Automatic light detection device and product appearance detection equipment

Abstract

The utility model discloses an automatic light detection device and product appearance detection equipment, relates to the automated testing technical field, wherein the automatic light detection device comprises a detection table, a two-axis movement mechanism and a feeding and returning mechanism, the detection table forms a detection surface, the detection surface forms a placing and taking area and a detection area, the two-axis movement mechanism is arranged on the detection table, and the feeding and returning mechanism is arranged on the detection table. The two-axis movement mechanism is provided with a sliding block, the sliding block is provided with a light detection assembly and a clamping assembly, the light detection assembly forms a detection end towards the detection area, the feeding and returning mechanism comprises a sliding seat arranged on the detection surface in a sliding mode, and a containing groove for containing a to-be-detected product is formed in the sliding seat; the sliding seat is used for driving the to-be-detected product to reciprocate between the placing and taking area and the detection area; according to the technical scheme, products can be automatically fed and discharged through the material conveying and returning mechanism, defective products can be screened out through the clamping assembly, manual intervention is not needed, and the overall automation degree of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automated testing, in particular to an automatic optical inspection device and product appearance inspection equipment. Background Art

[0002] Automatic optical inspection devices are one type of industrial inspection system that uses optical technology and image processing technology to automatically detect product appearance defects. They are widely used in production lines to ensure product quality, improve production efficiency, and reduce human errors. The working principle of these devices includes using various types of light sources to illuminate the inspected products, industrial cameras to capture product images, and transmitting the images to image processing units for analysis. The image processing unit is the brain of the automatic optical inspection device, using various algorithms to identify and distinguish between normal features and defects of products, such as scratches, dents, cracks, uneven colors, etc.

[0003] The automatic optical inspection device in the related technology is actually a semi-automatic device. When performing optical inspection on products, it is necessary to manually place the products under the industrial camera for optical inspection. If there are defective products, manual intervention is required to remove them manually. The entire optical inspection process requires real-time attention from staff, which consumes a lot of manpower and has a low degree of automation. Utility Model Content

[0004] The main purpose of the utility model is to provide an automatic optical inspection device and product appearance inspection equipment, aiming to provide an automatic optical inspection device with a higher degree of automation.

[0005] To achieve the above-mentioned purpose, the automatic optical inspection device proposed by the utility model comprises:

[0006] A testing platform, wherein the testing platform is formed with a testing surface, and the testing surface is formed with a placing and taking area and a testing area;

[0007] A two-axis motion mechanism, the two-axis motion mechanism is arranged on the detection platform, the two-axis motion mechanism is provided with a slider, the slider is provided with an optical detection component and a clamping component, the optical detection component is formed with a detection end facing the detection area, and the optical detection component and the clamping component can approach or move away from the detection surface; and

[0008] The material return mechanism includes a sliding seat slidably arranged on the detection surface, the sliding seat can be close to or away from the optical detection component, the sliding seat is formed with a placement groove for placing the product to be tested, and the sliding seat is used to drive the product to be tested to reciprocate between the placement area and the detection area.

[0009] In one embodiment, the slider is provided with an extension plate extending toward the detection surface, and one end of the extension plate close to the detection surface is provided with a bending portion, and the clamping assembly includes a flexible clamping claw, and the flexible clamping claw is provided at the bending portion.

[0010] In one embodiment, the feeding and returning mechanism further includes;

[0011] A first guide rail, the first guide rail is arranged on the inspection table, and the sliding seat is slidably limited on the first guide rail; and

[0012] A fixed seat, the fixed seat is arranged on the sliding seat, and the fixed seat is formed with a profiling groove adapted to the outer shape of the product to be tested.

[0013] In one embodiment, the automatic optical inspection device further includes a collection box, the collection box is arranged on the inspection table and on one side of the first guide rail, and the collection box is used for collecting defective products.

[0014] In one embodiment, the automatic optical inspection device further includes a light source assembly, the light source assembly is arranged on the sliding seat and below the fixed seat, and the light source assembly is used for providing a light source to the product to be tested.

[0015] In one embodiment, the sliding seat is formed with a fixing port, the bottom of the profiling groove is formed with a light-transmitting port, and the fixing port and the light-transmitting port are communicated with each other to expose the product to be tested to the light source assembly.

