Pin detection device

Abstract

The utility model provides a pin detection device, and relates to the technical field of electronic device detection, and the pin detection device comprises a loading surface for placing a to-be-detected pin, a detection camera, a first light source and a second light source. The detection camera is located on one side of the loading surface in the first direction and is used for shooting the to-be-detected pin, and a lens of the detection camera faces the loading surface; the first light source and the second light source are oppositely arranged and used for providing light for the to-be-detected pin; wherein in the first direction, the first light source and the second light source are located between the detection camera and the loading surface; in the second direction, the loading surface is located between the first light source and the second light source, and the first direction is perpendicular to the second direction. The pin detection device provided by the utility model can solve the technical problem that light affects the detection precision.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electronic device detection, and more particularly to a pin detection device. BACKGROUND

[0002] There are many lines in an automobile, and the lines are usually connected by a connecting piece with a pin, such as a connector. The pin of the connector is detected by manual observation and plug-in detection, and the detection accuracy can be improved by visual detection. However, in the related art, the visual detection is easily affected by light, and uneven light affects the detection accuracy. CONTENT OF THE INVENTION

[0003] The embodiment of the application aims to provide a pin detection device to solve the technical problem of light affecting the detection accuracy in the related art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the application is:

[0005] The pin detection device comprises a loading surface for placing a pin to be detected, a detection camera, a first light source and a second light source. The detection camera is located on one side of the loading surface in a first direction and is used to take a picture of the pin to be detected. The lens of the detection camera faces the loading surface. The first light source and the second light source are oppositely arranged and are used to provide light to the pin to be detected. In the first direction, the first light source and the second light source are located between the detection camera and the loading surface. In a second direction, the loading surface is located between the first light source and the second light source, and the first direction is perpendicular to the second direction.

[0006] Through the above technical solution, the pin detection device provided by the application uses the oppositely arranged first light source and second light source to provide light to the pin to be detected, and the loading surface for placing the pin to be detected is located between the first light source and the second light source, which is beneficial to make different positions of the pin to be detected receive uniform light, beneficial to improve the shooting effect of the detection camera, beneficial to avoid the influence of light on the detection accuracy, and thus beneficial to improve the shooting accuracy.

[0007] Therefore, the pin detection device provided by the application can solve the technical problem of light affecting the detection accuracy in the related art.

[0008] In some embodiments, in the second direction, the light emitting side of the first light source is on the side where the second light source is located, and the light emitting side of the second light source is on the side where the first light source is located.

[0009] Alternatively, in the first direction, the light emitting side of the first light source and the light emitting side of the second light source are on the side where the loading surface is located.

[0010] The pin detection device provided in the application can adjust the direction of the light-emitting side of the first light source and the second light source according to the use scene, and has good applicability.

[0011] In some embodiments, the focal length of the lens of the detection camera is J, and the value range of J is 20mm≤J≤30mm. The focal length of the lens of the detection camera can be in a small range, which is beneficial to widen the field of view of the lens.

[0012] In some embodiments, the pin detection device provided in the application further comprises a light source controller connected with the first light source and the second light source respectively, for controlling the brightness of the first light source and the second light source. In this way, the light source controller can adjust the brightness of the first light source and the second light source according to the type of the pin to be detected and environmental factors, and has good applicability.

[0013] In some embodiments, the pin detection device provided in the application further comprises a support, and the detection camera, the first light source and the second light source are installed on the support, and the loading surface is located on the support. In this way, the detection camera, the first light source, the second light source and the loading surface for placing the pin to be detected can all be arranged on the support, and the integration degree is high.

[0014] In some embodiments, the support comprises a first beam, a second beam and a plurality of support columns, the support columns extend along a first direction, the first beam and the second beam are connected with the support columns, the first beam and the second beam are arranged in a spaced manner along the first direction, the detection camera is installed on the first beam, the loading surface is located on the second beam, and the first light source and the second light source are connected with different support columns. In this way, the structure of the support is simple, and the manufacturing is convenient.

[0015] In some embodiments, the support further comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is connected with one support column, the other end of the first connecting rod is connected with the first light source, one end of the second connecting rod is connected with another support column, and the other end of the second connecting rod is connected with the second light source. In this way, the first light source is connected with one support column through the first connecting rod, and the second light source is connected with another support column through the second connecting rod, which can be beneficial to suspend the first light source and the second light source, and can be beneficial to avoid the light being blocked to a certain extent.

