Laser galvanometer device guided by camera

Abstract

The utility model relates to the field of laser galvanometer devices, in particular to a laser galvanometer device guided by a camera. Comprising a mounting rack, one side of the mounting rack is connected with a laser, the mounting rack is connected with a galvanometer corresponding to the laser, and the galvanometer is fixedly provided with reflectors and cameras corresponding to the reflectors through substrates on different sides of the laser; the light path of the laser reflected by the galvanometer is coaxial with the sight line of the camera reflected by the reflector; a protective plate is arranged on the substrate in the circumferential direction of the reflector, and an illuminating lamp is arranged at the open end, away from the galvanometer, of the protective plate. According to the application, the galvanometer and the reflector corresponding to the laser and the camera respectively are arranged, so that the sight line of the camera reflected by the reflector and the light path of the laser reflected by the galvanometer coincide on the premise that the laser and the camera do not interfere with each other, and the camera can conveniently guide the laser beam.

Description

Technical Field

[0001] The utility model relates to the field of laser galvanometer devices, in particular to a laser galvanometer device guided by a camera. Background Art

[0002] With the rapid development of high-power laser welding machines, the requirements for laser welding performance and quality during the welding of different sheet materials have further increased. To precisely control the weld point, a CCD camera is often used to assist with visual positioning, facilitating adjustment of the laser welding head. However, in existing mechanical welding machines, the CCD camera and laser are often not aligned on the same axis. This causes the image observed during CCD camera focus adjustment to deviate from the laser weld point, resulting in inaccurate adjustments and affecting the final weld quality. Expanding the CCD camera's visual range requires a larger camera, which is costly. Utility Model Content

[0003] The utility model aims to provide a laser galvanometer device guided by a camera, so as to solve the problem in the prior art that the CCD camera and the laser are not coaxial.

[0004] The technical solution of the utility model is: a laser galvanometer device guided by a camera, comprising a mounting frame, a laser connected to one side of the mounting frame, a galvanometer connected to the mounting frame corresponding to the laser, a reflector fixed to the galvanometer on a different side of the laser through a base plate, and a camera arranged corresponding to the reflector; the optical path of the laser after being reflected by the galvanometer is coaxial with the line of sight of the camera after being reflected by the reflector;

[0005] The reflector adopts a pseudo coaxial refractive lens;

[0006] A protective plate is arranged on the substrate around the circumference of the reflector, and an illuminating lamp is arranged at the opening end of the protective plate away from the galvanometer.

[0007] Preferably, the mounting frame is configured as an L-shaped structure, including a vertical section connected to the laser and a horizontal section fixed to the base plate, the horizontal section extends in a direction away from the protective plate, and a camera is mounted at the extension portion.

[0008] Preferably, a connecting plate is provided at the vertical end of the mounting frame and is fixed to the laser through the connecting plate; a through hole is provided in the middle of the connecting plate, and a connecting flange for connecting to the galvanometer is provided at the end away from the laser corresponding to the through hole.

[0009] Preferably, the protective plate is provided with a window corresponding to the camera, and the camera passes through the window and is arranged toward the reflector.

[0010] Preferably, the angle between the reflector and the substrate is between 40° and 50°.

[0011] Preferably, the lighting lamp is configured as a circular ring structure with a through hole in the middle, and the light source of the lighting lamp is disposed around the through hole.

[0012] Preferably, a bracket is provided on the protective plate, and the projection of the bracket along the horizontal direction is set to a C-shaped structure. Both ends of the bracket C-shaped structure are fixed to the protective plate, and the middle part is set to a circular ring and connected to the lighting lamp.

[0013] Preferably, the camera is connected to the base plate via a lifting plate.

[0014] Compared with the prior art, the advantages of the present invention are: by providing a galvanometer and a reflector corresponding to the laser and the camera respectively, the present application enables the laser and the camera to achieve the coincidence of the line of sight of the camera after reflection by the reflector and the optical path of the laser after reflection by the galvanometer without interfering with each other, thereby facilitating the camera to guide the laser beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a structural diagram of a camera-guided laser galvanometer device described in the present invention;

[0017] Figure 2 This is an exploded view of a camera-guided laser galvanometer device according to the present invention;

[0018] Among them: 1. Mounting frame, 11. Connecting plate, 12. Connecting flange, 13. Base plate, 2. Laser, 3. Galvanometer, 4. Reflector, 5. Camera, 6. Lighting lamp, 7. Protective plate, 8. Bracket, 9. Lifting plate. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the present invention in conjunction with specific embodiments:

[0020] like Figure 1 - Figure 2 As shown, a device with a laser galvanometer 3 guided by a camera 5 includes a mounting frame 1. A horizontally arranged laser 2 is connected to one side of the mounting frame 1, and a galvanometer 3 is connected to the corresponding laser 2. A reflector 4 is arranged above the galvanometer 3. The reflector 4 is arranged at an angle, and a camera 5 is fixed to one side of the reflector 4 through a base plate 13. This ensures that the line of sight of the camera 5 after reflection from the reflector 4 coincides with the optical path of the laser after reflection from the galvanometer 3, without interfering with each other, thereby facilitating the guidance of the laser beam by the camera 5.

