Keyboard brightness detection device

Abstract

The utility model discloses a keyboard brightness detection equipment relates to detection equipment technical field, including turnover mechanism and the feeding assembly line of setting at its one end, the turnover mechanism is used for turning over the incoming material keyboard product to the feeding assembly line and makes keyboard front face upward, fine positioning camera mechanism, is located between the feeding assembly line and mechanical hand mechanism, the utility model discloses a vacuum chuck and turnover motor module with the help of turnover mechanism, accurately turns keyboard from the reverse side upward to the front side upward, and the guide baffle of feeding assembly line is matched, ensures the position stability in the conveying process, and the fine positioning camera mechanism is combined with the coarse positioning, and the approximate position of keyboard is obtained through coarse positioning, and then high-precision positioning is realized through fine positioning camera, solve the problem that the traditional equipment positioning deviation influences detection accuracy, and the high-precision brightness acquisition of energized keyboard is carried out with the cooperation of brightness detection camera mechanism, and the accuracy, efficiency and product quality stability of keyboard brightness detection are improved as a whole, and the demand of scale production is adapted.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically a keyboard brightness testing device. Background Technology

[0002] With the rapid development of intelligent and thin electronic devices, the keyboard, as a core component of human-computer interaction, directly affects user experience and product market competitiveness in terms of its appearance quality and functional stability. Among them, the uniformity and consistency of keyboard brightness are key indicators for measuring its display performance. Especially in precision devices such as laptops and smart terminals, brightness defects (such as local overbrightness, dark areas, flickering, etc.) will seriously reduce product quality.

[0003] Currently, keyboard brightness detection relies heavily on manual visual inspection or semi-automated equipment. Manual inspection methods suffer from low efficiency, high subjectivity, and susceptibility to fatigue leading to high error rates, making them unsuitable for large-scale production.

[0004] Existing semi-automated testing equipment generally suffers from the following shortcomings: First, insufficient positioning accuracy. Traditional testing equipment often uses a single camera or simple mechanical limiter to position keyboards, which is difficult to adapt to the differences in the shape of different keyboard models, resulting in product position deviation during testing and affecting the accuracy of brightness data. Second, poor process connection. The mechanical movements of product flipping, transfer, and testing are poorly coordinated, which can easily lead to problems such as jamming and collisions, causing production line shutdowns. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a keyboard brightness detection device to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a keyboard brightness detection device, comprising;

[0007] A flipping mechanism and a feeding line disposed at one end thereof, the flipping mechanism being used to flip the incoming keyboard products onto the feeding line and make the keyboard face up.

[0008] Specifically, the flipping mechanism is supported by a profile frame. The top of the profile frame is connected to a conveyor belt with a flipping angle via a flipping motor module. A vacuum suction cup is installed on the inside of the conveyor belt to adsorb the keyboard product.

[0009] Furthermore, the feeding assembly line is supported by a support frame, and the top of the support frame is connected to the assembly line belt, which is driven by the assembly line motor installed on the support frame.

[0010] The coarse positioning camera mechanism is located on one side of the feeding assembly line and is used to take pictures and position the keyboard products as they move along the feeding assembly line to the area below the coarse positioning camera mechanism.

[0011] The robotic arm mechanism is located on one side of the feeding assembly line and is used to transfer keyboard products between various workstations.

[0012] The robotic arm mechanism consists of a six-axis robotic arm mounted on a square tube bracket, and the execution end of the six-axis robotic arm is connected to a suction cup fixture, which is used to adsorb and transfer the keyboard product.

[0013] The precision positioning camera mechanism is located between the feeding assembly line and the robot arm mechanism. It uses the robot arm mechanism to transfer the keyboard products from the coarse positioning camera mechanism to the precision positioning camera mechanism to perform precision positioning operations on the keyboard products.

[0014] The precision positioning camera mechanism includes a servo motor module, a horizontal adjustment module, a positioning camera module, a light source module, and a glass stage;

[0015] The servo motor module is used to drive the horizontal movement of the horizontal adjustment module, and the positioning camera module is installed on the top of the horizontal adjustment module. The light source module is installed on the top of the positioning camera module, and the glass platform is fixed above the light source module for placing the keyboard product for precise positioning.