[0016] In some embodiments, the first light source and the second light source are strip light sources; and / or, the pin is a pin of a connector; and / or, the loading surface faces the detection camera; and / or, the first direction is a vertical direction, and the loading surface is located below the detection camera; and / or, the first light source and the second light source are symmetrical about the axis of the lens of the detection camera; and / or, the pin detection device comprises a loading plate, and the loading surface is located on the loading plate.

[0017] The first light source and the second light source use a bar light source, which can improve the uniformity of light irradiation, thereby facilitating improvement of detection accuracy. The loading surface faces the detection camera, which can facilitate adjustment of the orientation of the to-be-detected pins on the loading surface to the detection camera. The loading surface is located below the detection camera, which facilitates adjustment of the orientation of the detection camera and facilitates processing of the loading surface. The first light source and the second light source are symmetrical about the axis of the lens of the detection camera, which can further facilitate uniform light irradiation on the to-be-detected pins, thereby further facilitating improvement of detection accuracy.

[0018] In some embodiments, the pin detection device provided in the present application further comprises a detection controller connected with the detection camera, the detection controller being configured to control the detection camera, acquire shooting data of the detection camera, and obtain a detection result of the to-be-detected pins according to the shooting data. The pin detection device provided in the present application is convenient to use.

[0019] In some embodiments, the pin detection device provided in the present application further comprises a display, and a screen of the display is configured to display the detection result of the to-be-detected pins. The pin detection device provided in the present application can use the display screen to display the detection result of the to-be-detected pins, thereby facilitating viewing. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 Structure schematic diagram of the pin detection device provided in the embodiments of the present application;

[0022] Figure 2 Structure schematic diagram of the pin detection device provided in the embodiments of the present application;

[0023] Figure 3 Structure schematic diagram of the connector provided in the embodiments of the present application;

[0024] Figure 4 Structure schematic diagram of the connector provided in the embodiments of the present application;

[0025] Figure 5 Detection result schematic diagram of the pin detection device provided in the embodiments of the present application;

[0026] Figure 6 Detection result schematic diagram of the pin detection device provided in the embodiments of the present application;

[0027] Figure 7 The working principle flow chart of the pin detection device provided by the embodiment of the present application is shown in the figure;

[0028] Figure 8 The working principle flow chart of the detection controller provided by the embodiment of the present application is shown in the figure.

[0029] In the figure, various reference signs are as follows:

[0030] 100-pin detection device; 10-bracket; 101-loading plate; 1011-loading surface; 11-supporting column; 12-first cross beam; 13-second cross beam; 14-first connecting rod; 15-second connecting rod; 20-detection camera; 21-lens; 31-first light source; 32-second light source; 40-light source controller; 50-detection controller; 60-display; 200-connector; 201-jack; 210-first pin; 220-second pin; 230-normal pin; 240-problem pin. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0032] It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] It should be understood that the terms “length”, “width”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0034] In addition, the terms “first” and “second” are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with “first” and “second” can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of “multiple” is two or more, unless otherwise specifically limited.

[0035] The automobile has many lines, and the lines are usually connected by using a pin component, such as a connector 200. The automobile can be a fuel automobile or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile, or the like. The line of the new energy automobile is relatively complex, especially the pure electric automobile.

[0036] The pin component such as the connector 200 needs to be detected before use to improve reliability. The pin of the connector 200 has a large error in manual observation and plug-in detection, and the detection accuracy can be improved by using visual detection. However, in the related art, the visual detection is easily affected by light, and the non-uniform light affects the detection accuracy.

[0037] Please refer to Figure 1 and Figure 2 , and the pin detection device 100 provided in the embodiments of the present application will be described.

[0038] The pin detection device 100 provided in the embodiments of the present application includes a loading surface 1011 for placing a pin to be detected, and the loading surface 1011 is used to load a pin component. Optionally, the pin component can be a connector 200, that is, the pin to be detected is the pin of the connector 200.

