CN203649651U - Optical system and laser machining device - Google Patents
Optical system and laser machining device Download PDFInfo
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- CN203649651U CN203649651U CN201320783138.4U CN201320783138U CN203649651U CN 203649651 U CN203649651 U CN 203649651U CN 201320783138 U CN201320783138 U CN 201320783138U CN 203649651 U CN203649651 U CN 203649651U
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- vrm
- eyeglass
- optical system
- lens
- pressure
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Abstract
The utility model relates to the field of optical reflection, in particular to an optical system and a laser machining device, wherein the optical system comprises two VRM lenses. The laser machining device comprises the optical system. The optical system comprises the first VRM lens, the second VRM lens and a pressure adjusting device connected between the first VRM lens and the second VRM lens. The first VRM lens is arranged at a beam expanding position. The second VRM lens is arranged in front of a focus lens. The curvature of the two VRM lenses is adjusted through water pressure of the pressure adjusting device, so that the diameter of a light spot which is emitted from the first VRM lens into the second VRM lens always keeps consistent. In the processes of laser precision machining and high-speed cutting, the laser machining device meets high-precision and quick machining requirements, so that quick punching in the laser cutting process is achieved, the optical system reacts more quickly, control is more accurate and controllability is higher.
Description
Technical field
The utility model relates to optical field, is specifically related to a kind ofly use the optical system of two VRM eyeglasses and comprise the laser processing device of this optical system.
Background technology
On industry cutting field, high power laser light cutting has very widely uses, and particularly relates to the metal processing industries such as panel beating.The lathe that the use of superpower laser need to match, at present common with the lathe of 3M*1.5M, Custom Prosthesis have 4M*2M even larger.For common high power CO2 laser, generally adopt flight light path, in the connection distance of considering between laser instrument and lathe, the distance of flight light path is generally 6-8M.
As shown in Figure 1, Fig. 1 is the beam-expanding collimation system that prior art laser instrument carries, and laser instrument is launched laser beam, through beam expanding lens and collimating mirror, by the speculum at laser beam incident focusing unit place, then reflex to focusing convex lens place, laser beam is processed processing.This device can limit hot spot within the specific limits in the laser beam gap of front middle rear end, but still has deficiency for high-accuracy rapid processing.
In order to adapt to high-accuracy rapid processing, the beam-expanding collimation system that some parts laser instrument carries can replace the speculum at focus control unit place with VRM eyeglass, makes at laser beam perforation and lathe in servicely, revises spot size and adjusts focal position.But for the lathe of rapid processing, particularly constantly switch these two kinds of laser processing states of cut state and perforation state, the optical system of a VRM eyeglass of this employing realizes difficulty larger in practical operation, eyeglass response does not catch up with process velocity.
Utility model content
The technical problems to be solved in the utility model is, for the above-mentioned defect of prior art, provides a kind of optical system that uses two VRM eyeglasses, and the optical system that overcomes laser can not meet the requirement of high-accuracy rapid processing.
Another technical problem to be solved in the utility model is: a kind of laser processing device is provided, overcomes in prior art and punch fast in the time of laser cutting, the response of optical system does not catch up with the problem of process velocity.
The utility model solves the technical scheme that its technical problem adopts: a kind of optical system is provided, comprise collimating mirror and focus lamp, wherein: also comprise a VRM eyeglass and the 2nd VRM eyeglass, and be connected in the pressure-regulating device of a VRM eyeglass and the 2nd VRM eyeglass.
Wherein, preferred version is: a described VRM eyeglass is arranged at before collimating mirror.
Wherein, preferred version is: the 2nd described VRM eyeglass is arranged at before focus lamp.
Wherein, preferred version is: described pressure-regulating device comprises water-pressure regulating device or barometric control unit.
Wherein, preferred version is: described water-pressure regulating device is water pump.
Wherein, preferred version is: described barometric control unit is cylinder.
Wherein, preferred version is: also comprise a control module, this control module is connected with pressure-regulating device.
Wherein, preferred version is: also comprise the sensing unit changing for responding to a VRM eyeglass and the 2nd VRM eyeglass curvature, this sensing unit is connected with control module.
The utility model also provides a kind of laser processing device, comprise lathe, and optical system for cutting and punching, this optical system comprises collimating mirror, wherein: described optical system comprises a VRM eyeglass and the 2nd VRM eyeglass, and be connected in the pressure-regulating device of a VRM eyeglass and the 2nd VRM eyeglass.
Wherein, preferred version is: a described VRM eyeglass is arranged at before collimating mirror, and the 2nd described VRM eyeglass is arranged on the Z axis of lathe.
