JPH01122690A - Torch for laser beam machine - Google Patents
Torch for laser beam machineInfo
- Publication number
- JPH01122690A JPH01122690A JP62278791A JP27879187A JPH01122690A JP H01122690 A JPH01122690 A JP H01122690A JP 62278791 A JP62278791 A JP 62278791A JP 27879187 A JP27879187 A JP 27879187A JP H01122690 A JPH01122690 A JP H01122690A
- Authority
- JP
- Japan
- Prior art keywords
- auxiliary gas
- nozzle
- processing
- torch
- notch groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011324 bead Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 abstract description 4
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Laser Beam Processing (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はレーザ加工機におけるレーザ加工用トーチの改
良に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement of a laser processing torch in a laser processing machine.
第５図は例えば従来のレーザ加工機の一例を示す概略図
である。FIG. 5 is a schematic diagram showing an example of a conventional laser processing machine, for example.
図におイテ（１）はＣＯ２レーザ発振器、（２１ｌｅｔ
ＣＯ。In the figure, item (1) is a CO2 laser oscillator, (21let
C.O.
レーザ発振器（１）から出力されるレーザ光、（３）は
レーザ光（２）の伝送路（図示せず）内に設けられた反
射鏡、（４）は加工ヘッド、（５）は加工ヘッド（４）
内に設置された集光レンズ、（６）は加工ヘッド（４）
内に補助ガスを供給する供給口、（７）は加工ヘッド（
４）の下部に取付けられノズル（８）を設けたノズル本
体、（９）はノズル（８）下面の開口部、ａＯ）は被加
工物である。Laser light output from the laser oscillator (1), (3) a reflecting mirror installed in the transmission path (not shown) of the laser light (2), (4) a processing head, and (5) a processing head. (4)
The condensing lens installed inside, (6) is the processing head (4)
The supply port (7) is for supplying auxiliary gas into the processing head (
4) is a nozzle body provided with a nozzle (8), (9) is an opening on the lower surface of the nozzle (8), and aO) is a workpiece.
上記のように構成されたレーザ加工機の動作について説
明する。The operation of the laser processing machine configured as described above will be explained.
ＣＯ，レーザ発振器（１）から出力されたレーザ光（２
）は、伝送路（図示せず）内に設けられた反射鏡（３）
はよって反射し、加工ヘッド（４）に達する。このレー
ザ光（２）は、加工ヘッド（４）内に設置された集光レ
ンズ（５）により集光され、加工ヘッド（４）の下部に
設けられたノズル（８）を通して被加工物α０）を加工
する。また補助ガスは、供給口（６）より加工・＼ラド
（４）内に供給され、ノズル（８）の開口部（９）を通
して被加工物側の加工部分に噴出させ、この加工部分を
外気よりシールドする。なおノズル（８）は、レーザ光
（２）の軸心に軸対称に逆円錐形状であり、ノズル（８
）の開口部（９）は上記軸心と同心円となっているので
、補助ガスは、レーザ光（２）が照射した加工面に集中
することになりシールド効果を高めるよう形成されてい
る。CO, the laser beam (2) output from the laser oscillator (1)
) is a reflecting mirror (3) installed in the transmission path (not shown).
It is reflected and reaches the processing head (4). This laser beam (2) is focused by a condensing lens (5) installed in the processing head (4), and passes through a nozzle (8) provided at the bottom of the processing head (4) to the workpiece α0). Process. In addition, the auxiliary gas is supplied into the machining/rad (4) from the supply port (6), and is ejected through the opening (9) of the nozzle (8) to the machining part on the workpiece side. Shield more. Note that the nozzle (8) has an inverted conical shape axially symmetrical to the axis of the laser beam (2).
) is formed concentrically with the axis, so that the auxiliary gas is concentrated on the processed surface irradiated with the laser beam (2), thereby enhancing the shielding effect.
