Single-station magnetization detection device for rotor magnetization

Abstract

This invention provides a single-station magnetization and testing device for rotor magnetization, comprising a machine base, a frame, a magnetization box, a lifting and clamping mechanism, and a testing mechanism. The frame is erected on the machine base, and the magnetization box is mounted on the machine base, having a vertically penetrating magnetization channel. The lifting and clamping mechanism includes an upper clamping mechanism and a lower clamping mechanism. The upper clamping mechanism is mounted on the frame and includes a lower, liftable, and rotatable abutment shaft. The lower clamping mechanism is mounted below the surface of the machine base and includes a higher, liftable upper abutment shaft. The upper and lower ends of the rotor are clamped by the lower and upper abutment shafts, moving the rotor to a preset height position within the magnetization channel for magnetization. The testing mechanism is mounted on the machine base and located on one side of the magnetization box. It includes a testing head for detecting the magnetization flux of the rotor after it has been magnetized in the magnetization box and has been raised to the preset position. The single-station magnetization and testing device provided by this invention can efficiently magnetize and test rotors.

Description

Technical Field

[0001] This invention relates to the field of magnetization technology, and more specifically to a single-station magnetization detection device for rotor magnetization. Background Technology

[0002] During the manufacturing process, the motor rotor needs to be magnetized to give it magnetic properties, such as... Figure 13 The rotor shown has a main body section 101 and end sections 102 formed at both ends of the main body section 101. The end sections 102 are used for assembly, and their diameter is smaller than that of the main body section 101. The end sections have slots 103 for connecting to other components during rotor installation or for locking and positioning the rotor during magnetization. During magnetization, the rotor is placed entirely into a magnetization device, and the magnetization amount is then measured. Current rotor magnetization and testing processes are generally divided into two stations: magnetization at the magnetization station and then the rotor flows to the testing station to measure the magnetization amount. Common layouts include assembly lines or rotary tables. These structures occupy a significant amount of space, and each station requires a corresponding positioning component, resulting in a large number of functional components required. Summary of the Invention

[0003] In view of the above, it is necessary for the present invention to provide a single-station magnetization and detection device that has a simplified structure, saves space, and integrates rotor magnetization and detection.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A single-station magnetization detection device for rotor magnetization includes a machine base, a frame, a magnetization box, a lifting and clamping mechanism, and a detection mechanism. The frame is erected on the machine base, and the magnetization box is mounted on the machine base, having a magnetization channel that penetrates vertically. The lifting and clamping mechanism includes an upper clamping mechanism and a lower clamping mechanism. The upper clamping mechanism is mounted on the frame and includes a lower abutment shaft that can be lifted and rotated, positioned directly above the magnetization channel. The lower clamping mechanism is mounted below the surface of the machine base and includes a higher upper abutment shaft, positioned directly below the magnetization channel. The upper and lower ends of the rotor are clamped by the lower and upper abutment shafts, moving the rotor to a preset height position within the magnetization channel for magnetization. The detection mechanism is mounted on the machine base and located on one side of the magnetization box. It includes a laterally movable detection head, used to detect the magnetization flux of the rotor when it is raised to the preset position after being magnetized in the magnetization box.

[0006] The beneficial effects of this invention are as follows:

[0007] The single-station magnetization detection device for rotor magnetization provided by the present invention clamps the rotor at a corresponding height position through the lifting clamping mechanism, so that the rotor can be magnetized at the corresponding magnetization position height. After magnetization is completed, the rotor is raised to the corresponding detection mechanism, and the magnetization amount is detected by the detection mechanism. Magnetization and detection can be completed in one station, which greatly simplifies the structure of the device, saves layout space, and greatly simplifies the device structure. Attached Figure Description

[0008] Figure 1 A first-person perspective perspective view of a single-station magnetization detection device used for rotor magnetization;

[0009] Figure 2 A second-view perspective perspective of a single-station magnetization detection device used for rotor magnetization;

[0010] Figure 3 A 3D view of the lifting clamping mechanism in conjunction with the magnetizing box and the detection mechanism;

[0011] Figure 4 This is a partial view of the upper clamping mechanism;

[0012] Figure 5 This is a partial sectional view of the upper clamping mechanism;

[0013] Figure 6 This is an exploded view of the upper clamping mechanism;

[0014] Figure 7 This is a cross-sectional view of the upper clamping mechanism;

[0015] Figure 8 This is a partial sectional view of the upper clamping mechanism from another perspective;

[0016] Figure 9 A 3D view of the magnetizing box installed on the top plate of the machine.