The beneficial effects of the utility model are, compared with prior art, laser processing device described in the utility model comprises optical system, in this optical system, comprise a VRM eyeglass and the 2nd VRM eyeglass, and regulate the curvature of two VRM eyeglasses by the hydraulic pressure of pressure-regulating device, make the spot diameter that a VRM eyeglass incides the 2nd VRM eyeglass remain consistent, in the operation of laser instrument Precision Machining and high-speed cutting, meet high-accuracy process requirements fast, laser is punched fast in the time of cutting, optical system reaction is rapider, control more accurate, handling stronger.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the beam-expanding collimation system structural representation that prior art laser instrument carries;
Fig. 2 is optical system structure schematic diagram of the present utility model;
Fig. 3 is the two VRM eyeglass control schematic diagrames of the utility model.
The specific embodiment
Now by reference to the accompanying drawings, preferred embodiment of the present utility model is elaborated.
The utility model provides a kind of optical system that uses two VRM eyeglasses, and as shown in Figure 2, it is optical system structure schematic diagram of the present utility model.Described optical system comprises laser instrument 1, collimating mirror 4, focus lamp 5, pressure-regulating device, described optical system also comprises a VRM eyeglass 2 and the 2nd VRM eyeglass 3, the one VRM eyeglass 2 is arranged on the position that expands of beam-expanding collimation unit, the one VRM eyeglass 2 is arranged at before collimating mirror 4, this focusing unit comprises focus lamp 5, the 2nd VRM eyeglass 3 is arranged at before focus lamp 5, pressure-regulating device is connected with the 2nd VRM eyeglass 3 with a VRM eyeglass 2, regulate by a VRM eyeglass 2 and the 2nd VRM eyeglass 3 pressure by this pressure-regulating device, thereby regulate the curvature of two VRM eyeglasses, laser instrument 1 is launched light beam to a VRM eyeglass 2 of beam-expanding collimation unit, light beam 2 is reflexed to collimating mirror 4 by the one VRM eyeglass 2, the light beam of revising by a VRM eyeglass 2 incides the 2nd VRM eyeglass 3, the spot diameter of light beam on the 2nd VRM eyeglass 3 remains that unanimously light beam 2 focuses on by focus lamp 5 the most at last.
Pressure-regulating device described in the utility model embodiment can be water-pressure regulating device or barometric control unit, and wherein water-pressure regulating device is water pump, and barometric control unit is cylinder, and the present embodiment is take water-pressure regulating device as example.
As shown in Figure 3, it is the two VRM eyeglass control schematic diagrames of the utility model.Pressure-regulating device comprises the first pressure-regulating device 301 and the second pressure-regulating device 302, and this first pressure-regulating device 301 is connected with water source 305 with the second pressure-regulating device 302; Sensing unit comprises the first sensing unit 303 and the second sensing unit 304, control module 6 is connected in the first pressure-regulating device 301 and the second pressure-regulating device 302, and be connected with the second sensing unit 304 with the first sensing unit 303, the first described sensing unit 303 is connected with a VRM eyeglass 2, and the second sensing unit is connected with the 2nd VRM eyeglass 3.
The signal message that in the present embodiment, control module 6 transmits according to the first sensing unit 303, adjust the pressure of the first pressure-regulating device 301, current flow in the first pressure-regulating device 301, water source 305 and a VRM eyeglass 2, the one VRM eyeglass 2 is adjusted its eyeglass radius of curvature according to pressure size, and the first sensing unit 303 is according to feeding back to control module 6 processed in the measured pressure signal information of a VRM eyeglass 2; Wherein, the control method of the 2nd VRM eyeglass 3 and above-mentioned basically identical, adjusts by control module 6, the second pressure-regulating device 302, the second sensing units 304.
It is mainly the work requirements according to optical system that the VRM eyeglass of the present embodiment regulates, need a duty of VRM eyeglass, send this demand to control module 6 processed, the pressure that control module 6 processed needs respectively according to the duty of a VRM eyeglass 2 and the 2nd VRM eyeglass 3, regulates and maintains a VRM eyeglass 2 and the 2nd VRM eyeglass 3 pressure.
The utility model implements to provide a kind of laser processing device, comprise lathe, be arranged at the cutting and boring device on lathe, and optical system for cutting and punching, described cutting and boring device comprises cutting head, and optical system comprises collimating mirror, focus lamp, a VRM eyeglass 2 and the 2nd VRM eyeglass 3, and is connected in the pressure-regulating device of a VRM eyeglass 2 and the 2nd VRM eyeglass 3, the one VRM eyeglass 2 is arranged at before collimating mirror, for the effect expanding; The 2nd described VRM eyeglass 3 is arranged on the Z axis of lathe.Regulate the preferred embodiment of a VRM eyeglass 2 to be: the flight light path between collimating mirror 4 and the 2nd VRM eyeglass 3 can change at the diverse location of lathe breadth along with cutting head, because beam diameter is along with the difference of propagation distance, the diffraction of its laser will change thereupon, regulates according to the flight light path distance between collimating mirror 4 and the 2nd VRM eyeglass 3; Control module 6, by the now radius of curvature of VRM eyeglass 2 required adjustment of the flight light path Distance Judgment between collimating mirror 4 and the 2nd VRM eyeglass 3, then regulates hydraulic pressure to keep the now curvature of a VRM eyeglass 2; The effect of the one VRM eyeglass 2 is diameters of revising because of the light beam 2 changing along with the change of flight light path distance, makes to be incident on the spot diameter of the 2nd VRM eyeglass 3, does not change all the time always.
