CN212526479U

CN212526479U - Switching block, laser output head assembly, laser and laser processing equipment

Info

Publication number: CN212526479U
Application number: CN202021107066.8U
Authority: CN
Inventors: 蒋峰; 雷剑; 许玉麟; 蒋远志; 张显清
Original assignee: Maxphotonics Co Ltd; Suzhou Maxphotonics Co Ltd
Current assignee: Maxphotonics Co Ltd; Suzhou Maxphotonics Co Ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-02-12
Anticipated expiration: 2030-06-15

Abstract

The utility model relates to a laser device technical field discloses a switching piece, laser instrument output head subassembly, laser instrument and laser beam machining equipment. The adapter block is applied to connecting a laser output head and a laser processing equipment processing head and comprises a base and a connecting part which are connected with each other. One end of the base is provided with a butt joint surface which is used for being abutted against the laser output end of the laser output head, so that the base and the laser output end can be easily installed through locking devices such as external threaded fasteners and the like. The connecting part is arranged at one end, deviating from the butt joint surface, of the base and is used for being connected with a machining head of the laser machining equipment in a matched mode. The adapter block has a simple structure, and can be conveniently connected with a laser output head and a laser processing equipment processing head; the connecting scheme that the traditional connecting female head is sleeved on a partial structure of the laser output head through the annular groove and is positioned through the conical mounting surface is replaced, and the cost of the laser processing equipment with the switching block can be effectively reduced.

Description

Switching block, laser output head assembly, laser and laser processing equipment

[ technical field ] A method for producing a semiconductor device

The embodiment of the utility model provides a relate to laser device technical field, especially relate to a switching piece, laser instrument output head subassembly, laser instrument and laser beam machining equipment.

[ background of the invention ]

With the development of science and technology, the laser processing technology is gradually mature, and compared with the traditional processing technology, the laser processing technology adopting the laser processing equipment has the advantages of simple operation and high efficiency.

At present, laser processing equipment on the market generally comprises a laser processing equipment processing head, a laser and a connecting female head respectively connected with the laser processing equipment processing head and the laser. The connecting female head is integrally of a cylindrical structure, one end of the connecting female head is connected with a processing head of laser processing equipment, and the other end of the connecting female head is provided with a conical first mounting surface and forms an annular groove; the laser comprises a laser output head, wherein a second mounting surface matched with the first mounting surface is arranged on the part of the structure of the periphery of a middle shaft of the laser output head, a middle shaft part of the laser extends into an inner hole connected with the female head, and the part of the structure of the periphery of the middle shaft extends into the groove, is positioned and mounted through the first mounting surface and the second mounting surface and is fixed through a special locking device.

The utility model discloses an inventor is realizing the utility model discloses an in-process discovery: in order to achieve better sleeving positioning between the laser output head and the connecting female head, the annular groove needs to have extremely high processing precision, which leads to increase of the cost of the laser processing equipment.

[ Utility model ] content

The embodiment of the utility model provides a aim at providing a switching piece, laser instrument output head subassembly, laser instrument and laser beam machining equipment to solve present laser beam machining equipment technical problem with high costs.

The embodiment of the utility model provides a solve its technical problem and adopt following technical scheme:

the utility model provides a switching piece for connect laser instrument output head and laser machining equipment processing head, base and connecting portion including interconnect, the one end of base is equipped with a butt face, the butt face be used for with the laser output butt of laser instrument output head, connecting portion locate the base deviates from the one end of butt face, connecting portion be used for with the supporting connection of laser machining equipment processing head.

As a further improvement of the above technical solution, the abutting surface is a plane, and a through hole penetrating through the base is provided on the abutting surface.

As a further improvement of the above technical solution, the connecting portion is annularly disposed on the periphery of the through hole and extends in a direction away from the base, and the surface of the connecting portion is provided with an external thread or an internal thread for engaging with the machining head of the laser machining device.

As a further improvement of the above technical solution, the abutting surface is provided with a positioning hole, and the positioning hole is used for matching with a matched positioning column on the laser output head;

the transfer block further comprises a sensor, the sensor is arranged at the position of the positioning hole, and the sensor is used for detecting the matching in-place condition of the positioning column and the positioning hole.

As a further improvement of the above technical solution, the base and the laser output end of the laser output head are respectively provided with a through mounting hole, and a threaded fastener penetrates through the mounting hole of the base and the mounting hole of the laser output end of the laser output head, so that the base and the laser output head are fixedly connected in a detachable manner.

a laser output head assembly comprises a laser output head and the switching block;

the laser output head comprises a main body and a fixing seat formed by extending one end of the main body outwards, wherein one end of the fixing seat departing from the main body is provided with a first abutting surface, the abutting surface on the base is a second abutting surface, and the first abutting surface abuts against the second abutting surface.

