Middle-and-large-sized motor assembling equipment

Abstract

The invention discloses medium-and-large-sized motor assembling equipment which comprises a shell, a first ejector pin, a second ejector pin, a centering assembly, a transverse moving mechanism and a lifting assembly, wherein the first ejector pin and the second ejector pin are mounted on the shell; the centering assembly is arranged on the second ejector pin; the transverse moving mechanism is mounted on the shell; the second ejector pin can penetrate through the stator, the centering assembly can adjust the installation center of the stator so that the installation center of the stator and the axis of the rotor can be located on the same straight line, and the output end of the lifting assembly can compensate the height difference of the stator before and after adjustment. The centering assembly can automatically adjust the installation center of the stator according to the position and state of the rotor, and manual repeated measurement and adjustment are not needed. The lifting assembly can automatically compensate the height difference of the stator, and the tedious process of manually adjusting the height is avoided. By means of the automatic functions, the whole assembling process is more efficient and faster, time waste and errors caused by manual operation are reduced, and the assembling efficiency is remarkably improved.

Description

Technical Field

[0001] The present application relates to the technical field of motor assembly, and in particular to a medium-to-large motor assembly device. Background Art

[0002] In the actual assembly and production of permanent magnet motors, due to the strong suction force of rare earth permanent magnets, the rotor and stator components tend to be attracted during the assembly process, making it difficult to effectively perform centering assembly. At present, there are some assembly devices for large motors, such as a large permanent magnet motor assembly device with a publication number of CN218498993U. However, although this patent can realize the centering assembly of permanent magnet motors, manual center calibration is required every time before assembling the stator and rotor, which is cumbersome and affects the assembly efficiency. Summary of the invention

[0003] The purpose of this application is to provide a medium-to-large motor assembly device in order to improve the efficiency of the centering assembly of permanent magnet motors.

[0004] A medium and large motor assembly equipment provided in the present application adopts the following technical solution: it includes a shell, a first ejector pin and a second ejector pin installed on the shell, a centering assembly for adjusting the installation center of the stator, a transverse movement mechanism installed on the shell, and a lifting assembly for compensating for the height difference before and after the stator is adjusted; the rotor is clamped by the first ejector pin and the second ejector pin, the stator is installed on the lifting assembly, and the rotor and the stator are caused to move relative to each other through the transverse movement mechanism to realize the assembly of the rotor and the stator; the second ejector pin can penetrate the stator, the centering assembly is arranged on the second ejector pin, and the lifting assembly is installed on the transverse movement mechanism.

[0005] By adopting the above technical solution, the first ejector and the second ejector clamp the rotor to ensure the position accuracy of the rotor during the assembly process. Through precise clamping, the axis of the rotor can be kept stable, providing an accurate position reference for subsequent assembly with the stator; the second ejector passes through the stator, and the installation center of the stator is adjusted through the centering component to make it in the same straight line with the axis of the rotor, which greatly improves the assembly accuracy of the permanent magnet motor; the transverse mechanism enables the rotor and the stator to move relative to each other, so that the stator and the rotor can be assembled; when the centering component adjusts the center position of the stator, the height of the stator will change, and the compensation effect of the lifting component can keep the stator at a suitable height at all times, achieve good cooperation with the rotor, and ensure the accuracy and quality of assembly.

[0006] Optionally, the centering assembly includes a rotating shaft rotatably connected to the second ejector, a plurality of connecting rod units arranged on the second ejector, a threaded block threadedly connected to the rotating shaft, and a linkage unit driving the rotating shaft, the linkage unit is connected to the transverse movement mechanism through a chain drive, the rotating shaft is provided with two threaded portions with opposite spiral directions, the threaded block is divided into two groups and threadedly connected to the two threaded portions respectively, and the threaded block drives the connecting rod unit to move.

[0007] By adopting the above technical solution, the shaft is provided with two threaded parts with opposite spiral directions, so that when the shaft rotates, the two threaded blocks can move in opposite directions at the same time, so that the connecting rod unit can extend and retract; the connection between the rotor and the linkage unit receives the power from the linkage unit and converts it into the linear motion of the threaded block and the corresponding action of the connecting rod unit. The rotation of the shaft enables the entire centering assembly to operate in a coordinated manner to realize the adjustment function of the stator installation center; the connecting rod unit moves under the drive of the threaded block, and its movement can directly act on the stator, and through the extension or contraction of the connecting rod, the stator is pushed to make a small displacement in the horizontal direction, thereby realizing the adjustment of the stator installation center; the setting of several connecting rod units can support and adjust the stator from multiple directions, so that the force on the stator is more uniform and the adjustment process is smoother. This multi-point adjustment method can improve the accuracy and stability of the stator installation center adjustment; it is connected to the transverse mechanism through chain transmission, so that the work of the centering assembly can be coordinated with the action of the transverse mechanism. During the assembly process of the permanent magnet motor, the relative position adjustment between the stator and the rotor requires not only horizontal lateral movement but also vertical centering adjustment. The connection between the linkage unit and the lateral movement mechanism realizes the power transmission and action synchronization between the two, ensuring that while the lateral movement mechanism adjusts the relative position of the rotor and the stator, the centering component can adjust the stator installation center in a timely and accurate manner, thus improving assembly efficiency and accuracy.

[0008] Optionally, the connecting rod unit includes a first rod, a second rod, and an adjusting rod, the end of the first rod and the end of the second rod rotate coaxially on the second ejector pin, the angle formed by the first rod and the second rod is an obtuse angle, the threaded block is slidably connected to the first rod and the second rod, and the end of the first rod and the end of the second rod are both slidably connected to the adjusting rod.

