Visual inspection equipment for motor rotors

Abstract

This utility model relates to the technical field of rotor inspection equipment. It discloses a visual inspection device for motor rotors, comprising a slide rail assembly, a frame, a blocking structure, a rotor positioner, an inspection robot, and visual sensors. The inspection robot is mounted on the frame, and the slide rail assembly extends laterally through it. The slide rail assembly has an inlet end and an outlet end, with the inlet end being higher than the outlet end. The blocking structure is installed at the loading end of the inspection robot. The rotor positioner extends vertically through the slide rail assembly and corresponds to the inspection robot. The visual sensors are located on both sides of the inspection robot. This utility model reduces mechanical transmission components in the slide rail assembly, lowering energy consumption and failure rate. The cooperation between the blocking structure and the rotor positioner achieves batch isolation and precise rotor positioning. The use of dual visual sensors eliminates blind spots, increasing the recognition rate of three-dimensional defects such as circumferential scratches and end-face pits to 99.5%.

Description

Technical Field

[0001] This utility model relates to the technical field of rotor inspection equipment, and more particularly to a visual inspection equipment for motor rotors. Background Technology

[0002] The motor rotor is an important component of the electric motor, and its appearance quality directly affects the performance and service life of the motor. Traditional motor rotor testing methods mainly rely on manual visual inspection, which is not only inefficient but also easily affected by human factors, leading to inaccurate test results.

[0003] Existing rotor appearance inspection equipment suffers from problems such as unstable material supply, insufficient positioning accuracy, inability to efficiently adapt to rotors of different sizes, and limited inspection angles. Specifically, traditional slide feeding relies on external power and is prone to jamming; the single blocking mechanism leads to positioning deviations; fixed inspection stations make it difficult to comprehensively capture appearance defects; environmental changes or rotor size differences affect inspection stability, resulting in frequent missed or false detections. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and to provide a visual inspection device for motor rotors.

[0005] The objective of this invention is achieved through the following technical solution: A visual inspection device for motor rotors includes a slide rail assembly, a frame, a blocking structure, a rotor positioner, an inspection robot, and visual sensors. The inspection robot is mounted on the frame, and the slide rail assembly extends laterally through it. The slide rail assembly has an inlet end and an outlet end, with the inlet end being higher than the outlet end. The blocking structure is installed on the loading end of the inspection robot. The rotor positioner extends vertically through the slide rail assembly and corresponds to the inspection robot. The visual sensors are located on both sides of the inspection robot. This device's slide rail assembly reduces mechanical transmission components, lowering energy consumption and failure rate. The use of dual visual sensors eliminates blind spots, increasing the recognition rate of three-dimensional defects such as circumferential scratches and end-face pits to 99.5%.

[0006] A better alternative is that the slide assembly includes a first support column, a second support column, a third support column, and a product slide. The first, second, and third support columns are sequentially connected to the bottom of the product slide, with their heights decreasing sequentially. The product slide laterally passes through the detection robot, and the rotor positioner vertically passes through the product slide. This slide assembly allows the product slide to be inclined, enabling automatic feeding and discharging under the weight of the rotor, reducing energy consumption and failure rate.

[0007] A better option is that the product chute includes a material chute and a defective product chute. The material chute runs laterally through the inspection robot and is connected to the first support column, the second support column, and the third support column respectively. The two ends of the defective product chute are connected to the inspection robot and the third support column respectively. The rotor positioner runs vertically through the material chute, and the material chute runs laterally through the inspection robot.

[0008] A better option includes a tilt angle adjustment component and a height adjustment component. The first support column, the second support column, and the third support column are adjustablely connected to the height adjustment component, which is also adjustablely connected to the tilt angle adjustment component. The tilt angle adjustment component is connected to the bottom of the product slide. The height adjustment component can adjust the distance between the first, second, or third support column and the product slide, while simultaneously adjusting the tilt angle of the tilt angle adjustment component, thereby adjusting the tilt angle of the product slide.

[0009] A better alternative is that the rotor positioner includes a lifting cylinder, a cylinder mounting bracket, and a blocking rod. The lifting cylinder is mounted on the frame via the cylinder mounting bracket. The blocking rod is connected to the telescopic rod of the lifting cylinder and vertically penetrates the slide rail assembly. The blocking rod corresponds to the detection robot arm. The rotor positioner can isolate one rotor from multiple rotors, facilitating positioning and gripping by the detection robot arm.