As a further improvement of the above technical solution, the fixing base and the base are shaped like a flat rectangular parallelepiped, and the first abutting surface and the second abutting surface are both flat surfaces.

As a further improvement of the above technical solution, one of the fixed seat and the base is provided with a positioning hole, the other of the fixed seat and the base is provided with a positioning column matched with the positioning hole, and the positioning column is used for matching with the positioning hole;

the laser output head assembly further comprises a sensor, the sensor is arranged at the position of the positioning hole, and the sensor is used for detecting the matching in-place condition of the positioning column and the positioning hole.

As a further improvement of the above technical solution, the fixing seat is fixed with the base by a threaded fastener;

the fixing seat is provided with a through first mounting hole, the base is provided with a through second mounting hole corresponding to the first mounting hole, and the threaded fastener penetrates through the first mounting hole and the second mounting hole and fixes the fixing seat and the base.

As a further improvement of the above technical solution, the sealing device further comprises a first sealing ring, wherein the second abutting surface is provided with a through hole penetrating through the base;

the first butt joint surface is provided with a first annular groove, the first annular groove is annularly arranged on the periphery of the through hole, and the first sealing ring is embedded in the first annular groove;

and/or the second abutting surface is provided with a first annular groove which is annularly arranged on the periphery of the through hole, and the first sealing ring is embedded in the first annular groove;

the laser output head also comprises a second sealing ring;

the base is equipped with the one end of connecting portion is equipped with the rampart, the rampart ring is located the periphery of connecting portion, the rampart with enclose between the connecting portion and close and form the second annular, the second sealing washer is inlayed and is located the second annular.

As a further improvement of the above technical solution, the main body includes:

an outer housing provided with an accommodating space;

the inner shell is integrally accommodated in the accommodating space, the inner shell and the outer shell are connected in a sealing mode and jointly enclose a cooling cavity, and the inner shell is provided with a through installation space;

the end cap is accommodated in the accommodating space and fixed with the inner shell, at least part of the end cap extends into the mounting space, and two ends of the end cap are positioned between two ends of the cooling cavity along the axial direction of the outer shell; and

the optical fiber is at least partially accommodated in the installation space, a first end part of the optical fiber is fixed with the end cap, and a second end part of the optical fiber penetrates through the installation space and extends out of the outer shell;

the outer shell is also provided with a first communicating port and a second communicating port which are respectively communicated with the cooling cavity;

the fixing seat is of a flange plate structure, and one end, far away from the second end, of the outer shell extends outwards to form the fixing seat.

As a further improvement of the above technical solution, a light-passing and heat-dissipating area is defined by the end cap, the end portion of the end of the inner shell close to the end cap, and the inner wall of the outer shell together, and the cooling cavity is at least partially annularly arranged on the periphery of the light-passing and heat-dissipating area.

As a further improvement of the above technical solution, an outer diameter of the outer shell is gradually increased or kept constant from the second end to the first end; and/or

The outer diameter of the inner housing is gradually increased or kept constant in a direction from the second end to the first end.

As a further improvement of the above technical solution, the inner shell and the outer shell are integrally formed; or,

the inner shell and the outer shell are respectively of two independent structures, and two ends of the inner shell are detachably connected with the inner wall of the outer shell in a sealing mode.

a laser comprises the switching block or the laser output head assembly.

a laser comprises a laser generating assembly, a controller and the laser output head assembly, wherein the laser generating assembly and a sensor are connected with the controller.

the utility model provides a laser processing equipment, includes laser processing equipment processing head and foretell laser instrument, laser processing equipment processing head with connecting portion fixed connection.

The utility model has the advantages that:

the embodiment of the utility model provides a switching piece is applied to and connects laser instrument output head and laser processing equipment processing head, and it includes interconnect's base and connecting portion. One end of the base is provided with a butt joint surface which is used for being abutted against the laser output end of the laser output head, so that the base and the laser output end can be easily installed through locking devices such as external threaded fasteners and the like. The connecting part is arranged at one end, deviating from the butt joint surface, of the base and is used for being connected with a machining head of the laser machining equipment in a matched mode.

Compared with the laser processing equipment in the current market, the embodiment of the utility model provides a simple structure of the adapter block, which can conveniently connect the laser output head and the processing head of the laser processing equipment; the connecting scheme that the traditional connecting female head is sleeved on a partial structure of the laser output head through the annular groove and is positioned through the conical mounting surface is replaced, and the cost of the laser processing equipment with the switching block can be effectively reduced.