The preferred embodiment of laser processing device adjusting the 2nd VRM eyeglass 3 of the utility model embodiment is: because cutting is different with the focusing of perforation, the job information that needs is cut to still perforation sends control module 6 processed to; Control module 6 processed, according to the now radius of curvature of the 2nd VRM eyeglass 3 required adjustment of job information judgement, then regulates hydraulic pressure to keep the now curvature of the 2nd VRM eyeglass 3.
In optical system of the present utility model, Each performs its own functions for a VRM eyeglass 2 and the 2nd VRM eyeglass 3: a VRM eyeglass 2 regulates the spot diameter of flight light path and the 2nd VRM eyeglass 3 to regulate the focal position of controlling after focusing on.Duty does not clash with overlapping each other, so relatively without VRM lens optical system or single VRM lens optical system, its effect is especially remarkable.
VRM eyeglass described in utility model embodiment is adjustable curvature speculum, is the characteristic that permission user dynamically changes light beam at any time, specifically by the radius of curvature of pressure-regulating device control VRM eyeglass, to adjust the divergence characterization of laser beam.VRM eyeglass can be adjusted the depth of focus in the time of light beam penetrable material, thereby cutting speed is optimized.
In this preferred embodiment, this optical system is not only applicable to CO2 laser aid, is equally applicable to other laser optical systems, as Nd:YAFj laser instrument and N2 molecular laser.This optical system is suitable for laser cutting, welds and melts the optical system of covering processing.
As described above, be only the utility model most preferred embodiment, and not for limiting scope of the present utility model, all equivalences of doing according to the utility model claim change or modify, and are all the utility model and contain.
Claims (10)
1. an optical system, comprises collimating mirror and focus lamp, it is characterized in that: also comprise a VRM eyeglass and the 2nd VRM eyeglass, and be connected in the pressure-regulating device of a VRM eyeglass and the 2nd VRM eyeglass.
2. optical system according to claim 1, is characterized in that: a described VRM eyeglass is arranged at before collimating mirror.
3. optical system according to claim 1, is characterized in that: the 2nd described VRM eyeglass is arranged at before focus lamp.
4. optical system according to claim 1, is characterized in that: described pressure-regulating device comprises water-pressure regulating device or barometric control unit.
5. optical system according to claim 4, is characterized in that: described water-pressure regulating device is water pump.
6. optical system according to claim 4, is characterized in that: described barometric control unit is cylinder.
7. optical system according to claim 1, is characterized in that: also comprise a control module, this control module is connected with pressure-regulating device.
8. optical system according to claim 7, is characterized in that: also comprise the sensing unit changing for responding to a VRM eyeglass and the 2nd VRM eyeglass curvature, this sensing unit is connected with control module.
9. a laser processing device, comprise lathe, and optical system for cutting and punching, this optical system comprises collimating mirror, it is characterized in that: described optical system comprises a VRM eyeglass and the 2nd VRM eyeglass, and be connected in the pressure-regulating device of a VRM eyeglass and the 2nd VRM eyeglass.
10. laser processing device according to claim 9, is characterized in that: a described VRM eyeglass is arranged at before collimating mirror, and the 2nd described VRM eyeglass is arranged on the Z axis of lathe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320783138.4U CN203649651U (en) | 2013-12-02 | 2013-12-02 | Optical system and laser machining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320783138.4U CN203649651U (en) | 2013-12-02 | 2013-12-02 | Optical system and laser machining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203649651U true CN203649651U (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320783138.4U Expired - Fee Related CN203649651U (en) | 2013-12-02 | 2013-12-02 | Optical system and laser machining device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203649651U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735886A (en) * | 2017-02-16 | 2017-05-31 | 上海嘉强自动化技术有限公司 | One kind is based on single galvanometer and self adaptation mirror 3D scanning optics |
-
2013
- 2013-12-02 CN CN201320783138.4U patent/CN203649651U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735886A (en) * | 2017-02-16 | 2017-05-31 | 上海嘉强自动化技术有限公司 | One kind is based on single galvanometer and self adaptation mirror 3D scanning optics |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20201202 |
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| CF01 | Termination of patent right due to non-payment of annual fee |