[0010] A preferred embodiment of the inspection robot includes a robot arm support, a longitudinal linear module, a vertical linear module, and rotor grippers. The longitudinal linear module is mounted on the frame via the robot arm support. The rotor grippers are connected to the longitudinal linear module via the vertical linear module. The rotor grippers are matched with both the rotor positioner and the vision sensor, which are mounted on both sides of the robot arm support. The inspection robot can individually grasp a rotor and place it between the two vision sensors to collect the rotor's appearance data.

[0011] A better alternative is that the blocking structure includes a blocking base, a blocking cylinder, guide posts, and a pressure plate. The two ends of the pressure plate are slidably connected to the blocking base via the guide posts. The blocking cylinder is mounted on the blocking base, and its telescopic rod is connected to the pressure plate. The blocking base is mounted on the feed end of the inspection robot. This blocking structure allows a certain amount of rotor to be placed into the inspection robot for detection, preventing interference with the robot's gripping process.

[0012] A better alternative is that the blocking structure includes a blocking base, a blocking cylinder, and a pressure column. The blocking cylinder is mounted on the feed end of the detection robot via the blocking base, and the telescopic rod of the blocking cylinder is connected to the rotor pressure column. This blocking structure can simultaneously press down on multiple rotors, increasing the resistance to the rotors and making it suitable for heavier rotors.

[0013] A preferred option is that the rotor pressure bar includes a first pressure bar or a second pressure bar, wherein the length of the first pressure bar is greater than the length of the second pressure bar. The rotor pressure bar can block rotors of different sizes; the first pressure bar is suitable for smaller rotors, and the second pressure bar is suitable for larger rotors.

[0014] This utility model has the following advantages and beneficial effects compared to the prior art:

[0015] This invention relates to a visual inspection device for motor rotors. The slide rail assembly reduces mechanical transmission components, thereby lowering energy consumption and failure rate. It can simultaneously accommodate rotors of various sizes. The combination of the blocking structure and rotor positioner enables batch isolation and precise rotor positioning. The use of dual vision sensors can eliminate blind spots in the inspection, and the recognition rate of three-dimensional defects such as circumferential scratches and end face pits is increased to 99.5%. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the visual inspection device for motor rotors according to this utility model;

[0017] Figure 2 This is a schematic diagram of the slide rail assembly of the visual inspection device for motor rotors according to this utility model;

[0018] Figure 3 This is a front view of the slide rail assembly of the visual inspection device for motor rotors according to this utility model;

[0019] Figure 4 This is an assembly diagram of the third support column, height adjustment component, and tilt angle adjustment component of the visual inspection device for motor rotors of this utility model;

[0020] Figure 5 This is a schematic diagram of the blocking structure of the visual inspection device for motor rotors according to this utility model;

[0021] Figure 6 This is a schematic diagram of the blocking structure of the visual inspection device for motor rotors according to this utility model;

[0022] Figure 7 This is a schematic diagram of the rotor positioner of the visual inspection device for motor rotors according to this utility model;

[0023] Figure 8 This is a schematic diagram of the inspection robot arm of the visual inspection equipment for motor rotors according to this utility model;

[0024] Figure 9 This is a partial structural diagram of the inspection robot arm of the visual inspection equipment for motor rotors according to this utility model;

[0025] The components in the attached diagram are labeled as follows: 1-Slide assembly; 101-First support column; 102-Second support column; 103-Third support column; 104-Material slide; 105-Defective product slide; 106-Tilting angle adjustment component; 107-Height adjustment component; 2-Frame; 3-Blocking structure; 301-Blocking base; 302-Blocking cylinder; 303-Guide column; 304-Pressure plate; 305-First pressure column; 306-Second pressure column; 4-Rotor positioner; 401-Lifting cylinder; 402-Cylinder fixing bracket; 403-Blocking rod; 5-Detection robot; 501-Robot support; 502-Longitudinal linear module; 503-Vertical linear module; 504-Rotor gripper; 6-Vision sensor; a-Horizontal transverse direction; b-Horizontal longitudinal direction; c-Vertical direction. Detailed Implementation

[0026] The utility model objective of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments cannot be described one by one here, but the implementation of this utility model is not limited to the following embodiments.

[0027] Along the horizontal direction 'a', the arrow points to the right, and to the left; along the horizontal direction 'b', the arrow points to the rear, and to the front; along the vertical direction 'c', the arrow points to the top, and to the bottom.

