Defect detection device based on machine vision
By designing a transmission and ball bearing mechanism, the problems of slow detection speed and high noise in machine vision defect detection devices have been solved, achieving efficient and smooth defect detection.
Patent Information
- Application Number
- CN202520203886.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-10
AI Technical Summary
Existing machine vision-based defect detection devices are slow, have choppy operation, and are noisy, which affects their detection efficiency and practicality.
The design incorporates a transmission mechanism and a ball bearing mechanism. The conveyor disc rotates through the meshing of gears and a gear ring, while the slider slides within the groove. The balls rotate at equal intervals within the groove, reducing friction and jamming, and improving the smoothness of the conveyor disc.
It achieves fast detection speed, smooth operation, and low noise, thus improving detection efficiency and practicality.
Smart Images

Figure CN223940812U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of defect detection technology, and in particular to a defect detection device based on machine vision. Background Technology
[0002] Machine vision-based defect detection devices typically include key components such as an image acquisition system, a light source, an image processing unit, and a control system. These devices can automatically identify and detect defects on material surfaces, such as cracks, dents, and scratches, and are widely used in metal, semiconductor, textile, packaging, and other manufacturing industries.
[0003] According to research, most machine vision-based defect detection devices require products to be placed in the detection area one by one, and only after the detection is completed can another product be placed in, which reduces the detection speed. At the same time, during product transportation, the frictional resistance causes the products to jam and generate a lot of noise during the transportation process.
[0004] Therefore, those skilled in the art have provided a machine vision-based defect detection device to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a machine vision-based defect detection device. This device features fast detection speed, smooth operation, and low noise, thereby improving its detection efficiency and practicality.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A defect detection device based on machine vision includes a support base and a base. The number of support bases is two. The two support bases are respectively fixedly disposed on the upper two sides of the base. A conveyor plate is rotatably disposed on each of the two support bases. A transmission mechanism is disposed on the base. A ball bearing mechanism is disposed on the outer wall of each of the two support bases.
[0008] The transmission mechanism includes a gear and a gear ring, and there are two gear rings. A motor is fixedly installed at the middle of the upper end of the base. The gear is fixedly connected to the output end of the motor. The two gear rings are respectively fixedly installed at the lower end of the conveyor plate. A sliding groove is opened on the outer wall of the bearing seat. A slider is fixedly installed on the inner wall of the conveyor plate near its lower end.
[0009] Through the above technical solution, the transmission mechanism enables the conveyor plate to rotate on the carrier, thereby increasing the detection speed. The gear meshes with the gear ring, and the slider slides inside the groove. When the gear is rotated by the motor, it can drive the conveyor plate to rotate on the carrier, thereby improving the detection efficiency of the device.
[0010] Furthermore, the ball bearing mechanism includes multiple iron balls, and the outer wall of the bearing seat and the lower end of the slide groove and the inside of the conveying disc and the lower end of its slider are both provided with grooves.
[0011] The above technical solution makes the conveyor plate rotate more smoothly and silkily on the carrier by means of the ball mechanism, thereby reducing the noise caused by jamming and friction, and thus improving the practicality of the device.
[0012] Furthermore, a sensor is fixedly installed on one side of the upper end of the support base, and a detection head is fixedly connected to one side of the sensor;
[0013] Through the above technical solution, the sensor can collect a product image from the detection head and transmit it to an external computer, thereby enabling the operator to quickly discover product defects.
[0014] Furthermore, the gear is meshed with a gear ring;
[0015] The above technical solution, through the meshing connection between the gear and the gear ring, allows the gear to rotate under the action of the motor, thereby driving the conveyor disc to rotate and thus improving the detection speed.
[0016] Furthermore, the slider is slidably disposed inside the groove;
[0017] The above technical solution allows the conveyor plate to be movably connected to the support seat by sliding the slider inside the groove, thus facilitating the rotation and positioning of the conveyor plate.
[0018] Furthermore, the plurality of iron balls are respectively equidistantly rotated and disposed inside the corresponding grooves;
[0019] By using the above technical solution, iron balls are equidistantly rotated and placed inside the corresponding grooves, making the movement of the conveyor disc smoother and silkier, thereby reducing noise caused by jamming and friction.
[0020] This utility model has the following beneficial effects:
[0021] 1. The present invention proposes a defect detection device based on machine vision. The device can make the conveyor plate rotate on the carrier seat through the transmission mechanism, thereby improving the detection speed. Through the meshing of gear and gear ring, the slider slides inside the slide groove, so that when the gear is rotated by the motor, it can drive the conveyor plate to rotate on the carrier seat, thereby improving the detection efficiency of the device.
[0022] 2. The present invention proposes a defect detection device based on machine vision. The device uses a ball bearing mechanism to make the conveyor plate rotate more smoothly and silkily on the carrier, thereby reducing the noise caused by jamming and friction, and thus improving the practicality of the device.
[0023] 3. The present invention proposes a defect detection device based on machine vision. The device has a fast detection speed, smooth movement, and low noise, thereby improving the detection efficiency and practicality of the device. Attached Figure Description
[0024] Figure 1 This is a perspective view of a defect detection device based on machine vision proposed in this utility model;
[0025] Figure 2 This is a bottom view of a defect detection device based on machine vision proposed in this utility model;
[0026] Figure 3 This is a schematic diagram of the support structure of a defect detection device based on machine vision proposed in this utility model;
[0027] Figure 4 This is a schematic diagram of the transmission mechanism structure of a defect detection device based on machine vision proposed in this utility model;
[0028] Figure 5 for Figure 3 Enlarged view of point A in the middle.
