CN222071492U - An external laser module and laser processing equipment for indicating light - Google Patents

Abstract

The application relates to the field of laser equipment, in particular to an external laser module of indicating light and laser processing equipment. The external laser module of the indicating light comprises a working laser component, an indicating laser component and a dichroic mirror, wherein the working laser component comprises a first shell and a working laser generating unit, and the indicating laser component comprises a second shell and an indicating laser generating unit. The working laser generating unit and the indicating laser generating unit are respectively positioned in the first shell and the second shell, the heat influence between the working laser generating unit and the second shell is small, the first shell and the second shell are connected through bolts, the indicating laser generating unit is convenient to replace and maintain, and the maintenance cost is low. The working laser generating unit outputs working laser, the indicating laser generating unit generates indicating laser, the working laser and the indicating laser are combined through the dichroic mirror, and the optical fiber is not used for combining, so that the manufacturing cost of the laser can be reduced. The laser processing equipment comprises an external laser module of the indicating light and a protective shell.

Description

External laser module of pilot light and laser processing equipment

Technical Field

The utility model relates to the field of laser equipment, in particular to an external laser module of indicating light and laser processing equipment.

Background

Applications of the laser device in the field of material treatment include laser marking, laser surface roughening treatment, laser surface modification treatment and the like. According to the visible range division of human eyes, lasers can be divided into visible lasers and invisible lasers, and when the invisible lasers are used for carrying out surface treatment on materials, the tracks of the lasers cannot be identified through the human eyes. In the prior art, visible light is used as indication light to be led into a light path, so that human eyes can observe the track of laser conveniently. The method for introducing the indication light includes a chip packaging method in which a chip emitting the indication laser light and a chip emitting the working laser light for material processing are mounted in the same laser housing, and the indication laser light and the working laser light are combined together by an optical element inside the laser housing, and an optical fiber is used for combining the indication light and the working laser light. Optical fiber combining refers to the injection of indicator light and laser light for material processing into the same optical fiber, thereby completing the combination.

The chip packaging method makes the replacement of the indication light output module in the laser difficult, and has higher maintenance cost and higher manufacturing cost.

Disclosure of utility model

In order to solve the above problems, it is necessary to provide an external laser module with indication light and a laser processing device, which saves manufacturing and maintenance costs and reduces the volume of the device.

According to a first aspect of the present application, there is provided an indication light external laser module comprising a working laser assembly, an indication laser assembly and a dichroic mirror. The working laser assembly comprises a first shell and a working laser generating unit, wherein the working laser generating unit is arranged in the first shell and used for outputting a working light source passing through the first through hole, and the first shell is provided with the first through hole. The indication laser assembly comprises a second shell and an indication laser generating unit, wherein the second shell is connected to one side, adjacent to the first through hole, of the first shell, the second shell is provided with a second through hole and a third through hole, the axis of the second through hole is intersected with that of the first through hole, the third through hole is aligned with the first through hole or the second through hole, and the indication laser generating unit is arranged in the second through hole and used for outputting indication laser. The working laser generating unit and the indicating laser generating unit are respectively positioned in two different shells, so that the heat influence between the working laser generating unit and the indicating laser generating unit is reduced, and the maintenance is convenient. The second shell is in butt joint with the first shell to form an adjusting space communicated with the first through hole, the second through hole and the third through hole, the dichroic mirror is connected with the second shell and is positioned in the adjusting space, and the dichroic mirror is inclined relative to the axis of the first through hole and the axis of the second through hole and is used for reflecting working laser or indicating laser so as to enable the working laser or the indicating laser to pass through the third through hole. The working laser and the indicating laser are directly combined through the dichroic mirror, other materials are not required to be introduced, and the manufacturing cost can be reduced.

The axis of the first via intersects the axis of the second via, and in some embodiments, a third via is positioned on the axis of the first via and aligned with the first via, the third via and the second via meeting at a reflective surface of a dichroic mirror, which reflects the indication laser light, and transmits the working laser light. The working laser light and the indicating laser light are output from the third through hole along the axis of the first through hole. In other embodiments, the third through hole is located on the axis of the second through hole, aligned with the second through hole, and the dichroic mirror reflects the working laser light, and transmits the indication laser light. The working laser light and the indicating laser light are output from the third through hole along the axis of the second through hole. The third through hole is aligned with the first through hole or the second through hole, and the working laser and the indicating laser can be coupled only by arranging one dichroic mirror, so that materials are saved, and the volume of the second shell is reduced.

The second casing includes connecting block and main casing, and the connecting block is formed by main casing along being close to the direction extension of first casing, and connecting block and first casing pass through bolted connection to make second casing and first casing detachable connection, be convenient for install and change the second casing.