[0016] In one embodiment, the two-axis motion mechanism includes:

[0017] A cross frame, the cross frame is arranged on the inspection table, and the cross frame is provided with a second guide rail;

[0018] A vertical frame, the vertical frame is slidably limited on the second guide rail and is provided with a third guide rail perpendicular to the inspection surface; and

[0019] A slider, the slider is slidably limited on the third guide rail.

[0020] In one embodiment, the optical inspection assembly includes a bracket and an industrial camera, the bracket is arranged on the slider, and the industrial camera is arranged on the bracket.

[0021] In one embodiment, the automatic optical inspection device further includes a cover body, the cover body is formed on the inspection table and jointly encloses a working space with the inspection table, and the two-axis motion mechanism is arranged in the working space.

[0022] The present utility model also proposes a product appearance inspection device, including a product appearance inspection device, and the automatic optical inspection device includes:

[0023] An inspection table, the inspection table is formed with an inspection surface, and the inspection surface is formed with a placing and taking area and an inspection area;

[0024] Two-axis motion mechanism, the two-axis motion mechanism is arranged on the inspection table, the two-axis motion mechanism is provided with a slider, the slider is provided with an optical inspection component and a clamping component, the optical inspection component forms a detection end towards the detection area, and the optical inspection component and the clamping component can approach or move away from the detection surface; and

[0025] Feeding and returning mechanism, the feeding and returning mechanism includes a sliding seat slidably arranged on the detection surface, the sliding seat can approach or move away from the optical inspection component, the sliding seat forms a placement groove for placing the product to be tested, and the sliding seat is used to drive the product to be tested to reciprocate between the placing and taking area and the detection area.

[0026] In the technical solution of the present utility model, an automatic optical inspection device and a product appearance inspection device are proposed. Among them, the automatic optical inspection device includes an inspection table, a two-axis motion mechanism and a feeding and returning mechanism. The inspection table forms an inspection surface, and the placing and taking area and the detection area are distinguished on the inspection surface. The feeding and returning mechanism includes a sliding seat slidably arranged on the inspection surface. The sliding seat can place the product to be tested, and the sliding seat can drive the product to be tested to reciprocate between the placing and taking area and the detection area. The two-axis motion mechanism includes an optical inspection component and a clamping component. The optical inspection component and the clamping component are both arranged on the slider and can move within a certain area. During the test, the staff places the product to be tested on the sliding seat located in the placing and taking area, and the sliding seat drives the product to be tested to move towards the detection area. The two-axis motion mechanism drives the optical inspection component to move to directly above the product to be tested to perform optical inspection on the product. If the product passes the optical inspection, the sliding seat is controlled to move towards the placing and taking area, and the staff takes out the qualified product for packaging; if the product fails the optical inspection, the clamping component is controlled to clamp the unqualified product and move it out of the sliding seat, and the above operations are repeated to perform optical inspection on the product. In this technical solution, the product can realize automatic feeding and discharging through the feeding and returning mechanism, and the unqualified products can be screened out through the clamping component, without manual intervention, improving the overall automation degree of the equipment. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0028] Figure 1 It is a schematic structural diagram of an embodiment of the automatic optical inspection device provided by the present utility model;

[0029] Figure 2 For Figure 1 The partial enlarged view of A in

[0030] Figure 3 is Figure 1 a schematic structural diagram of the middle cover body;

[0031] Figure 4 is a schematic structural diagram of another angle of the automatic optical inspection device provided by the present utility model;

[0032] Figure 5 is Figure 4 a partial enlarged view of position B in the figure.

[0033] Explanation of reference numerals in the drawings:

[0034] 1000, automatic optical inspection device; 1, detection table; 11, detection surface; 12, control panel; 13, first guide rail; 2, two-axis movement mechanism; 21, cross frame; 211, second guide rail; 22, vertical frame; 221, third guide rail; 23, slider; 24, industrial camera; 25, bracket; 26, clamping assembly; 261, extension plate; 262, bending part; 263, flexible clamping jaw; 3, feeding and returning mechanism; 31, sliding seat; 311, fixed seat; 312, profiling groove; 4, collection box; 5, light source assembly; 6, cover body.

