Novel four-side camera acquisition device

Abstract

The utility model relates to the technical field of light source camera acquisition, and discloses a novel four-side camera acquisition device, which comprises a support, an objective table, a top camera, a side camera, a light source and a controller, the objective table, the top camera, the side camera, the light source and the controller are respectively arranged on the support, the objective table is arranged in the middle of the support, and the controller is arranged in the middle of the support. A light source and a top camera are sequentially arranged above the objective table, the center of the objective table, the center of the light source and the center of the top camera are located on the same straight line, side cameras are arranged on the upper portion of the periphery of the objective table, the center of the objective table is located on the center line of the side cameras, and the control end of the controller is electrically connected with the top camera, the side cameras and the light source. By means of reasonable design of the collecting device, light source irradiation can be better balanced, meanwhile, the problem of a shadow area is well solved, the actual situation of collecting scaling powder and glue in multiple directions is achieved, and collecting missing, influences on detection results and the like are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of light source camera acquisition, and in particular to a novel four-sided camera acquisition device. Background Art

[0002] 3D Automatic Optical Inspection (3DAOI) is a SMT inspection device that uses the principle of optics to calculate the height of solder paste printed on a circuit board (PCB) by triangulation. In order to detect the actual conditions of flux and glue on the circuit board, it is necessary to use a light source to provide effective light irradiation on the inspection circuit board, and it is also necessary to perform multi-faceted inspection to ensure that the circuit board is inspected without missing inspections or dead angles. However, there are many shortcomings in the light sources of existing SMT inspection equipment on the market. When used, the illumination of the light source is uneven, and one side will be relatively bright and the other side will be relatively dark, which affects the image balance of the optical inspection of the circuit board; and when the light source irradiates the circuit board, due to the presence of components of different heights on the circuit board, there will be shadows and weak light areas, which will have a great impact on the inspection results; and there is only a simple top camera to collect the actual conditions of flux and glue on the circuit board, which will result in missing inspections and affect the inspection quality.

[0003] Therefore, in view of the above problems, the existing collection device needs to be further improved. Utility Model Content

[0004] The purpose of the utility model is to overcome the problems of uneven light source illumination, insufficient or uneven reflected light intensity, and collection defects in one-way collection in the existing detection of the actual conditions of solder flux and glue on circuit boards. By rationalizing the design of the collection device, using a bracket, a stage, a top camera, a side camera, a light source and a controller, it is possible to achieve better balance of light source illumination, and at the same time, solve the problem of shadow areas well, and realize multi-directional collection of the actual conditions of solder flux and glue, avoiding collection omissions and affecting the detection results. The collection device can effectively detect circuit boards and improve its detection efficiency.

[0005] The technical solution of the utility model is as follows:

[0006] A novel four-sided camera acquisition device, the four-sided camera acquisition device comprises: a bracket, a stage, a top camera, a side camera, a light source and a controller, the stage, the top camera, the side camera, the light source and the controller are respectively mounted on the bracket, the stage is arranged in the middle of the bracket, the light source and the top camera are arranged in sequence above the stage, the center of the stage is in a straight line with the center of the light source and the center of the top camera, the side cameras are arranged on the upper part around the stage, the center of the stage is on the center line of the side cameras, and the control ends of the controller are respectively electrically connected to the acquisition control end of the top camera, the acquisition control end of the side camera and the control end of the light source.

[0007] Furthermore, the side cameras are at least two CCD cameras.

[0008] Furthermore, the side cameras are evenly distributed around the stage.

[0009] Furthermore, the light source includes a lamp housing, an LED lamp, glass, a mounting mechanism and a light source through hole, the light source through hole is provided on the upper part of the lamp housing, the mounting mechanism is installed on the inner side of the lamp housing, the LED lamp is installed on the mounting mechanism, the glass is sleeved on the LED lamp, and the glass is installed on the mounting mechanism, and the control end of the controller is electrically connected to the LED lamp.

[0010] Furthermore, the mounting mechanism includes a mounting base, an upper fixing block and a lower fixing block, the mounting base is mounted on the inner side of the lamp housing, the upper fixing block is mounted on the upper part of the mounting base, and the lower fixing block is mounted on the lower part of the mounting base, and the cooperation between the upper fixing block and the lower fixing block is used to limit the LED lamp.

[0011] Furthermore, the mounting seat is a circular ring-shaped mounting seat.

[0012] Furthermore, the upper fixing block and the lower fixing block are both in a circular ring shape.

