Keyboard light transmission detection tool and detection equipment

Abstract

The utility model discloses a keyboard light transmission detection tool and detection equipment. The device comprises a detection tool, a first horizontal transfer module for driving the detection tool to horizontally move among a feeding station, a detection station and a discharging station, a visual detection unit arranged at the detection station, and a discharging carrying unit located at the discharging station; the detection tool comprises a first supporting plate, a second supporting plate which is rotatably arranged on the first supporting plate, and a motor which is fixed on the first supporting plate and drives the second supporting plate to rotate around a horizontal shaft. The keyboard positioning jig is arranged on the second supporting plate; and the backlight source is arranged on the second supporting plate and is positioned below the keyboard positioning jig. According to the utility model, the automatic detection requirements of various defect items can be met, and the diversity of detection functions is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of keyboard detection equipment, and particularly relates to a keyboard light transmission detection tooling and a detection device.

Background Art

[0002] A keyboard is a commonly used computer input device. People not only pay attention to its performance during daily use but also have certain requirements for the appearance of the product. In terms of the keyboard appearance, after the keyboard is manufactured, it is required that there are no cracks, fissures, defects, pinholes, paint peeling, etc. on the keycap surface, and the character information on the keycap is required to be in the correct position and without errors, and there should be no silk printing errors, silk printing defects, overprinting, underprinting, missing printing, wrong key, etc. It is also required that the size of the keycap is correct. Some keyboards are provided with blind lines on the surface, and it is also necessary to detect whether there are such blind lines. Therefore, it is necessary to set up an automatic detection device to perform light transmission detection on the keyboard.

[0003] In the prior art, the patent CN205607879U discloses a light leakage detection mechanism for backlit keyboard keycaps. Although this detection mechanism can realize the automatic detection of some defect items of the keyboard keycaps, for some defects such as hidden cracks on the keycap surface, due to the characteristics of this defect, the detection effect of this mechanism is not good, and it is easy to have problems where defects cannot be recognized.

[0004] Therefore, it is necessary to provide a new keyboard light transmission detection tooling and a detection device to solve the above technical problems.

Content of the Utility Model

[0005] One of the main purposes of the utility model is to provide a keyboard light transmission detection tooling, which can meet the automatic detection requirements of various defect items and greatly improve the diversity of detection functions.

[0006] The utility model realizes the above purpose through the following technical scheme: A keyboard light transmission detection tooling includes a first support plate, a second support plate rotatably arranged on the first support plate, a motor fixed on the first support plate and driving the second support plate to rotate around a horizontal axis, a keyboard positioning fixture arranged on the second support plate, and a backlight source arranged on the second support plate and located below the keyboard positioning fixture.

[0007] Furthermore, a support and positioning structure is arranged on the second support plate to facilitate the quick replacement of the keyboard positioning fixture.

[0008] Further, the support and positioning structure jointly forms a support platform for supporting the keyboard positioning fixture, and includes a first support block for supporting the front side edge of the keyboard positioning fixture, second support blocks for supporting the left and right side edges of the keyboard positioning fixture, and a third support block for supporting the rear side edge of the keyboard positioning fixture; a limit baffle for defining the contour position of the rear side edge of the keyboard positioning fixture is arranged on the third support block; guiding chutes for the keyboard positioning fixture to slide into the support platform are arranged on the opposite side surfaces of the two second support blocks on the left and right.

[0009] Further, magnetic absorption blocks for adsorbing and fixing the keyboard positioning fixture are arranged on the vertical surface of the limit baffle.

[0010] Further, the support and positioning structure includes a plurality of positioning pins fixed on the second support plate and a pressing member for pressing the keyboard positioning fixture onto the second support plate, and a plurality of positioning holes for cooperating with the positioning pins for positioning are arranged on the keyboard positioning fixture.

[0011] Further, the keyboard positioning fixture includes a fixture plate, a keyboard bearing area arranged on the fixture plate, a plurality of positioning posts arranged around the keyboard bearing area and used for positioning the peripheral contour of the keyboard, and a lamp key connector module arranged on the fixture plate and used for lighting the lamp keys, and a plurality of hollow slots corresponding to the positions of the key caps on the keyboard are arranged on the keyboard bearing area.