[0009] By adopting the above technical solution, the ends of the first rod and the second rod are coaxially rotated and connected to the second ejector pin, and the two form an obtuse angle. This structural design provides a stable support frame for the stator. During the operation of the centering assembly, it can withstand a certain force, ensure the stability when adjusting the position of the stator, and prevent the stator from excessive shaking or excessive displacement deviation; the first rod and the second rod are slidably connected with the threaded block and the adjustment rod. When the threaded block moves under the drive of the rotating shaft, it will drive the first rod and the second rod to move. Due to the connection relationship between them and the existence of the obtuse angle, they can work together to achieve fine adjustment of the stator position by changing the size and direction of the angle; the adjustment rod is slidably connected to the ends of the first rod and the second rod. When the first rod and the second rod move, the adjustment rod plays the role of transmitting the force. It can transmit and balance the movement force of the first rod and the second rod, so that the stator is more evenly stressed when subjected to the adjustment force, avoiding the situation of excessive or too small local force, thereby ensuring the stability and accuracy of the stator installation center adjustment.

[0010] Optionally, the linkage unit includes a worm wheel fixedly connected to the end of the rotating shaft, a worm capable of engaging with the worm wheel, a first sprocket fixedly connected to the end of the worm, a second column fixedly connected to the shell, a second mounting block slidably connected to the second column, a second sprocket mounted on the second mounting block, a second spring sleeved on the second column, and a second shaft fixedly connected to the second mounting block, the second spring forces the second mounting block to move upward, and the first sprocket, the second sprocket and the transverse movement mechanism are connected by a chain drive.

[0011] By adopting the above technical solution, the transverse movement mechanism drives the first sprocket and the second sprocket to rotate through the sprocket transmission. Since the length of the chain of the transverse movement mechanism changes during the movement, the position of the second sprocket is changed under the action of the second spring, so that the chain between the transverse movement mechanism, the first sprocket and the second sprocket is tensioned.

[0012] Optionally, the linkage unit also includes a first column fixedly connected to the shell, a first mounting block slidably connected to the first column, a first spring sleeved on the first column, a first axis rotatably connected to the first mounting block, a trigger block arranged on the moving track of the transverse mechanism, a trigger plate slidably connected to the shell, a connecting rod respectively connecting the first mounting block and the trigger plate, and a third spring driving the trigger plate to reset, the first spring and the third spring respectively force the first mounting block and the trigger plate to move upward, the worm is arranged on the first axis, and the elastic coefficient of the third spring is greater than the elastic coefficient of the second spring.

[0013] By adopting the above technical scheme, the change of chain length can be adapted; the transverse mechanism can press down the trigger block during movement, and realize the meshing of the worm wheel and the worm through the connecting rod. The initial state of the worm wheel and the worm gear is in a disengaged state. Only when the transverse mechanism moves to the area between them, the centering component can work; the first spring and the second spring can absorb the impact or vibration during the power transmission process; the power of the power source of the transverse mechanism can be transmitted to the first sprocket through the chain drive to realize the rotation of the worm. When the worm drives the worm wheel to rotate, the effect of deceleration and increase of torque can be achieved. When the stator position needs to be precisely adjusted, the deceleration effect of the worm gear mechanism can make the rotation of the shaft slower and smoother, thereby improving the centering accuracy; the elastic coefficient of the third spring is greater than the elastic coefficient of the second spring, which prevents the chain from meshing the worm wheel with the worm during the tensioning process.

[0014] Optionally, the transverse movement mechanism includes a moving platform slidably connected to the shell, a rack fixedly connected to the shell, a power shaft rotatably connected to the moving platform, and a motor driving the power shaft. The power shaft passes through the moving platform, and a gear meshing with the rack is fixedly connected to the end of the power shaft. The motor and the power shaft are connected by a chain drive.

[0015] By adopting the above technical solution, the mobile platform can slide on the shell, providing a platform for the relative movement of the stator and the rotor. Driven by the motor, the mobile platform drives the components it carries to move together, realizing the horizontal position adjustment of the stator so as to accurately assemble and align with the rotor; the motor realizes the movement of the mobile platform through gears and racks; the power shaft runs through the mobile platform, one end is fixedly connected to the gear, and the other end is connected to the motor through a chain drive. The torque of the motor is transmitted to the power shaft through the chain drive, and the power shaft then transmits the torque to the gear, so that the gear can generate sufficient driving force to mesh with the rack, thereby driving the mobile platform to move.

[0016] Optionally, the lifting assembly includes a loading platform, a guide column fixedly connected to the loading platform, a screw rod rotatably connected to the loading platform, and a connecting unit connecting the screw rod and a power shaft, and the screw rod is threadedly connected to the moving platform.

[0017] By adopting the above technical solution, the stage is connected to the moving platform and other components through the guide column, and the connecting screw is also rotated. This connection method enables the stage to move up and down under the guidance of the guide column, and its height position can be accurately controlled by the rotation of the screw. As the core bearing part of the entire lifting assembly, the stage transmits the movement and force of each component to the stator to achieve the height adjustment of the stator; the guide column is fixedly connected to the stage and has a corresponding matching structure with the moving platform. Its main function is to provide precise guidance for the up and down movement of the stage; the screw is rotatably connected to the stage and is threadedly connected to the moving platform. When the screw rotates, due to the threaded matching between the screw and the moving platform, the screw will produce axial linear motion, thereby driving the stage to move up and down along the guide column; the main function of the connecting unit is to transmit the power of the power shaft to the screw so that the screw can rotate.