[0016] The turntable fixture mechanism is located on one side of the robotic arm mechanism. It can drive the keyboard product to rotate. The turntable fixture mechanism is equipped with a fixture pressure head mechanism, which plays the role of pressing and energizing the keyboard product.

[0017] The keyboard pressing mechanism is located on one side above the turntable fixture mechanism. The keyboard pressing mechanism plays a role in pressing down and fixing the keyboard product.

[0018] The keyboard pressing mechanism includes a fixed frame, a lifting cylinder, and a fixture cover plate;

[0019] The output end of the lifting cylinder is installed downwards at the middle position of the top of the fixed frame, and the fixture cover plate is fixed to the output end of the lifting cylinder.

[0020] The brightness detection camera mechanism is located on one side above the turntable fixture mechanism. It is used to perform brightness detection on the keyboard product after it is rotated by the turntable fixture mechanism and then fixed by the keyboard pressing mechanism.

[0021] One end of the robotic arm mechanism is equipped with an NG (Not Found) item placement mechanism, which includes an installation frame, a partition placement frame, and an NG item placement frame.

[0022] The partition placement frame and the NG product placement frame are respectively fixed on the top two sides of the mounting frame. The partition placement frame has multiple sets of partitions stacked inside, and the NG product placement frame holds keyboard products that fail the brightness test. After each set of keyboard products is placed, a partition is stacked on top of it to isolate the keyboard products.

[0023] The NG product placement mechanism also includes an X-axis moving slide and a suction cup module. The X-axis moving slide is installed on the top of the mounting frame, and its sliding end is connected to a suction cup module for adsorbing keyboard products.

[0024] By adopting the above technical solution, the keyboard is precisely rotated from face down to face up using a flipping mechanism with the help of a vacuum suction cup and a flipping motor module. Combined with the guide baffle of the feeding line, stable position is ensured during transport. The coarse and fine positioning camera mechanisms work together: first, coarse positioning obtains the approximate position of the keyboard, and then the fine positioning camera achieves high-precision positioning of ±0.1mm, solving the problem of positioning deviation affecting detection accuracy in traditional equipment. The six-axis robot arm and turntable fixture mechanism work together to achieve efficient transfer and stable fixation of the keyboard between various workstations. A brightness detection camera mechanism performs high-precision brightness acquisition of powered keyboards. The fully automated operation increases the detection efficiency to 300 units / hour, far exceeding the 50 units / hour of manual inspection. Meanwhile, the NG product placement mechanism, through partition isolation and lifting design, standardizes the management of non-conforming products and avoids key damage. Overall, the accuracy, efficiency, and product quality stability of keyboard brightness detection are improved, adapting to the needs of large-scale production.

[0025] Furthermore, the NG product placement mechanism also includes two sets of lifting cylinders, which respectively lift the products inside the partition placement frame and the NG product placement frame.

[0026] By adopting the above technical solution, the X-axis moving slide table drives the suction cup module to place it into the NG product placement frame, and takes a spacer from the spacer placement frame and places it on it to avoid button wear.

[0027] In summary, this utility model has the following beneficial effects: The flipping mechanism, with the help of a vacuum suction cup and a flipping motor module, precisely flips the keyboard from face down to face up. Combined with the guide baffle of the feeding line, it ensures stable positioning during transport. The coarse and fine positioning camera mechanisms work together, first obtaining the approximate position of the keyboard through coarse positioning, and then achieving high-precision positioning of ±0.1mm through the fine positioning camera. This solves the problem of positioning deviation affecting the accuracy of detection in traditional equipment. The six-axis robot arm and the turntable fixture mechanism work together to achieve efficient transfer and stable fixation of the keyboard between various workstations. Combined with a brightness detection camera mechanism, it performs high-precision brightness acquisition of powered keyboards. The fully automated operation increases the detection efficiency to 300 units / hour, far exceeding the 50 units / hour of manual detection. Meanwhile, the NG product placement mechanism, through partition isolation and lifting design, standardizes the management of non-conforming products and avoids key damage. Overall, it improves the accuracy, efficiency, and product quality stability of keyboard brightness detection, adapting to the needs of large-scale production. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention with part of the outer shell removed;