上記のように従来・のレーザ加工機用トーチでは、レー
ザ光が照射された加工面をノズルから流出する補助ガス
により外気とシールドしながら加工しているが、加工位
置の移動により、上記加工直後の加工面はシールドされ
ず、また二つの加工面は高温となっているので、外気の
影響で酸化が生ずるといった問題があった。As mentioned above, with conventional torches for laser processing machines, the processing surface irradiated with laser light is processed while being shielded from the outside air by the auxiliary gas flowing out from the nozzle. Since the two machined surfaces are not shielded and the two machined surfaces are at high temperatures, there is a problem in that oxidation occurs due to the influence of outside air.
本発明は、かかる問題点を解決するためになされたもの
で、補助ガスをレーザ光の加工面に噴出させ、この面を
シールドするとともに、この補助ガスを被加工物の加工
方向と逆方向に流出して、加工直後の加工面もシールド
できるレーザ加工機用トーチを得ることを目的とする。The present invention was made in order to solve this problem, and injects an auxiliary gas onto the surface to be processed by the laser beam, shields this surface, and directs the auxiliary gas in the opposite direction to the processing direction of the workpiece. The purpose of the present invention is to obtain a torch for a laser processing machine that can leak out and shield the machined surface immediately after processing.
本発明に係るレーザ加工機用ｌ−−チはノズルの開口部
に連続して設けられ、被加工物の加工方向と逆方向に補
助ガスを流出する切欠溝を備えるようにしたものである
。The l-chi for a laser processing machine according to the present invention is provided with a cutout groove that is provided continuously to the opening of the nozzle and allows the auxiliary gas to flow out in a direction opposite to the processing direction of the workpiece.
本発明においては、ノズルの開口部に連続して設けられ
た切欠溝に補助ガスを流出させ、加工中の加工面のシー
ルドに加えて加工直後の加工面もシールドさせることに
より被加工物の酸化を防止する。In the present invention, the auxiliary gas flows out into the notch groove continuously provided at the opening of the nozzle, and in addition to shielding the machined surface during processing, it also shields the machined surface immediately after processing, thereby preventing oxidation of the workpiece. prevent.
以下、第１図および第２図により、本発明の一実施例に
ついて説明する。第１図は本発明のレーザ加工機用トー
チの断面図、第２図は第１の■−■断面図である。第１
図において図中符号は第５図と同一符号は同一のもので
ある。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a sectional view of a torch for a laser processing machine according to the present invention, and FIG. 2 is a first sectional view taken along the line 1--2. 1st
In the figure, the same reference numerals as those in FIG. 5 are the same.
図において、（１１）は本発明によるノズル本体、（１
２）はノズル（８）の開口部（９）に連続して加工方向
と逆方向に設けた切欠溝である。In the figure, (11) is a nozzle body according to the present invention, (1
2) is a notch groove provided continuously in the opening (9) of the nozzle (8) in a direction opposite to the processing direction.
以下、上記のように構成されたレーザ加工機用トーチの
動作を説明する。Hereinafter, the operation of the torch for a laser processing machine configured as described above will be explained.
加工ヘッド（４）に入射したレーザ光（２）は、加工ヘ
ッド（４）内に設置された集光レンズ（５）により集光
され被加工物ＱＯ）の加工面を照射する。一方補助ガス
は、供給口（６）から加工・＼ラド（４）内を流通し、
ノズル（８）の開口部（９）より噴出されるとともに、
開口部（９）に連続して設けた切欠溝（１２）によって
、補助ガスはレーザ光（２）の加工面に噴出したのち、
切欠溝（１２）に沿ってその下部の被加工物００）との
間を流出する。即ち切欠溝（１２）は矢印で示した加工
方向と逆方向に開口部（９）に連続して設けられている
ので、補助ガスは、被加工物（１０）の加工直後の表面
を外気からシールドするように流出することになる。The laser beam (2) incident on the processing head (4) is focused by a condensing lens (5) installed in the processing head (4) and irradiates the processing surface of the workpiece QO). On the other hand, the auxiliary gas flows through the processing/rad (4) from the supply port (6),
It is ejected from the opening (9) of the nozzle (8), and
After the auxiliary gas is ejected onto the surface to be processed by the laser beam (2) through the notched groove (12) continuously provided in the opening (9),
It flows out along the notched groove (12) between it and the workpiece 00) below it. That is, since the notch groove (12) is provided continuously in the opening (9) in the direction opposite to the processing direction indicated by the arrow, the auxiliary gas can protect the surface of the workpiece (10) immediately after processing from the outside air. It will flow out like a shield.
