Automated detection equipment

Abstract

The present invention relates to an automatic detection device, which includes a support module (1), a detection platform module (2) supported on the support module (1), and a line scan module (3) located on one side of the detection platform module (2). The device further includes: a PCB board positioning module (4) located above the line scan module (3); a detection shaft (5) arranged in parallel with the PCB board positioning module; a silver paste detection module (6) slidably mounted on the detection shaft (5); and a PCB board detection module (7) slidably mounted on the detection shaft (5) in parallel with the silver paste detection module (6). The automatic detection device of the present invention can simultaneously detect the number of conductive particles of a liquid crystal panel, the pressing device and the liquid crystal panel, the silver paste coating condition of the liquid crystal panel, and the pressing state of the PCB board, improving the detection efficiency and accuracy. In addition, the automatic detection device of the present invention can be embedded in the assembly line of liquid crystal devices, retaining the original product production line.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid crystal device detection, and particularly to an automatic detection device. Background Art

[0002] Nowadays, liquid crystal devices are widely used in the field of electronic products. With the increasing production requirements of liquid crystal devices and the increasing progress of panel technology, the requirements for liquid crystal panel defect detection technology are also getting higher and higher, and the number of test items is gradually increasing. For example, the detection of the number of ACF conductive particles and the pressing state of the liquid crystal panel, the detection of the silver paste coating situation on the liquid crystal panel, and the detection of the pressing state of the PCB board. For various test items, in the prior art, it is usually necessary to perform tests manually or with the aid of separate settings, and there are generally problems of low detection efficiency and large detection errors. Summary of the Invention

[0003] The purpose of the present invention is to provide an automatic detection device to solve the problem that multiple test items cannot be carried out simultaneously.

[0004] To achieve the above purpose, the present invention provides an automatic detection device, including a support module, a detection platform module supported on the support module, and a line scan module located on one side of the detection platform module, and further including:

[0005] A PCB board positioning module, located above the line scan module;

[0006] A detection shaft, arranged in parallel with the PCB board positioning module;

[0007] A silver paste detection module, slidably installed on the detection shaft;

[0008] A PCB board detection module, slidably installed on the detection shaft side by side with the silver paste detection module.

[0009] According to one aspect of the present invention, the PCB board positioning module includes: a fixing plate, a PCB baffle fixedly connected to the fixing plate, and a connecting plate fixedly connected to the fixing plate and arranged in parallel with the PCB board;

[0010] The lower side of the PCB baffle is a plane, the connecting plate is located below the PCB baffle, and a PCB board pressing cylinder is arranged on the connecting plate, and the stroke of the PCB board pressing cylinder is along the vertical direction.

[0011] According to one aspect of the present invention, the PCB board detection module includes a mounting plate, a first detection camera and a second detection camera fixedly installed on the mounting plate, a first driving component for driving the mounting plate to move up and down in the vertical direction, and a second driving component for driving the mounting plate to move back and forth in the horizontal direction;

[0012] The first detection camera is a chromatic aberration detection camera, and the second detection camera is an offset detection camera.

[0013] According to one aspect of the present invention, the silver paste detection module includes an area array camera, a third driving component for driving the area array camera to move up and down in the vertical direction, and a fourth driving component for driving the area array camera to move back and forth in the horizontal direction;

[0014] It further includes a laser altimeter for measuring the height from the silver paste detection module to the detection platform module and the PCB board positioning module.

[0015] According to one aspect of the present invention, the detection platform module includes:

[0016] A gas supply device;

[0017] A rotary driving component supported on the gas supply device;

[0018] An adsorption workbench provided with an air path communicated with the gas supply device;

[0019] The rotary driving component drives the adsorption workbench to rotate in the horizontal plane.

[0020] According to one aspect of the present invention, the detection platform module further includes a panel preliminary positioning component, and the panel preliminary positioning component includes a calibration driving component and a positioning plate fixedly connected to the calibration driving component.

