Full-automatic co-g binding machine automatic feeding device

The electronic cam control system of the automatic feeding device of the fully automatic COG bonding machine realizes continuous, efficient and high-precision automatic alignment of LCD glass and IC chip, which solves the problems of poor operation continuity and low production efficiency in the existing technology, and reduces equipment complexity and cost.

CN121091552BActive Publication Date: 2026-03-03SHANXI ZHIHUI CANGQIONG TECH CO LTD
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Patent Information

Application Number
CN202511621256.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-11-07
Publication Date
2026-03-03
Estimated Expiration
2045-11-07

AI Technical Summary

Technical Problem

The existing COG binding machine feeding device is semi-automatic, resulting in poor operation continuity, low production efficiency, and high equipment cost.

Method used

The fully automatic COG bonding machine adopts an automatic feeding device, which generates a cam control table through an electronic cam control system. Combined with the spindle, distance sensor and clamping movement mechanism, it realizes continuous, efficient and high-precision automatic alignment of LCD glass and IC chip.

Benefits of technology

It achieves continuous, efficient, and high-precision automated positioning of LCD glass and IC chips, is applicable to LCD glass and IC chips of different sizes and shapes, has strong versatility, and reduces equipment complexity and cost.

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Abstract

The present application relates to liquid crystal panel production technical field, especially to a kind of automatic feeding device of full-automatic COG binding machine, comprising: main shaft, drive LCD glass conveying belt continuous conveying LCD glass along first horizontal direction;Distance sensor, for real-time monitoring and the distance change value between LCD glass edge portion;Controller, including electronic cam control system for receiving the information sent by main shaft and distance sensor and generating cam control table;First slave shaft, according to cam control table drive translation frame moves along second horizontal direction;Second slave shaft, according to cam control table drive rotating frame horizontal rotation on translation frame;IC chip clamp, for positioning the IC chip in IC chip magazine and placing on LCD glass.The present application realizes the continuous, efficient, high-precision automatic positioning of LCD glass and IC chip by the cooperation of each component, can be applicable to the binding operation of LCD glass and IC chip of different sizes and shapes, and has strong versatility, can make the equipment performance more reliable, and can save cost.
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Description

Technical Field

[0001] This invention relates to the field of liquid crystal panel manufacturing technology, and in particular to an automatic feeding device for a fully automatic COG bonding machine. Background Technology

[0002] In the production process of LCD panels, COG (Chip On Glass) bonding equipment is a crucial step in directly bonding IC chips to the LCD glass. The structure and principle of this bonding equipment can be found in Chinese Utility Model Patent Publication No. CN203495962U, entitled "A Gripping Robot for a COG Bonding Machine and a COG Bonding Machine." The feeding device is a vital component ensuring the accuracy and efficiency of the COG bonding operation. Existing COG bonding machines mostly use semi-automatic feeding devices. After initially positioning the LCD glass and IC chip, they use a camera for position comparison, and after calculation by a controller, an intelligent robotic arm performs alignment adjustments. While existing COG bonding machines save manpower and reduce the risk of product scratches or breakage compared to traditional manual feeding methods, they suffer from poor operational continuity, low production efficiency, and high equipment costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an automatic feeding device for a fully automatic COG binding machine that is continuous in operation and highly efficient.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: an automatic feeding device for a fully automatic COG binding machine, comprising:

[0005] The main shaft drives the LCD glass conveyor belt to continuously transport LCD glass along the first horizontal direction;

[0006] A pair of distance sensors are symmetrically arranged on both sides of the LCD glass conveyor belt along a second horizontal direction perpendicular to the first horizontal direction. The pair of distance sensors are used to monitor the change in distance between the LCD glass and the opposite sides of the LCD glass.

[0007] The controller includes an electronic cam control system for receiving information from the spindle and distance sensors and generating a cam control table;

[0008] The first slave axis drives the translation frame to move along the second horizontal direction according to the cam control table;

[0009] The second driven axis, according to the cam control table, drives the rotating frame to rotate horizontally on the translation frame;

[0010] An IC chip fixture, mounted on a rotating frame and connected to a controller, is used to pick up IC chips from the IC chip hopper one by one and position them onto the LCD glass.

