Light source detection device

Abstract

The utility model discloses a light source detection device which comprises a light source assembly, a diffusion piece, a light condensation piece, a blanking piece and a detection assembly, the light source assembly comprises a first light source and a second light source, light emitted by the first light source irradiates the surface of a workpiece through the diffusion piece, and light emitted by the second light source irradiates the high-reflection part of the workpiece through the light condensation piece. The detection assembly detects workpieces according to reflected light of the first light source and the second light source, and the discharging piece sorts the workpieces according to detection results of the detection assembly. The first light source uniformly irradiates on the surface of the workpiece, the situation that reflected light of a high-reflection part enters the detection assembly to affect image recognition is weakened, and the detection assembly can detect whether scratches or character printing exist on the surface of the workpiece or not according to the reflected light of the first light source; the second light source can irradiate the high-reflection part of the workpiece after light condensation, the detection assembly can detect whether the high-reflection part of the workpiece has defects or not according to reflected light of the second light source, and the workpieces can be automatically sorted through the discharging part.

Description

Technical Field

[0001] The utility model relates to the technical field of light sources, in particular to a light source detection device. Background Art

[0002] With the upgrading of consumption and the development of technology, electronic products are being iterated every year, and the electronic components that go with them are also being constantly updated. To ensure production quality, electronic components need to be visually inspected. Due to the variety and different shapes of electronic components, machine vision tests each of the different inspection items, such as the dimensional accuracy of electronic components, surface appearance defects, surface character barcode printing, PIN needle length and appearance defects, in different processes or different workstations. Many light source detection devices are required, the investment cost is high, and the quality inspection production efficiency is low, which cannot meet the production inspection needs of high speed, high efficiency and low cost.

[0003] Therefore, it is necessary to improve the existing technology to solve the problem that the light source detection equipment in the existing technology cannot be compatible with the detection of multiple detection items of electronic components at the same time and has low versatility. Utility Model Content

[0004] The utility model aims to provide a light source detection device to solve the technical problem that the light source detection equipment in the prior art cannot be compatible with the detection of multiple detection items of electronic components at the same time and has low versatility.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A light source detection device comprises a light source assembly, a diffuser, a condenser, a blanking piece and a detection assembly, wherein the light source assembly comprises a first light source and a second light source, the light emitted by the first light source irradiates the surface of a workpiece through the diffuser, the light emitted by the second light source irradiates the high-reflective portion of the workpiece through the condenser, the detection assembly detects the workpiece based on the reflected light of the first light source and the second light source, and the blanking piece sorts the workpiece based on the detection result of the detection assembly.

[0007] Preferably, the light source detection further includes a carrying platform for carrying the workpiece, and the light source assembly further includes a third light source, and the third light source is disposed in the carrying platform, and the light emitted by the third light source passes through the workpiece and then irradiates the detection assembly.

[0008] Preferably, the detection component includes a first collection unit and a detection member, the light source component is provided with a window, the light emitted by the third light source, the reflected light of the first light source and the reflected light of the second light source reach the first collection unit through the window, and the detection member is electrically connected to the first collection unit.

[0009] Preferably, the detection component includes a second collection unit, the light source also includes a fourth light source, the light emitted by the fourth light source illuminates the PIN pins of the workpiece, and the second collection unit receives the reflected light of the fourth light source and is electrically connected to the detection component.

[0010] Preferably, the first light source includes an infrared light board and an annular RGB light board, the diffuser includes a first diffuser plate and an annular diffuser plate, the light emitted by the infrared light board irradiates the surface of the workpiece through the first diffuser plate, and the light emitted by the annular RGB light board irradiates the surface of the workpiece through the annular diffuser plate.

[0011] Preferably, the light source assembly also includes a top plate, a bottom plate, an adapter ring, a connecting plate and a plurality of connecting parts, the top plate is provided with the window, the infrared lamp board and the first diffusion plate are connected to the top plate, the connecting parts connect the top plate, the annular diffusion plate, the adapter ring and the connecting plate, the second light source is arranged between the connecting plate and the bottom plate, and the connecting plate is connected to the bottom plate.

[0012] Preferably, the bottom plate is provided with a first opening and two second openings, the second collection unit is connected to the fourth light source through the first opening, and the two second openings are communicated with each other and arranged opposite to each other to form a feeding channel.

[0013] Preferably, the light source detection device also includes a transparent plate and a driver, the support platform is provided with a receiving groove, the third light source is placed in the receiving groove, the transparent plate seals the receiving groove, the driver is electrically connected to the detection component, and drives the support platform to move along the feeding channel.