また、第２図に示すごとく、切欠溝（１２）の幅（Ａ）
は被加工物（１０１のビード幅より大きく設けることに
より、シールド効果を高めることができる。In addition, as shown in Fig. 2, the width (A) of the notch groove (12)
By making the bead width larger than the bead width of the workpiece (101), the shielding effect can be enhanced.
なお、補助ガスには通常へリュウムガスまたはアルゴン
ガス等が使われる。Note that helium gas, argon gas, or the like is normally used as the auxiliary gas.
なお、上記実施例ではノズル本体（１１）に設けた切欠
溝（１２）の断面を半円形のものを示したが、第３図に
示す四角形のものでもよい。In the above embodiment, the cutout groove (12) provided in the nozzle body (11) has a semicircular cross section, but it may have a rectangular cross section as shown in FIG. 3.
また、上記実施例では加工ヘッド（４）の下面にノズル
本体（１１）を装着したものを示したが、第４図に示す
ようにノズル本体（１１）と加工ヘッド（４）とを１体
形成させたものでも同様の効果を奏する。Furthermore, in the above embodiment, the nozzle body (11) was attached to the lower surface of the processing head (4), but as shown in FIG. A similar effect can be obtained even if the material is formed.
以上のように本発明によれば、ノズルの開口部に連続し
て設けられ、被加工物の加工方向と逆方向に補助ガスを
流出するように切欠溝を構成したので、補助ガスによっ
て加工中のシールドとともに、加工直後の加工面をシー
ルドすることも可能となり、外気による加工面の酸化を
防止し、加工精度の高いレーザ加工が得られるという効
果がある。As described above, according to the present invention, the notch groove is provided continuously at the opening of the nozzle and configured to allow the auxiliary gas to flow out in the opposite direction to the processing direction of the workpiece. In addition to shielding, it is also possible to shield the machined surface immediately after processing, which has the effect of preventing oxidation of the machined surface due to outside air and achieving laser processing with high processing accuracy.
第１図は本発明の一実施例を示すレーザ加工機用トーチ
の断面図、第２図は第１図の］Ｉ−ＩＩ断面図、第３図
は本発明の他の実施例を示す切欠溝の断面図、第４図は
本発明の他の実施例を示す一体形加工トーチの断面図、
第５図は従来のレーザ加工機を示す概略図である。
図において、（２）はレーザ光、（４）は加工ヘッド、
（５）は集光レンズ、（６）は供給口、（８）はノズル
、（９）は開口部、ＱＯＩは被加工物、（１２）は切欠
溝である。
図中、同一符号は同一または相当部分を示す。Fig. 1 is a cross-sectional view of a torch for a laser processing machine showing one embodiment of the present invention, Fig. 2 is a cross-sectional view taken along line I-II of Fig. 1, and Fig. 3 is a cutaway diagram showing another embodiment of the present invention. A sectional view of the groove, FIG. 4 is a sectional view of an integral processing torch showing another embodiment of the present invention,
FIG. 5 is a schematic diagram showing a conventional laser processing machine. In the figure, (2) is a laser beam, (4) is a processing head,
(5) is a condensing lens, (6) is a supply port, (8) is a nozzle, (9) is an opening, QOI is a workpiece, and (12) is a notch groove. In the drawings, the same reference numerals indicate the same or corresponding parts.
Claims (3)
ガスを供給する供給口とを備えた加工ヘッド、上記加工
ヘッドの下部に設けられレーザ光を通過させるとともに
補助ガスを噴出させるノズルとで構成したレーザ加工機
のトーチにおいて、上記ノズルの開口部に連続して設け
られた加工方向と逆方向に補助ガスを流出する切欠溝を
備えたことを特徴とするレーザ加工機用トーチ。(1) A processing head equipped with a condensing lens for the laser beam used to process the workpiece and a supply port for supplying auxiliary gas, and a nozzle provided at the bottom of the processing head that allows the laser beam to pass through and ejects the auxiliary gas. 1. A torch for a laser processing machine comprising: a notch groove continuously provided in the opening of the nozzle for allowing auxiliary gas to flow out in a direction opposite to the processing direction.