[0011] Optionally, it also includes a frame, a spindle including a first motor, the first motor and the LCD glass conveyor belt are both mounted on the frame, the first motor is connected to the LCD glass conveyor belt, and the electronic cam control system receives information sent by the first motor and the distance sensor and generates a cam control table.

[0012] Optionally, the first slave shaft includes a horizontal control motor, which is mounted on the frame and controls the translation frame to slide along a second horizontal direction on the frame via a lead screw assembly.

[0013] Optionally, the second driven shaft includes an angle control motor, which is mounted on the translation frame and controls the rotating frame to rotate horizontally on the translation frame via a reduction mechanism.

[0014] Optionally, an LCD glass sensing module is provided on the frame. The LCD glass sensing module, distance sensor and translation frame are arranged sequentially along the first horizontal direction. The LCD glass sensing module is positioned facing the LCD glass conveyor belt and is connected to the controller.

[0015] Optionally, the frame is equipped with a three-way adjustment seat, the three-way adjustment seat is equipped with a leveling platform, and the distance sensor is set on the leveling platform.

[0016] Optionally, the IC chip fixture includes an electric lifting frame and a vacuum suction cup. The rotating frame is mounted on the translation frame via the electric lifting frame, and the vacuum suction cup is connected to a vacuum generator via a vacuum pipe. Both the electric lifting frame and the vacuum generator are connected to a controller.

[0017] Optionally, two or more translation frames are spaced apart along the conveying direction of the LCD glass conveyor belt, each translation frame is driven by a first slave shaft, and the main shaft is coupled to two or more first slave shafts.

[0018] Optionally, it also includes a robotic arm loading platform, which is connected to the controller and is used to support and move the IC chip box.

[0019] The beneficial effects of the present invention are as follows: The core concept of a fully automatic COG bonding machine automatic feeding device is to generate a cam control table through an electronic cam control system, and couple the main shaft with the first slave shaft and the second slave shaft respectively, thereby realizing the continuous feeding of LCD glass and the precise loading of IC chips at the same time, and realizing the automatic alignment of LCD glass and IC chips. The working principle of the device is as follows: First, the LCD glass is continuously conveyed by the LCD glass conveyor belt controlled by the main shaft at a certain speed. Since the LCD glass is not arranged in a regular manner on the LCD glass conveyor belt, there will be some deviation in the placement orientation during the feeding process. Therefore, while it is being continuously conveyed, the distance sensor detects the change in distance to the side of each passing LCD glass. Based on the distance change value, the placement position and placement angle deviation of the LCD glass relative to the conveyor axis can be obtained. The electronic cam control system generates a cam control table to control the fixture based on the parameters of the LCD glass conveyor belt feeding speed controlled by the main shaft and the parameters detected by the distance sensor. The IC chip fixture first picks up an IC chip from the IC chip box. According to the offset coordinate of the placement position, the first slave shaft drives the translation frame to move the IC chip fixture to the positioning point. At the same time, according to the offset of the placement angle, the second slave shaft drives the rotation frame to rotate the IC chip fixture by a certain angle. The IC chip fixture positions the IC chip on the corresponding LCD glass for positioning. Compared to the traditional method of using a vision system to capture and calculate the relative positions of the LCD glass and IC chip markers, and then moving and positioning them using a transfer assembly while stationary, this invention is based on an electronic cam control system. This system couples the LCD glass conveyor belt, distance sensor, clamping mechanism, and IC chip clamp, enabling continuous, efficient, and high-precision automated positioning of the LCD glass and IC chip through the coordinated operation of these components. It is applicable to the bonding operations of LCD glass and IC chips of different sizes and shapes, has strong versatility, eliminates the need to mark positioning points on the LCD glass and IC chip, and also eliminates the need for pre-positioning and positioning mechanisms for the LCD glass and IC chip. It also eliminates the need to stop the machine to collect the relative positions of the two or to calibrate the position coordinates. Furthermore, it avoids designing a complex clamping mechanism, which makes the equipment more reliable and saves costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the automatic feeding device for a fully automatic COG binding machine.

