Rotor core elastic sheet detection device

Abstract

The invention discloses a rotor iron core elastic piece detection device which comprises a rack, a workbench panel is arranged in the middle of the rack, and a rotor rotating table with an inclined top is arranged on the left side of the workbench panel; 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 electrical control cabinet is mounted on the rack below the workbench panel, a display screen is mounted at the top of the rack, and the electrical control cabinet is connected with a video input interface of the display screen through an HDMI (High Definition Multimedia Interface) wire; through cooperation of the rotor rotating table, the strip-shaped light source and the visual detection module, visual detection of rotor iron core elastic sheet defects is achieved, the number defects and position defects of the rotor iron core elastic sheets can be detected, and in the detection process, the rotor iron core elastic sheets do not need to stretch into magnetic steel grooves to make contact with the elastic sheets; and the detection efficiency and the detection result accuracy are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rotor detection devices, and particularly relates to a detecting device for shrapnel of a rotor core. Background Art

[0002] As one of the key components of an electric vehicle, the manufacturing quality of the rotor core of a new energy vehicle has an important impact on the performance and service life of a drive motor. In the prior art, the rotor core is stacked by multiple layers of silicon steel sheets with groove and hole features. A magnetic steel groove is provided on the rotor core, and a permanent magnet steel is inserted into the magnetic steel groove on the rotor core. To ensure the stability of the permanent magnet steel during the operation of the motor, small-sized shrapnel with uniform arrangement is distributed in the magnetic steel groove, and processes such as gluing, injection molding, and encapsulation are used to fix the permanent magnet steel in the magnetic steel groove in the rotor core.

[0003] Chinese patent document with publication number CN 221239490U discloses a magnetic steel fixing structure for a motor rotor. It stacks silicon steel sheets with shrapnel at the bottom edge regularly, and through the groove design on both sides of the shrapnel, when the magnetic steel is inserted, the shrapnel has enough bending space, so as to generate enough resilience to fix the magnetic steel and the rotor core, making the shrapnel not easily damage the magnetic steel, thereby reducing the assembly difficulty, reducing the process steps, improving the production efficiency, and increasing the strength of the fixing structure.

[0004] After the silicon steel sheets are arranged at intervals along the axial direction of the rotor core and stacked into a shape, there are problems that the distance between the shrapnels is too close or the number of shrapnels does not meet the requirements. Therefore, it is necessary to detect the position of the shrapnels in the insertion slot to ensure the forming quality of the rotor core and not affect the subsequent assembly of the magnetic steel.

[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, which 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 a plurality of first detectors and a plurality of 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 not only detect the presence or absence of the shrapnel but also qualitatively detect the spacing, 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 in the long term. Moreover, the wear of the probe itself will reduce the accuracy of the measurement results and requires frequent calibration. Summary of the Invention

[0006] The technical problem to be solved by the present invention 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 technical solutions adopted by the present invention are as follows.

[0008] A rotor core shrapnel detection device includes a frame. A workbench panel is arranged in the middle of the frame. 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 bar-shaped 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 bar-shaped 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 above-mentioned rotor core shrapnel detection device, wherein the rotor rotating table includes a pair of support seats fixedly installed on the upper end surface of the workbench panel by bolts. An inclined top plate is arranged at the top of the support seat. A motor fixing structural member parallel to the inclined top plate is installed between the two inclined top plates. The motor structural fixing member is connected to the servo motor through a bolt assembly; a bearing fixing member is arranged at the top of the motor fixing structural member, and a thrust ball bearing installed on the rotating shaft of the servo motor is arranged at the center of the top of the bearing fixing member. The upper end surface of the thrust ball bearing is connected to the first rotating table, and the top of the first rotating table is connected to the second rotating table through countersunk head bolts; two pairs of clamping positioning pins are arranged on the top end surface of the second rotating table, and each pair of clamping positioning pins is respectively locked and connected to both ends of the inner hole of the rotor structure on the rotor.

[0010] The above-mentioned rotor core shrapnel detection device, wherein a guide groove structural member is installed below the inclined top plate by bolts.