[0028] like Figure 1 As shown, the visual inspection equipment for motor rotors includes a slide rail assembly 1, a frame 2, a blocking structure 3, six rotor positioners 4, an inspection robot 5, and two vision sensors 6. The inspection robot 5 is mounted on top of the frame 2. The left end of the slide rail assembly 1 is the feed end, and the right end is the discharge end. The height of the feed end is higher than the height of the discharge end, meaning the product slide rail of the slide rail assembly 1 is horizontally inclined downwards to the right. The slide rail assembly 1 extends into the inspection robot 5 from its loading end and then protrudes from its unloading end. The blocking structure 3 is installed at the loading end of the inspection robot 5. The six rotor positioners 4 are installed at the bottom of the top of the frame 2, and they can vertically penetrate the slide rail assembly 1, corresponding to the inspection robot 5. The two vision sensors 6 are respectively installed at the loading and unloading ends of the inspection robot 5, and are arranged symmetrically in a mirror image.

[0029] The slide assembly 1 automatically feeds and discharges materials by allowing the rotor to slide within it using its own weight. The frame 2 is used to mount and fix the inspection robot 5 and the rotor positioner 4. The blocking structure 3 prevents the rotor from entering the inspection robot 5. The rotor positioner 4 positions individual rotors for easy gripping by the inspection robot 5. The inspection robot 5 grips the rotors and places them to two vision sensors 6 for appearance inspection, then sorts and arranges the inspected rotors. The vision sensors 6 are industrial cameras used to collect appearance data of the rotors.

[0030] like Figures 2-4 As shown, the slide assembly 1 includes a first support column 101, a second support column 102, a third support column 103, three tilt angle adjusting components 106, three height adjusting components 107, and a product slide. The product slide includes three material slides 104 and a defective product slide 105. The height adjusting component 107 has a strip-shaped through hole. Three screws pass through the strip-shaped through holes of the three tilt angle adjusting components 106 and are connected to the tops of the first support column 101, the second support column 102, and the third support column 103, respectively. The three tilt angle adjusting components 106 adjust their height vertically relative to the first support column 101, the second support column 102, and the third support column 103, respectively. Each of the three tilt angle adjusting components 106 has an arc-shaped through hole. Three screws pass through the arc-shaped through holes of the three tilt angle adjusting components 106 and are connected to the three height adjusting components 107, respectively. The tilt angle adjusting component 106 adjusts its tilt angle relative to the height adjusting component 107. The tilt angle adjusting member 106, indirectly connected to the first support column 101, is connected to the left end of the bottom of the three material chutes 104. The tilt angle adjusting member 106, indirectly connected to the second support column 102, is connected to the middle of the bottom of the three material chutes 104. The tilt angle adjusting member 106, indirectly connected to the third support column 103, is connected to the right end of the bottom of the three material chutes 104 and the bottom of the defective product chute 105. The heights of the first support column 101, the second support column 102, and the third support column 103 decrease sequentially. The three material chutes 104 all pass laterally through the inspection robot 5. The six rotor positioners 4 pass vertically through the middle of the three material chutes 104, that is, every two rotor positioners 4 pass through the same material chute 104. The left end of the defective product chute 105 extends into the inspection robot 5, and the inspection robot 5 corresponds to the defective product chute 105. The height of the first pressure column 305 is greater than the height of the second pressure column 306.

[0031] The heights of the first support column 101, the second support column 102, and the third support column 103 decrease sequentially, creating a left-high, right-low tilt in the product slide, allowing the rotor to slide for feeding and discharging. The tilt angle adjustment component 106 adjusts the angle between the first support column 101, the second support column 102, and the third support column 103 and the product slide. Rolling bearings are installed on the product slide for rotor transport. There are three material slides 104, each with different specifications (different heights and widths), accommodating rotors of three different sizes simultaneously. The blocking rods 403 of the three rotor positioners 4 correspond to the three material slides 104. Rolling bearings are installed on the defective product slide 105 for transporting and temporarily storing defective rotor parts, facilitating operator retrieval. The height adjustment component 107 adjusts the tilt angle of the product slide to accommodate rotors of different weights.

[0032] Figure 5 and 6 As shown, the blocking structure 3 includes a blocking base 301, three blocking cylinders 302, two guide pillars 303, a pressure plate 304, and two rotor pressure pillars, namely the first pressure pillar 305 and the second pressure pillar 306. The three blocking cylinders 302 are mounted on the blocking base 301 and are evenly distributed. The two ends of the blocking base 301 are mounted on the robot arm bracket 501 of the inspection robot 5 and are located at the loading end of the inspection robot 5. The upper ends of the two guide pillars 303 are slidably connected to the blocking base 301, and the lower ends of the two guide pillars 303 are respectively connected to the left and right ends of the pressure plate 304. The middle part of the pressure plate 304 is connected to the telescopic rod of the front blocking cylinder 302. The first pressure pillar 305 is connected to the telescopic rod of the middle blocking cylinder 302, and the second pressure pillar 306 is connected to the telescopic rod of the rear blocking cylinder 302. The axes of the first pressure column 305 and the second pressure column 306 are both perpendicular, and the length of the first pressure column 305 is greater than the length of the second pressure column 306.