[0021] Figure 2 for Figure 1 Enlarged view at point A;

[0022] Figure 3 for Figure 1 Enlarged view at point B;

[0023] Figure 4Another structural schematic diagram of the automatic feeding device for a fully automatic COG binding machine;

[0024] Label Explanation:

[0025] 1. Main spindle; 11. First motor; 2. LCD glass conveyor belt; 3. Distance sensor; 4. First slave shaft; 41. Horizontal control motor; 42. Lead screw assembly; 5. Translation frame; 6. Second slave shaft; 61. Angle control motor; 7. Rotation frame; 8. IC chip fixture; 81. Electric lifting frame; 82. Vacuum suction cup; 9. IC chip box; 10. Frame; 101. LCD glass sensing module; 102. Three-way adjustment seat; 103. Leveling platform; 104. Robotic arm loading platform. Detailed Implementation

[0026] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0027] The core concept of the fully automatic COG bonding machine automatic feeding device of the present invention is: by generating a cam control table through an electronic cam control system, the main shaft is coupled with the first slave shaft and the second slave shaft respectively, thereby realizing the continuous feeding of LCD glass and the precise loading of IC chips at the same time, and realizing the automatic alignment of LCD glass and IC chips.

[0028] Please refer to Figures 1 to 4 The present invention provides an automatic feeding device for a fully automatic COG binding machine, comprising:

[0029] Main shaft 1 drives LCD glass conveyor belt 2 to continuously convey LCD glass along the first horizontal direction;

[0030] Distance sensors 3 are symmetrically arranged on both sides of the LCD glass conveyor belt 2 along the second horizontal direction perpendicular to the first horizontal direction. The pair of distance sensors 3 are used to monitor the distance change values ​​between the LCD glass and the opposite sides of the LCD glass.

[0031] The controller includes an electronic cam control system for receiving information from the spindle 1 and the distance sensor 3 and generating a cam control table;

[0032] The first drive shaft 4 drives the translation frame 5 to move along the second horizontal direction according to the cam control table;

[0033] The second drive shaft 6 drives the rotating frame 7 to rotate horizontally on the translation frame 5 according to the cam control table;

[0034] IC chip fixture 8 is mounted on rotating frame 7 and connected to controller. It is used to pick up IC chips from IC chip box 9 one by one and position them on LCD glass.

[0035] The working principle of this invention is as follows: First, the LCD glass conveyor belt 2 is continuously conveyed by the main shaft 1 at a certain speed. Since the LCD glass is not arranged in a regular manner on the LCD glass conveyor belt 2, there will be some deviation in the placement position during the feeding process. Therefore, while it is being continuously conveyed, the distance sensor 3 detects the change in distance to the side of each passed LCD glass. Based on the distance change value, the deviation of the placement position and placement angle of the LCD glass relative to the conveying axis can be obtained. The electronic cam control system generates a cam control table to control the fixture based on the parameters of the feeding speed of the LCD glass conveyor belt 2 controlled by the main shaft 1 and the parameters detected by the distance sensor 3. The IC chip fixture 8 first picks up an IC chip from the IC chip box 9. According to the offset coordinate of the placement position, the first slave shaft 4 drives the translation frame 5 to move the IC chip fixture 8 to the positioning point. At the same time, according to the offset of the placement angle, the second slave shaft 6 drives the rotation frame 7 to rotate the IC chip fixture 8 by a certain angle. The IC chip fixture 8 positions the IC chip on the corresponding LCD glass for positioning.

[0036] The beneficial effects are as follows: Compared with the traditional method of using a vision system to capture and calculate the relative positional relationship between the LCD glass and the IC chip's Mark points, and then moving and positioning them in a static state using a material transfer component, this invention generates a cam control table based on an electronic cam control system. Based on the conveying speed parameters of the main shaft and the position and angle deviation values ​​detected by the distance sensor, it converts them into the translation amount of the first slave axis and the rotation angle parameters of the second slave axis through a preset algorithm. This couples the LCD glass conveyor belt 2, the distance sensor 3, the clamping moving mechanism, and the IC chip clamp 8. Through the coordinated cooperation of each component, continuous, efficient, and high-precision automated positioning of the LCD glass and IC chip is achieved. It is applicable to the bonding operations of LCD glass and IC chips of different sizes and shapes, has strong versatility, eliminates the need to mark positioning points on the LCD glass and IC chip, and also eliminates the need for pre-positioning and positioning mechanisms for the LCD glass and IC chip. It also eliminates the need to stop the machine to collect the relative positional relationship or calibrate the position coordinates. In addition, it eliminates the need to design a complex clamping moving mechanism, which makes the equipment more reliable and saves costs.

