Rotor magnetization device and magnetization method

Abstract

This invention relates to the field of motor manufacturing technology, specifically to a rotor magnetizing device and method. It includes a magnetizing worktable, a magnetizing trolley, a limiting structure, a lifting structure, a clamping structure, a surface magnetizing worktable, and a gantry robot. The magnetizing trolley is a movable trolley with its upper end used to fix the coil. The limiting structure is used to limit and fix the magnetizing trolley. The lifting structure is used to lift the coil on the magnetizing trolley to the required magnetizing height. The clamping structure is used to clamp and fix the rotor to be magnetized within the coil. The surface magnetizing worktable is used to inspect the rotor. The gantry robot is used to transport the rotor to the magnetizing worktable or transfer the rotor from the magnetizing worktable to the surface magnetizing worktable. The rotor magnetizing device of this application has a simple structure, and coil replacement and movement are extremely convenient. It can adapt to the magnetizing requirements of various rotor specifications and meet the rotor magnetizing accuracy requirements.

Description

Technical Field

[0001] This invention relates to the field of motor manufacturing technology, specifically to a rotor magnetizing device and magnetizing method. Background Technology

[0002] With the gradual development of the new energy motor industry, the types of motors are becoming increasingly diverse. For permanent magnet synchronous motors, the rotor magnetization process has always been a major problem for many companies. Different types of rotors require different magnetization equipment and tooling. For development companies, due to the variability of motor types, equipping themselves with the relevant equipment every time would involve considerable costs.

[0003] Therefore, to solve this technical problem, a Chinese utility model patent with patent number "CN201721440320.4" entitled "A Fixture for Magnetizing and Testing a Motor Rotor" proposes a fixture for magnetizing a rotor. This fixture includes a working platform with a first through hole. A stator coil support is positioned directly above the first through hole and is detachably mounted on the working platform. A second through hole, larger in diameter than the first through hole, is located in the middle of the stator coil support. A vertically moving guide shaft is installed within the first through hole, and the lower half of the guide shaft... The system is equipped with a cylindrical rotor support that can move up and down. A reference positioning pin is positioned above the rotor support corresponding to the rotor. The diameter of the rotor support is smaller than the diameter of the first through hole. Below the rotor support is a frustum, the diameter of which is larger than the diameter of the first through hole. Several guide pillars are positioned below the frustum, and these guide pillars are movable up and down along with a connecting plate. A third through hole is located in the center of the connecting plate, and several support pillars are positioned around the third through hole. One end of each support pillar is fixed below the working platform, and the other end is fixed above the connecting plate. A pneumatic device is located below the connecting plate and is connected to the frustum through the third through hole. During magnetization: the positive and negative terminals of the magnetizer are connected to the U, V, and W phases of the designated magnetization point on the stator coil; the non-magnetic rotor to be magnetized is placed on the rotor support; the pneumatic device moves downward, driving the rotor to be inserted into the stator; the magnetizer jogs to perform the magnetization action; the pneumatic device moves upward, ejecting the rotor, completing the magnetization process. During flux testing: Connect the positive and negative probes of the fluxmeter to any two phases (U, V, W) of the stator coil; assemble the magnetized rotor to be tested onto the rotor support; the pneumatic device descends, driving the rotor to be inserted into the stator for magnetic line cutting; read and record the data collected by the fluxmeter; the pneumatic device ascends, ejecting the rotor, completing the test. This fixture features a dual-station design, allowing rotor magnetization and testing to be completed within the same fixture, eliminating the need to change stations.

[0004] However, this fixture also has some problems. Currently, the magnetizing coil is a fixed structure, requiring the selection of coils of appropriate specifications for different rotors. When changing product models, the magnetizing coil must be replaced manually, involving the removal of coil mounting bolts, related cables, and cooling water pipes. The coil typically weighs around 60kg, posing safety hazards during disassembly, necessitating the addition of auxiliary tooling to prevent it from falling. The coil also needs to be manually pulled out of the equipment onto a special trolley. Replacing a single coil takes approximately two hours, and frequent replacements easily strip the bolts, leading to incomplete coil fixation and eventual unusability. The short coil lifespan also fails to meet the demands of multi-model production and equipment stability. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the above-mentioned background technology and provide a rotor magnetizing device and magnetizing method.

[0006] The technical solution of the present invention is: a rotor magnetizing device, comprising:

[0007] Magnetizing workbench;

[0008] Multiple magnetizing trolleys, wherein each magnetizing trolley is a mobile trolley with a coil corresponding to the rotor to be magnetized fixed at its upper end and the coil is laid flat, and each magnetizing trolley corresponds to a coil of a certain specification;

[0009] A limiting structure is installed on the magnetization workbench to limit and fix the magnetization carriage after it enters the magnetization workbench.

[0010] A lifting structure is provided on the magnetization worktable to lift the coil on the magnetization carriage to the required magnetization height after the magnetization carriage has been positioned.

[0011] A clamping structure is provided on the upper and lower sides of the rotor to be magnetized on the magnetizing worktable, which enters the magnetizing worktable, and is used to clamp and fix the rotor to be magnetized in the coil after it enters the magnetizing worktable.

[0012] The surface magnetization workbench is used to receive the rotor that has been magnetized from the magnetization workbench and to test the rotor.

[0013] A gantry robot is used to transport a rotor to be magnetized to a magnetization worktable or to transfer a magnetized rotor from the magnetization worktable to a surface magnetization worktable.

[0014] According to the rotor magnetizing device provided in this application, the clamping structure includes:

[0015] The lower positioning rod is vertically arranged on the magnetizing worktable. The lower end of the lower positioning rod is driven to move vertically by a cylinder on the magnetizing worktable. The upper end of the lower positioning rod is equipped with a detachable lower tooling adapted to the rotor to be magnetized for fixing the lower end of the rotor.

[0016] The upper positioning rod is vertically positioned on the magnetizing worktable. The upper end of the upper positioning rod is driven to move vertically by a cylinder on the magnetizing worktable. The lower end of the upper positioning rod is equipped with a detachable upper tooling adapted to the rotor to be magnetized for fixing the upper end of the rotor.

[0017] According to the rotor magnetizing device provided in this application, the lifting structure includes:

[0018] The lifting support is a support installed on the magnetizing workbench and driven by a cylinder on the magnetizing workbench to rise and fall vertically. After the magnetizing trolley enters the magnetizing workbench, the lifting support is vertically lifted and supported on the lower end surface of the base plate at the lower end of the coil.

