Four-side size detection equipment for notebook computer

Abstract

The invention discloses a notebook computer four-side size detection device, and relates to the technical field of notebook computer detection, and the notebook computer four-side size detection device comprises a main body, and a material box assembly line mechanism, a material loading and taking mechanism, a material feeding module, a gap detection mechanism, a step difference detection mechanism, a material discharging module, a material unloading and taking mechanism and a material discharging and placing mechanism which work cooperatively in sequence. According to the invention, the detection efficiency is greatly improved, through automatic material circulation and detection process design, the detection of gaps and step sizes of four sides of the notebook computer can be completed within 13 seconds, and compared with manual detection (the time consumed by a single machine is more than 30 seconds) and semi-automatic equipment, the takt requirement of large-scale production is met, the detection precision is improved, and the detection cost is reduced. The multi-axis moving module is matched with the industrial CCD camera and the 3D camera module, the stable positioning mechanism is combined, the detection precision is high, the high-precision assembly requirement of 0.05 mm-level tolerance can be met, the manual intervention requirement is reduced, product surface scratching possibly caused by secondary positioning is avoided, and the defective product rate is reduced.

Description

Technical Field

[0001] This invention relates to the field of laptop computer inspection technology, specifically to a device for inspecting the four dimensions of a laptop computer. Background Technology

[0002] In the manufacturing process of laptops, the assembly precision of components such as the casing directly affects the product's appearance quality, user experience, and structural stability. Among these, the GAP (gap) and STEP (step difference) dimensions between the C-side and D-side are key inspection indicators. The C-side is the keyboard panel, and the D-side is the keyboard panel casing. Currently, the industry relies heavily on manual or semi-automated equipment for GAP and STEP dimension inspection in laptops, which presents the following problems:

[0003] Low inspection efficiency: Traditional manual inspection requires measuring each side with tools such as feeler gauges and calipers. The inspection time for a single product usually exceeds 30 seconds, which is difficult to meet the pace requirements of large-scale production. Some semi-automated equipment has a long inspection cycle due to unreasonable process design and cannot adapt to the production rhythm of high production lines.

[0004] Insufficient inspection accuracy: Manual inspection is easily affected by subjective factors such as operating techniques and visual fatigue, and the accuracy can usually only reach 0.1mm or more. Existing automated equipment mostly uses fixed cameras to take pictures, which is difficult to cover the complex contours of the four sides of the product. In addition, the positioning mechanism is not stable enough, resulting in large inspection errors and failing to meet the requirements of high-precision assembly (such as 0.05mm tolerance).

[0005] Poor process continuity: The existing equipment lacks coordinated design in the processes of material picking, positioning, inspection, and unloading. The flow of products between workstations is prone to jamming or positioning deviation, requiring frequent manual intervention and adjustment. This not only affects inspection efficiency but may also cause scratches on the product surface due to secondary positioning, increasing the defect rate. Summary of the Invention

[0006] Therefore, the purpose of this invention is to provide a device for detecting the four sides of a laptop computer, so as to solve the technical problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a notebook computer four-sided dimension detection device, comprising a main body, wherein the main body serves as the overall mounting base for the device;

[0008] The material box assembly line mechanism is located on one side of the main body and is used to transport the material box placement frame containing the laptop to be tested and to position the material box placement frame and the laptop. The loading and unloading mechanism is located above the material box assembly line mechanism and is used to pick up the laptop to be tested from the material box assembly line mechanism and transfer it to the designated position.

[0009] Specifically, the material box assembly line mechanism includes a movable support frame, an assembly line belt, a drive motor, a material box placement frame, and a push positioning module. The assembly line belt is installed on the top of the movable support frame, the drive motor is driven and connected to the assembly line belt, the material box placement frame is placed on the top of the assembly line belt, and the push positioning module is located on one side of the movable support frame and corresponds to the screen position of the laptop computer inside the material box placement frame.

[0010] The inside of the material box placement frame is equipped with an elastic buffer pad, and the two sides of the material box placement frame are provided with positioning grooves that cooperate with the push positioning module.

[0011] The feeding module corresponds to the output end of the feeding and unloading mechanism. It is used to receive the laptop computer to be tested transferred by the feeding and unloading mechanism and transport it to the testing station. The feeding and unloading mechanism includes a horizontal axis module, a vertical axis module and a gripper module. The vertical axis module is slidably connected to the bottom of the horizontal axis module, and the gripper module is installed at the output end of the vertical axis module.

