2D light detection auxiliary device

Abstract

The utility model relates to the technical field of 2D light detection, in particular to a 2D light detection auxiliary device which comprises a soft light detection table and an abutting positioning table arranged on the soft light detection table. The soft light detection table comprises a base, a transparent plate is arranged on the base, and a light source is arranged below the transparent plate; a plurality of light-transmitting grooves with different widths are formed in the side wall of the abutting positioning table. According to the invention, the boundary of the metal product is ensured to be clear, so that the detection accuracy is ensured.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of 2D optical detection, in particular to a 2D optical detection auxiliary device. BACKGROUND

[0002] A 2D optical detection device, namely a two-dimensional automatic optical inspection device (2D AOI), is an important quality detection tool. It captures two-dimensional images of the detected object from a single angle using a surface array or linear array camera, and analyzes these images through image processing technology to detect defects on the surface of the object. The 2D optical detection device has wide application in printed circuit board (PCB) manufacturing, electronic assembly and mechanical processing size detection, and can efficiently and accurately detect defects such as component missing, error, displacement, etc. Although its detection range is relatively limited and only two-dimensional information of the object can be obtained, it is still favored by many manufacturing enterprises due to its relatively low cost and mature technology. With the continuous development of technology, the 2D optical detection device is also continuously improving in terms of detection speed, accuracy and intelligence.

[0003] At present, when the 2D optical detection device is used to detect the size of the small metal products processed by the applicant, the metal products are prone to reflection, resulting in blurred boundaries and low detection accuracy. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above technical problems, the application provides a 2D optical detection auxiliary device, which has the advantages of ensuring clear boundaries of metal products and ensuring detection accuracy.

[0005] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] A 2D optical detection auxiliary device, comprising a soft light detection table and an abutting positioning table arranged on the soft light detection table;

[0007] The soft light detection table comprises a base, a transparent plate is arranged on the base, and a lamp source is arranged below the transparent plate;

[0008] A plurality of light transmission grooves with different widths are arranged on the side wall of the abutting positioning table, and one side of the light transmission groove is arranged above the transparent plate.

[0009] The above technical solution can be implemented, that is, after the base is fixed on the detection workbench of the 2D light detection equipment, the product to be detected is prevented on the transparent plate, and then the lamp source below the transparent plate is used to light upward on the bottom of the metal product, so that the product photographed by the camera above is a straight projection black shadow, which has a strong contrast with the surrounding light source, so as to facilitate personnel observation and detection, thereby ensuring detection accuracy; at this time, only the edge to be checked of the product is abutted on the abutting positioning table, so that the product can be quickly aligned with the built-in reference coordinates of the 2D light detection, thereby facilitating personnel detection, thereby improving detection efficiency. In order to prevent the abutting positioning table from blocking the light source and affecting the imaging effect, a plurality of light transmission grooves with different widths are arranged on the side wall of the abutting positioning table, one side of the light transmission groove is arranged above the transparent plate, and the light transmission groove is used for transmitting the light source. Moreover, because the light source is diffusely reflected away, the imaging at the top edge of the product after abutting will not appear the projection of the abutting positioning table, thereby ensuring the accuracy of detection.

[0010] As a preferred scheme of the present application, the transparent plate comprises a glass plate and a soft light plate arranged below the glass plate.

[0011] The above technical solution is implemented to ensure the uniformity of backlight brightness, thereby ensuring the accuracy of detection.

[0012] As a preferred scheme of the present application, the abutting positioning table is detachably arranged on the base.

[0013] The above technical solution can be implemented, that is, the abutting positioning table can be replaced with different sizes or special shapes to meet the detection needs of different products.

[0014] As a preferred scheme of the present application, the base is rotatably provided with a rotating foot disc at the bottom, and a damper is arranged between the rotating foot disc and the base.

[0015] The above technical solution can be implemented, that is, after the product is placed on the abutting table, the entire base can be rotated, so that the edge of the product is aligned with the built-in reference coordinates of the 2D light detection.

[0016] As a preferred scheme of the present application, the width of the light transmission groove is 0.1-5mm.

[0017] The above technical solution is implemented to ensure the light transmission effect under the principle of diffuse reflection.

[0018] In summary, the present application has at least one of the following beneficial technical effects:

[0019] 1. The base can be fixed on the detection workbench of the 2D light detection equipment, then the product to be detected is prevented on the transparent plate, and then the bottom of the metal product is lighted upward through the lamp source below the transparent plate, so that the product photographed by the camera above is a direct projection black shadow, which has a strong contrast with the surrounding light source, so as to facilitate personnel observation and detection, thereby ensuring detection accuracy. BRIEF DESCRIPTION OF DRAWINGS

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

[0021] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.

