Light source assembly with multiple light polymerization and visual inspection device

Abstract

The embodiment of the invention discloses a light source assembly with multiple light polymerization and a visual inspection device, which are used for solving the technical problem of insufficient irradiation intensity of the existing light source assembly. The embodiment of the invention comprises a grid reflector, a first light source body, a second light source body and a condensation module, the grid reflecting mirror is located above the condensation module and forms a certain inclined angle with the plane where the condensation module is located; a plurality of reflection areas and transmission areas are alternately arranged on the grid reflector; the first light source body is located on one side of the grid reflecting mirror, and first light emitted by the first light source body irradiates into a reflecting area of the grid reflecting mirror and is reflected to the condensation module through the reflecting area; the second light source body is located above the grid reflecting mirror, and second light rays emitted by the second light source body irradiate the transmission area of the grid reflecting mirror and are transmitted to the condensation module through the transmission area; the light gathering module is used for gathering the first light and the second light.

Description

Technical Field

[0001] The present invention relates to the field of visual detection technology, and in particular to a light source component for multiple light aggregation and a visual detection device. Background Art

[0002] The inspection of existing workpieces is generally completed through visual inspection devices, which specifically include an inspection camera, a lens connected to the inspection camera, and a light source assembly, wherein the light source assembly is used to emit irradiation light to the inspected surface of the workpiece, and the inspection camera is used to obtain the light reflected from the inspected surface to form an image.

[0003] Currently, commonly used light source components generally include PCB boards and lamp beads arranged on the PCB boards. In actual work, the light intensity emitted by the above-mentioned light source components is insufficient, and the exposure time is long when shooting, which limits the CYCLE TIME (production cycle time) of the visual inspection device, resulting in insufficient detection efficiency of the visual inspection device. Although the cavity light intensity can be increased by increasing the driving current of the LED / LD, the adjustment range is limited, and there are still restrictions on the production cycle time and detection efficiency of the equipment.

[0004] Therefore, finding a technical solution that can solve the above technical problems has become an important topic studied by technical personnel in this field. Summary of the invention

[0005] The embodiment of the present invention discloses a light source assembly with multiple light aggregation and a visual detection device, which are used to solve the technical problem of insufficient illumination intensity of the existing light source assembly.

[0006] The present invention provides a light source assembly for multiple light aggregation, comprising a grid reflector, a first light source body, a second light source body and a focusing module;

[0007] The grid reflector is located above the focusing module and is inclined at a certain angle to the plane where the focusing module is located;

[0008] The grid reflector is provided with a plurality of reflection areas and transmission areas alternately;

[0009] The first light source is located on one side of the grid reflector, and the first light emitted by the first light source is irradiated into the reflection area of ​​the grid reflector and is reflected from the reflection area to the focusing module;

[0010] The second light source is located above the grid reflector, and the second light emitted by the second light source irradiates the transmission area of ​​the grid reflector and is transmitted to the focusing module through the transmission area;

[0011] The focusing module is used to converge the first light and the second light.

[0012] Optionally, a reflective film layer is provided on the grid reflector to form the reflective area.

[0013] Optionally, a transmission film layer is provided on the grid reflector to form the transmission area.

[0014] Optionally, the plane where the first light source is located is perpendicular to the plane where the second light source is located, and the plane where the first light source is located forms an angle of 45° with the plane where the grid reflector is located, and the plane where the second light source is located forms an angle of 45° with the plane where the grid reflector is located.

[0015] Optionally, the focusing module is a double convex mirror.

[0016] Optionally, the first light source includes a first PCB board and a first lamp bead arranged on the first PCB board;

[0017] There are multiple first lamp beads, and the multiple first lamp beads are arranged in a straight line on the first PCB board and are set at a preset distance.

[0018] Optionally, the second light source includes a second PCB board and a second lamp bead arranged on the second PCB board;

[0019] There are multiple second lamp beads, and the multiple second lamp beads are arranged in a straight line on the second PCB board and are set at a preset distance.

[0020] Optionally, the first light source further includes a first heat dissipation substrate, and the first heat dissipation substrate is disposed on a side of the first PCB board away from the first lamp bead.

[0021] Optionally, the second light source further includes a second heat dissipation substrate, and the second heat dissipation substrate is disposed on a side of the second PCB board away from the second lamp bead.

[0022] The present invention provides a visual inspection device, which includes a detection camera, a lens, and the above-mentioned light source component for multiple light aggregation.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] In the light source assembly with multiple light aggregation of the present embodiment, the first light source body is located on one side of the grid reflector, the first light emitted by the first light source body irradiates the reflection area of ​​the grid reflector and is reflected to the focusing module through the reflection area, the second light source body is located above the grid reflector, the second light emitted by the second light source body irradiates the transmission area of ​​the grid reflector and is transmitted to the focusing module through the transmission area, and the focusing module converges the first light and the second light. Through the above design, the first light and the second light are respectively emitted and transmitted by the grid reflector and then converged and intersected through the focusing module, so that a higher light intensity is obtained at the convergence and intersection of the first light and the second light, effectively overcoming the problem of insufficient illumination emphasis of the current light source assembly, and effectively solving the problem of limited throughput and production cycle time of the visual inspection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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 or the description of the prior art 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 work.

