Rotor core elastic sheet detection device

Abstract

The utility model discloses a rotor iron core elastic sheet detection device which comprises a rack, the middle part of the rack is provided with a workbench panel, and the left side of the workbench panel is provided with a rotor rotating table with an inclined top; a light source adjusting mechanism connected with the strip-shaped light source is arranged right behind the rotor rotating table; a visual detection module is mounted on the right side of the top of the rack through a visual detection module mounting plate; the visual detection module is arranged towards the top surface of the rotor rotating table; an electric control cabinet is mounted on the rack below the workbench panel; according to the utility model, through cooperation of the rotor rotating table, the strip-shaped light source and the visual detection module, visual detection of defects of the rotor iron core elastic sheet is realized, defects of number and position of the rotor iron core elastic sheet can be detected, and the rotor iron core elastic sheet does not need to extend into a magnetic steel groove to be contacted with the elastic sheet in the detection process; and the detection efficiency and the detection result accuracy are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of rotor testing devices, specifically to a rotor core spring piece testing device. Background Technology

[0002] As a key component of electric vehicles, the rotor core of new energy vehicles has a significant impact on the performance and lifespan of the drive motor due to its manufacturing quality. In existing technologies, the rotor core is composed of multiple layers of silicon steel sheets with slots and holes. The rotor core has magnetic slots, and permanent magnets are inserted into these slots. To ensure the stability of the permanent magnets during motor operation, small, evenly spaced spring pieces are distributed within the magnetic slots. The permanent magnets are then fixed to the magnetic slots in the rotor core using processes such as gluing, injection molding, and encapsulation.

[0003] Chinese patent document CN 221239490U discloses a motor rotor magnet fixing structure, which stacks silicon steel sheets with springs on the bottom edge in a regular manner. The groove design on both sides of the springs provides sufficient bending space for the springs when the magnets are inserted, thereby generating sufficient spring force to fix the magnets to the rotor core. This makes it less likely for the springs to damage the magnets, thereby reducing assembly difficulty, reducing process steps, improving production efficiency, and increasing the strength of the fixing structure.

[0004] After the silicon steel sheets are arranged and stacked at intervals along the axial direction of the rotor core, there are problems such as the distance between the spring pieces being too close or the number of spring pieces not meeting the requirements. Therefore, it is necessary to check the position of the spring pieces in the insertion slot to ensure the forming quality of the rotor core and not affect the subsequent assembly of the magnets.

[0005] Secondly, the Chinese utility model patent with the application number 2023222467839 discloses a rotor core shrapnel detection device, belonging to the technical field of motors. It includes a workbench, a servo module, a conductive component, and a detection component. A rotor core is installed on the workbench. The conductive component includes a conductive piece, which is electrically connected to the rotor core to make the rotor core charged. The detection component includes multiple first detectors and multiple second detectors. The first detector includes a first telescopic cylinder and a first probe, and the second detector includes a second telescopic cylinder and a second probe. The height H of the second probe is L - d < H ≤ L. The servo module drives the first probe and the second probe to move up and down to extend into the insertion slot. The first telescopic cylinder drives the first probe to move towards the preset position to detect the presence or absence of the shrapnel, and the second telescopic cylinder drives the second probe to move towards the gap to qualitatively detect the spacing of the shrapnel. This application can detect the presence or absence of the shrapnel and qualitatively detect the spacing at the same time, improving the detection accuracy as a whole. However, this detection method requires extending into the magnet slot to contact the shrapnel. Repeated insertion of the probe may cause scratches on the surface of the shrapnel, which may affect the product life or magnetic properties after long-term use. Moreover, the wear of the probe itself will reduce the accuracy of the measurement results and require frequent calibration. Summary of the Invention

[0006] The technical problem to be solved by the present utility model is to provide a rotor core shrapnel detection device that can detect the position of the rotor core shrapnel without contacting the shrapnel, avoiding the situation where the distance between the shrapnels is too close or the number of shrapnels does not meet the requirements.

[0007] To solve the above technical problems, the following technical solutions are adopted in the present utility model.

