A detection device for a tablet computer
Patent Information
- Application Number
- CN202522559129.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-02
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-02
AI Technical Summary
Existing tablet computer testing equipment requires different light sources for different tablet computer models, which increases costs and makes it impossible to test multiple models.
A detection device for tablet computers was designed, which uses an adjustable ring light source and a strip light source arranged alternately, combined with an industrial camera, to achieve multi-angle illumination through movement and angle adjustment, and is suitable for the detection of different models of tablet computers.
It achieves the ability to adapt to different models of detection without precise positioning by adjusting the light source, thereby reducing costs and improving detection efficiency and accuracy.
Smart Images
Figure CN224933869U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing equipment for tablet computer production lines, and in particular to a testing device for tablet computers. Background Technology
[0002] Tablet computers are frequently used in daily life. During the manufacturing process, the appearance of the finished tablets needs to be inspected to determine if they meet standards. Because different tablet models have different sizes, the required angle of illumination from the inspection light source varies. Current tablet inspection methods require precise positioning to ensure the tablet is directly below the inspection point, and different light sources need to be used for different tablets, increasing costs and making it impossible to use the same equipment to inspect multiple models. Utility Model Content
[0003] To address the shortcomings of existing devices, this invention provides a detection device for tablet computers.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a detection device for tablet computers, including a base, on which an industrial camera that can move along the X-axis and Z-axis and an annular light source located below the industrial camera are coaxially mounted, and on the base, below the annular light source, a bar light source that can be raised and lowered and whose angle can be adjusted, and a positioning mechanism for placing and positioning the tablet computer located below the bar light source are arranged, and the bar light source and the annular light source are arranged alternately.
[0005] Preferably, the base is provided with a lifting cylinder and a first linear guide rail driven by the lifting cylinder. A square annular mounting frame slides on the first linear guide rail, and the strip light source is disposed on one or more edges of the mounting frame.
[0006] Preferably, the mounting frame is provided with a strip-shaped mounting base, the strip light source is arranged on the strip-shaped mounting base along the long side direction, and mounting plates mounted on the mounting frame are limited and slidably mounted at both ends of the long side of the strip-shaped mounting base.
[0007] Preferably, each of the mounting plates is provided with an arc-shaped through hole, and the mounting plate is provided with an indicator scale on the outer edge of the arc-shaped through hole. The strip-shaped mounting seat is slidably disposed in the arc-shaped through hole by a rotating shaft.
[0008] Preferably, the mounting frame and the slider of the first linear guide are connected by a right-angled triangular support plate.
[0009] Preferably, the mounting frame is connected to a first linear guide rail on both opposite sides, and each of the first linear guide rails is connected to a lifting cylinder.
[0010] Preferably, the positioning mechanism includes a positioning seat on the base, a plurality of suction cups in the middle of the positioning seat, and a plurality of rotary clamping cylinders on opposite sides of the positioning seat.
[0011] Preferably, the positioning seat is vertically mounted on the base, and the suction cup and rotary clamping cylinder are both mounted on the side wall of the positioning seat. The positioning mechanism also includes a support foot that can elastically extend and retract, located at the lower edge of the positioning seat.
[0012] Preferably, the suction cup and the rotary clamping cylinder are arranged in a one-to-one correspondence.
[0013] Preferably, the base is provided with a gantry frame, the crossbeam of the gantry frame is provided with a second linear guide rail, and a third linear guide rail in the vertical direction is slidably mounted on the second linear guide rail. The industrial camera and the ring power supply are respectively slidably mounted on the third linear guide rail.
[0014] The beneficial effects of this utility model are as follows: the utility model sets the light source to an adjustable structure, eliminating the need for precise positioning of the tablet computer. Different angles of illumination can be achieved by adjusting the light source, which facilitates the detection of tablet computers and can be applied to the detection of different models of tablet computers, saving costs and meeting different needs. Attached Figure Description
[0015] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model; Figure 2 This is an embodiment of the present utility model. Figure 1 A magnified structural diagram of A in the middle; Figure 3 This is an embodiment of the present utility model. Figure 1 A magnified structural diagram of B in the diagram; Component names and serial numbers in the diagram: 1-Base, 10-Lifting cylinder, 11-First linear guide rail, 110-Right-angled triangle support plate, 2-Industrial camera, 3-Ring light source, 4-Strip light source, 5-Positioning mechanism, 50-Positioning seat, 51-Suction cup, 52-Rotary clamping cylinder, 53-Supporting foot, 530-Supporting base, 531-Sliding cylinder, 532-Telescopic spring, 6-Mounting frame, 60-Strip mounting seat, 61-Mounting plate, 610-Arc-shaped through hole, 611-Indicating scale, 7-Gantry frame, 70-Second linear guide rail, 71-Third linear guide rail. Detailed Implementation
[0016] To more clearly illustrate the purpose, technical solution, and advantages of the embodiments of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. A clear and complete description will be provided. Obviously, the described embodiments are some, but not all, embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.