[0037] A pair of distance sensors 3 are set up to detect the distance changes of the two opposite sides of the LCD glass from the left and right sides respectively. The deviation of the two sides relative to the conveying axis in terms of placement position and angle can be comprehensively considered, so as to accurately determine the center position of the LCD glass and the deviation of the overall placement position and angle of the LCD glass relative to the conveying axis, thereby improving the bonding accuracy.

[0038] Preferably, it also includes a frame 10, the main shaft 1 includes a first motor 11, the first motor 11 and the LCD glass conveyor belt 2 are both mounted on the frame 10, the first motor 11 is connected to the LCD glass conveyor belt 2, and the electronic cam control system receives the information sent by the first motor 11 and the distance sensor 3 and generates a cam control table.

[0039] The beneficial effects described above are: the first motor 11 includes a module connected to the electronic cam control system, which sends the feeding speed of the LCD glass conveyor belt 2 to the electronic cam control system. The electronic cam control system controls the IC chip fixture 8 by combining the deviation values ​​of the overall placement position and placement angle of the LCD glass relative to the conveyor axis.

[0040] Preferably, the first slave shaft 4 includes a horizontal control motor 41, which is mounted on the frame 10. The horizontal control motor 41 controls the translation frame 5 to slide along the second horizontal direction on the frame 10 via a lead screw assembly 42.

[0041] The beneficial effects described above are: the horizontal control motor 41 includes a functional module connected to the electronic cam control system, and the horizontal control motor 41 drives the translation frame 5 to translate horizontally according to the cam control table, thereby matching the deviation of the LCD glass from the placement position of the conveyor axis.

[0042] Preferably, the second driven shaft 6 includes an angle control motor 61, which is mounted on the translation frame 5. The angle control motor 61 controls the rotating frame 7 to rotate horizontally on the translation frame 5 through a reduction mechanism.

[0043] The beneficial effects described above are as follows: the angle control motor 61 includes a functional module connected to the electronic cam control system. The angle control motor 61 drives the rotating frame 7 to rotate horizontally according to the cam control table, thereby matching the deviation of the LCD glass's placement angle relative to the conveyor axis. The reduction mechanism is used to reduce the motor's output speed and increase torque, achieving precise angle control of the rotating frame.

[0044] Preferably, the frame 10 is provided with an LCD glass sensing module 101, the LCD glass sensing module 101, the distance sensor 3 and the translation frame 5 are arranged sequentially along the first horizontal direction, the LCD glass sensing module 101 is positioned facing the LCD glass conveyor belt 2, and the LCD glass sensing module 101 is connected to the controller.

[0045] The beneficial effects described above are: the LCD glass sensing module 101 is used to sense the LCD glass conveyed by the LCD glass conveyor belt 2, and the controller adjusts efficiency, power, etc. according to the instructions sent by the LCD glass sensing module 101. Multiple LCD glass sensing modules 101 are respectively set at the front and rear ends of the LCD glass conveyor belt 2, and the coupling or decoupling state of each moving part is controlled by sensing the position signal of the material.

[0046] Preferably, the frame 10 is provided with a three-way adjustment seat 102, the three-way adjustment seat 102 is provided with a leveling platform 103, and the distance sensor 3 is disposed on the leveling platform 103.

[0047] The beneficial effects described above are: the three-way adjustment seat 102 is used to adjust the position of the distance sensor 3, and after adjustment, it is leveled by the leveling platform 103 to ensure that the distance sensor 3 is horizontally aligned with the side of the passing LCD glass.

[0048] Preferably, the IC chip fixture 8 includes an electric lifting frame 81 and a vacuum suction cup 82. The rotating frame 7 is mounted on the translation frame 5 via the electric lifting frame 81, and the vacuum suction cup 82 is connected to the vacuum generator via a vacuum pipe. Both the electric lifting frame 81 and the vacuum generator are connected to the controller.