[0019] The clamping support is a support installed on the magnetizing workbench and driven by a cylinder on the magnetizing workbench to move vertically. After the magnetizing carriage enters the magnetizing workbench, the clamping support moves vertically downward and abuts against the upper surface of the bottom plate at the lower end of the coil.

[0020] A rotor magnetizing device according to this application further includes a transfer structure; the transfer structure includes:

[0021] The transfer track is a parallel track structure arranged horizontally on the magnetization worktable;

[0022] The transfer plate has its two ends slidably connected to the transfer rails on both sides, and the transfer plate is provided with several limiting grooves for engaging the rotor.

[0023] According to the rotor magnetizing device provided in this application, the magnetizing trolley includes a frame and a base plate; the frame is a movable frame with rollers installed at the lower end and screw holes provided at the upper end of the frame; the base plate is a flat plate that is fixed to the upper end of the frame by bolt and screw hole structure and extends beyond the frame on both sides, the base plate is fixedly connected to the coil and has through holes communicating with the coil.

[0024] According to the rotor magnetizing device provided in this application, the limiting structure includes:

[0025] The limiting seat is a structure that restricts the further movement of the magnetizing carriage when it reaches the designed moving position within the magnetizing workbench. A sensor is installed on the limiting seat.

[0026] Two sets of limiting blocks are placed on both sides of the accommodating space of the magnetizing trolley in the magnetizing workbench. One end of the limiting block is rotatable around the vertical axis and connected to the magnetizing workbench. The other end flips towards the magnetizing trolley after the sensor senses that the magnetizing trolley is in contact with the limiting seat, clamping and fixing the magnetizing trolley in the magnetizing workbench.

[0027] According to the rotor magnetizing device provided in this application, a guide wheel is installed on the frame of the magnetizing trolley; the guide wheel is rotatably connected to the magnetizing trolley about a vertical axis, and the guide wheel is rolled and connected to the side wall of the magnetizing worktable accommodating space when the magnetizing trolley enters the magnetizing worktable.

[0028] According to the rotor magnetizing device provided in this application, the surface magnetizing worktable includes:

[0029] A detection probe, used to detect a rotor that has been magnetized;

[0030] A transmission structure is provided for transferring a magnetized rotor, which is transferred by a gantry robot, to the detection area of ​​a detection probe for detection.

[0031] This application also provides a rotor magnetization method, which is operated according to the rotor magnetization device described above, including:

[0032] Select a coil that is compatible with the rotor to be magnetized, move the magnetizing carriage and the coil into the magnetizing worktable, limit and fix the magnetizing carriage, lift the coil to the required magnetizing height, and connect the coil cable.

[0033] The gantry robot handles the rotor to be magnetized to the magnetization worktable, and moves the rotor to be magnetized into the coil for magnetization.

[0034] After magnetization is completed, the gantry robot moves the rotor from the magnetization worktable to the surface magnetization worktable, where the surface magnetization worktable inspects the rotor.

[0035] According to the rotor magnetization method provided in this application, the method for limiting and fixing the magnetization trolley includes: manually pushing the frame of the magnetization trolley towards the accommodating space of the magnetization workbench, so that the guide wheels on both sides of the frame are close to the side walls of the accommodating space, until the magnetization trolley is completely inserted into the accommodating space and the frame contacts the limiting seat in the magnetization workbench.

[0036] According to the rotor magnetization method provided in this application, the method for limiting and fixing the magnetization trolley includes: after the trolley frame contacts the limiting seat in the magnetization workbench, the sensor on the limiting seat receives the contact signal and controls the limiting block in the magnetization workbench to flip towards the trolley frame, clamping and fixing the trolley frame between the limiting block and the limiting seat.

[0037] According to the rotor magnetization method provided in this application, the method of lifting the coil to the required magnetization height includes: after the magnetization trolley is fixed in place, driving the lifting support on the magnetization worktable located below the base plate, the lifting support drives the base plate and the coil on the base plate to move vertically to the required magnetization height, driving the limiting support on the magnetization worktable to move vertically downward until it abuts against the upper end face of the base plate, and cooperating with the lifting support below to fix the coil at the set magnetization height.

[0038] According to the rotor magnetization method provided in this application, the method of the gantry robot to transport the rotor to be magnetized to the magnetization worktable includes: the gantry robot clamps the rotor to be magnetized and moves it to the transfer plate on the magnetization worktable, so that the rotor is engaged in the limiting groove of the transfer plate, and the transfer plate is driven to move horizontally above the coil by the transfer track arranged on the magnetization worktable.

[0039] According to the rotor magnetization method provided in this application, the method of moving the rotor to be magnetized into the coil for magnetization includes: before the magnetization trolley enters the magnetization worktable, a lower fixture corresponding to the rotor to be magnetized is installed at the lower end of the lower positioning rod of the magnetization worktable, and an upper fixture corresponding to the rotor to be magnetized is installed at the lower end of the upper positioning rod of the magnetization worktable; after the rotor to be magnetized is transferred to the top of the coil, the lower positioning rod is vertically lifted until the lower fixture is fitted onto the lower end of the rotor, the upper positioning rod is vertically moved downward until the upper fixture is fitted onto the upper end of the rotor, and the transfer plate is horizontally moved away from the rotor; the upper positioning rod and the lower positioning rod cooperate to clamp the rotor and move downward until the rotor enters the coil for magnetization.

[0040] The advantages of this application are: 1. The rotor magnetizing device of this application is equipped with a magnetizing trolley, which carries the coil. The coil can be replaced at any time as needed, and the coil is easy to transport and move. This solves the problem that the coil is heavy and difficult to transport. At the same time, this application can easily fix the rotor to be magnetized, which facilitates magnetization and surface magnetization detection. The rotor magnetization and surface magnetization detection are fully automated. The whole process does not require personnel to be on duty. The degree of automation and intelligence is extremely high, which greatly improves the efficiency of rotor magnetization processing.

[0041] 2. This application uses a clamping structure to clamp the rotor, which can effectively limit and fix the rotor to be magnetized, ensuring that the rotor to be magnetized and the magnetizing coil are in a set relative positional relationship. It can meet the positional accuracy requirements between the rotor and the coil during the magnetization process, and is compatible with the magnetization requirements of various rotor specifications and models. It has a very wide range of applications and the adjustment method is also very simple.