[0017] Examples of embodiments of this utility model Figures 1 to 3 As shown, an inspection device for a tablet computer includes a base 1, which is used to mount the inspection device at a corresponding workstation. An industrial camera 2, movable along the X and Z axes, and a ring light source 3 located below the industrial camera 2 are coaxially mounted on the base 1. The ring light source 3 is a circular light source, and the industrial camera 2 is positioned above and on the axis of the ring light source 3, providing the industrial camera 2 with uniform, shadow-free illumination. By moving along the X-axis, the horizontal position of the industrial camera 2 and the ring light source 3 relative to the tablet computer can be adjusted. For example, aligning the center of the light source with the center of the tablet computer ensures uniform illumination, or, as needed, offsetting the center of the light source from the center of the tablet computer to create specific directional illumination, thereby producing shadows to highlight defects. For example, for directional scratches, lighting from a direction perpendicular to the scratch can more clearly highlight the scratch. By moving along the Z-axis, the illumination range can be adjusted. When the ring light source 3 moves away from the tablet computer, the light illuminates the tablet computer surface at a smaller angle. It can better highlight any tiny bumps, dents, and other defects. When the ring light source 3 is close to the tablet computer, the light is closer to perpendicular incidence, which can better highlight scratches, dents, and other defects. The base 1 has a height-adjustable and angle-adjustable strip light source 4 below the ring light source 3, and a positioning mechanism 5 for placing and positioning the tablet computer below the strip light source 4. The strip light source 4 and the ring light source 3 are staggered, that is, the strip light source 4 is placed below the ring light source 3 and outside the ring light source 3. The strip light source 4 can adjust its illumination range by raising and lowering, and its illumination angle can also be adjusted according to the detection needs, so as to more accurately detect the defects of the tablet computer. For example, for the same product, multiple pictures can be taken from various angles such as low angle, high angle, and side lighting to detect different defects such as scratches, dents, and particles, which greatly improves the capability of a single inspection station. For tablet computers of different specifications, the illumination conditions that best highlight the target defects can be created by adjusting the illumination angle of the strip light source 4. In use, the tablet computer is manually placed on the positioning mechanism 5 and fixed. Then, by adjusting the positions of the ring light source 3, the industrial camera 2 and the strip light source 4 relative to the tablet computer, the lighting conditions of the target defects can be better highlighted and visual inspection can be performed through the industrial camera.
[0018] Further improvements, such as Figure 1 As shown, a lifting cylinder 10 and a first linear guide rail 11 driven by the lifting cylinder 10 are provided on the base 1. A square annular mounting frame 6 slides on the first linear guide rail 11. A strip light source 4 is set on one or more sides of the mounting frame 6. The mounting frame 6 is a rectangular frame that is set horizontally. The slider of the first linear guide rail 11 is connected to its side. Depending on the usage requirements, the strip light source 4 can be set on any one or more of its four sides, such as on the front and rear sides. Then, the lifting cylinder 10 drives the mounting frame 6 to lift and lower. To ensure the smooth lifting and lowering of the mounting frame 6, first linear guide rails 11 are connected to both opposite sides of the mounting frame 6. Each first linear guide rail 11 is connected to a corresponding lifting cylinder 10. For example, if one first linear guide rail 11 and one lifting cylinder 10 are set on the left and right sides of the mounting frame 6, the sliders of the two first linear guide rails 11 are connected to the left and right sides of the mounting frame 6 respectively. At this time, in order to maintain the stability of the connection structure between the slider of the first linear guide rail 11 and the mounting frame 6, the mounting frame 6 and the slider of the first linear guide rail 11 are connected by a right-angled triangular support plate 110. As for the mounting structure of the strip light source 6 on the mounting frame 6, such as... Figure 1 and Figure 3 As shown, a strip mounting base 60 is provided on the mounting frame 6, and a strip light source 4 is provided on the strip mounting base 60 along the long side direction. Mounting plates 61 are slidably mounted on the mounting frame 6 at both ends of the long side of the strip mounting base 60. That is, two mounting plates 61 are arranged side by side at intervals along the extension direction of the frame on the side or bottom surface of the frame of the mounting frame 6, and then the strip mounting base 60 is slidably mounted on