[0018] Optionally, the connecting unit includes a first bevel gear fixedly connected to the end of the screw rod, a pair of sleeves connected to the power shaft with a sliding key, a connecting rod slidably connected to the two sleeves, a shift rod slidably connected to the housing, and two sleeves respectively fixedly connected to a second bevel gear and a third bevel gear, the second bevel gear and the third bevel gear are facing opposite to each other, the shift rod passes through the connecting rod, and when the shift rod drives the connecting rod to move, the first bevel gear engages with the second bevel gear / third bevel gear.

[0019] By adopting the above technical solution, the first bevel gear mainly plays the role of transmitting power and changing the direction of rotation. When it is meshed with the second bevel gear or the third bevel gear, it can transmit the power from the power shaft to the screw through the bevel gear transmission, so that the screw rotates, thereby realizing the lifting and lowering movement of the loading platform. At the same time, since the bevel gear transmission can change the rotation direction of the shaft, the horizontal rotation of the power shaft can be converted into the vertical rotation of the screw, which meets the requirements of the lifting component in terms of structure and movement mode; the sleeve sliding key is connected to the power shaft, on the one hand, it can rotate with the rotation of the power shaft, and on the other hand, it can slide in the axial direction. Through this connection method, the sleeve can transmit the torque of the power shaft to the second bevel gear and the third bevel gear fixedly connected thereto. During the working process of the connection unit, the sleeve plays the role of a bridge for intermediate connection and power transmission, ensuring that the power can be smoothly transmitted from the power shaft to the bevel gear, thereby driving the screw to rotate; the sliding characteristics of the sleeve are the key to realizing the meshing switching between the first bevel gear and different bevel gears. Through the action of the connecting rod and the lever, the sleeve can drive the second bevel gear and the third bevel gear to move in the axial direction, so that the first bevel gear can selectively mesh with one of the bevel gears. The connecting rod is slidably connected to the two sleeves, and its main function is to connect the two sleeves together to achieve their synchronous movement. When the lever drives the connecting rod to move, the connecting rod can simultaneously drive the two sleeves to slide on the power shaft, thereby adjusting the position of the second bevel gear and the third bevel gear, so that the first bevel gear can mesh with the corresponding bevel gear.

[0020] Optionally, the adjusting rod of the connecting rod unit located at the highest / lowest position is provided with a groove, the groove is slidably connected with an abutment rod, the abutment rod is fixedly connected with a limiting rod that passes through the adjusting rod, the limiting rod sleeve is provided with a fourth spring, the fourth spring forces the limiting rod to move in the direction away from the rotating shaft, the first ejector is rotatably connected with an abutment assembly, the rotation center axis of the abutment assembly is perpendicular to the axis of the first ejector, the end of the abutment rod is sleeved with an abutment block, the abutment rod sleeve is provided with a fifth spring, the fifth spring forces the abutment block to move toward the abutment assembly, the shell is fixedly connected with a fourth column, the fourth column is slidably connected with the first driving rod and the second driving rod, the first driving rod and the second driving rod are respectively arranged on both sides of the abutment assembly, the fourth column sleeve is provided with a return spring, the return spring forces the first driving rod and the second driving rod to move toward the abutment assembly, the shift rod is provided with a pair of centrally symmetrical driving grooves, the first driving rod and the second driving rod pass through the driving grooves.

[0021] By adopting the above technical solution, when the centering component locates the center of the stator, it is necessary to offset the position of the stator up and down and left and right, wherein the left and right offset has little effect on the final centering effect. When the stator is offset up and down, the stage needs to be moved up and down. When the abutment rod abuts against the stator mounting portion, the end of the abutment rod will be compressed into the groove, so that the original balanced position of the abutment block at the highest point and the abutment block at the lowest point is broken, so that the abutment component can be offset, and the abutment component pushes the first drive rod / the second drive rod to move. The first drive rod / the second drive rod can drive the lever to move under the action of the drive groove, thereby realizing the meshing of the first bevel gear with the corresponding bevel gear.

[0022] Optionally, the driving groove includes an avoidance groove and an inclined groove, the avoidance groove and the inclined groove form an obtuse angle a, a is greater than 90° and less than 135°, and the avoidance groove is parallel to the rotating shaft.

[0023] By adopting the above technical solution, the inclined groove and the avoidance groove form an obtuse angle a, and its main function is to convert the linear motion of the shifting rod into the lateral movement of the driving rod through the contact between the inclined surface of the inclined groove and the first driving rod and the second driving rod when the shifting rod moves. This direction conversion function enables the shifting rod to apply forces in different directions to the driving rod through the inclined groove; the avoidance groove provides an unobstructed moving space for the first driving rod and the second driving rod.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The first ejector pin and the second ejector pin work together to clamp the rotor, ensuring that the rotor has extremely high position accuracy during the assembly process and that the rotor axis is stable. This provides an extremely accurate position reference for the subsequent assembly of the stator and rotor, ensuring the precise starting point of the assembly from the source; the threaded block on the shaft drives the connecting rod unit to move, which can accurately adjust the installation center of the stator so that it is in the same straight line as the rotor axis; the lifting assembly can compensate for the height difference before and after the stator is adjusted, so that after the center position of the stator is adjusted in the horizontal direction, it can still achieve perfect cooperation with the rotor in the vertical direction. Whether in the initial assembly or during the adjustment process, the relative position of the stator and rotor in three-dimensional space can be ensured to be accurate, further improving the accuracy and quality of the assembly; 2. The linkage unit and the transverse mechanism are connected through a chain drive to achieve power transmission and action synchronization. During the assembly process of the permanent magnet motor, the relative position adjustment of the stator and the rotor needs to be carried out simultaneously in the horizontal and vertical directions. This connection method enables the centering component to synchronously and timely adjust the stator installation center in the vertical direction when the transverse mechanism adjusts the horizontal relative position of the rotor and the stator. No additional waiting time or manual intervention is required, which greatly shortens the assembly time and improves the assembly efficiency; 3. Traditional motor assembly equipment may require frequent manual calibration and adjustment, but this equipment greatly reduces the manual operation links and time through a series of automated designs and collaborative working mechanisms. For example, the centering component can automatically adjust the stator installation center according to the position and state of the rotor, without the need for repeated manual measurement and adjustment. The lifting component can automatically compensate for the stator height difference, avoiding the tedious process of manual height adjustment. The implementation of these automated functions makes the entire assembly process more efficient and faster, reduces the time waste and error caused by manual operation, and significantly improves assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 It is a structural schematic diagram of a centering component of an embodiment of the present application; Figure 3 It is a structural schematic diagram of the linkage unit of an embodiment of the present application; Figure 4 It is a structural schematic diagram of the transverse movement mechanism of an embodiment of the present application; Figure 5 is a schematic diagram of the structure of the connection unit of an embodiment of the present application; Figure 6 It is a schematic diagram of the structure of the drive slot of an embodiment of the present application.

