Linear scanning AOI automatic detection module

Abstract

The invention provides a line scanning AOI automatic detection module which comprises a shell, a first light source is arranged at the top of the shell, a total reflection mirror is arranged at the front end of the first light source, a second light source and a third light source are arranged in the shell, a nanometer diffuse reflection dome is arranged at the front end of the second light source, and a lens is arranged at the front end of the third light source. Light paths of the first light source, the second light source and the third light source are converged at one point, and a line scanning camera is obliquely arranged above the shell; compared with an existing AOI detection technology of an area array, the coaxial effect can be achieved without a spectroscope, ghosting can be avoided, the definition is high, the detection precision is high, and the cost is reduced; meanwhile, the detection efficiency is high, and the method can be used for uninterruptedly and continuously detecting scenes; and ultrahigh-brightness high-speed detection can be realized.

Description

Technical Field

[0001] The present invention relates to the field of AOI detection technology, and in particular to a line scanning AOI automatic detection module. Background Art

[0002] At present, the AOI detection in traditional technology is all three-color area array AOI, which is used in conjunction with an area array camera. It has a slow scanning speed and insufficient accuracy and cannot be used for continuous inspection on site.

[0003] Therefore, there is an urgent need for a line scanning AOI automated inspection module that can solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a line scanning AOI automatic inspection module to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a line scan AOI automated inspection module, comprising a shell, a first light source is provided on the top of the shell, a total reflection mirror is provided at the front end of the first light source, a second light source and a third light source are provided in the shell, a nano diffuse reflection dome is provided at the front end of the second light source, a lens is provided at the front end of the third light source, the light paths of the first light source, the second light source and the third light source converge at one point, and a line scan camera is provided obliquely above the shell.

[0007] Preferably, the first light source, the second light source and the third light source emit B / R / G three-color lights respectively.

[0008] Preferably, a lens is provided between the first light source and the total reflection mirror.

[0009] Preferably, a heat dissipation structure is provided on the side of the housing.

[0010] Preferably, the heat dissipation structure adopts a water-cooling heat dissipation structure or an air-cooling heat dissipation structure.

[0011] Preferably, the angle between the line scan camera and the vertical direction is less than 5°.

[0012] Preferably, the sum of the angles between the line scan camera and the vertical direction and the angles between the total reflection mirror and the horizontal direction is 45°.

[0013] Compared with the prior art, the present invention has achieved the following beneficial technical effects:

[0014] The present invention provides a line scan AOI automated inspection module, comprising a shell, a first light source is provided on the top of the shell, a total reflection mirror is provided at the front end of the first light source, a second light source and a third light source are provided in the shell, a nano diffuse reflection dome is provided at the front end of the second light source, a lens is provided at the front end of the third light source, the light paths of the first light source, the second light source and the third light source converge at one point, and a line scan camera is obliquely provided above the shell; compared with the existing area array AOI inspection technology, the present invention can achieve a coaxial effect without a beam splitter, can avoid ghosting, has high clarity, high inspection accuracy, and reduces costs; at the same time, the inspection efficiency is high, and can be used for uninterrupted continuous inspection scenes; and ultra-high brightness high-speed inspection can also be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 A schematic diagram of the structure of a line scanning AOI automated inspection module provided by the present invention. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] The purpose of the present invention is to provide a line scanning AOI automatic inspection module to solve the problems existing in the prior art.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Embodiment 1:

[0021] This embodiment provides a line scanning AOI automatic inspection module, such as Figure 1As shown, it includes a shell 1, a first light source 2 is provided on the top of the shell 1, a total reflection mirror 3 is provided at the front end of the first light source 2, a second light source 4 and a third light source 5 are provided in the shell 1, a nano diffuse reflection dome 6 is provided at the front end of the second light source 4, a lens 7 is provided at the front end of the third light source 5, the light paths of the first light source 2, the second light source 4 and the third light source 5 converge at one point, and a line scan camera 8 is obliquely provided above the shell 1.

[0022] As an implementation manner, the first light source 2, the second light source 4 and the third light source 5 emit three-color lights of B / R / G respectively, and the three-color lights are lit at the same time.

[0023] As an implementation manner, a lens is provided between the first light source 2 and the total reflection mirror 3 .

[0024] As an implementation manner, a heat dissipation structure 9 is provided on the side of the housing 1 .

[0025] As an implementation mode, since a high-brightness LED can be used as a light source, the heat dissipation structure 9 adopts a water-cooling heat dissipation structure or an air-cooling heat dissipation structure.

[0026] As an implementation manner, the angle A between the line scan camera 8 and the vertical direction is less than 5°.

[0027] As an implementation manner, the sum of the angle A between the line scan camera 8 and the vertical direction and the angle B between the total reflection mirror 3 and the horizontal direction is 45°.

[0028] The line scan AOI automatic inspection module provided by the present invention has a more compact structure than the existing area array AOI inspection technology, can achieve a coaxial effect without passing through a beam splitter, can avoid ghosting, has high clarity, high inspection accuracy, and reduces costs; at the same time, it has high inspection efficiency and can be used in uninterrupted continuous inspection scenarios; it can also achieve ultra-high brightness and high-speed inspection.

[0029] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A line scanning AOI automated inspection module, characterized in that: The invention comprises a shell, a first light source is arranged on the top of the shell, a total reflection mirror is arranged at the front end of the first light source, a second light source and a third light source are arranged in the shell, a nano diffuse reflection dome is arranged at the front end of the second light source, a lens is arranged at the front end of the third light source, the light paths of the first light source, the second light source and the third light source converge at one point, and a line scanning camera is arranged obliquely above the shell.

2. The line scanning AOI automated inspection module according to claim 1, characterized in that: The first light source, the second light source and the third light source emit B / R / G three-color lights respectively.

3. The line scanning AOI automated inspection module according to claim 1, characterized in that: A lens is provided between the first light source and the total reflection mirror.

4. The line scanning AOI automated inspection module according to claim 1, characterized in that: A heat dissipation structure is provided on the side of the shell.

5. The line scanning AOI automated inspection module according to claim 3, characterized in that: The heat dissipation structure adopts a water-cooling heat dissipation structure or an air-cooling heat dissipation structure.

6. The line scanning AOI automated inspection module according to claim 1, characterized in that: The angle between the line scan camera and the vertical direction is less than 5°.

7. The line scanning AOI automated inspection module according to claim 1, characterized in that: The sum of the angles between the line scan camera and the vertical direction and the angles between the total reflection mirror and the horizontal direction is 45°.

Images