Machine vision detection device for microcracks at lower end of rim

By designing a machine vision inspection device for microcracks at the lower end of wheel rims with an adjustment mechanism and a wide-view mechanism, the problem of inflexible inspection platforms in existing technologies has been solved, enabling efficient inspection of wheel rims of various specifications and improving the accuracy of inspection and the versatility of the system.

CN223650445UActive Publication Date: 2025-12-09GUANGXI UNIVERSITY OF TECHNOLOGY
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Patent Information

Application Number
CN202422685768.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-05
Publication Date
2025-12-09
Estimated Expiration
2034-11-05

AI Technical Summary

Technical Problem

Existing machine vision inspection technology cannot meet the inspection needs of rims of multiple sizes. The inspection platform is not flexible enough, and the light source and camera have low degree of freedom, making it unable to adapt to defect detection under different conditions.

Method used

A machine vision detection device for microcracks at the lower end of wheel rims was designed, comprising an adjustment mechanism, a wide-view mechanism, a transmission mechanism, and a load-bearing mechanism. The adjustment mechanism adapts to wheel rims of different specifications, the wide-view mechanism adjusts the position and angle of the camera, and the transmission mechanism realizes image transmission and classification processing.

Benefits of technology

This technology enables the same testing equipment to be used for various types of wheel rims, improving the accuracy and comprehensiveness of testing, reducing equipment replacement costs and time, and ensuring image clarity and the reliability of the testing system.

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Abstract

The utility model relates to the technical field, and discloses a rim lower end microcrack machine vision detection device, which comprises an adjusting mechanism, a wide vision mechanism, a transmission mechanism and a bearing mechanism, the side surface of the adjusting mechanism is connected with the inner side of the bearing mechanism, the bottom end of the wide vision mechanism is fixedly connected with the inner side of the bearing mechanism, and the transmission mechanism is connected with the wide vision mechanism. The side face of the conveying mechanism is fixedly connected with the side face of the bearing mechanism, the adjusting mechanism comprises a rotating disc and a sliding block, the inner side of the rotating disc is connected with the side face of the sliding block, and the side face of the sliding block is fixedly connected with a clamping plate. Through the arrangement of a sliding block, a clamping plate and an elastic spring in the adjusting mechanism, rapid switching can be conducted according to rims of different specifications, the same detection device can adapt to the rims of various types, and the replacement cost and time of the device are reduced; the spiral rod and the moving ring are additionally arranged on the rotating lens, so that images can be captured at different angles, microcracks are prevented from being missed easily, and the detection comprehensiveness and accuracy are improved.
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Description

Technical Field

[0001] This utility model relates to the technical field, and more specifically to a machine vision detection device for microcracks at the lower end of a wheel rim. Background Technology

[0002] A wheel rim is the outer ring of a wheel, typically part of a vehicle's wheel. Its primary function is to support the tire and secure it to the wheel, ensuring even distribution of contact force between the tire and the ground. In vehicles such as cars, motorcycles, and bicycles, the material and design of the wheel rim directly affect the vehicle's performance, weight, and aesthetics. The wheel rim is the outer ring of the wheel, primarily used to support the tire and connect to the axle. It plays a vital role in vehicles like cars, bicycles, and motorcycles.

