CN101077550A - Light beam mode automatic selecting device of laser machine - Google Patents
Light beam mode automatic selecting device of laser machine Download PDFInfo
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- CN101077550A CN101077550A CN 200610084798 CN200610084798A CN101077550A CN 101077550 A CN101077550 A CN 101077550A CN 200610084798 CN200610084798 CN 200610084798 CN 200610084798 A CN200610084798 A CN 200610084798A CN 101077550 A CN101077550 A CN 101077550A
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- permanent magnet
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Abstract
The present invention provides one kind of one unit for limiting the outer diameter of laser beam and selecting beam mode automatically in laser resonance device of laser processing machine. The laser resonance device produces laser beam through vibration inside the cavity and provides the laser beam to the laser gun through the output lens. The automatic beam mode selecting unit set in the direction perpendicular with the laser beam axis has one throttling piece guided with one linear guide piece, one cylinder outside the casing to drive the piston rod, one permanent magnet driven with the piston rod, and one second permanent magnet for selecting the opening of the throttling piece.
Description
Technical field
The diameter that the present invention relates to the automatic change laser beam in the laser machine is selected the beam mode automatic dialing unit of beam mode.
Background technology
Fig. 5 is expression from the relation of the laser beam diameter of laser resonator output and beam mode and to the key diagram of the influence of working (machining) efficiency.
The laser beam LB that takes place in the laser resonator whole by symbol 1 expression, the mirror 5 of being turned back is turned back, and invests the laser gun 10 that Laser Processing is used.In laser gun 10, set collector lens 20, the laser beam as the projection of the light beam of directional light wire is roughly carried out optically focused, on workpiece (machining object) W1, W2, workpiece W1, W2 are implemented Laser Processing from 30 focusings of laser mouth.
Shown in Fig. 5 (a), when the gauge of workpiece W1 is big, for example when the steel plate that adopts thickness of slab in the scope of 25mm～6mm, increase from the diameter dimension D1 of the laser beam LB of resonator 1 output.If increase the footpath size of laser beam LB, the beam mode of the energy of expression laser beam just forms so-called multi-mode MM.
When being this multi-mode MM, the focal point of optically focused on workpiece W1 increases.Utilize the big focal point of this diameter dimension, lot of energy is incident upon on the workpiece W1, can be at a high speed and process the workpiece W1 of slab in high quality.
In addition, shown in Fig. 5 (b),, for example when the steel plate that adopts thickness of slab in the scope of 6mm～0.2mm, reduce from the diameter dimension D2 of the laser beam LB of resonator 1 output at the gauge of workpiece W2 hour.If reduce the diameter dimension D2 of laser beam LB, the beam mode of the energy of expression laser beam just forms so-called monotype SM.
When this monotype SM, the focal point of optically focused on workpiece W2 reduces.Utilize the little focal point of this footpath size, with concentration of energy workpiece W2 a bit on, can be at a high speed and the workpiece W2 of processing sheet in high quality.
In addition, following patent documentation discloses the switching device shifter of output mode.
Patent documentation 1: the spy opens flat 8-19888 communique
Obtain this big laser beam diameter D1, can realize by the big throttle part A1 that is called opening of equipment internal diameter size in resonator 1.Equally, obtain this little laser beam diameter D2, can realize by the little opening A2 of equipment internal diameter size in resonator 1.
Summary of the invention
The objective of the invention is to, provide a kind of in laser machine,, automatically select the device of the diameter dimension of opening according to the thickness of slab of the workpiece that will process or material etc.
The beam mode automatic dialing unit of laser machine of the present invention, as basic mechanism, possess: throttle part, it is configured in the basket of laser resonance device of laser machine and has a plurality of different internal diameter size of the outside dimension that is used to regulate laser beam; The device of guiding throttle part; Permanent magnet, it is installed on the throttle part, has a side magnetic polarity; Be located at the drive unit in the basket outside of laser resonance device; Permanent magnet, it is installed on the drive unit, has the opposing party's relative with permanent magnet on the throttle part magnetic polarity.
In addition, the device of guiding throttle part is a linear guide spare, and drive unit is a piston cylinder.