[0029] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0030] Figure 3 This is a top view of the entire utility model;

[0031] Figure 4 This is an enlarged view of the structure of the flipping mechanism of this utility model;

[0032] Figure 5 This is an enlarged view of the structure of the feeding production line of this utility model;

[0033] Figure 6 This is an enlarged view of the structure of the robotic arm mechanism of this utility model;

[0034] Figure 7 This is an enlarged view of the structure of the precision positioning camera mechanism of this utility model;

[0035] Figure 8 This is an enlarged view of the keyboard pressing mechanism of this utility model;

[0036] Figure 9 This is an enlarged view of the NG product placement mechanism of this utility model.

[0037] In the diagram: 1. Tilting mechanism; 101. Profile frame; 102. Tilting motor module; 103. Conveyor belt; 104. Vacuum suction cup; 2. Feeding assembly line; 201. Support frame; 202. Assembly line belt; 203. Assembly line motor; 3. Coarse positioning camera mechanism; 4. Robotic arm mechanism; 401. Six-axis robotic arm; 402. Suction cup fixture; 403. Square tube support; 5. Fine positioning camera mechanism; 501. Servo motor module; 502. Horizontal adjustment module; 503. 504. Positioning camera module; 505. Light source module; 506. Glass stage; 7. Turntable fixture mechanism; 8. Fixture pressing head mechanism; 9. Brightness detection camera mechanism; 10. Keyboard pressing mechanism; 11. Fixed frame; 12. Lifting cylinder; 13. Fixture cover plate; 14. NG product placement mechanism; 15. Mounting frame; 16. Spacer placement frame; 17. NG product placement frame; 18. X-axis moving slide; 19. Suction cup module; 10. Lifting cylinder. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0039] The embodiments of this utility model will be described below based on its overall structure.

[0040] Example 1

[0041] like Figure 1-9 As shown, the keyboard brightness detection device provided in this embodiment achieves a fully automated process from keyboard feeding to brightness detection through the coordinated operation of multiple mechanisms. The specific structure is as follows:

[0042] The main structure of the flipping mechanism 1 is supported by a profile frame 101, and a flipping motor module 102 is installed on the top. It adopts a servo motor, and the flipping angle is adjustable from 0 to 180°. The output end is connected to a conveyor belt 103.

[0043] Positioning component: Four sets of vacuum suction cups 104 are embedded inside the conveyor belt 103 to pick up the keyboard and flip it with the belt, ensuring that the keyboard turns from the back to the front.

[0044] Feeding line 2

[0045] Conveying structure: A conveyor belt 202 is installed on the top of the support frame 201 and driven by the conveyor motor 203 to convey the flipped keyboard to the inspection station;

[0046] Auxiliary positioning: Guide baffles are provided on both sides of the belt to limit the lateral offset of the keyboard, with a deviation of ≤2mm;

[0047] Coarse and fine positioning mechanisms

[0048] The coarse positioning camera mechanism 3 is installed on one side of the feed line 2. It includes an industrial camera and a strip light source to capture and position the moving keyboard, obtain the approximate position coordinates, and the positioning accuracy is ±0.5mm.

[0049] Precision positioning camera mechanism 5: Glass stage 505 is used to place the keyboard, and light source module 504 is set below it. It is a uniform surface light source with a brightness of 5000 lux.

[0050] The horizontal adjustment module 502 is driven by the servo motor module 501, which drives the top positioning camera module 503 to move horizontally, capture multi-dimensional images of the keyboard, and accurately locate the key coordinates with an accuracy of ±0.1mm.

[0051] robotic arm and turntable mechanism

[0052] Robotic arm mechanism 4: A six-axis robotic arm 401 is fixed on a square tube bracket 403, and a suction cup fixture 402 is installed at the execution end. It uses 6 sets of miniature suction cups to transfer keyboards between workstations at a transfer speed of 0.5m / s.