[ description of the drawings ]

One or more embodiments are illustrated in drawings corresponding to, and not limiting to, the embodiments, in which elements having the same reference number designation may be represented as similar elements, unless specifically noted, the drawings in the figures are not to scale.

Fig. 1 is an exploded view of one direction of a laser output head assembly according to one embodiment of the present invention;

FIG. 2 is an exploded view of the laser output head assembly of FIG. 1 in another orientation;

FIG. 3 is a perspective view of the junction block of FIG. 1;

FIG. 4 is a schematic perspective view of the laser output head of FIG. 1;

FIG. 5 is a schematic view in cross-section in one direction of the laser output head of FIG. 4;

fig. 6 is a schematic cross-sectional view of the laser output head according to another embodiment of the present invention;

fig. 7 is a schematic perspective view of a partial structure in a laser processing apparatus according to an embodiment of the present invention.

[ detailed description ] embodiments

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is referred to as being "fixed to"/"mounted to" another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

In this specification, the term "mounting" includes fixing or limiting a certain element or device to a specific position or place by welding, screwing, clipping, bonding, etc., the element or device may be fixed or movable in a limited range in the specific position or place, and the element or device may be disassembled or not after being fixed or limited to the specific position or place, which is not limited in the embodiment of the present invention.

Referring to fig. 1 and fig. 2, which respectively show an exploded schematic view of a laser output head assembly provided by an embodiment of the present invention in two directions, the laser output head assembly includes a laser output head 100 and a transfer block 200. The laser output head 100 includes a main body 110 and a fixing base 120 formed by extending outward from one end of the main body 110; an abutting surface is disposed at an end of the fixing base 120 away from the main body 110, and for convenience of description, the abutting surface is hereinafter referred to as a first abutting surface 121, and the first abutting surface 121 is a plane. The transfer block 200 includes a base 210 and a connecting portion 220, wherein one end of the base 210 is provided with another contact surface, which will be referred to as a second contact surface 211 for the convenience of description, and the second contact surface 211 is a plane and contacts with the first contact surface 121; the base 210 is fixed to the fixing base 120 by a detachable connection. The connecting portion 220 is disposed at an end of the base 210 facing away from the second abutting surface 211, and the connecting portion 220 is used for connecting with an external machining head (not shown) of a laser machining device.

Referring to fig. 1 and 2, the laser output head 100 includes a main body 110 and a fixing base 120. The main body 110 has a cylindrical structure, and an installation space (not shown) is formed therein and axially penetrates the main body. One end of the main body 110 extends outwards to form a fixing seat 120 which is a flat cuboid integrally, and the fixing seat 120 forms a laser output end of the laser output head 100; in this embodiment, the fixing base 120 is a flange. One surface of the fixing base 120 facing away from the main body 110 is provided with a first abutting surface 121, the first abutting surface 121 is a plane, and one end of the installation space intersects with the first abutting surface 121 to form an opening.

Referring to the above-mentioned transfer block 200, specifically to fig. 3, a perspective view of one direction of the transfer block 200 is shown, and referring to fig. 1 and fig. 2, the transfer block 200 is used for connecting the laser output head 100 and a laser processing apparatus processing head (not shown), and includes a base 210 and a connecting portion 220 connected to each other. The base 210 has a substantially same overall structure as the fixing base 120, and has a flat rectangular parallelepiped structure. One end of the base 210 is provided with a second contact surface 211, and the second contact surface 211 is a plane. The base 210 is abutted with the first abutting surface 111 of the fixing base 120, i.e. the laser output end of the laser output head, through the second abutting surface 211, and is fixedly connected through a threaded fastener. In this embodiment, the fixing base 120 has a plurality of first through holes 122, and the first through holes 122 pass through the fixing base 120 along the extending direction of the main body 110; a second mounting hole 212 is formed through the base 210 at a position corresponding to the first mounting hole 122, and the second mounting hole 212 penetrates the base 210 in the axial direction of the body 110; the threaded fastener passes through the first mounting hole 122 and the second mounting hole 212 and locks and fixes the fixing base 120 and the base 210, namely: so that the base 210 and the fixing base 120 are fixedly connected in a detachable manner. It is understood that, in other embodiments of the present invention, the fixing seat 120 and the base 210 can be fixed by other detachable connection methods such as a buckle, which are not described in detail herein. The second contact surface 211 of the base 210 is provided with a through hole penetrating therethrough in the direction in which the body 110 extends, the through hole communicating with an opening at one end of the mounting space near the base 210. The connecting portion 220 is disposed at an end of the base 210 away from the second abutting surface 211, integrally surrounds the periphery of the through hole, extends in a direction away from the base 210, and is configured to be connected with a processing head of a laser processing device configured with the connecting portion. In this embodiment, the outer wall of the connecting portion 220 is provided with an external thread, and the external thread is specifically in occlusion connection with the processing head of the laser processing equipment; it is understood that, in other embodiments of the present invention, the connecting portion 220 may also be provided with an internal thread on the inner wall, and is connected to the processing head of the laser processing apparatus through the internal thread.

