc plate 322 and a second driving member. The limit arc plate 322 is fixedly arranged on the frame 1, and the limit arc plate 322 is located on the side of the pressing point 6. The second driving member is arranged on the frame 1 to drive the pusher arc plate 321 to move toward or away from the limit arc plate 322. It should be noted that the moving path of the pusher arc plate 321 passes through the second blanking point 8, so that the pusher arc plate 321 can push the stator core located at the second blanking point 8 to the pressing point 6. When the pusher arc plate 321 moves to a position close to the limit arc plate 322, the pusher arc plate 321 and the limit arc plate 322 are arranged to form a circle for fixing the stator core, thereby fixing the stator core at the pressing point 6. In this embodiment, the second driving member is configured as a driving cylinder 323 , which is horizontally fixed on the frame 1 , and the material pushing arc plate 321 is fixed on the end of the piston rod of the driving cylinder 323 .

[0047] Reference Figure 1 The pressing mechanism 4 includes a clamp 41 and a third driving member. The clamp 41 is in a vertical state for clamping and fixing the rotating shaft. The third driving member is arranged on the frame 1 for driving the clamp 41 to move vertically up and down at the pressing point 6. In this embodiment, the third driving member is set as an oil cylinder 42, and the oil cylinder 42 drives the clamp 41 in the vertical direction. When the rotating shaft is transferred to the pressing point 6, the vertical up and down driving operation of the oil cylinder 42 and the clamping operation of the clamp 41 are performed to make the rotating shaft stay at the pressing point 6, and the first feeding mechanism 2 can return to perform the feeding operation of the next rotating shaft. When the stator core is transferred and fixed at the pressing point 6, the vertical up and down driving operation of the oil cylinder 42 and the clamping operation of the clamp 41 are performed again to make the rotating shaft inserted into the central axis position of the stator core, thereby completing the press-fitting operation of the stator core and the rotating shaft.

[0048] Reference Figure 1 The automatic shaft fixing device also includes a twisting mechanism 9, which is arranged on the frame 1 and is used to perform an oblique twisting operation on the laminations of the stator core after the pressing operation, so that the grooves of the stator core laminations are arranged in an oblique groove. It should be noted that due to the complex structure of the motor, the magnetic field generated by electricity is not smooth and flat, but full of deformities, and due to the mutual influence between the stator and the rotor, the magnetic field distortion will also be caused. The distorted magnetic field will generate high-order harmonic electromotive force, which has a huge impact on the torque. Among them, the grooves at the position of the stator core laminations will also generate magnetic field distortion, which is called the first-order tooth harmonic magnetic field. The twisting mechanism 9 performs an oblique twisting operation on the stator core laminations to weaken the influence of tooth harmonics, which is beneficial to improve the performance of the motor.

[0049] Reference Figure 1 and Figure 3The twisting mechanism 9 includes a twisting plate 91, a linear drive module 92 and a rotary drive module 93. The linear drive module 92 is arranged on the frame 1 to drive the rotary drive module 93 and the twisting plate 91 to reciprocate in the direction close to or away from the pressing point 6. The rotary drive module 93 is arranged on the linear drive module 92 to drive the twisting plate 91 to rotate. When the twisting operation is required, the linear drive module 92 drives the twisting plate 91 to move in the direction close to the pressing point 6, so that the twisting plate 91 is inserted into the groove of the stator core lamination. It should be noted that the limiting arc plate 322 is vertically provided with a avoiding groove 10 for avoiding the twisting plate 91, and then the rotary drive module 93 drives the twisting plate 91 to rotate a certain angle so that the groove of the stator core lamination is in the shape of an inclined groove. In this embodiment, the linear drive module 92 is driven by a cylinder, and the rotary drive module 93 is driven by a motor, which will not be described in detail here.

[0050] Reference Figure 1 When the press-fitting operation and the twisting operation of the stator core and the rotating shaft are completed, the pushing mechanism 5 performs the unloading operation on the stator core. Figure 2 and Figure 4 The pushing mechanism 5 includes a lifting assembly 51, a first pushing assembly 52 and a second pushing assembly 53. The lifting assembly 51 is arranged on the frame 1 to support and lift the stator core located at the pressing point 6. The first pushing assembly 52 is arranged on the frame 1 to push the stator core away from the pressing point 6. The second pushing assembly 53 is arranged on the frame 1 to unload the stator core pushed away from the pressing point 6.