[0053] Turntable fixture mechanism 6: It is a rotating turntable driven by a divider, with a positioning accuracy of ±0.02mm. It has 4 sets of fixture positions on the edge, each set is equipped with a fixture pressure head mechanism 7, which is a pneumatic pressure head with adjustable pressure, used for keyboard pressing and powering.

[0054] Testing and Fixing Mechanism

[0055] Keyboard pressing mechanism 9: A lifting cylinder 902 is installed on the top of the fixed frame 901, and the output end is connected to the fixture cover plate 903, which matches the keyboard contour. When pressing down, the keyboard is fixed on the turntable fixture with a fixed deviation of ≤0.1mm.

[0056] Brightness detection camera mechanism 8: Located above the turntable, it includes a high dynamic range (HDR) camera and a filter. It collects the brightness of the keyboard keys after power-on, with a sampling frequency of 100 frames / second, and detects defects such as brightness uniformity and dark areas.

[0057] NG item placement mechanism 10

[0058] Component placement: The top of the mounting frame 1001 is provided with a partition placement frame 1002 and an NG product placement frame 1003;

[0059] Transfer and Lifting: The X-axis moving slide 1004 drives the suction cup module 1005 to transfer defective keyboards; two sets of lifting cylinders 1006 lift the partition and the defective product respectively, making it easy to pick up and put down;

[0060] Feeding at the turning point

[0061] The keyboard to be tested, such as a laptop keyboard, enters the flipping mechanism 1 with its back facing up. The vacuum suction cup 104 picks up the keyboard, and the flipping motor module 102 drives the conveyor belt to flip 180° so that the keyboard faces up. Then the belt transports the keyboard to the feeding line 2.

[0062] Positioning and Transfer

[0063] Coarse positioning: The keyboard moves along the conveyor belt to the area below the coarse positioning camera mechanism 3. The camera takes pictures and uploads the position data to the control system to determine the approximate position of the keyboard.

[0064] Precision positioning: The suction cup fixture 402 of the robotic arm mechanism 4 adsorbs the keyboard and transfers it to the glass stage 505 of the precision positioning camera mechanism 5. The servo motor module 501 drives the positioning camera module 503 to scan the keyboard and obtain the precise coordinates of each key. The data is used for subsequent detection and alignment.

[0065] Inspection station operation

[0066] Turntable transfer: The robotic arm moves the precisely positioned keyboard to the fixture position of the turntable fixture mechanism 6, and the fixture pressure head mechanism 7 presses down to activate the power, causing the keyboard backlight to light up;

[0067] Fixing and Detection: The turntable rotates to the bottom of the keyboard pressing mechanism 9, the lifting cylinder 902 drives the fixture cover plate 903 to press down and fix the keyboard, the brightness detection camera mechanism 8 is activated, the brightness of each key is sampled, and a brightness distribution map is generated;

[0068] Sorting and Processing

[0069] Qualified products: Keyboards that pass the inspection are moved by robotic arms to the next process, such as the packaging line.

[0070] NG product handling: Defective keyboards are moved by a robotic arm to the NG product placement mechanism 10. The X-axis moving slide 1004 drives the suction cup module 1005 to put them into the NG product placement box 1003, and a spacer is taken from the spacer placement box 1002 and placed on it to avoid key wear.

[0071] In summary, the combination of coarse and fine positioning ensures that the keyboard detection alignment error is ≤0.1mm, solving the problem of inaccurate detection caused by positioning deviations in traditional equipment. From flipping and transferring to detection and sorting, no manual intervention is required throughout the entire process. The detection efficiency of a single machine reaches 300 units / hour, while manual detection is only 50 units / hour. The six-axis robot and adjustable fixture are compatible with keyboards of different sizes, such as 10-40cm in width, without the need to change molds, reducing changeover costs. The partitions prevent scratches, and the lifting mechanism facilitates batch handling and improves the efficiency of handling defective products.