[0012] The gap detection mechanism is connected to the output end of the feeding module and is used to detect the gap dimensions of the four sides of the laptop to be inspected. The gap detection mechanism includes a fixed frame, a Z-axis moving module, a Y-axis moving module, an X-axis moving module, a rotary motor, and a gap detection camera module. The Y-axis moving module is mounted on the top of the fixed frame, the X-axis moving module is slidably connected to the output end of the Y-axis moving module, the Z-axis moving module is slidably connected to the output end of the X-axis moving module, the rotary motor is mounted on the output end of the Z-axis moving module, and the gap detection camera module is mounted on the output end of the rotary motor.

[0013] The Z-axis moving module, Y-axis moving module, and X-axis moving module are all ball screw slide structures driven by servo motors. The gap detection camera module is an industrial CCD camera with a ring light at the lens.

[0014] Below both the gap detection mechanism and the step difference detection mechanism, there is a conveying module that is flush with the feeding module. The conveying module is equipped with a positioning mechanism, which includes a positioning cylinder and a positioning plate. The output end of the positioning cylinder is connected to the positioning plate.

[0015] The step difference detection mechanism is connected to the output end of the gap detection mechanism and is used to detect the step difference dimensions of the four sides of the laptop after gap detection. The step difference detection mechanism includes a vertical adjustment module, an angle adjustment module and a D camera module. The angle adjustment module is installed at the output end of the vertical adjustment module and the D camera module is installed at the output end of the angle adjustment module.

[0016] The discharge module is connected to the output end of the step difference detection mechanism and is used to receive the laptop after step difference detection and transport it to the unloading position. The unloading and picking mechanism is set above the discharge module and is used to pick up the laptop after detection from the discharge module and transfer it to the designated position. The discharge placement mechanism corresponds to the output end of the unloading and picking mechanism and is used to receive and place the laptop after detection transferred by the unloading and picking mechanism.

[0017] The gripper module includes a cylinder and two sets of gripper plates. The output end of the cylinder is driven to the two sets of gripper plates. The inner side of the two sets of gripper plates is provided with a rubber anti-slip layer.

[0018] Both the feeding module and the discharging module are motor-driven conveyor belt structures, and the surface of the conveyor belt is provided with positioning bosses; the discharging placement mechanism includes a placement platform and a sorting baffle, the sorting baffle is connected to the placement platform through an electric push rod, and the surface of the placement platform is provided with a pressure sensor.

[0019] In summary, the present invention has the following main advantages: It significantly improves detection efficiency. Through automated material flow and detection process design, it can complete the detection of gaps and step differences on all four sides of a laptop computer within 13 seconds. Compared to traditional manual detection (over 30 seconds per unit) and some semi-automated equipment, it significantly adapts to the cycle time requirements of large-scale production, improves detection accuracy, and achieves a detection accuracy of 0.02mm by using a multi-axis moving module in conjunction with an industrial CCD camera and a 3D camera module, combined with a stable positioning mechanism, meeting tolerances of 0.05mm. The high-precision assembly requirements overcome the problems of subjective factors affecting manual inspection and large errors caused by incomplete coverage and unstable positioning of existing automated equipment. It enhances process continuity and achieves automated flow from material picking to inspection to unloading through the coordinated design of the material box assembly line mechanism, material loading and unloading mechanism, feeding module, inspection mechanism, unloading module, unloading and unloading mechanism and unloading placement mechanism. This reduces the jamming and positioning offset of products in the flow between workstations, reduces the need for manual intervention, avoids product surface scratches that may be caused by secondary positioning, and reduces the defect rate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0022] Figure 3 This is a top view of the entire invention;

[0023] Figure 4 This is an enlarged view of the material box assembly line mechanism of the present invention;

[0024] Figure 5This is an enlarged view of the material handling mechanism of the present invention;

[0025] Figure 6 This is an enlarged view of the gap detection mechanism of the present invention;

[0026] Figure 7 This is an enlarged view of the step difference detection mechanism of the present invention.

