CN221038729U - Notebook keyboard outward appearance flaw detection machine - Google Patents
Notebook keyboard outward appearance flaw detection machine Download PDFInfo
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- CN221038729U CN221038729U CN202322416069.XU CN202322416069U CN221038729U CN 221038729 U CN221038729 U CN 221038729U CN 202322416069 U CN202322416069 U CN 202322416069U CN 221038729 U CN221038729 U CN 221038729U
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Abstract
The utility model discloses a notebook keyboard appearance flaw detector, which comprises: the device comprises a machine base, a transplanting module used for conveying a notebook keyboard, a machine frame arranged above the transplanting module, a lifting mechanism arranged on the machine frame, a horizontal position adjusting module arranged at the lower end of the lifting mechanism and driven by the lifting mechanism to lift, a camera arranged at the lower end of the horizontal position adjusting module and driven by the horizontal position adjusting module to move horizontally, an upper inclined light source mechanism which is obliquely arranged in the machine frame and is matched with the camera in a manner of adjusting an inclined angle, a horizontal light source mechanism which is arranged on the machine base and is matched with the camera, and a code scanner which is arranged in the machine frame in a manner of adjusting a relative position and is used for scanning the notebook keyboard to obtain product information, wherein the camera is positioned above the transplanting module and is used for photographing the notebook keyboard; the horizontal light source mechanism is arranged at the side edge of the transplanting module.
Description
Technical field:
The utility model relates to the technical field of automation, in particular to a notebook keyboard appearance flaw detector.
The background technology is as follows:
At present, in the production process of a notebook computer, flaw detection needs to be carried out on the appearance of a notebook keyboard, and the existing detection is generally realized by manpower. However, the appearance of the notebook keyboard is observed manually through human eyes to detect flaws, so that the labor intensity is high, eyes are easy to fatigue, flaw detection effects are not ideal, and the working efficiency is not high.
With the continuous development of automation technology, in order to reduce the labor cost, machine vision inspection is adopted in the market, namely, a camera is used for photographing a keyboard, an image processing system is used for judging that a photographed picture is compared with a standard flaw-free picture in a comparison pool, and the flaw position of an actual product (keyboard) is judged, so that the purpose of flaw inspection is achieved.
The Chinese patent application No. 202110296915.1 discloses an appearance surface flaw detection device and a detection method, which are used for detecting flaws of the appearance surface of a product, wherein the appearance surface flaw detection device comprises: the transplanting mechanism is used for bearing the product and driving the product to move; the first detection mechanism is arranged in a path range through which the transplanting mechanism drives the product to move, and is used for irradiating detection light perpendicular to the appearance surface to the product and collecting images of the appearance surface to generate a first image; the second detection mechanism is arranged in a path range through which the transplanting mechanism drives the product to move, and is used for irradiating detection light which surrounds the edge of the appearance surface and is inclined to the appearance surface on the product, and collecting images of the appearance surface to generate a second image; the processing mechanism is in communication connection with the first detection mechanism and the second detection mechanism and is used for judging flaws of the first image and the second image of the same product respectively. The appearance surface flaw detection device and the detection method can automatically detect the appearance surface flaws of the product, so that the manual strength is reduced, and the detection precision is improved.
However, the appearance surface flaw detection device and the detection method can not directly scan codes to obtain information such as product model numbers, and can not automatically realize quick and accurate sorting of good products and defective products and tracking registration. The cameras of the first detection mechanism and the second detection mechanism are fixed and cannot move, so that the use is inconvenient, and the camera is not applicable to products of different types or different sizes. Meanwhile, the first detection mechanism and the second detection mechanism are both provided with only one vertical light source, however, the notebook keyboard is a stereoscopic product, detection in multiple directions is required to be carried out on the notebook keyboard, and only one vertical light source is adopted, so that a shadow appears at a local position of the notebook keyboard, and the requirements of clear imaging at each position cannot be met, namely the flaw detection side on the appearance of the notebook keyboard cannot be well met.
In view of this, the present inventors have proposed the following means.
The utility model comprises the following steps:
The utility model aims to overcome the defects of the prior art and provides a notebook keyboard appearance flaw detector.
