Laser and indicating light beam combining device

Abstract

The utility model relates to a laser and indicating light beam combining device which comprises a beam combining base, a containing cavity is formed in the beam combining base, a beam combining cover plate is arranged at the upper end of the beam combining base, a support is arranged in the center of the lower end of the beam combining cover plate, and the support is arranged in the containing cavity. A through hole A for laser to pass through is transversely formed in the beam combining base and the support in a penetrating manner, a beam combining mirror is arranged at the lower end of the support, and an angle of 45 degrees is formed between the beam combining mirror and a laser light path; a groove is formed in the center of the upper end of the beam combining cover plate, a laser absorber is arranged in the groove, an indication light adjusting plate is arranged at the upper end of the beam combining cover plate, an indication light source for emitting indication light is vertically arranged on the indication light adjusting plate, a through hole B for the indication light to penetrate through is vertically formed in the center of the beam combining cover plate, and a through hole C for the indication light to penetrate through is vertically formed in the center of the support. A conical groove is formed in the bottom face of the containing cavity, and the through hole B, the through hole C and the conical groove are vertically aligned. The device has the advantages of being reasonable in structural design, effectively reducing adverse effects caused by laser light returning, prolonging the service life of equipment and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of laser, specifically relates to a laser and indicating light combined beam device. BACKGROUND

[0002] Radio frequency carbon dioxide laser has the characteristics of high power, high efficiency and high stability, so it is widely used in the fields of laser cutting, laser welding, laser marking and the like. The wavelength of the laser emitted by the carbon dioxide laser is 10.6 microns, which cannot be perceived by the naked eye. In order to facilitate the determination of the laser focusing position, an indicating light positioning system is usually introduced additionally, which combines the indicating light with the laser output beam and emits it.

[0003] However, in the actual processing process, the existing laser combined beam mirror coating cannot achieve 100% transmittance effect, and the reflectivity is usually about 1%. The existence of the reflectivity has less adverse effect on the laser processing scene with small power, but for the laser with output power exceeding 100W, the small reflectivity will also cause great adverse effect. For example, in the process of laser marking metal vacuum cup, the laser reflected by the metal surface is easily damaged by the reflection of the combined beam mirror, which causes the dispersion of the indicating light mode or burns out, cannot complete the subsequent accurate positioning, and may also cause safety hazards to the operator. Therefore, it is particularly important to design a laser combined beam device which can effectively prevent the laser back light from damaging the indicating light system.

[0004] It should be noted that the above content belongs to the technical cognition of the inventor and does not necessarily constitute the prior art. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the problems existing in the prior art, and provides a laser and indicating light combined beam device, which has the advantages of reasonable structure design, effectively reducing the adverse effect of laser back light, prolonging the service life of the equipment and the like.

[0006] The utility model achieves the above-mentioned purposes by adopting the following technical solutions:

[0007] A kind of laser and indicating light combined beam device, including the combined beam base, the cavity is equipped on the combined beam base, the combined beam base upper end is equipped with combined beam cover plate, the lower end center of the combined beam cover plate is equipped with support, the support is arranged in cavity;The through-hole A for laser is equipped on the combined beam base and support and is transversely passed, the lower end of the support is equipped with combined beam mirror, the combined beam mirror is arranged with 45 ° to laser light path;The recess is equipped in the upper end center of the combined beam cover plate, the laser absorber is equipped in the recess, the combined beam cover plate upper end is equipped with indicating light adjusting plate, the indicating light source of emitting indicating light is vertically equipped on the indicating light adjusting plate, the through-hole B for indicating light is vertically equipped in the center of the combined beam cover plate, the through-hole C for indicating light is vertically equipped in the center of the support, the bottom surface of the cavity is equipped with tapered groove, the through-hole B, through-hole C and tapered groove are vertically aligned.

[0008] The laser absorber is designed as a circle.

[0009] The laser absorber is made of 7980 quartz glass or tempered glass or polycarbonate glass fiber.

[0010] The surface of the tapered groove is ground.

[0011] The combined beam mirror is designed as a circle.

[0012] The two surfaces of the combined beam mirror are respectively coated with 45 ° high-transmission film of carbon dioxide laser wavelength, and the light-incident surface of the combined beam mirror corresponding to the indicating light is coated with 45 ° high-reflection film of indicating light wavelength.

[0013] The lower end of the support is provided with a 45 ° inclined surface, and the combined beam mirror is installed on the 45 ° inclined surface.