[0008] A rotor core shrapnel detection device includes a frame. In the middle of the frame, there is a workbench panel. On the left side of the workbench panel, there is a rotor rotating table with a tilted top, which is used to carry the rotor to be detected and drive the rotor to rotate obliquely for detection. A light source adjustment mechanism connected to a strip light source is arranged directly behind the rotor rotating table. On the right side of the top of the frame, a vision detection module is installed through a vision detection module mounting plate, and the vision detection module faces the top surface of the rotor rotating table. An electrical control cabinet is installed on the frame below the workbench panel. The controlled ends of the rotor rotating table and the strip light source are respectively connected to the output end of the electrical control cabinet. The vision detection module and the electrical control cabinet are connected through a bidirectional signal link. A display screen is installed on the top of the frame, and the electrical control cabinet is connected to the video input interface of the display screen through an HDMI cable.

[0009] The aforementioned rotor core spring piece testing device includes a rotor rotary table comprising a pair of support seats fixedly mounted on the upper surface of a worktable panel by bolts. An inclined top plate is provided on the top of each support seat. A motor fixing structure, parallel to the inclined top plate, is installed between the two inclined top plates and connected to a servo motor via bolt assemblies. A bearing fixing component is provided on the top of the motor fixing structure, and a thrust ball bearing mounted on the servo motor shaft is located at the center of the top of the bearing fixing component. The upper surface of the thrust ball bearing is connected to a first rotary table, and the top of the first rotary table is connected to a second rotary table via countersunk bolts. Two pairs of clamping and positioning pins are provided on the top surface of the second rotary table, each pair of clamping and positioning pins being locked to both ends of the rotor structure inner hole on the rotor.

[0010] In the aforementioned rotor core spring detection device, a guide groove structure is bolted to the underside of the inclined top plate.

[0011] The aforementioned rotor core spring piece detection device includes a light source adjustment mechanism comprising an X-axis guide rail mounted on the bottom of a support base, a first guide rail slider slidably mounted on the X-axis guide rail, and the first guide rail slider being driven by an X-axis drive motor; the top end of the first guide rail slider is connected to an L-shaped adapter, and a Z-axis guide rail and a second guide rail slider slidably connected to the Z-axis guide rail are mounted on the inner side of the L-shaped adapter, the second guide rail slider being driven by a Z-axis drive motor; a first light source rotating component is bolted to the top end of the second guide rail slider, and second light source rotating components are respectively mounted at both ends of the strip light source, the first light source rotating component being connected to the corresponding second light source rotating component via a light source rotation positioning bolt.

[0012] In the aforementioned rotor core spring detection device, the upper half of the first light source rotating component is a circular plate, and two first arc-shaped holes are symmetrically arranged about the center of the circular plate. The light source rotation positioning bolt passes through the first arc-shaped holes and connects to the second light source rotating component.

[0013] The aforementioned rotor core spring detection device includes a vision detection module comprising an industrial camera and a telecentric lens. The industrial camera is mounted on a camera mounting sheet metal part by three sets of fastening bolts, and the telecentric lens is mounted on the front end of the industrial camera. The camera mounting sheet metal part is connected to an angle adjustment mechanism.

[0014] The aforementioned rotor core spring piece detection device includes an angle adjustment mechanism comprising a transverse mounting plate mounted on a visual inspection module mounting plate, a longitudinal mounting plate mounted on the transverse mounting plate, the longitudinal mounting plate being connected to the transverse mounting plate by countersunk bolts, and a rotating clamping sheet metal component mounted on the lower part of the longitudinal mounting plate; the rotating clamping sheet metal component consists of a rear panel and two side panels, the front end of the side panel of the rotating clamping sheet metal component having a second arc-shaped hole, and the outer side panel of the camera fixing sheet metal component having a third arc-shaped hole, the rotating clamping sheet metal component and the camera fixing sheet metal component being connected by locking bolts passing through the second arc-shaped hole and the third arc-shaped hole.

[0015] The aforementioned rotor core spring detection device has two parallel waist holes on the rear panel of the rotating clamping sheet metal part, and the rear panel is connected to the longitudinal mounting plate by bolts; the lower half of the rear panel of the rotating clamping sheet metal part has a central groove for the power line and signal line of the industrial camera to pass through.