[0026] Figure 1 A schematic diagram of the structure of a light source assembly for multiple light aggregation provided by an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of the structure of a light source assembly for multiple light aggregation provided by an embodiment of the present invention from another angle;

[0028] Illustration: first light source 1; first PCB board 101; first lamp bead 102; second light source 2; second PCB board 201; second lamp bead 202; grid reflector 3; reflection area 301; transmission area 302; focusing module 4; first light A; second light B; convergent light C. DETAILED DESCRIPTION

[0029] The embodiment of the present invention discloses a light source assembly with multiple light aggregation and a visual detection device, which are used to solve the technical problem of insufficient illumination intensity of the existing light source assembly.

[0030] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] See also Figure 1 and Figure 2 , a light source assembly for multiple light aggregation provided by an embodiment of the present invention comprises a grid reflector 3, a first light source body 1, a second light source body 2 and a focusing module 4;

[0032] The grid reflector 3 is located above the focusing module 4 and is inclined at a certain angle to the plane where the focusing module 4 is located;

[0033] The grid reflector 3 is provided with a plurality of reflective regions 301 and transmissive regions 302 alternately;

[0034] The first light source 1 is located at one side of the grid reflector 3, and the first light emitted by the first light source 1 is irradiated into the reflection area 301 of the grid reflector 3 and is reflected by the reflection area 301 to the focusing module 4;

[0035] The second light source 2 is located above the grid reflector 3, and the second light emitted by the second light source 2 is irradiated to the transmission area 302 of the grid reflector 3 and is transmitted to the focusing module 4 through the transmission area 302;

[0036] The focusing module 4 is used to converge the first light and the second light.

[0037] In the light source assembly of the present embodiment with multiple light aggregation, the first light source body 1 is located on one side of the grid reflector 3, the first light emitted by the first light source body 1 is irradiated into the reflection area 301 of the grid reflector 3 and is reflected to the focusing module 4 through the reflection area 301, the second light source body 2 is located above the grid reflector 3, the second light emitted by the second light source body 2 is irradiated into the transmission area 302 of the grid reflector 3 and is transmitted to the focusing module 4 through the transmission area 302, and the focusing module 4 converges the first light and the second light. Through the above design, the first light and the second light are respectively emitted and transmitted through the grid reflector 3 and then converged and intersected through the focusing module 4, so that a higher light intensity is obtained at the convergence and intersection of the first light and the second light, effectively overcoming the problem of insufficient illumination emphasis of the current light source assembly, and effectively solving the problem of limited throughput and production cycle time of the visual inspection device.

[0038] Furthermore, in this embodiment, a reflective film layer is disposed on the grid reflector 3 to form the reflective region 301 , and a transmissive film layer is disposed on the grid reflector 3 to form the transmissive region 302 .

[0039] It should be noted that the transmission area 302 and the reflection area 301 in this embodiment include multiple transmission areas 302 and multiple reflection areas 301 are alternately arranged on the grid reflector 3, which can be simply understood as the reflection area 301 is arranged next to the transmission area 302, the transmission area 302 is arranged next to the reflection area 301, and so on.

[0040] Furthermore, in this embodiment, the plane where the first light source 1 is located is perpendicular to the plane where the second light source 2 is located, and the plane where the first light source 1 is located forms an angle of 45° with the plane where the grid reflector 3 is located, and the plane where the second light source 2 is located forms an angle of 45° with the plane where the grid reflector 3 is located.

[0041] It should be noted that, through the above design, the first light emitted by the first light source body 1 is reflected by the reflection area 301 of the grid reflector 3, and the reflection angle is specifically 45°; the second light emitted by the second light source is transmitted by the transmission area 302 of the grid reflector 3, and the angle between the second light and the plane where the grid reflector 3 is located is 45°. The first light and the second light are respectively reflected and transmitted by the grid reflector 3 and vertically enter the focusing module 4.

[0042] Furthermore, the focusing module 4 in this example is a double convex mirror.

[0043] It should be noted that the upper surface and the lower surface of the double convex mirror in this embodiment are both convex surfaces.

[0044] Furthermore, the first light source body 1 in this embodiment includes a first PCB board 101 and a first lamp bead 102 arranged on the first PCB board 101;

[0045] There are multiple first lamp beads 102 , and the multiple first lamp beads 102 are arranged in a straight line on the first PCB board 101 and are set at a preset distance.

[0046] It should be noted that, through the above design, the first light source 1 can emit a plurality of first light rays, and the plurality of first light rays are reflected to the focusing module 4 through the plurality of reflection areas 301 of the grid reflector 3 .

[0047] Furthermore, the second light source body 2 in this embodiment includes a second PCB board 201 and a second lamp bead 202 arranged on the second PCB board 201;

[0048] There are multiple second lamp beads 202 , and the multiple second lamp beads 202 are arranged in a straight line on the second PCB board 201 and are set at a preset distance.

[0049] It should be noted that, through the above design, the second light source 2 can emit a plurality of second light rays, and the plurality of second light rays are transmitted to the focusing module 4 through the plurality of transmission areas 302 of the grating reflector 3 .

