Keyboard flaw detection device based on machine vision

Abstract

The utility model relates to the technical field of keyboard detection, in particular to a keyboard flaw detection device based on machine vision. Comprising a device base, a detection machine body is arranged at the top of the device base, a detection inlet is formed in one side wall of the detection machine body, a detection machine is arranged in the detection machine body, two first cavities are symmetrically formed in the opposite side walls of the detection machine body, and a first screw is arranged in each first cavity; a first motor is arranged in each of the two first cavities, a calibration assembly is arranged in the detection machine main body, two calibration clamping blocks are symmetrically arranged on the surface of the calibration assembly, a second motor is arranged on one side wall of the calibration assembly, and an electric telescopic rod is arranged in the second cavity. And a sealing baffle is arranged in the second cavity. According to the embodiment, the position of the detected keyboard can be calibrated, and the detection accuracy is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of keyboard detection, and particularly relates to a keyboard defect detection device based on machine vision. Background Art

[0002] Keyboard defect detection mainly includes: detecting keyboard character misprinting, overprinting, and missing printing; detecting the overall offset of the keyboard; and detecting the angle offset of the circular keys on the upper part of the keyboard.

[0003] After searching, in the prior art, Chinese patent application number: CN202121391899.6, application date: 2021-06-20, discloses a keyboard automatic detection device, including a shell, a feeding belt and a sorting belt, a PLC controller is installed at the middle position of the upper end of the front side of the shell, and a feeding belt extending to the outside of the shell is provided at the lower end of one end inside the shell, a detection box is provided inside the shell above the feeding belt, and CCD cameras are installed at equal intervals at the bottom of the detection box, a support frame is installed at one end of the lower end of one side of the shell, and a sorting frame is installed at the top of one side of the support frame, a sorting belt is provided inside the sorting frame, and a pneumatic telescopic rod is installed at one end of the top of one side of the support frame, and a push plate is installed at the output end of the pneumatic telescopic rod.

[0004] However, the device still has the following defects: Although the above embodiment avoids the partial unclear shooting caused by the whole shooting, which makes it difficult to find small defects and make them flow into the market, the device has limitations in the calibration of the machine perspective, which easily leads to deviation in the detection data. Utility Model Content

[0005] In view of the above problems, the utility model provides a keyboard defect detection device based on machine vision, comprising a device base, a detection machine body is arranged on the top of the device base, a detection entrance is opened on one side wall of the detection machine body, a detection machine is arranged inside the detection machine body, two groups of first cavities are symmetrically arranged on opposite side walls of the detection machine body, a group of first screws are arranged inside the two groups of first cavities, and a group of first motors are arranged inside the two groups of first cavities;

[0006] A calibration component is provided inside the detection machine body, a limiting slide groove is provided on the surface of the calibration component, two groups of second screws are symmetrically provided inside the calibration component, two groups of second sliding blocks are provided inside the calibration component, two groups of calibration clamps are symmetrically provided on the surface of the calibration component, a second motor is provided on one side wall of the calibration component, a second cavity is provided on one side wall of the detection machine body, an electric telescopic rod is provided inside the second cavity, and a sealing baffle is provided inside the second cavity.

[0007] Furthermore, a plurality of groups of fixed support legs are provided at the bottom of the device base, the plurality of groups of fixed support legs are all located at the bottom corners of the device base, and a group of counterweight blocks are provided at the bottom ends of the plurality of groups of fixed support legs.

[0008] Furthermore, two groups of movable door panels are symmetrically arranged on one side wall of the device base, the two groups of movable door panels are movably connected to the side wall of the device base, and a group of door panel handles are arranged on the surface of the two groups of movable door panels.

[0009] Furthermore, the detection entrance is located at the bottom end of the side wall of the device base, a connecting component is provided at the inner top of the detection machine body, the top of the detection machine is connected to one end of the connecting component, and the central axis of the detection machine and the central axis of the detection machine body are located on the same straight line.

[0010] Furthermore, two groups of first sliders are provided inside the two groups of the first cavities, and each two groups of the first sliders are respectively threadedly connected to the surface of a group of first screws, and the output ends of the two groups of the first motors are respectively transmission-connected to one end of the two groups of first screws.