Further, in order to facilitate the fixed mounting between the fixing base 120 and the base 210, the laser output head assembly further includes a pre-positioning module. Specifically, referring to fig. 1 to fig. 3, the pre-positioning module includes a positioning hole 123 and a positioning post 213 that are matched with each other. In this embodiment, the positioning hole 123 is disposed on the first abutting surface 111 of the fixing base 120, and the positioning post 213 adapted to the positioning hole 123 is disposed at the corresponding position on the second abutting surface 211 of the base 210, and the positioning post 213 is used for cooperating with the positioning hole 123. It is understood that in other embodiments of the present invention, the positioning hole 123 can also be disposed on the base 210, and accordingly, the positioning pillar 213 is disposed on the fixing base 120. The pre-positioning module can realize the pre-positioning of laser output head 100 and switching block 200 before the installation of threaded fastener on the one hand, and on the other hand can also prevent to take place to rotate between fixing base 120 and base 210 at the in-process of threaded fastener installation, thereby avoids laser output head 100 rotatory and drive the rotatory drawback of damaging the optic fibre of optic fibre in the installation.

Furthermore, since the connecting portion 220 of the adapter block 200 is connected to the processing head of the laser processing device, the laser with the laser output head assembly can be timely installed according to the matching of the laser output head 100 and the adapter block 200, and then the installation situation of the laser output head 100 and the processing head of the laser processing device can be indirectly known through the matching installation situation, so as to determine whether to emit laser, and the laser output head assembly further includes the sensor 124. Specifically, the laser comprises the laser output head assembly, a laser generating assembly and a controller. The sensor 124 is disposed at the positioning hole 123 and is used for detecting the in-place matching condition of the positioning column 213 and the positioning hole 123; the sensor 124 and the laser generating assembly are connected to the controller. Then, when the laser output head 100 and the transfer block 200 are mounted in place, the sensor 124 detects the in-place mounting information and sends the in-place mounting information to the controller, and the controller can control the laser generating assembly to emit light; when the laser output head 100 and the transfer block 200 are not installed in place, the controller controls the laser generating assembly not to emit light. Optionally, the sensor 124 is a photosensitive sensor, and it can be understood that the utility model discloses do not specifically limit to specific kind, model of sensor 124, sensor 124 can also be other sensors such as switch on sensor, piezoelectric sensor, as long as it can realize detecting the installation information between this laser output head and the laser processing equipment processing head. Furthermore, even though the sensor 124 is mounted on the laser output head in the present embodiment, the present invention is not limited thereto; for example, in some other embodiments of the present invention, the adapting block is provided with a positioning hole, the fixing seat of the laser output head is correspondingly provided with a positioning column, and the adapting block further includes a sensor disposed at the positioning hole on the adapting block for detecting the in-place condition of the positioning column and the positioning hole.

Further, in order to enhance the sealing effect between the fixing base 120 and the base 210, the laser output head assembly further includes a first sealing ring 130. Specifically, the second abutting surface 211 is provided with a first annular groove 214, and the first annular groove 214 is annular and is arranged around the periphery of the through hole and the installation space; the first sealing ring 130 is embedded in the first annular groove 214, and is tightly abutted to the base 210 and the fixing seat 120, so as to prevent impurities such as water, dust and the like in the external environment from entering the through hole and the installation space. It is understood that, in other embodiments of the present invention, the first ring groove may be disposed on the first abutting surface and annularly disposed on the periphery of the through hole and the installation space.

Similarly, to enhance the sealing effect between the adapter block 200 and the machining head of the laser machining apparatus, the laser output head assembly further includes a second sealing ring 230. Specifically, one end of the base 210, which is provided with the connecting portion 220, is provided with an annular wall 215, which is integrally thin and cylindrical, the annular wall 215 is arranged around the periphery of the connecting portion 220, and a second annular groove (not shown) is formed between the annular wall 215 and the connecting portion 220, and the second sealing ring 230 is embedded in the second annular groove. In a similar way, the second sealing ring 230 can effectively prevent impurities such as water, dust and the like in the external environment from entering the through hole and the installation space.

