CN216096963U

CN216096963U - Laser light path module and sheet punching system

Info

Publication number: CN216096963U
Application number: CN202122411187.2U
Authority: CN
Inventors: 不公告发明人
Original assignee: Guangdong Lyric Robot Intelligent Automation Co Ltd
Current assignee: Guangdong Lyric Robot Automation Co Ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-03-22
Anticipated expiration: 2031-09-30

Abstract

The utility model provides a laser light path module and a sheet punching system, which comprise a beam splitting unit, a scanning unit and a focusing unit, wherein the beam splitting unit is used for receiving laser from upstream, the laser comprises a first laser and a second laser, the beam splitting unit comprises a first partial reflector, the first laser is incident from one surface of the first partial reflector, the second laser is incident from the other surface of the first partial reflector, the scanning unit is positioned at the downstream of the beam splitting unit, and the focusing unit is positioned at the downstream of the scanning unit. The beam splitting unit divides laser emitted by the light source into a plurality of beams, the laser light path module can process a plurality of positions simultaneously, the first laser and the second laser process an object to be processed together, the processing power of the laser emitted by the laser light path module is improved, and the laser light path module can improve the processing efficiency of beam splitting laser processing by arranging the beam splitting unit which can receive the first laser and the second laser.

Description

Laser light path module and sheet punching system

Technical Field

The utility model relates to the field of laser processing, in particular to a laser light path module and a sheet punching system.

Background

At present, high-speed laser processing techniques such as laser drilling, laser cleaning, laser scribing, laser cutting, and laser surface treatment are becoming popular. The laser cutting has the advantages of long service life, low cost, no abrasion and the like. The existing laser processing technology is divided into two types, one is that a single laser beam is matched with a vibrating mirror, and an object is processed through scanning of the vibrating mirror, and the other is that the single laser beam from a light source is divided into a plurality of laser beams, and then the vibrating mirror is used for scanning the plurality of laser beams simultaneously.

However, the above processing technology has certain defects, the processing speed of the single laser beam is slow, and the requirement of the pole piece production technology for faster and faster production speed is difficult to meet.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a laser optical path module and a sheet punching system, wherein the laser optical path module can improve the processing efficiency of beam splitting laser processing.

The laser optical path module provided by the utility model comprises a beam splitting unit, a scanning unit and a focusing unit, wherein the beam splitting unit is used for receiving laser from upstream, the beam splitting unit is used for splitting the laser, the laser comprises a first laser and a second laser, the beam splitting unit comprises a first partial reflector, the first laser is incident from one surface of the first partial reflector, the second laser is incident from the other surface of the first partial reflector, the scanning unit is positioned at the downstream of the beam splitting unit, the scanning unit is used for deflecting the laser, the focusing unit is positioned at the downstream of the scanning unit, and the focusing unit is used for focusing the laser.

The laser light path module provided by the utility model at least has the following technical effects: the laser that the beam splitting unit sent the light source divide into the multibeam, and laser light path module can process a plurality of positions simultaneously, has improved machining efficiency, and processing object is treated jointly to first laser and second laser, has improved the machining power of the laser that laser light path module jetted out, and then has improved machining efficiency, through setting up the beam splitting unit that can receive first laser and second laser, laser light path module can improve beam splitting laser machining's machining efficiency.

According to some embodiments of the present invention, the reflected light of the first laser light passing through the first partial mirror and the transmitted light of the second laser light passing through the first partial mirror are combined, and the transmitted light of the first laser light passing through the first partial mirror and the reflected light of the second laser light passing through the first partial mirror are combined.

According to some embodiments of the utility model, the beam splitting unit comprises two second partial mirrors, the second partial mirrors being located downstream of the reflected and refracted light paths of the first partial mirror, respectively.

According to some embodiments of the utility model, the first partial mirror and the second partial mirror are half mirrors.

According to some embodiments of the utility model, the beam splitting unit comprises a total reflection mirror for adjusting the beam path.

According to some embodiments of the utility model, the scanning unit comprises a galvanometer first mirror for deflecting the laser light in a first direction.