In addition, the device of the throttle part of guiding turning arm shape is a swivel bearing, and drive unit is an impulse motor.
The beam mode automatic dialing unit of laser machine of the present invention, by having above mechanism, can under vacuum state, enclose in the basket of laser oscillation apparatus of laser gas and set throttle part, operate throttle part non-contactly from the outside of basket, safety and select the laser beam pattern reliably.Therefore, can automatically obtain the beam mode of suitable processing conditions.
Description of drawings
Fig. 1 is the key diagram of expression embodiments of the invention.
Fig. 2 is the front view of throttle part.
Fig. 3 is the key diagram of expression another embodiment of the present invention.
Fig. 4 is the front view of throttle part.
Fig. 5 is the key diagram of beam mode.
Among the figure: 10-Laser Processing laser gun, 20-collector lens, 30-laser mouth, the 100-laser oscillation apparatus, 110-basket, 120-speculum, the 130-output lens, 200-light beam automatic dialing unit, 212-guide rail, 214-linear guide spare, 220-throttle part (adjusting parts), 222,224-peristome (aperture), the 230-permanent magnet, 240-cylinder, 242-piston, the 244-piston rod, the 250-permanent magnet.
The specific embodiment
Fig. 1 is the key diagram of concise and to the point formation of the beam mode automatic dialing unit of expression laser machine of the present invention, and Fig. 2 is the front view of throttle part.
Represent whole laser oscillation apparatus with symbol 100, have basket 110, keep vacuum state in the basket, enclose laser gas.In basket 110, set optical system 120 such as reflective mirror, laser beam LB vibrates.
Laser beam LB exports to not shown light path side from the output lens 130 of oscillation device, is sent to laser gun 10 sides by the mirror 5 of turning back in the light path.
Input to the laser beam of laser gun 10,, be radiated on the workpiece W from laser mouth 30 by collector lens 20 optically focused.
Represent whole beam mode automatic dialing unit with symbol 200, have the basket 110 with respect to the laser oscillator that is made of speculum etc., the casing 210 to vertical direction is extended is provided with guide rail 212 in casing 210.
Support linear guiding piece 214 sliding freely with respect to this guide rail 212, tabular throttle part 220 is installed with respect to linear guide spare 214.
Also as shown in Figure 2, throttle part 220 has the 1st peristome 222 and the 2nd peristome 224.The 1st peristome 222 forms by the heavy caliber D1 corresponding with multimodal output mode, and the 2nd peristome 224 forms by the small-bore D2 corresponding with the output mode of monotype.
Across casing 210 ground and throttle part 220 cylinder 240 that be arranged in parallel.Piston 242 in the cylinder 240 is for example by gas-powered.
On the top of piston rod 244, the permanent magnet 250 of the magnetic polarity (N) with the opposing party is installed.
If permanent magnet 250 together moves with piston rod 244, the permanent magnet 230 in the casing 210 is followed mobile, and throttle part 220 also slides on guide rail 212 thereupon.
By this action, can insert the 1st peristome 222 and the 2nd peristome 224 of throttle part selectively in the vibration light path system of laser beam.Therefore, the bore of convergent pencil of rays LB at random can be switched to the bore that produces multimodal bore and produce monotype.
Therefore, by in the NC of laser machine program,, can automatically select optimal beam mode with the additional accordingly function of selecting beam mode automatically such as the thickness of slab of workpiece, material, processing conditions.
Therefore, can implement at a high speed and high-quality Laser Processing according to the processing conditions of the best.
Beam mode automatic dialing unit of the present invention can by being provided in the casing controller outside, can be operated throttle part non-contactly at the internal equipment throttle part of the casing of laser beam optical system.Therefore, the change smoothness of beam mode also can obtain stable beam mode in addition.
Fig. 3, Fig. 4 are the key diagrams of expression another embodiment of the present invention.
Beam mode automatic dialing unit 400 has the housing of installing with peristome 350 subtends of end plate 310 410.On housing 410, via bearing 442, rotating shaft 440 is installed in rotation freely.Turning arm 430 is installed in rotation freely on rotating shaft 440.
As shown in Figure 4, form a plurality of peristomes 432,434,436 on the turning arm 430, on peristome, form the different aperture of diameter dimension.