[0026] 1. Shell; 11. Assembly area; 12. Waiting area; 2. Second ejector pin; 21. Centering assembly; 211. Linkage unit; 2111. First rod; 2112. Second rod; 2113. Driving rod; 2114. First slide slot; 2115. Second slide slot; 212. Linkage unit; 2120. Second sprocket; 2121. First column; 2122. Second column; 2123. First mounting block; 2124. Second mounting block; 2125. First spring; 2126. Second spring; 2127. First shaft; 2128. Second shaft; 2129. First sprocket; 213. Rotating shaft; 214. Threaded portion; 215. Threaded block; 22. Abutment rod; 221. Abutment block; 222. Fifth spring; 223. Fourth spring; 224. Abutment assembly; 225. groove; 226, limiting rod; 23, worm; 24, worm wheel; 25, trigger block; 251, trigger plate; 252, third column; 253, third spring; 254, connecting rod; 3, first ejector; 4, stator; 5, rotor; 6, transverse mechanism; 61, rack; 62, gear; 63, power shaft; 64, connecting unit; 641, sleeve; 642, second bevel gear; 643, third bevel gear; 644, connecting rod; 645, lever; 646, driving groove; 6461, inclined groove; 6462, avoidance groove; 647, first driving rod; 648, second driving rod; 649, fourth column; 6491, reset spring; 65, motor; 7, lifting assembly; 71, loading platform; 72, guide column; 73, screw rod; 74, first bevel gear; 75, moving platform; 751, guide surface. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 -Attached Figure 6 This application is described in further detail.

[0028] The embodiment of the present application discloses a medium-to-large motor assembly device.

[0029] Example 1, reference Figure 1A medium-to-large motor 65 assembly device includes a housing 1, a first ejector pin 3 and a second ejector pin 2 installed on the housing 1, and a transverse movement mechanism 6 slidably connected to the housing 1, the housing 1 is provided with an assembly area 11 and a waiting area 12, the assembly area 11 is located between the first ejector pin 3 and the second ejector pin 2, the second ejector pin 2 is located in the waiting area 12, the first ejector pin 3 can be moved to adjust the distance between the first ejector pin 3 and the second ejector pin 2, the initial state transverse movement mechanism 6 is located in the assembly area 11, a lifting assembly 7 is installed on the transverse movement mechanism 6, the stator 4 is installed on the output end of the lifting assembly 7, the second ejector pin 2 is provided with a centering assembly 21, and the transverse movement mechanism 6 First, the stator 4 is moved to the waiting area 12 to make way for the clamping of the rotor 5. During the movement of the stator 4, the second ejector 2 can pass through the stator 4. The centering component 21 can make the assembly center position of the stator 4 coincide with the axis of the second ejector 2. The height of the stator 4 will change during the position adjustment process. The lifting component 7 automatically adjusts the height of the output end so that the stator 4 falls back to the output end of the lifting component 7. The rotor 5 is clamped to the assembly area 11 through the first ejector 3 and the second ejector 2. After the assembly of the rotor 5 is completed, the transverse movement mechanism 6 moves the stator 4 back to the assembly area 11 again, so that the rotor 5 can be assembled to the installation center of the stator 4.

[0030] refer to Figure 2 The centering component 21 includes a rotating shaft 213 rotatably connected to the second ejector 2, a plurality of connecting rod units 211 arranged on the second ejector 2, a threaded block 215 threadedly connected to the rotating shaft 213, and a linkage unit 212 driving the rotating shaft 213. The linkage unit 212 and the transverse movement mechanism 6 transmit power through a chain drive. The rotating shaft 213 is provided with two threaded portions 214 with opposite spiral directions. Each threaded portion 214 is threadedly connected to a threaded block 215. When the rotating shaft 213 rotates, the two threaded blocks 215 will move in opposite directions. The threaded block 215 can drive the connecting rod unit 211 to move, and the plurality of connecting rod units 211 can push the stator 4 to perform center positioning.