The thickness of the transition block can be varied according to the actual optical fiber arrangement, and in particular, transition blocks having bases of different thicknesses can be used.

The embodiment of the utility model provides a laser output head subassembly includes laser output head 100 and switching piece 200. The laser output head 100 includes a main body 110 and a fixing base 120 formed by extending outward from one end of the main body 110, and one end of the fixing base 120 departing from the main body 110 is provided with a first abutting surface 121. The transfer block 200 comprises a base 210 and a connecting portion 220, wherein one end of the base 210 is provided with a second abutting surface 211, the second abutting surface 211 and the first abutting surface 121 are both flat surfaces and abut against each other, and the base 210 and the fixing seat 120 are fixed in a detachable connection manner; the connecting portion 220 is disposed at an end of the base 210 away from the second abutting surface 211, and is configured to be connected to a processing head of a laser processing apparatus configured to the connecting portion.

Compare with the laser beam machining equipment on the existing market, the embodiment of the utility model provides a laser output head subassembly no longer adopts traditional female head, but adopts switching piece 200 to replace in addition and connects female head, and this switching piece 200 and fixing base 120 between through the plane butt and fixed, need not stretch into the one end of laser output head and connect female head be equipped with the annular groove of the conical surface in cup joint the location. Because planar processing degree of difficulty and cost all will be lower than the conical surface, then the embodiment of the utility model provides a laser output head subassembly can effectively reduce the whole processing degree of difficulty and the manufacturing cost of laser output head subassembly, can also make the structure that has the laser processing equipment of this laser output head subassembly more compact simultaneously.

The above embodiments are mainly based on the description of the connection relationship between the laser output head 100 and the transfer block 200; in addition, the present invention relates to an improvement of the structure of the laser output head 100 itself, and the following description will be made of the specific structure of the laser output head 100.

Referring to fig. 4 and fig. 5, which respectively show a schematic perspective view of a laser output head according to an embodiment of the present invention and a schematic sectional view of the laser output head in one direction, a main body 110 of the laser output head includes an outer shell 111, an inner shell 112, an end cap 113 and an optical fiber 114. Wherein the outer case 111 is provided with an accommodating space (not shown). The inner shell 112 is wholly accommodated in the accommodating space and is hermetically connected with the outer shell 111 to form a cooling cavity 1111 together, and the outer shell 111 is provided with a first communication port 1112 and a second communication port 1113 which are respectively communicated with the cooling cavity 1111; inside the inner housing 112, a through mounting space 1121 is provided. End cap 113 is accommodated in the accommodating space of outer housing 111 and fixed to inner housing 112, end cap 113 at least partially extends into mounting space 1121, and both ends of end cap 113 are located between both ends of cooling cavity 1111 along the axial direction of outer housing 111. The optical fiber 114 is at least partially accommodated in the mounting space 1121, has a first end fixed to the end cap 113, and has a second end passing through the mounting space 1121 in the axial direction of the inner housing 112 and protruding out of the inner housing 112.

Referring to fig. 5, the outer housing 111 is a tubular structure with a through interior, and the interior of the outer housing 111 is provided with an accommodating space for accommodating the inner housing 112, the end cap 113, the optical fiber 114, and the like. The outer wall of the outer case 111 is provided with a first communication port 1112 and a second communication port 1113, respectively, both ends of the first communication port 1112 are communicated with the accommodating space and the outside, respectively, and both ends of the second communication port 1113 are communicated with the accommodating space and the outside, respectively. In this embodiment, the inner wall of the outer casing 111 is cylindrical; it is understood that in other embodiments of the present invention, the inner wall of the outer casing 111 may be designed into other shapes as required to adjust the volume of the cooling cavity, so as to improve the cooling effect, such as a step shape or a trumpet shape.

With reference to the inner housing 112, as shown in fig. 5, the inner housing 112 is also a cylindrical structure, and is accommodated in the accommodating space and is coaxial with the outer housing 111. Two ends of the inner shell 112 are detachably connected with the inner wall of the outer shell 111 in a sealing manner through sealing rings, and enclose the cooling cavity 1111. The first communication port 1112 and the second communication port 1113 are specifically communicated with the cooling cavity 1111, and one of the first communication port 1112 and the second communication port 1113 is used for introducing cooling liquid so that the cooling liquid enters the cooling cavity 1111; the other of the first communication port 1112 and the second communication port 1113 is used for allowing the cooling liquid to flow out of the cooling cavity 1111, so that the cooling liquid flows in the cooling cavity 1111 to take away heat accumulated in the inner shell 112 and the end cap 113. Alternatively, inner housing 112 is made of a thermally conductive material, thereby improving the heat dissipation efficiency of inner housing 112 itself. Further optionally, the inner surface of the inner shell 112 is plated with a gold film to improve the reflectivity of the inner shell 112 to light, so that the return light entering the inner shell 112 is reflected multiple times inside the inner shell 112, thereby avoiding the disadvantage that the return light is locally concentrated on the inner shell 112 to cause an over-high local temperature; it can be understood that, in other embodiments of the present invention, the metal film made of other materials may be substituted for the gold film, as long as the metal film can effectively improve the reflectivity to light.

