Detection equipment for judging terminal installation direction by using mechanical vision

Abstract

The utility model relates to the technical field of detecting the installation direction of a terminal by utilizing optics, in particular to detection equipment for judging the installation direction of the terminal by utilizing mechanical vision. The image acquisition component is arranged on one side of the moving component and can shoot and acquire a to-be-verified image, and the shooting direction is perpendicular to the mounting direction of the female terminal; a plurality of detection parts which correspond to the pins with different installation directions and are slidably arranged on the moving part along the installation direction of the female terminal; the power component is used for driving the moving component to move; the image processing terminal stores a reference image for mounting the female terminal and is used for receiving the to-be-verified image and comparing the reference image with the to-be-verified image; according to the utility model, a clear image to be verified can be obtained, the installation orientation of the internal pin of the female terminal can be rapidly judged, and the visual comparison efficiency of the installation orientation of the internal pin of the female terminal is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of utilizing optics to detect the installation direction of a terminal, in particular to a detection device utilizing mechanical vision to determine the installation direction of a terminal. Background Art

[0002] In electrical engineering, terminals mostly refer to wiring terminals, also called wiring terminals, which are mainly used to transmit electrical signals or conduct electricity. Usually, when installing female terminals on connectors, there are two types of female terminals, namely, forward installation and reverse installation, depending on the different installation directions of the pins inside the female terminals. After completing the installation of the female terminals, it is also necessary to visually inspect the installation direction of the pins of the female terminals on the connector to ensure that they meet the design specifications.

[0003] Although, with the development of technology, most existing factories have introduced CCD industrial cameras, which can realize automatic detection by taking pictures of female terminals with CCD industrial cameras, replacing the traditional manual visual inspection work; however, in most connectors, the female terminals are usually embedded and installed inside the connector, and CCD industrial cameras can only take pictures of the pins along the installation direction of the female terminals; and the pins inside the female terminals will be shielded by the female terminals themselves, and the light inside the female terminals is limited, which is not conducive to CCD industrial camera shooting, reducing the efficiency of subsequent visual comparison. Utility Model Content

[0004] In view of the above problems, the utility model provides a detection device that uses machine vision to determine the installation direction of the terminal, and its purpose is to quickly determine the installation direction of the pins inside the female terminal and improve the comparison efficiency.

[0005] In order to achieve the above-mentioned invention object, the technical solution adopted by the utility model is as follows:

[0006] Provided is a detection device for determining the installation direction of a terminal by using mechanical vision, comprising: a moving component capable of performing linear reciprocating motion along the installation direction of a female terminal; an image acquisition component arranged at one side of the moving component, capable of photographing and collecting an image to be verified, and the photographing direction of the image acquisition component is perpendicular to the installation direction of the female terminal; a plurality of detection components corresponding to pins of different installation orientations, slidably arranged on the moving component along the installation direction of the female terminal; wherein one end of the detection component can enter the female terminal and abut against the pin; the other end of the detection component can protrude from the moving component for the image acquisition component to photograph and collect the image to be verified; a power component for driving the moving component to move; and an image processing terminal storing a reference image of the installation of the female terminal, for receiving the image to be verified, and comparing the reference image with the image to be verified.

[0007] Furthermore, the device also includes: an installation through hole, which is opened in the movable component along the installation direction of the female terminal for the installation of the detection component; a slide groove, which is opened on the inner wall surface of the installation through hole along the installation direction of the female terminal; an installation shaft, which is arranged on the detection component; a bearing, the inner ring of the bearing is arranged on the installation shaft, and the outer ring of the bearing can be rotatably arranged in the slide groove.

[0008] Furthermore, the detection component comprises: an abutment component and a carrier body installed in a stepped manner, the abutment component is used for contacting the pins, and the carrier body is arranged in the moving component.

[0009] Furthermore, the device also includes: a limiting cover plate, which is arranged on the moving component and is located on the side of the moving component close to the female terminal, and is used to limit the travel of the carrier body; a reset component, which is located on the side of the moving component away from the female terminal, and is used to resist the carrier body from resetting to the moving component.

[0010] Furthermore, the device also includes: an abutment head made of rubber, which is arranged on the abutment component and is used for contacting the pins.

[0011] Furthermore, the device also includes a light source, which is arranged on the same side as the image acquisition component and is used to provide supplementary light to the moving component.

[0012] Furthermore, the power component includes: an electric push rod, a push rod of the electric push rod is connected to the moving component; and a servo motor, an output shaft of the servo motor is transmission-connected to the electric push rod.

[0013] The beneficial effects of the utility model are as follows: in the utility model, by designing the detection component, the actual installation situation of the pins inside the concave female terminal can be converted into the actual observation situation of the detection component convex on the moving component, which is convenient for subsequent image acquisition work; the end of the detection component away from the terminal will not be blocked and will be completely exposed to the shooting area of ​​the image acquisition component. The image acquisition component can shoot the detection component along the installation direction perpendicular to the female terminal, and can obtain a clear image to be verified, and can quickly determine the installation direction of the pins inside the female terminal, thereby improving the visual comparison efficiency of the installation direction of the pins inside the female terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the overall structure of the detection device provided in an embodiment of the present application.