[0011] The above-mentioned rotor core shrapnel detection device, wherein the light source adjustment mechanism includes an X-axis guide rail installed at the bottom of the support seat. A first guide rail slider is slidably arranged on the X-axis guide rail, and the first guide rail slider is driven by an X-axis drive motor; the top end of the first guide rail slider is connected to an L-shaped adapter. A Z-axis guide rail and a second guide rail slider slidably connected to the Z-axis guide rail are installed inside the L-shaped adapter, and the second guide rail slider is driven by a Z-axis drive motor; the top end of the second guide rail slider is installed with a first light source rotating member through bolts. Two second light source rotating members are respectively installed at both ends of the strip-shaped light source. The first light source rotating member is connected to the corresponding second light source rotating member through a light source rotation positioning bolt.

[0012] The above-mentioned rotor core shrapnel detection device, wherein the upper half of the first light source rotating member is a circular plate, and two first arc-shaped holes symmetrically arranged about the center of the circular plate are opened on the circular plate. The light source rotation positioning bolt passes through the first arc-shaped hole and is connected to the second light source rotating member.

[0013] The above-mentioned rotor core shrapnel detection device, wherein the vision detection module includes an industrial camera and a telecentric lens. The industrial camera is installed on a camera fixing sheet metal part through three groups of fastening bolts. The telecentric lens is installed at the front end of the industrial camera, and the camera fixing sheet metal part is connected to an angle adjustment mechanism.

[0014] The above-mentioned rotor core shrapnel detection device, the angle adjustment mechanism includes a horizontal mounting plate installed on the mounting plate of the vision detection module. A vertical mounting plate is installed on the horizontal mounting plate. The vertical mounting plate is connected to the horizontal mounting plate through countersunk head bolts. A rotating clamping sheet metal part is installed at the lower part of the vertical mounting plate; the rotating clamping sheet metal part is composed of a rear panel and two side panels. The front end of the side panel of the rotating clamping sheet metal part is provided with a second arc-shaped hole, and the outer side panel of the camera fixing sheet metal part is provided with a third arc-shaped hole. The rotating clamping sheet metal part and the camera fixing sheet metal part are connected by a locking bolt passing through the second arc-shaped hole and the third arc-shaped hole.

[0015] The above-mentioned rotor core shrapnel detection device, two parallel waist-shaped holes are opened on the rear panel of the rotating clamping sheet metal part, and the rear panel is connected to the vertical mounting plate through bolts; a middle groove for the power supply line and signal line of the industrial camera to pass through is opened at the center of the lower half of the rear panel of the rotating clamping sheet metal part.

[0016] The above-mentioned rotor core shrapnel detection device, a PC, a PLC controller, a light source controller, a servo motor controller and a power supply module are installed in the electrical control cabinet. The PC establishes a two-way communication connection with the PLC controller through an Ethernet interface. The display screen is video-connected to the PC through an HDMI interface and at the same time establishes a status feedback channel with the PLC controller through an RS interface.

[0017] Due to the adoption of the above technical solutions, the technical progress obtained by the present invention is as follows.

[0018] The present invention provides a rotor core shrapnel detection device, which realizes the visual detection of the defects of the rotor core shrapnel through the cooperation of the rotor rotating table, the strip light source and the vision detection module. It can detect the quantity defects and position defects of the rotor core shrapnel. During the detection process, there is no need to extend into the magnetic steel groove to contact the shrapnel, which will not damage the shrapnel, improves the detection efficiency and the accuracy of the detection result. Moreover, the image information captured by the industrial camera is displayed through the display screen, and the detection result can be intuitively observed. And during the detection process, the detected rotor is coded by a barcode scanner, and the detection result and the captured pictures are bound with the product QR code information to form a local file and stored in the PC, which is convenient for customers to trace the product detection information. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is the front view of the rotor rotating table of the present invention; Figure 3 is the internal structural schematic diagram of the rotor rotating table of the present invention; Figure 4 is the top view of the rotor rotating table of the present invention; Figure 5 This is a schematic structural diagram of the light source adjustment mechanism according to the present invention; Figure 6 This is a schematic structural diagram of the vision detection module according to the present invention.