[0003] Inadequacies of existing technology: In the process of wheel rim inspection, the existing machine vision inspection technology cannot meet the inspection needs of multiple wheel rim sizes on the same inspection platform. The inspection platform is not flexible enough and cannot be adjusted appropriately to meet the wheel rims to be inspected. The existing machine vision inspection platform has low freedom of light source and camera, and cannot meet the defect detection work under different conditions. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a machine vision detection device for microcracks at the lower end of wheel rims, so as to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a machine vision detection device for microcracks at the lower end of a wheel rim, comprising an adjustment mechanism, and further comprising: a wide-view mechanism, a conveying mechanism, and a load-bearing mechanism. The side of the adjustment mechanism is connected to the inner side of the load-bearing mechanism, the bottom end of the wide-view mechanism is fixedly connected to the inner side of the load-bearing mechanism, and the side of the conveying mechanism is fixedly connected to the side of the load-bearing mechanism. The adjustment mechanism comprises a turntable and a slider. The inner side of the turntable is connected to the side of the slider. A clamping plate is fixedly connected to the side of the slider. A guide rod is fixedly connected to the bottom end of the slider. A guide tube is connected to the side of the guide rod. The bottom end of the guide tube is fixedly connected to the inner side of the turntable. A spring is fixedly connected to the inner side of the turntable. The top end of the spring is fixedly connected to the bottom end of the slider. The side of the guide tube is connected to the inner side of the spring.

[0006] Furthermore, the top of the turntable has a sliding groove, the inner side of which is connected to the side of the slider, the bottom of which is fixedly connected to the bottom of the spring, a rotating ball is connected to the bottom of the turntable, a rotating rod is fixedly connected to the bottom of the rotating ball, a first motor is fixedly connected to the bottom of the rotating rod, and the bottom of the first motor is fixedly connected to the top of the load-bearing mechanism.

[0007] Furthermore, the wide-view mechanism includes a fixed frame, a movable ring, and an LED tube. A micro motor is fixedly connected to the top of the fixed frame, and a solenoid is fixedly connected to the bottom of the micro motor. The side of the solenoid is threadedly connected to the inner side of the movable ring.

[0008] Furthermore, a rotating lens is fixedly connected to the top of the moving ring, the bottom of the fixed frame is fixedly connected to the top of the load-bearing mechanism, a light source frame is fixedly connected to the inner side of the LED tube, and the bottom of the LED tube is fixedly connected to the top of the load-bearing mechanism.

[0009] Furthermore, the conveying mechanism includes a conveyor belt, a roller connected to the inner side of the conveyor belt, a rotating rod fixedly connected to the inner side of the roller, a second motor fixedly connected to the top end of the rotating rod, the bottom end of the second motor fixedly connected to the side of the load-bearing mechanism, and the side of the conveyor belt connected to the inner side of the load-bearing mechanism.

[0010] Furthermore, the load-bearing mechanism includes a load-bearing frame, a baffle fixedly connected to the side of the load-bearing frame, a support plate fixedly connected to the side of the load-bearing frame, the inner side of the support plate fixedly connected to the side of the rotating rod, the side of the support plate fixedly connected to the bottom end of the second motor, and a placement groove opened at the top of the load-bearing frame.

[0011] Furthermore, the inner side of the placement slot is connected to the side of the turntable, a miniature telescopic rod is fixedly connected to the bottom end of the placement slot, the top end of the miniature telescopic rod is connected to the bottom end of the turntable, a fixing groove is opened at the top end of the load-bearing frame, and the inner side of the fixing groove is connected to the side of the conveyor belt.

[0012] Furthermore, the inner side of the fixing groove has a hole groove, the inner side of the hole groove is fixedly connected to the top of the roller, the inner side of the placement groove is fixedly connected to a load-bearing plate, the top of the load-bearing plate is fixedly connected to a first motor, the bottom end of the placement groove has a rotating groove, and the inner side of the rotating groove is connected to the side of the rotating rod.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model, by incorporating an adjustment mechanism, facilitates rapid switching according to different rim specifications. This allows the same testing equipment to adapt to various types of rims, reducing the cost and time of equipment replacement. Through size adjustment, it ensures that the camera operates within the optimal field of view and focal length, thereby improving image clarity and the accuracy of the detection system, and reducing the probability of misjudgment and missed detection.