[0021] According to one aspect of the present invention, the line scan module includes a line scan axis, a detection camera slidably mounted on the line scan axis, and a power source for driving the detection camera to move;

[0022] The detection camera is used to detect the number and particle diameter of conductive particles on the liquid crystal panel on the detection platform module.

[0023] According to one aspect of the present invention, the automatic detection device is an embedded device.

[0024] According to one aspect of the present invention, the support module includes a frame and a support plate provided on the frame,

[0025] Both the line scan module and the detection platform module are provided on the support plate.

[0026] According to one aspect of the present invention, the support plate is a marble plate, and a shock absorption device is provided between the frame and the support plate.

[0027] According to an aspect of the present invention, the automated detection device of the present invention has functions of detecting ACF conductive particles of a liquid crystal panel, detecting the silver paste coating condition of the liquid crystal panel, and detecting the pressing state of a PCB board. Compared with the prior art in which each test item is detected singly manually or with the aid of equipment, the automated device of the present invention can effectively improve the detection efficiency and detection accuracy.

[0028] According to an aspect of the present invention, the automated detection equipment of the present invention is an embedded device, that is, the automated detection equipment of the present invention can be embedded into a liquid crystal device assembly line. This makes the automated detection equipment of the present invention highly adaptable and capable of working without affecting the liquid crystal device production line, which can further improve the overall production efficiency and reduce costs.

[0029] According to an aspect of the present invention, a plurality of PCB board top pressing cylinders are provided on the lower side of the PCB baffle of the present invention. The lower side surface of the PCB baffle is a flat surface. In this way, the PCB board can be placed between the lower side of the PCB baffle and the PCB board top pressing cylinders by a loading and unloading manipulator, and then the PCB board can be pressed against the lower side surface of the PCB baffle by the PCB board top pressing cylinders. Since most PCB boards are in a warped state, the PCB board positioning module of the invention can press the warped PCB board against the lower flat surface of the PCB baffle, avoiding the problem of poor accuracy of the PCB board detection result caused by the warping of the PCB board itself.

[0030] According to an aspect of the present invention, the support plate is made of a marble plate, and other components of the present invention are arranged on or above the support plate made of marble plate material. This can effectively reduce the center of gravity of the detection equipment of the present invention and is beneficial to improving the stability of the detection equipment of the present invention. In addition, there is a shock absorption device between the frame and the support plate, which can ensure that the automated detection equipment of the present invention has a certain anti-interference ability, thus being beneficial to ensuring the working stability of the automated detection equipment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematically showing the internal structure diagram of the automated detection equipment according to the present invention;

[0032] Figure 2 Schematically showing the partial structure diagram of the automated detection equipment according to the present invention;

[0033] Figure 3 Schematically showing the three-dimensional external structure diagram of the automated detection equipment according to the present invention;

[0034] Figure 4 Schematically showing the illustration of the automated detection equipment according to the present invention being embedded into the liquid crystal device automated production line Figure 1 ;

[0035] Figure 5 Schematically showing the automation detection device according to the present invention being embedded in the liquid crystal device automation production line Figure 2 ;

[0036] Figure 6 Schematic diagram showing the structure of the PCB board positioning module according to the present invention;

[0037] Figure 7 Schematic diagram showing the structure of the PCB board detection module according to the present invention;

[0038] Figure 8 Schematic diagram showing the structure of the silver paste detection module according to the present invention;

[0039] Figure 9 Schematic diagram showing the structure of the detection platform module according to the present invention;

[0040] Figure 10 Schematic diagram showing the structure of the line scan module according to the present invention.

