Coaxial light source visual inspection sensor device for aluminum alloy welding seam

Abstract

The utility model discloses an aluminum alloy weld joint coaxial light source visual inspection sensor device which comprises a camera, a lens, a light source, a camera clamp, a light source clamp, a mechanical arm interface, a top plate, a left side plate, a right side plate, a front side plate and a rear side plate. The camera is connected with a lens through a C-mount interface, a mechanical arm interface is installed in the middle of the top of the top plate, a light source clamp is installed on the inner side of a right side plate connected to the lower portion of the left end of the top plate, and a light source is installed on the light source clamp. The device is reasonable in structural design, can be fixed on a mechanical arm, can also be fixed on other contact surfaces, is high in portability, and is suitable for short-distance detection, high in required precision and high in detection speed; the detection accuracy and the detection efficiency can be improved, and the labor cost is reduced; and real-time detection on the surface quality of the aluminum alloy weld joint in the automatic welding process can be realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to resistance spot welding aluminum alloy weld visual inspection field, especially in kind of aluminum alloy weld coaxial light source visual inspection sensor device. BACKGROUND

[0002] Rail transit equipment manufacturing industry develops towards low emission, low pollution, light weight, intelligent direction, and train light weight has become the important development direction of rail passenger car, and aluminum alloy structural member is widely applied.Welding is the most important way of aluminum alloy component connection, and welding operation accounts for more than 80% of the total work of rail vehicle body and bogie, and the quality of aluminum alloy weld directly determines the safety and service life of rail passenger car, and the quality of aluminum alloy welding is mainly ensured through post-weld quality detection.Common appearance detection method mainly depends on visual inspection by naked eye, but fatigue, responsibility and experience of people can cause misjudgment, and there are management problems caused by the large number of personnel used, disputes between different evaluation results have no evaluation standard and other problems, and a reliable and durable aluminum alloy weld sensor device is urgently needed to realize weld surface defect detection, which can not only improve detection accuracy and detection efficiency, but also reduce labor cost. SUMMARY

[0003] The utility model discloses a kind of aluminum alloy weld coaxial light source visual inspection sensor device, and the purpose is to provide a kind of aluminum alloy weld coaxial light source visual inspection sensor device to solve the above problems.

[0004] The utility model discloses a kind of aluminum alloy weld coaxial light source visual inspection sensor device, and the purpose is to provide a kind of aluminum alloy weld coaxial light source visual inspection sensor device to solve the above problems.

[0005] Preferably, the lens is vertically placed above the antireflection lens of the light source, and the distance between the lens and the workpiece surface is 300mm.

[0006] Preferably, the front, rear and left of the top plate are respectively fixedly connected with the front side plate, the rear side plate and the left side plate.

[0007] Preferably, the camera is a black-and-white CMOS area array camera, with a resolution of 4024x3036, a frame rate of 9.7fps, and a target surface size of the photosensitive chip of 1 / 1.7.

[0008] Preferably, the target surface size of the lens is 1.1", and the focal length is 50mm.

[0009] Preferably, the light source is a white light coaxial light source of an LED lamp, the input power is 24V / 7.6W, the shell size is 60mm, the light emitting surface size is 52mm, and the light source adjusts the height through a light source clamp.

[0010] Compared with the prior art, the advantages of the utility model lie in that: can be fixed on the mechanical arm, also can be fixed on other contact surfaces, strong transplantability, applicable to the situation of near distance detection, high precision requirement and fast detection speed, can improve detection accuracy and detection efficiency and reduce artificial cost, can realize real-time detection of aluminum alloy weld surface quality in automatic welding process. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor under the premise of the drawings.

[0012] Fig. 1 It is the front view internal structure schematic diagram of the present application;

[0013] Fig. 2 It is the right view of the present application;

[0014] Fig. 3 It is the field of view range schematic diagram of the present application.

[0015] In the drawing: 1, camera;2, lens;3, light source;4, camera clamp;5, light source clamp;6, mechanical arm interface;7, top plate;8, left side plate;9, right side plate;10, front side plate;11, rear side plate. DETAILED DESCRIPTION

[0016] In order to make the purpose, feature, advantage of the utility model more obvious and easy to understand, the following will combine the drawings in the embodiments of the utility model, and the technical scheme in the embodiments of the utility model is clearly and completely described, obviously, the following described embodiments are only some embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the utility model.