[0013] Furthermore, the mounting seat, the upper fixing block and the lower fixing block are all integrally formed by injection molding.

[0014] Furthermore, the lamp housing is a circular lamp housing, the lower part of the circular lamp housing is open, and the opening is communicated with the light source through hole.

[0015] Furthermore, the lamp housing is made of metal or plastic.

[0016] Furthermore, the LED lamp is a ring-shaped LED lamp.

[0017] Furthermore, the light source through hole is arranged at the center of the lamp housing.

[0018] Furthermore, the light source through hole is a circular through hole.

[0019] Furthermore, the side camera is arranged at an angle, and a collection lens of the side camera is cut obliquely toward the stage.

[0020] Beneficial Effects

[0021] The utility model rationally designs the acquisition device, adopts a bracket, a stage, a top camera, a side camera, a light source and a controller, can realize a better balance of light source illumination, and at the same time, solves the problem of shadow area well, and realizes the actual situation of collecting solder flux and glue in multiple directions, avoids missing collection, affects the detection results, etc. The acquisition device can effectively detect the circuit board and improve its detection efficiency. The light source adopts the lamp housing, LED lamp, glass, mounting mechanism and light source through hole, can realize a better balance of light source illumination, etc.; the light source adopts the cooperation of purple glass, LED lamp and mounting mechanism, realizes that the mounting surface (also the light emitting surface) is 45° downwardly emitted from the horizontal, and is matched with 20 evenly distributed LED lamp beads, can realize the balanced light emission of purple light on the circuit board, the purple light is annular on the central axis, and the components in other positions are not light-transmissive, ensuring a more balanced purple light and better utilization of the light source, etc.; the light source realizes a uniform light source distribution, compact structure, reduced installation space, improved measurement accuracy, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a novel four-sided camera acquisition device of the utility model.

[0023] Figure 2 This is a structural schematic diagram of another viewing angle of a novel four-sided camera acquisition device of the utility model.

[0024] Figure 3 This is a schematic diagram of the light source cross-sectional structure of a novel four-sided camera acquisition device of the utility model.

[0025] Figure 4 The utility model is a schematic diagram of the light source structure of a novel four-sided camera acquisition device.

[0026] Figure 5 This is a schematic diagram of the exploded structure of a light source of a novel four-sided camera acquisition device of the utility model.

[0027] Figure numbers: 01, bracket; 02, top bracket; 03, side camera; 04, top camera; 05, light source; 06, stage; 07, support leg; 08, universal wheel; 1, lamp housing; 4, light source through hole; 7, upper fixing block; 8, glass; 9, lower fixing block; 10, mounting base; 11, LED lamp. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-Figure 5 As shown, the utility model provides a novel four-sided camera acquisition device, which includes: a bracket 01, a stage 06, a top camera 04, a side camera 03, a light source 05 and a controller. The stage 06, the top camera 04, the side camera 03, the light source 05 and the controller (not shown in the figure) are respectively installed on the bracket 01, the stage 06 is arranged in the middle of the bracket 01, and the light source 05 and the top camera 04 are arranged above the stage 06 in sequence. The center of the stage 06 is in a straight line with the center of the light source 05 and the center of the top camera 04. The side cameras 03 are arranged on the upper part around the stage 06. The side cameras 03 select 4 CCD cameras , and the side cameras 03 are evenly distributed around the stage 06, that is: the four CCD cameras are vertically arranged, and the four CCD cameras are arranged on the same horizontal plane, the center of the stage 06 is on the center line of the side camera 03, and the control end of the controller is electrically connected to the acquisition control end of the top camera 04, the acquisition control end of the side camera 03 and the control end of the light source 05 respectively; wherein, the lower part of the bracket 01 is provided with a placement cabinet, and the placement cabinet is used to store and place articles, etc., the upper part of the bracket 01 is provided with a top bracket 02, and the top bracket 02 is used to install the top camera 04 and the light source 05, and the four corners of the bottom of the bracket 01 are respectively provided with supporting feet 07 and universal wheels 08;