[0039] Optionally, the pin detection device 100 provided in the embodiments of the present application includes a loading plate 101, and the loading surface 1011 can be located on the loading plate 101. In this way, the loading plate 101 can be installed on different support mechanisms, and the loading surface 1011 does not need to be additionally processed.

[0040] Optionally, the pin detection device 100 provided in the embodiments of the present application further includes a detection camera 20, and the detection camera 20 is located on one side of the loading surface 1011 in a first direction (such as a Y direction in Figure 1 The detection camera 20 is used to shoot the pin to be detected, and a lens 21 of the detection camera 20 faces the loading surface 1011.

[0041] It can be understood that the loading surface 1011 can face the detection camera 20, that is, a normal direction of the loading surface 1011 is consistent with an axial direction of the lens 21 of the detection camera 20. In this way, it is beneficial to adjust the orientation of the pin to be detected on the loading surface 1011 to face the detection camera 20.

[0042] Optionally, a center line of the loading surface 1011 coincides with an axial line of the lens 21 of the detection camera 20.

[0043] Optionally, the loading surface 1011 can also not face the detection camera 20, for example, the normal direction of the loading surface 1011 intersects with the axial direction of the lens 21 of the detection camera 20. Optionally, the normal direction of the loading surface 1011 is perpendicular to the axial direction of the lens 21 of the detection camera 20.

[0044] That is, the normal direction of the loading surface 1011 can be specifically set according to a use scenario, and the applicability is good.

[0045] Optionally, the pin detection device 100 provided by the embodiment of the present application further includes a first light source 31 and a second light source 32, the first light source 31 and the second light source 32 are oppositely arranged, and are used to provide light to the pin to be detected. Wherein, along a first direction, the first light source 31 and the second light source 32 are located between the detection camera 20 and the loading surface 1011; along a second direction (such as Figure 1 X direction in the figure), the loading surface 1011 is located between the first light source 31 and the second light source 32, and the first direction is perpendicular to the second direction.

[0046] Through the above technical solution, the pin detection device 100 provided by the embodiment of the present application uses the oppositely arranged first light source 31 and second light source 32 to respectively provide light to the pin to be detected, and the loading surface 1011 used to place the pin to be detected is located between the first light source 31 and the second light source 32, which is beneficial to make different positions of the pin to be detected receive uniform light, is beneficial to improve the shooting effect of the detection camera 20, is beneficial to avoid the influence of light on the detection precision, and thus is beneficial to improve the shooting precision.

[0047] Therefore, the pin detection device 100 provided by the embodiment of the present application can solve the technical problem of light affecting the detection precision in the related art.

[0048] Optionally, the first direction is a vertical direction, and the loading surface 1011 is located below the detection camera 20, so that the loading surface 1011 located below the detection camera 20 is beneficial to adjust the orientation of the detection camera 20 and is beneficial to process the loading surface 1011.

[0049] Optionally, the first light source 31 and the second light source 32 are symmetrical about the axis of the lens 21 of the detection camera 20, which can further facilitate the pin to be detected to receive uniform light, thereby further facilitating the improvement of the detection precision.

[0050] In some embodiments, along the second direction, the light emitting side of the first light source 31 is the side where the second light source 32 is located, and the light emitting side of the second light source 32 is the side where the first light source 31 is located.

[0051] In some other embodiments, along the first direction, the light emitting side of the first light source 31 and the light emitting side of the second light source 32 are the side where the loading surface 1011 is located.

[0052] It can be understood that in the above embodiment, the light of the first light source 31 and the second light source 32 can irradiate the loading surface 1011 and the connector 200 loaded on the loading surface 1011, and the positions of the light emitting side of the first light source 31 and the light emitting side of the second light source 32 can be specifically selected according to the use scene. That is, the pin detection device 100 provided in the embodiment of the application can adjust the direction of the light emitting side of the first light source 31 and the second light source 32 according to the use scene, and has good applicability.

[0053] In some embodiments, the focal length of the lens 21 of the detection camera 20 is J, and the value range of J can be 20mm≤J≤30mm. In this way, the focal length of the lens 21 of the detection camera 20 can be in a small range, which is beneficial to widen the field of view of the lens 21.

[0054] Optionally, the value range of J can be 20mm≤J≤23mm. Optionally, the value range of J can be 23mm≤J≤27mm. Optionally, the value range of J can be 27mm≤J≤30mm.