In some embodiments, the main housing includes a first baffle, a second baffle, and a block, the second through hole and the second through hole are located in the block, the first baffle and the second baffle are parallel, the block is located between the first baffle and the second baffle, the block is connected with the first baffle and the second baffle to form a groove with one side open, and an opening of the groove is abutted with a side wall of the first housing provided with the first through hole to form an adjustment space.

In some embodiments, the block body is provided with a first inclined surface consistent with the inclination angle of the dichroic mirror, the dichroic mirror is positioned on the first inclined surface and is tightly attached to the first inclined surface, the fixing effect on the dichroic mirror is better, and the dichroic mirror is prevented from falling off or generating angle deviation.

In some embodiments, the block further has a second inclined surface intersecting the first inclined surface, the second inclined surface for abutting against the dichroic mirror, better positioning the dichroic mirror.

In some embodiments, the axis of the first through hole and the axis of the second through hole are perpendicular to each other, and the angles between the dichroic mirror and the axis of the first through hole and the axis of the second through hole are both 45 °, indicating that the light generating unit is arranged along the axial direction of the first housing, and the volume of the second housing is relatively small.

According to a second aspect of the present application, there is provided a laser processing apparatus comprising any one of the external laser modules of the first aspect of the present application and a protective housing. The external laser module of the indicating light has lower manufacturing and maintenance cost and smaller volume, so that the cost of the laser processing equipment can be controlled, and the weight of the equipment is reduced.

Firstly, according to the external indicating light laser of one or more embodiments of the application, the working laser component and the indicating laser component are connected through bolts, so that the indicating laser component is convenient to replace and maintain, and the maintenance cost is low. The working laser generating unit and the indicating laser generating unit are located in different housings, and the thermal influence of the indicating laser generating unit on the working laser generating unit can be reduced. The working laser and the indicating laser are combined through the dichroic mirror, and the optical fiber is not used for combining, so that the manufacturing cost of the laser can be reduced.

Further, according to the external indicating light laser of one or more embodiments of the present application, the direction in which the indicating laser generating unit is disposed is perpendicular to the axis of the first through hole, so that the width of the second housing in the axis direction of the first through hole is relatively small, and at the same time, the first inclined surface is disposed in the second housing, on which the dichroic mirror is disposed, the indicating laser generating unit is disposed close to the dichroic mirror, so that the length of the second housing in the axis direction of the second through hole is relatively small, thereby making the volume of the second housing relatively small.

Drawings

The utility model is further described below with reference to the drawings and examples.

FIG. 1 is a schematic diagram of an external laser module with indication light according to an embodiment of the present application;

FIG. 2 is a schematic view of a first view of a second housing according to an embodiment of the present application;

FIG. 3 is a schematic view of a second housing according to an embodiment of the present application;

FIG. 4 is a schematic view of a second housing with a regular block according to one embodiment of the application;

FIG. 5 is a schematic cross-sectional view of an external laser module with indication light according to an embodiment of the present application;

FIG. 6 is a schematic cross-sectional view of an external laser module with indication light according to another embodiment of the present application;

Fig. 7 is a schematic view of a laser processing apparatus according to an embodiment of the present application.

Description of main elements:

100. a laser processing device;

10. an external laser module of the indicating light;

1. A working laser assembly; 11. a first housing; 12. a working laser generating unit; 13. a first through hole;

2. An indication laser assembly; 21. a second housing; 211. a connecting block; 212. a main housing; 2121. a first baffle; 2122. a second baffle; 2123. a block; 22. an instruction laser generating unit; 23. a second through hole; 24. a third through hole; 25. bolt holes; 26. a first inclined surface; 27. a second inclined surface; 28. adjusting the space; 29. a tank body;

3. a dichroic mirror;

20. A protective housing;

x, a first axis; y, second axis.

Detailed Description

For a clearer description of objects, technical solutions and advantages of the present utility model, hereinafter, embodiments of the present utility model will be described with reference to the accompanying drawings, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. It should be understood that these embodiments are merely illustrative of the principles of the present utility model and are not to be construed as limiting the technology or application and use of the technology disclosed herein.

It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between different objects and not necessarily for indicating or claiming a particular relationship or order between such objects. Moreover, the terms "parallel" and "perpendicular" are used to describe an ideal state between two objects, and in an actual production or use state, an approximately perpendicular state may exist between the two objects.