[0041] The meanings represented by the reference numerals in the drawings are as follows:

[0042] 1. Support module. 2. Detection platform module. 3. Line scan module. 4. PCB board positioning module. 5. Detection shaft. 6. Silver paste detection module. 7. PCB board detection module. 41. Fixed plate. 42. PCB baffle. 43. Connecting plate. 44. PCB board pressing cylinder. 71. Mounting plate. 72. First detection camera. 73. Second detection camera. 74. First driving component. 75. Second driving component. 61. Area array camera. 62. Third driving component. 63. Fourth driving component. 21. Rotating driving component. 22. Adsorption workbench. 23. Panel preliminary positioning component. 231. Calibration driving component. 232. Positioning plate. 31. Line scan shaft. 32. Detection camera. 33. Power source. 11. Frame. 12. Support plate. Detailed implementation manners

[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0044] When describing the embodiments of the present invention, the orientation or positional relationship expressed by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" is based on the orientation or positional relationship shown in the relevant drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present invention.

[0045] The present invention will be described in detail below with reference to the drawings and specific embodiments. The embodiments cannot be described in detail one by one here, but the embodiments of the present invention are not limited to the following embodiments.

[0046] Combined Figure 1 、 Figure 2 and Figure 3 As shown in, according to an embodiment of the present invention, the automated detection device of the present invention includes a support module 1, a detection platform module 2, a line scan module 3, a PCB board positioning module 4, a detection shaft 5, a silver paste detection module 6, and a PCB board detection module 7.

[0047] The support module 1 of the present invention is arranged at the bottommost to play a supporting role. In this embodiment, the support module 1 includes a frame 11 and a support plate 12, and the support plate 12 is arranged on the frame 11. In this embodiment, the support plate 12 is made of a marble plate, and other components of the present invention are arranged on or above the support plate 12 made of marble material. Since the support plate 12 is arranged on the frame 11, the center of gravity of the detection device of the present invention can be effectively reduced, which is beneficial to improving the stability of the detection device of the present invention.

[0048] In addition, in this embodiment, there is also a shock absorption device between the frame 11 and the support plate 12, so that the automated detection device of the present invention can have a certain anti-interference ability, which is beneficial to ensuring the working stability of the automated detection device of the present invention.

[0049] In the present invention, the detection platform module 2 and the line scan module 3 are fixedly supported on the support module 1. Specifically, the detection platform module 2 and the line scan module 3 are fixed on the support plate 12. The detection platform module 2 is used to support and position the liquid crystal panel to be detected. The line scan module 3 is used to detect the number of ACF conductive particles, the diameter of the conductive particles and the pressing state of the liquid crystal panel. According to an embodiment of the present invention, the PCB board positioning module 4 of the present invention is above the line scan module 3 and is used to clamp and position the PCB board. The detection shaft 5 is arranged parallel to the PCB board positioning module 4 and is located on one side of the PCB board positioning module 4 and is arranged higher than the PCB board positioning module 4. The silver paste detection module 6 is slidably mounted on the detection shaft 5 and is used to detect the silver paste coating condition of the liquid crystal panel. The PCB board detection module is slidably mounted on the detection shaft 5 in parallel with the silver paste detection module 6 and is used to detect the pressing state of the PCB board.

[0050] The automated detection device of the present invention has the functions of detecting the ACF conductive particles of the liquid crystal panel, detecting the silver paste coating condition of the liquid crystal panel and detecting the pressing state of the PCB board at the same time. Compared with the prior art in which each test item is detected singly by manual or with the help of equipment, the automated device of the present invention can effectively improve the detection efficiency and detection accuracy.

[0051] Combined with Figure 4 and Figure 5 shown, the automated detection equipment of the present invention is an embedded device, that is, the automated detection equipment of the present invention can be embedded into the liquid crystal device production line. Figure 4 The dashed part in

[0052] is a part of the automated detection equipment of the present invention embedded into the liquid crystal device production line. According to the concept of the present invention, an embedding structure adapted to different liquid crystal devices on the production line can be provided on the automated detection equipment of the present invention according to actual needs. In this way, the automated detection equipment of the present invention has strong adaptability, can work without affecting the liquid crystal device production line, can further improve the overall production efficiency and reduce the cost.