[0016] The aforementioned rotor core spring detection device includes a PC, a PLC controller, a light source controller, a servo motor controller, and a power supply module installed in the electrical control cabinet. The PC establishes a bidirectional communication connection with the PLC controller via an Ethernet interface, and the display screen is connected to the PC via an HDMI interface for video. At the same time, it establishes a status feedback channel with the PLC controller via an RS interface.

[0017] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0018] This invention provides a rotor core spring piece inspection device. Through the cooperation of a rotor rotary table, a strip light source, and a vision inspection module, it achieves visual inspection of rotor core spring piece defects. It can detect defects in both quantity and location of the spring pieces. During the inspection process, it does not require insertion into the magnet slot to contact the spring pieces, thus avoiding damage and improving inspection efficiency and accuracy. Furthermore, the device displays images captured by an industrial camera on a screen, allowing for intuitive observation of the inspection results. During the inspection process, a barcode scanner encodes the inspected rotor, binding the inspection results and collected images with the product's QR code information to form a local file stored on a PC, facilitating customer traceability of product inspection information. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the specific structure of the present utility model;

[0020] Figure 2 This is a front view of the rotor rotary table described in this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the rotor rotary table described in this utility model;

[0022] Figure 4 This is a top view of the rotor rotary table described in this utility model;

[0023] Figure 5 This is a schematic diagram of the specific structure of the light source adjustment mechanism described in this utility model;

[0024] Figure 6 This is a schematic diagram of the specific structure of the visual inspection module described in this utility model.

[0025] The components include: 1. Frame, 2. Worktable panel, 3. Rotor rotary table, 300. Support base, 301. Inclined top plate, 302. Servo motor, 303. Motor fixing structure, 304. Bearing fixing component, 305. First rotary table, 306. Second rotary table, 307. Motor support base, 308. Guide groove structure, 309. Thrust ball bearing, 3010. Rotary table positioning bolt, 3011. Clamping positioning pin, 4. Light source adjustment mechanism, 400. X-axis guide rail, 401. First guide rail slider, 402. L-shaped adapter, 403. Z-axis guide rail, 404. Second guide rail slider, 405. First light source rotation mechanism. 406. First arc-shaped hole, 407. Light source rotation positioning bolt, 408. Second light source rotation component, 409. Strip light source, 4010. X-axis drive motor, 4011. Z-axis drive motor, 5. Vision inspection module, 500. Horizontal mounting plate, 501. Longitudinal mounting plate, 502. Rotary clamping sheet metal part, 503. Camera fixing sheet metal part, 504. Industrial camera, 505. Telecentric lens, 506. Middle groove, 507. Second arc-shaped hole, 508. Third arc-shaped hole, 6. Vision inspection module mounting plate, 7. Display screen, 8. Light shield, 9. Electrical control cabinet, 10. Rotor, 11. Rotor structure inner hole. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] A rotor core spring detection device, such as Figures 1 to 6 As shown, it includes a frame 1, with a workbench panel 2 in the middle of the frame 1. The frame 1 is directly fixed to the ground by anchor bolts.

[0028] A top-tilted rotor rotary table 3 is provided on the left side of the worktable panel 2 to support the rotor 10 to be tested and drive the rotor 10 to rotate obliquely for testing.

[0029] The structure of rotor rotary table 3 is as follows Figure 2As shown, it includes a pair of support seats 300 that are fixedly installed on the upper surface of the workbench panel 2 by bolts. The top of the support seat 300 is provided with an inclined top plate 301. A motor fixing structure 303 that is parallel to the inclined top plate 301 is installed between the two inclined top plates 301. The motor fixing structure 303 is connected to the servo motor 302 by bolt assembly. A motor support base 307 that supports the servo motor 302 is also provided between the support seats 300.

[0030] The motor support base 307 is fixed to the workbench panel 2 by bolts. The workbench panel 2 is provided with an oblong hole for installing the motor support base 307. The motor support base 307 can move back and forth along the oblong hole on the workbench panel 2.