[0035] The realization, functional features and advantages of the object of the present utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0037] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, if the embodiments of the present utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0039] An automatic optical inspection device is a type in industrial inspection systems. It uses optical technology and image processing technology to automatically detect product appearance defects, and is widely used in production lines to ensure product quality, improve production efficiency, and reduce human errors. The working principles of these devices include using various types of light sources to illuminate the products to be inspected, industrial cameras to capture product images, and transmitting the images to an image processing unit for analysis. The image processing unit is the brain of the automatic optical inspection device, using various algorithms to identify and distinguish normal features and defects of the products, such as scratches, dents, cracks, uneven colors, etc.

[0040] In the related art, the automatic optical inspection device is actually a semi-automatic device. When performing optical inspection on products, it is necessary to manually place the products under the industrial camera for optical inspection. If there are defective products, manual intervention is required to manually remove them. The entire optical inspection process requires staff to pay attention in real time, consuming a lot of manpower and having a low degree of automation.

[0041] To solve the above problems, the present utility model proposes an automatic optical inspection device, aiming to provide an automatic optical inspection device with a higher degree of automation. Figures 1 to 5 It is a schematic structural diagram of an embodiment provided by the automatic optical inspection device of the present utility model.

[0042] Please refer to Figures 1 to 5, the present utility model proposes an automatic optical inspection device 1000, which includes an inspection table 1, a two-axis movement mechanism 2 and a feeding and returning mechanism 3. The inspection table 1 is formed with an inspection surface 11, and the inspection surface 11 is formed with a placing and taking area and an inspection area. The two-axis movement mechanism 2 is arranged on the inspection table 1. The two-axis movement mechanism 2 is provided with a slider 23, and the slider 23 is provided with an optical inspection component and a clamping component 26. The optical inspection component forms an inspection end towards the inspection area. The optical inspection component and the clamping component 26 can approach or move away from the inspection surface 11. The feeding and returning mechanism 3 includes a sliding seat 31 slidably arranged on the inspection surface 11. The sliding seat 31 can approach or move away from the optical inspection component. The sliding seat 31 is formed with a placing groove for placing the product to be inspected. The sliding seat 31 is used to drive the product to be inspected to reciprocate between the placing and taking area and the inspection area.

[0043] In the technical solution of the present utility model, an automatic optical inspection device 1000 and a product appearance inspection device are proposed. Among them, the automatic optical inspection device 1000 includes an inspection table 1, a two-axis movement mechanism 2 and a feeding and returning mechanism 3. The inspection table 1 is formed with an inspection surface 11, and the placing and taking area and the inspection area are distinguished on the inspection surface 11. The feeding and returning mechanism 3 includes a sliding seat 31 slidably arranged on the inspection surface 11. The sliding seat 31 can be used to place the product to be inspected. The sliding seat 31 can drive the product to be inspected to reciprocate between the placing and taking area and the inspection area. The two-axis movement mechanism 2 includes an optical inspection component and a clamping component 26. The optical inspection component and the clamping component 26 are both arranged on the slider 23 and can move within a certain area. During the test, the staff places the product to be inspected on the sliding seat 31 located in the placing and taking area. The sliding seat 31 drives the product to be inspected to move towards the inspection area. The two-axis movement mechanism 2 drives the optical inspection component to move to directly above the product to be inspected to perform optical inspection on the product. If the product passes the optical inspection, the sliding seat 31 is controlled to move towards the placing and taking area, and the staff takes out the qualified product for packing; if the product fails the optical inspection, the clamping component 26 is controlled to clamp the defective product and move it out of the sliding seat 31, and the above operations are repeated to perform product optical inspection. In this technical solution, the product can realize automatic feeding and discharging through the feeding and returning mechanism 3, and the defective products can be screened out through the clamping component 26 without manual intervention, improving the overall automation degree of the equipment.