[0055] Optionally, the value range of J can be 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm, etc.

[0056] Please continue to refer to Figure 1 and Figure 2 In some embodiments, the pin detection device 100 provided in the embodiment of the application further includes a light source controller 40, the light source controller 40 is connected with the first light source 31 and the second light source 32 respectively, and is used for controlling the brightness of the first light source 31 and the second light source 32. In this way, the light source controller 40 can adjust the brightness of the first light source 31 and the second light source 32 according to the type of the pin to be detected and environmental factors, and has good applicability.

[0057] In some embodiments, the pin detection device 100 provided in the embodiment of the application further includes a support 10, and the detection camera 20, the first light source 31 and the second light source 32 are installed on the support 10.

[0058] Optionally, the support 10 can include a loading plate 101, and the loading surface 1011 is located in the support 10.

[0059] In this way, the detection camera 20, the first light source 31, the second light source 32 and the loading surface 1011 for placing the pin to be detected can be arranged on the support 10, and the integration degree is high.

[0060] Optionally, the support 10 comprises a first cross beam 12, a second cross beam 13 and a plurality of support columns 11, the support columns 11 extend along a first direction, the first cross beam 12 and the second cross beam 13 are connected with the support columns 11, the first cross beam 12 and the second cross beam 13 are arranged in the first direction at intervals, the detection camera 20 is mounted on the first cross beam 12, the loading surface 1011 is located on the second cross beam 13, the first light source 31 and the second light source 32 are connected with different support columns 11. In this way, the support 10 has a simple structure and is convenient to manufacture.

[0061] Optionally, the support 10 further comprises a first connecting rod 14 and a second connecting rod 15, one end of the first connecting rod 14 is connected with one support column 11, the other end of the first connecting rod 14 is connected with the first light source 31, one end of the second connecting rod 15 is connected with another support column 11, the other end of the second connecting rod 15 is connected with the second light source 32. In this way, the first light source 31 is connected with one support column 11 through the first connecting rod 14, and the second light source 32 is connected with another support column 11 through the second connecting rod 15, so that the first light source 31 and the second light source 32 can be arranged in suspension, which can to some extent help to avoid the light being blocked.

[0062] Optionally, the first light source 31 and the second light source 32 can be strip-shaped light sources, which can improve the uniformity of light irradiation, thereby helping to improve the detection accuracy.

[0063] In some embodiments, the pin detection device 100 provided by the embodiment of the application further comprises a detection controller 50, the detection controller 50 is connected with the detection camera 20, the detection controller 50 is used for controlling the detection camera 20, acquiring shooting data of the detection camera 20, and obtaining a detection result of the to-be-detected pin according to the shooting data. In this way, the pin detection device 100 provided by the embodiment of the application is convenient to use.

[0064] Optionally, referring to Figure 3 and Figure 4 , the connector 200 can comprise one or more sockets 201, and the socket 201 of the connector 200 can comprise one or more pins. For example, the pins of the connector 200 comprise a first pin 210 and a second pin 220.

[0065] Referring to Figure 5 and Figure 6 , it can be understood that the detection controller 50 can distinguish the normal pin 230 and the problem pin 240 through calculation and comparison, so as to detect the problem pin 240.

[0066] Optionally, the pin detection device 100 provided by the embodiment of the application further comprises a display 60, and a screen of the display 60 is used for displaying the detection result of the to-be-detected pin, so as to facilitate viewing of the detection result.

[0067] Optionally, the display 60 is connected with the detection controller 50. For example, in the picture displayed by the display 60, it can be seen that Figure 5 In the detection result shown, the pins are all normal pins 230. For example, in the picture displayed by the display 60, it can be seen that Figure 6 In the detection result shown, there is a problem pin 240.

[0068] It can be understood that the pin detection device 100 provided by the embodiments of the present application can detect the connector 200 and other parts with pins, so as to detect whether the pins of the connector 200 and other parts with pins are abnormal. When the pins of the connector 200 and other parts with pins are abnormal, the connector 200 and other parts with pins are unqualified.

[0069] Optionally, the pin detection device 100 provided by the embodiments of the present application can further be provided with an alarm, which can alarm when detecting an abnormality.

