Laser welding spot optical detection device with shading function

Abstract

The utility model discloses a laser welding spot optical detection device with a shading function. The laser welding spot optical detection device comprises a connecting arm, an industrial camera arranged on the connecting arm, a first annular light source connected to the industrial camera, a connecting base and a second annular light source, the connecting base is installed on the connecting arm, an avoiding hole is formed in the connecting base, the second annular light source is arranged on the bottom face of the connecting base, and light reflected by a detected object sequentially passes through an inner ring of the second annular light source, the avoiding hole and an inner ring of the first annular light source to enter the camera; the connecting base extends outwards to form a sliding base, two sliding blocks are connected to the sliding base in a sliding mode, each sliding block is connected with an L-shaped shading plate, and the two shading plates are oppositely arranged and are in a U shape after being spliced. Compared with the prior art, the laser welding spot optical detection device can shield from three directions, and the shielding effect and the protection effect are guaranteed. In addition, the device is suitable for annular light sources of different dimensions.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser welding spot optical detection devices, and in particular relates to a laser welding spot optical detection device with a light shielding function. Background Art

[0002] AOI equipment emits strong light during use, especially when multiple ring-shaped light sources are used to improve inspection results. This light is even more glaring, which can cause damage to the operator's eyes. Currently, due to the wide variety of AOI equipment, the size and specifications of the ring-shaped light sources in the equipment are not uniform, and there are differences in the installation and fixing structures of the ring-shaped light sources. It is difficult to fix the appropriate light-shielding structure on the equipment. When using rings of different sizes, different sized light shields are required, which is very troublesome to use. When using light shields of the same specifications, mismatches are likely to occur, such as interference or inability to fully block the light. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a laser welding spot optical detection device with a light shielding function.

[0004] To achieve the above objectives, the utility model discloses a laser weld spot optical detection device with a light shielding function, comprising a connecting arm, an industrial camera provided on the connecting arm, a first annular light source connected to the industrial camera, a connecting base, and a second annular light source;

[0005] The connecting base is mounted on the connecting arm and is provided with an avoidance hole. The second annular light source is provided on the bottom surface of the connecting base. The light reflected by the detected object passes through the inner ring of the second annular light source, the avoidance hole, and the inner ring of the first annular light source in sequence to enter the camera.

[0006] A sliding base is extended outward from the connecting base, and two sliding blocks are slidably connected to the sliding base. Each sliding block is connected to an L-shaped sunshade. The two sunshades are arranged facing each other and form a U shape after being spliced.

[0007] Preferably, the sliding base is provided with a horizontally arranged first elongated hole, and the sliding block is provided with a first connecting hole;

[0008] It also includes a locking piece, which passes through the first elongated hole and the first connecting hole to fix the slider on the sliding base.

[0009] Preferably, there are a plurality of the first elongated holes, which are arranged in parallel, and there are a plurality of the first connecting holes.

[0010] Preferably, part of the first connection holes cooperates with the slider, and another part of the first connection holes cooperates with the corresponding sunshade.

[0011] Preferably, the slider is L-shaped.

[0012] Preferably, the connecting arm includes a first connecting arm and a second connecting arm, and both ends of the connecting base are respectively connected to the first connecting arm and the second connecting arm.

[0013] Preferably, the connecting base is provided with a second elongated hole arranged in the vertical direction, and the first connecting arm and the second connecting arm are provided with multiple second connecting holes in the vertical direction. The second elongated hole and the second connecting hole cooperate to slide the connecting base to the first connecting arm and the second connecting arm.

[0014] Preferably, the lowest position of the second annular light source is lower than the lowest positions of the first connecting arm and the second connecting arm.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] A sliding base extends outward from the connecting base, slidably connected to two sliders. Each slider is connected to an L-shaped visor. The two visors are arranged opposite each other and form a U-shape when spliced. In this way, the two visors can block light from three directions after assembly, ensuring effective shielding and protection. Each visor is connected to a corresponding slider. When the second ring-shaped light source is large, the two sliders can be moved outward relative to each other to prevent interference between the two visors and the second ring-shaped light source. When the second ring-shaped light source is small, the two sliders can be moved inward relative to each other. This ensures a compact overall structure and avoids the problem of two visors being located on the outside, which would take up a lot of space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the three-dimensional structure of the laser welding point optical detection device with light shielding function in Example 1;

[0018] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the laser weld spot optical inspection device from another perspective;

[0019] Figure 3 for Figure 2 Schematic diagram of the three-dimensional exploded structure of the optical inspection device for laser weld points;

[0020] Connecting arm 1; first connecting arm 11; second connecting arm 12; crossbeam 13; second connecting hole 14;

[0021] Industrial camera 2;

[0022] A first annular light source 3;

[0023] Connecting base 4; sliding base 41; first elongated hole 42; second elongated hole 43;

[0024] A second annular light source 5;

[0025] Slider 6; first connecting hole 61;

[0026] Shade 7. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0028] An optical inspection device for laser welding points with light shielding function, see Figure 1-Figure 3 , comprising a connecting arm 1, an industrial camera 2 (including a camera and a lens) mounted on the connecting arm 1, a first annular light source 3 connected to the industrial camera 2, a connecting base 4, and a second annular light source 5. The connecting base 4 is mounted on the connecting arm 1 and is provided with an escape hole. The second annular light source 5 is disposed on the bottom surface of the connecting base 4. Light reflected from the object being detected passes sequentially through the inner ring of the second annular light source 5, the escape hole, and the inner ring of the first annular light source 3, thereby entering the camera.