[0027] In the diagram: 1. Main body; 2. Material box assembly line mechanism; 201. Moving support frame; 202. Assembly line belt; 203. Drive motor; 204. Material box placement frame; 205. Pushing and positioning module; 3. Material loading and unloading mechanism; 301. Horizontal axis module; 302. Vertical axis module; 303. Gripper module; 4. Feeding module; 5. Gap detection mechanism; 501. Fixing frame; 502. Z-axis moving module; 503. Y-axis moving module; 504. X-axis moving module; 505. Rotary motor; 506. Gap detection camera module; 6. Step difference detection mechanism; 601. Vertical adjustment module; 602. Angle adjustment module; 603. 3D camera module; 7. Discharge module; 8. Unloading and unloading mechanism; 9. Discharge placement mechanism. Detailed Implementation

[0028] The technical solutions of the embodiments 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.

[0029] The embodiments of the present invention will now be described.

[0030] Example 1

[0031] This embodiment discloses the specific structure and assembly method of a device for measuring the four sides of a laptop computer, such as... Figures 1 to 7 As shown, the equipment includes a main body 1, which is constructed with aluminum alloy profiles and encased in steel plates to form a stable foundation for equipment installation.

[0032] A material box assembly line mechanism 2 is provided on one side of the main body 1. The movable support frame 201 of the material box assembly line mechanism 2 is a welded steel structure. The top of the mechanism is equipped with an assembly line belt 202 through a bearing seat. The active roller shaft of the assembly line belt 202 is connected to the output shaft of the drive motor 203 through a coupling. The drive motor 203 is a 57 stepper motor with a driver. The material box placement frame 204 is made of ABS plastic injection molding. A 3mm thick silicone buffer pad is pasted inside. Positioning slots that are compatible with the push positioning module 205 are symmetrically opened on both sides. The push positioning module 205 is composed of a servo electric cylinder and a polyurethane push block, and is fixed to one side of the movable support frame 201 by a bracket.

[0033] The material loading and unloading mechanism 3 is installed above the material box assembly line mechanism 2 via a gantry frame. Both the horizontal axis module 301 and the vertical axis module 302 are ball screw slide structures. The effective stroke of the horizontal axis module 301 is 800mm, and the effective stroke of the vertical axis module 302 is 300mm. Both are equipped with 200W servo motors. The gripper module 303 is fixed to the slider of the vertical axis module 302 via a flange. Its cylinder is a thin cylinder with a diameter of 32mm. The gripper plate is made of nylon material with an inner vulcanized rubber anti-slip layer with a thickness of 2mm.

[0034] The feeding module 4 is aligned with the output end of the feeding and unloading mechanism 3. Its conveyor belt is made of food-grade PU material, with a width of 300mm and a 100mm interval positioning boss integrally formed on the surface. The drive motor is a DC motor with a reducer, and the speed is set to 1m / s.

[0035] The fixing frame 501 of the gap detection mechanism 5 is made of cast iron. The top of the frame is equipped with a Y-axis moving module 503 through a T-slot. The X-axis moving module 504 is fixed on the slider of the Y-axis moving module 503. The Z-axis moving module 502 is vertically installed on the slider of the X-axis moving module 504. All three are 40-type ball screw slides with a repeatability accuracy of ±0.01mm. The output end of the Z-axis moving module 502 is connected to the gap detection camera module 506 through a rotary motor 505. The rotary motor 505 is a hollow shaft stepper motor that can achieve continuous rotation from 0 to 360°. The gap detection camera module 506 uses a 2-megapixel industrial CCD camera, equipped with an 8mm fixed-focus lens and a ring LED fill light. The brightness of the fill light can be adjusted by a PLC.

[0036] The vertical adjustment module 601 of the step difference detection mechanism 6 is an electric push rod. The end of the push rod is connected to the angle adjustment module 602 through a rotating shaft. The angle adjustment module 602 is composed of a servo motor driving a harmonic reducer. The output end is fixed to the 3D camera module 603. The 3D camera module 603 adopts a line scan camera based on the laser triangulation principle. The measurement range is 0-5mm and the accuracy can reach 0.005mm.

[0037] The discharge module 7 and the feeding module 4 have the same structure and are symmetrically arranged on the other side of the main body 1. The unloading and picking mechanism 8 and the loading and picking mechanism 3 use the same model of module and drive components and are installed above the discharge module 7.

[0038] The electrical control of each unit is centrally controlled by a Siemens S7-1200 series PLC. All motor drivers and sensor signals are connected to the PLC's I / O module. The human-machine interface uses a 10.1-inch touch screen, which can display detection data and equipment status in real time.