[0049] The beneficial effect described above is that the height of the vacuum suction cup 82 can be adjusted by the electric lifting frame 81, thereby enabling the material loading and unloading operation.

[0050] Preferably, there are two or more translation frames 5 arranged at intervals along the conveying direction of the LCD glass conveyor belt 2, and each translation frame 5 is driven by a first slave shaft 4, with the main shaft 1 coupled to two or more first slave shafts 4.

[0051] The beneficial effects described above are: setting up multiple translation frames 5 can install multiple sets of IC chip fixtures 8. When the number of LCD glass is large and the feeding speed is fast, multiple first slave shafts 4 are needed to cooperate and feed alternately in order to ensure production efficiency and bonding accuracy.

[0052] Preferably, it also includes a robotic arm loading platform 104, which is connected to the controller and is used to support and move the IC chip box 9.

[0053] The beneficial effects described above are: the robotic arm loading platform 104 is used to remove the IC chip box from the rack and adaptively move the IC chip box 9 according to the chip feeding process, so as to ensure continuous and high-precision IC chip loading.

[0054] Please refer to Figures 1 to 4 Embodiment 1 of the present invention is: an automatic feeding device for a fully automatic COG binding machine, comprising:

[0055] Rack 10;

[0056] The main shaft 1 includes a first motor 11. The first motor 11 and the LCD glass conveyor belt 2 are both mounted on the frame 10. The first motor 11 is connected to the LCD glass conveyor belt 2 and drives the LCD glass conveyor belt 2 to continuously convey LCD glass along the first horizontal direction. In this embodiment, the LCD glass conveyor belt 2 adopts a belt pulley conveyor assembly.

[0057] Distance sensors 3 are symmetrically arranged on both sides of the LCD glass conveyor belt 2 along a second horizontal direction perpendicular to the first horizontal direction. The pair of distance sensors 3 are used to monitor the distance change between the LCD glass and the opposite sides. A three-way adjustment seat 102 is provided on the frame 10, and a leveling platform 103 is provided on the three-way adjustment seat 102. The distance sensors 3 are set on the leveling platform 103. In this embodiment, the distance sensor 3 is a laser rangefinder. The three-way adjustment seat 102 is an X / Y / Z three-axis motion mechanism. The leveling platform 103 is installed on the three-axis motion mechanism by adjusting bolts. The levelness of the laser rangefinder can be adjusted by rotating the adjusting bolts.

[0058] The controller includes an electronic cam control system for receiving information sent by the first motor 11 and the distance sensor 3 and generating a cam control table; in this embodiment, the controller is a PLC controller.

[0059] The first slave shaft 4 includes a horizontal control motor 41, which is mounted on the frame 10. The horizontal control motor 41 controls the translation frame 5 to slide on the frame 10 along the second horizontal direction above the LCD glass conveyor belt 2 via a lead screw assembly 42 that is horizontally positioned above the LCD glass conveyor belt 2 according to the cam control table.

[0060] The second driven shaft 6 includes an angle control motor 61, which is mounted on the translation frame 5. The angle control motor 61 controls the rotating frame 7 to rotate horizontally on the translation frame 5 according to the cam control table and through a reduction mechanism. In this embodiment, the reduction mechanism is a gear reduction mechanism.

[0061] IC chip fixture 8 is mounted on rotating frame 7 and connected to controller. It is used to pick up IC chips from IC chip box 9 one by one and position them on LCD glass. IC chip fixture 8 includes electric lifting frame 81 and vacuum suction cup 82. Rotating frame 7 is mounted on translation frame 5 through electric lifting frame 81. Vacuum suction cup 82 is connected to vacuum generator through vacuum pipe. Electric lifting frame 81 and vacuum generator are both connected to controller.

[0062] An LCD glass sensing module 101 is mounted on the frame 10. The LCD glass sensing module 101, the distance sensor 3, and the translation frame 5 are arranged sequentially along the first horizontal direction. The LCD glass sensing module 101 is positioned facing the LCD glass conveyor belt 2 and is connected to the controller. In this embodiment, the LCD glass sensing module 101 is a photoelectric sensor.