[0031] refer to Figure 2The connecting rod unit 211 includes a first rod 2111, a second rod 2112, and an adjusting rod. The end of the first rod 2111 and the end of the second rod 2112 rotate coaxially on the second ejector 2, and the angle formed by the first rod 2111 and the second rod 2112 is an obtuse angle; the first rod 2111 and the second rod 2112 are both provided with a first slide groove 2114, and the threaded hole is slidably connected with the first slide groove 2114 through a pin shaft. When the two threaded blocks 215 move, the angle formed by the first rod 2111 and the second rod 2112 can be changed; the adjusting rod is provided with two symmetrical second slide grooves 2115, and the ends of the first rod 2111 and the second rod 2112 are both slidably connected with the second slide groove 2115. When the first rod 2111 and the second rod 2112 move inward to reduce the angle formed, the driving rod 2113 will be pushed outward to the second ejector 2.

[0032] refer to Figure 2 and Figure 3 The linkage unit 212 includes a first column 2121 and a second column 2122 fixedly connected to the housing 1, a first mounting block 2123 and a second mounting block 2124 respectively slidably connected to the first column 2121 and the second column 2122, a first spring 2125 and a second spring 2126 respectively sleeved on the first column 2121 and the second column 2122, a first shaft 2127 and a second shaft 2128 respectively rotatably connected to the first mounting block 2123 and the second mounting block 2124, and a first shaft 2128 respectively fixedly connected to the first The first sprocket 2129 and the second sprocket 2120 of the shaft 2127 and the second shaft 2128, the first shaft 2127 is fixedly connected to the worm 23 meshing with the worm wheel 24, the first spring 2125 and the second spring 2126 respectively drive the first mounting block 2123 and the second mounting block 2124 to move upward; the first sprocket 2129 and the transverse movement mechanism 6 transmit power through the chain drive, so that when the transverse movement mechanism 6 moves, it can synchronously drive the rotating shaft 213 to rotate, so that the connecting rod unit 211 expands outward; However, since the movement of the transverse mechanism 6 will cause changes in the length of the chain, the chain may be detached from the sprocket. The second column 2122, the second mounting block 2124, the second sprocket 2120 and the second spring 2126 can compensate for the change in the length of the chain. When the transverse mechanism 6 moves toward the assembly area 11, the chain is in a tensioned state. The chain bypasses the second sprocket 2120, and the chain will apply downward pressure to the sprocket, causing the second spring 2126 to be compressed, compensating for the change in the chain caused by the movement of the transverse mechanism 6; when the transverse mechanism 6 moves toward the waiting area 12, the chain is in a relaxed state as a whole. At this time, the second spring 2126 resets and drives the second mounting block 2124 to move upward, and the second sprocket 2120 constantly tensions the chain.

[0033] refer to Figure 3During the movement of the transverse mechanism 6, the connecting rod unit 211 may expand too much, resulting in the inability of the second ejector 2 to extend into the installation center of the stator 4. In order to avoid this situation, the housing 1 is fixedly connected with a plurality of third columns 252, and the third columns 252 are slidably connected with a trigger plate 251. The third columns 252 are sleeved with a third spring 253, and the third spring 253 forces the trigger plate 251 to move upward. The trigger plate 251 is fixedly connected with a trigger block 25, and the trigger block 25 is set on the moving track of the transverse mechanism 6. The trigger plate 251 is fixedly connected with a connecting rod 254, and the connecting rod 254 is fixedly connected to the first installation block 2123; initial state In the state, under the action of the first spring 2125 and the third spring 253, the first mounting block 2123 moves upward, so that the screw and the worm wheel 24 are separated, so that the first sprocket 2129 drives the worm 23 to idle, and only when the transverse mechanism 6 touches the trigger block 25 and presses down, the trigger plate 251 moves downward, the third spring 253 is compressed, and the first mounting block 2123 is driven to move downward through the connecting rod 644, so that the worm wheel 24 and the worm 23 are meshed; when the transverse mechanism 6 releases the trigger block 25, the third spring 253 is reset, so that the connecting rod 254 drives the first mounting block 2123 to move upward, so that the worm 23 and the worm wheel 24 are separated. In this way, only when the transverse mechanism 6 presses down the trigger block 25, the connecting rod unit 211 starts to expand, which prevents the connecting rod unit 211 from expanding too much, resulting in the second ejector 2 being unable to extend into the installation center of the stator 4.

[0034] refer to Figure 3 and Figure 4The transverse movement mechanism 6 includes a moving platform 75 slidably connected to the housing 1, a guide surface 751 disposed on the moving platform 75, a rack 61 fixedly connected to the housing 1, a power shaft 63 rotatably connected to the moving platform, and a motor 65 driving the power shaft 63. The power shaft 63 passes through the moving platform, and the guide surface 751 can better press down the trigger block 25 during the movement. The end of the power shaft 63 is fixedly connected to a gear 62 meshing with the rack 61. The motor 65 is connected to the power shaft 63 through a chain transmission. The torque output by the motor 65 is transmitted to the power shaft 63 through the chain transmission. The power shaft 63 passes through the moving platform and its end is fixedly connected to a gear 62. When the power shaft 63 obtains the torque transmitted by the motor 65, it starts to rotate. Since the gear 62 is meshed with the rack 61 fixed on the housing 1, according to the transmission principle of the gear 62 and the rack 61, the rotational motion of the gear 62 is converted into a linear motion along the rack 61. In this process, the gear 62 acts as the active part, and the rack 61 acts as the fixed guide and transmission part. As the gear 62 rolls along the rack 61, the moving platform connected to the power shaft 63 begins to slide on the housing 1. The sliding connection structure between the moving platform and the housing 1 provides the necessary support and guidance for the movement of the moving platform, ensuring that the moving platform can only move along a predetermined linear direction. This linear movement realizes the position adjustment of the stator 4 relative to the rotor 5 in the horizontal direction, thereby achieving the purpose of accurately moving the stator 4 to a suitable assembly position with the rotor 5.

