JPH0760470A - Laser beam machine - Google Patents
Laser beam machineInfo
- Publication number
- JPH0760470A JPH0760470A JP5214430A JP21443093A JPH0760470A JP H0760470 A JPH0760470 A JP H0760470A JP 5214430 A JP5214430 A JP 5214430A JP 21443093 A JP21443093 A JP 21443093A JP H0760470 A JPH0760470 A JP H0760470A
- Authority
- JP
- Japan
- Prior art keywords
- laser beam
- laser
- prism
- welding
- condensing
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/0604—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams
- B23K26/0608—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams in the same heat affected zone [HAZ]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、レーザ加工機に関し、
特に高品質の溶接加工等の可能なレーザ加工機に関す
る。BACKGROUND OF THE INVENTION The present invention relates to a laser processing machine,
Particularly, the present invention relates to a laser beam machine capable of high-quality welding and the like.
【０００２】[0002]
【従来の技術】レーザ溶接において、小スポットに集束
させたレーザビームを溶接線に沿って移動させると、溶
融金属幅が狭く、かつ深くなり、溶接金属内にガス成分
を閉じ込めたポロシティも発生する。2. Description of the Related Art In laser welding, when a laser beam focused on a small spot is moved along a welding line, the width of molten metal becomes narrow and deep, and porosity in which gas components are confined in the weld metal is also generated. .
【０００３】そこで、レーザ肉盛溶接においては、所要
の溶接面積を得、同時に品質改善を図るため、レーザビ
ームを溶接線方向と直交する方向に振動させる技術が知
られている。Therefore, in laser overlay welding, a technique is known in which a laser beam is vibrated in a direction orthogonal to the welding line direction in order to obtain a required welding area and at the same time improve quality.
【０００４】さらに、レーザビームの光軸に対して、偏
心して配置した集光レンズを回転させることにより、ビ
ームスポットを円周状に移動させ、所要幅を有する溶接
部を得るレーザ溶接機が提案されている（たとえば、特
開平３−２８５７８５号公報）。Further, a laser welding machine is proposed in which a beam spot is circumferentially moved by rotating a condenser lens arranged eccentrically with respect to the optical axis of the laser beam to obtain a weld having a required width. (For example, Japanese Patent Laid-Open No. 3-285785).
【０００５】また、重ね合わせ溶接において、集光レン
ズを３角プリズムと合体させてビーム集光機能と共に偏
向機能を持たせ、この合体構造を回転させることによっ
てレーザビームスポットを回転させ、環状の溶接部を得
るレーザ溶接機も提案されている（たとえば、特開平３
−２４３２９２号公報）。Further, in the lap welding, a condenser lens is combined with a triangular prism to have a beam condensing function and a deflecting function, and the laser beam spot is rotated by rotating this combined structure to form an annular weld. A laser welding machine for obtaining parts has also been proposed (for example, Japanese Patent Laid-Open No. Hei 3)
No. 243292).
【０００６】ところで、近年、レーザ加工においてレー
ザビームを光ファイバで伝送する技術が進歩してきてい
る。レーザビームを光ファイバで伝送すれば、意図せざ
るレーザ照射による加熱事故等を防止することができ、
レーザビームの取り扱いも容易となる。By the way, in recent years, a technique for transmitting a laser beam through an optical fiber in laser processing has advanced. By transmitting the laser beam through an optical fiber, it is possible to prevent heating accidents due to unintended laser irradiation,
Handling of the laser beam becomes easy.
【０００７】また、溶接において、２個の物品を１個所
で溶接すると、加熱、冷却機の熱変形により加工対象物
に歪が生じる。複数点でスポット溶接した後に溶接線に
沿って連続溶接すれば熱歪は減少するが、これをレーザ
加工において行なおうとすると、操作が複雑となる。Further, in welding, when two articles are welded at one place, distortion occurs in the workpiece due to thermal deformation of the heating and cooling machine. If spot welding is performed at a plurality of points and then continuous welding is performed along the welding line, thermal strain is reduced, but if this is attempted in laser processing, the operation becomes complicated.
【０００８】[0008]
【発明が解決しようとする課題】以上説明したように、
レーザ加工技術は進歩を続けているが、未だ解決されて
いない問題点もあり、さらなる進歩が望まれている。As described above,
Although the laser processing technology continues to progress, there are still unsolved problems, and further progress is desired.
【０００９】本発明の目的は、低歪で品質のよいレーザ
溶接等が可能なレーザ加工機を提供することである。An object of the present invention is to provide a laser beam machine which can perform high quality laser welding with low distortion.