[0031] A bearing fastener 304 is provided on the top of the motor fixing structure 303. The bearing fastener 304 is connected to the support base 300 and the motor fixing structure 303 by a bolt assembly.

[0032] A thrust ball bearing 309 is mounted on the servo motor shaft at the top center of the bearing fixing component 304. The thrust ball bearing 309 is installed in the countersunk hole at the top of the bearing fixing component 304, and the outer edge of the seat ring of the thrust ball bearing is tightly fitted with the inner edge of the countersunk hole at the top of the bearing fixing component 304.

[0033] The upper end face of the thrust ball bearing 309 is connected to the first rotary table 305, and the inner edge of the shaft ring of the thrust ball bearing 309 is tightly fitted with the outer edge of the lower half of the first rotary table 305.

[0034] The bottom of the first rotary table 305 has a keyway hole for connecting to the output shaft of the servo motor 302.

[0035] The top of the first rotary table 305 is connected to the second rotary table 306 by countersunk bolts. The top surface of the second rotary table 306 is provided with two pairs of clamping and positioning pins 3011. Each pair of clamping and positioning pins 3011 is locked and connected to both ends of the rotor structure inner hole 11 on the rotor 10, which is used to clamp and position the rotor to be tested, so as to ensure the relative consistency of its position when the camera captures images during each rotation.

[0036] The first rotary table 305 and the second rotary table 306 are respectively provided with through holes in their centers. The rotary table positioning bolt 3010 passes through the central through holes of the first rotary table 305 and the second rotary table 306 and is connected to the threaded hole at the output shaft end of the servo motor 302 to ensure the stability and reliability of the rotation.

[0037] A guide groove structure 308 is bolted to the bottom of the inclined top plate 301, which allows the operator to smoothly place the rotor 10 onto the rotor rotating table 3 along the guide groove on the guide groove installation part 308. At the same time, the guide groove structure 308 can also protect the rotor 10, preventing the rotor from slipping off the rotor rotating table 3 before it is clamped, and avoiding the rotor falling off due to the loosening of the connection between the clamping positioning pin 3011 and the inner hole 11 of the rotor structure.

[0038] The guide slot structure 308 and the rotor 10 are fitted with a clearance to avoid affecting the rotation of the rotor, which in turn affects the acquisition of the rotor core spring image.

[0039] A light source adjustment mechanism 4, which is connected to the bar light source 409, is provided directly behind the rotor rotary table 3. The light source adjustment mechanism 4 is used to adjust the irradiation angle of the bar light source 409 onto the spring sheet to ensure the best detection effect.

[0040] The light source adjustment mechanism 4 includes an X-axis guide rail 400 mounted on a support base 300. Specifically, the X-axis guide rail 400 is fixed to a strip support foot at the bottom of the corresponding support base 300 by bolts. A first guide rail slider 401 is slidably mounted on the X-axis guide rail 400 and is driven by an X-axis drive motor 4010.

[0041] The first guide rail slider 401 is connected to the X-axis guide rail 400 by a fastening knob, which facilitates limiting the movement of the first guide rail slider 401.

[0042] The top of the first guide rail slider 401 is connected to the L-shaped adapter 402 by four fastening bolts. The L-shaped adapter 402 has a Z-axis guide rail 403 and a second guide rail slider 404 that is slidably connected to the Z-axis guide rail 403. The second guide rail slider 404 is driven by the Z-axis drive motor 4011.

[0043] The second guide slider 404 is also connected to the Z-axis guide rail 403 by a fastening knob, which facilitates limiting the movement of the second guide slider 404 and ensures stability after the light source adjustment is completed.

[0044] The top of the second guide rail slider 404 is bolted with a first light source rotating component 405, and the two ends of the strip light source 409 are respectively mounted with second light source rotating components 408. Specifically, the strip light source 409 is connected to the second light source rotating component 408 by bolts.

[0045] The first light source rotating component 405 is connected to the second light source rotating component 408 on the corresponding side via a light source rotating positioning bolt 407.

[0046] The upper part of the first light source rotating component 405 is a circular plate. Two first arc-shaped holes 406 are symmetrically arranged about the center of the circular plate. The light source rotation positioning bolt 407 passes through the first arc-shaped holes 406 and is connected to the second light source rotating component 408. The rotation adjustment of the light source is achieved by adjusting the position of the light source rotation positioning bolt 407 in the first arc-shaped holes 406.