According to some embodiments of the utility model, the scanning unit comprises a plurality of said galvanometer first mirrors, each said galvanometer first mirror for deflecting one or more said laser beams.

According to some embodiments of the utility model, the scanning unit comprises a galvanometer second mirror disposed in pair with the galvanometer first mirror, the galvanometer second mirror being downstream of the galvanometer first mirror for deflecting the laser light in a second direction.

According to some embodiments of the utility model, the focusing unit comprises a field lens for focusing the plurality of laser light beams.

According to the sheet punching system provided by the utility model, the sheet punching system comprises a light source and the laser path module provided by the utility model, wherein the light source comprises a first laser and a second laser, the light source is used for generating laser, and the laser comprises a first laser emitted by the first laser and a second laser emitted by the second laser.

According to the sheet punching system provided by the utility model, the laser path module provided by the utility model is used, so that the efficiency of laser punching can be improved.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic optical path diagram of a laser optical path module according to an embodiment of the present invention;

FIG. 2 is a schematic optical path diagram of a laser optical path module according to an embodiment of the present invention;

fig. 3 is a schematic optical path diagram of a laser optical path module according to an embodiment of the present invention.

Reference numerals:

a first partial mirror 110, a second partial mirror 120, a total reflection mirror 130,

A first mirror 210 of a galvanometer, a second mirror 220 of the galvanometer,

A field lens 300,

A first laser 410, a second laser 420,

The object 900 to be processed.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

The laser light path module provided by the utility model comprises a beam splitting unit, a scanning unit and a focusing unit, wherein the beam splitting unit is used for receiving laser from upstream, the beam splitting unit is used for splitting the laser, the laser comprises a first laser and a second laser, the beam splitting unit comprises a first partial reflector 110, the first laser is incident from one surface of the first partial reflector 110, the second laser is incident from the other surface of the first partial reflector 110, the scanning unit is positioned at the downstream of the beam splitting unit, the scanning unit is used for deflecting the laser, the focusing unit is positioned at the downstream of the scanning unit, and the focusing unit is used for focusing the laser.

When the laser processing device is used, the first laser is divided into two laser beams through the first partial reflector 110, and the two laser beams respectively penetrate through the beam splitting unit, the scanning unit and the focusing unit to process materials. The second laser beam is divided into two laser beams by the first partial reflector 110, and the two laser beams respectively pass through the beam splitting unit, the scanning unit and the focusing unit to process the material.

According to the laser light path module provided by the utility model, on one hand, the beam splitting unit divides the laser emitted by the light source into a plurality of beams, the laser light path module can process a plurality of positions simultaneously, the processing efficiency is improved, on the other hand, the first laser and the second laser jointly process the object to be processed 900, the processing power of the laser emitted by the laser light path module is improved, the processing efficiency is further improved, and the laser light path module can improve the processing efficiency of beam splitting laser processing by arranging the beam splitting unit capable of receiving the first laser and the second laser.

Here, the first laser light and the second laser light together may be embodied in various forms to process the object 900 to be processed. The first laser light and the second laser light may be superimposed on each other or may be offset in time or space.

In some embodiments, the reflected light of the first laser passing through the first partial mirror 110 and the transmitted light of the second laser passing through the first partial mirror 110 are combined, and the transmitted light of the first laser passing through the first partial mirror 110 and the reflected light of the second laser passing through the first partial mirror 110 are combined. At the moment, the first laser and the second laser are output after being superposed, so that the effect of enhancing the processing power is achieved, and the processing efficiency is improved.

In some embodiments, such as in laser drilling, the first laser and the second laser coincide with each other at their focal points on the object, but the second laser has some lag relative to the first laser. At this time, the first laser firstly processes the object, and then the second laser rapidly processes the object for the second time, so that the processing power can be enhanced.

In some embodiments, the focal point of the first laser is located at a first point of the processing region of the object, the focal point of the second laser is located at a second point of the processing region of the object, a space exists between the first point and the second point, and the laser path module processes the processing region through the first point and the second point and can also play a role in enhancing the processing power.