In order to solve the technical problems, the utility model adopts the following technical scheme: this notebook keyboard outward appearance flaw detects machine includes: the device comprises a machine base, a transplanting module used for conveying a notebook keyboard, a machine frame arranged above the transplanting module, a lifting mechanism arranged on the machine frame, a horizontal position adjusting module arranged at the lower end of the lifting mechanism and driven by the lifting mechanism to lift, a camera arranged at the lower end of the horizontal position adjusting module and driven by the horizontal position adjusting module to move horizontally, an upper inclined light source mechanism which is obliquely arranged in the machine frame and is matched with the camera in a manner of adjusting an inclined angle, a horizontal light source mechanism which is arranged on the machine base and is matched with the camera, and a code scanner which is arranged in the machine frame in a manner of adjusting a relative position and is used for scanning the notebook keyboard to obtain product information, wherein the camera is positioned above the transplanting module and is used for photographing the notebook keyboard; the horizontal light source mechanism is arranged at the side edge of the transplanting module.
Furthermore, in the above technical scheme, the code scanner is installed in the frame through the joint module in a multi-angle multi-azimuth adjustment mode.
Furthermore, in the above technical scheme, the joint module comprises a fixing seat, a first universal head arranged at the lower end of the fixing seat, a first joint arm sleeved on the first universal head and capable of rotating at any angle, a second joint arm arranged at the tail end of the first joint arm and capable of rotating relative to the first joint arm, a second universal head arranged at the tail end of the second joint arm and capable of rotating at any angle relative to the second joint arm, and a mounting seat arranged at the lower end of the second universal head, wherein the code scanner is arranged on the mounting seat.
In the above technical solution, the number of the horizontal light source mechanisms is two, and the horizontal light source mechanisms are respectively arranged at two sides of the transplanting module; the horizontal light source mechanism comprises a first vertical frame arranged on the machine base, a horizontal light source arranged on the first vertical frame in an angle-adjustable mode and a radiator arranged at the upper end of the horizontal light source, wherein the horizontal light source is L-shaped, and a first light-emitting surface of the horizontal light source horizontally faces to a notebook keyboard on the transplanting module.
Furthermore, in the above technical scheme, the upper inclined light source mechanism comprises an end seat fixed in the frame, a rotatable shaft body penetrating the end seat, a rotating frame fixed on the shaft body, and an upper inclined light source installed in the rotating frame, wherein the second light emitting surface of the upper inclined light source is inclined from top to bottom towards the notebook keyboard on the transplanting module.
Furthermore, in the above technical scheme, the end seat is provided with an angle scale plate, a plurality of angle scales and numerical values corresponding to the angle scales are arranged on the angle scale plate, a pointer seat is arranged on the rotating frame, the pointer seat leans against the angle scale plate, and the pointer seat is provided with pointer lines adapted to the angle scales.
In the technical scheme, the lifting mechanism comprises a plurality of guide rods vertically arranged in the frame, a lifting frame sleeved on the periphery of the guide rods and capable of sliding up and down relative to the guide rods, a first screw rod and a second screw rod rotatably arranged in the frame and used for driving the lifting frame to move up and down, a first belt pulley and a second belt pulley respectively arranged on the first screw rod and the second screw rod, a synchronous belt connected between the first belt pulley and the second belt pulley, and a first motor used for driving the first screw rod to rotate; the horizontal position adjusting module is arranged on the lifting frame.
In the technical scheme, the horizontal position adjusting module comprises a base, a sliding rod, a sliding seat, a screw rod and an adjusting hand wheel, wherein the base is arranged on the lifting frame, the sliding rod is arranged in the base and is horizontally distributed, the sliding seat is sleeved on the sliding rod and can slide relative to the sliding rod, the screw rod is rotatably arranged in the base and is used for driving the sliding seat to horizontally move in the sliding rod, and the adjusting hand wheel is arranged at the tail end of the screw rod and is positioned at the outer side of the base; the camera is arranged on the sliding seat through a mounting frame and is arranged below the lifting frame.
Furthermore, in the above technical scheme, a casing is provided on the stand, the casing covers the transplanting module, the frame, the lifting mechanism, the horizontal position adjusting module, the camera, the upper inclined light source mechanism and the horizontal light source mechanism, and two ends of the transplanting module extend out of two ends of the casing.
