CN111407509A - Be used for handheld welded of laser to expand and enlarge goggles - Google Patents

Abstract

The invention discloses beam-expanding and magnifying goggles for laser hand-held welding. The beam mirror is installed in the installation hole. The goggles include the outer frame of the goggles and the protective lens of the goggles. The protective lens of the goggles is installed on the outer frame of the goggles. The beam expander is installed on the outer frame through a bracket, and the bracket is a reversible structure. The goggles are provided with LED light sources. It can be turned from top to bottom or by adjusting the bracket to switch between the normal field of view and the enlarged field of view; the spectacle lenses are made of resin base and have an isolation layer on the surface, which can automatically absorb part of the visible light under strong light to avoid high-intensity light to the naked eye. Irradiation; laser protection is achieved by coating the lens with a laser protective film; there is an LED light source on the goggles, which can be adjusted according to the welding scene, which is convenient for observation during the welding process.

Description

A beam expander magnifying goggles for laser hand-held welding

technical field

The invention relates to the field of laser welding, in particular to beam-expanding magnifying goggles for laser hand-held welding.

Background technique

Usually, when carrying out laser hand-held welding, the operator needs to wear goggles to avoid damage to the eyes caused by laser radiation. The traditional goggles have simple structure and function, low cost, and cannot observe the welding position in detail.

Among them, the application number is 201822015041.4, and it is a Chinese utility model patent titled "A kind of goggles for spot welding machine". to the filter frame, so that the user can easily observe the weld.” However, the single-piece magnifying glass cannot realize the enlargement of the full field of view due to the limitation of its own focusing distance, and cannot adjust the magnification, and cannot adapt to various welding scenarios.

The application number is 201010177550.2, and the Chinese invention patent titled "Auto-focusing Surgical Magnifying Glasses" is a kind of auto-focusing surgical magnifying glasses. It consists of an optical lens group, a CCD image sensor, a microprocessor, a focus adjuster, glasses, and a bracket. The CCD image sensor is located behind the optical lens group and undertakes the task of collecting images, and transmits the signal to the microprocessor through the bracket. After the microprocessor processes the signal, the output control signal is sent to the focuser, and the focuser can quickly achieve the effect of automatic focusing by adjusting the distance between the front and rear lenses. The patent is based on CCD image processing, and then determine the distance to the observed object and then automatically focus. In the actual operation process, there may be inconsistencies between the visual field of view and the CCD observation field. At the same time, when the head moves in a small range, the CCD is frequently in the autofocus state, which affects the stability of the observation.

To sum up, it is necessary to design a kind of goggles that can easily adjust the magnification to solve the above problems.

SUMMARY OF THE INVENTION

The invention provides a beam expanding magnifying goggle for laser hand-held welding, which has a simple structure, overcomes the limitation of the focusing distance of a traditional single-piece convex lens, can realize the magnification of the entire field of view, and can manually adjust the magnification of the beam expanding magnifying glass. Multiples, and then adapt to different welding scenarios.

A beam expander magnifying goggles for laser hand-held welding, including goggles, the goggles are provided with a beam expander.

Further, the goggles include a goggle protection lens, the goggle protection lens is provided with an installation hole, and the beam expander is installed in the installation hole.

Further, the goggles include an outer frame of the goggles and a protective lens of the goggles, the protective lens of the goggles is mounted on the outer frame of the goggles, and the beam expander is mounted on the outer frame through a bracket.

Further, the bracket is a reversible structure.

Further, an LED light source is provided on the goggles.

Further, a laser protective film is provided on the protective lens of the goggles and/or the objective lens of the beam expander.

Further, the protective lens of the goggles and/or the objective lens of the beam expander adopts a resin base with an isolation layer on the surface.

Further, an adjustment knob is provided on the beam expander.

Further, the adjustment knob adjusts the magnification of the beam expander to be 2-10 times.

Further, the goggles are provided with a headscarf that is easy to wear.

Further, the goggles are mounted on the fixed seat of the welding table.