[0015] 2. This utility model, by incorporating a wide-view mechanism, is advantageous because different types and sizes of wheel rims may require different camera positions and angles. The adjustment mechanism allows the equipment to easily adapt to these changes, improving the system's versatility. The adjustable camera can capture images from different angles, ensuring that micro-cracks are not easily missed, thereby improving the comprehensiveness and accuracy of the detection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the adjustment mechanism structure of this utility model;

[0018] Figure 3 This is a partial structural diagram of the adjustment mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the wide-view mechanism structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the conveying mechanism structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the load-bearing mechanism of this utility model.

[0022] The attached figures are labeled as follows: 1. Adjustment mechanism; 101. Turntable; 102. Slider; 103. Clamping plate; 104. Guide tube; 105. Guide rod; 106. Spring; 107. Sliding groove; 108. Rotating ball; 109. Rotating rod; 110. First motor; 2. Wide-view mechanism; 201. Fixed frame; 202. Screw; 203. Moving ring; 204. Rotating lens; 205. Micro motor; 206. Light source frame; 207. LED tube; 3. Conveying mechanism; 301. Conveyor belt; 302. Roller; 303. Rotating rod; 304. Second motor; 4. Load-bearing mechanism; 401. Load-bearing frame; 402. Baffle; 403. Support plate; 404. Placement groove; 405. Micro telescopic rod; 406. Fixed groove; 407. Hole groove; 408. Load-bearing plate; 409. Rotating groove. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The machine vision detection device for microcracks at the lower end of a wheel rim involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Reference Figures 1 to 6 This utility model provides a machine vision detection device for microcracks at the lower end of a wheel rim, including an adjustment mechanism 1, a wide-view mechanism 2, a transmission mechanism 3, and a load-bearing mechanism 4. The side of the adjustment mechanism 1 is connected to the inside of the load-bearing mechanism 4, the bottom of the wide-view mechanism 2 is fixedly connected to the inside of the load-bearing mechanism 4, and the side of the transmission mechanism 3 is fixedly connected to the side of the load-bearing mechanism 4. The adjustment mechanism 1 includes a turntable 101 and a slider 102. The inside of the turntable 101 is connected to the side of the slider 102. A clamping plate 103 is fixedly connected to the side of the slider 102. A guide rod 105 is fixedly connected to the bottom of the slider 102. A guide tube 104 is connected to the side of the guide rod 105. The bottom of the guide tube 104 is fixedly connected to the inside of the turntable 101. A spring 106 is fixedly connected to the inside of the turntable 101. The top of the spring 106 is fixedly connected to the bottom of the slider 102. The side of the guide tube 104 is connected to the inside of the spring 106.

[0025] The turntable 101 has a sliding groove 107 at its top, the inner side of which is connected to the side of the slider 102. The bottom end of the sliding groove 107 is fixedly connected to the bottom end of the spring spring 106. The bottom end of the turntable 101 is connected to a rotating ball 108, the bottom end of which is fixedly connected to a rotating rod 109, and the bottom end of the rotating rod 109 is fixedly connected to a first motor 110. The bottom end of the first motor 110 is fixedly connected to the top end of the load-bearing mechanism 4.

[0026] The wide-view mechanism 2 includes a fixed frame 201, a moving ring 203 and an LED tube 207. A micro motor 205 is fixedly connected to the top of the fixed frame 201, and a solenoid 202 is fixedly connected to the bottom of the micro motor 205. The side of the solenoid 202 is threadedly connected to the inner side of the moving ring 203.

[0027] Among them, the top of the moving ring 203 is fixedly connected to the rotating lens 204, the bottom of the fixed frame 201 is fixedly connected to the top of the load-bearing mechanism 4, the inner side of the LED tube 207 is fixedly connected to the light source frame 206, and the bottom of the LED tube 207 is fixedly connected to the top of the load-bearing mechanism 4.