[0020] Wherein: 1. Frame, 2. Workbench panel, 3. Rotor rotating table, 300. Support base, 301. Tilted top plate, 302. Servo motor, 303. Motor fixing structural member, 304. Bearing fixing member, 305. First rotating table, 306. Second rotating table, 307. Motor support base, 308. Guide groove structural member, 309. Thrust ball bearing, 3010. Rotating 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 rotating member, 406. First arc-shaped hole, 407. Light source rotation positioning bolt, 408. Second light source rotating member, 409. Strip light source, 4010. X-axis drive motor, 4011. Z-axis drive motor, 5. Vision detection module, 500. Horizontal mounting plate, 501. Vertical mounting plate, 502. Rotating clamping sheet metal part, 503. Camera fixing sheet metal part, 504. Industrial camera, 505. Telecentric lens, 506. Intermediate groove, 507. Second arc-shaped hole, 508. Third arc-shaped hole, 6. Vision detection module mounting plate, 7. Display screen, 8. Light shielding plate, 9. Electrical control cabinet, 10. Rotor, 11. Inner hole of rotor structure. Detailed implementation manners

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0022] A rotor core shrapnel detection device, as Figures 1 to 6 shown, includes a frame 1, a workbench panel 2 is arranged in the middle of the frame 1, and the frame 1 is directly fixed on the ground through anchor bolts.

[0023] A rotor rotating table 3 with a tilted top is arranged on the left side of the workbench panel 2, used to carry the rotor 10 to be detected and drive the rotor 10 to rotate obliquely for detection.

[0024] The structure of the rotor rotating table 3 is as Figure 2 shown, including a pair of support bases 300 fixedly installed on the upper end surface of the workbench panel 2 through bolts, a tilted top plate 301 is arranged on the top of the support bases 300, and a motor fixing structural member 303 parallel to the tilted top plate 301 is installed between the two tilted top plates 301. The motor structural fixing member 303 is connected to the servo motor 302 through a bolt assembly, and a motor support base 307 for supporting the servo motor 302 is also arranged between the support bases 300.

[0025] The motor support base 307 is fixed to the workbench panel 2 by bolts. There are kidney-shaped holes on the workbench panel 2 for installing the motor support base 307, and the motor support base 307 can move back and forth along the kidney-shaped holes on the workbench panel 2.

[0026] A bearing fixing part 304 is provided at the top of the motor fixing structural part 303. The bearing fixing part 304 is connected to the support base 300 and the motor fixing structural part 303 by bolt assemblies.

[0027] At the center of the top of the bearing fixing part 304, there is a thrust ball bearing 309 installed on the rotating shaft of the servo motor. The thrust ball bearing 309 is installed in the counterbore at the top of the bearing fixing part 304, and the outer edge of the raceway ring of the thrust ball bearing is in interference fit with the inner edge of the counterbore at the top of the bearing fixing part 304.

[0028] The upper end face of the thrust ball bearing 309 is connected to the first rotating table 305, and the inner edge of the shaft ring of the thrust ball bearing 309 is in interference fit with the outer edge of the lower half part of the first rotating table 305.

[0029] A keyway hole is provided at the bottom of the first rotating table 305 for connecting with the output shaft of the servo motor 302.

[0030] The top of the first rotating table 305 is connected to the second rotating table 306 by countersunk bolts. Two pairs of clamping and positioning pins 3011 are provided on the top end face of the second rotating table 306. Each pair of clamping and positioning pins 3011 is respectively locked and connected to both ends of the inner hole 11 of the rotor structure on the rotor 10 for clamping and positioning the rotor to be measured, ensuring the relative consistency of the position during each rotation process when the camera takes pictures.

[0031] Through holes are respectively provided at the centers of the first rotating table 305 and the second rotating table 306. The rotating table positioning bolt 3010 passes through the central through holes of the first rotating table 305 and the second rotating table 306 and is threadedly connected to the threaded hole at the output shaft end of the servo motor 302 to ensure the stability and reliability of rotation.

[0032] A guide groove structural part 308 is installed below the inclined top plate 301 by bolts, which facilitates the operator to smoothly place the rotor 10 on the rotor rotating table 3 along the guide groove on this guide groove installation part 308. At the same time, the guide groove structural part 308 can also protect the rotor 10 to prevent it from slipping off the rotor rotating table 3 before being clamped, and avoid the connection between the clamping and positioning pins 3011 and the inner hole 11 of the rotor structure from loosening and causing the rotor to fall.

[0033] A clearance fit is provided between the guide groove structural part 308 and the rotor 10 to avoid affecting the rotation of the rotor and further affecting the acquisition of the images of the rotor core shrapnel.

[0034] A light source adjusting mechanism 4 connected to a strip light source 409 is provided directly behind the rotor rotating table 3. The light source adjusting mechanism 4 is used to adjust the irradiation angle of the strip light source 409 on the elastic piece to ensure the best detection effect.