[0017] The technical scheme of the utility model will be further illustrated by specific embodiments in combination with the drawings.

[0018] In the description of the utility model, it is understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0019] Referring to Figs. 1 to 3 As shown in the figure, the camera 1 is installed on the camera clamp 4, the camera clamp 4 is fixed on the top plate 7, the lens 2 is connected with the camera 1 through a C-mount interface, the light source 3 is installed on the light source clamp 5, the light source clamp 5 is fixed on the right side plate 9, the front side plate 10, the rear side plate 11 and the top plate 7 and the left side plate 8 and the right side plate 9 are connected to form a main body, and the mechanical arm interface 6 is fixed on the top plate 7.

[0020] The camera 1 is a black and white CMOS area camera, the resolution is 4024*3036, the frame rate is 9.7fps, and the target surface size of the photosensitive chip is 1 / 1.7"; the interface of the lens 2 is a C-mount interface, the target surface size is 1.1", the focal length is 50mm, the light source 3 is a white coaxial light source of LED lamp, the input power is 24V / 7.6W, the shell size is 60mm, the light emitting surface size is 52mm, the light source 3 can be adjusted in height through the light source clamp 5, the lens 2 is vertically placed above the antireflection lens of the light source 3, and the distance from the lens 2 to the workpiece surface is about 300mm, and the sensor size is: long 200mm*wide 80mm*high 300mm.

[0021] Referring to Fig. 3 The field of view range of the weld laser stripe visual detection sensor is: 40mm in the longitudinal direction, 30mm in the transverse direction, the detection accuracy is: 0.02mm in the longitudinal direction, and 0.02mm in the transverse direction.

[0022] The utility model has the advantages of being fixed on a mechanical arm, being fixed on other contact surfaces, having strong transplantability, being suitable for close-range detection, high-precision detection and fast detection, improving detection accuracy and detection efficiency, reducing labor cost, and realizing real-time detection of the surface quality of the aluminum alloy weld during the automatic welding process.

[0023] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments but can be implemented in other embodiments without departing from the scope of the present application. The embodiments are therefore to be seen as exemplary and not restrictive, the scope of the present application being defined by the appended claims and not by the above description. Any reference signs in the claims should not be construed as limiting the scope of the claims to the features to which the reference signs are attached.

[0024] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An aluminum alloy weld coaxial light source vision inspection sensor apparatus characterized by: It includes camera (1), lens (2), light source (3), camera clamp (4), light source clamp (5), mechanical arm interface (6), top plate (7), left side plate (8), right side plate (9), front side plate (10) and back side plate (11), the camera (1) is fixedly connected with the middle position of the bottom of the top plate (7) through the camera clamp (4), and the camera (1) is connected with the lens (2) through the C-mount interface, the top plate (7) top middle position is equipped with mechanical arm interface (6), the right side plate (9) inside is equipped with light source clamp (5) below the left end of the top plate (7), and the light source (3) is installed on the light source clamp (5).

2. An aluminum alloy weld coaxial light source vision inspection sensor apparatus as defined in claim 1, wherein: The lens (2) is vertically placed above the antireflection lens of the light source (3), and the distance between the lens (2) and the workpiece surface is 300mm.

3. An aluminum alloy weld coaxial light source vision inspection sensor apparatus as defined in claim 1, wherein: The front, back and left of the top plate (7) are respectively fixedly connected with the front side plate (10), the back side plate (11) and the left side plate (8).

4. An aluminum alloy weld coaxial light source vision inspection sensor apparatus as defined in claim 1, wherein: The camera (1) is a black and white CMOS area array camera, the resolution is 4024×3036, the frame rate is 9.7fps, and the target surface size of the photosensitive chip is 1 / 1.

7.

5. An aluminum alloy weld coaxial light source vision inspection sensor apparatus as defined in claim 1 wherein: The target surface size of the lens (2) is 1.1, and the focal length is 50mm.

6. An aluminum alloy weld coaxial light source vision inspection sensor apparatus as defined in claim 1, wherein: The light source (3) is a white coaxial light source of LED lamp, the input power is 24V / 7.6W, the shell size is 60mm, the light emitting surface size is 52mm, and the height of the light source (3) is adjusted through the light source clamp (5).

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