In general, the following beneficial effects can be achieved through the above technical solutions conceived by the present invention:

1. The traditional single-piece convex lens is replaced by a beam expander, which overcomes the limitation of the focusing distance of the traditional single-piece convex lens and can realize the enlargement of the full field of view;

2. The position of the beam expander magnifying glass can be fine-tuned to adapt to the different interpupillary distances of different users;

3. The magnification of the beam expander can be adjusted manually to adapt to different welding scenarios;

4. It can be turned over by looking down/head-up observation, or adjusting the bracket to realize the switching between the normal field of view and the enlarged field of view;

5. The spectacle lenses are made of resin base with an isolation layer on the surface, which can automatically absorb part of the visible light under strong light to avoid the exposure of high-intensity light to the naked eye;

6. Laser protection is achieved by coating the lens with a laser protective film;

7. There is an LED light source on the goggles, which can be adjusted according to the welding scene, which is convenient for observation during the welding process.

Description of drawings

Fig. 1 is the structural representation of the hand-held welding beam expander magnifying goggles in Example 1;

Fig. 2 is the structural representation of beam expander;

Figure 2a is a schematic diagram of the principle of adjusting the magnification from large to small;

Figure 2b is a schematic diagram of the principle of adjusting the magnification from small to large;

FIG. 3 is a schematic structural diagram of the hand-held welding beam expander magnifying goggles in Embodiment 2. FIG.

Among them, 1- goggle frame, 11- goggles, 2- goggle protective lens, 3- LED light source, 4- magnifying glass mounting hole, 5- beam expander, 51- installation mechanism, 52- eyepiece, 53- Adjustment knob, 54-beam expander housing, 55-objective lens, 6-laser protective film, 7-stand.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

Example 1:

As shown in Fig. 1, Fig. 2, Fig. 2a, Fig. 2b, a beam expander magnifying goggles for laser hand-held welding includes goggles, and the goggles are provided with a beam expander. The number of beam expanders is one or two, and in this embodiment, there are two.

The goggles include a goggle protection lens, the goggle protection lens is provided with an installation hole, and the beam expander is installed in the installation hole. The installation mechanism is any one of a buckle structure, a threaded structure, and a glue-bonding structure. In this embodiment, the goggles are glued by glue, and then the goggles are installed in the installation hole after applying glue to the end of the installation hole. After the glue is cured, the protective lens of the goggles and the beam expander are bonded as a whole, and the outer shell of the beam expander is made of plastic material, which is convenient for glue bonding.

The goggles are provided with LED light sources. In this embodiment, the LED light source is powered by dry batteries, and is provided with a rotary rheostat, through which the brightness of the LED can be adjusted to meet the needs of different light and dark welding scenarios. The scene can be adjusted to facilitate observation during the welding process.

The protective lens of the goggles and the objective lens of the beam expander are provided with a laser protective film. The laser protective film is attached to the goggles to protect the surface of the lens and objective lens. If the laser protective film is scratched, it can be removed and re-attached. The operation is simple and the maintenance cost is saved.

The beam expander is provided with an adjustment knob, and the distance between the eyepiece and the objective lens on the beam expander is adjusted through the adjustment knob, thereby adjusting the magnification. Different magnifications can be adjusted according to the needs of the welding scene. The magnification of the beam mirror is 2-10 times.

When in use, focus the glasses on the eyepiece, and adjust the beam expander adjustment knob to the desired magnification of the field of view. The beam expanders on both sides can be adjusted to the same magnification, or can be adjusted to different magnifications to meet different needs. According to needs, the beam expander can be used to magnify the field of view (top view), or the lens can be protected by goggles A normal field of view observation (head-up) was performed.

In another embodiment, the goggles are also provided with a hood that is easy to wear, so that the welding operator can wear it on the head.

Example 2:

As shown in FIG. 3 , a beam expander magnifying goggles for laser hand-held welding includes goggles, and the goggles are provided with a beam expander.

The goggles include an outer frame of the goggles and a protective lens of the goggles, the protective lens of the goggles is mounted on the outer frame of the goggles, and the beam expander is mounted on the outer frame through a bracket.