[0072] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A keyboard brightness detection device, characterized in that, include; A flipping mechanism (1) and a feeding line (2) disposed at one end thereof, the flipping mechanism (1) being used to flip the incoming keyboard product onto the feeding line (2) and make the keyboard face up; The coarse positioning camera mechanism (3) is located on one side of the feed line (2) and is used to take pictures and position the keyboard products as they flow along the feed line (2) to the bottom of the coarse positioning camera mechanism (3). The robotic arm mechanism (4) is located on one side of the feeding assembly line (2) and is used to transfer keyboard products to various workstations. The fine positioning camera mechanism (5) is located between the feed line (2) and the robot arm mechanism (4). The keyboard products are transferred from the coarse positioning camera mechanism (3) to the fine positioning camera mechanism (5) by using the robot arm mechanism (4) to perform fine positioning operations on the keyboard products. The turntable fixture mechanism (6) is located on one side of the robotic arm mechanism (4), which can drive the keyboard product to rotate. The turntable fixture mechanism (6) is equipped with a fixture pressure head mechanism (7), which plays the role of pressing and energizing the keyboard product. The keyboard pressing mechanism (9) is located on one side above the turntable fixture mechanism (6). The keyboard pressing mechanism (9) plays a role in pressing down and fixing the keyboard product. The brightness detection camera mechanism (8) is located on one side above the turntable fixture mechanism (6) and is used to perform brightness detection on the keyboard product after it is fixed by the keyboard pressing mechanism (9) after the turntable fixture mechanism (6) rotates.

2. The keyboard brightness detection device according to claim 1, characterized in that: The flipping mechanism (1) is supported by a profile frame (101). The top of the profile frame (101) is connected to a conveyor belt (103) with a flipping angle via a flipping motor module (102). A vacuum suction cup (104) is installed on the inner side of the conveyor belt (103) to adsorb the keyboard product.

3. The keyboard brightness detection device according to claim 1, characterized in that: The feeding assembly line (2) is supported by a support frame (201), and the top of the support frame (201) is connected to the assembly line belt (202), which is driven by the assembly line motor (203) installed on the support frame (201).

4. The keyboard brightness detection device according to claim 1, characterized in that: The robotic arm mechanism (4) consists of a six-axis robotic arm (401) mounted on a square tube bracket (403), and the execution end of the six-axis robotic arm (401) is connected to a suction cup fixture (402) for adsorbing and transferring the keyboard product.

5. The keyboard brightness detection device according to claim 1, characterized in that: The precision positioning camera mechanism (5) includes a servo motor module (501), a horizontal adjustment module (502), a positioning camera module (503), a light source module (504), and a glass stage (505); The servo motor module (501) is used to drive the horizontal movement of the horizontal adjustment module (502), and the positioning camera module (503) is installed on the top of the horizontal adjustment module (502), the light source module (504) is installed on the top of the positioning camera module (503), and the glass platform (505) is fixed above the light source module (504) for placing the keyboard product for precise positioning.

6. The keyboard brightness detection device according to claim 1, characterized in that: The keyboard pressing mechanism (9) includes a fixed frame (901), a lifting cylinder (902), and a fixture cover plate (903); The output end of the lifting cylinder (902) is installed downward at the middle position of the top of the fixed frame (901), and the fixture cover plate (903) is fixed to the output end of the lifting cylinder (902).

7. The keyboard brightness detection device according to claim 1, characterized in that: The robotic arm mechanism (4) is provided with an NG item placement mechanism (10) at one end. The NG item placement mechanism (10) includes an installation frame (1001), a partition placement frame (1002), and an NG item placement frame (1003). The partition placement frame (1002) and the NG product placement frame (1003) are respectively fixed on the top two sides of the mounting frame (1001). The partition placement frame (1002) has multiple sets of partitions stacked inside. The NG product placement frame (1003) holds keyboard products that fail the brightness test. After each set of keyboard products is placed, a partition is stacked on top of it to isolate the keyboard products.

8. The keyboard brightness detection device according to claim 7, characterized in that: The NG product placement mechanism (10) further includes an X-axis moving slide (1004) and a suction cup module (1005). The X-axis moving slide (1004) is mounted on the top of the mounting frame (1001), and its sliding end is connected to a suction cup module (1005) for adsorbing keyboard products.

9. The keyboard brightness detection device according to claim 7, characterized in that: The NG product placement mechanism (10) also includes two sets of lifting cylinders (1006), which respectively lift the products inside the partition placement frame (1002) and the NG product placement frame (1003).

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