Referring to fig. 1 and 2, in a first aspect of the present application, there is provided an external indicating light laser module 10 including a working laser assembly 1, an indicating laser assembly 2 and a dichroic mirror 3, the working laser assembly 1 including a first housing 11 and a working laser generating unit 12, the indicating laser assembly 2 including a second housing 21 and an indicating laser generating unit 22. The working laser generating unit 12 is disposed in the first housing 11, the first housing 11 is provided with a first through hole 13, the second housing 21 is connected to a side of the first housing 11 adjacent to the first through hole 13, the second housing 21 is provided with a second through hole 23 and a third through hole 24, and the indicating laser generating unit 22 is disposed in the second through hole 23. The working laser generating unit 12 outputs a working light source, instructs the laser generating unit 22 to output an instruction laser, the working light source enters the second housing 21 from the first through hole 13, and the instruction laser outputs the second housing 21 from the third through hole 24. The working laser generating unit 12 and the indicating laser generating unit 22 are respectively located in two different housings, reducing the thermal influence therebetween, and facilitating maintenance.

The second housing 21 and the first housing 11 are butted to form an adjustment space 28 communicating with the first through hole 13, the second through hole 23 and the third through hole 24, and the dichroic mirror 3 is positioned in the adjustment space 28 and connected to the second housing 21. The dichroic mirror 3 is inclined with respect to a first axis X, which is the axis of the first through hole 13, and a second axis Y, which is the axis of the second through hole 23. The dichroic mirror 3 is for reflecting the working laser light or the indicating laser light so that the working laser light or the indicating laser light passes through the third through hole 24. The working laser and the indicating laser are directly combined through the dichroic mirror 3, and other materials are not required to be introduced, so that the manufacturing cost can be reduced.

Referring to fig. 2 and 3, the second housing 21 includes a connection block 211 and a main housing 212, the connection block 211 is formed by extending the main housing 212 along a direction approaching the first housing 11, the main housing 212 contacts with a sidewall of the first housing 11 provided with the first through hole 13, the adjusting space 28, the second through hole 23 and the third through hole 24 are all located on the main housing 212, the connection block 211 can be fixed on any sidewall of the first housing 11 adjacent to the first through hole 13, and the connection block 211 is matched with the main housing 212 to realize positioning matching of the second housing 21 and the first housing 11. The connection manner of the connection block 211 and the first housing 11 is not limited, and for example, the connection block 211 may be provided with two bolt holes 25, the bolt holes 25 on each connection block 211 are provided with two bolts, the connection block 211 is connected with the side wall of the first housing 11 adjacent to the first through hole 13 through the bolts, so that the second housing 21 is detachable relative to the first housing 11, and the second housing 21 is convenient to be installed and replaced. The number of the connection blocks 211 is not fixed, in some embodiments, the number of the connection blocks 211 is two, the shape of the second housing 21 is approximately in a "U" shape, and the two connection blocks 211 are located at opposite ends of the main housing 212 and fixed to opposite sides of the side wall of the first housing 11 provided with the first through hole 13, so that the connection structure of the first housing 11 and the second housing 21 is more stable; in other embodiments, the number of the connection blocks 211 is one, and the shape of the second housing 21 is substantially "L" shape, so as to reduce the difficulty of installation and removal.

The main housing 212 includes a first baffle 2121, a second baffle 2122, and a block 2123, the first baffle 2121 and the second baffle 2122 being parallel, the block 2123 being located between the first baffle 2121 and the second baffle 2122, one side of the block 2123 being connected to the first baffle 2121, and the other side being connected to the second baffle 2122. The cross section of the block 2123 parallel to the first baffle 2121 and the second baffle 2122 is in an approximately concave structure, the block 2123, the first baffle 2121 and the second baffle 2122 are connected to form a groove 29 with an opening at one side, and the connection mode of the block 2123 and the first baffle 2121 and the second baffle 2122 includes but is not limited to screw connection and integral molding. The opening of the groove 29 is abutted with the side wall of the first housing 11 provided with the first through hole 13 to form an adjustment space 28, and the dichroic mirror 3 is located in the adjustment space 28 and is connected with the first baffle 2121 or the block 2123. It should be noted that, the first baffle 2121 and the second baffle 2122 serve to protect the dichroic mirror 3 in the adjustment space 28, and in some embodiments, the main housing 212 may not be provided with the first baffle 2121 and the second baffle 2122, and the dichroic mirror 3 is fixed on the block 2123, so as to reduce the weight of the external laser module 10.

Referring to fig. 4, in some embodiments, the dichroic mirror 3 is connected to the first baffle 2121, and the block 2123 has three inner sides with respect to the groove 29, where two inner sides are parallel to each other, and the other inner side is located between and perpendicular to the two parallel inner sides, so that the groove 29 is generally rectangular in shape, and the manufacturing difficulty is relatively low.