[0012] Further, the lamp key connector module includes a lighting main board arranged on the fixture plate, a pressing plate movably arranged up and down on the fixture plate and located above the lighting main board, and a first air cylinder for driving the pressing plate to move up and down.

[0013] Further, it further includes a cover plate module; the cover plate module includes a second air cylinder and a cover plate driven by the second air cylinder to move up and down; an avoidance slot for exposing the keyboard area is arranged on the cover plate; during detection, the cover plate covers the keyboard positioning fixture.

[0014] Further, a support seat is arranged at the movable end of the second air cylinder, and a support positioning groove for supporting the end of the cover plate is arranged on the support seat; a positioning structure for maintaining the closed state is arranged on the opposite surfaces of the fixture plate and the cover plate;

[0015] When the second air cylinder drives the support seat to be at a high position, both ends of the cover plate are seated in the support positioning groove, and the cover plate is lifted upward by the support seat; when the detection tooling moves to the detection station, the second air cylinder drives the support seat to move to a low position, and the cover plate maintains the closed state with the keyboard positioning fixture through the positioning structure.

[0016] Another object of the present utility model is to provide a keyboard light transmission detection device, which includes the detection tooling described above, a first horizontal transfer module for driving the detection tooling to perform horizontal movement between the loading station, the detection station and the unloading station, a vision detection unit arranged at the detection station, and an unloading handling unit located at the unloading station.

[0017] Compared with the prior art, the beneficial effects of a keyboard light transmission detection tooling and a detection device of the present utility model are as follows: A second support plate capable of performing rotational movement is configured in the detection tooling to drive the keyboard positioning fixture to drive the keyboard to achieve angle adjustment, so that the upper light source can irradiate the keyboard surface at a certain angle, thereby improving the accuracy and comprehensive coverage of the upper vision camera for capturing crack defects, and improving the reliability of the detection result; By designing a quick-change structure, the quick replacement of the keyboard positioning fixture can be realized, and the versatility and flexibility of the detection device are improved.

Description of the Drawings

[0018] Figure 1 is a three-dimensional structure schematic diagram of an embodiment of the present utility model;

[0019] Figure 2 is a structure schematic diagram of the embodiment of the present utility model after removing the frame;

[0020] Figure 3 is a structure schematic diagram of the detection tooling and the first horizontal transfer module in the embodiment of the present utility model;

[0021] Figure 4 is a partial structure schematic diagram of the detection tooling in the embodiment of the present utility model;

[0022] Figure 5 is a structure schematic diagram of the keyboard positioning fixture in the embodiment of the present utility model;

[0023] The numbers in the figure represent:

[0024] 100 - keyboard light transmission detection device; 200 - keyboard;

[0025] 1 - Detection tooling, 11 - First support plate, 12 - Second support plate, 13 - Motor, 14 - Keyboard positioning fixture, 141 - Fixture plate, 1411 - Guide step structure, 1412 - First positioning part, 142 - Keyboard bearing area, 143 - Positioning column, 144 - Light key connector module, 1441 - Pressure plate, 1442 - First cylinder, 145 - Hollow groove, 15 - Backlight source, 16 - Support limiting plate, 17 - Support positioning structure, 171 - First support block, 172 - Second support block, 1721 - Guide chute, 173 - Third support block, 1731 - Limit baffle, 1732 - Magnetic block, 18 - Cover module, 181 - Cover, 182 - Second cylinder, 183 - Avoidance slot, 184 - Support seat, 1841 - Support positioning groove;

[0026] 2 - First horizontal transfer module;

[0027] 3 - Vision inspection unit, 31 - Vision camera, 32 - Protective cover;

[0028] 4 - Unloading handling unit, 41 - Second horizontal transfer module, 42 - Third support plate, 43 - Third cylinder, 44 - Adsorption module;

[0029] 5 - Frame, 51 - Safety light curtain, 52 - Barcode scanner, 53 - Start / stop switch button, 54 - Display.