By adopting the technical scheme, compared with the prior art, the utility model has the following beneficial effects: the utility model is additionally provided with the code scanner for scanning the notebook keyboard to obtain product information, and when the transplanting module moves the notebook keyboard to a preset position, the code scanner directly scans the bar code or the two-dimensional code of the notebook keyboard to obtain the product information, so that the sorting of good products and defective products can be automatically and rapidly and accurately realized in the later period, and tracking registration is performed. In addition, the camera can adjust the height and the horizontal position through the lifting mechanism and the horizontal position adjusting module, so as to meet different requirements, and the camera is very convenient to use and can be suitable for different types or different sizes of products; in addition, the utility model adopts the upper inclined light source mechanism and the horizontal light source mechanism with adjustable angles to provide sufficient light sources for the notebook keyboard on the transplanting module, so that no dark area/shadow exists on the notebook keyboard, the requirements of clear imaging of each position of the notebook keyboard can be realized, and the flaw detection side of the appearance of the notebook keyboard can be well realized.
Description of the drawings:
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is a perspective view of a horizontal light source mechanism in accordance with the present utility model;
FIG. 3 is a perspective view of the utility model with the chassis removed;
FIG. 4 is an assembly view of the frame and lift mechanism, upper tilt light source mechanism, and camera and code scanner of the present utility model;
FIG. 5 is an assembly view of the frame and lift mechanism, upper tilt light source mechanism, and camera and code scanner from another perspective in accordance with the present utility model;
FIG. 6 is a perspective view of an upper oblique light source mechanism of the present utility model;
Fig. 7 is an assembly view of the code scanner of the present utility model.
The specific embodiment is as follows:
the utility model will be further described with reference to specific examples and figures.
1-7, A flaw detector for appearance of a notebook keyboard comprises: the portable notebook keyboard comprises a machine base 1, a transplanting module 2 for conveying a notebook keyboard 20, a machine frame 11 erected above the transplanting module 2, a lifting mechanism 3 installed on the machine frame 11, a horizontal position adjusting module 4 installed at the lower end of the lifting mechanism 3 and driven by the lifting mechanism 3 to realize lifting, a camera 5 installed at the lower end of the horizontal position adjusting module 4 and driven by the horizontal position adjusting module 4 to move horizontally, an upper inclined light source mechanism 6 installed in the machine frame 11 in a manner of adjusting an inclined angle and adapted to the camera 5, a horizontal light source mechanism 7 installed on the machine base 1 and adapted to the camera 5, and a code scanner 8 installed in the machine frame 11 in a manner of adjusting a relative position and used for scanning the notebook keyboard 20 to obtain product information, wherein the camera 5 is positioned above the transplanting module 2 and used for photographing the notebook keyboard 20; the horizontal light source mechanism 7 is arranged at the side edge of the transplanting module 2. That is, the utility model is additionally provided with the code scanner 8 for scanning the notebook keyboard 20 to obtain product information, and when the transplanting module 2 moves the notebook keyboard 20 to a preset position, the code scanner 8 directly scans the bar code or the two-dimensional code of the notebook keyboard 20 to obtain the product information, so that the sorting of good products and defective products can be automatically and rapidly and accurately realized in the later period, and tracking registration can be performed. Furthermore, the camera 5 can adjust the height and the horizontal position through the lifting mechanism 3 and the horizontal position adjusting module 4 so as to meet different requirements, is very convenient to use, and can be suitable for products of different types or different sizes; in addition, the utility model adopts the upper inclined light source mechanism 6 and the horizontal light source mechanism 7 with adjustable angles to provide sufficient light sources for the notebook keyboard 20 on the transplanting module 2, so that no dark area/shadow exists on the notebook keyboard 20, the requirement of clear imaging of each position of the notebook keyboard 20 can be realized, and the flaw detection side of the appearance of the notebook keyboard can be well realized.
The code scanner 8 is installed in the frame 11 in a multi-angle and multi-azimuth adjustment mode through the joint module 81. That is, the angle and the azimuth of the code scanner 8 can be adjusted to move to a proper position, so that the code scanner 8 can precisely scan the bar code or the two-dimensional code of the notebook keyboard 20 to obtain the product information, and the use is very convenient.