[0017] Figure 10 This is a three-dimensional view of the lower clamping mechanism;

[0018] Figure 11 A 3D view of the testing organization;

[0019] Figure 12 A perspective view of a single-station magnetization testing device with an organic cover installed;

[0020] Figure 13 This is a three-dimensional view of the rotor.

[0021] Explanation of reference numerals in the attached figures:

[0022] Machine base 10; Frame 20; Magnetizing box 30; Detection mechanism 80; Lower abutment shaft 42; Upper abutment shaft 74; Detection head support 82; Table panel 11; Slide rail 12; Guide column 21; Top plate 22; Lifting plate 41; Lower abutment shaft 42; Lower abutment shaft fixing seat 43; Drive mechanism 44; Seat body 431; Bearing seat 432; Through shaft hole 4311; Lower shaft body 421; Upper shaft body 422; Bearing hole 4211; Center hole 4212; Abutment column 51; Pressure cap 52; Bearing 53; Snap ring 54; Locking groove 4213 ; receiving groove 521; snap-fit ​​rod 55; horizontal connecting block 56; spring 57; guide hole 4214; column 61; horizontal pin 62; sensing ring 63; snap-fit ​​sensor 64; axial groove 4221; longitudinal groove 4222; crimping rod 65; elastic guide sleeve 66; sensing block 67; crimping sensor 68; anti-rotation mechanism 45; fixed plate 71; fixed column 72; bearing plate 73; lifting cylinder 75; spatial moving frame 81; mounting plate 811; machine cover 90; main body section 101; end 102; snap-fit ​​groove 103. Detailed Implementation

[0023] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0024] like Figures 1-3 As shown, this embodiment of the invention provides a single-station magnetization detection device for rotor magnetization, including a machine base 10, a frame 20, a magnetization box 30, a lifting and clamping mechanism, and a detection mechanism 80. The frame 20 is erected on the machine base 10, and the magnetization box 30 is installed on the machine base 10, having a magnetization channel that penetrates vertically. The lifting and clamping mechanism includes an upper clamping mechanism and a lower clamping mechanism. The upper clamping mechanism is installed on the frame 20 and includes a lower abutment shaft 42 that is liftable and rotatable, positioned directly above the magnetization channel. The lower clamping mechanism... The mechanism is installed below the surface of the machine base 10 and includes a liftable upper abutment shaft 74, which corresponds to the area directly below the magnetization channel. The upper and lower ends of the rotor are clamped by the lower abutment shaft and the upper abutment shaft, and the rotor is moved into the magnetization channel to a preset height position for magnetization. The detection mechanism 80 is installed on the machine base 10 and located on one side of the magnetization box 30. It includes a transversely movable detection head 82, which is used to detect the magnetization flux of the rotor after it leaves the magnetization box 30 and rises to the preset position.

[0025] The machine 10 includes a table panel 11, on which a slide rail 12 is provided so that the magnetizing box 30 can slide along the slide rail 12 and slide to the bottom of the corresponding frame 20 during installation, and then be locked and fixed by fasteners.

[0026] The frame 20 includes guide columns 21 and a top plate 22. The guide columns 21 are fixedly erected on the table panel 11, and the top plate 22 is fixedly installed on the top of the guide columns 21. In this example, there are four guide columns 21, which are supported at the four corners of the top plate 22.

[0027] Please see Figure 4 The upper clamping mechanism includes a lifting plate 41, a lower abutment shaft 42, a lower abutment shaft fixing seat 43, and a driving mechanism 44. The lifting plate 41 is movably mounted on the guide post 21. The lower abutment shaft 42 is mounted on the bottom surface of the lifting plate 41 via the lower abutment shaft fixing seat 43. The lower abutment shaft 42 moves up and down together with the lifting plate 41. The upper end of the lower abutment shaft 42 extends to the top surface of the lifting plate 41, and the lower end of the lower abutment shaft 42 is used to abut against the top of the rotor. The driving mechanism 44 is mounted on the top surface of the lifting plate 41 and is used to connect to the upper end of the lower abutment shaft 42, driving the lower abutment shaft 42 to rotate.