[0042] 3. This application features a lifting structure on the magnetization workbench, which includes a lifting support and a clamping support. The lifting support can lift the coil on the magnetization carriage to the set magnetization height, ensuring accurate magnetization of the coil to be magnetized. The clamping support works with the lifting support to clamp and stabilize the coil, ensuring no shaking occurs during magnetization and improving magnetization accuracy. At the same time, the lifting support and clamping support can adjust the coil height, thus adapting to the magnetization requirements of coils of different specifications. The overall operation is simple, convenient, and widely applicable.

[0043] 4. This application provides a transfer structure on the magnetization worktable. The transfer structure is used in conjunction with the gantry robot to facilitate the transfer of the rotor to be magnetized to the magnetization worktable, and also to facilitate the transfer of the magnetized rotor out of the magnetization worktable for the gantry robot to grasp. The transfer structure improves the efficiency of rotor transfer, greatly facilitates operation, and simplifies the action and structure of the gantry robot.

[0044] 5. The magnetizing trolley of this application has a simple structure and a very convenient way of positioning and bearing the coil, which facilitates the transfer and movement of the coil, greatly facilitates the movement and replacement of the coil, improves the working efficiency of the entire rotor magnetization, simplifies the rotor magnetization process, and makes the disassembly and connection of the coil extremely convenient.

[0045] 6. This application provides a limiting structure on the magnetization worktable. The limiting structure is used to limit and fix the magnetization carriage that enters the magnetization worktable, so that the magnetization carriage and the coil are positioned horizontally in the magnetization worktable, which facilitates the subsequent adjustment of the coil height. The limiting structure greatly improves the coil positioning accuracy and facilitates operation.

[0046] 7. This application has guide wheels installed on the frame of the magnetizing carriage. The guide wheels facilitate the entry of the frame of the magnetizing carriage into the magnetizing workbench. After the frame enters the magnetizing workbench, it can be initially positioned to ensure that the coil is in a proper horizontal position in the magnetizing workbench. It also facilitates the subsequent positioning and fixing of the frame by the limiting structure.

[0047] 8. The magnetic worktable of this application has a simple structure and is easy to use. It only requires the gantry robot to transfer the rotor to the transmission structure, and the transmission structure can then transfer the magnetized rotor to the detection probe for detection. The operation is fully automated and the overall operation is very convenient.

[0048] 9. This application also provides a method for magnetizing a rotor. The method of this application is very simple. It can be adapted to different rotor magnetization requirements by changing the coil. The replacement and movement of the coil is extremely convenient. It can perform magnetization operations on rotors of various specifications on the magnetization workbench. It has excellent applicability and greatly expands the scope of application. The overall operation is simple and greatly improves the efficiency of rotor magnetization.

[0049] 10. The positioning method of the magnetizing cart in this application is very simple. The horizontal positioning of the magnetizing cart is achieved through positioning in two directions. After the guide wheels enter the accommodating space, the horizontal first direction of the magnetizing cart is automatically limited. The operation method is very simple and convenient.

[0050] 11. The limiting and fixing method of the magnetizing carriage in this application is very simple. When the magnetizing carriage enters the magnetizing worktable, the sensor on the limiting seat is triggered, and the magnetizing carriage can be sensed to enter the position, that is, it moves into the horizontal second upward position, and then drives the limiting block to rotate. The limiting block clamps and fixes the frame of the magnetizing carriage between the limiting block and the limiting seat, thus completing the positioning and fixing. The whole operation is fully automated.

[0051] 12. After the horizontal limit of the coil is fixed, the vertical height of the coil is adjusted to ensure that the coil reaches the required magnetization height and the relative position of the coil and the rotor reaches the required accuracy, so that the rotor can complete the magnetization operation well. The adjustable coil height can also be adapted to different rotor magnetization requirements, making it extremely versatile.

[0052] 13. The rotor transfer method of this application is very simple. The rotor is transferred into and out of the magnetization worktable by a transfer plate. The overall operation is simple, the transfer efficiency is high, the movement of the gantry robot is reduced, and the complexity of the entire rotor magnetization is greatly reduced.

[0053] 14. After the rotor enters the magnetization worktable, this application clamps the rotor and can accurately adjust the height of the rotor, so that the relative position between the rotor and the coil is precisely adjusted to the design position, which improves the adjustment accuracy of rotor magnetization. Moreover, the entire clamping and adjustment process is simple and extremely convenient to use.

[0054] The rotor magnetizing device of this application has a simple structure, and the coil replacement and movement are extremely convenient. It can be adapted to the magnetizing requirements of rotors of various specifications, meet the relative position accuracy requirements between the rotor and the coil during the magnetizing process, and greatly improve the efficiency of rotor magnetization. It has great promotional value. Attached Figure Description

[0055] Figure 1 : An axial view of the magnetization worktable of this application;

[0056] Figure 2: Front view of the magnetization worktable of this application;

[0057] Figure 3 : An axial view of the magnetic worktable of this application;

[0058] Figure 4 Side view of the magnetizing trolley of this application;

[0059] Figure 5 : Front view of the magnetizing cart of this application;

[0060] Figure 6 : Axial view of the magnetizing trolley entering the magnetizing worktable in this application;

[0061] Figure 7 : A schematic diagram of the arrangement structure of the limiting block and the limiting seat in this application;

[0062] Figure 8 : A schematic diagram of the truss robot transferring a rotor to a transfer plate according to this application;

[0063] Wherein: 1—Magnetic worktable;

[0064] 11—Lower positioning rod; 12—Upper positioning rod; 13—Lifting support; 14—Clamping support; 15—Limiting block; 16—Transfer track; 17—Transfer plate; 18—Limiting groove; 19—Limiting seat;

[0065] 2—Magnetic table; 21—Detection probe; 22—Transmission structure;

[0066] 3—Magnetic charging cart;

[0067] 31—Frame; 32—Floor plate; 33—Guide wheel;

[0068] 4—Gantry robot. Detailed Implementation

[0069] Embodiments of the present invention are described in detail below, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0070] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0071] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0072] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0073] This application relates to a rotor magnetizing device. This magnetizing device is used for magnetizing the rotor to be magnetized and for surface magnetic detection. Each rotor to be magnetized has a matching coil. When magnetizing each type of rotor is required, the corresponding coil is simply replaced. To facilitate coil replacement and movement, this application designs a dedicated magnetizing trolley. The coil is fixed on the magnetizing trolley, and each trolley corresponds to a specific coil specification. When a particular coil is needed, the corresponding magnetizing trolley is driven to move its load coil. Subsequently, the relative position of the coil and the rotor to be magnetized is adjusted to the designed magnetizing position. The coil is then energized to magnetize the rotor. After magnetization, the rotor is removed for surface magnetic detection to determine if the magnetization requirements have been met. This application allows for coil replacement to adapt to different rotor magnetization requirements. The adjustment of the coil and rotor during the magnetization process is very convenient and highly precise. Furthermore, this application exhibits a high degree of automation and intelligence.