[0011] Furthermore, two groups of first connecting rods are slidably fitted on the surfaces of the two groups of the first cavities, one end of the two groups of the first connecting rods are respectively connected to the surfaces of the two groups of first sliders, and the other ends of several groups of first connecting rods are fixedly connected to the side walls of the calibration component.

[0012] Furthermore, the two groups of second sliding blocks are respectively threadedly connected to the surfaces of the two groups of second screws, and two groups of second connecting rods are provided inside the calibration assembly. One ends of the two groups of second connecting rods are respectively connected to the surfaces of the two groups of second sliding blocks, and the other ends of the two groups of second connecting rods are respectively connected to the two groups of calibration clamps, and the relative surfaces of the two groups of calibration clamps are provided with a group of protective pads.

[0013] Furthermore, the second cavity is connected with the detection entrance through-connection, one end of the sealing baffle is connected with the output of the electric telescopic rod, and the sealing baffle is movably connected with the detection entrance.

[0014] The beneficial effects of the utility model are:

[0015] 1. Place the keyboard to be tested on the surface of the calibration component. The first motor drives the calibration component to enter the interior of the detection machine body. Then, the detection accuracy is improved by moving the position of the calibration component. The two sets of calibration clamps move toward each other to clamp the keyboard and perform position calibration at the same time to prevent deviations in the detection results and further improve the detection accuracy. The two sets of protective cushions can reduce the wear of the two sets of calibration clamps on the keyboard while achieving the effect of improving the detection accuracy.

[0016] 2. By connecting one end of the sealing baffle with the output of the electric telescopic rod, the sealing baffle is driven up and down by the electric telescopic rod, which can improve the sealing inside the main body of the detection machine and reduce the influence of external light and temperature on the detection result. The two groups of first motors drive the two groups of first screws to move, so that the two groups of first slides drive the calibration component to move horizontally, and the calibration component is moved into or out of the main body of the detection machine through the detection entrance, which improves the convenience of workers in placing and taking the keyboard during detection while achieving the effect of improving the practicality of the equipment.

[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure according to an embodiment of the utility model is shown;

[0020] Figure 2 A schematic diagram of the structure of a calibration component according to an embodiment of the utility model is shown;

[0021] Figure 3 A schematic cross-sectional view of a detection machine body according to an embodiment of the utility model is shown;

[0022] Figure 4 A front view of a second cavity structure according to an embodiment of the utility model is shown.

[0023] In the figure: 1. device base; 2. fixed support leg; 3. counterweight; 4. movable door panel; 5. door panel handle; 6. detection machine body; 7. detection entrance; 8. connection assembly; 9. detection machine; 10. first cavity; 11. first screw; 12. first slider; 13. first motor; 14. first connecting rod; 15. calibration assembly; 16. limiting slide; 17. second screw; 18. second slider; 19. second connecting rod; 20. calibration clamp; 21. protective cushion; 22. second cavity; 23. electric telescopic rod; 24. sealing baffle; 25. second motor. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The present utility model embodiment provides a keyboard defect detection device based on machine vision, including a device base 1; illustratively, as Figure 1-4 shown.

[0026] A plurality of groups of fixed support legs 2 are provided at the bottom of the device base 1, and the plurality of groups of fixed support legs 2 are all located at the bottom corners of the device base 1, and a group of counterweights 3 are provided at the bottom ends of the plurality of groups of fixed support legs 2. Two groups of movable door panels 4 are symmetrically provided on one side wall of the device base 1, and the two groups of movable door panels 4 are movably connected to the side walls of the device base 1, and a group of door panel handles 5 are provided on the surfaces of the two groups of movable door panels 4;

[0027] A detection machine body 6 is provided on the top of the device base 1, and a detection entrance 7 is provided on one side wall of the detection machine body 6. The detection entrance 7 is located at the bottom end of the side wall of the device base 1. A connecting component 8 is provided at the top of the inner part of the detection machine body 6. A detection machine 9 is provided inside the detection machine body 6. The top of the detection machine 9 is connected to one end of the connecting component 8. The central axis of the detection machine 9 is located on the same straight line as the central axis of the detection machine body 6.