It is understood that the beam splitting unit may further split the laser light after being split by the first partial mirror 110. The first partial reflector 110 may be a half-mirror or a partial reflector with other proportions according to the requirement of the optical path design.

According to some embodiments of the present invention, the beam splitting unit comprises two second partial mirrors 120, the second partial mirrors 120 being located downstream of the reflected and refracted light paths of the first partial mirror 110, respectively. The second partial reflecting mirror 120 divides the two light beams generated by the first partial reflecting mirror 110 into four light beams, so that the processing efficiency of the laser optical path module can be further improved. Of course, more partial mirrors may be provided, for example, a third partial mirror may be provided downstream of the second partial mirror 120, so as to divide the output of the laser path module into more beams.

In some embodiments, the beam splitting unit includes a total reflection mirror 130, and the total reflection mirror 130 is used to adjust the optical path. The total reflection mirror 130 can adjust the optical path of the first partial reflection mirror 110 and/or the second partial reflection mirror 120, so that the output of the beam splitting unit can meet the requirements of the downstream scanning unit. For example, referring to both embodiments of fig. 1 and 2, the laser light is divided into four beams by the first partial reflecting mirror 110 and the second partial reflecting mirror 120, and the total reflecting mirror 130 can adjust the optical paths of the beams of laser light divided by the beam splitting unit to be parallel, so that the scanning unit receives the laser light.

It should be emphasized that the second partially reflecting mirror 120 is not an essential component in the optical path, for example, referring to the embodiment of fig. 3, the laser light is divided into two beams by the first partially reflecting mirror 110, the total reflecting mirror 130 is located on the optical path of one of the laser light beams, and the total reflecting mirror 130 makes the two laser light beams divided by the first partially reflecting mirror 110 incident into the scanning unit in parallel.

According to some embodiments of the present invention, the scanning unit comprises a galvanometer first mirror 210, the galvanometer first mirror 210 being adapted to deflect the laser light in a first direction. The first lens of galvanometer can make the laser that laser light path module output scan on the object surface, makes laser light path module can accomplish work such as laser marking off, laser cutting, has richened the function of laser light path module.

In some embodiments, the scanning unit comprises a plurality of galvanometer first mirrors 210, each galvanometer first mirror 210 for deflecting one or more laser beams. The different first mirror pieces 210 of the galvanometer can independently scan according to the self-set parameters, so that the laser light path module can parallelly perform different scans, and the functions of the laser light path module are further enriched.

In some embodiments, the scanning unit comprises a galvanometer second mirror 220, the galvanometer second mirror 220 being arranged in pair with the galvanometer first mirror 210, the galvanometer second mirror 220 being downstream of the galvanometer first mirror 210, the galvanometer second mirror 220 being for deflecting the laser light in the second direction. The second direction is different from the first direction, and the galvanometer second lens 220 is combined with the galvanometer first lens 210, so that the scanning track of a one-dimensional straight line can be changed into a scanning track of a two-dimensional plane, and the functions of the laser light path module are further enriched.

According to some embodiments of the present invention, the focusing unit includes a field lens 300, and the field lens 300 is used to focus the plurality of laser lights. The field lens 300 can ensure the focusing quality of the laser light incident into the field lens 300 at different angles on the surface of the object 900 to be processed. The number of the field lens 300 may be one or more, and in some embodiments, the number of the first lens 210, the second lens 220 and the field lens 300 is one, so that the number of components of the laser path module can be reduced, which is beneficial to the miniaturization of the laser path module.

According to the sheet punching system provided by the utility model, the sheet punching system comprises a light source and the laser path module provided by the utility model, wherein the light source comprises a first laser 410 and a second laser 420, the light source is used for generating laser, and the laser comprises a first laser emitted by the first laser 410 and a second laser emitted by the second laser 420.

The laser optical path module provided according to the present invention is described in detail in a specific embodiment with reference to fig. 1. It is to be understood that the following description is illustrative only and is not intended as a specific limitation on the utility model.

The laser light path module comprises a beam splitting unit, a scanning unit and a focusing unit.