[0051] Reference Figure 4 The lifting assembly 51 includes a lifting cylinder 511 and a lifting plate 512. The lifting plate 512 is located directly below the pressing point 6. The lifting cylinder 511 is vertically fixed on the frame 1 to drive the lifting plate 512 to move vertically up and down. When the stator core and the rotating shaft are pressed, the lifting cylinder 511 lifts the lifting plate 512 to a position abutting against the lower surface of the stator core, so that the lifting plate 512 supports the stator core, which is beneficial to improve the stability of the stator core and the rotating shaft during the press-fitting operation. When the press-fitting operation and the twisting operation are completed, the lifting cylinder 511 drives the lifting plate 512 to move vertically upward to facilitate the subsequent first pushing assembly 52 and the second pushing assembly 53 to unload the stator core.

[0052] Reference Figure 2The first push assembly 52 includes a first push cylinder 521, a first push plate 522 and a material discharge channel 523. The first push cylinder 521 is horizontally fixed on the frame 1, the first push plate 522 is fixedly arranged at the end of the piston rod of the first push cylinder 521, and the first push plate 522 is located on the side of the stator core to be lifted, and the material discharge channel 523 is fixedly arranged on the frame 1 and located on the side of the pressing point 6. When the stator core is lifted, the piston rod of the first push cylinder 521 is stretched to push the stator core from the pressing point 6 to the material discharge channel 523 through the first push plate 522.

[0053] Reference Figure 2 The second pushing assembly 53 includes a second pushing cylinder 531 and a second pushing plate 532. The second pushing cylinder 531 is horizontally fixed at one end of the material discharge channel 523, and the second pushing plate 532 is fixed at the end of the piston rod of the second pushing cylinder 531. When the stator core is pushed into the material discharge channel 523, the piston rod of the second pushing cylinder 531 is stretched to push the stator core through the second pushing plate 532 to perform a material discharge operation, and the next stator core is pushed into the material discharge channel 523 for avoidance.

[0054] The implementation principle of the automatic shaft fixing device for the stator core of the new energy source in the embodiment of the present application is as follows: when the stator core and the shaft need to be assembled, the shafts in the blanking box 211 are dropped to the first blanking point 7 one by one through the blanking tube 212, and then the horizontal cylinder 223 and the vertical cylinder 224 move the shafts dropped to the first blanking point 7 to the pressing point 6 through the chuck 221, and the oil cylinder 42 drives the chuck 41 to move vertically up and down to clamp the shaft at the blanking point, while the horizontal cylinder 223 and the vertical cylinder 224 drive the chuck 221 to move vertically up and down to clamp the shaft at the blanking point. 221 returns to the first blanking point 7 to transfer the next rotating shaft. At the same time, the stator core stacked at the bottom in the limit box 311 and the limit rod 312 falls to the second blanking point 8. The driving cylinder 323 pushes the stator core at the second blanking point 8 to the pressing point 6 through the pushing arc plate 321, and the pushing arc plate 321 and the limiting arc plate 322 clamp and fix the stator core. Then the oil cylinder 42 drives the clamp 41 to move vertically up and down to insert the rotating shaft at the pressing point 6 into the stator core at the pressing point 6. The stator core and the rotating shaft are pressed together at the central axis to complete the press-fitting operation of the stator core and the rotating shaft. When the press-fitting operation is completed, the linear drive module 92 drives the twisting plate 91 to move in the direction close to the pressing point 6, so that the twisting plate 91 is inserted into the groove of the stator core lamination, and then the rotary drive module 93 drives the twisting plate 91 to rotate a certain angle, so that the groove of the stator core lamination is in the shape of an inclined groove. Finally, the lifting cylinder 511 lifts the stator core upward through the lifting plate 512, and then the stator core is lifted up by the first pushing operation of the first pushing cylinder 521 and the first pushing plate 522. The sub-core is pushed into the unloading channel 523, and the second pushing cylinder 531 and the second pushing plate 532 push the stator core entering the unloading channel 523 to perform unloading operations, so as to push the next stator core into the unloading channel 523 for avoidance. During the entire installation process of the stator core and the rotating shaft, the press-fitting operation of the stator core and the rotating shaft has a high degree of automation and high press-fitting accuracy, and the loading operation of the stator core and the loading operation of the rotating shaft do not interfere with each other and can be performed simultaneously, which is beneficial to improving the installation accuracy, production efficiency and yield rate of the stator core.