Specific implementation manner

[0030] Example 1:

[0031] Please refer to Figures 1 - 5 , this embodiment is a keyboard light transmission detection device 100, which includes a detection tooling 1, a first horizontal transfer module 2 that drives the detection tooling 1 to move horizontally between the loading station, the detection station, and the unloading station, a vision inspection unit 3 provided at the detection station, and an unloading handling unit 4 located at the unloading station.

[0032] This embodiment further includes a frame 5. At the loading station, there are a safety light curtain 51, a barcode scanner 52, and a start / stop switch button 53 installed on the frame 5. There is also a display 54 installed on the frame 5.

[0033] The detection tooling 1 includes a first support plate 11 driven by the first horizontal transfer module 2 to move horizontally, a second support plate 12 rotatably arranged on the first support plate 11, a motor 13 fixed on the first support plate 11 and driving the second support plate 12 to rotate around a horizontal axis, a keyboard positioning fixture 14 arranged on the second support plate 12, and a backlight source 15 arranged on the second support plate 12 and located below the keyboard positioning fixture 14.

[0034] For defects such as surface cracks, or for more precise identification of the side profile of the keycap, sometimes the upper vision camera alone cannot clearly identify them, and there is a risk of defective products flowing out due to defect or contour recognition failure. In this embodiment, a second support plate 12 capable of rotational movement is configured in the detection tooling 1, which can drive the keyboard positioning jig 14 to adjust the angle of the keyboard, so that the upper light source can irradiate the keyboard surface at a certain angle, thereby improving the accuracy and comprehensive coverage of the upper vision camera to capture crack defects or identify the contour, and improving the reliability of the detection result.

[0035] A support and limit plate 16 for supporting one side of the second support plate 12 to keep it horizontal is provided on the first support plate 11.

[0036] In order to achieve quick replacement of the keyboard positioning jig 14 and improve the versatility of the detection device, the structure of the detection tooling 1 is optimized in this embodiment. Specifically, a support and positioning structure 17 for facilitating quick replacement of the keyboard positioning jig 14 is provided on the second support plate 12. The support and positioning structure 17 together forms a support platform for supporting the keyboard positioning jig 14. The support and positioning structure 17 includes a first support block 171 for supporting the front side edge of the keyboard positioning jig 14, second support blocks 172 for supporting the left and right side edges of the keyboard positioning jig 14, and a third support block 173 for supporting the rear side edge of the keyboard positioning jig 14. A limit baffle 1731 for limiting the contour position of the rear side edge of the keyboard positioning jig 14 is provided on the third support block 173. Guide chutes 1721 for the keyboard positioning jig 14 to slide into the support platform are provided on the opposite side surfaces of the two second support blocks 172 on the left and right. The keyboard positioning jig 14 slides into the support platform from the front side along the guide chutes 1721, and is positioned by limiting the sliding depth through the limit baffle 1731. At the same time, the guide chutes 1721 can also limit the up and down freedom of the keyboard positioning jig 14 to realize the position limitation of the keyboard positioning jig 14, and can also lift the keyboard positioning jig 14 up by a certain height, so that there is enough height space below to set the backlight source 15.

[0037] In order to further improve the position stability of the keyboard positioning jig 14 on the support platform, a magnetic block 1732 can be provided on the vertical surface of the limit baffle 1731 according to requirements, and a magnetic block or a magnetic conductive block is provided at the corresponding position on the keyboard positioning jig 14, and the magnetic block 1732 is used to fix the position of the keyboard positioning jig 14.

[0038] In addition to the above structure, the support and positioning structure 17 can also adopt other mechanisms that can achieve quick change. For example, the support and positioning structure 17 includes several positioning pins (not marked in the figure) fixed on the second support plate 12 and a pressing member (not marked in the figure) that presses the keyboard positioning jig 14 onto the second support plate 12. The keyboard positioning jig 14 is provided with several positioning holes that cooperate with the positioning pins for positioning.