[0021] Specifically, the mounting frame 1 is configured as an L-shaped structure, having a vertical section and a horizontal section. A connecting plate 11 is fixed to the vertical section. The side of the connecting plate 11 facing away from the mounting frame 1 is fixed to the camera 5 and has a through hole at its center for the laser light emitted by the laser 2 to pass through. A connecting flange 12 is fixed to the other side of the connecting plate 11. The connecting flange 12 is arranged corresponding to the through hole and is connected to the galvanometer 3 at the end facing away from the connecting plate 11, allowing the laser light emitted by the laser 2 to illuminate the galvanometer 3.

[0022] A base plate 13 is fixed to the horizontal section of the mounting frame 1. Four rectangular protective plates 7 are mounted on the base plate 13. The reflector 4 is fixed within the rectangular space enclosed by the four protective plates 7. In the preferred embodiment, the reflector 4 forms a 45° angle with the base plate 13. The base plate 13 extends horizontally away from the protective plates 7. The camera 5 is mounted on the extended portion of the base plate 13 via a lifting plate 9. A window corresponding to the camera 5 is provided in the protective plates 7 near the camera 5. The camera 5 lens extends through the window and faces the reflector 4.

[0023] To enhance the camera 5's field of view, a lighting fixture 6 is mounted above the four protective plates 7 via a bracket 8. The lighting fixture 6 is a circular ring with a central through-hole. The light source of the lighting fixture 6 is arranged around the through-hole. The bracket 8 projects horizontally into a C-shaped structure, with both ends of the C-shaped structure secured to the protective plates 7 and the central portion of the bracket 8 being a circular ring connected to the lighting fixture 6.

[0024] It should be noted that the reflector 4 is a pseudo-coaxial refractive lens that allows specific wavelengths to pass through without reflection. Therefore, the line of sight of the camera 5 will be deflected by the reflector 4, while the laser light will pass through the reflector 4 directly.

[0025] When using:

[0026] The laser light emitted by the laser 2 is reflected by the galvanometer 3 at 90 degrees and then passes through the reflector 4. At the same time, the reflector 4 reflects the line of sight of the camera 5 at 90 degrees, so that the deflected line of sight of the camera 5 coincides with the optical path of the laser light.

[0027] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and they are not intended to limit the scope of protection of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A laser galvanometer device guided by a camera, characterized in that: The invention comprises a mounting frame (1), wherein one side of the mounting frame (1) is connected to a laser (2), the mounting frame (1) is connected to a galvanometer (3) corresponding to the laser (2), the galvanometer (3) is fixed with a reflector (4) via a base plate (13) on a different side of the laser (2), and a camera (5) is arranged corresponding to the reflector (4); the optical path of the laser (2) after being reflected by the galvanometer (3) is coaxial with the line of sight of the camera (5) after being reflected by the reflector (4); The reflector (4) adopts a pseudo-coaxial refractive lens; A protective plate (7) is provided on the substrate (13) in a circumferential direction around the reflector (4), and an illuminating lamp (6) is provided at an open end of the protective plate (7) away from the galvanometer (3); The reflector (4) is arranged above the galvanometer (3), and the camera (5) is fixed to one side of the reflector (4) via a substrate (13), so that the laser light emitted by the laser (2) is reflected by the galvanometer (3) at 90 degrees and then passes through the reflector (4).

2. The camera-guided laser galvanometer device according to claim 1, characterized in that: The mounting frame (1) is configured as an L-shaped structure, comprising a vertical section connected to the laser (2) and a horizontal section fixed to the base plate (13); the horizontal section extends in a direction away from the protective plate (7) and carries a camera (5) at the extension.

3. The camera-guided laser galvanometer device according to claim 2, characterized in that: A connecting plate (11) is provided at the vertical end of the mounting frame (1) and is fixed to the laser (2) via the connecting plate (11); a through hole is provided in the middle of the connecting plate (11), and a connecting flange (12) for connecting to the galvanometer (3) is provided at the end away from the laser (2) corresponding to the through hole.

4. The camera-guided laser galvanometer device according to claim 2, characterized in that: The protective plate (7) is provided with a window corresponding to the camera (5), and the camera (5) passes through the window and is arranged toward the reflector (4).

5. The camera-guided laser galvanometer device according to claim 4, characterized in that: The included angle between the reflector (4) and the substrate (13) is between 40° and 50°.

6. The camera-guided laser galvanometer device according to claim 1, characterized in that: The lighting lamp (6) is arranged in a circular ring structure, with a through hole in the middle, and the light source of the lighting lamp (6) is arranged around the through hole.

7. The camera-guided laser galvanometer device according to claim 6, characterized in that: A bracket (8) is provided on the protective plate (7), and the bracket (8) is configured as a C-shaped structure when projected in the horizontal direction. Both ends of the C-shaped structure of the bracket (8) are fixed to the protective plate (7), and the middle portion is configured as a circular ring and connected to the lighting lamp (6).

8. The camera-guided laser galvanometer device according to claim 4, characterized in that: The camera (5) is connected to the base plate (13) via a lifting plate (9).

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