CN219434699U

CN219434699U - Visual inspection apparatus

Info

Publication number: CN219434699U
Application number: CN202223297818.3U
Authority: CN
Inventors: 郝祥友; 李�杰
Original assignee: Zhuhai Hengcang Electronic Technology Co ltd
Current assignee: Zhuhai Hengcang Electronic Technology Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-07-28
Anticipated expiration: 2032-12-08

Abstract

The visual detection equipment provided by the utility model comprises a machine body, a camera device and a light source, wherein the camera device and the light source are arranged in the machine body; the visual inspection device also comprises a light-transmitting plate, wherein the light-transmitting plate comprises an incident surface and an emergent surface which are oppositely arranged, and the incident surface is a diffusion surface; the detection space comprises an installation position and a position to be detected which are arranged from top to bottom; the light-transmitting plate is arranged in the detection space and positioned at the installation position, the incident surface faces upwards and is opposite to the light source, and the emergent surface faces downwards and faces to the position to be detected. The utility model solves the problem of visual identification error reporting by adding a light-transmitting plate. The light-transmitting plate with the diffuse reflection surface is mainly used for improving the lighting effect and enhancing the contrast of the photo color block, so that the system can identify key caps or character outlines, error reporting is avoided, smooth detection is ensured, and the reconstruction cost is lower.

Description

Visual inspection apparatus

Technical Field

The utility model relates to the technical field of detection instruments, in particular to visual detection equipment.

Background

In the production process of the mechanical keyboard, visual detection equipment is applied to carry out visual detection on the installation of the key caps of the mechanical keyboard. Generally, a high-definition camera device and a light source are arranged in the visual detection device, after a mechanical keyboard provided with a key cap is sent into a detection space, after the light source above the mechanical keyboard is lighted, the high-definition camera device shoots and generates a picture, and whether the outline of the key cap and the character outline on the key cap are matched with a preset reference or not is recognized through a software system, so that whether the key cap is accurately installed or not is judged.

The problem that exists when current visual detection equipment is used for carrying out visual detection to the key cap installation of mechanical keyboard is that, because keyboard shell, key cap and character color matching are various, the character color of some mechanical keyboards is fairly close with the key cap color, perhaps the key cap color is fairly close with the keyboard shell, can lead to visual detection equipment unable accurate discernment character profile or key cap profile, therefore report the mistake.

Disclosure of Invention

The utility model aims to provide a visual detection device which solves the problem of error reporting caused by close color matching of a shell, a key cap and characters and has the characteristic of low cost.

The visual detection equipment provided by the utility model comprises a machine body, a camera device and a light source, wherein the camera device and the light source are arranged in the machine body; the visual inspection device also comprises a light-transmitting plate, wherein the light-transmitting plate comprises an incident surface and an emergent surface which are oppositely arranged, and the incident surface is a diffusion surface; the detection space comprises an installation position and a position to be detected which are arranged from top to bottom; the light-transmitting plate is arranged in the detection space and positioned at the installation position, the incident surface faces upwards and is opposite to the light source, and the emergent surface faces downwards and faces to the position to be detected.

According to the scheme, the problem of visual identification error reporting is solved by adding the light-transmitting plate. The light-transmitting plate with the diffuse reflection surface is arranged below the light source to improve the lighting effect and enhance the contrast of the photo color block, so that the system can identify key caps or character outlines, error reporting is avoided, and smooth detection is ensured. The technical problem of the utility model only appears in the visual detection process of a small part of keyboard products, the utility model does not need to redesign the algorithm of the visual detection equipment, is beneficial to keeping the stability and accuracy of the identification detection of other keyboard products by the visual equipment, and has lower reconstruction cost.

The further proposal is that the light-transmitting plate is made of PET plastic.

Therefore, the material cost can be further reduced by the arrangement.

Still further, the exit face is a diffusing surface.

