CN210005459U

CN210005459U - automatic optical detector

Info

Publication number: CN210005459U
Application number: CN201920303068.5U
Authority: CN
Inventors: 张未繁; 李武; 江忠胜; 娄阳
Original assignee: Zhuhai Hongsen Electronic Technology Co Ltd
Current assignee: Zhuhai Hongsen Electronic Technology Co Ltd
Priority date: 2019-03-11
Filing date: 2019-03-11
Publication date: 2020-01-31
Anticipated expiration: 2029-03-11

Abstract

The utility model discloses an kinds of automatic optical inspection appearance, including base, casing, exposure fluorescent tube, AOI camera, controlling means, computer, casing fixed connection is in the top surface of base, and the both sides of casing respectively are equipped with the opening that supplies the PCB circuit board to pass through, are equipped with the shading area in bank on the opening, the quantity of exposure fluorescent tube is four and locates the inside four corners of casing respectively and perpendicular with the opening, the quantity of AOI camera is two and locates the inside both sides of casing respectively and lie in between two exposure fluorescent tubes from top to bottom, controlling means and exposure fluorescent tube, AOI camera signal connection, controlling means and computer communication, the utility model discloses novel mechanism, two AOI cameras simultaneous working can detect the tow sides of PCB board and need not the upset in testing process, avoid repeated process, are favorable to improving work efficiency.

Description

automatic optical detector

Technical Field

The utility model relates to a PCB board quality testing technical field specifically is kinds of automatic optical inspection appearance.

Background

The optical detector automatically scans the PCB through the AOI camera, acquires images by utilizing the reflective characteristic of soldering tin, compares the tested welding spots with qualified parameters in a database, inspects the defects on the PCB through image processing, and displays or marks the defects through a display or an automatic mark for maintenance personnel to repair.

The conventional optical detector can only detect the surfaces of the PCB, and the special double-sided PCB needs to be turned over and then is detected again, so that the process is repeated, and the improvement of the working efficiency is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing kinds of technical scheme that can solve above-mentioned problem.

automatic optical detector comprises a base, a shell, exposure lamp tubes, AOI cameras, a control device and a computer, wherein the shell is fixedly connected to the top surface of the base, openings for PCB circuit boards to pass through are respectively arranged on two sides of the shell, rows of shading strips are arranged on the openings, the number of the exposure lamp tubes is four, the four exposure lamp tubes are respectively arranged at four corners inside the shell and are vertical to the openings, the number of the AOI cameras is two, the two exposure lamp tubes are respectively arranged on two sides inside the shell and are positioned between the upper exposure lamp tube and the lower exposure lamp tube, the control device is in signal connection with the exposure lamp tubes and the AOI cameras, and the control device is in communication with the computer.

, a V-shaped guide lampshade is arranged on the exposure lamp.

And , arranging a conveyor belt on the base, wherein the conveyor belt is perpendicular to the opening in the middle, and clamping pieces for clamping the PCB are arranged on the center line of the conveyor belt at intervals.

, the clip is a two-piece resilient metal sheet.

, a control circuit, a data acquisition circuit and a communication circuit are arranged in the control device, the data acquisition circuit is in signal connection with the AOI camera and is in signal connection with the control circuit, the communication circuit is in signal connection with the control circuit, and the exposure lamp is in signal connection with the control circuit.

At step , the control device is in signal communication with the computer via the communication circuit.

Compared with the prior art, the utility model discloses the beneficial effect who gains does the utility model discloses the mechanism is novel, and two AOI cameras simultaneous working can detect the tow sides of PCB board and need not the upset in times testing process, avoid repeating process, are favorable to improving work efficiency.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a schematic structural diagram of kinds of automatic optical detectors of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a system block diagram of the control device of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only some embodiments, not all embodiments, .

Referring to fig. 1-3, kinds of automatic optical inspection instruments include a base 1, a housing 2, exposure lamps 3, AOI cameras 4, a control device 5, and a computer 6, wherein the housing 2 is fixedly connected to the top surface of the base 1, openings 21 for PCB circuit boards 7 to pass through are respectively provided on both sides of the housing 1, rows of shading bands 211 are provided on the openings 21, the number of the exposure lamps 3 is four, the four exposure lamps are respectively provided at four corners inside the housing 2 and are perpendicular to the openings 21, the number of the AOI cameras 4 is two, the two exposure lamps 3 are respectively provided on both sides inside the housing 2 and are located between the upper and lower exposure lamps 3, the control device 5 is in signal connection with the exposure lamps 3 and the AOI cameras 3, and the control device 5 is in communication with the computer 6.

, a V-shaped guide lampshade 31 is arranged on the exposure lamp 3.

, a conveyor belt 11 is arranged on the base 1, the conveyor belt 11 is perpendicular to the opening 21 in the middle, and clamping pieces 111 for clamping the PCB are arranged on the center line of the conveyor belt 11 at intervals.

, the clip 111 is a two-piece resilient metal sheet.

, a control circuit 51, a data acquisition circuit 52 and a communication circuit 53 are arranged in the control device 5, the data acquisition circuit 52 is in signal connection with the AOI camera 4 and is in signal connection with the control circuit 51, the communication circuit 53 is in signal connection with the control circuit 51, and the exposure lamp 3 is in signal connection with the control circuit 51.

, the control device 5 is connected with the computer 6 through the communication circuit 53.

The utility model discloses a theory of operation does: the welding spot data corresponding to the PCB 7 is pre-stored in the computer 6 and set as a file, light of the exposure lamp tube 3 irradiates the PCB 7 under the guidance of the V-shaped guide lampshade 31, a highlight area is formed by utilizing the light reflection characteristic of soldering tin, the AOI cameras 3 on two sides shoot and record colleagues, data are collected through the data collection circuit 52, the data are transmitted to the computer 6 through the communication circuit 53 and are compared with a design file pre-stored in the computer 6, the positions of the welding spots on two sides of the PCB 7 and the quantity of the welding spots on the PCB 7 are compared with the design file quickly, and the working efficiency is improved.

It will thus be seen that the present invention is illustrative and not restrictive, and the scope of the invention is defined by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

The automatic optical detectors comprise a base, a shell, exposure lamp tubes, AOI cameras, a control device and a computer, and are characterized in that the shell is fixedly connected to the top surface of the base, openings for PCB circuit boards to pass through are respectively arranged on two sides of the shell, rows of shading belts are arranged on the openings, the number of the exposure lamp tubes is four, the four exposure lamp tubes are respectively arranged at four corners inside the shell and are perpendicular to the openings, the number of the AOI cameras is two, the two AOI cameras are respectively arranged on two sides inside the shell and are positioned between the upper exposure lamp tube and the lower exposure lamp tube, the control device is in signal connection with the exposure lamp tubes and the cameras, and the control device is in communication with the computer.
2. The automated optical inspection machine of claim 1, wherein the exposure lamp is provided with a V-shaped guide lampshade.
3. The automatic optical inspection machine of claim 1, wherein the base has a conveyor belt centered and perpendicular to the opening, the conveyor belt having spaced clips on a centerline for holding the PCB.
4. The automated optical inspection machine of claim 3, wherein the clips are two pieces of resilient metal foil.
5. The automatic optical inspection machine according to claim 1, wherein the control device has a control circuit, a data acquisition circuit, a communication circuit, the data acquisition circuit is in signal connection with the AOI camera and the control circuit, the communication circuit is in signal connection with the control circuit, and the exposure lamp is in signal connection with the control circuit.
6. The automated optical inspection machine of claim 5, wherein the control device is in signal communication with a computer via the communication circuitry.