PCB scanning device based on AOI and supporting automatic distinguishing function

Abstract

The utility model discloses a PCB (printed circuit board) scanning device based on AOI (automatic optical inspection) and supporting an automatic distinguishing function, which comprises a workbench, a traction motor and a moving belt, and is characterized in that the workbench is provided with an optical detection machine and a main control board electrically connected with the optical detection machine; the two traction motors are arranged at the two ends of the workbench respectively and electrically connected with the main control board. The middle part of the moving belt is attached to the table surface of the workbench to form a detection surface for placing the PCB, and the two ends of the moving belt are respectively connected to the output shafts of the traction motors at the same ends; during working, the main control board selects whether the PCB is qualified or not based on the optical detection mechanism to control the motor to start, so that the PCB is effectively and automatically distinguished, and the situations of leakage or scrapping and the like caused by improper operation of technicians are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of PCB board production especially relates to a PCB board scanning device based on AOI and support automatic distinguishing function. BACKGROUND

[0002] Automated optical inspection (AOI) is a kind of equipment using optical imaging technology to automatically detect product surface or internal defects.AOI technology is widely used in electronic manufacturing, semiconductor, automobile, medical equipment and other industries, especially in SMT (surface mount technology) production line, for detecting the placement of electronic components, welding quality etc.

[0003] In the production of PCB board, the commonly used automated optical inspection machine scans the PCB board before delivery, and after scanning, manual marking is needed on the PCB board according to whether it is qualified or not, and then OK or NG is marked on the PCB board, so as to distinguish them, but manual distinguishing is time-consuming and laborious, and improper operation of personnel can cause the PCB board to be scrapped or lost, affecting work efficiency, therefore, a device for driving and distinguishing the PCB board is needed to solve the above technical problems. UTILITY MODEL CONTENTS

[0004] In view of the technical problem that manual marking and distinguishing are needed after scanning the PCB board by the optical detection mechanism in the existing PCB board production technology, the utility model provides a solution.

[0005] To achieve the above purpose, the utility model provides a kind of PCB board scanning device based on AOI and support automatic distinguishing function, including:

[0006] Workbench, the workbench is equipped with optical detection machine, and the main control board electrically connected with the optical detection machine;

[0007] Traction motor, two the traction motor is placed at the both ends of workbench respectively, and is electrically connected with main control board;

[0008] Moving belt, the middle part of the moving belt is attached to the table top of the workbench to form a detection surface for placing the PCB board, and both ends are connected to the output shaft of the traction motor at the same end;

[0009] When working, the main control board controls the motor to start based on the optical detection mechanism to determine whether the PCB board is qualified or not.

[0010] As an improved scheme of the utility model, the workbench further includes guide rail, the guide rail is provided with two and is placed at the both sides of the middle part of the moving belt respectively, and is connected to the optical detection machine.

[0011] As an improved scheme of the utility model, still include the cross rail mechanism, the both ends of cross rail mechanism slide lap on the guide rail, the optical detection machine is connected on the cross rail mechanism.

[0012] As an improved scheme of the utility model, still include the assembly board at the both ends of the workbench, the traction motor is assembled on the assembly board.

[0013] As an improved scheme of the utility model, the assembly board is equipped with transmission roller, and the transmission roller is located between the workbench and the traction motor.

[0014] As an improved scheme of the utility model, still include the installation strip for adjusting the installation position of transmission roller.

[0015] As an improved scheme of the utility model, still include the computing device, and the computing device is located at the both ends of the workbench.

[0016] The utility model has the advantages that, compared with the prior art, the utility model provides a PCB scanning device based on AOI and supporting automatic distinguishing function, including workbench, traction motor and mobile belt: wherein, the optical detection machine is assembled on the workbench, and the main control board is electrically connected with the optical detection machine;Two traction motors are respectively arranged at the both ends of the workbench, and are electrically connected with the main control board;The middle part of the mobile belt is attached to the table top of the workbench to form a detection surface for placing the PCB, and the both ends are respectively connected to the output shaft of the traction motor of the same end;When working, the main control board controls the motor to start based on the optical detection mechanism whether the PCB is qualified, effectively realizes the automatic distinguishing of the PCB, and facilitates the loss or scrap caused by improper operation of the technical personnel. ACCURACY OF DRAWINGS

[0017] Figure 1 It is the perspective view of the utility model;

[0018] Figure 2 It is the explosion drawing of the utility model;

[0019] Figure 3 It is another angle perspective view of the utility model.