From the above, the two sides of the lower light-transmitting plate are diffusion surfaces, the light-transmitting plate is arranged without judging the upper and lower positive and negative directions, and the fool-proof effect is generated for the installation of the light-transmitting plate on the premise of ensuring the light treatment effect.

Still further, the light-transmitting plate is a white plate.

Therefore, the arrangement can avoid the influence of the color of the light-transmitting plate on emergent light and the quality of the photo.

Further, the light transmittance of the light-transmitting plate is more than 50%.

From the above, the arrangement can ensure the lighting effect and the photo quality.

Further, the light-transmitting plate is detachably arranged in the detection space.

From the above, because the technical problem of reporting errors only appears in the visual detection process of a small part of keyboard products, the problem does not exist in the visual detection process of more keyboard products, and the detachable mode of the light-transmitting plate can enable the visual identification equipment to be suitable for visual detection of various keyboard products.

In a still further scheme, the detection space is provided with a space inlet arranged along the horizontal direction, and the installation position is communicated with the space inlet along the horizontal direction; the light-transmitting plate is detachably disposed at the mounting position from the space entrance.

From the above, the product and the light-transmitting plate can be put in from the space opening which is horizontally arranged, so that the operation of personnel is convenient.

Still further, the inner wall surface of the detection space is provided with clamping grooves, the clamping grooves are arranged along the horizontal direction, two clamping grooves are respectively arranged at two opposite sides of the installation position, and the inlets of the clamping grooves are communicated with the space inlet; the edges of the two sides of the light-transmitting plate are respectively matched with the two clamping grooves.

From the above, the arrangement is favorable for the detachable installation and the position maintenance of the light-transmitting plate.

Drawings

Fig. 1 is a block diagram of a first view angle of a first embodiment of a visual inspection apparatus according to the present utility model.

Fig. 2 is a block diagram of a second view angle of the first embodiment of the visual inspection apparatus of the present utility model.

Fig. 3 is a schematic structural view of the first embodiment of the visual inspection apparatus of the present utility model in a sectional state.

Fig. 4 is a schematic structural view of a second embodiment of the visual inspection apparatus of the present utility model.

Detailed Description

First embodiment of visual inspection apparatus

Referring to fig. 1 to 3, the visual inspection apparatus includes a body 1, an image pickup device 21 and a light source 22 provided in the body 1, and a light-transmitting plate 3 detachably provided in the body 1.

The whole machine body 1 is cuboid, and the camera device 21 and the light source 22 are arranged at the upper part of the interior of the machine body 1 and downward; inside the body 1, a detection space 100 is formed directly below the imaging device 21 and the light source 22. The lower part of the front side wall of the machine body 1 is provided with a space inlet 101 which is arranged along the horizontal direction and is communicated with the detection space 100, and the space inlet 101 is used as a placement inlet of a keyboard to be detected and is also a disassembly and assembly inlet of the light-transmitting plate 3.

The detection space 100 comprises a mounting position 110 and a position to be detected 120 which are arranged from top to bottom, the mounting position 110 is communicated with the space inlet 101 in the horizontal direction, the position to be detected 120 is communicated with the space inlet 101 in the horizontal direction, the light-transmitting plate 3 is detachably arranged in the mounting position 110 through the space inlet 101, the keyboard 9 to be detected is placed in the position to be detected 120, and the light-transmitting plate 3 is located right above the keyboard 9 to be detected.

The light-transmitting plate 3 is made of PET plastic, the light-transmitting plate 3 is a white plate, the light-transmitting plate 3 comprises an incident surface 31 and an emergent surface 32 which are oppositely arranged, in the embodiment, the light transmittance of the light-transmitting plate 3 is more than 80%, and the incident surface 31 and the emergent surface 32 are diffusion surfaces. The incident surface 31 of the light-transmitting plate 3 faces upward and is opposite to the light source 22, and the exit surface 32 of the light-transmitting plate 3 faces downward and faces the keyboard 9 to be inspected at the position 120 to be inspected.

