A notebook flatness testing mechanism

Abstract

This utility model discloses a notebook flatness testing mechanism, including a frame and a fixture. The fixture is located in the middle of the frame and is used to place the D-side of the notebook product, exposing the joint end of the A-side and D-side outside the fixture. The moving frame includes an X-axis moving frame and a Y-axis moving frame located on the X-axis moving frame. The Y-axis moving frame includes a Y-axis guide rail, a Y-axis slider, and a Y-axis driving device for driving the Y-axis slider. A side detection device is fixedly provided on one side of the Y-axis guide rail, and the detection angle of the side detection device is tilted. The Y-axis slider is provided with a bottom detection device. The side detection device is used to obtain first data of the joint end, and the bottom detection device is used to obtain second data of the joint segment. Unlike existing testing equipment, two sets of testing equipment are used, with the side detection device fixedly installed.

Description

Technical Field

[0001] This utility model relates to the field of notebook computer testing equipment, and in particular to a notebook computer flatness testing mechanism. Background Technology

[0002] Laptops consist of an A-side, a B-side, a C-side, and a D-side. As the requirements for hinge structure inspection increase, the flatness between the A-side and the D-side has also become one of the inspection requirements.

[0003] However, existing detection methods are quite complex, generally employing multiple laser detection devices and horizontal detection devices to achieve flatness detection. For software algorithms, multiple laser detections are compared with fitted images, resulting in a large amount of data to be detected by the computer, which reduces its detection efficiency and places high demands on hardware, thus affecting the large-scale production of the equipment.

[0004] For example, Chinese patent CN202510138545.7, this design cannot meet the above-mentioned testing requirements. Utility Model Content

[0005] The main purpose of this invention is to propose a notebook flatness detection mechanism, which aims to reduce the computational data of the detection software. The flatness between surface A and surface D can be matched by multiple monitoring devices, thereby reducing installation accuracy and simplifying the detection process.

[0006] To achieve the above objectives, this utility model proposes a notebook flatness detection mechanism, comprising:

[0007] frame;

[0008] A fixture is located in the middle of the frame and is used to place the D side of the notebook product and expose the connecting end of the A side and the D side outside the fixture.

[0009] The movable frame includes an X-axis movable frame and a Y-axis movable frame disposed on the X-axis movable frame.

[0010] The Y-axis moving frame includes a Y-axis guide rail, a Y-axis slider, and a Y-axis driving device for driving the Y-axis slider to move.

[0011] A lateral detection device is fixedly installed on one side of the Y-axis guide rail, and the detection angle of the lateral detection device is set at an angle.

[0012] The Y-axis slider is equipped with a bottom detection device.

[0013] The side detection device is used to acquire first data of the connecting end, and the bottom detection device is used to acquire second data of the connecting segment.

[0014] Unlike existing testing equipment, this system employs two sets of testing devices, with a fixed lateral testing unit that allows for the acquisition of initial data from the inclined angle of the joint.

[0015] Additionally, a second data point can be acquired along the length of the laptop via a bottom detection device that can move along the Y-axis.

[0016] In other words, a fixed lateral detection device with a fixed viewing angle can acquire data from the connection end, while a horizontal viewing angle can acquire data in the horizontal direction.

[0017] This allows for the acquisition of fitting data between the A and D sides of the laptop, thereby improving detection accuracy and increasing detection efficiency.

[0018] For example Figure 5 The outline is extracted from the point cloud, and then a straight line is fitted by analyzing the outline to obtain the angle between the two straight lines.

[0019] For example Figure 6 The data, from 10 dynamic measurements, showed a maximum flatness repeatability of 0.016 mm and a maximum angle repeatability of 0.325°.

[0020] For example Figure 7 The inspection flowchart shows that visual inspection takes 1 second per piece, XY movement time takes 2 seconds, and manual placement of the notebook takes 5 seconds per piece, for a total of 8 seconds per piece. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the present utility model. Figure 1 ;

[0022] Figure 2 This is a three-dimensional schematic diagram of the present utility model. Figure 2 ;

[0023] Figure 3 This is a three-dimensional schematic diagram of the present utility model. Figure 3 ;

[0024] Figure 4 This is a cross-sectional view of the present invention;

[0025] Figure 5 A schematic diagram of contour shaping for cropping point clouds in an image;

[0026] Figure 6 For detection data;

[0027] Figure 7 This is a flowchart of the testing process;

[0028] Figure 8 These are camera parameters.

[0029] In the picture,

[0030] 1 is the rack,

[0031] 2 is the fixture, 21 is the slide rail, and 22 is the support plate.

[0032] 3 is the bottom detection device, 31 is the second visual detection device, and 32 is the second laser detection device.

[0033] 4 is a lateral detection device, 41 is a first visual detection device, and 42 is a first laser detection device.

[0034] 5 is the Y-axis moving frame, 51 is the Y-axis guide rail, 52 is the Y-axis slider, and 53 is the Y-axis drive device.

[0035] 6 is the X-axis moving frame, 61 is the X-axis guide rail, 62 is the X-axis slider movement, and 63 is the X-axis drive device. Detailed Implementation

[0036] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0037] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0038] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0039] like Figures 1 to 8 As shown, a notebook flatness detection mechanism includes:

[0040] Rack 1;

[0041] Fixture 2, which is located in the middle of the frame 1, is used to place the D side of the notebook product and expose the connecting end of the A side and the D side outside the fixture 2.