[0028] The conveying mechanism 3 includes a conveyor belt 301, a roller 302 connected to the inner side of the conveyor belt 301, a rotating rod 303 fixedly connected to the inner side of the roller 302, a second motor 304 fixedly connected to the top of the rotating rod 303, the bottom end of the second motor 304 fixedly connected to the side of the load-bearing mechanism 4, and the side of the conveyor belt 301 connected to the inner side of the load-bearing mechanism 4.

[0029] The load-bearing mechanism 4 includes a load-bearing frame 401, a baffle 402 fixedly connected to the side of the load-bearing frame 401, a support plate 403 fixedly connected to the side of the load-bearing frame 401, the inner side of the support plate 403 fixedly connected to the side of the rotating rod 303, the side of the support plate 403 fixedly connected to the bottom end of the second motor 304, and a placement slot 404 opened at the top of the load-bearing frame 401.

[0030] The inner side of the placement slot 404 is connected to the side of the turntable 101. A miniature telescopic rod 405 is fixedly connected to the bottom of the placement slot 404. The top of the miniature telescopic rod 405 is connected to the bottom of the turntable 101. A fixing slot 406 is opened at the top of the load-bearing frame 401. The inner side of the fixing slot 406 is connected to the side of the conveyor belt 301.

[0031] The fixed groove 406 has a hole groove 407 on its inner side, and the inner side of the hole groove 407 is fixedly connected to the top of the roller 302. The placement groove 404 has a load-bearing plate 408 fixedly connected to its inner side, and the top of the load-bearing plate 408 is fixedly connected to the first motor 110. The placement groove 404 has a rotating groove 409 at its bottom end, and the inner side of the rotating groove 409 is connected to the side of the rotating rod 109.

[0032] The working principle of this utility model is as follows: When using this device, in order to adapt to rims of different sizes, an adjustment mechanism 1 is added. The rim is placed between two clamping plates 103 and fixed by the elastic action of the spring 106. At the same time, the bottom end of the slider 102 is not only connected to the spring 106, but also to the guide rod 105. By moving the guide rod 105 inside the spring 106, the spring 106 can be better kept moving in the same direction. The movement of the slider 102 inside the sliding groove 107 is adjusted for different sizes of rims. A rotating ball 108 is connected to the bottom end of the turntable 101. The rotating ball 108 can make the turntable 101 not only rotate with the rotation of the rotating rod 109, but also tilt the turntable 101 through the action of the miniature telescopic rod 405, so that the rim fixed on the turntable 101 can slide off.

[0033] Under the action of the miniature telescopic rod 405, the wheel rims above the turntable 101 will slide onto the conveyor belt 301. The detection system can then distribute the wheel rims onto different conveyor belts 301 for sorting. The miniature telescopic rod 405 operates based on the detection system's judgment.

[0034] Starting the micro motor 205 controls the rotation of the solenoid 202. The moving ring 203 moves up and down with the rotation of the solenoid 202, carrying the rotating lens 204 up and down to take pictures and detect the image from different heights. A light source frame 206 is placed next to the fixed frame 201 to make the detection clearer and more accurate. The above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A machine vision detection device for microcracks at the lower end of a wheel rim, comprising an adjustment mechanism (1), characterized in that, Also includes: The system comprises a wide-viewing mechanism (2), a conveying mechanism (3), and a load-bearing mechanism (4). The side of the adjusting mechanism (1) is connected to the inside of the load-bearing mechanism (4), and the bottom of the wide-viewing mechanism (2) is fixedly connected to the inside of the load-bearing mechanism (4). The side of the conveying mechanism (3) is fixedly connected to the side of the load-bearing mechanism (4). The adjusting mechanism (1) includes a turntable (101) and a slider (102). The inside of the turntable (101) is connected to the side of the slider (102), and the side of the slider (102) is fixedly connected to the inside of the load-bearing mechanism (4). There is a clamping plate (103). The bottom end of the slider (102) is fixedly connected to a guide rod (105). The side of the guide rod (105) is connected to a guide tube (104). The bottom end of the guide tube (104) is fixedly connected to the inner side of the turntable (101). The inner side of the turntable (101) is fixedly connected to a spring (106). The top end of the spring (106) is fixedly connected to the bottom end of the slider (102). The side of the guide tube (104) is connected to the inner side of the spring (106).