Referring to fig. 5, in some embodiments, the dichroic mirror 3 has a working surface and a side surface adjacent to the working surface, and the working laser light and the indicating laser light are both directed to the working surface of the dichroic mirror 3, and the inclination angle of the dichroic mirror 3 is understood to be the inclination angle of the working surface of the dichroic mirror 3. The block 2123 has a first inclined surface 26 matching the inclination angle of the dichroic mirror 3, and the working surface of the dichroic mirror 3 is located on the first inclined surface 26 and closely contacts the first inclined surface 26, thereby improving the fixing effect of the dichroic mirror 3 and preventing the dichroic mirror 3 from falling off or being angularly offset. The second through hole 23 penetrates the first inclined surface 26, and the indication laser light generating unit 22 located in the second through hole 23 is disposed close to the dichroic mirror 3 such that the length of the second housing 21 in the second axis Y direction is relatively small.

In some embodiments, block 2123 further has a second inclined surface 27 intersecting first inclined surface 26, second inclined surface 27 being adjacent to first inclined surface 26, second inclined surface 27 being configured to abut against a side surface of dichroic mirror 3, position dichroic mirror 3, and fix dichroic mirror 3 more effectively, reducing occurrence of offset of position and angle of dichroic mirror 3. Alternatively, the side shape of the dichroic mirror 3 is rectangular, and the contact area of the second inclined surface 27 with the dichroic mirror 3 can be increased.

The block 2123 is provided with a second through hole 23 and a third through hole 24, the first axis X intersects with the second axis Y, the indication laser generating unit 22 outputs an indication laser along the second axis Y, the working laser generated by the working laser generating unit 12 enters the adjustment space 28 along the first axis X, the working laser and the indication laser intersect with the dichroic mirror 3 in the adjustment space 28, and then propagate together to the third through hole 24, and finally output from the third through hole 24.

Referring to fig. 5, in some embodiments, the third through hole 24 is located on the first axis X and aligned with the first through hole 13, the second through hole 23 and the third through hole 24 meet at the reflecting surface of the dichroic mirror 3, and the working laser light passes through the dichroic mirror 3, and indicates that the laser light is output from the third through hole 24 along the first axis X together with the working laser light after being reflected by the dichroic mirror 3.

Referring to fig. 6, in other embodiments, the third through hole 24 is located on the second axis Y and aligned with the second through hole 23, so that the indicating laser light passes through the dichroic mirror 3, and the operating laser light is reflected by the dichroic mirror 3 and the indicating laser light is output from the third through hole 24 along the second axis Y. The third through hole 24 is aligned with the first through hole 13 or the second through hole 23, and the working laser and the indicating laser can be coupled only by arranging one dichroic mirror 3, so that materials are saved, and the manufacturing cost is reduced.

The dichroic mirror 3 bisects the angle between the first axis X and the second axis Y, and optionally, the dichroic mirror 3 forms an angle of 45 ° with the first axis X and the second axis Y, which are perpendicular to each other, indicating that the laser generating unit 22 is located in the second through hole 23, and is disposed perpendicular to the first axis X, so that the width of the second housing 21 in the direction of the first axis X is relatively small.

Referring to fig. 7, in a second aspect of the present application, a laser processing apparatus 100 is provided, and the laser processing apparatus 100 may be a laser welding apparatus, a laser cutting apparatus, a laser engraving apparatus, or the like, for outputting laser light and processing a workpiece. The laser processing apparatus 100 includes the external laser module 10 of the indicating light and the protective case 20 according to any of the above embodiments. The external laser module 10 of the indicating light is located in the protection casing 20, and the protection casing 20 protects and fixes the external laser module 10 of the indicating light. Since the manufacturing and maintenance costs of the external laser module 10 for the indicating light are low, the volume is small, the manufacturing and maintenance costs of the laser processing apparatus 100 are reduced to some extent, and the weight of the apparatus is also light.