【００１０】[0010]
【課題を解決するための手段】本発明のレーザ加工機
は、レーザ光を伝送し、出射する光伝送系と、光伝送系
から出散されるレーザビームを分割するビーム分割部
と、ビーム分割部から出射される複数のレーザビームを
異なる位置に集光させる集光レンズ部と、少なくともビ
ーム分割部を回転させてレーザビームの集光点を回転さ
せる回転駆動機構とを有する。A laser beam machine according to the present invention comprises an optical transmission system for transmitting and emitting a laser beam, a beam splitting unit for splitting a laser beam emitted from the optical transmission system, and a beam splitting unit. It has a condensing lens unit that condenses a plurality of laser beams emitted from the unit at different positions, and a rotation drive mechanism that rotates at least the beam splitting unit to rotate the condensing point of the laser beam.
【００１１】[0011]
【作用】レーザビームを分割して複数のレーザビームと
し、これらを回転させることにより、同時に２点におけ
るレーザ加工が可能となる。By dividing the laser beam into a plurality of laser beams and rotating them, laser processing at two points becomes possible at the same time.
【００１２】レーザ溶接においては、レーザ溶接開始時
に同時に２点において溶接を行なうことにより、加工対
象物に生じる歪を低減し、低歪のレーザ溶接を可能とす
る。In laser welding, by performing welding at two points at the same time at the start of laser welding, the strain generated in the object to be processed can be reduced and low-distortion laser welding can be performed.
【００１３】[0013]
【実施例】図１は、本発明の一実施例によるレーザ溶接
機の構成を概略的に示す。レーザ発振機から発射された
レーザビームは、ファイバ中を転送され、ファイバ先端
１から図中下方に出射する。1 is a schematic diagram showing the construction of a laser welding machine according to an embodiment of the present invention. The laser beam emitted from the laser oscillator is transferred through the fiber and emitted from the fiber tip 1 downward in the figure.
【００１４】ファイバ先端１から発散して出射されたレ
ーザ光は、コリメートレンズ２によってコリメートさ
れ、平行光束となる。この平行光束は、直進して屋根形
プリズム３に入射する。屋根形プリズム３は、図中上側
に左右に傾いた対称的入射面を有する。The laser light diverged and emitted from the fiber tip 1 is collimated by the collimator lens 2 and becomes a parallel light flux. This parallel light flux goes straight and enters the roof prism 3. The roof prism 3 has a symmetrical incident surface that is inclined to the left and right on the upper side in the figure.
【００１５】屋根形プリズム３は、図中左半分に入射し
たレーザビームは右下方に偏向し、右半分に入射したレ
ーザビームは左下方に偏向する。このように、屋根形プ
リズム３は、入射するレーザビームを２つのビームに分
割する役割を果たす。In the roof-shaped prism 3, the laser beam incident on the left half in the figure is deflected to the lower right, and the laser beam incident on the right half is deflected to the lower left. In this way, the roof-shaped prism 3 serves to split the incident laser beam into two beams.
【００１６】なお、１本の平行光束を２本のビームに分
割する場合を説明したが、３つ以上のビームに分割する
ことも可能である。また、屋根形プリズムでレーザビー
ムを分割する場合を説明したが、ハーフミラー等の構成
によってレーザビームを分割することも可能である。Although the case where one parallel light beam is divided into two beams has been described, it is also possible to divide it into three or more beams. Further, although the case where the laser beam is split by the roof prism has been described, it is also possible to split the laser beam by a configuration such as a half mirror.
【００１７】プリズム３で分割された複数のレーザビー
ムは、集光レンズ４によって集光され、異なる点にスポ
ット状に集光される。集光点の位置は、プリズム３の与
える偏向（屈折）角度、プリズム３と集光レンズ４との
間の距離、集光レンズ４の集光距離等によって定まる。The plurality of laser beams divided by the prism 3 are condensed by the condenser lens 4 and are condensed in spots at different points. The position of the condensing point is determined by the deflection (refraction) angle provided by the prism 3, the distance between the prism 3 and the condensing lens 4, the condensing distance of the condensing lens 4, and the like.
【００１８】なお、屋根型プリズム３および集光レンズ
４は、下部鏡筒６に保持されており、下部鏡筒６はベア
リング８によって上部鏡筒５に対して回転可能に保持さ
れたプーリ１１に螺子止めされている。The roof prism 3 and the condenser lens 4 are held by a lower lens barrel 6, and the lower lens barrel 6 is mounted on a pulley 11 which is rotatably held by the bearing 8 with respect to the upper lens barrel 5. It is screwed.
【００１９】プリズム３および集光レンズ４を収容した
下部鏡筒６を交換することにより、所望のビーム分割特
性、集光特性を得ることができる。なお、コリメートレ
ンズ２およびファイバ先端１は、上部鏡筒５に固定され
ている。ファイバ先端１、コリメートレンズ２、プリズ
ム３、集光レンズ４は、機械加工精度内で光軸上に配置
されている。By exchanging the lower lens barrel 6 accommodating the prism 3 and the condenser lens 4, desired beam splitting characteristics and condensing characteristics can be obtained. The collimator lens 2 and the fiber tip 1 are fixed to the upper barrel 5. The fiber tip 1, the collimator lens 2, the prism 3, and the condenser lens 4 are arranged on the optical axis within the accuracy of machining.