することを特徴とする特許請求の範囲第１項記載のレー
ザ加工機用トーチ。(2) The torch for a laser processing machine according to claim 1, wherein the groove width of the notched groove is larger than the bead width of the processing surface.
ことを特徴とする特許請求の範囲第１項または第２項記
載のレーザ加工機用トーチ。(3) The torch for a laser processing machine according to claim 1 or 2, wherein the nozzle and the processing head are formed as one unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62278791A JPH01122690A (en) | 1987-11-04 | 1987-11-04 | Torch for laser beam machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62278791A JPH01122690A (en) | 1987-11-04 | 1987-11-04 | Torch for laser beam machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01122690A true JPH01122690A (en) | 1989-05-15 |
Family
ID=17602229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62278791A Pending JPH01122690A (en) | 1987-11-04 | 1987-11-04 | Torch for laser beam machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01122690A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012506775A (en) * | 2008-10-28 | 2012-03-22 | ザ・ボーイング・カンパニー | Inert gas cover system for laser welding having a base and a wall with an opening |
| JP2014008521A (en) * | 2012-06-29 | 2014-01-20 | Mitsubishi Electric Corp | Machining nozzle of laser beam machine, and laser beam machine |
| KR101539704B1 (en) * | 2011-06-22 | 2015-07-28 | 가부시끼가이샤 도시바 | Laser irradiation apparatus and laser irradiation method |
-
1987
- 1987-11-04 JP JP62278791A patent/JPH01122690A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012506775A (en) * | 2008-10-28 | 2012-03-22 | ザ・ボーイング・カンパニー | Inert gas cover system for laser welding having a base and a wall with an opening |
| KR101539704B1 (en) * | 2011-06-22 | 2015-07-28 | 가부시끼가이샤 도시바 | Laser irradiation apparatus and laser irradiation method |
| US9186751B2 (en) | 2011-06-22 | 2015-11-17 | Kabushiki Kaisha Toshiba | Laser irradiation apparatus and laser irradiation method |
| JP2014008521A (en) * | 2012-06-29 | 2014-01-20 | Mitsubishi Electric Corp | Machining nozzle of laser beam machine, and laser beam machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5444211A (en) | Laser beam machine for cutting a workpiece using multiple machine conditions | |
| KR100235178B1 (en) | Laser beam machining method and device therefor | |
| CN110153554B (en) | Laser processing head | |
| JPS61123493A (en) | Laser working device | |
| JP5654780B2 (en) | Laser cutting / laser welding nozzle, laser processing machine using the same, and plate butt welding method using laser cutting / laser welding nozzle | |
| JP2001314985A (en) | Laser beam welding method and laser beam welding device | |
| KR970005525B1 (en) | Laser torch | |
| JPH01122690A (en) | Torch for laser beam machine | |
| JPH042353B2 (en) | ||
| JPH0299293A (en) | Laser machining head | |
| JPH0120721B2 (en) | ||
| US4780592A (en) | Apparatus for cutting workpieces by means of a high-energy beam | |
| JPH03110094A (en) | Welding head for laser robot | |
| JPH0450105B2 (en) | ||
| JPS6027487A (en) | Laser welding device | |
| JPH091374A (en) | Machining head for welding in laser beam machine | |
| JPH09136183A (en) | Laser beam machine and its processing torch | |
| JPS5970487A (en) | Laser processing nozzle | |
| JPH0299292A (en) | Laser machining nozzle | |
| JPS59163093A (en) | Laser beam head in laser working machine | |
| JPH04313485A (en) | Laser beam processing head | |
| JPH0195887A (en) | Wire feed nozzle | |
| JPH0484687A (en) | Multifunction nozzle for laser beam | |
| JPH11239889A (en) | Laser beam welding head in laser beam machining device | |
| JPH0719673Y2 (en) | Laser processing torch |