Referring to fig. 5, the end cap 113 is accommodated in the accommodating space and disposed at an end of the inner housing 112 close to the fixing base 120, and at least a portion of the end cap 113 extends into the mounting space 1121 and is attached to and fixed to an inner wall of the inner housing 112. The end cap 113 is entirely accommodated in the accommodating space, so that the defect that the end cap 113 is accidentally damaged when the laser output head is disassembled and assembled can be avoided. Both ends of the end cap 113 are located between both ends of the cooling cavity 1111 in the axial direction of the outer housing 111. A light-returning and heat-dissipating region is enclosed between the end cap 113 and the inner wall of the inner housing 112; the end cap 113, the end of the inner housing 112 near the end of the end cap 113 and the inner wall of the outer housing 111 together define a light passing and heat dissipating region 1131. On the one hand, the laser light output from the optical fiber 114 passes through the light-passing and heat-dissipating region 1131; on the other hand, when the laser is emitted to the material with high reflectivity at a specific angle, part of the laser will pass through the heat-passing and dissipating region 1131 along the original optical path and enter the heat-returning and dissipating region, so the heat accumulation of the heat-returning and dissipating region and the heat-passing and dissipating region 1131 is high.

The optical fiber 114 is a strip shape, and at least a portion of the optical fiber 114 is received in the mounting space 1121 of the inner housing 112, a first end of the optical fiber 114 is fixed to the end cap 113, and a second end of the optical fiber 114 passes through the mounting space 1121 and extends out of the outer housing 111. Optionally, the optical fiber 114 and the end cap 113 are fused. Alternatively, the outer diameter of the outer housing 111 is gradually increased or kept constant in a direction from the second end of the optical fiber 114 toward the first end thereof. Likewise, the outer diameter of inner housing 112 may alternatively be gradually larger or may remain constant from the second end of optical fiber 114 toward its first end.

In this embodiment, cooling cavity 1111 includes a first cooling cavity 1114 and a second cooling cavity 1115. Since the first cooling chamber 1114 is formed by the gap between the outer housing 111 and the inner housing 112, the coolant in the first cooling chamber 1114 can cool the inner housing 112 and the returned light heat dissipation area. The second cooling cavity 1115 is arranged in the outer shell 111 and is arranged around at least part of the periphery of the end cap 113, the second cooling cavity 1115 is communicated with the first cooling cavity 1114 to form the cooling cavity 1111, and both ends of the end cap 113 are located between both ends of the cooling cavity 1111 along the axial direction of the outer shell 111; second cooling cavity 1115 is capable of cooling end cap 113. The first communicating port 1112 and the second communicating port 1113 are both disposed at one end of the outer housing 111 corresponding to the first cooling chamber 1114 and are respectively communicated with the first cooling chamber 1114. It is understood that, in other embodiments of the present invention, the first communicating port and the second communicating port may be disposed at other positions, for example: in some embodiments, the first communication port and the second communication port are disposed at an end of the outer shell 111 corresponding to the second cooling cavity 1115, and are respectively communicated with the second cooling cavity 1115.

In addition, the second cooling cavity 1115 is at least partially disposed around the periphery of the heat dissipation region 1131, so that the second cooling cavity 1115 can dissipate heat through the heat dissipation region as a whole. Therefore, the light-transmitting heat dissipation area 1131 can be cooled in time, and the heat dissipation effect of the laser output head can be further improved.