[0014] The combined beam mirror is installed on a mirror sleeve, and the mirror sleeve is fastened on the 45 ° inclined surface by screws.

[0015] The indicating light adjusting plate is provided with a plurality of adjusting screws.

[0016] The combined beam base is designed as a cuboid, and the corresponding cavity is designed as a cuboid.

[0017] The above technical solution can bring the following beneficial effects:

[0018] (1) By setting the laser absorber on the upper end of the combined beam cover plate, a protective body is equivalent to being set in front of the indicating light source, the laser absorber can effectively attenuate the returning laser, effectively protect the indicating light source, and ensure the indicating effect and stable work of the indicating light;(2) By designing the tapered groove on the bottom surface of the cavity, part of the reflected laser beam can be diffusely reflected on the surface, so that the returning light will not damage the indicating light source. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a perspective view of the beam combining device of the utility model;

[0020] Figure 2 is a side view of the beam combining device of the utility model;

[0021] Figure 3 is Figure 2 A-A sectional view in the direction of the arrow in the figure;

[0022] Figure 4 is an exploded view of the beam combining device of the utility model;

[0023] In the figure, 1, beam combining base, 2, cavity, 3, beam combining cover plate, 4, support, 5, through hole A, 6, beam combining mirror, 7, groove, 8, laser absorption body, 9, laser adjusting plate, 10, light source, 11, through hole B, 12, through hole C, 13, conical groove, 14, 45° inclined surface, 15, mirror sleeve, 16, screw, 17, adjusting screw, 18, laser, 19, indicating light, 20, combined light. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the overall concept of the utility model, the following will be described in detail in the form of examples combined with the attached drawings of the specification.

[0025] In the following description, a lot of specific details are set forth in order to fully understand the utility model, however, the utility model can also be implemented in other ways different from the description herein, therefore, the protection scope of the utility model is not limited by the specific embodiments disclosed below.

[0026] Each embodiment in the specification adopts progressive mode for description, and the same and similar parts between each embodiment can be mutually referred to, and each embodiment mainly describes the difference from other embodiments.

[0027] In the utility model, the terms "transverse", "longitudinal", "vertical", "A", "B", "C" are only used for description purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the position of the indicated technical features.

[0028] In the utility model, unless otherwise explicitly specified and limited, the terms "provided with", "set", "connected", "communicated" and other terms should be understood in a broad sense, for example, "provided with" and "set" can be fixedly installed, or can be detachably installed, or can be integrated; "connected" can be directly connected, or can be connected through an intermediate medium, and "communicated" mainly refers to gas communication in the application. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] For example, Figures 1-4As shown, a laser and indicating light combined beam device includes a combined beam base 1, a cavity 2 is arranged on the combined beam base 1, a combined beam cover plate 3 is arranged on the upper end of the combined beam base 1, and in practical application, the combined beam cover plate 3 can be installed on the upper end of the combined beam base 1 through threaded connection, a support 4 is arranged at the center of the lower end of the combined beam cover plate 3, and the support 4 is mainly used for installing a combined beam mirror 6 and is arranged in the cavity 2, a through hole A5 for passing through the laser 18 is arranged transversely on the combined beam base 1 and the support 4, the through hole A5 provides a channel for the laser 18, the combined beam mirror 6 is arranged at the lower end of the support 4, the combined beam mirror 6 is arranged at an angle of 45° with the laser light path, the combined beam mirror 6 realizes the combination of the laser 18 and the indicating light 19, and forms a combined beam light 20, a recess 7 is arranged at the center of the upper end of the combined beam cover plate 3, and a laser absorber 8 is arranged in the recess 7, the laser absorber 8 can effectively attenuate the returned laser before the indicating light, thereby protecting the indicating light source 10 and ensuring the indicating effect and stable work of the indicating light. An indicating light adjusting plate 9 is arranged on the upper end of the combined beam cover plate 3, the indicating light adjusting plate 9 can finely adjust the indicating light, an indicating light source 10 for emitting the indicating light 19 is arranged vertically on the indicating light adjusting plate 9, a through hole B11 for the indicating light to pass through is arranged vertically at the center of the combined beam cover plate 3, a through hole C12 for the indicating light 19 to pass through is arranged vertically at the center of the support 4, a tapered groove 13 is arranged on the bottom surface of the cavity 2, and the through hole B11, the through hole C12 and the tapered groove 13 are vertically aligned.

[0030] The laser absorber 8 is designed in a circular shape. The circular shape is commonly used and easy to design and process.