[0074] Specifically, such as Figures 1-8As shown, the rotor magnetizing device of this application includes a magnetizing worktable 1, a magnetizing trolley 3, a limiting structure, a lifting structure, a clamping structure, a surface magnetizing worktable 2, and a gantry robot 4. The magnetizing worktable 1 is the position for magnetizing the rotor. The magnetizing worktable 1 includes a lower frame and an upper support. A receiving space is provided on one side of the frame, and the entire frame forms a U-shaped structure with one side opening, which facilitates the magnetizing trolley 3 and the coil to enter the receiving space from the side. The support is installed on the top of the frame. Multiple magnetizing trolleys 3 are mobile trolleys with coils corresponding to the rotor to be magnetized fixed at their upper ends and the coils laid flat. Each magnetizing trolley 3 corresponds to a coil of a certain specification. The trolley 3 is a structure for transporting and moving the coil, facilitating operator handling and replacement of the coil. The coil in this application has a ring-shaped structure with an interface for connection to the cable of the magnetization equipment. The coil and the magnetization trolley 3 are in one-to-one correspondence, and are completely fixed together. The limiting structure is installed on the magnetization workbench 1 to limit and fix the magnetization trolley 3 after it enters the workbench 1. The limiting structure is used to limit and fix the magnetization trolley 3 to a predetermined position within the magnetization workbench 1, that is, to initially position the coil on the magnetization trolley 3 in the horizontal direction. After the magnetization trolley 3 enters the accommodating space of the magnetization workbench 1, the limiting structure... The positioning structure fixes the magnetizing carriage 3, restricting its movement; the lifting structure, located on the magnetizing worktable 1, lifts the coil on the magnetizing carriage 3 after it has been positioned, so that the coil reaches the required magnetization height; the limiting structure limits and fixes the magnetizing carriage 3 in the horizontal direction. Therefore, when the limiting structure fixes the magnetizing carriage 3, the coil on the magnetizing carriage 3 is also limited in the horizontal direction. Then, the lifting structure is used to adjust the coil vertically, so that the coil is at the set magnetization height, which facilitates the subsequent magnetization operation of the rotor; the clamping structure, located on the magnetizing worktable 1, is positioned above and below the rotor to be magnetized as it enters the magnetizing worktable 1. On both sides, there are clamping and fixing structures for holding the rotor to be magnetized within the coil after it enters the magnetization worktable 1. The clamping structure is used to hold and fix the rotor, while also adjusting the height of the rotor to ensure that the relative position of the rotor and the coil meets the design requirements. The surface magnetization worktable 2 is used to receive the rotor that has been magnetized from the magnetization worktable 1 and to inspect the rotor to check whether the rotor that has completed the magnetization operation meets the magnetization requirements. The gantry robot 4 is used to transport the rotor to be magnetized to the magnetization worktable 1 or to transfer the magnetized rotor from the magnetization worktable 1 to the surface magnetization worktable 2. The gantry robot 4 is a rotor transport device used to perform rotor transfer operations.

[0075] In actual operation, select the coil and magnetizing carriage 3 that are compatible with the rotor to be magnetized. The coil and magnetizing carriage 3 are one-to-one, so there is no need for manual handling. After selecting the coil, you only need to manually push the magnetizing carriage 3 to move. Manually drive the magnetizing carriage 3 to move into the accommodating space of the magnetizing workbench 1. Use the limiting structure on the magnetizing workbench 1 to limit and fix the magnetizing carriage 3, and complete the positioning of the coil in the horizontal direction. Use the lifting structure on the magnetizing workbench 1 to lift the coil and magnetizing carriage 3 to the required magnetization height, and complete the adjustment of the coil in height. At this point, the position adjustment of the coil is completed. Then connect the cable of the magnetizing equipment to the interface of the coil, and the coil arrangement is completed.

[0076] The gantry robot 4 transports the rotor to be magnetized to the magnetization worktable 1, and moves the rotor into the coil for magnetization.

[0077] After magnetization is completed, the gantry robot 4 moves the rotor from the magnetization worktable 1 to the surface magnetization worktable 2, where the surface magnetization worktable 2 performs inspection on the rotor.

[0078] In some embodiments of this application, the structure of the magnetizing cart 3 described above has been optimized, such as... Figures 4-6 As shown, the magnetizing trolley 3 in this embodiment includes a frame 31 and a base plate 32. The frame 31 is a frame structure formed by four columns. The lower end of the frame 31 is equipped with rollers for easy movement. The frame 31 is equipped with a handle for easy gripping by the operator. The upper end of the frame 31 is equipped with screw holes. The base plate 32 is fixed to the upper end of the frame 31 by bolts and screw holes and extends beyond the frame 31 on both sides. The extension of the base plate 32 beyond the upper end of the frame 31 on both sides is to facilitate subsequent lifting and adjustment of the coil. The base plate 32 is fixedly connected to the coil and has through holes communicating with the coil. These through holes facilitate the vertical movement of the rotor.

[0079] In addition, in this embodiment, guide wheels 33 are provided on both sides of the frame 31 in the lateral direction. The guide wheels 33 are rotatably connected to the frame 31 around the vertical axis. The distance between the two guide wheels 33 is consistent with the lateral width of the accommodating space. When the magnetizing trolley 3 enters the accommodating space of the magnetizing workbench 1, the guide wheels 33 roll and connect to the side wall of the accommodating space of the magnetizing workbench 1. That is to say, when the frame 31 enters the accommodating space through the guide wheels 33, the guide wheels 33 will automatically adjust the lateral position of the frame 31, so that the frame 31 automatically completes the horizontal positioning with the accommodating space.

[0080] In some other embodiments of this application, the limiting structure described above has been optimized. In this embodiment, the limiting structure limits and fixes the horizontal longitudinal position of the magnetizing carriage 3, and the guide wheel 33 limits the horizontal lateral position of the magnetizing carriage 3. Through the cooperation of the guide wheel 33 and the limiting structure, the positioning and fixing of the magnetizing carriage 3 in the horizontal direction can be completed.