[0014] Preferably, the light source detection device also includes a power cord assembly, which includes a first power cord, a second power cord, a third power cord and a fourth power cord, the first power cord is connected to the first light source, the second power cord is connected to the second light source, the third power cord is connected to the third light source, and the fourth power cord is connected to the fourth light source.

[0015] Preferably, the light source detection device further comprises a loading piece, the support platform is connected with a positioning unit, the positioning unit is electrically connected to the loading piece and the unloading piece, and the loading piece is used to place an undetected workpiece on the support platform.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model designs a light source detection device, which includes a light source assembly, a diffuser, a condenser, a blanking piece and a detection assembly. The light source assembly includes a first light source and a second light source. The light emitted by the first light source irradiates the surface of the workpiece through the diffuser, and the light emitted by the second light source irradiates the high-reflective part of the workpiece through the condenser. The detection assembly detects the workpiece according to the reflected light of the first light source and the second light source, and the blanking piece sorts the workpiece according to the detection result of the detection assembly. The first light source of the utility model evenly irradiates the surface of the workpiece, weakening the reflected light of the high-reflective part entering the detection piece to affect image recognition. The detection assembly can detect whether there are scratches or character printing on the surface of the workpiece according to the reflected light of the first light source. The second light source can irradiate the high-reflective part of the workpiece after condensing. The detection assembly can detect whether the high-reflective part of the workpiece is defective according to the reflected light of the second light source. After the detection is completed, the blanking piece can sort the workpiece according to the detection result without manual screening. The light source detection device of the utility model can be compatible with the detection of multiple items of the workpiece at the same time, and can perform automatic sorting. Compared with the existing technology, it has a high degree of automation and greatly improves versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an exploded diagram of the light source detection device of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the light source detection device of the utility model;

[0020] Figure 3 It is a cross-sectional view of the light source detection device of the utility model.

[0021] Illustrations: 1. Camera; 2. Window; 3. Top plate; 4. Infrared light board; 5. First diffusion plate; 6. Ring-shaped RGB light board; 7. Ring-shaped diffusion plate; 8. Adapter ring; 9. Connecting plate; 10. Focusing RGB light board; 11. Focusing prism ring; 12. Bottom plate; 13. Laser camera; 14. Power cord assembly; 15. Second opening; 16. Workpiece; 17. Transparent plate; 18. Fourth light source. DETAILED DESCRIPTION

[0022] In order to make the utility model's purpose, features, and advantages more obvious and easy to understand, the following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the embodiments described below are only part of the utility model embodiments, 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.

[0023] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0024] See also Figure 1-Figure 3 As shown, the utility model designs a light source detection device, which includes a light source assembly, a diffuser, a focusing piece, a blanking piece and a detection assembly. The light source assembly includes a first light source and a second light source. The light emitted by the first light source irradiates the surface of the workpiece 16 through the diffuser, and the light emitted by the second light source irradiates the high-reflective portion of the workpiece 16 through the focusing piece. The detection assembly detects the workpiece 16 based on the reflected light of the first light source and the second light source, and the blanking piece sorts the workpiece 16 based on the detection result of the detection assembly.

[0025] It should be noted that the first light source of the utility model evenly irradiates the surface of the workpiece 16, weakening the reflected light of the high-reflective part entering the detection part to affect image recognition. The detection component can detect whether there are scratches or character printing on the surface of the workpiece 16 according to the reflected light of the first light source. The second light source can irradiate the high-reflective part of the workpiece 16 after focusing. The detection component can detect whether the high-reflective part of the workpiece 16 is defective according to the reflected light of the second light source. After the detection is completed, the blanking parts can sort the workpiece 16 according to the detection results without manual screening. The light source detection device of the utility model can be compatible with the detection of multiple items of the workpiece 16 at the same time, and can perform automatic sorting. Compared with the existing technology, it has a high degree of automation and greatly improved versatility.

[0026] Specifically, the second light source includes a focusing RGB light board 10 and a high-transmittance projection-enhancing film. The focusing component is a focusing prism ring 11. The high-transmittance projection-enhancing film is plated on the focusing RGB light board 10, which can reduce the loss of the second light source. The surface of the focusing prism ring 11 is sprayed with a diffuse reflector. The light emitted by the second light source is focused by the focusing prism and evenly irradiated to the high-reflective part of the workpiece 16 through the diffuse reflector, which can detect whether there are scratches, unevenness or other defects on the high-reflective part of the workpiece 16.

[0027] Specifically, the light source detection also includes a carrier platform for carrying the workpiece 16, and the light source assembly also includes a third light source, which is arranged in the carrier platform. The light emitted by the third light source passes through the workpiece 16 and then irradiates the detection assembly.