[0052] The following will describe each part of the present invention in detail. As Figure 6 shown, according to an embodiment of the present invention, the PCB board positioning module 4 of the present invention includes a fixing plate 41, a PCB baffle 42 and a connecting plate 43. Combined with Figure 2 and Figure 6As shown, in this embodiment, the PCB board positioning module 4 is located above the line scan module 3. Specifically, the line scan module 3 is fixedly supported on the support module 1. Two support frames are also fixedly installed on the support module 1. The two support frames are arranged on both sides of the line scan module 3 and extend in the vertical direction. A second support frame is fixedly supported on the two support frames. The second support frame is horizontally arranged. The fixing plate 41 of the PCB board positioning module 4 is fixedly installed on the second support frame by means of bolts or the like.

[0053] In the present invention, the fixing plate 41 is a flat plate, and its installation state is arranged in the vertical direction. The PCB baffle 42 and the connecting plate 43 are fixedly connected to the same side of the fixing plate 41. As Figure 6 shown, in this embodiment, both the PCB baffle 42 and the connecting plate 43 are fixedly connected to the right side of the fixing plate 41. The connecting plate 43 and the PCB baffle 42 are arranged parallel to each other. The connecting plate 43 is located in the direction of the PCB baffle 42. A PCB board pressing cylinder 44 is provided on the connecting plate 43. In this embodiment, a plurality of PCB board pressing cylinders 44 are provided. The plurality of PCB pressing cylinders 44 are arranged at equal intervals along the length direction of the connecting plate 43. The stroke of the PCB board pressing cylinder 44 is in the vertical direction. That is, a plurality of PCB board pressing cylinders 44 are provided under the lower side of the PCB baffle 42 in the present invention. The lower side surface of the PCB baffle 42 is a plane. In this way, the PCB board can be placed between the lower side of the PCB baffle and the PCB board pressing cylinder 44 by the loading and unloading manipulator, and then the PCB board can be pressed against the lower side surface of the PCB baffle 42 by the PCB board pressing cylinder 44. Since most of the PCB boards are in a warped state, the PCB board positioning module 4 of the invention can press the warped PCB board against the lower side plane of the PCB baffle 42, avoiding the problem of poor accuracy of the PCB board detection result caused by the warping of the PCB board itself.

[0054] Combined with Figure 2 、 Figure 6 and Figure 7 shown, the PCB board detection module 7 of the present invention includes a mounting plate 71, a first detection camera 72 and a second detection camera 73 fixedly installed on the mounting plate 71, a first driving component 74 for driving the mounting plate 71 to move up and down in the vertical direction, and a second driving component 75 for driving the mounting plate 71 to move back and forth in the horizontal direction. According to an embodiment of the present invention, the second driving component 73 is slidably supported on the detection shaft 5 and can move along the direction of the detection shaft 5. The PCB board detection module 7 of the present invention can adjust the positions of the first detection camera 72 and the second detection camera 73 through the first driving component 74 and the second driving component 75, so as to detect the pressing state of the PCB.

[0055] Specifically, in this embodiment, the first detection camera 72 is a halation detection camera, which is used to take halation pictures of the indentation on the PCB board, and then process and analyze the halation pictures to judge the pressing condition of the PCB board in the vertical direction. The second detection camera 73 is an offset detection camera, which is used to detect the offset pictures of the indentation on the PCB board, and then process and analyze the offset pictures to judge the pressing condition of the PCB board in the horizontal direction.

[0056] Combined with Figure 2 and Figure 8 As shown, the silver paste detection module 6 of the present invention includes an area array camera 61, a third driving component 62 and a fourth driving component 63. Among them, the area array camera 61 is used to take pictures of the silver paste coating on the liquid crystal panel. The third driving component 62 is used to drive the area array camera 61 to move up and down in the vertical direction, and the fourth driving component 63 is used to drive the area array camera 61 to move back and forth in the horizontal direction.