[0081] like Figure 1 and 7 As shown, the limiting structure in this embodiment includes a limiting seat 19 and a limiting block 15. The limiting seat 19 is a structure that restricts the further movement of the magnetizing carriage 3 when it reaches the designed moving position inside the magnetizing workbench 1. In fact, the limiting seat 19 is located on the inner side of the longitudinal direction of the accommodating space. A sensor is installed on the limiting seat 19. When the frame 31 of the magnetizing carriage 3 enters the accommodating space and moves longitudinally into place, that is, the column of the frame 31 contacts the limiting seat 19, the sensor on the limiting seat 19 senses the contact between the column and the limiting seat 19, proving that the longitudinal movement of the frame 31 is in place at this time.

[0082] Two sets of limiting blocks 15 are placed on both sides (horizontal sides) of the accommodating space where the magnetizing carriage 3 is located in the magnetizing workbench 1. A support part is provided in the accommodating space of the magnetizing workbench 1. One end of the limiting block 15 is rotatably connected to the support part around the vertical axis. A cylinder, hydraulic cylinder or motor is provided on the support part for driving the limiting block 15 to rotate around the vertical axis. The limiting block 15 has an open and close structure. Before the magnetizing carriage 3 enters the accommodating space, the limiting block 15 is in the open state. When the magnetizing carriage 3 enters the accommodating space and contacts the limiting seat 19, it receives a signal from the sensor and controls the limiting block 15 to rotate around the vertical axis to form a closed state. The limiting block 15 and the corresponding limiting seat 19 are placed on both sides of the vertical column of the frame 31 to limit and fix the frame 31 in the horizontal longitudinal direction.

[0083] In this embodiment, the limiting seat 19 and the limiting block 15 are in one-to-one correspondence. Each set of limiting structures includes a limiting seat 19 and a limiting block 15. Two sets of limiting structures are provided in the accommodating space, respectively placed on the two lateral sides of the accommodating space, corresponding to the two uprights of the frame 31. The limiting structure only limits and fixes the frame 31 in the horizontal longitudinal direction, and does not limit it in the horizontal lateral and vertical directions.

[0084] like Figure 7As shown, this embodiment has two guide rails installed within the accommodating space. The two guide rails are positioned on the lateral sides of the accommodating space and are arranged longitudinally. The inner lateral side of the guide rail is a sliding surface that contacts the guide wheel 33. The guide rail restricts the guide wheel 33 from moving longitudinally. The portion of the guide rail extending out of the accommodating space folds outward laterally to form a constricted structure, facilitating the entry of the magnetizing trolley 3 into the space between the guide rails. The limiting block 15 and the limiting seat 19 are both installed on the guide rails. Each guide rail has a set of limiting structures at its end extending into the accommodating space. In this embodiment, the limiting block 15 uses a rotating opening and closing method for limiting. In practical applications, it is not limited to this limiting method. A telescopic rod structure that can extend and retract laterally can also be used. That is, when the frame enters the accommodating space, the frame column is pressed against the sensor on the limiting seat 19. The telescopic rod receives the corresponding control command and extends laterally to the other longitudinal side of the column that contacts the limiting block 15, thus cooperating with the limiting block 15 to restrict the frame within the accommodating space.

[0085] In actual operation, the operator holds the handle on the frame 31 and pushes the magnetizing trolley 3 into the accommodating space on the magnetizing workbench 1. The guide wheels 33 on both sides of the frame 31 abut against the side walls on both sides of the accommodating space. Under the action of the guide wheels 33, the frame 31 completes its positioning in the horizontal direction and the position on the magnetizing workbench 1. Continue to push the magnetizing trolley 3 longitudinally until the upright of the frame 31 of the magnetizing trolley 3 contacts the limiting seat 19 on the longitudinal inner side of the accommodating space. The sensor on the limiting seat 19 senses the movement of the trolley. After the column 31 contacts the limiting seat 19, it emits a sensing signal. After receiving the sensing signal, the control system sends a control signal to the limiting block 15. The drive structure on the support drives the limiting block 15 to rotate around the vertical axis and switch to the closed state. The limiting block 15 is clamped on one side of the column, and the limiting seat 19 is attached to the other side of the column, clamping and fixing the magnetizing carriage 3 in the accommodating space, thus completing the limiting of the magnetizing carriage 3 in the horizontal longitudinal direction. At this point, the magnetizing carriage 3 has completed the horizontal positioning.

[0086] In a preferred embodiment of this application, the lifting structure described above is optimized. The lifting structure elevates the coil, positioning its height to ensure it is at the required magnetization height. Furthermore, the lifting structure allows for adjustment of the coil height to accommodate the magnetization requirements of rotors of different specifications. Specifically, as... Figure 1 , 2As shown in Figure 6, the lifting structure of this embodiment includes a lifting support 13 and a clamping support 14. The lifting support 13 is a support that is installed on the magnetizing worktable 1 and is driven to move vertically by a cylinder on the magnetizing worktable 1. After the magnetizing carriage 3 enters the magnetizing worktable 1, the lifting support 13 is vertically lifted and supported on the lower end surface of the base plate 32 at the lower end of the coil. The clamping support 14 is a support that is installed on the magnetizing worktable 1 and is driven to move vertically by a cylinder on the magnetizing worktable 1. After the magnetizing carriage 3 enters the magnetizing worktable 1, the clamping support 14 is vertically moved downward and pressed against the upper end surface of the base plate 32 at the lower end of the coil.

[0087] In this embodiment, the lifting support 13 and the clamping support 14 are arranged opposite each other in a vertical direction. In order to ensure stable driving of the coil lifting and lowering, four sets of lifting structures are provided on the magnetizing worktable 1. The four sets of lifting structures are placed at the four corners of the base plate 32.