[0029] Legend:
[0030] 1. Support seat; 2. Base; 3. Conveyor plate; 4. Transmission mechanism; 41. Gear; 42. Gear ring; 43. Motor; 44. Slider; 45. Slide groove; 5. Sensor; 6. Detection head; 7. Ball bearing mechanism; 71. Groove; 72. Iron ball. Detailed Implementation
[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0032] Reference Figure 1-5The present invention provides a specific embodiment of a defect detection device based on machine vision, comprising a support 1 and a base 2. There are two support 1s, which are respectively fixedly disposed on the upper sides of the base 2. A conveyor plate 3 is rotatably disposed on each of the two support 1s. A transmission mechanism 4 is disposed on the base 2. A ball bearing mechanism 7 is disposed on the outer wall of each of the two support 1s. A sensor 5 is fixedly disposed on one side of the upper end of the support 1. A detection head 6 is fixedly connected to one side of the sensor 5. The sensor 5 can collect a product image from the detection head 6 and transmit it to an external computer, thereby enabling the operator to quickly detect product defects.
[0033] The transmission mechanism 4 includes a gear 41 and two gear rings 42. A motor 43 is fixedly mounted on the upper center of the base 2. The gear 41 is fixedly connected to the output end of the motor 43. The two gear rings 42 are respectively fixedly mounted on the lower end of the conveyor plate 3. A groove 45 is provided on the outer wall of the support seat 1. A slider 44 is fixedly mounted on the lower end of the inner wall of the conveyor plate 3. The transmission mechanism 4 allows the conveyor plate 3 to rotate on the support seat 1, thereby increasing the detection speed. Through the meshing of the gear 41 and the gear rings 42, the slider 44 slides inside the groove 45, making... When the gear 41 rotates under the action of the motor 43, it can drive the conveyor plate 3 to rotate on the support seat 1, thereby improving the detection efficiency of the device. The gear 41 is meshed with the gear ring 42. Through the meshing connection between the gear 41 and the gear ring 42, the gear 41 can drive the conveyor plate 3 to rotate when it is rotated under the action of the motor 43, thereby increasing the detection speed. The slider 44 is slidably set inside the slide groove 45. Through the slider 44 being slidably set inside the slide groove 45, the conveyor plate 3 can be movably connected to the support seat 1, thereby facilitating the rotation and limiting of the conveyor plate 3.
[0034] Reference Figure 1-3 The ball bearing mechanism 7 includes multiple iron balls 72. Grooves 71 are provided on the outer wall of the support seat 1 at the lower end of the slide groove 45 and inside the conveyor disc 3 near the lower end of its slider 44. The ball bearing mechanism 7 makes the conveyor disc 3 rotate more smoothly and evenly on the support seat 1, thereby reducing noise caused by jamming and friction, thus improving the practicality of the device. Multiple iron balls 72 are equidistantly rotated within their respective grooves 71. This equidistant rotation of the iron balls 72 within their respective grooves 71 makes the movement of the conveyor disc 3 smoother and evenly, thereby reducing noise caused by jamming and friction.
[0035] Working principle: When using this machine vision-based defect detection device, the motor 43 is first started, causing the conveyor plate 3 to rotate on the support seat 1 due to the meshing of the gear 41 and the gear ring 42 and the sliding action of the slider 44 inside the slide groove 45. Then, the products to be inspected are placed on the conveyor plate 3 in sequence, and they pass through the detection head 6 due to the rotation of the conveyor plate 3. The detection results are transmitted to the external computer by the sensor 5, so that defects in the products can be detected. At the same time, when the conveyor plate 3 rotates on the support seat 1, the movement of the conveyor plate 3 is smoother and more fluid due to the mutual rotation between the iron balls 72, thereby reducing the noise caused by jamming and friction, thus improving the detection efficiency and practicality of the device.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A defect detection device based on machine vision, comprising a support (1) and a base (2), characterized in that: The number of the bearing seats (1) is two. The two bearing seats (1) are fixedly installed on the upper sides of the base (2). The two bearing seats (1) are rotatably equipped with conveyor discs (3). The base (2) is equipped with a transmission mechanism (4). The outer walls of the two bearing seats (1) are equipped with ball bearing mechanisms (7). The transmission mechanism (4) includes a gear (41) and a gear ring (42). There are two gear rings (42). A motor (43) is fixedly installed at the middle of the upper end of the base (2). The gear (41) is fixedly connected to the output end of the motor (43). The two gear rings (42) are respectively fixedly installed at the lower end of the conveyor plate (3). A sliding groove (45) is opened on the outer wall of the bearing seat (1). A slider (44) is fixedly installed on the inner wall of the conveyor plate (3) near its lower end.
2. The defect detection device based on machine vision according to claim 1, characterized in that: The ball bearing mechanism (7) includes iron balls (72), and there are multiple iron balls (72). The outer wall of the bearing seat (1) and the lower end of the slide groove (45) and the inside of the conveying plate (3) are both provided with grooves (71) near the lower end of the slider (44).
3. The defect detection device based on machine vision according to claim 1, characterized in that: A sensor (5) is fixedly installed on one side of the upper end of the support (1), and a detection head (6) is fixedly connected to one side of the sensor (5).
4. The defect detection device based on machine vision according to claim 1, characterized in that: The gear (41) meshes with the gear ring (42).
5. The defect detection device based on machine vision according to claim 1, characterized in that: The slider (44) is slidably disposed inside the groove (45).
6. A defect detection device based on machine vision according to claim 2, characterized in that: Multiple iron balls (72) are equidistantly rotated and disposed inside the corresponding grooves (71).