[0033] The blocking base 301 is used to fix and install the blocking cylinders 302, ensuring that the blocking cylinders 302 are evenly distributed to correspond to the rotors on the product slide. The blocking cylinders 302 provide power for the vertical movement of the pressure plate 304, the first pressure column 305, or the second pressure column 306 in the vertical direction c. The guide column 303 guides the movement direction of the pressure plate 304. The pressure plate 304, the first pressure column 305, and the second pressure column 306 are all used to push rotors of different sizes, preventing the rotors from entering the inspection robot 5.

[0034] like Figure 7As shown, each rotor positioner 4 includes a lifting cylinder 401, a cylinder mounting bracket 402, and a blocking rod 403. The cylinder mounting bracket 402 is fixed to the bottom of the top of the frame 2. The lifting cylinder 401 is mounted on the cylinder mounting bracket 402, with its extension rod pointing vertically upwards and penetrating through the product slide rail. The lifting cylinder 401 provides power for the blocking rod 403 to penetrate through the product slide rail. The cylinder mounting bracket 402 is used to fix the lifting cylinder 401 in place. The blocking rod 403 is used to prevent rotor slippage and serves a positioning function. Different sizes of blocking rods 403 can be replaced according to the size of the rotor to facilitate gripping by the inspection robot 5.

[0035] like Figure 8 and 9 As shown, the inspection robot 5 includes a robot support 501, a longitudinal linear module 502, a vertical linear module 503, and a rotor gripper 504. The robot support 501 is mounted on the top of the frame 2. The fixed end of the longitudinal linear module 502 is mounted on the robot support 501, and the longitudinal linear module 502 is arranged in a horizontal longitudinal direction (b). The fixed end of the vertical linear module 503 is vertically connected to the longitudinal moving end of the longitudinal linear module 502. The vertical moving end of the vertical linear module 503 is connected to the rotor gripper 504. Vision sensors 6 are mounted on the left and right sides of the robot support 501.

[0036] The robotic arm bracket 501 is used to fix and mount the longitudinal linear module 502 and the vision sensor 6. The longitudinal linear module 502 is used to drive the rotor gripper 504 to move back and forth in the horizontal longitudinal direction b. The vertical linear module 503 is used to drive the rotor gripper 504 to move back and forth in the vertical direction c. The rotor gripper 504 is used to hold the rotor so that the vision sensor 6 can collect the rotor's appearance data and sort the rotor.

[0037] The working process of the visual inspection equipment for motor rotors is as follows: Under the downward tilt of the material slide 104, the rotor moves from the left end to the right end of the material slide 104 due to its own weight. When the rotor enters the inspection robot 5 to a certain extent, the pressure plate 304 of the blocking structure 3 or the rotor pressure column extends vertically downward and presses down on the rotor, thus preventing the rotor from entering the interior of the inspection robot 5. When a single rotor is located between two rotor positioners 4, the two rotor positioners 4 extend from the bottom of the material slide 104, preventing the rotor from moving forward and isolating the rotor behind it, thus positioning the single rotor. Under the action of the longitudinal linear module 502 and the vertical linear module 503, the rotor gripper 504 moves to the rotor to be inspected and clamps the rotor. Then, under the action of the longitudinal linear module 502 and the vertical linear module 503, it moves between the two vision sensors 6, so that both vision sensors 6 are aligned with the rotor to collect appearance data and determine whether the rotor is a good product. The inspection robot 5 sorts rotors based on appearance data from two vision sensors 6. If the rotor is a good product, it is placed back on the material chute 104 to the right of the second rotor positioner 4, and the rotor continues to slide to the right end of the material chute 104 under its own weight. If the rotor is a defective product, the inspection robot 5 places it on the left end of the defective product chute 105, and the rotor slides to the right end of the defective product chute 105 under its own weight and then stops. After the rotors in the inspection robot 5 have been inspected, the blocking structure 3 retracts again, allowing another batch of rotors to enter the inspection robot 5. The rotor positioner 4 separates the rotors in this batch one by one, making it easier for the inspection robot 5 to grip them. The above steps are repeated to complete the appearance inspection of all rotors.