[0088] In actual operation, since the magnetizing trolley 3 enters the accommodating space along the horizontal longitudinal direction, the base plate 32 enters the magnetizing worktable 1 along the longitudinal direction. The base plate 32 directly enters between the lifting support 13 and the clamping support 14 along the horizontal longitudinal direction. That is, before the magnetizing trolley 3 enters the magnetizing worktable 1, the lifting support 13 is controlled to move downward to the maximum position, and the clamping support 14 is controlled to move upward to the maximum position to ensure that the base plate 32 does not interfere with the structure when it enters between the lifting support 13 and the clamping support 14; after the base plate 32 enters the lifting support 13, the base plate 32 enters the accommodating space. After the support 13 and clamping support 14 are positioned, the magnetizing trolley 3 completes the horizontal limit and drives the lifting support 13 and clamping support 14 to move towards each other. That is, the lifting support 13 moves vertically upward until it abuts against the lower end face of the base plate 32, and the clamping support 14 moves vertically downward until it abuts against the upper end face of the base plate 32, thus completing the clamping of the base plate 32 by the lifting support 13 and clamping support 14. Then, the lifting support 13 and clamping support 14 are controlled to work together to adjust the height of the coil to the set height, thus completing the height adjustment of the coil.

[0089] In a further embodiment of this application, the clamping structure described above is optimized. This clamping structure is used for bearing and adjusting the rotor, such as... Figure 1 , 2As shown in Figure 6, the clamping structure includes a lower positioning rod 11 and an upper positioning rod 12. The lower positioning rod 11 is vertically arranged on the magnetizing worktable 1. The lower end of the lower positioning rod 11 is driven to move vertically by a cylinder on the magnetizing worktable 1. The upper end of the lower positioning rod 11 is equipped with a detachable lower tooling adapted to the rotor to be magnetized for fixing the lower end of the rotor. The upper positioning rod 12 is vertically arranged on the magnetizing worktable 1. The upper end of the upper positioning rod 12 is driven to move vertically by a cylinder on the magnetizing worktable 1. The lower end of the upper positioning rod 12 is equipped with a detachable upper tooling adapted to the rotor to be magnetized for fixing the upper end of the rotor.

[0090] The lower positioning rod 11 and the upper positioning rod 12 are positioned on the upper and lower sides of the rotor to be magnetized, respectively. Before the magnetizing carriage 3 enters the magnetizing worktable 1, the lower positioning rod 11 is lowered vertically to its lowest position, meaning the upper end of the lower positioning rod 11 is below the base plate 32. This prevents interference between the magnetizing carriage 3 and the lower positioning rod 11 when the magnetizing carriage 3 enters the magnetizing worktable 1. Similarly, before the magnetizing carriage 3 enters the magnetizing worktable 1, the upper positioning rod 12 is moved vertically to its highest position. This avoids interference with the magnetizing carriage 3 and also prevents interference with the rotor's entry into the magnetizing worktable 1 during rotor transfer. After the magnetizing carriage 3 enters the magnetizing worktable 1 and completes horizontal and vertical positioning, the rotor enters the magnetizing worktable 1 and is directly above the coil. This drives the lower positioning rod 11 to move vertically, passing through the through hole in the base plate 32 and the wire. The coil supports the rotor, which is arranged vertically. A lower tooling is provided at the upper end of the lower positioning rod 11. The upper end of the lower tooling has a sleeve that can be fitted onto the lower end of the rotor shaft. The lower end of the lower tooling is detachably connected to the upper end of the lower positioning rod 11 (using a screw connection). The sleeve at the upper end of the lower tooling moves to fit together with the lower end of the rotor shaft. An upper tooling is provided at the lower end of the upper positioning rod 12. The lower end of the upper tooling has a point that can abut against the upper end of the rotor shaft. The upper end of the upper tooling is detachably connected to the lower end of the upper positioning rod 12 (using a screw connection). The upper tooling moves downwards with the upper positioning rod 12 until the point at the lower end of the upper tooling abuts against the upper end of the rotor shaft. At this point, the upper positioning rod 12 and the lower positioning rod 11 complete the clamping of the rotor. The upper positioning rod 12 and the lower positioning rod 11 cooperate to clamp the rotor downwards until the rotor and coil reach the designed relative position.

[0091] The structure of the lower and upper tooling is not limited to that of a sleeve and a center; any structure that can securely clamp the rotor is acceptable. In this embodiment, multiple lower toolings of different specifications are provided on the magnetizing worktable, each corresponding to different rotor clamping requirements.

[0092] In some embodiments of this application, the rotor transfer structure is optimized. The rotor transfer structure includes a gantry manipulator 4 and a transfer structure. The gantry manipulator 4 is used to transfer the rotor to be magnetized onto the transfer structure or to transfer the magnetized rotor from the transfer structure onto the surface magnetization worktable 2.

[0093] The transfer structure includes a transfer track 16 and a transfer plate 17. The transfer track 16 is a parallel track structure arranged horizontally on the magnetization workbench 1. There are two transfer tracks 16, located on the horizontal sides above the frame. The transfer track 16 itself is a track structure arranged in the horizontal longitudinal direction. The transfer track 16 is located on the opposite side of the frame opening (the opening side is used for the entry and exit of the magnetization trolley 3, and the opposite side of the opening facilitates the entry and exit of the rotor, thus avoiding mutual interference). The two ends of the transfer plate 17 are slidably connected to the transfer tracks 16 on both sides. The transfer plate 17 is provided with several limiting grooves 18 for engaging the rotor. The limiting groove 18 is a U-shaped groove with an opening on the side away from the gantry robot 4. The lower shaft of the rotor is engaged in the limiting groove 18, and the middle part of the rotor rests on the upper end face of the transfer plate 17.

[0094] During the actual transfer of the rotor, the gantry robot 4 transfers the rotor to be magnetized onto the transfer plate 17, and engages the lower shaft of the rotor into the limiting groove 18, so that the rotor can be stably fixed on the transfer plate 17. The transfer plate 17 is driven to move along the transfer track 16 to the top of the coil, so that the rotor shaft and the lower coil are coaxial, or in other words, the rotor is coaxial with the upper positioning rod 12 and the lower positioning rod 11. After moving into position, the upper positioning rod 12 and the lower positioning rod 11 clamp the rotor, so that the rotor is fixed between the upper positioning rod 12 and the lower positioning rod 11. The transfer plate 17 moves along the transfer track 16 to one side of the gantry robot 4, the limiting groove 18 disengages from the rotor shaft, and the transfer plate 17 moves to the initial position, completing the rotor transfer operation.

[0095] After the rotor is magnetized, the upper positioning rod 12 and the lower positioning rod 11 clamp the rotor and adjust its height to reach the required transfer height. The transfer plate 17 moves along the transfer track 16 to one side of the rotor until the limiting groove 18 is engaged with the shaft at the bottom of the rotor. The upper positioning rod 12 and the lower positioning rod 11 move up and down respectively, releasing the rotor. The rotor is transferred to the transfer plate 17, and then the transfer plate 17 carries the rotor along the transfer track 16 to one side of the gantry robot 4. The transfer plate 17 moves to the initial position to facilitate the gantry robot 4 to grasp the rotor.