the mounting plates 61. For the limiting sliding structure between the strip mounting base 60 and the mounting plate 61, each mounting plate 61 is provided with an arc-shaped through hole 610. The mounting plate 61 has an indicator scale 611 on the outer edge of the arc-shaped through hole 610. The indicator scale 611 is used to indicate angle values. The strip mounting base 60 is limited and slidably positioned in the arc-shaped through hole 610 by a rotating shaft. In one case, the rotating shaft can be a cylindrical extension arm extending from the side wall of the strip mounting base 60. In this case, the extension arm slides in the arc-shaped through hole 610 and its end does not protrude from the arc-shaped through hole 610. The end of the strip mounting base 60 is provided with a threaded hole. Then, a bolt (such as a bolt with a washer) that can press against the outer end face of the arc-shaped through hole 610 is threaded into the threaded hole to fix the strip mounting base 60. When it is necessary to adjust the angle of the strip light source, loosen the connection between the bolt and the threaded hole, then rotate the strip mounting base 60 to the required angle and then tighten the bolt to achieve the sliding limit of the strip mounting base 60. In another case, the side wall of the strip mounting base 60 does not extend out of the extension arm, but the threaded hole is set on its side wall, and then the bolt threaded into the threaded hole is used as the rotating shaft.
[0019] Further improvements, such as Figure 1 and Figure 2 As shown, the positioning mechanism 5 includes a positioning seat 50 mounted on the base 1, multiple suction cups 51 located in the middle of the positioning seat 50, and multiple rotary clamping cylinders 52 located on opposite sides of the positioning seat 50. The suction cups 51 are located in the middle of the positioning seat 50. The suction cups 51 are vacuum suction cups made of silicone or rubber to avoid damaging the tablet computer. The suction cups 51 and rotary clamping cylinders 52 are arranged one-to-one. For example, if four suction cups 51 are set, they are positioned at the four vertices of a rectangle or square. There are also four rotary clamping cylinders 52, which are arranged one-to-one with the suction cups 51. The parts of the cylinders that come into contact with the tablet computer are also equipped with silicone or rubber pads. In use, the tablet computer is first attached to the suction cups 51 and then pressed against the tablet computer by the rotary clamping cylinders 52. The positioning seat 50 is vertically set on the base 1. This means that after the tablet computer is placed on the positioning seat 50, the tablet computer is placed vertically. This allows for better inspection of the tablet computer's frame and components on the frame. It also reduces light reflection interference from smooth surfaces such as the tablet computer's screen, and better highlights scratches and defects on these smooth surfaces. After inspecting one side of the tablet computer, the tablet computer can be manually turned to switch to the other side. At this time, the suction cup 51 and the rotary clamping cylinder 52 are both set on the side wall of the positioning seat 50. The positioning mechanism 5 also includes a support foot 53 that can be elastically extended and retracted at the lower edge of the positioning seat 50. For example, one suction cup 51 is set at the upper left, lower left, upper right and lower right positions of the side wall of the positioning seat 50, forming the four vertices of a rectangle or square. At the same time, a rotary clamping cylinder 52 is set on the outside of each of them. Two support feet 53 are set side by side at intervals on the lower side of the positioning seat 50. In this way, after the tablet computer is placed on the positioning seat 50, its back is the suction cup 51, the left and right sides of the front are fixed by the rotary clamping cylinder 52, and the bottom is fixed by the support foot 53, thus ensuring that the tablet computer is fixed on the positioning seat 50. The mounting structure of each support leg 53 on the positioning seat 50 is as follows: the support leg 53 is set in an L-shaped structure. First, the support base 530 is fixedly installed on the positioning seat 50. The top left and right sides of the support base 530 are respectively provided with a support seat through hole that passes through the upper and lower surfaces of the support base 530. Then, a sliding cylinder 531 is slidably installed in each support seat through hole. The bottom surface of the horizontal end of the support leg 53 is fixedly installed on the top surface of the two sliding cylinders 531. The vertical end of the support leg 53 is set away from the positioning seat 50. At the same time, a blind hole is set between the two sliding cylinders on the top surface of the support base 530. A telescopic spring 532 is installed in the blind hole. The top end of the telescopic spring 532 is fixedly connected to the bottom surface of the horizontal end of the support leg 53, and the bottom end of the telescopic spring 532 is fixedly connected to the bottom of the blind hole.