[0020] The main element symbol explanation is as follows:

[0021] 1, workbench;11, optical detection machine;12, guide rail;13, cross rail mechanism;14, computing device;

[0022] 2, traction motor;3, mobile belt;31, detection surface;4, assembly board;41, transmission roller;

[0023] 42. Mounting strip. DETAILED DESCRIPTION

[0024] In order to make the utility model clearer, the utility model will be further described below in combination with the drawings.

[0025] In the following description, example details are given in order to provide a more thorough understanding of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. It should be understood that the described specific embodiments are only used to explain the utility model, and are not used to limit the utility model.

[0026] It should be understood that when the terms "contain" and / or "include" are used in the specification, it indicates that the features, whole, steps, operations, elements or components exist, but does not exclude the existence or addition of one or more other features, whole, steps, operations, elements, components or their combinations.

[0027] In the production of PCB board, the automatic optical detection machine generally used scans the PCB board before delivery, and after scanning, manual marking OK or NG on the PCB board according to whether it is qualified or not is needed, and then it is distinguished, but manual distinction is time-consuming and laborious, and improper operation of personnel can cause the PCB board to be scrapped or lost, affecting work efficiency; therefore, a device for driving and distinguishing the PCB board is needed to solve the above technical problems.

[0028] In order to solve the above-mentioned technical problems, the present application provides a PCB scanning device based on AOI and supporting automatic distinguishing function, please refer to the accompanying drawings Figure 1 to the accompanying drawings Figure 3 , including workbench 1, traction motor 2 and moving belt 3: wherein the workbench 1 is assembled with optical detection machine 11, and the main control board electrically connected with the optical detection machine 11; two traction motors 2 are respectively arranged at both ends of the workbench 1, and are electrically connected with the main control board; the middle part of the moving belt 3 is attached to the table surface of the workbench 1 to form a detection surface 31 for placing the PCB board, and the both ends are respectively connected to the output shaft of the same end traction motor 2;

[0029] The specific working process of the scanning device is as follows: in order to facilitate the description, the two traction motors 2 are referred to as the first motor and the second motor; first, the technician places the PCB to be detected on the detection surface 31 on the workbench 1, and scans the PCB by starting the optical detection machine 11 located on the detection surface 31; when the optical detection machine 11 scans and detects the PCB, if it is found that the scanned PCB is not the same as the preset standard, an NG signal is generated, and the first motor is controlled to work to drive the PCB to the preset position on the end; if it is found that the scanned PCB is the same as the preset standard, an OK signal is generated, and the second motor is controlled to work to drive the PCB to the preset position on the other end, thereby effectively realizing automatic classification.

[0030] It can be seen that during operation, the main control board controls the motor to start based on the optical detection machine 11 to determine whether the PCB is qualified or not, thereby effectively realizing automatic classification of the PCB and facilitating the technician to avoid missing or scrapping due to improper operation.

[0031] In the embodiment, the workbench 1 further includes guide rails 12, the guide rails 12 are provided in two and are respectively arranged on the two sides of the middle part of the moving belt 3, and are jointly connected to the optical detection machine 11; it can be understood that the detection surface 31 formed by the optical detection machine 11 has a limited area, and in the case of a certain space, the guide rails 12 enable the optical detection machine 11 to move on the detection surface 31, thereby scanning each area of the PCB.