[0039] The keyboard positioning jig 14 includes a jig plate 141, a keyboard bearing area 142 provided on the jig plate 141, several positioning posts 143 arranged around the keyboard bearing area 142 and used for positioning the peripheral contour of the keyboard 200, and a key light connector module 144 provided on the jig plate 141 and used for lighting the key lights. The keyboard bearing area 142 is provided with several hollow slots 145 corresponding to the positions of the keycaps on the keyboard. The hollow slots 145 are used to allow the light of the backlight source 15 below to pass through and irradiate the lower surface of the keycaps, so as to detect items such as cracks and fissures.

[0040] The left and right sides of the jig plate 141 are provided with guiding step structures 1411 that cooperate with the guiding chute 1721.

[0041] The key light connector module 144 includes a lighting main board (not marked in the figure) provided on the jig plate 141, a pressing plate 1441 that is movably arranged up and down on the jig plate 141 and is located above the lighting main board, and a first air cylinder 1442 that drives the pressing plate 1441 to move up and down. During the test, the first air cylinder 1442 drives the pressing plate 1441 to move up and down according to the requirements of the test time nodes, so as to realize the conduction or disconnection of the circuit between the lighting main board and the keyboard.

[0042] The backlight source 15 completely covers the keyboard bearing area 142.

[0043] In order to ensure the stable position of the keyboard at the detection station and avoid the influence of areas outside the keyboard on the detection results, a cover plate module 18 is also provided at the detection station. The cover plate module 18 includes a cover plate 181 and a second air cylinder 182 fixed on the frame 5 and driving the cover plate 181 to move up and down. In the initial state, the cover plate 181 is in the high position. After the detection tooling 1 reaches the detection station, the cover plate 181 switches to the low position and covers the keyboard positioning jig 14. The cover plate 181 is provided with an avoidance slot 183 that exposes the keyboard area.

[0044] Since the keyboard positioning fixture 14 needs to tilt at a certain angle with the keyboard during the detection process, in order to prevent the positional stability of the keyboard in the tilted state, the cover plate 181 needs to tilt together with the keyboard positioning fixture 14. To achieve this function, a positioning structure for maintaining the closed state is provided on the relative surfaces of the fixture plate 141 and the cover plate 181. The positioning structure includes a first positioning member 1412 provided on the fixture plate 141 and a second positioning member (not marked in the figure) provided on the cover plate 181 and cooperating with the first positioning member 1412. In one embodiment, the first positioning member 1412 is a magnetic attraction block, and the second positioning member is a magnetic conductive block. In another embodiment, the first positioning member 1412 is a positioning hole, and the second positioning member is a positioning pin. A support seat 184 is provided at the movable end of the second cylinder 182, and a support positioning groove 1841 for supporting the end of the cover plate 181 is provided on the support seat 184. When the second cylinder 182 drives the support seat 184 to the high position, both ends of the cover plate 181 are seated in the support positioning groove 1841, and the cover plate 181 is lifted upward by the support seat 184; when the detection tooling 1 moves to the detection station, the second cylinder 182 drives the support seat 184 to move to the low position. At this time, the cover plate 181 is seated on the keyboard positioning fixture 14, and the relative positions of the two are stably closed through the positioning structure. When the keyboard positioning fixture 14 tilts at a certain angle, the cover plate 181 also tilts accordingly to meet the detection requirements.

[0045] The vision detection unit 3 includes a vision camera 31, an upper light source module (not marked in the figure), and a protective cover 32 that encloses the detection station to form a vision detection space.

[0046] The blanking handling unit 4 includes a second horizontal transfer module 41, a third support plate 42 driven by the second horizontal transfer module 41 to move horizontally, a third cylinder 43 fixed on the third support plate 42, and an adsorption module 44 driven by the third cylinder 43 to move up and down.

[0047] The working process of a keyboard light transmission detection device 100 in this embodiment is as follows: At the loading station, the keyboard 200 to be detected is placed on the detection tooling 1, and the barcode scanner 52 scans the code; the first horizontal transfer module 2 drives the detection tooling 1 to move to the detection station, and the cover plate 181 descends and closes on the detection tooling 1; according to the detection sequence, the backlight source 15 and the upper light source module are respectively lit, and the motor 13 drives the keyboard 200 to tilt at a certain angle, and each detection item is completed by using the vision camera 31; after the detection is completed, the cover plate 181 rises; the first horizontal transfer module 2 drives the detection tooling 1 to move to the blanking station, and the keyboard 200 is taken away through the blanking handling unit 4 to achieve automatic blanking.