[0028] Understandably, the upper clamping mechanism also includes a servo screw, which is mounted on the top plate 22 of the frame 20 to drive the lifting plate 41 to move up and down.

[0029] Please see Figures 5-8 The lower abutment shaft fixing seat 43 includes a seat body 431 and a bearing seat 432. The seat body 431 is fixedly connected to the bottom surface of the lifting plate 41. A through-shaft hole 4311 is axially formed at the center of the seat body 431. The bearing seat 432 is fixedly installed in the through-shaft hole 4311 of the seat body 431. The lower abutment shaft 42 passes through the center of the bearing seat 432 and extends out of the lifting plate 41. It is connected to the drive mechanism 44 on the top surface of the lifting plate 41, so that the lower abutment shaft 42 can rotate relative to the lower abutment shaft fixing seat 43. Preferably, the drive mechanism 44 adopts a structure of motor and conveyor belt.

[0030] Furthermore, the bearing housing 432 includes a base and a bearing mounted on the base, and a through hole is formed on the base that corresponds to and communicates with the center hole of the bearing so that the lower abutment shaft 42 can pass through it; a connecting hole is provided on the outer circumferential surface of the base, and the bearing housing 432 is installed in the seat body 431 and connected to the seat body 431 through the connecting hole.

[0031] Furthermore, the lower abutment shaft 42 includes a shaft body and a snap-fit ​​structure installed in the shaft body. The upper end of the shaft body is connected to the drive mechanism 44 for transmission, and the drive mechanism 44 drives it to rotate. The snap-fit ​​structure is used to snap the shaft body to the rotor, so that the rotor can be driven to rotate together.

[0032] Furthermore, the shaft body includes a lower shaft body 421 and an upper shaft body 422 axially connected to the lower shaft body 421. The top surface of the lower shaft body 421 has a bearing hole 4211 along the axial direction, and the bearing hole 4211 has a preset depth. The bottom surface of the bearing hole 4211 has a top hole 4212 along the axial direction downward, penetrating the bottom surface of the lower shaft body 421.

[0033] The snap-fit ​​structure includes a pressing component and a holding component. The pressing component is used to hold the lower abutment shaft 42 against the top of the rotor before it snaps into place (i.e., before snapping, the shaft needs to rotate relative to the rotor so that the caliper assembly on the shaft aligns with the rotor's slot, at which point the holding component engages with the rotor's slot). This keeps the rotor stationary while allowing the shaft to rotate relative to the rotor, and creates a gap between the bottom surface of the lower shaft 421 and the top surface of the rotor, preventing the bottom surface of the lower abutment shaft 42 from contacting the top surface of the rotor, thus avoiding rotational interference or causing the rotor to move. The holding component is used to align the rotor's slot.

[0034] The pressing assembly includes a pusher post 51, a cover 52, several bearings 53, and a retaining spring 54. The lower end of the pusher post 51 is a cone for pressing against the center of the rotor top surface, and the upper end of the pusher post 51 is formed into a platform for mounting several bearings 53. The cover 52 is used to press against the top of several bearings 53 to limit the bearings 53 in the axial direction. The retaining spring 54 is engaged with the top of the pusher post 51 to prevent the pusher post 51 from falling off relative to the bearings 53.

[0035] Specifically, a number of bearings 53 are securely fitted onto the platform of the abutment post 51 and housed within the bearing holes 4211 of the lower shaft body 421. The bearings 53 are supported by the bottom surface of the bearing holes 4211 (specifically, the outer ring of the bearings 53). The radial dimension of the bearings 53 is equivalent to the radial dimension of the bearing holes 4211. The lower end of the abutment post 51 extends into the center hole 4212 to a predetermined depth, but does not extend to the bottom end of the lower shaft body 421. A locking groove 4213 surrounding the bearing holes 4211 is provided on the top surface of the lower shaft body 421. The pressure cap 52 is locked in the locking groove 4213 by a pin and presses against the outer ring of the bearings 53. In this way, the bearings 53 are limited between the bottom surface of the bearing holes 4211 and the pressure cap 52 to prevent axial movement. When the lower shaft 421 rotates, the outer ring of the cover 52 and the bearing 53 rotate together with the lower shaft 421, and the top column 51 holds the top surface of the rotor, and they will not rotate together.