[0032] In a further scheme, a cross rail mechanism 13 is further included, the two ends of the cross rail mechanism 13 are slidably connected to the guide rails 12, and the optical detection machine 11 is slidably connected to the cross rail mechanism 13; the cross rail mechanism 13 effectively expands the moving direction of the optical detection machine 11, that is, the guide rails 12 enable the optical detection machine 11 to reciprocate in the length direction of the PCB, and the cross rail mechanism 13 enables the optical detection machine 11 to reciprocate in the width direction of the PCB, thereby being able to move to any position to realize overall scanning of the PCB.

[0033] In the embodiment, assembly plates 4 are further arranged at the two ends of the workbench 1, and the traction motors 2 are assembled on the assembly plates 4, thereby enabling the two end surfaces of the workbench 1 to not bear the installation responsibility, and thereby enabling the area of the detection surface 31 to be larger and enabling larger PCBs to be scanned.

[0034] In the embodiment, the assembly plates 4 are each provided with a transmission roller 41, and the transmission roller 41 is located between the workbench 1 and the traction motor 2; the transmission roller 41 can increase the adhesion of the moving belt 3 on the workbench 1, thereby making the transmission precision higher and realizing more stable transmission performance.

[0035] In the more optimal scheme, the mounting strip 42 for adjusting the mounting position of the transmission roller 41 is further included; it is not difficult to understand that the mounting strip 42 is provided with a plurality of mounting holes at intervals, and the transmission roller 41 can be mounted at different heights through the plurality of mounting holes, thereby being able to adapt to the work of the mobile belt 3 of different lengths.

[0036] In the embodiment, the computing device 14 is further included, and the computing device 14 is located at both ends of the workbench 1; the computing device 14 is used for computing the PCB, thereby facilitating technicians to count the out-of-stock and yield.

[0037] The advantage of the utility model lies in:

[0038] 1, the main control panel is based on the optical detection mechanism and selects one control motor starting whether the PCB is qualified, effectively realizes the automatic distinction of the PCB, and facilitates the loss or scrap caused by the improper operation of the technicians;

[0039] 2, the traction motor is mounted through the assembly plate, thereby the two end faces of the workbench do not need to bear the mounting responsibility, thereby the area of the detection surface is larger, and the larger PCB can be scanned.

[0040] The above disclosure is only several specific embodiments of the utility model, but the utility model is not limited to this, and any change that can be thought of by any person skilled in the art should fall within the protection scope of the utility model.

Claims

1. A PCB board scanning device based on AOI and supporting automatic differentiation function, characterized in that, include: A workbench, the workbench being equipped with an optical inspection machine and a main control board electrically connected to the optical inspection machine; The two traction motors are respectively placed at both ends of the workbench and are electrically connected to the main control board. A movable belt, the middle of which is attached to the table surface of the workbench to form a detection surface for placing the PCB board, and the two ends are respectively connected to the output shaft of the traction motor at the same end; During operation, the main control board controls the motor to start based on whether the PCB board is qualified or not, determined by the optical inspection mechanism.

2. The PCB board scanning device based on AOI and supporting automatic differentiation function according to claim 1, characterized in that, The worktable also includes guide rails, two of which are respectively placed on both sides of the middle of the moving belt and are connected to the optical inspection machine.

3. The PCB board scanning device based on AOI and supporting automatic differentiation function according to claim 2, characterized in that, It also includes a horizontal rail mechanism, the two ends of which are slidably connected to the guide rail, and the optical inspection machine is slidably connected to the horizontal rail mechanism.

4. The PCB board scanning device based on AOI and supporting automatic differentiation function according to claim 1, characterized in that, It also includes assembly plates located at both ends of the workbench, on which the traction motor is mounted.

5. The PCB board scanning device based on AOI and supporting automatic differentiation function according to claim 4, characterized in that, Each assembly plate is equipped with a transmission roller, which is located between the worktable and the traction motor.

6. The PCB board scanning device based on AOI and supporting automatic differentiation function according to claim 5, characterized in that, It also includes a mounting strip for adjusting the mounting position of the drive roller.

7. The PCB board scanning device based on AOI and supporting automatic differentiation function according to claim 1, characterized in that, It also includes computing devices located at both ends of the worktable.

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