[0022] Figure 2 is a sectional view of the embodiment of the present application.

[0023] Reference signs: 1, soft light detection table; 11, base; 12, transparent plate; 121, glass plate; 122, soft light plate; 13, lamp source; 2, abutting positioning table; 21, light transmission groove; 3, rotating foot disc; 4, damper. DETAILED DESCRIPTION

[0024] The following will be described in conjunction with the accompanying drawings Figures 1-2 The present application will be further described in detail.

[0025] The embodiment of the present application discloses a 2D light detection auxiliary device. Referring to Figure 1 , the 2D light detection auxiliary device comprises a soft light detection table 1 and an abutting positioning table 2 arranged on the soft light detection table 1.

[0026] The soft light detection table 1 comprises a base 11, a transparent plate 12 is arranged on the base 11, and a lamp source 13 is arranged below the transparent plate 12. That is, after the base 11 is fixed on the detection workbench of the 2D light detection equipment, the product to be detected is placed on the transparent plate 12, and then the lamp source 13 below the transparent plate 12 is used to light upward from the bottom of the metal product, so that the product photographed by the camera above is a black shadow of direct projection, which has a strong contrast with the surrounding light source, thereby facilitating personnel observation and detection. At this time, only the edge of the product to be detected is abutted on the abutting positioning table 2, so that the product can be quickly aligned with the built-in reference coordinates of the 2D light detection, thereby facilitating personnel detection, and the detection efficiency is improved. In order to prevent the abutting positioning table 2 from blocking the light source and affecting the imaging effect, a plurality of light transmission grooves 21 with different widths are arranged on the side wall of the abutting positioning table 2, one side of the light transmission groove 21 is arranged above the transparent plate 12, and the light transmission groove 21 is used for transmitting the light source. Moreover, because the light source is diffusely reflected away, the imaging at the top edge of the product after abutting will not appear the projection of the abutting positioning table 2. The different widths can meet the detection of products of different sizes. The width of the light transmission groove 21 is 0.1-5mm, so as to ensure the light transmission effect under the principle of diffuse reflection.

[0027] The transparent plate 12 comprises a glass plate 121 and a soft light plate 122 arranged below the glass plate 121, so as to ensure the uniformity of backlight brightness and the detection accuracy.

[0028] The abutting positioning table 2 is detachably arranged on the base 11, and different sizes or special shapes of the abutting positioning table 2 can be replaced, so as to meet the detection requirements of different products.

[0029] The base 11 is rotationally arranged with a rotating foot disc 3, and a damper 4 is arranged between the rotating foot disc 3 and the base 11. That is, after the product is placed on the abutting table, the entire base 11 can be rotated, so that the edge of the product is aligned with the built-in reference coordinates of the 2D light detection.

[0030] The implementation principle of the 2D light detection auxiliary device is that, after the base 11 is fixed on the detection workbench of the 2D light detection equipment, the product to be detected is placed on the transparent plate 12, and then the lamp source 13 below the transparent plate 12 is used to light upward from the bottom of the metal product, so that the product photographed by the camera above is a black shadow of direct projection, which has a strong contrast with the surrounding light source, thereby facilitating personnel observation and detection. Only the edge of the product to be detected is abutted on the abutting positioning table 2, so that the product can be quickly aligned with the built-in reference coordinates of the 2D light detection, thereby facilitating personnel detection, and the detection efficiency is improved. A plurality of light transmission grooves 21 with different widths are arranged on the side wall of the abutting positioning table 2, one side of the light transmission groove 21 is arranged above the transparent plate 12, and the light transmission groove 21 is used for transmitting the light source. Moreover, because the light source is diffusely reflected away, the imaging at the top edge of the product after abutting will not appear the projection of the abutting positioning table 2.

[0031] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, and thus: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. 2D light detection aid characterized in that: The soft light detection platform (1) and the abutting positioning platform (2) arranged on the soft light detection platform (1) are comprised; The soft light detection platform (1) comprises a base (11), wherein a transparent plate (12) is arranged on the base (11), and a lamp source (13) is arranged below the transparent plate (12); A plurality of light transmission grooves (21) with different widths are arranged on the side wall of the abutting positioning platform (2).

2. The 2D light inspection aid of claim 1, wherein: The transparent plate (12) comprises a glass plate (121) and a soft light plate (122) arranged below the glass plate (121).

3. The 2D light inspection aid of claim 1, wherein: The abutting positioning platform (2) is detachably arranged on the base (11), and one side of the light transmission groove (21) is arranged above the transparent plate (12).

4. The 2D light inspection aid of claim 1, wherein: A rotating foot disc (3) is rotatably arranged at the bottom of the base (11), and a damper (4) is arranged between the rotating foot disc (3) and the base (11).

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