[0042] The movable frame includes an X-axis movable frame 6 and a Y-axis movable frame 5 disposed on the X-axis movable frame 6.

[0043] The Y-axis moving frame 5 includes a Y-axis guide rail, a Y-axis slider, and a Y-axis driving device for driving the Y-axis slider to move.

[0044] A lateral detection device 4 is fixedly provided on one side of the Y-axis guide rail, and the detection angle of the lateral detection device 4 is set at an angle.

[0045] The Y-axis slider is equipped with a bottom detection device 3.

[0046] The side detection device 4 is used to acquire the first data of the connecting end, and the bottom detection device 3 is used to acquire the second data of the connecting segment.

[0047] Unlike existing testing equipment, this system employs two sets of testing devices, with the lateral testing device 4 fixedly installed. This allows for the acquisition of initial data from the inclined angle of the connection end.

[0048] Furthermore, the bottom detection device 3, which is movable along the Y-axis, can acquire second data along the length of the notebook.

[0049] That is, the fixed lateral detection device 4 can acquire data from the connection end from a fixed viewing angle, and the horizontal viewing angle can acquire data in the horizontal direction.

[0050] This allows for the acquisition of fitting data between the A and D sides of the laptop, thereby improving detection accuracy and increasing detection efficiency.

[0051] For example Figure 5 The outline is extracted from the point cloud, and then a straight line is fitted by analyzing the outline to obtain the angle between the two straight lines.

[0052] For example Figure 6 The data, from 10 dynamic measurements, showed a maximum flatness repeatability of 0.016 mm and a maximum angle repeatability of 0.325°.

[0053] For example Figure 7 The inspection flowchart shows that visual inspection takes 1 second per piece, XY movement time takes 2 seconds, and manual placement of the notebook takes 5 seconds per piece, for a total of 8 seconds per piece.

[0054] Specifically, the fixture 2 is horizontally positioned.

[0055] Specifically, during the inspection, the junction between surfaces A and D includes both 180-degree and 120-degree angle measurements. The least squares method is used for spatial plane fitting. The distance from each measurement point to the fitted plane is calculated, and the flatness is expressed as: flatness = maximum distance - minimum distance.

[0056] This software is a relatively conventional testing method. Of course, other data can also be tested using this testing agency in conjunction with other testing methods.

[0057] In this embodiment of the present invention, the lateral detection device 4 includes a first visual detection device 41 and a first laser detection device 42;

[0058] The bottom detection device 3 includes a second visual detection device 31 and a second laser detection device 32. It acquires image data through vision and forms the size data of surface A and surface D through reverse fitting using the laser detection device.

[0059] Specifically, the connection between surface A and surface D includes an included angle of 180 degrees and an included angle of 120 degrees.

[0060] In this embodiment of the present invention, the X-axis moving frame 6 includes an X-axis guide rail, an X-axis slider slidably mounted on the X-axis guide rail, and an X-axis lead screw pair for driving the X-axis slider.

[0061] Specifically, the Y-axis drive device is a Y-axis lead screw pair.

[0062] In this embodiment of the utility model, the fixture 2 includes a slide rail 21 and a support plate 22 disposed on the slide rail 21, and the D surface is placed on the support plate 22.

[0063] Specifically, the first visual inspection device 41 and the second visual inspection device 31 are industrial cameras, such as CCD cameras, for example... Figure 8 The parameters.

[0064] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A notebook flatness detection mechanism, characterized in that, include: frame; A fixture is located in the middle of the frame and is used to place the D side of the notebook product and expose the connecting end of the A side and the D side outside the fixture. The movable frame includes an X-axis movable frame and a Y-axis movable frame disposed on the X-axis movable frame. The Y-axis moving frame includes a Y-axis guide rail, a Y-axis slider, and a Y-axis driving device for driving the Y-axis slider to move. A lateral detection device is fixedly installed on one side of the Y-axis guide rail, and the detection angle of the lateral detection device is set at an angle. The Y-axis slider is equipped with a bottom detection device. The side detection device is used to acquire first data of the connecting end, and the bottom detection device is used to acquire second data of the connecting segment.

2. The notebook flatness detection mechanism as described in claim 1, characterized in that: The fixture is horizontally positioned.

3. The notebook flatness detection mechanism as described in claim 1, characterized in that: The lateral detection device includes a first visual detection device and a first laser detection device; The bottom detection device includes a second visual detection device and a second laser detection device.

4. The notebook flatness detection mechanism as described in claim 1, characterized in that: The connection between surfaces A and D includes an angle of 180 degrees and an angle of 120 degrees.

5. The notebook flatness detection mechanism as described in claim 1, characterized in that: The X-axis moving frame includes an X-axis guide rail, an X-axis slider slidably mounted on the X-axis guide rail, and an X-axis lead screw pair for driving the X-axis slider.

6. The notebook flatness detection mechanism as described in claim 1, characterized in that: The Y-axis drive device is a Y-axis lead screw pair.

7. The notebook flatness detection mechanism as described in claim 1, characterized in that: The fixture includes a slide rail and a support plate disposed on the slide rail, with surface D placed on the support plate.

8. The notebook flatness detection mechanism as described in claim 3, characterized in that: The first and second vision inspection devices are industrial cameras.

Images