[0015] Figure 2 for Figure 1 A partial enlarged schematic diagram of part A.

[0016] Figure 3 A schematic diagram of the internal structure of the moving parts provided in an embodiment of the present application.

[0017] Among them, 1. Connector; 11. Female terminal; 12. Pin; 2. Image acquisition component; 21. Image processing terminal; 3. Moving component; 4. Detection component; 41. Loading body; 42. Resistance component; 43. Low joint; 5. Electric push rod; 61. Mounting through hole; 62. Slide groove; 63. Mounting shaft; 64. Bearing; 71. Limit cover; 72. Reset component; 8. Light source. DETAILED DESCRIPTION

[0018] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Reference Figure 1 As shown, the embodiment of the present application discloses a detection device for determining the installation direction of a terminal by using mechanical vision, comprising: a moving component 3, capable of performing linear reciprocating motion along the installation direction of a female terminal 11; an image acquisition component 2, arranged on one side of the moving component 3, capable of photographing and collecting an image to be verified, and the shooting direction of the image acquisition component 2 is perpendicular to the installation direction of the female terminal 11; a plurality of detection components 4, corresponding to pins 12 with different installation orientations, are slidably arranged on the moving component 3 along the installation direction of the female terminal 11; wherein one end of the detection component 4 can enter into the female terminal 11 and abut against the pin 12; the other end of the detection component 4 can protrude out of the moving component 3 for the image acquisition component 2 to photograph and collect the image to be verified; a power component, used to drive the moving component 3 to move; an image processing terminal 21, storing a reference image of the installation of the female terminal 11, used to receive the image to be verified, and compare the reference image with the image to be verified.

[0020] Reference Figure 2 As shown, in the initial state, one end of the detection component 4 close to the female terminal 11 protrudes from the moving component 3 to a certain height, and the end of the detection component 4 away from the female terminal 11 is embedded in the moving component 3; the power component is started, driving the moving component 3 to move close to the connector 1 along the installation direction of the female terminal 11 until the detection component 4 is inserted into the female terminal 11; part of the detection component 4 abuts the pin 12, and the pin 12 pushes the other end of the detection component 4 out of the moving component 3 to a certain height; part of the detection component 4 is empty and does not abut against the pin 12, and the other end of the empty detection component 4 is still in the moving component 3; the image acquisition component 2 is started, and the actual situation of the detection component 4 protruding from the moving component 3 is captured, and the image to be verified is obtained, and the image to be verified is converted into an electrical signal and transmitted to the image processing terminal 21, and the image processing terminal 21 compares the reference image with the image to be verified, so as to obtain whether the actual installation direction of the pin 12 of the female terminal 11 meets the design requirements.

[0021] In the present invention, by designing the detection component 4, the actual installation situation of the pin 12 inside the concave female terminal 11 can be converted into the actual observation situation of the detection component 4 convex on the movable component 3, which is convenient for subsequent image acquisition work; in the present invention, the end of the detection component 4 away from the terminal will not be blocked and will be completely exposed to the shooting area of ​​the image acquisition component 2. The image acquisition component 2 can shoot the detection component 4 along the installation direction perpendicular to the female terminal 11, and can obtain a clear image to be verified. It can quickly determine the installation direction of the pin 12 inside the female terminal 11, thereby improving the visual comparison efficiency of the installation direction of the pin 12 inside the female terminal 11.

[0022] It is worth mentioning that the image acquisition component 2 can be a CCD industrial camera.

[0023] In this embodiment, the image processing terminal 21 can be a PC as a processing platform, which collects pictures through a CCD industrial camera, performs image processing based on the PC processing platform, and outputs the analysis results to output devices such as a display or a control mechanism; it can be understood that the specific process of how to perform mechanical vision analysis based on the collected pictures is a well-known technology in the art and will not be repeated here.

[0024] Of course, during the testing process, a clamping device such as a cylinder or a clamp can be flexibly used to assist in fixing the connector 1 to be tested.

[0025] Reference Figure 3 As shown, the device also includes: a mounting through hole 61, which is opened in the movable component 3 along the mounting direction of the female terminal 11 for the detection component 4 to be installed; a slide groove 62, which is opened on the inner wall surface of the mounting through hole 61 along the mounting direction of the female terminal 11; a mounting shaft 63, which is arranged on the detection component 4; a bearing 64, wherein the inner ring of the bearing 64 is arranged on the mounting shaft 63, and the outer ring of the bearing 64 is rollably arranged in the slide groove 62.

[0026] By providing the bearing 64 , the detection component 4 and the moving component 3 can be brought into rolling contact, which can reduce the resistance between the detection component 4 and the moving component 3 , making it easier for the pin 12 to push the detection component 4 and preventing the pin 12 from being damaged.

[0027] Specifically, the detection component 4 includes: a step-mounted abutment component 42 and a carrier body 41 , the abutment component 42 is used to contact the pins 12 , and the carrier body 41 is disposed in the moving component 3 .