[0035] refer to Figure 4 The lifting assembly 7 includes a stage 71, a guide column 72 fixedly connected to the stage 71, a screw rod 73 rotatably connected to the stage 71, and a connecting unit 64 connecting the screw rod 73 and the power shaft 63. The screw rod 73 is threadedly connected to the mobile platform, and the power of the power shaft 63 is transmitted to the screw rod 73 through the connecting unit 64. The connecting unit 64 plays a key role in power transfer. It can transmit the rotational power of the power shaft 63 to the screw rod 73 as needed, and can control the rotation direction of the screw rod 73. The screw rod 73 is rotatably connected to the stage 71. When the screw rod 73 obtains the power from the connecting unit 64 and starts to rotate, since the screw rod 73 is threadedly connected to the mobile platform, according to the transmission principle of the screw rod 73, the rotational motion of the screw rod 73 will be converted into axial linear motion. The column is fixedly connected to the stage 71 and has a corresponding matching structure with the mobile platform. Through the rotation and axial linear motion of the screw rod 73, and the guiding effect of the guide column 72, the stage 71 realizes the lifting motion. During the assembly process of the permanent magnet motor 65, this lifting movement can accurately adjust the height position of the stator 4 according to the height difference after the centering component 21 adjusts the stator 4, or according to different assembly process requirements.

[0036] refer to Figure 4The connecting unit 64 includes a first bevel gear 74 fixedly connected to the end of the screw rod 73, a pair of sleeves 641 connected to the power shaft 63 by a sliding key, a connecting rod 644 slidably connected to the two sleeves 641, a lever 645 slidably connected to the housing 1, and the two sleeves 641 are respectively fixedly connected with a second bevel gear 642 and a third bevel gear 643, the second bevel gear 642 and the third bevel gear 643 face oppositely, the lever 645 penetrates the connecting rod 644, and when the lever 645 drives the connecting rod 644 to move, the first bevel gear 74 engages with the second bevel gear 642 / the third bevel gear 643. The power shaft 63 is connected to a pair of sleeves 641 by a sliding key. The sliding key connection method enables the sleeve 641 to slide axially on the power shaft 63 and rotate with the power shaft 63. In this way, the rotational motion of the power shaft 63 can be effectively transmitted to the sleeve 641. The sleeve 641, as an intermediate transmission component, can further transmit power to the second bevel gear 642 and the third bevel gear 643 fixedly connected thereto; since the second bevel gear 642 and the third bevel gear 643 are respectively fixedly connected to the two sleeves 641, when the sleeve 641 rotates with the power shaft 63, the bevel gears will also rotate synchronously. This fixed connection ensures the stable transmission of power from the sleeve 641 to the bevel gears, so that the second bevel gear 642 and the third bevel gear 643 can obtain power and prepare for the next step of power transmission; the first bevel gear 74 is fixedly connected to the end of the screw rod 73. When the lever 645 drives the connecting rod 644 to move, so that the first bevel gear 74 is meshed with the second bevel gear 642 or the third bevel gear 643, the power is transmitted from the second bevel gear 642 or the third bevel gear 643 to the first bevel gear 74. Because the bevel gear transmission can change the rotation direction of the shaft, the horizontal rotation power of the power shaft 63 can be converted into the vertical rotation power of the screw 73, thereby realizing the transmission of power from the power shaft 63 to the screw 73, and finally driving the screw 73 to rotate, so that the loading platform 71 can achieve lifting movement. The lever 645 passes through the connecting rod 644. When the lever 645 moves, it will drive the connecting rod 644 to move. Since the connecting rod 644 is slidably connected to the two sleeves 641, the movement of the connecting rod 644 will drive the two sleeves 641 to slide on the power shaft 63. Because the second bevel gear 642 and the third bevel gear 643 are respectively fixed on the two sleeves 641 and face oppositely, the sliding of the sleeve 641 can enable the first bevel gear 74 to selectively engage with the second bevel gear 642 or the third bevel gear 643.

[0037] refer to Figure 2 and Figure 5The adjusting rod of the connecting rod unit 211 at the highest / lowest position is provided with a groove 225, and the groove 225 is slidably connected with the abutting rod 22, and the abutting rod 22 is fixedly connected with a limiting rod 226 that penetrates the adjusting rod, and the limiting rod 226 is sleeved with a fourth spring 223, and the fourth spring 223 forces the limiting rod 226 to move in a direction away from the rotating shaft 213, and the first ejector 3 is rotatably connected with an abutting assembly 224, and the rotation center axis of the abutting assembly 224 is perpendicular to the axis of the first ejector 3, and the end of the abutting rod 22 is sleeved with an abutting block 221, and the abutting rod 22 is sleeved with a fifth spring 222, and the fifth spring 222 forces The abutment block 221 moves toward the abutment assembly 224, and the shell 1 is fixedly connected to the fourth column 649, and the fourth column 649 is slidably connected to the first drive rod 647 and the second drive rod 648, and the first drive rod 647 and the second drive rod 648 are respectively arranged on both sides of the abutment assembly 224, and the fourth column 649 is sleeved with a return spring 6491, and the return spring 6491 forces the first drive rod 647 and the second drive rod 648 to move toward the abutment assembly 224, and the lever 645 is provided with a pair of centrally symmetrical drive grooves 646, and the first drive rod 647 and the second drive rod 648 pass through the drive grooves 646.