The beam splitting unit is used for receiving laser from upstream, the beam splitting unit is used for splitting laser, the laser comprises a first laser and a second laser, and the beam splitting unit comprises a first partial reflector 110, a second partial reflector 120 and a total reflector 130. The first laser beam is incident from one surface of the first partial reflecting mirror 110, the second laser beam is incident from the other surface of the first partial reflecting mirror 110, and the second partial reflecting mirror 120 is located downstream of the reflected optical path and the refracted optical path of the first partial reflecting mirror 110, respectively. The total reflection mirror 130 may adjust the optical paths of the respective laser beams split by the beam splitting unit to be parallel.

The scanning unit is located downstream of the beam splitting unit and comprises four galvanometer first mirrors 210 and four galvanometer second mirrors 220. Each galvanometer first lens 210 is configured to deflect a beam of laser light along a first direction, the galvanometer second lens 220 is disposed in pair with the galvanometer first lens 210, the galvanometer second lens 220 is located downstream of the galvanometer first lens 210, and the galvanometer second lens 220 is configured to deflect the laser light from the corresponding galvanometer first lens 210 along a second direction.

The focusing unit is located downstream of the scanning unit and comprises a field lens 300, the field lens 300 being used for focusing the laser beams.

According to the laser light path module provided by the embodiment of the utility model, by adopting the design, at least the following functions can be realized: the laser that the beam splitting unit sent the light source divide into the multibeam, and laser light path module can process a plurality of positions simultaneously, has improved machining efficiency, and processing object is treated jointly to first laser and second laser, has improved the machining power of the laser that laser light path module jetted out, and then has improved machining efficiency, through setting up the beam splitting unit that can receive first laser and second laser, laser light path module can improve beam splitting laser machining's machining efficiency.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A laser optical path module, comprising:

the laser beam splitter comprises a first partial reflector, wherein the first laser beam enters from one surface of the first partial reflector, and the second laser beam enters from the other surface of the first partial reflector;

a scanning unit located downstream of the beam splitting unit, the scanning unit to deflect the laser light;

a focusing unit located downstream of the scanning unit, the focusing unit to focus the laser light.

2. The laser optical path module of claim 1, wherein: and the reflected light of the first laser passing through the first partial reflector and the transmitted light of the second laser passing through the first partial reflector are combined into a beam, and the transmitted light of the first laser passing through the first partial reflector and the reflected light of the second laser passing through the first partial reflector are combined into a beam.

3. The laser optical path module of claim 1, wherein: the beam splitting unit comprises two second partial reflecting mirrors, and the second partial reflecting mirrors are respectively positioned at the downstream of the reflection light path and the refraction light path of the first partial reflecting mirror.

4. The laser optical path module of claim 3, wherein: the first partial reflector and the second partial reflector adopt half-transmitting and half-reflecting reflectors.

5. The laser optical path module according to claim 1 or 3, wherein: the beam splitting unit comprises a total reflection mirror, and the total reflection mirror is used for adjusting a light path.

6. The laser optical path module of claim 1, wherein: the scanning unit comprises a galvanometer first mirror, and the galvanometer first mirror is used for deflecting the laser along a first direction.

7. The laser optical path module of claim 6, wherein: the scanning unit comprises a plurality of galvanometer first mirrors, and each galvanometer first mirror is used for deflecting one or more laser beams.

8. The laser optical path module according to claim 6 or 7, wherein: the scanning unit comprises a galvanometer second lens, the galvanometer second lens and the galvanometer first lens are arranged in pairs, the galvanometer second lens is located at the downstream of the galvanometer first lens, and the galvanometer second lens is used for deflecting the laser along a second direction.

9. The laser optical path module according to claim 1 or 6, characterized in that: the focusing unit includes a field lens for focusing the plurality of laser lights.

10. A sheet punching system, characterized in that: a sheet perforation system comprising a light source and the laser light path module of any of claims 1 to 9, the light source comprising a first laser and a second laser, the light source for generating laser light, the laser light comprising a first laser light emitted by the first laser and a second laser light emitted by the second laser.