[0063] The working principle of the fully automatic COG binding machine's automatic feeding device is as follows: The entire machine is controlled by a PLC and HMI. Software algorithms "virtually" generate the cam profile, replacing mechanical contact with electrical signals to achieve motion association between the drive and driven shafts. After setting various parameters according to product requirements, the PLC control system automatically executes the production process according to the set parameters. Simultaneously, the HMI displays the operating status and fault alarm information of each component on the operation interface. Before start-up, each component is reset. After startup, the LCD glass conveyor belt 2 continuously conveys LCD glass at a preset speed. After the photoelectric sensor detects the material, the controller sends a coupling command to the aforementioned components. A laser rangefinder detects the distance coordinates and spacing changes to the side of each passing LCD glass. The control system uses the parameters detected by the LCD glass and the conveyor belt feeding speed as input signals to calculate the simulated cam data and generate a driven shaft control table to control the corresponding movement of the driven shaft. The coordinates of the LCD glass in the direction perpendicular to the feeding direction are mapped to the displacement of the translation frame 5 driven by the horizontal control motor 41. The offset angle of the LCD glass relative to the feeding direction is mapped to the rotation angle of the rotating frame 7 driven by the angle control motor 61. According to the cam table, the IC chip clamp 8 is first moved by the horizontal control motor 41, and the IC chip in the IC chip box 9 is adsorbed by the vacuum suction cup 82. Then, the position of the IC chip clamp 8 is moved by the horizontal control motor 41 and the angle control motor 61 to align the IC chip onto the LCD glass, so that the pre-pressing operation can continue.

[0064] Please refer to Figures 1 to 4 In Embodiment 2 of the present invention, based on Embodiment 1, two or more translation frames 5 are arranged at intervals along the conveying direction of the LCD glass conveyor belt 2. Each translation frame 5 is driven by a horizontal control motor 41. The system controls multiple IC chip fixtures 8 to work alternately and in an orderly manner according to the cam table.

[0065] Please refer to Figure 1The third embodiment of the present invention, based on the first embodiment, further includes a robotic arm loading platform 104. In this embodiment, the robotic arm loading platform 104 is a conventional intelligent robotic arm. The robotic arm loading platform 104 can be used after being connected to the control system. The robotic arm loading platform 104 is used to pick up IC chip boxes 9 one by one from the chip rack, and the movement is controlled by the program to ensure that the IC chips to be loaded are always located at the loading point of the IC chip fixture 8. After all the IC chips in the IC chip box 9 are loaded, the next box is replaced.

[0066] In summary, the fully automatic COG bonding machine automatic feeding device of the present invention generates a cam control table through an electronic cam control system, coupling the main shaft with the first and second slave shafts respectively, thereby achieving continuous feeding of LCD glass and precise loading of IC chips simultaneously, realizing automated alignment of LCD glass and IC chips. Compared with the traditional operation method of using a vision system to capture and calculate the relative positional relationship of the Mark points of LCD glass and IC chips, and then moving and positioning them in a static state through a material transfer component, the present invention, based on an electronic cam control system, couples the LCD glass conveyor belt, distance sensor, clamping movement mechanism, and IC chip clamp. Through the coordinated cooperation of various components, it achieves continuous, efficient, and high-precision online automated positioning of LCD glass and IC chips, intelligent operation, and is applicable to bonding operations of LCD glass and IC chips of different sizes and shapes. It has strong versatility, eliminates the need to mark positioning points on LCD glass and IC chips, and also eliminates the need for pre-positioning and positioning mechanisms for LCD glass and IC chips. It also eliminates the need to stop the machine to collect the relative positional relationship or calibrate the position coordinates. In addition, it avoids the need for a complex clamping movement mechanism design, which makes the equipment more reliable and saves costs.