[0070] Optionally, the alarm is connected with the detection controller 50.

[0071] Please refer to Figures 1 to 7 The pin detection device 100 provided by the embodiments of the present application initializes the equipment first when working, then loads the parts, loads the connector 200 and other parts with pins to the loading surface 1011, wherein the pins are towards the detection camera 20. The detection camera 20 can take pictures of the pins and the connector 200, and the detection controller 50 can acquire the shooting data (pictures) of the detection camera 20 and perform visual detection, so as to determine whether the connector 200 is qualified. If qualified, the connector 200 can be installed, and if unqualified, the connector 200 and corresponding data can be archived, and an alarm can also be performed.

[0072] Please refer to Figures 1 to 8 The detection controller 50 provided by the embodiments of the present application uses the stored template matching algorithm to position the position and angle of the connector 200 and other parts with pins when working, and then corrects the position of the parts in the image by using the position and angle, so as to avoid errors in positioning. The detection controller 50 performs morphological processing first when detecting, removes image noise, then performs pin detection, performs binaryzation processing on the image region of interest, and acquires the position of the pin end reflection point. Finally, the detection controller 50 calculates the offset error of the pin from the standard position according to the position of the pin, and determines whether it is qualified. The detection controller 50 can control the display 60 to display the detection result on the screen.

[0073] The above only describes specific embodiments of the present application and does not limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pin detection device, characterized by, The pin detection device comprises: a loading surface for placing a pin to be detected; a detection camera located on one side of the loading surface in a first direction for shooting the pin to be detected, a lens of the detection camera facing the loading surface; a first light source and a second light source oppositely arranged for providing light to the pin to be detected; wherein, along the first direction, the first light source and the second light source are located between the detection camera and the loading surface; along a second direction, the loading surface is located between the first light source and the second light source, and the first direction is perpendicular to the second direction.

2. The pin detection apparatus of claim 1, wherein along the second direction, an out-light side of the first light source is on the side where the second light source is located, and an out-light side of the second light source is on the side where the first light source is located; alternatively, along the first direction, the out-light side of the first light source and the out-light side of the second light source are on the side where the loading surface is located.

3. The pin detection apparatus of claim 1, wherein The focal length of the lens of the detection camera is J, and the value range of J is 20mm≤J≤30mm.

4. The pin detection apparatus of claim 1, wherein The pin detection device further comprises a light source controller connected with the first light source and the second light source respectively for controlling the brightness of the first light source and the second light source.

5. The pin detection apparatus of any one of claims 1 to 4, wherein The pin detection device further comprises a bracket, the detection camera, the first light source and the second light source are installed on the bracket, and the loading surface is located on the bracket.

6. The pin detection apparatus of claim 5, wherein The bracket comprises a first cross beam, a second cross beam and a plurality of support columns, the support columns extend along the first direction, the first cross beam and the second cross beam are connected with the support columns, the first cross beam and the second cross beam are arranged in the first direction, the detection camera is installed on the first cross beam, the loading surface is located on the second cross beam, and the first light source and the second light source are connected with different support columns.

7. The pin detection apparatus of claim 6, wherein The bracket further comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is connected with one of the support columns, the other end of the first connecting rod is connected with the first light source, one end of the second connecting rod is connected with another of the support columns, and the other end of the second connecting rod is connected with the second light source.

8. The pin detection apparatus of any one of claims 1 to 4, wherein The first light source and the second light source are strip-shaped light sources; and / or, the pin is a pin of a connector; and / or, the loading surface faces the detection camera; and / or, the first direction is a vertical direction, and the loading surface is located below the detection camera; and / or, the first light source and the second light source are symmetrical about the axis of the lens of the detection camera; and / or, the pin detection device comprises a loading plate, and the loading surface is located on the loading plate.

9. The pin detection apparatus of any one of claims 1 to 4, wherein, The pin detection device further comprises a detection controller connected with the detection camera, the detection controller is used for controlling the detection camera, acquiring shooting data of the detection camera, and obtaining a detection result of the pin to be detected according to the shooting data.

10. The pin detection apparatus of any one of claims 1 to 4, wherein The pin detection device further comprises a display screen for displaying the detection result of the pin to be detected.

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