[0036] Furthermore, the top surface of the pressure cap 52 is provided with a receiving groove 521, and a through hole is provided in the center of the receiving groove 521 so that the upper end of the abutment post 51 can be inserted upward into the receiving groove 521. The retaining spring 54 is installed in the receiving groove 521 and is engaged with the top end of the abutment post 51 to prevent the abutment post 51 from falling out of the bearing 53 in the axial direction.

[0037] The clamping assembly is used to engage with the rotor, so that the shaft drives the rotor to rotate together when it rotates. The clamping assembly includes clamping rods 55, cross blocks 56 and springs 57. There are two clamping rods 55, which are axially slidably installed in the shaft body. The two clamping rods 55 are vertically connected to both ends of the cross blocks 56. The cross blocks 56 abut against the top surface of the pressure cap 52. The springs 57 are used to press downward against the top surface of the cross blocks 56, providing a downward elastic force for the cross blocks 56.

[0038] Specifically, a guide hole 4214 is provided axially on the top surface of the lower shaft 421, extending through the entire lower shaft 421. There are two guide holes 4214, which are arranged opposite each other in the radial direction of the lower shaft 421. Two locking rods 55 are slidably disposed in the guide holes 4214, and the lower ends of the locking rods 55 extend to the lower port of the lower shaft 421. A transverse connecting block 56 spans across and abuts against the pressure cap 52. One end of a spring 57 abuts against the transverse connecting block 56, and the other end abuts against the upper shaft 422 (after the lower shaft 421 and the upper shaft 422 are fixedly connected), providing a downward elastic force to the transverse connecting block 56. When the lower shaft 421 presses against the rotor, the locking rod 55 is pushed upwards by the rotor. The locking rod 55, along with the transverse connecting block 56, moves upwards, and the spring 57 is compressed until the top of the rotor abuts against the top cone of the abutment post 51. At this time, the rotor is held and fixed by the abutment post 51. Then, the shaft rotates, causing the locking rod 55 to rotate relative to the top surface of the rotor. The abutment post 51 maintains its hold on the rotor and does not rotate. When the locking rod 55 rotates to align with the slot on the rotor, the lower end of the locking rod 55 will enter the slot, and then the locking rod 55 will drive the rotor to rotate together. Understandably, an encoder can be installed at the top of the shaft to record the position and rotation angle of the shaft. Through the encoder recording, the lower shaft 421 can first rotate back to the initial position and then rotate to the required angle, realizing the precise adjustment of the rotor's required angle in the magnetizing box.

[0039] The locking structure may further include a locking sensing structure for monitoring the locking status of the locking rod 55; the locking sensing structure includes a column 61, a horizontal pin 62, a sensing ring 63, and a locking sensor 64. The column 61 is fixed to the horizontal connecting block 56 and moves up and down with the horizontal connecting block 56. The horizontal pin 62 is inserted laterally into the column 61 and moves up and down with the column 61. The two ends of the horizontal pin 62 extend out of the outer periphery of the upper shaft 422. The sensing ring 63 is sleeved around the outer periphery of the upper shaft 422 and connected to the two ends of the horizontal pin 62. The movement of the horizontal pin 62 drives the movement of the sensing ring 63. The locking sensor 64 is installed on the lower outer periphery of the base 431, and there are two of them, arranged vertically. Thus, when the sensing ring 63 rises to the preset height, the sensing ring 63 senses the upper locking sensor 64 and can determine that the locking rod 55 is pushed up by the rotor. When the sensing ring 63 falls back, the sensing ring 63 senses the lower locking sensor 64 and can determine that the lower end of the locking rod 55 slides into the locking groove of the rotor.

[0040] Furthermore, an axial groove 4221 for sleeved column 61 is provided on the bottom surface of the upper shaft 422 to guide the column 61 to rise and fall. In addition, a longitudinal groove 4222 is provided on the circumferential surface of the upper shaft 422 to allow the horizontal pin 62 to extend and guide the horizontal pin 62 to rise and fall.