[0067] The above embodiments are only used to explain the technical solutions of the present invention and not to limit it. Although the above embodiments have provided specific descriptions of the present invention, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications and equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A full-automatic COG bonding machine automatic feeding device, characterized in that, The utility model relates to a kind of IC chip positioning device, including: Main shaft (1), drive LCD glass conveying belt (2) continuous conveying LCD glass along first horizontal direction; Distance sensor (3), a pair of distance sensors (3) are symmetrically provided on the two sides of LCD glass conveying belt (2) along second horizontal direction perpendicular to first horizontal direction, and a pair of distance sensors (3) are used to monitor the distance change value between LCD glass and the two sides respectively; Controller, including electronic cam control system for receiving the information sent by main shaft (1) and distance sensor (3) and generating cam control table; First slave shaft (4), according to cam control table, drive translation frame (5) to move along second horizontal direction; Second slave shaft (6), according to cam control table, drive rotating frame (7) to rotate horizontally on translation frame (5); IC chip clamp (8), set on rotating frame (7) and connected with controller, for grabbing and positioning IC chip in IC chip magazine (9) one by one and placing on LCD glass; According to the deviation of the placement position and the placement angle of LCD glass relative to conveying axis, the electronic cam control system generates cam control table for controlling IC chip clamp (8) according to the parameters of main shaft (1) controlling the feeding speed of LCD glass conveying belt (2) and the parameters detected by distance sensor (3), and according to the offset coordinates of the placement position of LCD glass relative to conveying axis, the IC chip clamp (8) is moved to the positioning point by first slave shaft (4) driving translation frame (5), and according to the offset amount of the placement angle of LCD glass relative to conveying axis, the IC chip clamp (8) is rotated by second slave shaft (6) driving rotating frame (7) to rotate a certain angle, and the IC chip is positioned and placed on the corresponding LCD glass.

2. The automatic feeding device of a full-automatic COG bonding machine according to claim 1, characterized in that, It also includes rack (10), main shaft (1) includes first motor (11), and first motor (11) and LCD glass conveying belt (2) are both installed on rack (10), and first motor (11) is connected with LCD glass conveying belt (2), and electronic cam control system receives the information sent by first motor (11) and distance sensor (3) and generates cam control table.

3. The automatic feeding device of a full-automatic COG bonding machine according to claim 2, characterized in that, First slave shaft (4) includes horizontal control motor (41), horizontal control motor (41) is set on rack (10), and horizontal control motor (41) controls translation frame (5) to slide on rack (10) along second horizontal direction through screw component (42).

4. The automatic feeding device of a full-automatic COG bonding machine according to claim 3, characterized in that, Second slave shaft (6) includes angle control motor (61), angle control motor (61) is set on translation frame (5), and angle control motor (61) controls rotating frame (7) to rotate horizontally on translation frame (5) through speed reduction mechanism.

5. The automatic feeding device of a full-automatic COG bonding machine according to claim 2, characterized in that, Rack (10) is provided with LCD glass sensing module (101), LCD glass sensing module (101), distance sensor (3) and translation frame (5) are sequentially arranged along first horizontal direction, and LCD glass sensing module (101) is set towards LCD glass conveying belt (2), and LCD glass sensing module (101) is connected with controller.

6. The automatic feeding device of a full-automatic COG bonding machine according to claim 2, characterized in that, The rack (10) is provided with a three-way adjusting seat (102), the three-way adjusting seat (102) is provided with a leveling platform (103), and the distance sensor (3) is arranged on the leveling platform (103).

7. The automatic feeding device of a full-automatic COG bonding machine according to claim 1, characterized in that, The IC chip clamp (8) comprises an electric lifting frame (81) and a vacuum chuck (82), the rotating frame (7) is installed on the translation frame (5) through the electric lifting frame (81), the vacuum chuck (82) is connected with a vacuum generator through a vacuum pipeline, and the electric lifting frame (81) and the vacuum generator are connected with the controller.

8. The automatic feeding device of a full-automatic COG bonding machine according to claim 1, characterized in that, The translation frame (5) is arranged at intervals along the conveying direction of the LCD glass conveying belt (2) and is more than two, each translation frame (5) is driven by a first slave shaft (4), and the main shaft (1) is coupled with the more than two first slave shafts (4).

9. The automatic feeding device of a full-automatic COG bonding machine according to claim 1, characterized in that, The mechanical arm loading platform (104) is connected with the controller, and the mechanical arm loading platform (104) is used for supporting and moving the IC chip material box (9).

Citation Information

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