[0039] The working principle of this invention is as follows: This device is used to detect the gap and step dimensions of the C and D sides of a laptop computer. Its working principle revolves around an automated material flow and precise detection process.

[0040] First, the staff places the laptop to be tested inside the material box placement frame 204 of the material box production line mechanism 2. At this time, the positioning mechanism of the equipment on it first positions the material box placement frame 204 and the laptop to ensure that the material picking position is accurate.

[0041] Furthermore, if the screen of the laptop to be tested is in the open state, the push positioning module 205 located behind the screen will be activated to push the screen of the laptop and rotate it to a specified angle position. If the laptop to be tested is in the closed state, the push positioning module 205 will not be activated. In other words, the laptop can be tested in different states.

[0042] Then the feeding and unloading mechanism 3 picks up the laptop and places it on top of the feeding module 4 to prepare for subsequent testing;

[0043] Specifically, the feeding and picking mechanism 3, under the movement and adjustment of the horizontal axis module 301 and the vertical axis module 302, aligns the gripper module 303 located at the execution end of the vertical axis module 302 with the product. Then, the vertical axis module 302 descends, allowing the gripper module 303 to grip the product. The gripper module 303 uses a cylinder to drive the two sets of gripper plates to retract, thereby completing the gripping action of the product.

[0044] To elaborate further, the feeding module 4 is a motor-driven conveyor belt structure. After the product is placed on top of the conveyor belt on the feeding module 4, the conveyor belt starts and can drive the product to move and circulate.

[0045] Next, the product flows from the feeding module 4 into the gap detection mechanism 5. Below the gap detection mechanism 5, there is also a conveying module flush with the feeding module 4. That is, at this time, the product flows from the feeding module to the conveying module of the gap detection mechanism 5. The positioning mechanism on the conveying module repositions the product to ensure the stability of the detection benchmark. Then, the gap detection camera module 506 moves to the corresponding position under the action of the Z-axis moving module 502, Y-axis moving module 503, and X-axis moving module 504 to take pictures and detect the gap size of the product. At the same time, the gap detection camera module 506 located on the execution end of the X-axis moving module 504 can rotate at an angle under the action of the rotary motor 505, so as to visually detect the gap of the laptop from different angles. At this time, the gap between the laptop frame and the panel with the keyboard is detected. After completion, the product flows through the conveying module to the step difference detection mechanism 6.

[0046] A conveying module is also provided below the step difference detection mechanism 6. In other words, the product is transferred from the conveying module of the gap detection mechanism 5 to the conveying module of the step difference detection mechanism 6.

[0047] At step difference detection mechanism 6, the positioning mechanism on the conveying module repositions the product, and the 3D camera module 603 moves to take pictures to complete the detection of the STEP dimension. At this time, the height difference between the laptop frame and the panel with the keyboard is visually detected.

[0048] Among them, the 3D camera module 603 can be height adjusted by the vertical adjustment module 601, and can also be angled by the angle adjustment module 602. This module realizes the camera's movement for taking pictures, and the camera angle can be rotated by a rotary motor for products with different angles.

[0049] After all tests are completed, the product flows to the unloading mechanism 7, where the unloading and picking mechanism 8 removes the product and moves it to the unloading and placing mechanism 9, thus completing the entire testing process.

[0050] Furthermore, the discharge module 7 and the feed module 4 have the same structure and the same operating process;

[0051] Similarly, the unloading and picking mechanism 8 has the same structure as the loading and picking mechanism 3, and both use grippers to pick up and remove the laptop computer.

[0052] The entire process, through the coordinated operation of various mechanisms, achieves automated flow from material picking to inspection to unloading. It can complete the GAP and STEP dimension inspection of the four sides of the laptop within 13 seconds, and the equipment accuracy can reach 0.02mm.