[0041] The snap-fit ​​structure further includes a crimping sensing structure for detecting whether the lower shaft 421 contacts the rotor when it presses against the rotor. The principle of the crimping sensing structure is roughly the same as that of the snap-fit ​​sensing structure. The crimping sensing structure includes a crimping rod 65, an elastic guide sleeve 66, a sensing block 67, and a crimping sensor 68. The crimping rod 65 is slidably mounted axially on the lower shaft 421. The elastic guide sleeve 66 is fitted on the crimping rod 65 to provide the elastic force for the crimping rod 65 to return downward. The sensing block 67 is located at the top of the crimping rod 65. The crimping sensor 68 is mounted on the lower outer periphery of the base 431. Specifically, the shaft body has a crimping sensing channel for mounting the crimping rod 65. One section of the crimping sensing channel inside the upper shaft body 422 is configured as a stepped hole structure, with a larger diameter at the lower end and a smaller diameter at the upper end. The elastic guide sleeve 66 is installed in the lower end hole. The lower end of the crimping rod 65 is located at the lower end opening of the lower shaft body 421, and the upper end of the crimping rod 65 is located inside the upper shaft body 422. A sensing hole is correspondingly opened on the peripheral wall of the upper shaft body 422 for sensing by the sensing block 67 and the crimping sensor 68. When the lower shaft 421 presses against the rotor, the bottom end of the pressing rod 65 will contact the top surface of the rotor and move upward under the support of the rotor. As a result, the sensing block 67 at the top of the pressing rod 65 moves upward together. The upward movement of the sensing block 67 will separate it from the pressing sensor 68 corresponding to the lower end of the base 431, so that the pressing sensor 68 will send a signal that the lower shaft 421 and the rotor have entered contact. The elastic guide sleeve 66 is compressed until the lower shaft 421 separates from the top of the rotor. Then, the pressing rod 65 returns to its original position under the elastic force of the elastic guide sleeve 66.

[0042] Furthermore, the upper clamping mechanism includes an anti-rotation mechanism 45, which is used to fix the position of the conveyor belt of the drive mechanism 44 when the drive mechanism 44 is not activated.

[0043] Please see Figure 9 , Figure 10The lower clamping mechanism includes a fixed plate 71, a fixed column 72, a bearing plate 73, an upper abutment shaft 74, and a lifting cylinder 75. The fixed plate 71 is fixedly connected to the lower surface of the table panel 11 of the machine tool 10. The fixed column 72 is fixedly connected to the lower surface of the fixed plate 71. The bearing plate 73 is movably sleeved on the fixed column 72. The upper abutment shaft 74 is fixedly erected on the bearing plate 73 and extends upward through the fixed plate 71 and the table panel 11 into the magnetization channel of the magnetization box 30. The upper abutment shaft 74 is used to support the bottom end of the rotor. The lifting cylinder 75 is fixedly erected on the table panel 11. The piston of the lifting cylinder 75 passes through the table panel 11 and is connected to the bearing plate 73. Thus, the lifting cylinder 75 can drive the bearing plate 73 to rise and fall, thereby driving the upper abutment shaft 74 to rise and fall.

[0044] Please see Figure 11 The detection mechanism 80 includes a spatial moving frame 81 and a detection head 82. The spatial moving frame 81 is installed on the table panel 11 of the machine tool 10 and is located on one side of the magnetizing box 30. The spatial moving frame 81 includes a lifting slide and a horizontal slide installed on the lifting slide. The horizontal slide is connected to a mounting plate 811. The mounting plate 811 can be moved in both height and horizontal direction by the lifting slide and the horizontal slide. The detection head 82 is installed on the mounting plate 811. Thus, by moving the mounting plate 811, the detection head 82 can be moved closer to the outer periphery of the rotor. By rotating the rotor, the detection head 82 can detect the magnetization amount of the magnets on the outer periphery of the rotor. Furthermore, by moving the detection head 82 up and down by the mounting plate 811, different height positions of the rotor can be detected, realizing comprehensive detection of the outer periphery surface of the rotor.

[0045] Please see Figure 12 Furthermore, the single-station magnetization testing device includes a cover 90 and a control system, which are mounted on the machine base 10. The control system is installed inside the machine base 10 to control the operation of each mechanism.