[0047] In this embodiment, the bar light source 409 has relatively strict requirements on the illumination angle and light intensity of the spring sheet. It is necessary to enhance the contrast between the outer edge of the spring sheet and other parts of the rotor core, and thereby ensure the accuracy of the algorithm detection. Therefore, by adjusting the horizontal and vertical position and the rotation angle of the bar light source 409 through the light source adjustment mechanism, the light source requirements during the testing process can be better met.

[0048] Light shields 9 are installed at the rear end of the frame 1 above the worktable panel 2 and on the left and right sides to reduce the impact of ambient light on the image quality of the camera.

[0049] A vision inspection module 5 is mounted on the top right side of the frame 1 via a vision inspection module mounting plate 6, with the vision inspection module 5 facing the top surface of the rotor rotary table 3.

[0050] The vision inspection module 5 includes an industrial camera 504 and a telecentric lens 505. The industrial camera 504 is mounted on the camera mounting sheet metal part 503 by three sets of fastening bolts, and the telecentric lens 505 is mounted on the front end of the industrial camera 504.

[0051] The camera fixing sheet metal part 503 is connected to the angle adjustment mechanism. The angle adjustment mechanism includes a horizontal mounting plate 500 installed on the visual inspection module mounting plate 6. The visual inspection module mounting plate 6 has a waist-shaped hole. The horizontal mounting plate 500 is installed in the waist-shaped hole by a bolt assembly, so that the visual inspection module 5 can move laterally and realize the fine adjustment of the installation position of the visual inspection module 5.

[0052] A longitudinal mounting plate 501 is mounted on the transverse mounting plate 500. The longitudinal mounting plate 501 is connected to the transverse mounting plate 500 by countersunk bolts. A rotating clamping sheet metal part 502 is mounted on the lower part of the longitudinal mounting plate 501.

[0053] The rotary clamping sheet metal part 502 consists of a rear panel and two side panels. The rear panel of the rotary clamping sheet metal part 502 has two parallel slots. The rear panel is connected to the longitudinal mounting plate 501 by bolts. The height of the rotary clamping sheet metal part 502 can be adjusted by adjusting the position of the bolts in the slots.

[0054] The lower half of the rear panel of the rotary clamping sheet metal part 502 has a central groove 506 to provide sufficient space for the power and signal lines of the industrial camera 504.

[0055] The front end of the side panel of the rotating clamping sheet metal part 502 is provided with a second arc-shaped hole 507, and the outer side panel of the camera fixing sheet metal part 503 is provided with a third arc-shaped hole 508. The rotating clamping sheet metal part 502 and the camera fixing sheet metal part 503 are connected by locking bolts passing through the second arc-shaped hole 507 and the third arc-shaped hole 508.

[0056] The camera mounting sheet metal part 503, with the cooperation of the locking bolt, the second arc-shaped hole 507 and the third arc-shaped hole 508, allows the camera to rotate to a certain angle, and the industrial camera 504, in conjunction with the rotor rotation, can ensure the comprehensive acquisition of images from the four sets of spring clips.

[0057] An electrical control cabinet 9 is installed on a rack 1 located below the workbench panel 2. A display screen 7 is installed on the top of the rack 1. The electrical control cabinet 9 is connected to the video input interface of the display screen 7 via an HDMI cable.

[0058] Electrical control cabinet 9 houses a PC, PLC controller, light source controller, servo motor controller, and power supply module. The PC establishes a bidirectional communication connection with the PLC controller via an Ethernet interface, and the display screen is connected to the PC via an HDMI interface. It also establishes a status feedback channel with the PLC controller via an RS485 interface.

[0059] The PLC controller is connected to the light source controller via a control cable. The light source controller is electrically connected to the bar light source 409, thereby adjusting the brightness of the bar light source 409.

[0060] The controlled end of the industrial camera 504 is connected to the output end of the PLC controller, and the output end of the industrial camera 504 is connected to the PC.