Further, to ensure that any coolant entering cooling cavity 1111 can pass through second cooling cavity 1115 to enhance the cooling effect on end cap 113 and light passing and heat dissipating region 1131, the laser output head further includes a baffle assembly (not shown). Specifically, the baffle assembly is disposed in cooling cavity 1111 and includes a first baffle (not shown) and a second baffle (not shown). Wherein the first partition extends entirely in a direction parallel to the axis of the outer housing 111 and extends from the end of the first cooling chamber 1114 remote from the second cooling chamber 1115 to the second cooling chamber 1115; one end of the outer housing 111 is connected to the outer wall of the inner housing 112, and the other end extends toward the inner wall of the outer housing 111 in a direction parallel to the radial direction of the outer housing 111 to be attached to each other. The second partition extends along a direction parallel to the axis of the outer shell 111, extends from one end of the first cooling cavity 1114, which is far away from the second cooling cavity 1115, to the second cooling cavity 1115, and extends along a direction parallel to the radial direction of the outer shell 111, one end of the second partition is connected with the outer wall of the inner shell 112, and the other end of the second partition extends towards the inner wall of the outer shell 111 to be attached to the inner wall of the outer shell 111. The first partition plate and the second partition plate cooperate together to divide the cooling cavity 1111 into a first flow channel and a second flow channel, and the first flow channel and the second flow channel are communicated with each other at the second cooling cavity 1115. The first communicating port is communicated with the first flow channel, the second communicating port is communicated with the second flow channel, taking the first communicating port as a liquid inlet and the second communicating port as a liquid outlet as an example, the cooling liquid entering the cooling cavity 1111 through the first communicating port 1112 will sequentially pass through the first cooling cavity 1114 in the first flow channel, the second cooling cavity 1115 in the second flow channel and the first cooling cavity 1114 in the second flow channel under the guiding action of the first partition plate and the second partition plate, and then flow out of the cooling cavity 1111 through the second communicating port 1113. Therefore, the cooling liquid entering the cooling cavity 1111 can cool the end cap 113 and the light-passing and heat-dissipating region 1131, and the laser output head has a good cooling effect on the end cap 113 and the light-passing and heat-dissipating region 1131. The direction of the arrows in fig. 5 represents the direction of flow of the coolant.

It is understood that even though the partition plate assembly in the present embodiment includes the first partition plate and the second partition plate which are relatively independent, and the first partition plate and the second partition plate are both fixed to the outer wall of the inner shell 112; however, in other embodiments of the present invention, the baffle plate assembly may also be a unitary body; the baffle assembly may also be fixedly attached to the inner wall of the outer housing 111.

Further, to enhance the cooling efficiency of the cooling fluid to the inner housing 112 and the end cap 113, the laser output head further includes heat dissipating fins 1122. Specifically, the heat dissipating fins 1122 are integrally plate-shaped structures that are attached to the outer wall of the inner housing 112 and integrally extend in a direction parallel to the axis of the outer housing 111. The heat dissipation fins 1122 increase the heat exchange area between the inner housing 112 and the cooling liquid, so that the heat dissipation effect of the laser output head can be effectively improved. Optionally, the number of the heat dissipation fins 1122 is even, the even number of the heat dissipation fins 1122 is divided into two groups, and the two groups of the heat dissipation fins 1122 are respectively disposed on two sides of the partition plate assembly.

Further, to facilitate the installation and fixation of the optical fiber 114, the laser output head further includes a fiber fixation block 115. Fiber securing block 115 is disposed at an end of inner housing 112 distal from end cap 113 and is fixedly coupled to outer housing 111 and/or inner housing 112. The optical fiber fixing block 115 is provided with a through-hole penetrating in a direction parallel to the axis of the inner housing 112, through which the second end portion of the optical fiber 114 protrudes out of the optical fiber fixing block 115. The optical fiber fixing block 115 is used for sealing one end of the inner housing 112 and the outer housing 111 away from the end cap 113, and for fixing and limiting the optical fiber 114 to prevent the optical fiber 114 from freely swinging, so that the optical fiber 114 is kept in a linearly extending state.

Compare with the laser output head on the existing market, the embodiment of the utility model provides an inside cooling chamber 1111 of laser output head 100 has covered the length region of end cap 113 in the axis direction along shell body 111 is whole, is promptly the embodiment of the utility model provides a laser output head is after letting in the coolant liquid, can not only play the cooling effect to interior casing 112, can also play good cooling effect to end cap 113. Meanwhile, at least part of the cooling cavity 1111 is annularly arranged on the periphery of the light-through heat dissipation area 1131, and then the laser output head can dissipate heat of the light-through heat dissipation area 1131 after being introduced with cooling liquid, so that the overall heat dissipation effect of the laser output head is further improved.

Referring to fig. 6, which is a schematic cross-sectional view illustrating a laser output head 100' according to another embodiment of the present invention, the direction of the arrow in fig. 6 represents the flow direction of the cooling liquid. The laser output head 100 'includes an outer housing 111', an inner housing 112 ', an end cap 113' and an optical fiber 114 ', and referring to fig. 4 and 5, the main differences between the laser output head 100' and the laser output head 100 provided in the previous embodiment are:

the outer shell 111 and the inner shell 112 of the laser output head 100 in the first embodiment are independent structures, and are hermetically connected through a sealing member;

the outer housing 111 ' and the inner housing 112 ' of the laser output head 100 ' in the second embodiment are integrally formed, which can reduce the fitting process between the outer housing 111 ' and the inner housing 112 ', thereby improving the assembly efficiency.