[0046] When magnetizing a rotor, the single-station magnetization detection device of the present invention first places the rotor on the upper abutment shaft 74 of the lower clamping mechanism by means of a robotic arm. Then, the lower abutment shaft 42 of the upper clamping mechanism descends and abuts against the rotor. After the lower abutment shaft 42 abuts against the rotor, the drive mechanism 44 drives the lower abutment shaft 42 to rotate, so that the lower abutment shaft 42 rotates relative to the rotor. The snap-fit ​​structure of the lower abutment shaft 42 directly snaps against the rotor. Then, the lower abutment shaft 42 drives the rotor to rotate, rotating the rotor to a preset orientation angle. Then, under the action of the servo screw, the lower abutment shaft 42 moves downward, and at the same time, the upper abutment shaft 74 of the lower clamping mechanism moves downward accordingly. The lifting cylinder 75 provides a corresponding balancing force. In this way, the rotor clamped between the lower abutment shaft 42 and the upper abutment shaft 74 will move precisely to the corresponding height position in the magnetizing box 30. The magnetizing box 30 is started to magnetize the rotor. After magnetization is completed, the upper abutment shaft 74 is driven to rise by the lifting cylinder 75, and the servo screw cooperates accordingly. The rotor rises to the corresponding detection height position. Then the detection mechanism 80 is started, and the detection head 82 detects the amount of magnetization on the surface of the rotor.

[0047] In summary, the single-station magnetization and testing device provided by this invention clamps the rotor at a height that can be limited to a corresponding position through a lifting clamping mechanism. This allows the rotor to be magnetized at the corresponding magnetization position. After magnetization is completed, the rotor is raised to the corresponding testing mechanism, which detects the amount of magnetization. Magnetization and testing can be completed in one station, which greatly simplifies the structure of the device, saves layout space, and greatly simplifies the device structure.

[0048] Furthermore, the lifting clamping mechanism adopts a structure in which the upper clamping mechanism and the lower clamping mechanism cooperate. In particular, the lower abutment shaft of the upper clamping mechanism, through the cooperation of multiple components, first presses the rotor to a stationary position while the shaft rotates. After the shaft of the lower abutment shaft engages with the rotor, it drives the rotor to rotate. This enables the rotor to be precisely adjusted in positioning angle and provides magnetization efficiency.

[0049] The embodiments described above merely illustrate implementation methods of the present invention and should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A single-station magnetization detection device for rotor magnetization, comprising a machine base (10), a frame (20), a magnetization box (30), a lifting and clamping mechanism, and a detection mechanism (80), wherein the frame (20) is erected on the machine base (10), the magnetization box (30) is mounted on the machine base (10), and the magnetization box (30) has a magnetization channel that penetrates vertically, characterized in that: The lifting and clamping mechanism includes an upper clamping mechanism and a lower clamping mechanism. The upper clamping mechanism is installed on the frame (20) and includes a lower abutment shaft (42) that can be lifted and rotated, corresponding to the top of the magnetization channel. The lower clamping mechanism is installed below the surface of the machine base (10) and includes a higher upper abutment shaft (74) that can be lifted, corresponding to the bottom of the magnetization channel. The lower and upper ends of the rotor are clamped by the lower abutment shaft (42) and the upper abutment shaft (74) to move the rotor into the preset height position in the magnetization channel for magnetization. The detection mechanism (80) is installed on the machine base (10) and located on one side of the magnetization box (30). It includes a detection head (82) that can move laterally, which is used to detect the magnetization flux of the rotor when it is raised to the preset position after being magnetized in the magnetization box (30). The upper clamping mechanism includes a lifting plate (41), a lower abutment shaft (42), a lower abutment shaft fixing seat (43), and a driving mechanism (44). The lower abutment shaft (42) is installed on the bottom surface of the lifting plate (41) through the lower abutment shaft fixing seat (43). The upper end of the lower abutment shaft (42) extends to the top surface of the lifting plate (41). The lower end of the lower abutment shaft (42) is used to abut against the top of the rotor. The driving mechanism (44) is installed on the top surface of the lifting plate (41) and is used to connect the upper end of the lower abutment shaft (42) and drive the lower abutment shaft (42) to rotate. The lower abutment shaft (42) includes a shaft body and a snap-fit ​​structure installed in the shaft body. The upper end of the shaft body is connected to the drive mechanism (44) for transmission, and the drive mechanism (44) drives it to rotate. The snap-fit ​​structure is used to snap the shaft body to the rotor.