[0020] Further improvements, such as Figure 1 As shown, a gantry frame 7 is mounted on the base 1. A second linear guide rail 70 is mounted on the crossbeam of the gantry frame 7. A third linear guide rail 71 in the vertical direction slides on the second linear guide rail 70. The industrial camera 2 and the ring power supply 3 are respectively slidably mounted on the third linear guide rail 71. The gantry frame 7 is located behind the positioning seat 50 of the positioning mechanism 5. The industrial camera 2 and the ring light source 3 on the gantry frame 7 are positioned facing forward. The guide rail of the second linear guide rail 70 is mounted on the crossbeam of the gantry frame 7 along the X-axis direction. The third linear guide rail 71... The guide rail 71 is vertically mounted on the slider of the second linear guide rail 70. The third linear guide rail 71 moves in the X-axis direction as the slider of the second linear guide rail 70 slides. The third linear guide rail 71 has two sliders: the industrial camera 2 is mounted on the upper slider of the third linear guide rail 71, and the ring light source 3 is mounted on the lower slider of the third linear guide rail 71. This allows adjustment of the distance between the industrial camera 2 and the ring light source 3, providing a uniform lighting environment for the industrial camera 2. Alternatively, the guide rail 70 can be mounted on the top surface of the gantry beam 7, and the guide rail 71 can be vertically mounted on the front of a vertically positioned plate. The vertical plate is connected to the slider of the second linear guide rail 70 via a connector. This connector can be a right-angled triangle, with one right-angled side connected to the top surface of the slider of the second linear guide rail and the other right-angled side connected to the back surface of the vertical plate.
[0021] Although the present invention has been described in detail above with general description and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.
Claims
1. A detection device for a tablet computer, characterized in that, The device includes a base on which an industrial camera capable of moving along the X and Z axes is coaxially mounted, and a ring light source located below the industrial camera is mounted. Below the ring light source on the base, there is a bar light source that can be raised, lowered, and has an adjustable angle, and below the bar light source, there is a positioning mechanism for placing and positioning a tablet computer. The bar light source and the ring light source are arranged alternately.
2. The detection device for a tablet computer according to claim 1, characterized in that, The base is provided with a lifting cylinder and a first linear guide rail driven by the lifting cylinder. A square annular mounting frame slides on the first linear guide rail, and the strip light source is set on one or more edges of the mounting frame.
3. The detection device for a tablet computer according to claim 2, characterized in that, The mounting frame is provided with a strip-shaped mounting base, and the strip light source is arranged on the strip-shaped mounting base along the long side. At both ends of the long side of the strip-shaped mounting base, mounting plates are slidably mounted on the mounting frame.
4. The detection device for a tablet computer according to claim 3, characterized in that, Each of the mounting plates is provided with an arc-shaped through hole, and the mounting plate is provided with an indicator scale on the outer edge of the arc-shaped through hole. The strip-shaped mounting seat is slidably positioned in the arc-shaped through hole by a rotating shaft.
5. The detection device for a tablet computer according to claim 2, characterized in that, The mounting frame and the slider of the first linear guide are connected by a right-angled triangular support plate.
6. The detection device for a tablet computer according to claim 2, characterized in that, The mounting frame is connected to a first linear guide rail on each of its opposite sides, and each of the first linear guide rails is connected to a lifting cylinder.
7. The detection device for a tablet computer according to claim 1, characterized in that, The positioning mechanism includes a positioning seat mounted on the base, multiple suction cups mounted in the middle of the positioning seat, and multiple rotary clamping cylinders mounted on opposite sides of the positioning seat.
8. The detection device for a tablet computer according to claim 7, characterized in that, The positioning seat is vertically mounted on the base, and the suction cup and rotary clamping cylinder are both mounted on the side wall of the positioning seat. The positioning mechanism also includes a support foot that can elastically extend and retract, located at the lower edge of the positioning seat.
9. The detection device for a tablet computer according to claim 7, characterized in that, The suction cups and rotary clamping cylinders are set in a one-to-one correspondence.
10. The detection device for a tablet computer according to claim 1, characterized in that, A gantry frame is provided on the base, and a second linear guide rail is provided on the crossbeam of the gantry frame. A third linear guide rail in the vertical direction slides on the second linear guide rail, and the industrial camera and the ring power supply are respectively slidably mounted on the third linear guide rail.