CN217122080U

CN217122080U - Micro zooming reflection device

Info

Publication number: CN217122080U
Application number: CN202122913354.3U
Authority: CN
Inventors: 刘友先
Original assignee: Nantong Guangqing Technology Co ltd
Current assignee: Nantong Guangqing Technology Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-08-05
Anticipated expiration: 2031-11-25

Abstract

The utility model discloses a reflection arrangement zooms in fine motion, include: the device comprises a mounting base, a zooming specular reflection module, a laser emitting device, an alignment protective lens group and a distance measuring sensor, wherein the zooming specular reflection module is arranged on the mounting base, the laser emitting device is arranged at one end, away from the zooming specular reflection module, of the alignment protective lens group, the alignment protective lens group is arranged on the mounting base and matched with the zooming specular reflection module, and the distance measuring sensor is arranged below the zooming specular reflection module. The utility model discloses well zooming specular reflection module can reflect, focus and finely tune the camber of speculum face to the high-power laser that laser emission device launches to the focus position of dynamic change reflection laser, when the thickness fluctuation by the processing work piece is great, with the range finding sensor cooperation that processing was equipped, can effectively guarantee that the focus facula accuracy shines workpiece surface, improves the accurate nature of processing of work piece, thereby the quality of effectual improvement work piece processing.

Description

Micro-motion zoom reflection device

Technical Field

The utility model belongs to the technical field of laser beam machining, in particular to fine motion variable-focus reflection device.

Background

In the laser processing process, the position of a laser focal spot relative to a workpiece has great influence on the processing quality. The laser focal spot position projected by the laser processing equipment can always keep high consistency, but in the actual processing process, the thickness of the processed workpiece can also change due to different types of the processed workpiece, and the laser focal spot position change relative to the workpiece is caused due to the fluctuation of the thickness of the processed workpiece in the laser processing process, so that the processing quality is unqualified.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome not enough above, the utility model aims at providing a reflection device zooms in fine motion, its simple structure, reasonable in design, easy production can effectively guarantee that the focus facula accuracy shines workpiece surface, improves the accurate nature of processing of work piece to the quality of effectual improvement work piece processing.

The technical scheme is as follows: in order to achieve the above object, the present invention provides a micro-motion zoom reflection apparatus, comprising: the device comprises a mounting base, a zooming specular reflection module, a laser emitting device, an alignment protective lens group and a distance measuring sensor, wherein the zooming specular reflection module is arranged on the mounting base, the laser emitting device is arranged at one end, away from the zooming specular reflection module, of the alignment protective lens group, the alignment protective lens group is arranged on the mounting base and matched with the zooming specular reflection module, and the distance measuring sensor is arranged below the zooming specular reflection module. A fine motion reflect meter that zooms, a structure is simple, and reasonable design, easy to produce, the high-power laser that the specular reflection module that zooms can launch laser emission device reflects, the focus is and finely tune the camber of speculum face, thereby the focus position of dynamic change reflection laser, when the thickness fluctuation by the processing work piece is great, with the range finding sensor cooperation of processing equipment, can effectively guarantee that the focus facula accuracy shines workpiece surface, improve the accurate nature of processing of work piece, thereby the effectual quality of improving work piece processing, fine solution causes processingquality's problem because of processing work piece thickness variation.

The zoom mirror reflection module comprises a sealing shell, a reflection mirror and a radiator, wherein the sealing shell is arranged on one side of the mounting base, the emission mirror is arranged on the sealing shell, the emission mirror and the reflection mirror form a sealing chamber, and the radiator is arranged on the mounting base and is arranged at the relative position of the sealing shell. The reflecting mirror surface is used for reflecting and focusing high-power laser in the laser emitting device.

Furthermore, high-pressure cooling liquid is arranged in the sealed cavity, and the sealed cavity is connected with the radiator through a liquid supply pipeline. The high-pressure cooling liquid can timely take away laser energy absorbed by the reflecting mirror surface, and avoid overheating and burning loss.

In addition, the zooming mirror reflection module also comprises a flow pump for circulating high-pressure cooling liquid, and the flow pump is arranged on a liquid supply pipeline between the sealed chamber and the radiator. The setting of flow pump can adjust the back pressure that the speculum face received through the pressure of adjusting the high-pressure coolant liquid in the sealed cavity to the camber of control speculum face that can be accurate, thereby the focus position of dynamic change reflection laser improves the accuracy nature of its processing.

Furthermore, an inclined plane is arranged on the sealing shell, an opening is formed in the inclined plane, and the reflecting mirror surface is arranged at the opening of the inclined plane.

Preferably, the reflecting mirror surface is a copper reflecting mirror surface.

Further preferably, the thickness of the mirror surface is 2.5 mm. The reflectivity to laser light is over 99.8%.

Furthermore, a radiator, a flow pump, a laser emitting device and a distance measuring sensor in the zoom mirror reflection module are all connected with the control device.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has:

1. a fine motion reflect meter that zooms, a structure is simple, and reasonable design, easy to produce, the high-power laser that the specular reflection module that zooms can launch laser emission device reflects, the focus is and finely tune the camber of speculum face, thereby the focus position of dynamic change reflection laser, when the thickness fluctuation by the processing work piece is great, with the range finding sensor cooperation of processing equipment, can effectively guarantee that the focus facula accuracy shines workpiece surface, improve the accurate nature of processing of work piece, thereby the effectual quality of improving work piece processing, fine solution causes processingquality's problem because of processing work piece thickness variation.