[0038] When the stator 4 is adjusted in position under the action of the centering assembly 21, the groove 225 and the abutment rod 22 on the adjusting rod of the connecting rod unit 211 at the highest / lowest position play a key detection role. If the stator 4 deflects upward, the abutment rod 22 located below will first contact the stator 4 mounting portion. Since the abutment rod 22 is slidably connected to the groove 225, during the contact process, the end of the abutment rod 22 will be compressed into the groove 225. Similarly, when the stator 4 deflects downward, the abutment rod 22 located above will contact the stator 4 mounting portion and be compressed into the groove 225. This compression action of the abutment rod 22 in the groove 225 can be used as a detection signal for the up and down displacement of the stator 4. Moreover, because the abutment rod 22 is fixedly connected with a limiting rod 226 that penetrates the adjusting rod, the limiting rod 226 is sleeved with a fourth spring 223, and the fourth spring 223 forces the limiting rod 226 to move in the direction away from the rotating shaft 213, so the compression degree of the abutment rod 22 will be limited and buffered by the fourth spring 223.

[0039] The end of the abutment rod 22 is sleeved with an abutment block 221, and the abutment rod 22 is sleeved with a fifth spring 222, which forces the abutment block 221 to move toward the abutment assembly 224. Under normal circumstances, the abutment blocks 221 at the highest and lowest points are in a state of balance with the abutment assembly 224. When the stator 4 deviates up and down and causes the abutment rod 22 to be compressed, this balance is broken; when the lower abutment rod 22 is compressed, the lower abutment block 221 will move in the direction away from the abutment assembly 224, while the position of the upper abutment block 221 remains relatively unchanged, which will cause the abutment assembly 224 to be subjected to an unbalanced force, thereby rotating. This rotation direction and amplitude can be used to determine the up and down deflection direction of the stator 4 according to the position change of the abutment block 221 and the force condition of the abutment assembly 224. The first drive rod 647 and the second drive rod 648 penetrate the drive slot 646 of the shifting rod 645, and when the first drive rod 647 / the second drive rod 648 moves, they will interact with the drive slot 646. According to the shape of the driving slot 646 and the moving direction of the first driving rod 647 / the second driving rod 648 in the slot, the influence of the up and down offset direction of the stator 4 on the moving direction of the lever 645 can be finally determined, thereby realizing the detection of the offset direction of the stator 4, and based on the detection result, the first bevel gear 74 can be meshed with the corresponding bevel gear to adjust the height of the stage 71 to compensate for the up and down offset of the stator 4.

[0040] refer to Figure 6, when the stator 4 undergoes vertical displacement, causing the abutting component 224 to push the first driving rod 647 or the second driving rod 648 to move, the first driving rod 647 / the second driving rod 648 will contact the inclined groove 6461 of the shift lever 645. Since the inclined groove 6461 is inclined, according to the principle of force decomposition, the force exerted by the first driving rod 647 / the second driving rod 648 on the inclined groove 6461 can be decomposed into two component forces along the direction of the inclined groove 6461 and perpendicular to the inclined groove 6461. Among them, the component force along the direction of the inclined groove 6461 will push the shift lever 645 to move. The avoidance groove 6462 and the inclined groove 6461 form an obtuse angle a, where 90° < a < 135°. When the first driving rod 647 / the second driving rod 648 pushes the inclined groove 6461, the obtuse angle enables the inclined direction of the inclined groove 6461 to effectively convert the lateral force of the first driving rod 647 / the second driving rod 648 into the axial moving force of the shift lever 645. Moreover, the existence of the obtuse angle can avoid the extreme decomposition of force during the force conversion process, that is, it will not cause the axial component force to be too large due to too small an angle or too small an axial component force due to too large an angle, so as to achieve a more reasonable force conversion and enable the shift lever 645 to move smoothly. The avoidance groove 6462 can also serve as a transition area for the conversion of the motion state between the driving rod 2113 and the shift lever 645. When the driving rod 2113 on one side switches from the state of pushing the inclined groove 6461 to other states, the avoidance groove 6462 provides a suitable space for the driving rod 2113 on the other side.

[0041] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A medium-to-large motor assembly equipment, characterized in that: The invention comprises a housing (1), a first ejector pin (3) and a second ejector pin (2) mounted on the housing (1), a centering assembly (21) for adjusting the installation center of a stator (4), a transverse movement mechanism (6) mounted on the housing (1), and a lifting assembly (7) for compensating for the height difference of the stator (4) before and after adjustment; the rotor (5) is clamped by the first ejector pin (3) and the second ejector pin (2), the stator (4) is mounted on the lifting assembly (7), and the rotor (5) and the stator (4) are relatively moved by the transverse movement mechanism (6), thereby realizing the assembly of the rotor (5) and the stator (4); the second ejector pin (2) can penetrate the stator (4), the centering assembly (21) is arranged on the second ejector pin (2), and the lifting assembly (7) is mounted on the transverse movement mechanism (6).

2. The medium and large motor assembly equipment according to claim 1 is characterized in that: The centering assembly (21) comprises a rotating shaft (213) rotatably connected to the second ejector (2), a plurality of connecting rod units (211) arranged on the second ejector (2), a threaded block (215) threadedly connected to the rotating shaft (213), and a linkage unit (212) driving the rotating shaft (213); the linkage unit (212) is connected to the transverse movement mechanism (6) via a chain drive; the rotating shaft (213) is provided with two threaded portions (214) with opposite spiral directions; the threaded block (215) is divided into two groups and is threadedly connected to the two threaded portions (214) respectively; the threaded block (215) drives the connecting rod unit (211) to move.