2. The machine vision inspection device for microcracks at the lower end of a wheel rim according to claim 1, characterized in that: The top of the turntable (101) has a sliding groove (107), the inner side of the sliding groove (107) is connected to the side of the slider (102), the bottom end of the sliding groove (107) is fixedly connected to the bottom end of the elastic spring (106), the bottom end of the turntable (101) is connected to a rotating ball (108), the bottom end of the rotating ball (108) is fixedly connected to a rotating rod (109), the bottom end of the rotating rod (109) is fixedly connected to a first motor (110), and the bottom end of the first motor (110) is fixedly connected to the top of the load-bearing mechanism (4).

3. The machine vision inspection device for microcracks at the lower end of a wheel rim according to claim 1, characterized in that: The wide-view mechanism (2) includes a fixed frame (201), a moving ring (203) and an LED tube (207). A micro motor (205) is fixedly connected to the top of the fixed frame (201), and a solenoid (202) is fixedly connected to the bottom of the micro motor (205). The side of the solenoid (202) is threadedly connected to the inner side of the moving ring (203).

4. The machine vision inspection device for microcracks at the lower end of a wheel rim according to claim 3, characterized in that: A rotating lens (204) is fixedly connected to the top of the moving ring (203), the bottom of the fixed frame (201) is fixedly connected to the top of the load-bearing mechanism (4), a light source frame (206) is fixedly connected to the inner side of the LED tube (207), and the bottom of the LED tube (207) is fixedly connected to the top of the load-bearing mechanism (4).

5. The machine vision inspection device for microcracks at the lower end of a wheel rim according to claim 1, characterized in that: The conveying mechanism (3) includes a conveyor belt (301), a roller (302) is connected to the inner side of the conveyor belt (301), a rotating rod (303) is fixedly connected to the inner side of the roller (302), a second motor (304) is fixedly connected to the top of the rotating rod (303), the bottom end of the second motor (304) is fixedly connected to the side of the load-bearing mechanism (4), and the side of the conveyor belt (301) is connected to the inner side of the load-bearing mechanism (4).

6. The machine vision inspection device for microcracks at the lower end of a wheel rim according to claim 1, characterized in that: The load-bearing mechanism (4) includes a load-bearing frame (401), a baffle (402) is fixedly connected to the side of the load-bearing frame (401), a support plate (403) is fixedly connected to the side of the load-bearing frame (401), the inner side of the support plate (403) is fixedly connected to the side of the rotating rod (303), the side of the support plate (403) is fixedly connected to the bottom end of the second motor (304), and a placement slot (404) is opened at the top of the load-bearing frame (401).

7. The machine vision inspection device for microcracks at the lower end of a wheel rim according to claim 6, characterized in that: The inner side of the placement slot (404) is connected to the side of the turntable (101). A miniature telescopic rod (405) is fixedly connected to the bottom end of the placement slot (404). The top end of the miniature telescopic rod (405) is connected to the bottom end of the turntable (101). A fixing slot (406) is opened at the top end of the load-bearing frame (401). The inner side of the fixing slot (406) is connected to the side of the conveyor belt (301).

8. The machine vision inspection device for microcracks at the lower end of a wheel rim according to claim 7, characterized in that: The inner side of the fixing groove (406) has a hole (407), the inner side of the hole (407) is fixedly connected to the top end of the roller (302), the inner side of the placement groove (404) is fixedly connected to a load-bearing plate (408), the top end of the load-bearing plate (408) is fixedly connected to a first motor (110), the bottom end of the placement groove (404) has a rotating groove (409), the inner side of the rotating groove (409) is connected to the side of the rotating rod (109).