Based on the same inventive concept, the utility model also provides a laser instrument, including laser generation subassembly and the laser instrument output head subassembly in the above-mentioned embodiment, the laser generation subassembly passes through optical fiber connection with the laser instrument output head subassembly.

Based on the same inventive concept, the utility model also provides a laser instrument, this laser instrument includes laser generation subassembly, controller and the laser instrument output head subassembly in the above-mentioned embodiment, and laser instrument output head subassembly passes through optical fiber connection with the laser generation subassembly, and this laser generation subassembly and above-mentioned sensor 124 all are connected with the controller. Because the laser output head assembly is included, namely the switching block is included, the laser provided by the embodiment can effectively reduce the whole processing difficulty and the manufacturing cost.

Based on the same inventive concept, the present invention further provides a laser processing apparatus, referring to fig. 7 in combination with fig. 1 to 6, the laser processing apparatus includes a laser processing head 300 and the laser in the above embodiment. The laser processing apparatus processing head 300 includes, but is not limited to, one of a laser cutting head, a laser cladding head, and a laser welding head, and is fixedly connected to the connection portion 220. The laser processing equipment that this embodiment provided is owing to omitted traditional female head of connecting, and the processing degree of difficulty and the manufacturing cost of whole laser processing equipment reduce. Due to the fact that the laser output head assembly is included, the overall processing difficulty and the manufacturing cost of the laser processing equipment provided by the embodiment can be effectively reduced.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a switching piece for connect laser instrument output head and laser processing equipment processing head, a serial communication port, base and connecting portion including interconnect, the one end of base is equipped with a butt face, the butt face be used for with the laser output butt of laser instrument output head, connecting portion are located the base deviates from the one end of butt face, connecting portion be used for with the supporting connection of laser processing equipment processing head.

2. The adapter block of claim 1, wherein the abutment surface is a flat surface, and a through hole is provided through the base.

3. The adapter block of claim 2 wherein the attachment portion extends around the periphery of the through bore and away from the base, and wherein the attachment portion has external or internal threads on its surface for snap-fit engagement with the laser machining apparatus head.

4. The adapter block of claim 1, wherein the abutment surface is provided with a positioning hole for mating with a matching positioning post on the laser output head;

5. The adapter block of claim 1, wherein the base and the laser output end of the laser output head are respectively provided with a through mounting hole, and a threaded fastener penetrates through the mounting holes of the base and the laser output end of the laser output head, so that the base and the laser output head are fixedly connected in a detachable manner.

6. A laser output head assembly comprising a laser output head and a transition block as claimed in any one of claims 1 to 3;

7. The laser output head assembly of claim 6 wherein the mounting base and the base are flat rectangular parallelepiped shaped, and the first abutment surface and the second abutment surface are both planar.

8. The laser output head assembly as claimed in claim 6, wherein one of the fixed base and the base is provided with a positioning hole, and the other of the fixed base and the base is provided with a positioning post matched with the positioning hole, the positioning post being used for matching with the positioning hole;

9. The laser output head assembly as in claim 6, wherein the fixed mount is secured to the base by a threaded fastener;

10. The laser output head assembly as in claim 6, further comprising a first sealing ring, wherein the second abutment surface defines a through-hole extending through the base;

the laser output head also comprises a second sealing ring;

11. The laser output head assembly of any one of claims 6 to 10, wherein the body comprises:

an outer housing provided with an accommodating space;

12. The laser output head assembly of claim 11, wherein the end cap, the end of the inner housing near the end of the end cap, and the inner wall of the outer housing together define a light-passing heat dissipation region, and the cooling cavity is at least partially disposed around the light-passing heat dissipation region.

13. The laser output head assembly as set forth in claim 11, wherein the outer diameter of the outer housing is gradually increased or kept constant from the second end toward the first end; and/or

14. The laser output head assembly of claim 11,

the inner shell and the outer shell are integrally formed; or,

15. A laser device is characterized in that a laser beam is emitted from a laser,

comprising a transition block according to any one of claims 1 to 5; or,

comprising a laser output head assembly as claimed in any one of claims 6 to 14.

16. A laser machining device comprising a laser machining device machining head and a laser as claimed in claim 15, the laser machining device machining head being fixedly connected to the connecting portion.