2. The utility model discloses in the flow pump is located on the liquid supply pipeline between sealed cavity and the radiator. The setting of flow pump can adjust the back pressure that the speculum face received through the pressure of adjusting the high-pressure coolant liquid in the sealed cavity to the camber of control speculum face that can be accurate, thereby the focus position of dynamic change reflection laser improves the accuracy nature of its processing.

3. The utility model discloses in be equipped with high-pressure coolant liquid in the sealed cavity, the sealed cavity passes through the liquid supply pipe and is connected with the radiator. The high-pressure cooling liquid can timely take away laser energy absorbed by the reflecting mirror surface, and avoid overheating and burning loss.

Drawings

FIG. 1 is a schematic structural view of a micro-motion zoom reflector according to the present invention;

fig. 2 is a schematic structural view of another viewing angle in the present invention;

FIG. 3 is a functional schematic view of the micro-motion zoom reflection apparatus of the present invention;

fig. 4 is a schematic view of the operation of the micro-motion zoom reflection device of the present invention.

Detailed Description

The invention will be further elucidated with reference to the drawings and the specific embodiments.

Examples

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like 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 drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

A micro-zoom reflective device as shown in the figure, comprising: mounting base 1, zoom specular reflection module 2, laser emitter 3, collimation protection mirror group 4 and range finding sensor 5, wherein, zoom specular reflection module 2 includes sealed casing 21, reflection mirror 22 and radiator 23, sealed casing 21 locates one side of mounting base 1, emission mirror 22 locates on the sealed casing 21, and both form sealed cavity, radiator 23 locates on the mounting base 1 to locate sealed casing 21's relative position, laser emitter 3 locates collimation protection mirror group 4 and keeps away from the one end of zooming specular reflection module 2, collimation protection mirror group 4 locates on the mounting base 1 to cooperate with zoom specular reflection module 2, range finding sensor 5 locates the below of zooming specular reflection module 2.

In this embodiment, the sealed chamber is filled with high-pressure cooling liquid, and the sealed chamber is connected with the radiator 23 through a liquid supply pipeline.

The variable focus mirror module 2 in this embodiment further comprises a flow pump 24 for high pressure coolant circulation, the flow pump 24 being arranged in the liquid supply conduit between the sealed chamber and the heat sink 23.

In this embodiment, the sealing housing 21 is provided with an inclined plane 211, the inclined plane 211 is provided with an opening, and the reflector 22 is disposed at the opening of the inclined plane 211.

In this embodiment, the reflecting mirror 22 is a copper reflecting mirror.

The thickness of the mirror face 22 in this embodiment is 2.5 mm.

The heat sink 23 and the flow pump 24, the laser emitting device 3, and the distance measuring sensor 5 in the zoom mirror module 2 in this embodiment are all connected to a control device.

The working principle of the embodiment is as follows: as shown in fig. 3 and 4, the collimated laser beam is irradiated onto the copper mirror module of the variable focal length mirror module 2 and focused to an O point on the optical axis. When the distance measuring sensor 5 detects that the distance of the workpiece is lengthened, the controller sends out an adjusting signal, and then the flow pump 24 changes the pressure in the cooling loop and the sealed cavity, so that the curvature of the reflecting mirror surface is controlled, the position of the laser focal spot is moved forwards to an O' point, and the laser focal spot is guaranteed to accurately fall on the surface of the workpiece.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. A micro-motion zoom reflecting device is characterized in that: the method comprises the following steps: mounting base (1), zoom specular reflection module (2), laser emitter (3), collimation protection mirror group (4) and range finding sensor (5), the installation base (1) is located in zoom specular reflection module (2), the one end of zooming specular reflection module (2) is kept away from in collimation protection mirror group (4) is located in laser emitter (3), the installation base (1) is located in collimation protection mirror group (4) to cooperate with zoom specular reflection module (2), the below of zooming specular reflection module (2) is located in range finding sensor (5).

2. The micro-zoom reflecting device according to claim 1, wherein: zoom specular reflection module (2) including sealed casing (21), reflection mirror face (22) and radiator (23), one side of mounting base (1) is located in sealed casing (21), on sealed casing (21) was located in reflection mirror face (22), both formed sealed cavity, on mounting base (1) was located in radiator (23) to locate sealed casing (21) relative position.

3. The micro-zoom reflecting device according to claim 2, wherein: the sealed cavity is internally provided with high-pressure cooling liquid and is connected with a radiator (23) through a liquid supply pipeline.

4. The micro-zoom reflecting device according to claim 1, wherein: the variable-focus mirror reflection module (2) further comprises a flow pump (24) for circulating high-pressure cooling liquid, and the flow pump (24) is arranged on a liquid supply pipeline between the sealed cavity and the radiator (23).

5. The micro-zoom reflecting device according to claim 2, wherein: the sealed shell (21) is provided with an inclined plane (211), the inclined plane (211) is provided with an opening, and the reflector surface (22) is arranged at the opening of the inclined plane (211).

6. The micro-zoom reflecting device according to claim 2, wherein: the reflecting mirror surface (22) is a copper reflecting mirror surface.

7. The micro-zoom reflecting device according to claim 2, wherein: the thickness of the reflector surface (22) is 2.5 mm.

8. The micro-zoom reflecting device according to claim 2, wherein: and a radiator (23) and a flow pump (24) in the zoom mirror reflection module (2), a laser emitting device (3) and a distance measuring sensor (5) are all connected with a control device.