In summary, the present application provides an external indicating light laser module 10 and a laser processing apparatus 100, where the external indicating light laser module 10 includes a working laser component 1, an indicating laser component 2, and a dichroic mirror 3, the working laser component 1 includes a first housing 11 and a working laser generating unit 12, and the indicating laser component 2 includes a second housing 21 and an indicating laser generating unit 22. The working laser light generating unit 12 and the instruction laser light generating unit 22 are respectively located in the first housing 11 and the second housing 21, and the thermal influence of the instruction laser light generating unit 22 on the working laser light generating unit 12 can be reduced. The first housing 11 and the second housing 21 are connected by bolts, so that the indicating laser generating unit 22 can be replaced and maintained conveniently, and the maintenance cost is low. The working laser generating unit 12 and the instruction laser generating unit 22 output working laser light and instruction laser light, respectively, and the working laser light and the instruction laser light are coupled by the dichroic mirror 3, so that the manufacturing cost of the laser can be reduced without using an optical fiber for beam combination. The first casing 11 is provided with the first through hole 13, the second casing 21 is provided with the second through hole 23 and the third through hole 24, the axis of the first through hole 13 is vertical to the axis of the second through hole 23, the third through hole 24 is aligned with the first through hole 13 or the second through hole 23, the laser generating unit 22 is indicated to be positioned in the second through hole 23, the axis vertical to the first through hole 13 is arranged, the width of the second casing 21 in the direction of the axis of the first through hole 13 is made to be relatively smaller, meanwhile, the first inclined surface 26 is arranged in the second casing 21, the dichroic mirror 3 is placed on the first inclined surface 26, the laser generating unit 22 is indicated to be arranged close to the dichroic mirror 3, and the length of the second casing 21 in the direction of the axis of the second through hole 23 is made to be relatively smaller, so that the volume of the second casing 21 is made relatively smaller.

It is to be understood that the embodiments of the present application disclosed above are for convenience of description and examples only, and that technical solutions obtained by simple modification or equivalent substitution using the above examples by those skilled in the art should fall within the scope of the present application as claimed.

Claims (9)

1. An external laser module of pilot light, its characterized in that, external laser module of pilot light includes:

The working laser assembly comprises a first shell and a working laser generating unit, wherein the first shell is provided with a first through hole, and the working laser generating unit is arranged in the first shell and is used for outputting a working light source passing through the first through hole;

The indication laser assembly comprises a second shell and an indication light generation unit, wherein the second shell is connected with the first shell and is adjacent to the first through hole, the second shell and the first shell are in butt joint to form an adjustment space communicated with the first through hole, the second shell is provided with a second through hole and a third through hole communicated with the adjustment space, the axis of the second through hole is intersected with the axis of the first through hole, the third through hole is opposite to the first through hole or the second through hole, and the indication light generation unit is arranged in the second through hole and is used for outputting indication laser;

The dichroic mirror is connected with the second shell, is positioned in the adjusting space, is inclined relative to the axis of the first through hole and the axis of the second through hole, and is used for reflecting the working laser and transmitting the indicating laser or reflecting the indicating laser and transmitting the working laser so as to enable the working laser and the indicating laser to be coupled and emitted from the third through hole.

2. The external laser module of claim 1, wherein the third through hole is located on an axis of the second through hole and aligned with the second through hole, and the dichroic mirror reflects the working laser light for the transmission of the indication laser light.

3. The external laser module of claim 1, wherein the third through hole is located on an axis of the first through hole and aligned with the first through hole, the third through hole and the second through hole meet on a reflecting surface of the dichroic mirror, and the dichroic mirror reflects the indicating laser light for the working laser light to penetrate.

4. The external laser module according to claim 2 or 3, wherein the second housing includes a connection block and a main housing, the connection block is formed by the main housing extending in a direction approaching the first housing, the connection block and the first housing are connected adjacent to a side wall of the first through hole, and the adjustment space, the second through hole, and the third through hole are all located in the main housing.

5. The external laser module according to claim 4, wherein the main housing includes a first baffle, a second baffle and a block, the second through hole and the third through hole are located in the block, the first baffle and the second baffle are parallel, the block is located between the first baffle and the second baffle, a groove body with an opening on one side is formed by connecting the first baffle and the second baffle, and an opening of the groove body is butted with a side wall of the first through hole of the first housing to form the adjustment space.

6. The external laser module according to claim 5, wherein the block has a first inclined surface having an inclination angle identical to that of the dichroic mirror, the first inclined surface is located in the adjustment space, the first inclined surface is penetrated by the second through hole, and the dichroic mirror is located on the first inclined surface and is attached to the first inclined surface.

7. The indicating light external laser module according to claim 6, wherein the block body further has a second inclined surface intersecting the first inclined surface, the second inclined surface being adjacent to the first inclined surface, the second inclined surface abutting against a side surface of the dichroic mirror.

8. The indicator light external laser module according to claim 1, wherein an axis of the first through hole and an axis of the second through hole are perpendicular to each other.

9. A laser processing device, characterized by comprising the external laser module of indication light according to any one of claims 1 to 8 and a protective housing, wherein the external laser module of indication light is located in the protective housing.