[0044] Further, to facilitate the picking and classification of defective inspection products, an extension plate 261 is extended from the slider 23 towards the inspection surface 11. Specifically, please further refer to Figure 1 and Figure 5, one end of the extension plate 261 close to the detection surface 11 is provided with a bending portion 262. The extension plate 261 and the bending portion 262 are integrally L-shaped and are obtained by a bending process. The clamping assembly 26 includes a flexible jaw 263. The flexible jaw 263 is arranged on the bending portion 262. The flexible jaw 263 is made of an elastic material. When the flexible jaw 263 clamps a defective product, a stronger frictional force can be obtained, so as to ensure a more reliable clamping and transfer. Further, the flexible jaw 263 can also prevent the product from being damaged due to excessive clamping force. Above the extension plate 261, there is an oblong hole, and the extension plate 261 is fixed to the slider 23 through this oblong hole. The extension plate 261 can be adjusted in the vertical direction through the oblong hole, so as to adapt to the picking of products with different heights.

[0045] In the technical solution of the present utility model, the clamping assembly 26 for picking defective products and the optical inspection assembly are arranged on the two-axis motion mechanism 2. The two-axis motion mechanism 2 can only drive the optical inspection assembly and the clamping assembly 26 to move along the directions of the second guide rail 211 and the third guide rail 221. Thus, it is necessary to manually place the product to be tested below the two-axis motion mechanism 2. To realize the automatic loading and unloading of the product to be tested, the feeding and returning mechanism 3 includes a first guide rail 13 arranged on the inspection table 1. Specifically, please further refer to Figure 3 , the sliding seat 31 slides on the first guide rail 13 and can slide from the placing and taking area to the detection area and return from the detection area to the placing and taking area. When performing the detection work, the staff places the product to be tested in the profiling groove 312 of the fixed seat 311. The sliding seat 31 drives the product to be tested on the fixed seat 311 to move from the placing and taking area to the detection area until it moves below the optical inspection assembly. The optical inspection assembly performs optical inspection on the product. If the product is a good product, the sliding seat 31 is controlled to slide out until it returns to the placing and taking area again, and the staff takes out and packages the product after the detection is completed; if the product is a defective product, the optical inspection assembly will feedback a control signal to the clamping assembly 26 to control the clamping assembly 26 to move down to clamp the defective product, and the defective product is transported to the collection box 4 on the side through the two-axis motion mechanism 2. Since the defective rate is usually about 3‰ during the detection process, only the staff needs to regularly clean the collection box 4 to ensure the normal operation of the equipment. The staff can turn on / off and adjust the equipment through the control panel 12 of the inspection table 1.

[0046] To ensure the reliability of optical inspection, the automatic optical inspection device 1000 further includes a light source assembly 5. Specifically, please further refer to Figure 1, the light source assembly 5 is arranged on the sliding seat 31 and is located below the fixed seat 311. The light source assembly 5 emits light towards the product during optical inspection, mainly to improve the accuracy and stability of the inspection. In an environment with insufficient light, supplementary lighting can provide the necessary illumination, enabling the optical inspection equipment to obtain clear images or signals, thereby performing precise analysis and processing. At the same time, supplementary lighting can also reduce the influence of ambient light changes on the inspection results, ensuring that the optical inspection product can work stably in various environments. To ensure that the light can shine on the surface of the product for supplementary lighting, so that the optical inspection assembly can easily detect surface defects of the product, a light-transmitting opening is formed at the bottom of the profiling groove 312, and the fixed opening is connected to the light-transmitting opening. The function of the light-transmitting opening is to expose the product to be inspected above the light source assembly 5, so that the product can be fully illuminated and the inspection accuracy can be improved.

[0047] To drive the movement of the optical inspection assembly and the clamping assembly 26, the two-axis motion mechanism 2 includes a cross frame 21, a vertical frame 22, and a slider 23. Specifically, please further refer to Figure 1 , the cross frame 21 is provided with a second guide rail 211, the vertical frame 22 is slidably limited on the second guide rail 211 and is provided with a third guide rail 221 perpendicular to the inspection surface 11. A slider 23 is slidably arranged on the third guide rail 221. The optical inspection assembly and the clamping assembly 26 are both arranged on the slider 23. It should be noted that the slider 23 can be driven by a worm and gear mechanism or by a screw and slider 23. The present invention does not limit this. In an embodiment of the present invention, the slider 23 is driven by a screw and slider 23 in cooperation with a motor, and the vertical frame 22 is also driven by a screw and slider 23. A bracket 25 for installing the industrial camera 24 is provided on the slider 23. Specifically, please further refer to Figure 2 , installing the industrial camera 24 on the bracket 25 can make the industrial camera 24 and the clamping assembly 26 arranged in a staggered manner, so as to avoid the clamping assembly 26 blocking the detection of the industrial camera 24.

