TFT glass substrate surface detection equipment based on image analysis

Abstract

The utility model discloses TFT glass substrate surface detection equipment based on image analysis, and relates to the technical field of glass substrate processing and manufacturing, the TFT glass substrate surface detection equipment comprises a detection box and a transmission shaft, the left side of the top of the detection box is provided with a display, and the output end of a servo motor I is connected with a driving shaft; the positioning assembly comprises a bearing frame, a second servo motor, a first bidirectional lead screw, a first synchronous belt wheel, a first synchronous belt, a second synchronous belt wheel, a second bidirectional lead screw, a first lead screw nut and a clamping base. According to the TFT glass substrate surface detection equipment based on image analysis, a second servo motor drives a first bidirectional lead screw and a first synchronous belt wheel to rotate, and a first synchronous belt is meshed with the first synchronous belt wheel and a second synchronous belt wheel to transmit power, so that the second bidirectional lead screw rotates; and then a first lead screw nut outside the first bidirectional lead screw and a first lead screw nut outside the second bidirectional lead screw get close to each other or get away from each other, so that the distance between the clamping seats is flexibly adjusted, and universal clamping of glass substrates of different specifications is achieved.

Description

Technical Field

[0001] This utility model relates to the field of glass substrate processing and manufacturing technology, specifically to a TFT glass substrate surface inspection device based on image analysis. Background Technology

[0002] TFT LCD glass is the most important chemical material used by LCD panel manufacturers to produce LCD displays. The LCD panel manufacturing process places high demands on the surface quality of the glass substrate, requiring a comprehensive evaluation of its flatness, smoothness, and any microscopic defects to ensure it meets the required specifications. With the advent of the information age, machines are replacing human eyes in measuring and judging glass substrates.

[0003] In current technology, the glass substrate cannot be flipped when inspecting its surface. Since both sides of the glass substrate need to be inspected, the TFT glass substrate needs to be manually rotated and inspected again, which is a cumbersome operation.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed a TFT glass substrate surface inspection device based on image analysis. Utility Model Content

[0005] The purpose of this invention is to provide a TFT glass substrate surface inspection device based on image analysis to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a TFT glass substrate surface inspection device based on image analysis, comprising an inspection box and a drive shaft. A display is provided on the top left side of the inspection box, and a servo motor is installed on the left side of the inspection box. The output end of the servo motor is connected to a drive shaft, and the other end of the drive shaft is provided with a positioning component. The positioning component includes a support frame, a second servo motor, a first bidirectional lead screw, a first synchronous pulley, a first synchronous belt, a second synchronous pulley, a second bidirectional lead screw nut, and a clamping seat. The second servo motor is installed on the right rear side of the support frame. The output end of the second servo motor is connected to the first bidirectional lead screw, and a first synchronous pulley is sleeved and fixed on the outer right side of the first bidirectional lead screw. The second synchronous pulley is connected to the outer side of the first synchronous pulley via the first synchronous belt, and the second bidirectional lead screw passes through the middle of the second synchronous pulley. A first lead screw nut is connected to the outer side of the first bidirectional lead screw and the second bidirectional lead screw, and a clamping seat is provided between the first lead screw and the first lead screw. The drive shaft is located in the middle right side of the support frame.

[0007] Furthermore, the end of the bidirectional lead screw away from the servo motor is rotatably connected to the support frame, and both ends of the bidirectional lead screw are rotatably connected to the support frame.

[0008] Furthermore, the ratio of the number of lead screw nut one to the number of clamping seats is 2:1, and there are two clamping seats. The bidirectional lead screw two and the clamping seats are perpendicular to each other.

[0009] Furthermore, the drive shaft is located inside the bearing at the opening on the right side of the detection box, and a synchronous pulley is fixedly fitted onto the outside of the drive shaft.

[0010] Furthermore, a fourth synchronous pulley is connected to the outside of the third synchronous pulley via a second synchronous belt, and a ball screw is threaded through the middle of the fourth synchronous pulley.

[0011] Furthermore, the ball screw is externally connected to a screw nut, and the screw nut is externally provided with a mounting base.

[0012] Furthermore, an image processor is mounted on the bottom of the mounting base, and a detection camera is mounted on the rear end of the mounting base.

[0013] Furthermore, the outer diameter of the third synchronous pulley is larger than that of the fourth synchronous pulley, and both ends of the ball screw are rotatably connected to the detection box.

[0014] This invention provides a TFT glass substrate surface inspection device based on image analysis, which has the following advantages:

[0015] 1. This utility model is based on the principle of a large wheel driving a small wheel for speed increase transmission. During the slow rotation of the glass substrate, the detection camera moves with the lead screw nut and takes pictures of the glass substrate. This process is repeated so that the detection camera can take pictures of both sides of the glass substrate. The captured information is then transmitted to the image processor, which analyzes and processes the information to determine whether the glass substrate is qualified.