The utility model solves the problem of visual identification error reporting by adding a light-transmitting plate 3 to visual detection equipment. The light-transmitting plate 3 with a diffuse reflection surface is arranged below the light source 22 to improve the lighting effect and enhance the contrast of the color blocks of the photo, so that the system can identify key caps or character outlines, avoid error reporting and ensure smooth detection. The technical problem of the utility model only appears in the visual detection process of a small part of keyboard products, the utility model does not need to redesign the algorithm of the visual detection equipment, is beneficial to keeping the stability and accuracy of the identification detection of other keyboard products by the visual equipment, and has lower reconstruction cost.

Further, since the technical problem of error reporting only occurs in the visual inspection process of a small portion of keyboard products, the problem does not exist in the visual inspection process of more keyboard products, and the detachable mode of the light-transmitting plate 3 can enable the visual recognition device to be suitable for visual inspection of various keyboard products.

Second embodiment of visual inspection apparatus

Referring to fig. 4, in the present embodiment, two clamping groove members 23 are installed on two sides of the width in the detection space 100 of the machine body 1, clamping grooves 230 are provided on the clamping groove members 23, the grooves 230 are provided along the horizontal direction, two clamping grooves 230 are respectively provided on two opposite sides of the installation position 110, and the inlets of the clamping grooves 230 are communicated with the space inlet 101; the two side edges of the light-transmitting plate 3 are respectively matched with the two clamping grooves 230.

With this arrangement, the light barrier 3 can be mounted in the two card slots 230 in a drawing manner or taken out from the two card slots 230, and the light barrier 3 fixed by the two card slots 230 is not only easy to be dismounted but also stable to be mounted.

In other embodiments, the exit face of the light-transmitting panel is not a diffusing surface.

Finally, it should be emphasized that the foregoing description is merely illustrative of the preferred embodiments of the utility model, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the utility model, and any such modifications, equivalents, improvements, etc. are intended to be included within the scope of the utility model.

Claims

1. The visual detection equipment comprises a machine body, an imaging device and a light source, wherein the imaging device and the light source are arranged in the machine body, and a detection space is arranged below the imaging device and the light source;

the method is characterized in that:

the visual inspection device further comprises a light-transmitting plate, wherein the light-transmitting plate comprises an incidence surface and an emergent surface which are oppositely arranged, and the incidence surface is a diffusion surface;

the detection space comprises an installation position and a position to be detected which are arranged from top to bottom;

the light-transmitting plate is arranged in the detection space and located at the installation position, the incident surface faces upwards and is opposite to the light source, and the emergent surface faces downwards and faces to the position to be detected.

2. The visual inspection apparatus of claim 1, wherein:

the light-transmitting plate is made of PET plastic.

3. The visual inspection apparatus of claim 2, wherein:

the exit face is a diffusing surface.

4. The visual inspection apparatus of claim 2, wherein:

the light-transmitting plate is a white plate.

5. The visual inspection apparatus according to any one of claims 1 to 4, wherein:

the light transmittance of the light-transmitting plate is more than 50%.

6. The visual inspection apparatus according to any one of claims 1 to 4, wherein:

the light-transmitting plate is detachably arranged in the detection space.

7. The visual inspection apparatus of claim 6, wherein:

the detection space is provided with a space inlet arranged along the horizontal direction, and the installation position is communicated with the space inlet along the horizontal direction;

the light-transmitting plate is detachably disposed at the mounting position from the space inlet.

8. The visual inspection apparatus of claim 7, wherein:

the detection space is internally provided with clamping grooves which are arranged along the horizontal direction, the two clamping grooves are respectively arranged on two opposite sides of the installation position, and the inlet of each clamping groove is communicated with the space inlet;

the edges of the two sides of the light-transmitting plate are respectively matched with the two clamping grooves.