[0030] Among them, the light source 05 includes a lamp housing 1, an LED lamp 11, a glass 8, a mounting mechanism and a light source through hole 4. The upper part of the lamp housing 1 is provided with a light source through hole 4, the mounting mechanism is installed on the inner side of the lamp housing 1, the LED lamp 11 is installed on the mounting mechanism, the glass 8 is sleeved on the LED lamp 11, and the glass 8 is installed on the mounting mechanism, and the control end of the controller is electrically connected to the LED lamp 11; the mounting mechanism includes a mounting seat 10, an upper fixing block 7 and a lower fixing block 9, the mounting seat 10 is installed on the inner side of the lamp housing 1, the upper fixing block 7 is installed on the upper part of the mounting seat 10, and the lower fixing block 9 is installed on the lower part of the mounting seat 10, and the upper fixing block 7 and the lower fixing block 9 cooperate to limit the LED lamp 11; the LED lamp 11 is set to be tilted downward, and the tilt angle can be selected from 30° to 45°. Here, it is preferred to take the LED lamp 11 and The horizontal plane is 45°, and 20 LED lamp beads are evenly distributed on the LED lamp 11; the light source 05 is a circular light source, that is: the lamp housing 1, LED lamp 11, glass 8, mounting mechanism and light source through hole 4 are all circularly arranged, and their centers are all on a straight line, the mounting seat 10 here is a circular mounting seat, the upper fixing block 7 and the lower fixing block 9 are both circularly arranged, and the mounting seat 10, the upper fixing block 7 and the lower fixing block 9 are all integrally injection molded; the lamp housing 1 is a circular lamp housing 1, the lower opening of the circular lamp housing 1 (circular opening), and the opening is interconnected with the light source through hole 4; the lamp housing 1 is a lamp housing made of metal or plastic material, the LED lamp 11 is a circular LED lamp, and the light source through hole 4 is arranged at the center of the lamp housing 1; the light source through hole is a circular through hole;

[0031] The side camera 03 is tilted, and the acquisition lens of the side camera 03 is tilted toward the stage 06 .

[0032] Specific implementation methods of the utility model: After assembling the acquisition device, starting the controller will control the lighting or extinguishing of the LED light or the brightness adjustment, etc. When the LED light is on, the LED light will illuminate the circuit board object on the stage of the acquisition device. The object is placed at the center of the stage. The controller will also control the top camera and the side camera. Here, the top camera and the side camera are both CCD cameras. The CCD camera collects optical images of the top and surrounding areas of the circuit board object on the stage. The object will reflect light into the CCD camera, and then the optical imaging of the circuit board object is performed through the controller and an external computer, and then the circuit board object is detected.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel four-sided camera acquisition device, characterized in that: The four-sided camera acquisition device includes: a bracket, a stage, a top camera, a side camera, a light source and a controller. The stage, the top camera, the side camera, the light source and the controller are respectively installed on the bracket. The stage is arranged in the middle of the bracket. The light source and the top camera are arranged in sequence above the stage. The center of the stage is in a straight line with the center of the light source and the center of the top camera. The side cameras are arranged on the upper part of the four sides of the stage. The center of the stage is on the center line of the side camera. The control ends of the controller are respectively electrically connected to the acquisition control end of the top camera, the acquisition control end of the side camera and the control end of the light source.

2. A novel four-sided camera acquisition device according to claim 1, characterized in that: The side cameras are at least two CCD cameras.

3. A novel four-sided camera acquisition device according to claim 2, characterized in that: The side cameras are evenly distributed around the stage.

4. According to the novel four-sided camera acquisition device of claim 1, it is characterized in that: The light source includes a lamp housing, an LED lamp, glass, a mounting mechanism and a light source through hole. The light source through hole is provided on the upper part of the lamp housing, the mounting mechanism is installed on the inner side of the lamp housing, the LED lamp is installed on the mounting mechanism, the glass is sleeved on the LED lamp, and the glass is installed on the mounting mechanism, and the control end of the controller is electrically connected to the LED lamp.

5. A novel four-sided camera acquisition device according to claim 4, characterized in that: The mounting mechanism includes a mounting seat, an upper fixing block and a lower fixing block. The mounting seat is mounted on the inner side of the lamp housing, the upper fixing block is mounted on the upper part of the mounting seat, and the lower fixing block is mounted on the lower part of the mounting seat. The cooperation between the upper fixing block and the lower fixing block is used to limit the LED lamp.

6. A novel four-sided camera acquisition device according to claim 4, characterized in that: The lamp housing is a circular lamp housing.

7. A novel four-sided camera acquisition device according to claim 4, characterized in that: The lamp housing is made of metal or plastic.

8. The novel four-sided camera acquisition device according to claim 4 is characterized in that: The LED lamp is a circular LED lamp.

9. The novel four-sided camera acquisition device according to claim 4 is characterized in that: The light source through hole is arranged at the center of the lamp housing.

10. A novel four-sided camera acquisition device according to claim 1, characterized in that: The side camera is tilted, and the collection lens of the side camera is tilted toward the stage.

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