[0028] Two groups of first cavities 10 are symmetrically arranged on opposite side walls of the detection machine body 6, and a group of first screws 11 are arranged inside the two groups of first cavities 10, and two groups of first sliders 12 are arranged inside the two groups of first cavities 10, and every two groups of first sliders 12 are respectively threadedly connected to the surface of a group of first screws 11, and a group of first motors 13 are arranged inside the two groups of first cavities 10, and the output ends of the two groups of first motors 13 are respectively transmission-connected to one end of the two groups of first screws 11;

[0029] Two groups of first connecting rods 14 are slidably fitted on the surfaces of the two groups of the first cavities 10, one end of the two groups of the first connecting rods 14 are respectively connected to the surfaces of the two groups of the first sliders 12, a calibration component 15 is provided inside the detection machine body 6, the other ends of several groups of the first connecting rods 14 are fixedly connected to the side walls of the calibration component 15, a limited sliding groove 16 is provided on the surface of the calibration component 15, and two groups of second screws 17 are symmetrically provided inside the calibration component 15;

[0030] Two groups of second sliders 18 are provided inside the calibration component 15, and the two groups of second sliders 18 are respectively threadedly connected to the surfaces of the two groups of second screws 17. Two groups of second connecting rods 19 are provided inside the calibration component 15, and the two groups of second connecting rods 19 are both slidably fitted inside the limiting slide groove 16. Two groups of calibration clamps 20 are symmetrically provided on the surface of the calibration component 15, and one end of the two groups of second connecting rods 19 is respectively connected to the surfaces of the two groups of second sliders 18.

[0031] The other ends of the two groups of second connecting rods 19 are respectively connected to the two groups of calibration clamps 20, and the opposite surfaces of the two groups of calibration clamps 20 are provided with a group of protective cushions 21. A second motor 25 is provided on one side wall of the calibration component 15, and the output of the second motor 25 is transmission-connected to one end of the two groups of second screws 17. A second cavity 22 is opened on one side wall of the detection machine body 6, and the second cavity 22 is connected to the detection entrance 7.

[0032] An electric telescopic rod 23 is provided inside the second cavity 22 , and a sealing baffle 24 is provided inside the second cavity 22 . One end of the sealing baffle 24 is transmission-connected to the output of the electric telescopic rod 23 , and the sealing baffle 24 is movably connected to the detection entrance 7 .

[0033] Specifically, by connecting one end of the sealing baffle 24 to the output of the electric telescopic rod 23, the electric telescopic rod 23 drives the sealing baffle 24 to move up and down, thereby improving the sealing performance inside the detection machine body 6 and reducing the influence of external light and temperature on the detection results.

[0034] The two sets of the first motors 13 drive the two sets of the first screws 11 to move, so that the two sets of the first slide blocks 12 drive the calibration assembly 15 to move horizontally, and the calibration assembly 15 is moved into or out of the detection machine body 6 through the detection entrance 7, thereby improving the convenience of workers placing and taking the keyboard during detection;

[0035] The keyboard to be inspected is placed on the surface of the calibration component 15. The first motor 13 drives the calibration component 15 to enter the interior of the detection machine body 6. The detection accuracy is improved by moving the position of the calibration component 15. The two sets of calibration clamps 20 move towards each other to clamp the keyboard and perform position calibration at the same time to prevent deviations in the detection results and further improve the detection accuracy. The two sets of protective pads 21 can reduce the wear of the keyboard by the two sets of calibration clamps 20.

[0036] The keyboard defect detection device based on machine vision proposed in the embodiment of the utility model has the following working principle:

[0037] One end of the sealing baffle 24 is connected to the output of the electric telescopic rod 23 by transmission, and the electric telescopic rod 23 drives the sealing baffle 24 to move up and down, so as to improve the sealing inside the detection machine body 6 and reduce the influence of external light and temperature on the detection result;

[0038] The two sets of the first motors 13 drive the two sets of the first screws 11 to move, so that the two sets of the first slide blocks 12 drive the calibration assembly 15 to move horizontally, and the calibration assembly 15 is moved into or out of the detection machine body 6 through the detection entrance 7, thereby improving the convenience of workers placing and taking the keyboard during detection;