The bracket is a reversible structure. In this embodiment, the bracket is a metal wire, and the position of the beam expander can be adjusted through the bracket to suit the interpupillary distance of the user's glasses. At the same time, the beam expander can be placed outside the protective lens of the goggles through the bracket as required. For magnified observation of the field of view, the bracket can also be turned over, so that the beam expander is placed above the protective lens of the goggles, and the normal field of view is observed through the protective lens of the goggles. At this time, the normal field of view observation is better.

The goggles are provided with an LED light source, the LED light source is a rechargeable structure, and the battery capacity is larger, which is convenient for long-term use.

The protective lens of the goggles and the objective lens of the beam expander are provided with a laser protective film.

The beam expander is provided with an adjustment knob to adjust the distance between the eyepiece and the objective lens on the beam expander through the adjustment knob, thereby adjusting the magnification. Different magnifications can be adjusted according to the needs of the welding scene, and the adjustment knob adjusts the beam expansion. The magnification of the mirror is 2-10 times.

Example 3:

A beam expander magnifying goggles for laser hand-held welding, including goggles, the goggles are provided with a beam expander. Among them, there is one beam expander, and in another embodiment, there are two.

The goggles include a goggle protection lens, the goggle protection lens is provided with an installation hole, and the beam expander is installed in the installation hole.

The goggles are provided with LED light sources. In this embodiment, the LED light source is powered by dry batteries, and is provided with a rotary rheostat, through which the brightness of the LED can be adjusted to meet the needs of different light and dark welding scenarios. The scene can be adjusted to facilitate observation during the welding process.

The protective lens of the goggles and the objective lens of the beam expander are provided with a laser protective film. The laser protective film is attached to the goggles to protect the surface of the lens and objective lens. If the laser protective film is scratched, it can be removed and re-attached. The operation is simple and the maintenance cost is saved.

The beam expander is provided with an adjustment knob, and the distance between the eyepiece and the objective lens on the beam expander is adjusted through the adjustment knob, thereby adjusting the magnification. Different magnifications can be adjusted according to the needs of the welding scene. The magnification of the beam mirror is 2-10 times.

The goggles are installed on the fixed seat of the welding table, and can be fixed and installed by fasteners without manual wearing. It can also realize the switching between the normal field of view and the enlarged field of view, and can be adjusted to a reasonable magnification through the beam expander. , to achieve precise positioning operation in the welding process.

Claims (10)

1. The utility model provides a expand and enlarge goggles for handheld welding of laser which characterized in that: the novel goggle comprises goggles, wherein a beam expander is arranged on each goggle.

2. The expanded-beam amplification goggles for laser hand-held welding of claim 1, wherein: the goggles comprise goggles protection lenses, mounting holes are formed in the goggles protection lenses, and the beam expander is mounted in the mounting holes.

3. The expanded-beam amplification goggles for laser hand-held welding of claim 1, wherein: the goggles comprise a goggle outer frame and goggle protective lenses, the goggle protective lenses are arranged on the goggle outer frame, and the beam expanding lenses are arranged on the outer frame through the supports.

4. The expanded-beam amplification goggles for laser hand-held welding as claimed in claim 3, wherein: the bracket is of a reversible structure.

5. The goggles for laser hand-held welding according to any one of claims 1-3, wherein said goggles are provided with L ED light source.

6. The expanded-beam amplification goggles for laser hand-held welding of claim 5, wherein: and a laser protective film is arranged on the goggles protective lens and/or the objective lens of the beam expander.

7. The expanded-beam amplification goggles for laser hand-held welding of claim 1, wherein: and the beam expanding lens is provided with an adjusting knob.

8. The expanded-beam amplification goggles for laser hand-held welding of claim 7, wherein: the adjusting knob adjusts the amplification factor of the beam expanding lens to be 2-10 times.

9. The expanded-beam amplification goggles for laser hand-held welding of claim 1, wherein: the goggles are provided with a headband convenient to wear.

10. The expanded-beam amplification goggles for laser hand-held welding of claim 1, wherein: the goggles are mounted on the fixed seat of the welding table.

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