3. The medium and large motor assembly equipment according to claim 2 is characterized in that: The connecting rod unit (211) comprises a first rod (2111), a second rod (2112), and an adjusting rod; the end of the first rod (2111) and the end of the second rod (2112) rotate coaxially on the second ejector pin (2); the angle formed by the first rod (2111) and the second rod (2112) is an obtuse angle; the threaded block (215) is slidably connected to the first rod (2111) and the second rod (2112); the end of the first rod (2111) and the end of the second rod (2112) are both slidably connected to the adjusting rod.

4. The medium and large motor assembly equipment according to claim 3 is characterized in that: The linkage unit (212) comprises a worm wheel (24) fixedly connected to the end of a rotating shaft (213), a worm (23) capable of meshing with the worm wheel (24), a first sprocket (2129) fixedly connected to the end of the worm (23), a second column (2122) fixedly connected to the housing (1), a second mounting block (2124) slidably connected to the second column (2122), a second sprocket (2120) mounted on the second mounting block (2124), a second spring (2126) sleeved on the second column (2122), and a second shaft (2128) fixedly connected to the second mounting block (2124), wherein the second spring (2126) forces the second mounting block (2124) to move upward, and the first sprocket (2129), the second sprocket (2120) and the transverse movement mechanism (6) are connected via a chain drive.

5. The medium and large motor assembly equipment according to claim 4 is characterized in that: The linkage unit (212) further comprises a first column (2121) fixedly connected to the housing (1), a first mounting block (2123) slidably connected to the first column (2121), a first spring (2125) sleeved on the first column (2121), a first shaft (2127) rotatably connected to the first mounting block (2123), a trigger block (25) arranged on a moving track of the transverse movement mechanism (6), a trigger plate (251) slidably connected to the housing, a connecting rod (254) respectively connecting the first mounting block (2123) and the trigger plate (251), and a third spring (253) for driving the trigger plate to reset, the first spring (2125) and the third spring (253) respectively forcing the first mounting block (2123) and the trigger plate (251) to move upwards, the worm (23) is arranged on the first shaft (2127), and the elastic coefficient of the third spring (253) is greater than the elastic coefficient of the second spring.

6. The medium and large motor assembly equipment according to claim 5, characterized in that: The transverse movement mechanism (6) comprises a moving platform (75) slidably connected to the housing (1), a guide surface (751) arranged on the moving platform (75), a rack (61) fixedly connected to the housing (1), a power shaft (63) rotatably connected to the moving platform, and a motor (65) driving the power shaft (63); the power shaft (63) passes through the moving platform; a gear (62) meshing with the rack (61) is fixedly connected to the end of the power shaft (63); the motor (65) and the power shaft (63) are connected via a chain drive; and the guide surface (751) can press down the trigger block (25).

7. The medium and large motor assembly equipment according to claim 6, characterized in that: The lifting assembly (7) comprises a platform (71), a guide column (72) fixedly connected to the platform (71), a screw rod (73) rotatably connected to the platform (71), and a connecting unit (64) connecting the screw rod (73) and a power shaft (63), the screw rod (73) being threadedly connected to the moving platform, and the screw rod (73) being threadedly connected to the moving platform (75).

8. The medium-to-large motor assembly equipment according to claim 7, characterized in that: The connecting unit (64) comprises a first bevel gear (74) fixedly connected to the end of the screw rod (73), a pair of sleeves (641) connected to the power shaft (63) by a sliding key, a connecting rod (644) slidably connected to the two sleeves (641), a lever (645) slidably connected to the housing (1), and the two sleeves (641) are respectively fixedly connected to a second bevel gear (642) and a third bevel gear (643), the second bevel gear (642) and the third bevel gear (643) are facing each other, the lever (645) passes through the connecting rod (644), and when the lever (645) drives the connecting rod (644) to move, the first bevel gear (74) meshes with the second bevel gear (642) / the third bevel gear (643).

9. The medium and large motor assembly equipment according to claim 8, characterized in that: The adjusting rod of the connecting rod unit (211) located at the highest / lowest position is provided with a groove (225), the groove (225) is slidably connected to an abutting rod (22), the abutting rod (22) is fixedly connected to a limiting rod (226) penetrating the adjusting rod, the limiting rod (226) is sleeved with a fourth spring (223), the fourth spring (223 forces the limiting rod (226) to move in a direction away from the rotating shaft (213), the second ejector (2) is rotatably connected to an abutting assembly (224), the rotation center axis of the abutting assembly (224) is perpendicular to the axis of the first ejector (3), the end of the abutting rod (22) is sleeved with an abutting block (221), the abutting rod (22) is sleeved with a fifth spring (222), the fifth spring (222) forces the abutting assembly (224) to move in a direction away from the rotating shaft (213), The contact block (221) moves toward the abutment assembly (224); the housing (1) is fixedly connected to a fourth column (649); the fourth column (649) is slidably connected to a first drive rod (647) and a second drive rod (648); the first drive rod (647) and the second drive rod (648) are respectively arranged on both sides of the abutment assembly (224); the fourth column (649) is sleeved with a return spring (6491); the return spring (6491) forces the first drive rod (647) and the second drive rod (648) to move toward the abutment assembly (224); the shifting rod (645) is provided with a pair of centrally symmetrical drive grooves (646); the first drive rod (647) and the second drive rod (648) penetrate the drive grooves (646).

10. The medium and large motor assembly equipment according to claim 9, characterized in that: The driving groove (646) comprises an avoidance groove (6462) and an inclined groove (6461); the avoidance groove (6462) and the inclined groove (6461) form an obtuse angle a, a is greater than 90° and less than 135°, and the avoidance groove (6462) is parallel to the rotating shaft (213).

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