[0048] To improve the safety and inspection accuracy of the equipment, the automatic optical inspection device 1000 further includes a cover 6. Specifically, please further refer to Figure 3 , the cover 6 is formed with a working space arranged on the inspection table 1 and jointly enclosed with the inspection table 1. The cover 6 can avoid the interference of ambient light on the industrial camera 24 and can also prevent the staff from accidentally touching the moving two-axis motion mechanism 2 to cause safety hazards. The cover 6 is composed of multiple plates spliced together. When internal mechanisms need to be repaired and replaced, quick disassembly of the cover 6 can be achieved, improving the flexibility of the equipment.

[0049] The present utility model also provides a product appearance detection device, which includes an automatic optical inspection device 1000. The specific structure of the automatic optical inspection device 1000 refers to the above embodiments. Since the product appearance detection device adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0050] The above is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. An automatic optical inspection device, characterized in that: include: A testing platform, wherein the testing platform is formed with a testing surface, and the testing surface is formed with a placing and taking area and a testing area; A two-axis motion mechanism, the two-axis motion mechanism is arranged on the detection platform, the two-axis motion mechanism is provided with a slider, the slider is provided with an optical detection component and a clamping component, the optical detection component is formed with a detection end facing the detection area, and the optical detection component and the clamping component can approach or move away from the detection surface; as well as The material return mechanism includes a sliding seat slidably arranged on the detection surface, the sliding seat can be close to or away from the optical detection component, the sliding seat is formed with a placement groove for placing the product to be tested, and the sliding seat is used to drive the product to be tested to reciprocate between the placement area and the detection area.

2. The automatic optical inspection device according to claim 1, characterized in that: The sliding block is provided with an extension plate extending toward the detection surface, and one end of the extension plate close to the detection surface is provided with a bending portion, and the clamping assembly includes a flexible clamping claw, and the flexible clamping claw is provided at the bending portion.

3. The automatic optical inspection device according to claim 2, characterized in that: The material return mechanism also includes: A first guide rail, wherein the first guide rail is disposed on the detection platform, and the sliding seat is slidably limited to the first guide rail; and A fixed seat, wherein the fixed seat is arranged on the sliding seat, and the fixed seat is formed with a contoured groove matching the shape of the product to be tested.

4. The automatic optical inspection device according to claim 3, characterized in that: The automatic optical inspection device further comprises a collection box, which is arranged on the inspection platform and located on one side of the first guide rail, and is used for collecting defective products.

5. The automatic optical inspection device according to claim 3, characterized in that: The automatic optical inspection device further comprises a light source assembly, which is arranged on the sliding seat and located below the fixed seat, and is used to provide light source to the product to be tested.

6. The automatic optical inspection device according to claim 5, characterized in that: The sliding seat is formed with a fixed opening, the bottom of the contoured groove is formed with a light-transmitting opening, and the fixed opening and the light-transmitting opening are communicated with each other so that the product to be tested is exposed to the light source assembly.

7. The automatic optical inspection device according to any one of claims 1 to 6, characterized in that: The two-axis motion mechanism comprises: A cross frame, the cross frame is arranged on the detection platform, and the cross frame is provided with a second guide rail; A vertical frame, wherein the vertical frame is slidably limited to the second guide rail and is provided with a third guide rail perpendicular to the detection surface; and A slider, wherein the sliding movement of the slider is limited to the third guide rail.

8. The automatic optical inspection device according to any one of claims 1 to 6, characterized in that: The optical inspection component includes a bracket and an industrial camera. The bracket is arranged on the slider, and the industrial camera is arranged on the bracket.

9. The automatic optical inspection device according to any one of claims 1 to 6, characterized in that: The automatic optical inspection device further comprises a cover body, which is arranged on the inspection platform and encloses a working space with the inspection platform, and the two-axis motion mechanism is arranged in the working space.

10. A product appearance inspection device, characterized in that: The invention comprises the automatic optical inspection device as claimed in any one of claims 1 to 9.

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