In the present embodiment, possess 3 peristomes, but also can set the number of peristome arbitrarily.
The permanent magnet 450 with magnetic polarity (S) of a side cylindraceous is installed in end at rotating shaft.Casing 420 is installed in the outside at permanent magnet 450, and the inside of casing is communicated with the space 350 of end plate 310.
On the output shaft 462 that is installed in the impulse motor 460 on the housing 412, the permanent magnet 470 of the magnetic polarity (N) with the opposing party is installed.This permanent magnet 470, across casing 420 non-contactly with permanent magnet 450 subtends.
The rotation of impulse motor 460 via permanent magnet 470, passes to the permanent magnet 450 of turning arm 430 sides, can select aperture arbitrarily.
The present invention as mentioned above, utilizes the driving mechanism that is equipped in the basket outside, and operation non-contactly is provided in the throttle part of the basket inside of laser resonator, and this basket inner sustain condition of high vacuum degree is also enclosed the gas that needs.
Therefore, can not influence the beam mode that laser machine is automatically selected on the interior protective atmosphere ground of laser resonator.
Claims (3)
1. the beam mode automatic dialing unit of a laser machine possesses:
Throttle part, it is configured in the basket of laser resonance device of laser machine, has a plurality of different internal diameter size of the outside dimension that is used to regulate laser beam;
The device of guiding throttle part;
Be installed in the permanent magnet on the throttle part, it has a side magnetic polarity;
Be located at the drive unit in the basket outside of laser resonance device;
Be installed in the permanent magnet on the drive unit, it has the opposing party's relative with permanent magnet on the throttle part magnetic polarity.
2. the beam mode automatic dialing unit of laser machine as claimed in claim 1, wherein, the device of guiding throttle part is a linear guide spare, drive unit is a piston cylinder.
3. the beam mode automatic dialing unit of laser machine as claimed in claim 1, wherein, the device of the throttle part of guiding turning arm shape is a swivel bearing, drive unit is an impulse motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610084798 CN101077550A (en) | 2006-05-22 | 2006-05-22 | Light beam mode automatic selecting device of laser machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610084798 CN101077550A (en) | 2006-05-22 | 2006-05-22 | Light beam mode automatic selecting device of laser machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101077550A true CN101077550A (en) | 2007-11-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610084798 Pending CN101077550A (en) | 2006-05-22 | 2006-05-22 | Light beam mode automatic selecting device of laser machine |
Country Status (1)
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| CN (1) | CN101077550A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706772A (en) * | 2012-05-18 | 2012-10-03 | 中国石油天然气股份有限公司 | Continuous sample transfer method and device for measuring density of volatile oil |
| CN104602859A (en) * | 2012-09-05 | 2015-05-06 | 三菱电机株式会社 | Laser processing device |
| CN107112714A (en) * | 2014-11-14 | 2017-08-29 | 极光先进雷射株式会社 | Arrowband laser aid and the method positioned to arrowband module |
| CN109562488A (en) * | 2016-07-04 | 2019-04-02 | 普雷茨特两合公司 | Device for introducing optical system in the course of the beam of laser Machining head and with the laser Machining head of the device |
-
2006
- 2006-05-22 CN CN 200610084798 patent/CN101077550A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706772A (en) * | 2012-05-18 | 2012-10-03 | 中国石油天然气股份有限公司 | Continuous sample transfer method and device for measuring density of volatile oil |
| CN104602859A (en) * | 2012-09-05 | 2015-05-06 | 三菱电机株式会社 | Laser processing device |
| CN104602859B (en) * | 2012-09-05 | 2016-05-18 | 三菱电机株式会社 | Laser processing device |
| CN107112714A (en) * | 2014-11-14 | 2017-08-29 | 极光先进雷射株式会社 | Arrowband laser aid and the method positioned to arrowband module |
| CN109562488A (en) * | 2016-07-04 | 2019-04-02 | 普雷茨特两合公司 | Device for introducing optical system in the course of the beam of laser Machining head and with the laser Machining head of the device |
| CN109562488B (en) * | 2016-07-04 | 2022-01-14 | 普雷茨特两合公司 | Laser machining head for machining materials by means of a laser beam |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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