[0055] 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. An automatic shaft fixing device for a new energy stator core, characterized in that: include: A frame (1), wherein the frame (1) has a material pressing point (6); A first feeding mechanism (2), the first feeding mechanism (2) being arranged on the frame (1) and used for moving the rotating shaft in a vertical state to the pressing point (6); A second feeding mechanism (3), the second feeding mechanism (3) being arranged on the frame (1) and used for moving the stator core in a vertical state to the pressing point (6); A material pressing mechanism (4), when the rotating shaft and the stator core are moved to the material pressing point (6), the rotating shaft is located above the stator core and is aligned with the central axis of the stator core, and the material pressing mechanism (4) is arranged on the frame (1) and is used to fix the rotating shaft into the stator core; A material pushing mechanism (5), the material pushing mechanism (5) being arranged on the frame (1) and used for pushing the stator core after the press-fitting operation is completed away from the material pressing point (6); The first feeding mechanism (2) comprises a first blanking assembly (21) and a first transfer assembly (22); the first blanking assembly (21) is arranged on the frame (1); the first blanking assembly (21) has a first blanking point (7); the first blanking assembly (21) is used to vertically drop the rotating shafts one by one to the first blanking point (7); the first transfer assembly (22) is arranged on the frame (1) and is used to transfer the rotating shafts dropped to the first blanking point (7) to the pressing point (6); The second feeding mechanism (3) comprises a second blanking assembly (31) and a second transfer assembly (32); the second blanking assembly (31) is arranged on the frame (1); the second blanking assembly (31) has a second blanking point (8); the second blanking assembly (31) is used to vertically drop the stator cores one by one to the second blanking point (8); the second transfer assembly (32) is arranged on the frame (1) and is used to transfer the stator cores dropped to the second blanking point (8) to the pressing point (6); The second blanking assembly (31) comprises a limit box (311) and a plurality of limit rods (312); the limit box (311) is covered at the second blanking point (8); a through hole is provided on the upper surface of the limit box (311) for the stator core to fall downward; a plurality of limit rods (312) are vertically fixed on the upper surface of the limit box (311), and a plurality of limit rods (312) are located around the through hole; The second transfer assembly (32) comprises a material pushing arc plate (321), a limiting arc plate (322) and a second driving member, wherein the limiting arc plate (322) is fixedly arranged on the frame (1), and the limiting arc plate (322) is located on the side of the material pressing point (6), and the second driving member is arranged on the frame (1) for driving the material pushing arc plate (321) to move towards or away from the limiting arc plate (322), and the moving path of the material pushing arc plate (321) passes through the second material dropping point (8), and when the material pushing arc plate (321) moves to a position close to the limiting arc plate (322), the material pushing arc plate (321) and the limiting arc plate (322) are arranged to form a circle for fixing the stator core; The material pressing mechanism (4) comprises a clamp (41) and a third driving member, wherein the clamp (41) is in a vertical state and is used to clamp and fix the rotating shaft, and the third driving member is arranged on the frame (1) and is used to drive the clamp (41) to move vertically up and down at the material pressing point (6); The pushing mechanism (5) comprises a lifting assembly (51), a first pushing assembly (52) and a second pushing assembly (53); the lifting assembly (51) is arranged on the frame (1) for supporting and lifting the stator core located at the pressing point (6); the first pushing assembly (52) is arranged on the frame (1) for pushing away the stator core after the pressing operation; and the second pushing assembly (53) is arranged on the frame (1) for unloading the stator core pushed away from the pressing point (6).

2. The automatic shaft fixing device for a new energy stator core according to claim 1 is characterized in that: The lifting assembly (51) comprises a lifting cylinder (511) and a lifting plate (512), wherein the lifting plate (512) is located directly below the material pressing point (6), and the lifting cylinder (511) is arranged on the frame (1) to drive the lifting plate (512) to move vertically up and down.

3. The automatic shaft fixing device for a new energy stator core according to claim 1 is characterized in that: It also comprises a twisting mechanism (9), which is arranged on the frame (1) and is used to perform an oblique twisting operation on the laminations of the stator core after the pressing operation.

4. The automatic shaft fixing device for a new energy stator core according to claim 3 is characterized in that: The torsion plate mechanism (9) comprises a torsion plate (91), a linear drive module (92) and a rotation drive module (93); the linear drive module (92) is arranged on the frame (1) and is used to drive the rotation drive module (93) and the torsion plate (91) to reciprocate in a direction approaching or away from the pressing point (6); the rotation drive module (93) is arranged on the linear drive module (92) and is used to drive the torsion plate (91) to rotate; when the torsion plate (91) moves in a direction approaching the pressing point (6), the torsion plate (91) is inserted into a groove of a stator core lamination; the limiting arc plate (322) is provided with a avoidance groove (10) for avoiding the torsion plate (91).

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