[0029] The connecting base 4 extends outwardly with a sliding base 41, on which two sliders 6 are slidably connected, each of which is connected to an L-shaped light shielding plate 7. The two light shielding plates 7 are arranged opposite to each other and form a U-shape when spliced ​​together. The connecting base 4 extends outwardly with a sliding base 41, on which two sliders 6 are slidably connected, each of which is connected to an L-shaped light shielding plate 7. The two light shielding plates 7 are arranged opposite to each other and form a U-shape when spliced ​​together. In this way, the two light shielding plates 7 can block light in three directions after assembly, ensuring the shielding and protective effects. Each light shielding plate 7 is connected to a corresponding slider 6. When the second ring-shaped light source 5 is large, the two sliders 6 can be moved outward relative to each other to prevent the two light shielding plates 7 from interfering with the second ring-shaped light source 5. When the second ring-shaped light source 5 is small, the two sliders 6 can be moved inward relative to each other. This ensures a compact overall structure and avoids the problem of the two light shielding plates 7 being located on the outside, which takes up a large amount of space.

[0030] In this embodiment, the sliding base 41 is provided with a horizontally arranged first elongated hole 42, the slider 6 is provided with a first connecting hole 61, and a locking member, preferably a bolt, is provided. The locking member passes through the first elongated hole 42 and the first connecting hole 61 to secure the slider 6 to the sliding base 41. When the slider 6 needs to be adjusted, the locking member is loosened and then moved along the length of the first elongated hole 42, thereby adjusting the position of the slider 6, and thus the position of the light shielding plate 7.

[0031] There are multiple first elongated holes 42 , which are arranged in parallel. There are multiple first connecting holes 61 , which can improve assembly reliability.

[0032] Among them, the slider 6 has multiple first connection holes 61, some of the first connection holes 61 cooperate with the slider 6, and another part of the first connection holes 61 is connected and cooperated with the corresponding shading plate 7. The slider 6 is connected to the sliding base 41 and the shading plate 7 through multiple first connection holes 61. The structure is simple, easy to process and assemble, and conducive to improving efficiency.

[0033] In this embodiment, in order to improve the connection reliability of the L-shaped light shielding plate 7, the slider 6 is L-shaped, so that the slider 6 can be adapted to the L-shaped light shielding plate 7, thereby improving assembly reliability.

[0034] In this embodiment, the connecting arm 1 includes a first connecting arm 11, a second connecting arm 12 and a crossbeam 13 to form a gantry structure, and both ends of the connecting base 4 are respectively connected to the first connecting arm 11 and the second connecting arm 12, which firmly assembles the connecting base 4.

[0035] Among them, the connecting base 4 is provided with a second elongated hole 43 arranged in the vertical direction, and the first connecting arm 11 and the second connecting arm 12 are provided with multiple second connecting holes 14 in the vertical direction. The second elongated hole 43 and the second connecting hole 14 cooperate to slide the connecting base 4 to the first connecting arm 11 and the second connecting arm 12. First, by providing the second elongated hole 43 on the connecting base 4, at the position of a second connecting hole 14, the second elongated hole 43 can move up and down relative to the second connecting hole 14 to adjust the height position of the connecting base 4. Furthermore, by providing multiple first connecting holes 61, when the second strip hole is connected to different second connecting holes 14, the vertical height can also be adjusted. This can adjust the height position of the light source, and thus adjust the brightness of the light source, which is beneficial to improving the detection effect.

[0036] The lowest position of the second annular light source 5 is lower than the lowest positions of the first connecting arm 11 and the second connecting arm 12. Thus, when a larger second annular light source 5 is used, it can be connected below the first connecting arm 11 and the second connecting arm 12 to avoid interference.

[0037] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A laser welding spot optical inspection device with a light shielding function, characterized in that: It includes a connecting arm, an industrial camera provided on the connecting arm, a first annular light source connected to the industrial camera, a connecting base and a second annular light source; The connecting base is mounted on the connecting arm and is provided with an avoidance hole. The second annular light source is provided on the bottom surface of the connecting base. The light reflected by the detected object passes through the inner ring of the second annular light source, the avoidance hole, and the inner ring of the first annular light source in sequence to enter the camera. A sliding base is extended outward from the connecting base, and two sliding blocks are slidably connected to the sliding base. Each sliding block is connected to an L-shaped sunshade. The two sunshades are arranged facing each other and form a U shape after being spliced.

2. The laser welding spot optical inspection device with light shielding function according to claim 1, characterized in that: The sliding base is provided with a first horizontally arranged long hole, and the sliding block is provided with a first connecting hole; It also includes a locking piece, which passes through the first elongated hole and the first connecting hole to fix the slider on the sliding base.

3. The laser welding spot optical inspection device with light shielding function according to claim 2, characterized in that: There are a plurality of the first elongated holes, which are arranged in parallel, and there are a plurality of the first connecting holes.

4. The laser welding spot optical inspection device with light shielding function according to claim 3, characterized in that: Part of the first connection holes cooperates with the slider, and another part of the first connection holes cooperates with the corresponding light shielding plate.

5. The laser welding spot optical inspection device with light shielding function according to claim 1, characterized in that: The sliding block is L-shaped.

6. The laser welding spot optical inspection device with light shielding function according to claim 1, characterized in that: The connecting arm includes a first connecting arm and a second connecting arm, and both ends of the connecting base are connected to the first connecting arm and the second connecting arm respectively.

7. The laser welding spot optical inspection device with light shielding function according to claim 6, characterized in that: The connecting base is provided with a second elongated hole arranged in the vertical direction, and the first connecting arm and the second connecting arm are provided with multiple second connecting holes in the vertical direction. The second elongated holes and the second connecting holes cooperate to slide the connecting base to the first connecting arm and the second connecting arm.

8. The laser welding spot optical inspection device with light shielding function according to claim 7, characterized in that: The lowest position of the second annular light source is lower than the lowest positions of the first connecting arm and the second connecting arm.

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