[0096] In other embodiments of this application, the above-described magnetic workbench 2 has been optimized, specifically, as follows: Figure 3As shown, the surface magnetization worktable 2 in this embodiment includes a detection probe 21 and a transmission structure. The detection probe 21 is used to detect the rotor that has been magnetized. The transmission structure is used to transfer the magnetized rotor transferred by the gantry robot 4 to the detection area of ​​the detection probe 21 for detection.

[0097] During actual testing, the gantry robot 4 transfers the rotor on the transfer plate 17 to the transmission structure. A fixed seat is placed on the transmission structure, and the shaft at the bottom of the rotor is inserted into the fixed seat and restricted to a vertical position by the fixed seat. Under the action of the transmission structure, the rotor is moved to the detection area of ​​the detection probe 21 for detection. After the detection is completed, the rotor is moved to the initial position under the drive of the transmission structure, which facilitates the gripping of the rotor. Qualified products and unqualified products are placed in different positions respectively.

[0098] When magnetizing the rotor, the rotor magnetizing device of this application selects a coil and a magnetizing trolley 3 that are compatible with the rotor to be magnetized. The magnetizing trolley 3 is manually driven to move into the accommodating space of the magnetizing workbench 1. The guide wheels 33 on both sides of the trolley frame 31 abut against the side walls on both sides of the accommodating space. Under the action of the guide wheels 33, the trolley frame 31 is positioned in the horizontal direction and the position of the magnetizing workbench 1. The magnetizing trolley 3 is continued to be pushed longitudinally until the upright of the trolley frame 31 contacts the limiting seat 19 on the longitudinal inner side of the accommodating space, and the limiting is achieved. After the sensor on seat 19 detects the contact between the upright of frame 31 and the limiting seat 19, it sends a sensing signal. After receiving the sensing signal, the control system sends a control signal to the limiting block 15. The drive structure on the support drives the limiting block 15 to rotate around the vertical axis and switch to the closed state. The limiting block 15 is clamped on one longitudinal side of the upright, and the limiting seat 19 is attached to the other side of the upright, clamping and fixing the magnetizing trolley 3 in the accommodating space, thus completing the limiting of the magnetizing trolley 3 in the horizontal longitudinal direction. At this point, the magnetizing trolley 3 has completed the horizontal positioning.

[0099] After the magnetizing trolley 3 enters the magnetizing workbench 1, the base plate 32 enters between the lifting support 13 and the clamping support 14. The magnetizing trolley 3 completes the horizontal limit and drives the lifting support 13 and the clamping support 14 to move towards each other. That is, the lifting support 13 moves vertically upward until it abuts against the lower end face of the base plate 32, and the clamping support 14 moves vertically downward until it abuts against the upper end face of the base plate 32. The lifting support 13 and the clamping support 14 clamp the base plate 32. Then, the lifting support 13 and the clamping support 14 work together to adjust the height of the coil to the set height, thus completing the height adjustment of the coil. The cable of the magnetizing equipment is connected to the interface of the coil, and the coil arrangement is completed.

[0100] The gantry robot 4 transfers the rotor to be magnetized onto the transfer plate 17, and engages the lower shaft of the rotor into the limiting groove 18, so that the rotor can be stably fixed on the transfer plate 17. It drives the transfer plate 17 to move along the transfer track 16 to the top of the coil, so that the shaft of the rotor is coaxial with the lower coil, or in other words, the rotor is coaxial with the upper positioning rod 12 and the lower positioning rod 11.

[0101] After the transfer plate 17 moves the rotor into position, it drives the lower positioning rod 11 to move vertically. The lower positioning rod 11 passes through the through hole of the base plate 32 and the coil to support the rotor. The upper end sleeve of the lower tooling at the upper end of the lower positioning rod 11 moves to be sleeved with the lower end of the rotor shaft. The lower end tip of the upper tooling at the lower end of the upper positioning rod 12 presses against the upper end of the rotor shaft. At this point, the upper positioning rod 12 and the lower positioning rod 11 complete the clamping of the rotor. The upper positioning rod 12 and the lower positioning rod 11 cooperate to clamp the rotor and move it down until the rotor and the coil reach the designed relative position. The magnetizing equipment is turned on to energize the coil. After the coil is energized, the rotor is magnetized.

[0102] After magnetization is completed, the upper positioning rod 12 and the lower positioning rod 11 clamp the rotor and adjust the height of the rotor to reach the required transfer height. The transfer plate 17 moves along the transfer track 16 to one side of the rotor until the limiting groove 18 is engaged with the shaft at the bottom of the rotor. The upper positioning rod 12 and the lower positioning rod 11 move up and down respectively, releasing the rotor. The rotor is transferred to the transfer plate 17. Then the transfer plate 17 carries the rotor along the transfer track 16 to one side of the gantry robot 4. The transfer plate 17 moves to the initial position to facilitate the gantry robot 4 to grasp the rotor.

[0103] The gantry robot 4 transfers the rotor on the transfer plate 17 to the transmission structure. A fixed seat is placed on the transmission structure. The shaft of the rotor is inserted into the fixed seat and restricted to a vertical position by the fixed seat. Under the action of the transmission structure, the rotor is moved to the detection area of ​​the detection probe 21 for detection. After the detection is completed, the rotor is moved to the initial position under the drive of the transmission structure to facilitate the gripping of the rotor. Qualified products and unqualified products are placed in different positions respectively.

[0104] like Figure 5 As shown, the vertical direction of this application is Figure 5 The direction perpendicular to the paper, the lateral direction of this application Figure 5 In the left-right direction, the vertical direction of this application is... Figure 5 The up and down directions in the middle.