[0061] The industrial camera 504 transmits the captured image of the spring to the PC. The PC then uses image analysis algorithms to identify the edges or feature points of the spring. Specifically, the PC uses the YOLO-V8 algorithm to locate and crop the spring region, and uses the lightweight Mask-RCNN algorithm to detect small targets, calculates the distance between adjacent springs, and counts the number of springs using a counting algorithm.

[0062] The controlled end of the servo motor 302 is connected to the output end of the servo motor controller. The servo motor controller establishes a communication connection with the PLC controller, thereby controlling the rotor turntable 3 to drive the rotor 10 to rotate.

[0063] In use, first, the rotor 10 to be tested is placed on the rotor rotating table 3. The rotor is guided by the guide groove structure 308 to prevent the rotor from slipping off the rotor rotating table 3 before it is clamped. Then, the rotor is clamped and positioned by connecting the clamping and positioning pin 3011 to the inner hole of the rotor structure.

[0064] Secondly, adjust the position of the industrial camera 504 to ensure that clear, high-quality images can be obtained, and adjust the X-axis position, Z-axis position, and rotation angle of the bar light source 409 according to the current position of the industrial camera 504.

[0065] After adjusting the position of the light source and the camera, the rotor to be tested is scanned by a barcode scanner to form a specific code, and the code information is sent to the PC. Then, the code signal is transmitted to the PLC controller, which in turn controls the industrial camera to take a picture and acquire the image of the spring piece on the top of the rotor.

[0066] A barcode scanner is an existing device well known to those skilled in the art. It is mainly used to encode items and transmit the encoded information to a PC. The specific structure of the barcode scanner is not shown in the figure.

[0067] The industrial camera transmits the captured image information to the PC. The PC matches and binds the rotor code and the corresponding image information, saves it as a local file, and displays the image on the display screen 7. The PC makes a defect judgment based on the current image and outputs the OK / NG result on the display screen. If the display screen shows the NG result, an alarm signal will be triggered, and the rotor core that fails the inspection will be picked up and placed into the corresponding tray.

[0068] When the PLC controller receives the OK signal, it controls the rotor turntable 3 to rotate 60° clockwise via the servo motor 302, and then takes a picture once via the industrial camera 504. The currently acquired image is then analyzed and judged for defects according to the above operation. If there are no problems, the current operation is repeated until the rotor rotates one full revolution and then stops. The inspected rotor core is then picked up and collected in the corresponding tray.

[0069] This invention provides a rotor core spring piece inspection device. Through the cooperation of a rotor rotary table, a strip light source, and a vision inspection module, it achieves visual inspection of rotor core spring piece defects. It can detect defects in both quantity and location of the spring pieces. During the inspection process, it does not require insertion into the magnet slot to contact the spring pieces, thus avoiding damage and improving inspection efficiency and accuracy. Furthermore, the device displays images captured by an industrial camera on a screen, allowing for intuitive observation of the inspection results. During the inspection process, a barcode scanner encodes the inspected rotor, binding the inspection results and collected images with the product's QR code information to form a local file stored on a PC, facilitating customer traceability of product inspection information.

Claims

1. A rotor core spring piece detection device, characterized in that: The system includes a frame (1), a workbench panel (2) in the middle of the frame (1), a rotor rotary table (3) with an inclined top on the left side of the workbench panel (2) for carrying the rotor (10) to be tested and driving the rotor (10) to rotate obliquely for testing; a light source adjustment mechanism (4) connected to a strip light source (409) is provided directly behind the rotor rotary table (3); a vision inspection module (5) is installed on the top right side of the frame (1) through a vision inspection module mounting plate (6), and the vision inspection module (5) is positioned facing the top surface of the rotor rotary table (3); an electrical control cabinet (9) is installed on the frame (1) below the workbench panel (2), and the controlled ends of the rotor rotary table (3) and the strip light source (409) are respectively connected to the output end of the electrical control cabinet (9), and the vision inspection module (5) is connected to the electrical control cabinet (9) through a bidirectional signal link.