[0031] The laser absorber 8 is made of 7980 quartz glass or tempered glass or polycarbonate glass fiber. The above-mentioned materials have good effect of attenuating returned laser.

[0032] The surface of the tapered groove 13 is ground to be rough. This effectively prevents plane reflection, so that the returned light will not damage the indicating light source 10.

[0033] The combined beam mirror 6 is designed in a circular shape.

[0034] The two surfaces of the combined beam mirror 6 are respectively coated with a 45° high-transmission film of carbon dioxide laser wavelength, and the surface of the combined beam mirror 6 corresponding to the light-incident surface of the indicating light is coated with a 45° high-reflection film of the wavelength of the indicating light. This ensures that the laser 17 passes through the combined beam mirror horizontally, and the indicating light 19 can be reflected and combined with the laser 18 to form the combined beam light 20.

[0035] The lower end of the support 4 is provided with a 45° inclined surface 14, and the combined beam mirror 6 is installed on the 45° inclined surface 14. The design of the 45° inclined surface 14 helps to ensure that the combined beam mirror 6 is arranged at an angle of 45° with the laser light path.

[0036] The beam combiner 6 is mounted on a lens holder 15, which is fastened on the 45° inclined surface 14 by screws 16. Quick and accurate installation is achieved.

[0037] A plurality of adjusting screws 17 are arranged on the indicating light adjusting plate 9. The direction of the indicating light 19 is accurately adjusted by rotating the adjusting screws 17.

[0038] The beam combiner base 1 is designed in a cuboid shape, and the corresponding cavity 2 is designed in a cuboid shape. The cuboid shape is easy to process and design, especially convenient for the design of the optical path.

[0039] The above specific embodiments cannot be regarded as a limitation on the protection scope of the present application. Any alternative improvement or transformation made by those skilled in the art to the embodiments of the present application falls within the protection scope of the present application.

[0040] The details not described in the present application are well-known to those skilled in the art.

Claims

1. A laser and aiming light combining device, comprising: The application relates to a laser beam combining base, which comprises a laser beam combining base provided with a containing cavity, a laser beam combining cover plate arranged at the upper end of the laser beam combining base, a support arranged at the center of the lower end of the laser beam combining cover plate and arranged in the containing cavity, a through hole A for laser beam passing through the laser beam combining base and the support horizontally, a laser beam combining mirror arranged at the lower end of the support, the laser beam combining mirror being arranged at an angle of 45 DEG with the laser beam path, a recess arranged at the center of the upper end of the laser beam combining cover plate, a laser beam absorber arranged in the recess, an indicating light adjusting plate arranged at the upper end of the laser beam combining cover plate, an indicating light source arranged vertically on the indicating light adjusting plate and emitting indicating light, a through hole B for indicating light passing through the center of the laser beam combining cover plate vertically, a through hole C for indicating light passing through the center of the support vertically, a conical groove arranged on the bottom surface of the containing cavity, and the through hole B, the through hole C and the conical groove being vertically aligned.

2. A laser and aiming light combining device according to claim 1, wherein, The laser beam absorber is designed in a circular shape.

3. A laser and aiming light combining device according to claim 2, wherein, The laser beam absorber is made of 7980 quartz glass, tempered glass or polycarbonate glass fiber.

4. The combined laser and aiming beam device of claim 1 or 3, wherein, The surface of the conical groove is ground.

5. A laser and aiming light combining device according to claim 4, wherein, The laser beam combining mirror is designed in a circular shape.

6. A laser and aiming light combining device according to claim 5, wherein, The two surfaces of the laser beam combining mirror are respectively coated with a 45 DEG high-transparency film of the wavelength of carbon dioxide laser beam, and the light-incident surface of the laser beam combining mirror corresponding to the indicating light is coated with a 45 DEG high-reflection film of the wavelength of the indicating light.

7. The combined laser and aiming beam device of claim 1 or 6, wherein, The lower end of the support is provided with a 45 DEG inclined surface, and the laser beam combining mirror is arranged on the 45 DEG inclined surface.

8. A laser and aiming light combining device according to claim 7, wherein, The laser beam combining mirror is arranged on a mirror sleeve, and the mirror sleeve is fastened on the 45 DEG inclined surface through screws.

9. A laser and aiming light combining device according to claim 8, wherein, The indicating light adjusting plate is provided with a plurality of adjusting screws.

10. The combined laser and aiming beam device of claim 1 or 9, wherein, The laser beam combining base is designed in a cuboid shape, and the corresponding containing cavity is designed in a cuboid shape.

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