[0028] In this embodiment, the device also includes: a limiting cover plate 71, which is arranged on the moving component and is located on the side of the moving component 3 close to the female terminal 11, and is used to limit the travel of the carrier body 41; a reset component 72, which is located on the side of the moving component 3 away from the female terminal 11, and is used to resist the carrier body 41 from resetting to the moving component 3.

[0029] During specific use, after the image acquisition component 2 completes shooting, the power component continues to drive the moving component 3 to move in the direction away from the connector 1 until the moving component 3 and the reset component 72 are in contact. The reset component 72 can push the detection component 4 protruding from the moving component 3 back into the moving component 3 until the carrier body 41 is in contact with the limit cover 71 again; the reset work of the detection component 4 can be completed in batches, waiting for the next detection work to be carried out.

[0030] Preferably, the device further comprises: an abutment head made of rubber, which is arranged on the abutment component 42 and is used to contact the pin 12 , and can elastically contact between the detection component 4 and the pin 12 , so as to further protect the pin 12 .

[0031] In this embodiment, the device also includes a light source 8 (which can be a photography fill light), which is arranged on the same side of the image acquisition component 2 and is used to provide fill light to the moving component 3, further ensuring the clarity of the image to be verified captured by the image acquisition component 2.

[0032] Specifically, the power component includes: an electric push rod 5, the push rod of the electric push rod 5 is connected to the moving component 3; a servo motor (not shown in the figure), the output shaft of the servo motor is connected to the electric push rod 5; the rotational power generated by the output shaft of the servo motor is transmitted to the screw inside the electric push rod 5, and the rotation of the screw drives the nut to move linearly, thereby realizing the extension and retraction of the push rod. It can be understood that this process can realize the reciprocating motion of the push rod by changing the forward and reverse rotation of the servo motor.

[0033] In this embodiment, a ball bushing is also installed on the reset component 72 , and the push rod of the electric push rod 5 passes through the ball bushing to connect with the moving component 3 .

[0034] It should be understood by those skilled in the art that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the equivalent technology of the claims of the present invention, the present invention is also intended to include these modifications and variations.

Claims

1. A detection device for determining the terminal installation direction using mechanical vision, characterized in that: include: The moving component (3) is capable of performing linear reciprocating motion along the installation direction of the female terminal (11); An image acquisition component (2) is arranged on one side of the moving component (3) and is capable of capturing and photographing an image to be verified, and a photographing direction of the image acquisition component (2) is perpendicular to an installation direction of the female terminal (11); A plurality of detection components (4) are slidably arranged on the movable component (3) along the installation direction of the female terminal (11), corresponding to the pins (12) with different installation directions; wherein one end of the detection component (4) can enter into the female terminal (11) and abut against the pins (12); and the other end of the detection component (4) can protrude out of the movable component (3) for the image acquisition component (2) to capture the image to be verified; A power component, used to drive the moving component (3) to move; The image processing terminal (21) stores a reference image of the installation of the female terminal (11), and is used to receive the image to be verified and compare the reference image with the image to be verified.

2. The detection device for determining the terminal installation direction by using mechanical vision according to claim 1, characterized in that: Also includes: A mounting through hole (61) is provided in the movable component (3) along the mounting direction of the female terminal (11) for mounting the detection component (4); A slide groove (62) is provided on the inner wall surface of the mounting through hole (61) along the mounting direction of the female terminal (11); A mounting shaft (63) is arranged on the detection component (4); A bearing (64), wherein the inner ring of the bearing (64) is arranged on the mounting shaft (63), and the outer ring of the bearing (64) is rollably arranged in the slide groove (62).

3. The detection device for determining the terminal installation direction by using mechanical vision according to claim 1, characterized in that: The detection component (4) comprises: a step-mounted abutment component (42) and a carrier body (41); the abutment component (42) is used for contacting the pin (12); and the carrier body (41) is arranged in the moving component (3).

4. The detection device for determining the terminal installation direction by using mechanical vision according to claim 3, characterized in that: Also includes: A limiting cover plate (71) is arranged on the moving component and is located on a side of the moving component (3) close to the female terminal (11), and is used to limit the travel of the object-carrying body (41); The reset component (72) is located on a side of the moving component (3) away from the female terminal (11) and is used to abut against the carrier body (41) to reset into the moving component (3).

5. The detection device for determining the terminal installation direction by using mechanical vision according to claim 3, characterized in that: Also includes: The abutment head made of rubber is arranged on the abutment component (42) and is used for contacting the pin (12).

6. The detection device for determining the terminal installation direction by using machine vision according to claim 1, characterized in that: It also comprises a light source (8), which is arranged on the same side as the image acquisition component (2) and is used to provide supplementary light to the moving component (3).

7. The detection device for determining the terminal installation direction by using machine vision according to claim 1, characterized in that: The power components include: An electric push rod (5), the push rod of the electric push rod (5) is connected to the moving part (3); The servo motor has an output shaft which is connected to the electric push rod (5).

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