[0048] The above are only some embodiments of the present utility model. For those of ordinary skill in the art, without departing from the creative concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model.

Claims

1. A keyboard light transmission detection tooling, characterized in that: It includes a first support plate, a second support plate rotatably arranged on the first support plate, a motor fixed on the first support plate and driving the second support plate to rotate around a horizontal axis, a keyboard positioning fixture arranged on the second support plate, and a backlight source arranged on the second support plate and located below the keyboard positioning fixture.

2. The keyboard light transmission detection tooling according to claim 1, characterized in that: A support and positioning structure for facilitating quick replacement of the keyboard positioning fixture is arranged on the second support plate.

3. The keyboard light transmission detection tooling according to claim 2, characterized in that: The support and positioning structure jointly forms a support platform for supporting the keyboard positioning fixture, and includes a first support block for supporting the front side edge of the keyboard positioning fixture, second support blocks for supporting the left and right side edges of the keyboard positioning fixture, and a third support block for supporting the rear side edge of the keyboard positioning fixture; a limit baffle for defining the contour position of the rear side edge of the keyboard positioning fixture is arranged on the third support block; guiding chutes for the keyboard positioning fixture to slide into the support platform are arranged on the opposite side surfaces of the two second support blocks on the left and right.

4. The keyboard light transmission detection tooling according to claim 3, characterized in that: Magnetic attraction blocks for adsorbing and fixing the keyboard positioning fixture are arranged on the vertical surface of the limit baffle.

5. The keyboard light transmission detection tooling according to claim 2, characterized in that: The support and positioning structure includes a plurality of positioning pins fixed on the second support plate and a pressing member for pressing the keyboard positioning fixture onto the second support plate, and a plurality of positioning holes for cooperating with the positioning pins are arranged on the keyboard positioning fixture.

6. The keyboard light transmission detection tooling according to claim 1, characterized in that: The keyboard positioning fixture includes a fixture plate, a keyboard bearing area arranged on the fixture plate, a plurality of positioning columns arranged around the keyboard bearing area and used for positioning the peripheral contour of the keyboard, and a lamp key connector module arranged on the fixture plate and used for lighting the lamp keys. A plurality of hollow slots corresponding to the positions of the keycaps on the keyboard are arranged on the keyboard bearing area.

7. The keyboard light transmission detection tooling according to claim 6, characterized in that: The lamp key connector module includes a lighting main board arranged on the fixture plate, a pressing plate arranged on the fixture plate and movable up and down and located above the lighting main board, and a first air cylinder for driving the pressing plate to move up and down.

8. The keyboard light transmission detection tooling according to claim 6, characterized in that: It further includes a cover plate module; the cover plate module includes a second air cylinder and a cover plate driven by the second air cylinder to move up and down; an avoidance slot for exposing the keyboard area is arranged on the cover plate; during detection, the cover plate covers the keyboard positioning fixture.

9. The keyboard light transmission detection tooling according to claim 8, wherein: A support seat is arranged at the movable end of the second air cylinder, and a support and positioning slot for supporting the end of the cover plate is arranged on the support seat; positioning structures for maintaining the closed state are arranged on the opposite surfaces of the fixture plate and the cover plate. When the second air cylinder drives the support seat to be at a high position, both ends of the cover plate are seated in the support and positioning slot, and the cover plate is lifted upward by the support seat. When the detection tooling moves to the detection station, the second air cylinder drives the support seat to move to a low position, and the cover plate maintains the closed state with the keyboard positioning fixture through the positioning structure.

10. A keyboard light transmission detection device, characterized in that: It includes the detection tooling as described in claim 1, a first horizontal transfer module for driving the detection tooling to perform horizontal movement between the loading station, the detection station, and the unloading station, a visual detection unit arranged at the detection station, and an unloading handling unit located at the unloading station.

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