[0057] The silver paste detection module 6 of the present invention further includes a laser altimeter 64, which is used to measure the height from the silver paste detection module 6 to the detection platform module 2 and the PCB board positioning module 4. Since the liquid crystal panel is supported and positioned on the detection platform module 2, and the PCB board is positioned on the PCB board positioning module 4, the laser altimeter 64 is used to measure the height of the panel and the PCB board. After measuring the height of the liquid crystal panel, it is fed back to the third driving component 62 and the fourth driving component 63 to adjust the position of the area array camera 61 to make the captured image as clear as possible, which is beneficial to improving the accuracy of the detection result.

[0058] After the laser altimeter 6 measures the height of the PCB board, it feeds back the measurement result to the first driving component 72 in the PCB board detection module 7, so that the first driving component 74 drives the first detection camera 72 and the second detection camera 73 to move in the vertical direction to ensure that the height difference between the first detection camera 72 and the second detection camera 73 and the PCB board is always within the depth of field range. According to an embodiment of the present invention, the depth of field is controlled within 37μm.

[0059] It should be noted that the selection of the first driving component 74 and the second driving component 75 in the above PCB board detection module 7 and the third driving component 62 and the fourth detection component 63 in the silver paste detection module 6 is not limited. For example, the selection of servo motor drive or precision electric slide table and other methods are all acceptable.

[0060] Combined with Figure 2 and Figure 9As shown in the figure, the detection platform module 2 of the present invention includes a gas supply device, a rotation drive assembly 21, and an adsorption workbench 22. In this embodiment, the gas supply device is arranged on the support plate 12, and the rotation assembly 21 is supported on the gas supply device. In this embodiment, the rotation assembly 21 can adopt a rotation drive motor. The adsorption workbench 22 is supported on the rotation assembly 21, and the drive assembly 21 can drive the adsorption workbench 22 to rotate in the horizontal plane. A plurality of gas paths communicating with the gas supply device are arranged inside the adsorption workbench 22. Such an arrangement can generate an adsorption force on the upper surface of the adsorption workbench 22 to fix the liquid crystal panel on the adsorption workbench 22.

[0061] In the present invention, the detection platform module 2 further includes a panel preliminary positioning assembly 23, and the panel preliminary positioning assembly 23 includes a calibration drive assembly 231 and a positioning plate 232 fixedly connected to the calibration drive assembly 231. The panel preliminary positioning assembly 23 is used to calibrate the initial position of the liquid crystal panel.

[0062] In addition, an adjusting screw is provided at the connection between the rotation assembly 21 and the adsorption platform 22 of the present invention for leveling the adsorption platform 22, which is beneficial to ensuring the detection accuracy.

[0063] Combined Figure 2 and Figure 10 As shown in the figure, the line scan module 3 of the present invention includes a line scan shaft 31, a detection camera 32 slidably mounted on the line scan shaft 31, and a power source 33 for driving the detection camera 32 to move. The detection camera 32 is first used for the rough positioning detection of the liquid crystal panel on the detection platform module 2, and then used for detecting the number and diameter of conductive particles of the liquid crystal panel on the detection platform module 2. Similarly, the power source 33 of the line scan module 3 can adopt any power generating device.

[0064] Combined Figures 1 - 10 As shown in the figure, the working process of the automatic detection device of the present invention is as follows:

[0065] First, the automatic detection device of the present invention is embedded in the liquid crystal device production line. The liquid crystal panel is fed by the robot of the liquid crystal device production line and placed at the designated position of the adsorption plate 22 for positioning and clamping according to the preliminary calibration of the panel preliminary positioning assembly 23. The robot feeds the PCB board, and the PCB board positioning module 4 presses and fixes the PCB board.