[0028] The light direction of the third light source of the utility model is vertical. The third light source can project the workpiece 16 onto the detection component. The detection component can detect the size of the workpiece 16 based on the projection of the workpiece 16. The detection component of the utility model is provided with a first preset interval. When the size of the workpiece 16 is within the first preset interval, the size detection of the workpiece 16 is qualified. Of course, it should be noted that people can set the parameters of the first preset interval by themselves, and the utility model does not limit this.

[0029] Specifically, the detection component includes a first collection unit and a detection component. The light source component is provided with a window 2. The light emitted by the third light source, the reflected light of the first light source and the reflected light of the second light source reach the first collection unit through the window 2. The detection component is electrically connected to the first collection unit.

[0030] Specifically, the detection component includes a second collection unit, the light source also includes a fourth light source 18, the light emitted by the fourth light source 18 irradiates the PIN pins of the workpiece 16, and the second collection unit receives the reflected light of the fourth light source 18 and is electrically connected to the detection component.

[0031] It should be noted that the first acquisition unit of the utility model is a camera 1, the second acquisition unit and the fourth light source 18 are integrated into a laser camera 13, the detection component is an image processing software, the image processing software is provided with a database, and the database stores various defect conditions of the workpiece 16. After the first acquisition unit has acquired the data, it can be sent to the image processing software. The image processing software compares it with the various defect conditions in the database one by one to determine whether there are defects on the surface or high-reflective part of the workpiece 16, and whether the size of the workpiece 16 is qualified. The fourth light source 18 illuminates the two pins of the PIN needle of the workpiece 16. After the second acquisition unit has acquired the data, it can be sent to the image processing software. The image processing software determines the consistency of the height of the two pins of the PIN needle, the consistency of the bending angle and the consistency of the spacing based on the reflected light of the fourth light source 18.

[0032] Specifically, the first light source includes an infrared light board 4 and an annular RGB light board 6, and the diffuser includes a first diffuser plate 5 and an annular diffuser plate 7. The light emitted by the infrared light board 4 irradiates the surface of the workpiece 16 through the first diffuser plate 5, and the light emitted by the annular RGB light board 6 irradiates the surface of the workpiece 16 through the annular diffuser plate 7.

[0033] The annular diffusion plate 7 of the utility model evenly scatters the light emitted by the annular RGB light board 6 to the surface of the workpiece 16, forming a highly enveloping annular shadowless lighting, so that the reflection intensity of the different three-dimensional slopes of the entire workpiece 16 tends to be softer, and the interference of the high-reflective part of the workpiece 16 is weakened. The infrared light board 4 can make up for the problem that the workpiece 16 with a dark background is difficult to detect.

[0034] Specifically, the light source assembly also includes a top plate 3, a bottom plate 12, an adapter ring 8, a connecting plate 9 and a number of connecting parts. The top plate 3 is provided with a window 2. The infrared light board 4 and the first diffusion plate 5 are connected to the top plate 3. The connecting parts connect the top plate 3, the annular diffusion plate 7, the adapter ring 8 and the connecting plate 9. The second light source is arranged between the connecting plate 9 and the bottom plate 12. The connecting plate 9 is connected to the bottom plate 12.

[0035] During assembly, the first diffusion plate 5 and the infrared light board 4 are locked on the top plate 3 by using the connecting piece. The adapter ring 8 is provided with an avoidance opening so that one end of the annular diffusion plate 7 passes through the avoidance opening, and the annular RGB light board 6 is arranged outside the annular diffusion plate 7. The connecting piece passes through the top plate 3, the annular diffusion plate 7, the adapter ring 8 and the connecting plate 9 in sequence, so that the first light source can be locked on the connecting plate 9. The focusing RGB light board 10 is close to the connecting plate 9 and is arranged on the outer periphery of the focusing prism ring 11. The second light source is limited between the bottom plate 12 and the connecting plate 9. The connecting piece connects the bottom plate 12 and the connecting plate 9. The connecting piece is a bolt. Of course, it should be noted that in actual applications, people can also choose other devices as connecting pieces, and the assembly of the light source assembly can be achieved by other means. The utility model does not limit this.

[0036] Specifically, the bottom plate 12 is provided with a first opening and two second openings 15 , the second collection unit is connected to the fourth light source 18 , and through the first opening, the two second openings 15 are connected and arranged opposite to each other to form a feeding channel.

[0037] Specifically, the light source detection device also includes a transparent plate 17 and a driver. The support platform is provided with a receiving groove. The third light source is placed in the receiving groove. The transparent plate 17 seals the receiving groove. The driver is electrically connected to the detection component and drives the support platform to move along the feeding channel.