2. The rotor core spring piece detection device according to claim 1, characterized in that: The rotor rotary table (3) includes a pair of support seats (300) fixedly mounted on the upper surface of the worktable panel (2) by bolts. The top of the support seats (300) is provided with an inclined top plate (301). A motor fixing structure (303) is installed between the two inclined top plates (301) and is parallel to the inclined top plates (301). The motor fixing structure (303) is connected to the servo motor (302) by bolt assembly. A bearing fixing component (304) is provided on the top of the motor fixing structure (303). A thrust ball bearing (309) is installed on the servo motor shaft at the top center of the bearing fixing component (304). The upper end face of the thrust ball bearing (309) is connected to the first rotary table (305). The top of the first rotary table (305) is connected to the second rotary table (306) by countersunk bolts. The top surface of the second rotary table (306) is provided with two pairs of clamping and positioning pins (3011). Each pair of clamping and positioning pins (3011) is locked and connected to both ends of the rotor structure inner hole (11) on the rotor (10).

3. The rotor core spring piece detection device according to claim 2, characterized in that: A guide groove structure (308) is bolted to the underside of the inclined top plate (301).

4. The rotor core spring piece detection device according to claim 2, characterized in that: The light source adjustment mechanism (4) includes an X-axis guide rail (400) installed at the bottom of the support base (300), a first guide rail slider (401) slidably disposed on the X-axis guide rail (400), the first guide rail slider (401) being driven by an X-axis drive motor (4010); the top end of the first guide rail slider (401) is connected to an L-shaped adapter (402), a Z-axis guide rail (403) and a second guide rail slider (404) slidably connected to the Z-axis guide rail (403) are installed on the inner side of the L-shaped adapter (402), the second guide rail slider (404) being driven by a Z-axis drive motor (4011); a first light source rotating component (405) is installed on the top end of the second guide rail slider (404) by bolts, and second light source rotating components (408) are respectively installed at both ends of the strip light source (409), the first light source rotating component (405) being connected to the corresponding second light source rotating component (408) by a light source rotation positioning bolt (407).

5. The rotor core spring piece detection device according to claim 4, characterized in that: The upper half of the first light source rotating component (405) is a circular plate, and two first arc-shaped holes (406) are symmetrically arranged about the center of the circular plate. The light source rotating positioning bolt (407) passes through the first arc-shaped holes (406) and connects to the second light source rotating component (408).

6. The rotor core spring piece detection device according to claim 1, characterized in that: The vision inspection module (5) includes an industrial camera (504) and a telecentric lens (505). The industrial camera (504) is mounted on the camera fixing sheet metal part (503) by three sets of fastening bolts. The telecentric lens (505) is mounted on the front end of the industrial camera (504). The camera fixing sheet metal part (503) is connected to the angle adjustment mechanism.

7. The rotor core spring piece detection device according to claim 6, characterized in that: The angle adjustment mechanism includes a horizontal mounting plate (500) mounted on the visual inspection module mounting plate (6), a vertical mounting plate (501) mounted on the horizontal mounting plate (500), the vertical mounting plate (501) being connected to the horizontal mounting plate (500) by countersunk bolts, and a rotating clamping sheet metal part (502) mounted on the lower part of the vertical mounting plate (501); the rotating clamping sheet metal part (502) consists of a rear panel and two side panels, the front end of the side panel of the rotating clamping sheet metal part (502) is provided with a second arc-shaped hole (507), the outer side panel of the camera fixing sheet metal part (503) is provided with a third arc-shaped hole (508), and the rotating clamping sheet metal part (502) and the camera fixing sheet metal part (503) are connected by locking bolts passing through the second arc-shaped hole (507) and the third arc-shaped hole (508).

8. The rotor core spring piece detection device according to claim 7, characterized in that: The rear panel of the rotary clamping sheet metal part (502) has two parallel waist holes, and the rear panel is connected to the longitudinal mounting plate (501) by bolts; the lower half of the rear panel of the rotary clamping sheet metal part (502) has a central groove (506) for the power line and signal line of the industrial camera (504) to pass through.

9. The rotor core spring piece detection device according to claim 1, characterized in that: The electrical control cabinet (9) is equipped with a PC, a PLC controller, a light source controller, a servo motor controller, and a power supply module.

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