[0105] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A rotor magnetizing device, characterized in that: include: Magnetizing workbench (1); Multiple magnetizing trolleys (3), wherein each magnetizing trolley (3) is a mobile trolley with a coil corresponding to the rotor to be magnetized fixed at its upper end and the coil is laid flat, and each magnetizing trolley (3) corresponds to a coil of a certain specification. A limiting structure is installed on the magnetizing workbench (1) to limit and fix the magnetizing carriage (3) after it enters the magnetizing workbench (1); A lifting structure is provided on the magnetizing worktable (1) to lift the coil on the magnetizing carriage (3) after the magnetizing carriage (3) has been positioned so that the coil reaches the required magnetizing height. The clamping structure is located on the upper and lower sides of the rotor to be magnetized in the magnetizing worktable (1) after it enters the magnetizing worktable (1), and is used to clamp and fix the rotor to be magnetized in the coil after it enters the magnetizing worktable (1). Magnetizing worktable (2), which is used to receive the rotor that has been magnetized from the magnetizing worktable (1) and to test the rotor; A gantry robot (4) is used to transport a rotor to be magnetized to a magnetization worktable (1) or to transfer a magnetized rotor from the magnetization worktable (1) to a surface magnetization worktable (2).

2. The rotor magnetizing device as described in claim 1, characterized in that: The clamping structure includes: The lower positioning rod (11) is vertically arranged on the magnetizing worktable (1). The lower end of the lower positioning rod (11) is driven to move vertically by the cylinder on the magnetizing worktable (1). The upper end of the lower positioning rod (11) is equipped with a detachable lower tooling adapted to the rotor to be magnetized for fixing the lower end of the rotor. The upper positioning rod (12) is vertically arranged on the magnetizing worktable (1). The upper end of the upper positioning rod (12) is driven to move vertically by the cylinder on the magnetizing worktable (1). The lower end of the upper positioning rod (12) is equipped with a detachable upper tooling adapted to the rotor to be magnetized for fixing the upper end of the rotor.

3. The rotor magnetizing device as described in claim 1, characterized in that: The lifting structure includes: Lifting support (13) is a support that is installed on the magnetizing workbench (1) and driven by the cylinder on the magnetizing workbench (1) to rise and fall vertically. After the magnetizing trolley (3) enters the magnetizing workbench (1), the lifting support (13) is vertically lifted and supported on the lower end face of the base plate (32) at the lower end of the coil. The clamping support (14) is a support installed on the magnetizing workbench (1) and driven by a cylinder on the magnetizing workbench (1) to move vertically. After the magnetizing trolley (3) enters the magnetizing workbench (1), the clamping support (14) moves vertically downward and abuts against the upper surface of the bottom plate (32) at the lower end of the coil.

4. The rotor magnetizing device as described in claim 1, characterized in that: It also includes a transfer structure; the transfer structure includes: The transfer track (16) is a parallel track structure arranged horizontally on the magnetizing worktable (1); The transfer plate (17) has its two ends slidably connected to the transfer rails (16) on both sides, and the transfer plate (17) is provided with a number of limiting grooves (18) for engaging the rotor.

5. The rotor magnetizing device as described in claim 1, characterized in that: The magnetizing trolley (3) includes a frame (31) and a base plate (32); the frame (31) is a movable frame with rollers installed at the lower end, and the upper end of the frame (31) is provided with screw holes; the base plate (32) is a flat plate that is fixed to the upper end of the frame (31) by bolt and screw hole structure and extends beyond the frame (31) on both sides, the base plate (32) is fixedly connected to the coil and the base plate (32) is provided with through holes communicating with the coil.

6. The rotor magnetizing device as described in claim 5, characterized in that: The limiting structure includes: The limiting seat is a structure that restricts the further movement of the magnetizing carriage (3) when it reaches the designed moving position inside the magnetizing workbench (1). A sensor is installed on the limiting seat. Two sets of limiting blocks (15) are placed on both sides of the accommodating space of the magnetizing trolley (3) in the magnetizing workbench (1). One end of the limiting block (15) is rotatable around the vertical axis and connected to the magnetizing workbench (1). The other end flips towards the magnetizing trolley (3) after the sensor senses that the magnetizing trolley (3) is in contact with the limiting seat, clamping and fixing the magnetizing trolley (3) in the magnetizing workbench (1).

7. A rotor magnetization method, characterized in that: The rotor magnetization method is operated according to a rotor magnetization device as described in any one of claims 1 to 6, including: Select a coil that is compatible with the rotor to be magnetized, move the magnetizing carriage (3) and the coil into the magnetizing workbench (1), limit and fix the magnetizing carriage (3), lift the coil to the required magnetizing height, and connect the coil cable. The gantry robot (4) transports the rotor to be magnetized to the magnetization worktable (1) and moves the rotor to be magnetized into the coil for magnetization. After magnetization is completed, the gantry robot (4) moves the rotor from the magnetization worktable (1) to the surface magnetization worktable (2), and the surface magnetization worktable (2) tests the rotor.

8. The rotor magnetization method as described in claim 7, characterized in that: The method of lifting the coil to the required magnetization height includes: after the magnetization trolley (3) is fixed in place, the lifting support (13) on the magnetization worktable (1) and located below the base plate (32) is driven. The lifting support (13) drives the base plate (32) and the coil on the base plate (32) to move vertically to the required magnetization height. The limiting support on the magnetization worktable (1) is driven to move vertically downward until it abuts against the upper end face of the base plate (32). The lifting support (13) below is used to fix the coil at the set magnetization height.

9. The rotor magnetization method as described in claim 7, characterized in that: The method of the gantry manipulator (4) to transport the rotor to be magnetized to the magnetization worktable (1) includes: the gantry manipulator (4) clamps the rotor to be magnetized and moves it to the transfer plate (17) on the magnetization worktable (1), so that the rotor is engaged in the limiting groove (18) of the transfer plate (17), and the transfer plate (17) is driven to move horizontally above the coil by the transfer track (16) arranged on the magnetization worktable (1).

10. A rotor magnetization method as described in claim 9, characterized in that: The method of moving the rotor to be magnetized into the coil for magnetization includes: before the magnetization trolley (3) enters the magnetization workbench (1), a lower tooling corresponding to the rotor to be magnetized is installed at the lower end of the lower positioning rod (11) of the magnetization workbench (1), and an upper tooling corresponding to the rotor to be magnetized is installed at the lower end of the upper positioning rod (12) of the magnetization workbench (1); after the rotor to be magnetized is transferred to the top of the coil, the lower positioning rod (11) is lifted vertically until the lower tooling is fitted onto the lower end of the rotor, the upper positioning rod (12) is moved vertically downward until the upper tooling is fitted onto the upper end of the rotor, and the transfer plate (17) moves horizontally to detach from the rotor; the upper positioning rod (12) and the lower positioning rod (11) cooperate to clamp the rotor and move downward until the rotor enters the coil for magnetization.

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