Specifically, the joint module 81 includes a fixing seat 811, a first universal head 812 disposed at a lower end of the fixing seat 811, a first joint arm 813 sleeved on the first universal head 812 and capable of rotating at any angle, a second joint arm 814 disposed at an end of the first joint arm 813 and capable of rotating relative to the first joint arm 813, a second universal head 815 mounted at an end of the second joint arm 814 and capable of rotating at any angle relative to the second joint arm 814, and an installation seat 816 disposed at a lower end of the second universal head 815, wherein the code scanner 8 is mounted on the installation seat 816. Wherein the first joint arm 813 has a first spherical groove in which the first universal head 812 is mounted, and the second joint arm 814 has a second spherical groove such that multi-angle rotation can be achieved, and the second universal head 815 is mounted in the second spherical groove such that multi-angle rotation can be achieved. The joint module 81 can realize extension and shortening, and can also realize control of the code scanner 8 at different spatial positions and angles.
The number of the horizontal light source mechanisms 7 is two, and the horizontal light source mechanisms are respectively arranged at two sides of the transplanting module 2, so that the notebook keyboard 20 can be polished better, and no shadow exists on the notebook keyboard 20. The horizontal light source mechanism 7 comprises a first stand 71 installed on the machine base 1, a horizontal light source 72 installed on the first stand 71 in an angle-adjustable manner, and a radiator 73 installed at the upper end of the horizontal light source 72, wherein the horizontal light source 72 is L-shaped, and a first light emitting surface 721 of the horizontal light source 72 horizontally faces the notebook keyboard 20 on the transplanting module 2, so that horizontal lighting of the notebook keyboard 20 can be better realized, shadows on the notebook keyboard 20 can be reduced or eliminated, and photographing quality can be improved.
The upper inclined light source mechanism 6 comprises an end seat 61 fixed in the frame 11, a rotatable shaft 62 penetrating the end seat 61, a rotating frame 63 fixed on the shaft 62, and an upper inclined light source 64 installed in the rotating frame 63, wherein the second light emitting surface 641 of the upper inclined light source 64 is inclined from top to bottom towards the notebook keyboard 20 on the transplanting module 2. When the angle of the upper inclined light source 64 needs to be adjusted, the rotating frame 63 is directly driven to rotate, and the operation is very convenient. In addition, the end seat 61 is provided with an angle scale plate 65, a plurality of angle scales 651 and numerical values 652 corresponding to the angle scales 651 are arranged on the angle scale plate 65, a pointer seat 66 is arranged on the rotating frame 63, the pointer seat 66 leans against the angle scale plate 65, and the pointer seat 66 is provided with pointer lines 661 matched with the angle scales 651, so that the rotating angle of the rotating frame 63 can be accurately controlled, and the operation and control are convenient.
The lifting mechanism 3 comprises a plurality of guide rods 31 vertically arranged in the frame 11, a lifting frame 32 sleeved on the periphery of the guide rods 31 and capable of sliding up and down relative to the guide rods 31, a first screw rod 33 and a second screw rod 34 rotatably arranged in the frame 11 and used for driving the lifting frame 32 to move up and down, a first belt pulley 35 and a second belt pulley 36 respectively arranged on the first screw rod 33 and the second screw rod 34, a synchronous belt 37 connected between the first belt pulley 35 and the second belt pulley 36, and a first motor 38 used for driving the first screw rod 33 to rotate; the synchronous belt 37 is matched with the first belt pulley 35 and the second belt pulley 36, so that the first screw rod 33 and the second screw rod 34 can be driven to synchronously rotate, the purpose of stably driving the lifting frame 32 to lift is achieved, and the horizontal position adjusting module 4 is arranged on the lifting frame 32. The lifting frame 32 is provided with a first thread bush and a second thread bush, and the first screw rod 33 and the second screw rod 34 conveniently penetrate through the first thread bush and the second thread bush, so that the lifting frame 32 can be driven to slide up and down relative to the guide rod 31 when the first screw rod 33 and the second screw rod 34 rotate, and the lifting purpose is realized.