[0035] The light source adjusting mechanism 4 includes an X-axis guide rail 400 installed on the support base 300. Specifically, the X-axis guide rail 400 is fixed to the strip support feet at the bottom of the corresponding support base 300 by bolts. A first guide rail slider 401 is slidably arranged on the X-axis guide rail 400, and the first guide rail slider 401 is driven by an X-axis drive motor 4010.

[0036] The first guide rail slider 401 is connected to the X-axis guide rail 400 through a fastening knob to facilitate the limitation of the movement of the first guide rail slider 401.

[0037] The top of the first guide rail slider 401 is connected to an L-shaped adapter 402 through four fastening bolts. A Z-axis guide rail 403 and a second guide rail slider 404 slidably connected to the Z-axis guide rail 403 are installed inside the L-shaped adapter 402, and the second guide rail slider 404 is driven by a Z-axis drive motor 4011.

[0038] The second guide rail slider 404 is also connected to the Z-axis guide rail 403 through a fastening knob to facilitate the limitation of the movement of the second guide rail slider 404 and ensure the stability after the light source adjustment is completed.

[0039] A first light source rotating member 405 is installed at the top of the second guide rail slider 404 through bolts. Second light source rotating members 408 are respectively installed at both ends of the strip light source 409. Specifically, the strip light source 409 is connected to the second light source rotating member 408 through bolts.

[0040] The first light source rotating member 405 is connected to the second light source rotating member 408 on the corresponding side through a light source rotation positioning bolt 407.

[0041] The upper half of the first light source rotating member 405 is a circular plate. Two first arc-shaped holes 406 symmetrically arranged about the center of the circular plate are opened on 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 member 408, and the rotation adjustment of the light source is realized by adjusting the position of the light source rotation positioning bolt 407 in the first arc-shaped holes 406.

[0042] In this embodiment, there are relatively strict requirements for the irradiation angle and light intensity of the strip light source 409 on the elastic piece. It is necessary to strengthen the contrast between light and dark at the outer edge of the elastic piece and other parts of the rotor core, and ensure the accuracy of the algorithm detection accordingly. Therefore, by adjusting the horizontal and vertical positions and the rotation angle of the strip light source 409 through the light source adjusting mechanism, the light source requirements during the test can be better met.

[0043] At the rear end and on the left and right sides of the frame 1 above the workbench panel 2, light-shielding plates 9 are respectively arranged to reduce the influence of ambient light on the image acquisition quality of the camera.

[0044] On the right side of the top of the frame 1, a vision detection module 5 is installed through a vision detection module mounting plate 6, and the vision detection module 5 is arranged facing the top surface of the rotor turntable 3.

[0045] The vision detection module 5 includes an industrial camera 504 and a telecentric lens 505. The industrial camera 504 is installed on a camera fixing sheet metal part 503 through three groups of fastening bolts, and the telecentric lens 505 is installed at the front end of the industrial camera 504.

[0046] The camera fixing sheet metal part 503 is connected to an angle adjustment mechanism. The angle adjustment mechanism includes a horizontal mounting plate 500 installed on the vision detection module mounting plate 6. A waist-shaped hole is opened on the vision detection module mounting plate 6, and the horizontal mounting plate 500 is installed in the waist-shaped hole through a bolt assembly, so that the vision detection module 5 can move horizontally to realize fine adjustment of the installation position of the vision detection module 5.

[0047] A vertical mounting plate 501 is installed on the horizontal mounting plate 500. The vertical mounting plate 501 is connected to the horizontal mounting plate 500 through countersunk head bolts, and a rotating clamping sheet metal part 502 is installed at the lower part of the vertical mounting plate 501.

[0048] The rotating clamping sheet metal part 502 is composed of a rear panel and two side panels. Two parallel waist-shaped holes are opened on the rear panel of the rotating clamping sheet metal part 502. The rear panel is connected to the vertical mounting plate 501 through bolts, and the position of the adjusting bolt in the waist-shaped hole can be adjusted to adjust the height position of the rotating clamping sheet metal part 502.

[0049] In the center of the lower half of the rear panel of the rotating clamping sheet metal part 502, an intermediate groove 506 is opened to leave enough space for the power line and signal line of the industrial camera 504.

[0050] At the front end of the side panel of the rotating clamping sheet metal part 502, a second arc-shaped hole 507 is opened. On the outer side panel of the camera fixing sheet metal part 503, a third arc-shaped hole 508 is opened. The rotating clamping sheet metal part 502 and the camera fixing sheet metal part 503 are connected through a locking bolt passing through the second arc-shaped hole 507 and the third arc-shaped hole 508.