[0038] Specifically, the light source detection device also includes a loading piece, the support platform is connected to a positioning unit, the positioning unit is electrically connected to the loading piece, the unloading piece, the detection piece and the driver, and the loading piece is used to place the undetected workpiece 16 on the support platform.

[0039] The carrying platform of the utility model is a conveyor belt, and the carrying platform is provided with a detection area. The detection area of ​​the carrying platform is provided with a positioning unit. When the detection area of ​​the carrying platform moves to the bottom of the loading part, information can be sent to the loading part, and the loading part grabs the undetected workpiece 16 to the detection area. The detection area of ​​the carrying platform moves to the bottom of the detection part, and information can be sent to the driver and the detection part. The driver is turned off, and the detection part is started for detection. After the detection is completed, the detection part sends a signal to the driver, and the driver is started. The detection area of ​​the carrying platform moves in a direction close to the unloading part. When it moves to the bottom of the unloading part, the unloading part grabs the workpiece 16 to the good product area or the defective product area according to the detection result, so as to realize the sorting of the workpiece 16.

[0040] Specifically, the light source detection device further includes a power cord assembly 14, the power cord assembly 14 includes a first power cord, a second power cord, a third power cord and a fourth power cord, the first power cord is connected to the first light source, the second power cord is connected to the second light source, the third power cord is connected to the third light source, and the fourth power cord is connected to the fourth light source 18. The first light source, the second light source, the third light source and the fourth light source 18 can all be independently controlled, and people can select the start-up status of the light source assembly according to their own needs.

[0041] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "left", "right", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0042] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A light source detection device, characterized in that: The invention comprises a light source assembly, a diffuser, a condenser, a blanking assembly and a detection assembly, wherein the light source assembly comprises a first light source and a second light source, the light emitted by the first light source irradiates the surface of a workpiece through the diffuser, the light emitted by the second light source irradiates the high-reflective part of the workpiece through the condenser, the detection assembly detects the workpiece according to the reflected light of the first light source and the second light source, and the blanking assembly sorts the workpiece according to the detection result of the detection assembly.

2. The light source detection device according to claim 1, characterized in that: It also includes a carrying platform for carrying the workpiece, and the light source assembly also includes a third light source, which is arranged in the carrying platform. The light emitted by the third light source passes through the workpiece and then irradiates the detection assembly.

3. The light source detection device according to claim 2, characterized in that: The detection component includes a first collection unit and a detection member. The light source component is provided with a window. The light emitted by the third light source, the reflected light of the first light source and the reflected light of the second light source reach the first collection unit through the window. The detection member is electrically connected to the first collection unit.

4. The light source detection device according to claim 3, characterized in that: The detection component includes a second collection unit, the light source also includes a fourth light source, the light emitted by the fourth light source illuminates the PIN pins of the workpiece, and the second collection unit receives the reflected light of the fourth light source and is electrically connected to the detection member.

5. The light source detection device according to claim 4, characterized in that: The first light source includes an infrared light board and an annular RGB light board, and the diffuser includes a first diffuser plate and an annular diffuser plate. The light emitted by the infrared light board irradiates the surface of the workpiece through the first diffuser plate, and the light emitted by the annular RGB light board irradiates the surface of the workpiece through the annular diffuser plate.

6. The light source detection device according to claim 5, characterized in that: The light source assembly also includes a top plate, a bottom plate, an adapter ring, a connecting plate and a plurality of connecting parts. The top plate is provided with the window. The infrared lamp board and the first diffusion plate are connected to the top plate. The connecting parts connect the top plate, the annular diffusion plate, the adapter ring and the connecting plate. The second light source is arranged between the connecting plate and the bottom plate. The connecting plate is connected to the bottom plate.

7. The light source detection device according to claim 6, characterized in that: The bottom plate is provided with a first opening and two second openings. The second collection unit is connected to the fourth light source through the first opening. The two second openings are communicated with each other and are arranged opposite to each other to form a feeding channel.

8. The light source detection device according to claim 7, characterized in that: It also includes a transparent plate and a driver. The support platform is provided with a receiving groove. The third light source is placed in the receiving groove. The transparent plate seals the receiving groove. The driver is electrically connected to the detection element and drives the support platform to move along the feeding channel.

9. The light source detection device according to claim 4, characterized in that: It also includes a power cord assembly, which includes a first power cord, a second power cord, a third power cord and a fourth power cord, the first power cord is connected to the first light source, the second power cord is connected to the second light source, the third power cord is connected to the third light source, and the fourth power cord is connected to the fourth light source.

10. The light source detection device according to claim 2, characterized in that: It also includes a loading piece, the support platform is connected to a positioning unit, the positioning unit is electrically connected to the loading piece and the unloading piece, and the loading piece is used to place an undetected workpiece on the support platform.

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