[0039] The keyboard to be inspected is placed on the surface of the calibration component 15. The first motor 13 drives the calibration component 15 to enter the interior of the detection machine body 6. The detection accuracy is improved by moving the position of the calibration component 15. The two sets of calibration clamps 20 move towards each other to clamp the keyboard and perform position calibration at the same time to prevent deviations in the detection results and further improve the detection accuracy. The two sets of protective pads 21 can reduce the wear of the keyboard by the two sets of calibration clamps 20.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A keyboard defect detection device based on machine vision, comprising a device base (1), characterized in that: A detection machine body (6) is provided on the top of the device base (1), a detection entrance (7) is provided on one side wall of the detection machine body (6), a detection machine (9) is provided inside the detection machine body (6), two groups of first cavities (10) are symmetrically provided on opposite side walls of the detection machine body (6), a group of first screws (11) are provided inside the two groups of first cavities (10), and a group of first motors (13) are provided inside the two groups of first cavities (10); A calibration component (15) is provided inside the detection machine body (6), a limit slide groove (16) is provided on the surface of the calibration component (15), two groups of second screw rods (17) are symmetrically provided inside the calibration component (15), two groups of second sliding blocks (18) are provided inside the calibration component (15), two groups of calibration clamping blocks (20) are symmetrically provided on the surface of the calibration component (15), a second motor (25) is provided on one side wall of the calibration component (15), a second cavity (22) is provided on one side wall of the detection machine body (6), an electric telescopic rod (23) is provided inside the second cavity (22), and a sealing baffle (24) is provided inside the second cavity (22).

2. The keyboard defect detection device based on machine vision according to claim 1, characterized in that: A plurality of groups of fixed support legs (2) are provided at the bottom of the device base (1); the plurality of groups of fixed support legs (2) are all located at the bottom corners of the device base (1); and a group of counterweights (3) are provided at the bottom ends of the plurality of groups of fixed support legs (2).

3. The keyboard defect detection device based on machine vision according to claim 2, characterized in that: Two groups of movable door panels (4) are symmetrically arranged on one side wall of the device base (1); the two groups of movable door panels (4) are movably engaged with the side wall of the device base (1), and a group of door panel handles (5) are arranged on the surface of the two groups of movable door panels (4).

4. The keyboard defect detection device based on machine vision according to claim 3, characterized in that: The detection entrance (7) is located at the bottom end of the side wall of the device base (1); a connecting component (8) is provided at the top end of the inner part of the detection machine body (6); the top of the detection machine (9) is connected to one end of the connecting component (8); and the central axis of the detection machine (9) and the central axis of the detection machine body (6) are located on the same straight line.

5. The keyboard defect detection device based on machine vision according to claim 2, characterized in that: Two groups of first sliding blocks (12) are provided inside the two groups of the first cavities (10), and each two groups of the first sliding blocks (12) are respectively threadedly connected to the surface of a group of first screw rods (11), and the output ends of the two groups of the first motors (13) are respectively transmission-connected to one end of the two groups of first screw rods (11).

6. The keyboard defect detection device based on machine vision according to claim 5, characterized in that: Two groups of first connecting rods (14) are slidably fitted on the surfaces of the two groups of the first cavities (10), one end of the two groups of the first connecting rods (14) are respectively connected to the surfaces of the two groups of first sliding blocks (12), and the other ends of the several groups of the first connecting rods (14) are fixedly connected to the side walls of the calibration component (15).

7. The keyboard defect detection device based on machine vision according to claim 6, characterized in that: The two groups of the second sliding blocks (18) are respectively threadedly connected to the surfaces of the two groups of second screw rods (17); two groups of second connecting rods (19) are provided inside the calibration component (15); one end of the two groups of the second connecting rods (19) are respectively connected to the surfaces of the two groups of second sliding blocks (18); the other ends of the two groups of the second connecting rods (19) are respectively connected to the two groups of calibration clamps (20); and a group of protective cushions (21) are provided on the opposite surfaces of the two groups of calibration clamps (20).

8. The keyboard defect detection device based on machine vision according to claim 3, characterized in that: The second cavity (22) is in continuous connection with the detection entrance (7), one end of the sealing baffle (24) is in transmission connection with the output of the electric telescopic rod (23), and the sealing baffle (24) is movably engaged with the detection entrance (7).

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