The horizontal position adjusting module 4 comprises a base 41 installed on the lifting frame 32, a sliding rod 42 installed in the base 41 and distributed horizontally, a sliding seat 43 sleeved on the sliding rod 42 and capable of sliding relative to the sliding rod 42, a screw 44 rotatably installed in the base 41 and used for driving the sliding seat 43 to move horizontally in the sliding rod 42, and an adjusting hand wheel 45 installed at the tail end of the screw 44, wherein the adjusting hand wheel 45 is positioned outside the base 41; the camera 5 is mounted on the slide mount 43 by a mounting bracket 51 and is positioned below the elevator 32. During operation, the adjusting hand wheel 45 is rotated by hand to drive the screw rod 44 to rotate, and the screw rod 44 can drive the sliding seat 43 to horizontally move on the sliding rod 42 during the rotation process, so as to drive the camera 5 to horizontally move, wherein the horizontal position adjusting module 4 is used for finely adjusting the horizontal position of the camera 5.
The machine base 1 is provided with a machine shell 12, the machine shell 12 covers the transplanting module 2, the machine frame 11, the lifting mechanism 3, the horizontal position adjusting module 4, the camera 5, the upper inclined light source mechanism 6 and the horizontal light source mechanism 7, and two ends of the transplanting module 2 extend out of two ends of the machine shell 12.
In summary, the code scanner 8 for scanning the notebook keyboard 20 to obtain product information is additionally provided in the present utility model, and when the transplanting module 2 moves the notebook keyboard 20 to a predetermined position, the code scanner 8 directly scans the bar code or the two-dimensional code of the notebook keyboard 20 to obtain product information, so that the sorting of good products and defective products can be automatically and rapidly performed in the later period, and tracking registration can be performed. Furthermore, the camera 5 can adjust the height and the horizontal position through the lifting mechanism 3 and the horizontal position adjusting module 4 so as to meet different requirements, is very convenient to use, and can be suitable for products of different types or different sizes; in addition, the utility model adopts the upper inclined light source mechanism 6 and the horizontal light source mechanism 7 with adjustable angles to provide sufficient light sources for the notebook keyboard 20 on the transplanting module 2, so that no dark area/shadow exists on the notebook keyboard 20, the requirement of clear imaging of each position of the notebook keyboard 20 can be realized, and the flaw detection side of the appearance of the notebook keyboard can be well realized.
It is understood that the foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, but rather is to be accorded the full scope of all such modifications and equivalent structures, features and principles as set forth herein.
Claims (9)
1. The utility model provides a notebook keyboard outward appearance flaw detection machine which characterized in that: it comprises the following steps: the portable notebook keyboard comprises a machine base (1), a transplanting module (2) for conveying a notebook keyboard (20), a frame (11) erected above the transplanting module (2), a lifting mechanism (3) installed on the frame (11), a horizontal position adjusting module (4) installed at the lower end of the lifting mechanism (3) and driven by the lifting mechanism (3) to achieve lifting, a camera (5) installed at the lower end of the horizontal position adjusting module (4) and driven by the horizontal position adjusting module (4) to move horizontally, an upper inclined light source mechanism (6) installed in the frame (11) in a manner of adjusting an inclined angle and matched with the camera (5) in an inclined manner, and a horizontal light source mechanism (7) installed on the machine base (1) and matched with the camera (5), and a code scanner (8) installed in the frame (11) in a manner of adjusting a relative position and used for scanning the notebook keyboard (20) to obtain product information, wherein the camera (5) is located above the transplanting module (2) and used for photographing the notebook keyboard (20); the horizontal light source mechanism (7) is arranged at the side edge of the transplanting module (2).
2. The machine for detecting appearance defects of a notebook keyboard according to claim 1, wherein: the code scanner (8) is installed in the frame (11) through the joint module (81) in a multi-angle multi-azimuth adjusting mode.
3. The machine for detecting appearance defects of a notebook keyboard according to claim 2, wherein: the joint module (81) comprises a fixing seat (811), a first universal head (812) arranged at the lower end of the fixing seat (811), a first joint arm (813) sleeved on the first universal head (812) and capable of rotating at any angle, a second joint arm (814) arranged at the tail end of the first joint arm (813) and capable of rotating relative to the first joint arm (813), a second universal head (815) arranged at the tail end of the second joint arm (814) and capable of rotating at any angle relative to the second joint arm (814), and a mounting seat (816) arranged at the lower end of the second universal head (815), wherein the code scanner (8) is mounted on the mounting seat (816).