[0053] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. 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 invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A device for detecting the four sides of a laptop computer, comprising a main body (1), characterized in that: The main body (1) serves as the foundation for the overall installation of the equipment; The material box assembly line mechanism (2) is located on one side of the main body (1) and is used to transport the material box placement frame (204) containing the laptop computer to be tested and to position the material box placement frame (204) and the laptop computer. The loading and unloading mechanism (3) is located above the material box assembly line mechanism (2) and is used to pick up the laptop computer to be tested from the material box assembly line mechanism (2) and transfer it to the designated position. The feeding module (4) corresponds to the output end of the feeding and picking mechanism (3) and is used to receive the laptop computer to be tested transferred by the feeding and picking mechanism (3) and transport it to the testing station. The gap detection mechanism (5) is connected to the output end of the feeding module (4) and is used to detect the gap size of the four sides of the laptop computer to be tested. The step difference detection mechanism (6) is connected to the output end of the gap detection mechanism (5) and is used to detect the step difference size of the four sides of the laptop computer after gap detection. The discharge module (7) is connected to the output end of the step difference detection mechanism (6) and is used to receive the laptop after step difference detection and transport it to the unloading position. The unloading and picking mechanism (8) is set above the discharge module (7) and is used to pick up the laptop after detection from the discharge module (7) and transfer it to the designated position. The discharge placement mechanism (9) corresponds to the output end of the unloading and picking mechanism (8) and is used to receive and place the laptop after detection transferred by the unloading and picking mechanism (8).

2. The notebook computer four-sided dimension detection device according to claim 1, characterized in that: The material box assembly line mechanism (2) includes a movable support frame (201), an assembly line belt (202), a drive motor (203), a material box placement frame (204), and a push positioning module (205). The assembly line belt (202) is installed on the top of the movable support frame (201). The drive motor (203) is driven and connected to the assembly line belt (202). The material box placement frame (204) is placed on the top of the assembly line belt (202). The push positioning module (205) is located on one side of the movable support frame (201) and corresponds to the screen position of the laptop computer in the material box placement frame (204).

3. The notebook computer four-sided dimension detection device according to claim 1, characterized in that: The feeding and unloading mechanism (3) includes a horizontal axis module (301), a vertical axis module (302) and a gripper module (303). The vertical axis module (302) is slidably connected to the bottom of the horizontal axis module (301), and the gripper module (303) is installed at the output end of the vertical axis module (302).

4. The notebook computer four-sided dimension detection device according to claim 1, characterized in that: The gap detection mechanism (5) includes a fixed frame (501), a Z-axis moving module (502), a Y-axis moving module (503), an X-axis moving module (504), a rotary motor (505), and a gap detection camera module (506). The Y-axis moving module (503) is mounted on the top of the fixed frame (501). The X-axis moving module (504) is slidably connected to the output end of the Y-axis moving module (503). The Z-axis moving module (502) is slidably connected to the output end of the X-axis moving module (504). The rotary motor (505) is mounted on the output end of the Z-axis moving module (502). The gap detection camera module (506) is mounted on the output end of the rotary motor (505).

5. The notebook computer four-sided dimension detection device according to claim 1, characterized in that: The step difference detection mechanism (6) includes a vertical adjustment module (601), an angle adjustment module (602), and a 3D camera module (603). The angle adjustment module (602) is installed at the output end of the vertical adjustment module (601), and the 3D camera module (603) is installed at the output end of the angle adjustment module (602).

6. The notebook computer four-sided dimension detection device according to claim 2, characterized in that: The material box placement frame (204) is provided with an elastic buffer pad inside, and the material box placement frame (204) has positioning grooves on both sides that cooperate with the push positioning module (205).

7. The notebook computer four-sided dimension detection device according to claim 3, characterized in that: The gripper module (303) includes a cylinder and two sets of gripper plates. The output end of the cylinder is driven to the two sets of gripper plates. The inner side of the two sets of gripper plates is provided with a rubber anti-slip layer.

8. The notebook computer four-sided dimension detection device according to claim 4, characterized in that: The Z-axis moving module (502), Y-axis moving module (503) and X-axis moving module (504) are all ball screw slide structures driven by servo motors, and the gap detection camera module (506) is an industrial CCD camera with a ring light at the lens.

9. The notebook computer four-sided dimension detection device according to claim 5, characterized in that: Below the gap detection mechanism (5) and the step difference detection mechanism (6) are conveying modules that are flush with the feeding module (4). The conveying module is equipped with a positioning mechanism, which includes a positioning cylinder and a positioning plate. The output end of the positioning cylinder is connected to the positioning plate.

10. The notebook computer four-sided dimension detection device according to claim 1, characterized in that: The feeding module (4) and the discharging module (7) are both motor-driven conveyor belt structures, and the surface of the conveyor belt is provided with positioning bosses; the discharging placement mechanism (9) includes a placement platform and a sorting baffle. The sorting baffle is connected to the placement platform through an electric push rod, and a pressure sensor is provided on the surface of the placement platform.

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