[0051] The camera fixing sheet metal part 503 rotates the camera to a certain angle under the cooperation of the locking bolt with the second arc-shaped hole 507 and the third arc-shaped hole 508, and the industrial camera 504 can ensure the comprehensiveness of the image acquisition of the four groups of elastic pieces in cooperation with the rotation of the rotor.

[0052] An electrical control cabinet 9 is installed on the frame 1 below the workbench panel 2. A display screen 7 is installed on the top of the frame 1. The electrical control cabinet 9 is connected to the video input interface of the display screen 7 through an HDMI cable.

[0053] A PC, a PLC controller, a light source controller, a servo motor controller, and a power module are installed in the electrical control cabinet 9. The PC establishes a two-way communication connection with the PLC controller through an Ethernet interface. The display screen is video-connected to the PC through an HDMI interface and simultaneously establishes a status feedback channel with the PLC controller through an RS485 interface.

[0054] The PLC controller is connected to the light source controller through a control cable, and the light source controller is electrically connected to the strip light source 409, thereby adjusting the brightness of the strip light source 409.

[0055] 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. The industrial camera 504 transmits the obtained shrapnel avatar to the PC, and then the PC identifies the edge or feature points of the shrapnel through an image analysis algorithm. Specifically, the PC uses the yolo-V8 algorithm for positioning and cropping the shrapnel area, and uses the lightweight mask-RCNN algorithm to achieve small target detection, calculates the distance between adjacent shrapnels, and counts the number of shrapnels through a counting algorithm.

[0056] 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, and then controls the rotor turntable 3 to drive the rotor 10 to rotate.

[0057] During use, first, place the rotor 10 to be detected on the rotor turntable 3, and guide the rotor through the guide groove structure 308 to prevent the rotor from slipping off the rotor turntable 3 before being clamped. Then, clamp and position the rotor by connecting the clamping positioning pin 3011 to the inner hole of the rotor structure.

[0058] Secondly, adjust the position of the industrial camera 504 to ensure that clear and high-quality pictures can be obtained, and adjust the X-axis position, Z-axis position, and rotation angle of the strip light source 409 according to the current position of the industrial camera 504.

[0059] After adjusting the light source position and the camera position, the rotor to be detected is scanned by a barcode scanner to form a specific code, and the code information is sent to the PC, and then the code signal is transmitted to the PLC controller, and then the industrial camera is controlled to take pictures to collect the shrapnel image on the top of the current rotor.

[0060] The barcode scanner is an existing device well-known to those skilled in the art, mainly used for encoding items and transmitting the encoded information to the PC. The specific structure of the barcode scanner is not shown in the figure.

[0061] The industrial camera will transmit the collected image information to the PC. The PC will match and bind the rotor encoding and the corresponding image information, save it as a local file, and display the image through the display screen 7. The PC will make a defect judgment based on the current image and output the OK / NG result on the display screen. If the display screen shows the NG result, an alarm signal will be triggered, and the unqualified rotor core will be grabbed into the corresponding tray.

[0062] When the PLC controller receives the OK signal, it controls the rotor rotating table 3 to rotate clockwise by 60° through the servo motor 302, takes a picture again through the industrial camera 504, and conducts defect analysis and judgment on the currently collected image according to the above operations. If there is no problem, the current operation will be repeated until the rotor rotates one week and then stops. The qualified rotor core will be grabbed into the corresponding tray for collection.

[0063] The present invention provides a rotor core shrapnel detection device, which realizes the visual detection of rotor core shrapnel defects through the cooperation of the rotor rotating table, the strip light source and the vision detection module, and can detect the quantity defects and position defects of the rotor core shrapnel. During the detection process, there is no need to extend into the magnetic steel groove to contact the shrapnel, which will not damage the shrapnel, improving the detection efficiency and the accuracy of the detection result. Moreover, the image information captured by the industrial camera is displayed through the display screen, and the detection result can be visually observed. And during the detection process, the rotor under detection is encoded by the barcode scanner, and the detection result and the captured picture are bound with the product two-dimensional code information to form a local file and stored in the PC, which is convenient for customers to trace the product detection information.