2. The single-station magnetization detection device according to claim 1, characterized in that, The shaft body includes a lower shaft body (421), and the top surface of the lower shaft body (421) is provided with a bearing hole (4211) along the axial direction. The snap-fit ​​structure includes a pressing assembly, which includes a pressing post (51), a pressing cover (52), several bearings (53), and a snap ring (54). Several bearings (53) are sleeved on the upper end of the pressing post (51), and the several bearings (53) are housed in the bearing hole (4211) of the lower shaft body (421). The pressing cover (52) is pressed onto the top of the several bearings (53) to limit the several bearings (53) in the axial direction. The snap ring (54) is snapped onto the top of the pressing post (51).

3. The single-station magnetization detection device according to claim 2, characterized in that, The snap-fit ​​structure includes a snap-fit ​​assembly, which includes snap-fit ​​rods (55), a cross block (56), and a spring (57). There are two snap-fit ​​rods (55), which are axially slidably installed in the shaft body. The two snap-fit ​​rods (55) are vertically connected to both ends of the cross block (56). The cross block (56) abuts against the top surface of the pressure cap (52). The spring (57) is used to press down against the top surface of the cross block (56) and provide a downward elastic force for the cross block (56).

4. The single-station magnetization detection device according to claim 3, characterized in that, The snap-fit ​​structure includes a snap-fit ​​sensing structure, which includes a column (61), a horizontal pin (62), a sensing ring (63), and a snap-fit ​​sensor (64). The column (61) is fixed on the horizontal connecting block (56), and the horizontal pin (62) is inserted horizontally into the column (61). The two ends of the horizontal pin (62) extend out of the outer periphery of the shaft. The sensing ring (63) is wrapped around the outer periphery of the shaft and connected to the two ends of the horizontal pin (62). The horizontal pin (62) moves up and down, causing the sensing ring (63) to move up and down. The snap-fit ​​sensor (64) is installed on the outer periphery of the lower abutment shaft fixing seat (43) for sensing the sensing ring (63).

5. The single-station magnetization detection device according to claim 3, characterized in that, The snap-fit ​​structure includes a crimping sensing structure, which includes a crimping rod (65), an elastic guide sleeve (66), a sensing block (67), and a crimping sensor (68). The crimping rod (65) is slidably mounted on the lower shaft (421) along the axial direction. The elastic guide sleeve (66) is sleeved on the crimping rod (65) to provide the elastic force for the crimping rod (65) to return downward. The sensing block (67) is located at the top of the crimping rod (65). The crimping sensor (68) is mounted on the outer periphery of the lower abutment shaft fixing seat (43) for sensing with the sensing block (67).

6. The single-station magnetization detection device according to claim 1, characterized in that, The machine tool (10) includes a table panel (11), and the lower clamping mechanism includes a fixed plate (71), a fixed column (72), a bearing plate (73), an upper abutment shaft (74), and a lifting cylinder (75). The fixed plate (71) is fixedly connected to the bottom surface of the table panel (11) of the machine tool (10), the fixed column (72) is fixedly connected to the lower surface of the fixed plate (71), the bearing plate (73) is movably sleeved on the fixed column (72), the upper abutment shaft (74) is fixedly set on the bearing plate (73), and the upper abutment shaft (74) extends upward through the fixed plate (71) and the table panel (11) into the magnetization channel of the magnetization box (30). The lifting cylinder (75) is fixedly erected on the table panel (11), and the piston of the lifting cylinder (75) passes through the table panel (11) and connects with the bearing plate (73).

7. The single-station magnetization detection device according to claim 1, characterized in that, The machine base (10) includes a table panel (11) with a slide rail (12) provided on the table panel (11) so that the magnetizing box (30) can slide along the slide rail (12) and slide to the bottom of the corresponding frame (20) when it is installed.

8. The single-station magnetization detection device according to claim 1, characterized in that, The detection mechanism (80) includes a spatial moving frame (81) and the detection head (82). The spatial moving frame (81) is installed on the machine base (10) and located on one side of the magnetizing box (30). The spatial moving frame (81) includes a lifting slide and a horizontal slide installed on the lifting slide. The horizontal slide is connected to a mounting plate (811). The mounting plate (811) can be moved in the height and horizontal direction by the lifting slide and the horizontal slide. The detection head (82) is installed on the mounting plate (811).

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