[0050] Furthermore, the first light source body 1 in this embodiment further includes a first heat dissipation substrate, and the first heat dissipation substrate is arranged on the side of the first PCB board 101 away from the first lamp bead 102 .

[0051] It should be noted that the first heat dissipation substrate in this embodiment is configured as an aluminum metal plate with heat dissipation fins. Through the above design, the heat generated by the first lamp bead 102 during operation can be effectively transferred, so that the first lamp bead 102 is always at a suitable operating temperature, avoiding its service life being shortened due to excessively high temperature.

[0052] Furthermore, the second light source body 2 in this embodiment further includes a second heat dissipation substrate, and the second heat dissipation substrate is arranged on the side of the second PCB board 201 away from the second lamp bead 202 .

[0053] It should be noted that the second heat dissipation substrate in this embodiment is configured as an aluminum metal plate with heat dissipation fins. Through the above design, the heat generated by the second lamp bead 202 during operation can be effectively transferred, so that the second lamp bead 202 is always at a suitable operating temperature, avoiding its service life being shortened due to excessively high temperature.

[0054] See also Figure 1 and Figure 2 The present practical embodiment provides a visual inspection device, including a detection camera, a lens, and the above-mentioned light source component for multiple light aggregation.

[0055] It should be noted that, through the above design, the light emitted by the light source assembly with multiple light aggregation is irradiated onto the measured surface of the workpiece, and the light intensity is sufficient. The light reflected by the measured surface of the workpiece enters the detection camera and lens, thereby completing the imaging.

[0056] In the above-mentioned visual inspection device, the first light ray and the second light ray are respectively emitted and transmitted through the grid reflector 3 and then converged and intersected through the focusing module 4, so as to obtain a higher light intensity at the convergence and intersection of the first light ray and the second light ray, effectively overcoming the problem of insufficient illumination emphasis of the current light source component, and effectively solving the problem of limited throughput and production cycle time of the visual inspection device.

[0057] The above is a detailed introduction to a light source assembly for multiple light aggregation and a visual detection device provided by the present invention. For a person skilled in the art, according to the idea of ​​the embodiments of the present invention, there may be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A light source assembly for multiple light aggregation, characterized in that: It comprises a grid reflector (3), a first light source (1), a second light source (2) and a focusing module (4); The grid reflector (3) is located above the light focusing module (4) and is inclined at a certain angle to the plane where the light focusing module (4) is located; The grid reflector (3) is provided with a plurality of reflective areas (301) and transmissive areas (302) alternately; The first light source (1) is located on one side of the grid reflector (3), and the first light emitted by the first light source (1) is irradiated into the reflection area (301) of the grid reflector (3) and is reflected by the reflection area (301) to the focusing module (4); The second light source (2) is located above the grid reflector (3), and the second light emitted by the second light source (2) irradiates the transmission area (302) of the grid reflector (3) and is transmitted through the transmission area (302) to the focusing module (4); The focusing module (4) is used to converge the first light and the second light.

2. The light source assembly for multiple light aggregation according to claim 1, characterized in that: A reflective film layer is provided on the grid reflector (3) to form the reflective area (301).

3. The light source assembly for multiple light aggregation according to claim 2, characterized in that: A transmission film layer is provided on the grid reflector (3) to form the transmission area (302).

4. The light source assembly for multiple light aggregation according to claim 1, characterized in that: The plane where the first light source (1) is located and the plane where the second light source (2) is located are perpendicular to each other, and the plane where the first light source (1) is located and the plane where the grid reflector (3) is located form an angle of 45°, and the plane where the second light source (2) is located and the plane where the grid reflector (3) is located form an angle of 45°.

5. The light source assembly for multiple light aggregation according to claim 1, characterized in that: The focusing module (4) is a double convex mirror.

6. The light source assembly for multiple light aggregation according to claim 1, characterized in that: The first light source (1) comprises a first PCB board (101) and a first lamp bead (102) arranged on the first PCB board (101); There are a plurality of the first lamp beads (102), and the plurality of the first lamp beads (102) are arranged in a straight line on the first PCB board (101) and are spaced at a preset distance.

7. The light source assembly for multiple light aggregation according to claim 1, characterized in that: The second light source body (2) comprises a second PCB board (201) and a second lamp bead (202) arranged on the second PCB board (201); There are a plurality of the second lamp beads (202), and the plurality of the second lamp beads (202) are arranged in a straight line on the second PCB board (201) and are spaced at a preset distance.

8. The light source assembly for multiple light aggregation according to claim 6, characterized in that: The first light source body (1) further comprises a first heat dissipation substrate, which is arranged on a side of the first PCB board (101) away from the first lamp bead (102).

9. The light source assembly for multiple light aggregation according to claim 7, characterized in that: The second light source body (2) further comprises a second heat dissipation substrate, which is arranged on a side of the second PCB board (201) away from the second lamp bead (202).

10. A visual inspection device, characterized in that: The invention comprises a detection camera, a lens and a light source assembly for multiple light aggregation as claimed in any one of claims 1 to 9.

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