[0038] The above-described specific embodiments are preferred embodiments of this utility model and are not intended to limit this utility model. Any other changes or equivalent substitutions made without departing from the technical solution of this utility model are included within the protection scope of this utility model.

Claims

1. A visual inspection apparatus for a rotor of an electric machine, characterized by: The device includes a slide assembly (1), a frame (2), a blocking structure (3), a rotor positioner (4), a detection robot (5), and a vision sensor (6). The detection robot (5) is mounted on the frame (2). The slide assembly (1) extends laterally through the detection robot (5). The slide assembly (1) has a feed end and a discharge end. The height of the feed end is higher than the height of the discharge end. The blocking structure (3) is mounted on the feed end of the detection robot (5). The rotor positioner (4) extends vertically through the slide assembly (1) and corresponds to the detection robot (5). The vision sensor (6) is located on both sides of the detection robot (5).

2. The visual inspection apparatus of the electrical machine rotor according to claim 1, characterized in that: The slide assembly (1) includes a first support column (101), a second support column (102), a third support column (103), and a product slide. The first support column (101), the second support column (102), and the third support column (103) are connected to the bottom of the product slide in sequence. The heights of the first support column (101), the second support column (102), and the third support column (103) decrease sequentially. The product slide passes laterally through the detection robot (5), and the rotor positioner (4) passes vertically through the product slide.

3. The visual inspection apparatus of the electrical machine rotor according to claim 2, characterized in that: The product chute includes a material chute (104) and a defective product chute (105). The material chute (104) passes laterally through the inspection robot (5). The material chute (104) is connected to the first support column (101), the second support column (102), and the third support column (103) respectively. The two ends of the defective product chute (105) are connected to the inspection robot (5) and the third support column (103) respectively. The rotor positioner (4) passes vertically through the material chute (104). The material chute (104) passes laterally through the inspection robot (5).

4. The visual inspection apparatus of the electrical machine rotor according to claim 2, characterized in that: It also includes a tilt angle adjustment component (106) and a height adjustment component (107). The first support column (101), the second support column (102) and the third support column (103) are respectively adjustablely connected to the height adjustment component (107). The height adjustment component (107) is adjustablely connected to the tilt angle adjustment component (106). The tilt angle adjustment component (106) is connected to the bottom of the product slide.

5. The visual inspection apparatus of the electrical machine rotor according to claim 1, characterized in that: The rotor positioner (4) includes a lifting cylinder (401), a cylinder mounting bracket (402), and a blocking rod (403). The lifting cylinder (401) is mounted on the frame (2) through the cylinder mounting bracket (402). The blocking rod (403) is connected to the telescopic rod of the lifting cylinder (401). The blocking rod (403) passes vertically through the slide assembly (1) and corresponds to the detection robot (5).

6. The visual inspection apparatus of the electrical machine rotor according to claim 1, characterized in that: The detection robot (5) includes a robot arm support (501), a longitudinal linear module (502), a vertical linear module (503), and a rotor gripper (504). The longitudinal linear module (502) is mounted on the frame (2) via the robot arm support (501). The rotor gripper (504) is connected to the longitudinal linear module (502) via the vertical linear module (503). The rotor gripper (504) is matched with the rotor positioner (4) and the vision sensor (6) respectively. The vision sensor (6) is mounted on both sides of the robot arm support (501).

7. The visual inspection apparatus of the electrical machine rotor according to claim 1, characterized in that: The blocking structure (3) includes a blocking base (301), a blocking cylinder (302), a guide post (303), and a pressure plate (304). The two ends of the pressure plate (304) are slidably connected to the blocking base (301) through the guide post (303). The blocking cylinder (302) is installed on the blocking base (301). The telescopic rod of the blocking cylinder (302) is connected to the pressure plate (304). The blocking base (301) is installed on the feeding end of the detection robot (5).

8. The visual inspection apparatus of the electrical machine rotor according to claim 1, characterized in that: The blocking structure (3) includes a blocking base (301), a blocking cylinder (302), and a pressure column. The blocking cylinder (302) is installed on the feeding end of the detection robot (5) through the blocking base (301). The telescopic rod of the blocking cylinder (302) is connected to the rotor pressure column.

9. The visual inspection equipment for motor rotors according to claim 8, characterized in that: The rotor pressure column includes a first pressure column (305) or a second pressure column (306), wherein the length of the first pressure column (305) is greater than the length of the second pressure column (306).

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