Claims

1. A rotor core shrapnel detection device, characterized in that: It includes a frame (1). A workbench panel (2) is arranged in the middle of the frame (1). On the left side of the workbench panel (2), there is a rotor rotating table (3) with a tilted top, which is used to carry the rotor (10) to be detected and drive the rotor (10) to rotate obliquely for detection; behind the rotor rotating table (3) exactly, there is a light source adjusting mechanism (4) connected to a strip light source (409); on the right side of the top of the frame (1), a vision detection module (5) is installed through a vision detection module mounting plate (6), and the vision detection module (5) is arranged towards the top surface of the rotor rotating table (3); on the frame (1) below the workbench panel (2), an electrical control cabinet (9) is installed. The controlled ends of the rotor rotating table (3) and the strip light source (409) are respectively connected to the output end of the electrical control cabinet (9), and the vision detection module (5) is connected to the electrical control cabinet (9) through a bidirectional signal link; a display screen (7) is installed on the top of the frame (1), and the electrical control cabinet (9) is connected to the video input interface of the display screen (7) through an HDMI cable.

2. The rotor core shrapnel detection device according to claim 1, characterized in that: The rotor rotating table (3) includes a pair of support seats (300) fixedly installed on the upper end surface of the workbench panel (2) by bolts. On the top of the support seats (300), there is an inclined top plate (301). Between the two inclined top plates (301), there is a motor fixing structural member (303) arranged parallel to the inclined top plate (301). The motor structural fixing member (303) is connected to a servo motor (302) through a bolt assembly; on the top of the motor fixing structural member (303), there is a bearing fixing member (304). At the center of the top of the bearing fixing member (304), there is a thrust ball bearing (309) installed on the rotating shaft of the servo motor. The upper end surface of the thrust ball bearing (309) is connected to a first rotating table (305). The top of the first rotating table (305) is connected to a second rotating table (306) through countersunk head bolts; on the top end surface of the second rotating table (306), there are two pairs of clamping and positioning pins (3011), and each pair of clamping and positioning pins (3011) is respectively locked and connected to both ends of a rotor structure inner hole (11) on the rotor (10).

3. The rotor core shrapnel detection device according to claim 2, characterized in that: Below the inclined top plate (301), a guide groove structural member (308) is installed by bolts.

4. A rotor core shrapnel 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) is slidably arranged on the X-axis guide rail (400), and the first guide rail slider (401) is 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). An inner side of the L-shaped adapter (402) is provided with a Z-axis guide rail (403) and a second guide rail slider (404) slidably connected to the Z-axis guide rail (403). The second guide rail slider (404) is driven by a Z-axis drive motor (4011). The top end of the second guide rail slider (404) is installed with a first light source rotating member (405) through bolts. Both ends of the strip light source (409) are respectively installed with second light source rotating members (408). The first light source rotating member (405) is connected to the corresponding second light source rotating member (408) through a light source rotation positioning bolt (407).

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

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

7. The rotor core shrapnel detection device according to claim 6, characterized in that: The angle adjustment mechanism includes a horizontal mounting plate (500) installed on a vision detection module mounting plate (6). A vertical mounting plate (501) is installed on the horizontal mounting plate (500). The vertical mounting plate (501) is connected to the horizontal mounting plate (500) through countersunk head bolts. A rotating clamping sheet metal part (502) is installed at 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. Second arc-shaped holes (507) are formed at the front ends of the side panels of the rotating clamping sheet metal part (502). Third arc-shaped holes (508) are formed on the outer side panels of the camera fixing sheet metal part (503). The rotating clamping sheet metal part (502) and the camera fixing sheet metal part (503) are connected through locking bolts passing through the second arc-shaped holes (507) and the third arc-shaped holes (508).

8. A rotor core shrapnel detection device according to claim 7, characterized in that: Two parallel waist-shaped holes are formed in the rear panel of the rotating clamping sheet metal part (502). The rear panel is connected to the vertical mounting plate (501) through bolts. An intermediate groove (506) for the power line and signal line of the industrial camera (504) to pass through is formed at the center of the lower half of the rear panel of the rotating clamping sheet metal part (502).

9. A rotor core shrapnel detection device according to claim 1, characterized in that: A PC, a PLC controller, a light source controller, a servo motor controller and a power supply module are installed in the electric control cabinet (9). The PC establishes a two-way communication connection with the PLC controller through an Ethernet interface. The display screen is video-connected to the PC through an HDMI interface and simultaneously establishes a status feedback channel with the PLC controller through an RS485 interface.

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