[0016] 2. This utility model uses a servo motor to drive a bidirectional lead screw and a synchronous pulley to rotate. The synchronous belt and synchronous pulleys 1 and 2 mesh to transmit power, causing the bidirectional lead screw to rotate. This causes the lead screw nut 1 on the outside of the bidirectional lead screw to move closer to or further away from the outside of the bidirectional lead screw 2, thereby flexibly adjusting the distance between the clamping seats and realizing universal clamping of glass substrates of different specifications. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a TFT glass substrate surface inspection device based on image analysis according to this utility model;

[0018] Figure 2 This is a top-view three-dimensional structural diagram of the positioning component of a TFT glass substrate surface inspection device based on image analysis according to this utility model;

[0019] Figure 3 This is a side view of the support frame and clamping seat of a TFT glass substrate surface inspection device based on image analysis according to this utility model.

[0020] In the diagram: 1. Detection box; 2. Display; 3. Servo motor one; 4. Drive shaft; 5. Positioning assembly; 501. Bearing frame; 502. Servo motor two; 503. Bidirectional lead screw one; 504. Synchronous pulley one; 505. Synchronous belt one; 506. Synchronous pulley two; 507. Bidirectional lead screw two; 508. Lead screw nut one; 509. Clamping seat; 6. Drive shaft; 7. Synchronous pulley three; 8. Synchronous belt two; 9. Synchronous pulley four; 10. Ball screw; 11. Lead screw nut two; 12. Mounting seat; 13. Image processor; 14. Detection camera. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figure 1 and Figure 3 As shown, a TFT glass substrate surface inspection device based on image analysis includes an inspection box 1 and a drive shaft 6. A display 2 is provided on the top left side of the inspection box 1, and a servo motor 3 is installed on the left side of the inspection box 1. The output end of the servo motor 3 is connected to a drive shaft 4, and a positioning component 5 is provided on the other end of the drive shaft 4. The drive shaft 6 is located in a bearing at the opening on the right side of the inspection box 1, and a synchronous pulley 7 is fixedly sleeved on the outside of the drive shaft 6. A synchronous pulley 9 is connected to the outside of the synchronous pulley 7 through a synchronous belt 8, and a ball screw 10 is inserted through the middle of the synchronous pulley 9. A screw nut 11 is connected to the outside of the ball screw 10, and a mounting base 12 is provided on the outside of the screw nut 11. An image processor 13 is installed at the bottom of the mounting base 12, and an inspection camera 14 is installed at the rear end of the mounting base 12. The outer diameter of the synchronous pulley 7 is larger than the outer diameter of the synchronous pulley 9, and both ends of the ball screw 10 are rotatably connected to the inspection box 1.

[0023] The specific operation is as follows: based on the principle of speed-up transmission by driving the small wheel with the large wheel, the detection camera 14 moves along with the lead screw nut 508 and takes pictures of the glass substrate during the slow rotation of the glass substrate. This process is repeated so that the detection camera 14 can take pictures of both the front and back of the glass substrate. The captured information is then transmitted to the image processor 13, which analyzes and processes the information to determine whether the glass substrate is qualified.

[0024] like Figure 2As shown, the positioning assembly 5 includes a support frame 501, a second servo motor 502, a first bidirectional lead screw 503, a first synchronous pulley 504, a first synchronous belt 505, a second synchronous pulley 506, a second bidirectional lead screw 507, a lead screw nut 508, and a clamping seat 509. The second servo motor 502 is mounted on the rear right side of the support frame 501. The output end of the second servo motor 502 is connected to the first bidirectional lead screw 503. The first synchronous pulley 504 is fixedly fitted onto the outer right side of the first bidirectional lead screw 503. The second synchronous pulley 506 is connected to the outer side of the first synchronous pulley 504 via the first synchronous belt 505. A two-way lead screw 507 is inserted through the middle of the frame. A lead screw nut 508 is connected to the outside of the two-way lead screw 503 and the two-way lead screw 507. A clamping seat 509 is provided between the lead screw nut 508 and the two-way lead screw 6. The transmission shaft 6 is located in the middle of the right side of the bearing frame 501. The end of the two-way lead screw 503 away from the servo motor 502 is rotatably connected to the bearing frame 501. Both ends of the two-way lead screw 507 are rotatably connected to the bearing frame 501. The ratio of the number of lead screw nuts 508 and clamping seats 509 is 2:1. There are two clamping seats 509. The two-way lead screw 507 and the clamping seats 509 are perpendicular to each other.

[0025] The specific operation is as follows: the servo motor 502 drives the bidirectional lead screw 503 and the synchronous pulley 504 to rotate. The synchronous belt 505 meshes with the synchronous pulleys 504 and 506 to transmit power, causing the bidirectional lead screw 507 to rotate. This causes the lead screw nut 508 on the outside of the bidirectional lead screw 503 and the lead screw nut 508 on the outside of the bidirectional lead screw 507 to move closer or further apart, thereby flexibly adjusting the spacing between the clamping seats 509 and realizing universal clamping of glass substrates of different specifications.