[0066] After that, the line scan module 3 works. The detection camera 32 moves along the line scan axis 31 towards the downstream side to perform rough positioning detection of the liquid crystal panel, and outputs the alignment compensation coordinates and angles. At the same time, the silver paste detection module 6 and the PCB board detection module move along the detection axis 5 towards the downstream side to perform laser height measurement and PCB board deviation detection. Then, the detection platform module 2 adjusts the Y-axis and θ-axis of the adsorption platform 22 according to the compensation value output by the rough positioning. Then, the detection camera 32 moves back along the line scan axis 31 towards the upstream side of the device to perform panel COG and FOG particle detection. At the same time, the silver paste detection module 6 and the PCB board detection module move back towards the upstream side to perform silver paste and PCB indentation halo detection. Finally, the detection results are output, and the downstream manipulator of the liquid crystal device production line performs blanking and sorting.

[0067] The above is only one solution of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automated detection device, comprising a support module (1), a detection platform module (2) supported on the support module (1), and a line scan module (3) located on one side of the detection platform module (2). Characterized in that, It further comprises: A PCB board positioning module (4), located above the line scan module (3); A detection shaft (5), arranged in parallel with the PCB board positioning module; A silver paste detection module (6), slidably mounted on the detection shaft (5); A PCB board detection module (7), slidably mounted on the detection shaft (5) side by side with the silver paste detection module (6); The PCB board positioning module (4) comprises: a fixing plate (41), a PCB baffle (42) fixedly connected to the fixing plate (41), and a connecting plate (43) fixedly connected to the fixing plate (41) and arranged in parallel with the PCB baffle (42); The lower side of the PCB baffle (42) is a plane, the connecting plate (43) is located below the PCB baffle (42), and a PCB board pressing cylinder (44) is provided on the connecting plate (43), and the stroke of the PCB board pressing cylinder (44) is in the vertical direction; The PCB board detection module (7) comprises a first detection camera (72) and a second detection camera (73), the first detection camera (72) is a halo detection camera, and the second detection camera (73) is an offset detection camera.

2. The automated detection device according to claim 1, Characterized in that, The PCB board detection module (7) further comprises a mounting plate (71), a first driving component (74) for driving the mounting plate (71) to move up and down in the vertical direction, and a second driving component (75) for driving the mounting plate (71) to move back and forth in the horizontal direction; the first detection camera (72) and the second detection camera (73) are fixedly mounted on the mounting plate (71).

3. The automated detection device according to claim 1, Characterized in that, The silver paste detection module (6) comprises an area array camera (61), a third driving component (62) for driving the area array camera (61) to move up and down in the vertical direction, and a fourth driving component (63) for driving the area array camera (61) to move back and forth in the horizontal direction; It further comprises a laser altimeter (64) for measuring the height of the silver paste detection module (6) from the detection platform module (2) and the PCB board positioning module (4).

4. The automated detection device according to claim 1, Characterized in that, The detection platform module (2) comprises: A gas supply device; A rotation driving component (21), supported on the gas supply device; An adsorption workbench (22), provided with an air path communicated with the gas supply device; The rotation driving component (21) can drive the adsorption workbench (22) to rotate in the horizontal plane.

5. The automated detection device according to claim 4, Characterized in that, The detection platform module (2) further includes a panel preliminary positioning component (23), and the panel preliminary positioning component (23) includes a calibration driving component (231) and a positioning plate (232) fixedly connected to the calibration driving component (231).

6. The automated detection device according to claim 1, wherein, the line scan module (3) includes a line scan shaft (31), a detection camera (32) slidably mounted on the line scan shaft (31), and a power source (33) for driving the movement of the detection camera (32); the detection camera (32) is used to detect the number and particle diameter of conductive particles on the liquid crystal panel of the detection platform module (2).

7. The automated detection device according to claim 1, wherein, the automated detection device is an embedded device.

8. The automated detection device according to claim 1, wherein, the support module (1) includes a frame (11) and a support plate (12) provided on the frame (11), both the detection platform module (2) and the line scan module (3) are provided on the support plate (12).

9. The automated detection device according to claim 8, wherein, the support plate (12) is a marble plate, and a shock absorption device is provided between the frame (11) and the support plate (12).

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