4. A notebook keyboard visual flaw detector according to any one of claims 1-3, wherein: the number of the horizontal light source mechanisms (7) is two, and the horizontal light source mechanisms are respectively arranged at two sides of the transplanting module (2); the horizontal light source mechanism (7) comprises a first vertical frame (71) arranged on the machine base (1), a horizontal light source (72) arranged on the first vertical frame (71) in an angle-adjustable mode and a radiator (73) arranged at the upper end of the horizontal light source (72), wherein the horizontal light source (72) is L-shaped, and a first light emitting surface (721) of the horizontal light source (72) horizontally faces to a notebook keyboard (20) on the transplanting module (2).
5. A notebook keyboard visual flaw detector according to any one of claims 1-3, wherein: the upper inclined light source mechanism (6) comprises an end seat (61) fixed in the frame (11), a shaft body (62) penetrating in the end seat (61) and capable of rotating, a rotating frame (63) fixed on the shaft body (62) and an upper inclined light source (64) installed in the rotating frame (63), wherein a second light emitting surface (641) of the upper inclined light source (64) is inclined from top to bottom towards the notebook keyboard (20) on the transplanting module (2).
6. The machine for detecting appearance defects of a notebook keyboard according to claim 5, wherein: the end seat (61) is provided with an angle scale plate (65), a plurality of angle scales (651) and numerical values (652) corresponding to the angle scales (651) are arranged on the angle scale plate (65), a pointer seat (66) is arranged on the rotating frame (63), the pointer seat (66) leans against the angle scale plate (65), and the pointer seat (66) is provided with pointer lines (661) matched with the angle scales (651).
7. The machine for detecting appearance defects of a notebook keyboard according to claim 5, wherein: the lifting mechanism (3) comprises a plurality of guide rods (31) vertically arranged in the frame (11), lifting frames (32) sleeved on the periphery of the guide rods (31) and capable of sliding up and down relative to the guide rods (31), a first screw rod (33) and a second screw rod (34) rotatably arranged in the frame (11) and used for driving the lifting frames (32) to move up and down, a first belt pulley (35) and a second belt pulley (36) respectively arranged on the first screw rod (33) and the second screw rod (34), a synchronous belt (37) connected between the first belt pulley (35) and the second belt pulley (36) and a first motor (38) used for driving the first screw rod (33) to rotate; the horizontal position adjusting module (4) is arranged on the lifting frame (32).
8. The machine for detecting appearance defects of a notebook keyboard according to claim 7, wherein: the horizontal position adjusting module (4) comprises a base (41) arranged on the lifting frame (32), sliding rods (42) arranged in the base (41) and distributed horizontally, sliding seats (43) sleeved on the sliding rods (42) and capable of sliding relative to the sliding rods (42), a screw rod (44) rotatably arranged in the base (41) and used for driving the sliding seats (43) to move horizontally in the sliding rods (42), and an adjusting hand wheel (45) arranged at the tail end of the screw rod (44), wherein the adjusting hand wheel (45) is positioned outside the base (41); the camera (5) is mounted on the sliding seat (43) through a mounting frame (51) and is arranged below the lifting frame (32).
9. The machine for detecting appearance defects of a notebook keyboard according to claim 4, wherein: the novel transplanting machine is characterized in that a casing (12) is arranged on the machine base (1), the casing (12) covers the transplanting module (2), the frame (11), the lifting mechanism (3), the horizontal position adjusting module (4), the camera (5), the upper inclined light source mechanism (6) and the horizontal light source mechanism (7), and two ends of the transplanting module (2) extend out of two ends of the casing (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322416069.XU CN221038729U (en) | 2023-09-05 | 2023-09-05 | Notebook keyboard outward appearance flaw detection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322416069.XU CN221038729U (en) | 2023-09-05 | 2023-09-05 | Notebook keyboard outward appearance flaw detection machine |
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| Publication Number | Publication Date |
|---|---|
| CN221038729U true CN221038729U (en) | 2024-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322416069.XU Active CN221038729U (en) | 2023-09-05 | 2023-09-05 | Notebook keyboard outward appearance flaw detection machine |
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| Country | Link |
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| CN (1) | CN221038729U (en) |
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2023
- 2023-09-05 CN CN202322416069.XU patent/CN221038729U/en active Active
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