[0026] In summary, when using this image analysis-based TFT glass substrate surface inspection equipment, the glass substrate to be inspected is first placed between the clamping seats 509. The servo motor 502 drives the bidirectional lead screw 503 and the synchronous pulley 504 to rotate. The synchronous belt 505 meshes with the synchronous pulleys 504 and 506 to transmit power, causing the bidirectional lead screw 507 to rotate. This allows the clamping seats 509 to follow the lead screw nut 508 to move horizontally in opposite directions about the outside of the bidirectional lead screw 503 and the bidirectional lead screw 507, thereby clamping the glass substrate and ensuring accurate positioning of the glass substrate.

[0027] During testing, servo motor 13 is started, which drives drive shaft 4, positioning component 5, transmission shaft 6 and synchronous pulley 37 to rotate. Synchronous belt 28 meshes with synchronous pulley 37 and synchronous pulley 49 to make ball screw 10 rotate, so that mounting base 12 follows screw nut 211 to make horizontal displacement about the outside of ball screw 10.

[0028] Based on the principle of speed-up transmission by a large wheel driving a small wheel, the detection camera 14 will shift and take pictures of the glass substrate as it slowly rotates. This process is repeated so that the detection camera 14 can capture pictures of both sides of the glass substrate. The captured information is transmitted to the image processor 13, which analyzes and processes the information to determine whether the glass substrate is qualified. This detection method does not require manual flipping, has a fast detection speed, and provides a more comprehensive detection.

[0029] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A TFT glass substrate surface inspection device based on image analysis, comprising an inspection box (1) and a drive shaft (6), characterized in that, A display (2) is provided on the top left side of the testing box (1), and a servo motor (3) is installed on the left side of the testing box (1). The output end of the servo motor (3) is connected to a drive shaft (4), and a positioning component (5) is provided on the other end of the drive shaft (4). The positioning component (5) includes a bearing frame (501), a servo motor (502), a bidirectional lead screw (503), a synchronous pulley (504), a synchronous belt (505), a synchronous pulley (506), a bidirectional lead screw (507), a lead screw nut (508), and a clamping seat (509). The servo motor (502) is installed on the right rear side of the bearing frame (501). The output end of the servo motor 2 (502) is connected to a bidirectional lead screw 1 (503), and a synchronous pulley 1 (504) is fixedly sleeved on the outer right side of the bidirectional lead screw 1 (503). The outer side of the synchronous pulley 1 (504) is connected to a synchronous pulley 2 (506) via a synchronous belt 1 (505), and a bidirectional lead screw 2 (507) is inserted through the middle of the synchronous pulley 2 (506). A lead screw nut 1 (508) is connected to the outer side of the bidirectional lead screw 1 (503) and the bidirectional lead screw 2 (507), and a clamping seat (509) is provided between the lead screw nut 1 (508). The transmission shaft (6) is located in the middle right side of the bearing frame (501).

2. The TFT glass substrate surface inspection device based on image analysis according to claim 1, characterized in that, The end of the bidirectional lead screw 1 (503) away from the servo motor 2 (502) is rotatably connected to the bearing frame (501), and both ends of the bidirectional lead screw 2 (507) are rotatably connected to the bearing frame (501).

3. The TFT glass substrate surface inspection device based on image analysis according to claim 1, characterized in that, The ratio of the number of lead screw nut one (508) and clamping seat (509) is 2:1, and there are two clamping seats (509). The two-way lead screw two (507) and clamping seat (509) are perpendicular to each other.

4. The TFT glass substrate surface inspection device based on image analysis according to claim 1, characterized in that, The drive shaft (6) is located in the bearing at the opening on the right side of the test box (1), and a synchronous pulley (7) is fixedly fitted on the outside of the drive shaft (6).

5. The TFT glass substrate surface inspection device based on image analysis according to claim 4, characterized in that, The outside of the synchronous pulley three (7) is connected to the synchronous pulley four (9) via the synchronous belt two (8), and a ball screw (10) is inserted through the middle of the synchronous pulley four (9).

6. The TFT glass substrate surface inspection device based on image analysis according to claim 5, characterized in that, The ball screw (10) is externally connected to a screw nut (11), and a mounting base (12) is provided on the outside of the screw nut (11).

7. The TFT glass substrate surface inspection device based on image analysis according to claim 6, characterized in that, An image processor (13) is mounted on the bottom of the mounting base (12), and a detection camera (14) is mounted on the rear end of the mounting base (12).

8. The TFT glass substrate surface inspection device based on image analysis according to claim 5, characterized in that, The outer diameter of the third synchronous pulley (7) is larger than the outer diameter of the fourth synchronous pulley (9), and the two ends of the ball screw (10) are rotatably connected to the detection box (1).

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