【００２０】図中、左方には、上部鏡筒５が固定さてい
る固定構造物が配置され、その内部にモータ９が設置さ
れている。モータ９の回転軸は、図中下方に延び、プー
リ１０と結合している。プーリ１０とプーリ１１は、高
さ方向が一致して配置され、その周囲にベルト１２が結
合されている。A fixed structure to which the upper lens barrel 5 is fixed is arranged on the left side of the drawing, and a motor 9 is installed inside the fixed structure. The rotation shaft of the motor 9 extends downward in the drawing and is connected to the pulley 10. The pulley 10 and the pulley 11 are arranged so that the height directions thereof coincide with each other, and a belt 12 is coupled around them.
【００２１】プーリ１０の径は、プーリ１１の径よりも
小さく、モータ９の回転にしたがってベルト１２を駆動
し、減速した回転をプーリ１１に与える。プーリ１１が
ベアリング８にガイドされて回転されると、プーリ１１
に結合した下部鏡筒６が回転し、プリズム３および集光
レンズ４が回転する。The diameter of the pulley 10 is smaller than that of the pulley 11, and the belt 12 is driven in accordance with the rotation of the motor 9 to give the pulley 11 decelerated rotation. When the pulley 11 is rotated by being guided by the bearing 8, the pulley 11 is rotated.
The lower lens barrel 6 coupled to is rotated, and the prism 3 and the condenser lens 4 are rotated.
【００２２】この下部鏡筒６の回転に伴ってプリズム３
で分割されたレーザビームは、それぞれ円運動を行な
う。プリズム３が光軸に関して対称的な屋根形プリズム
であれば、２つのビームスポットは同一円周上を回転す
る。As the lower lens barrel 6 rotates, the prism 3
The laser beams divided by are each circularly moved. If the prism 3 is a roof-shaped prism symmetrical with respect to the optical axis, the two beam spots rotate on the same circumference.
【００２３】図２は、以上説明したレーザ加工機から光
学系を抽出し、レーザビームとの関連を示す。ファイバ
先端１は、ファイバのコアに相当し、その端部からレー
ザビームを発散して出射する。ファイバ先端１の径は、
たとえば約１ｍｍである。FIG. 2 shows the relationship with a laser beam by extracting an optical system from the laser processing machine described above. The fiber tip 1 corresponds to the core of the fiber, and diverges and emits a laser beam from the end thereof. The diameter of the fiber tip 1 is
For example, it is about 1 mm.
【００２４】ファイバ先端１から発散するレーザビーム
を受けるコリメートレンズ２は、発散するレーザビーム
を平行光束に変換する。コリメートレンズ２の焦点ｆ１
は、ほぼコリメートレンズ２とファイバ先端１との間の
距離に相当する。The collimating lens 2 which receives the laser beam diverging from the fiber tip 1 converts the diverging laser beam into a parallel light beam. Focus f1 of collimating lens 2
Corresponds to the distance between the collimating lens 2 and the fiber tip 1.
【００２５】屋根形プリズム３の２つの入射面は、入射
するレーザ平行光束に対して角度θ傾いた対称的な面法
線を有する。プリズム３の出射面は平面であり、プリズ
ム３から出射するレーザビームは、元の方向からδ傾い
た偏向角度を有する。プリズム３から出射した平行レー
ザビームは、集光レンズ４に入射し、集光されて２つの
スポットに集まる。The two entrance surfaces of the roof prism 3 have symmetrical surface normals inclined by an angle θ with respect to the incident laser parallel light flux. The emission surface of the prism 3 is a plane, and the laser beam emitted from the prism 3 has a deflection angle that is inclined by δ from the original direction. The parallel laser beam emitted from the prism 3 enters the condenser lens 4, is condensed, and is collected in two spots.
【００２６】プリズム３の屈折率をｎ、集光レンズ４の
焦点距離をｆ２とすると、集光スポット径φＤおよび集
光スポット間の間隔ｄは、 φＤ＝φ１ｍｍ×（ｆ２／ｆ１） ｄ＝２×ｆ２×ｔａｎδ となる。ただし、δ（＜または≒）（ｎ−１）θであ
る。Assuming that the refractive index of the prism 3 is n and the focal length of the condenser lens 4 is f2, the condensed spot diameter φD and the distance d between the condensed spots are φD = φ1 mm × (f2 / f1) d = 2 Xf2 * tanδ. However, δ (<or ≈) (n-1) θ.
【００２７】すなわち、ファイバ径に対する集光スポッ
ト径はレンズ２、４の焦点距離の比によって定まり、集
光スポット間の距離ｄは、プリズム３による偏向角度お
よび集光レンズ４の焦点距離によって定まる。That is, the diameter of the focused spot with respect to the fiber diameter is determined by the ratio of the focal lengths of the lenses 2 and 4, and the distance d between the focused spots is determined by the deflection angle of the prism 3 and the focal length of the focusing lens 4.
【００２８】図１の構成において、下部鏡筒６を交換可
能としたことにより、複数の下部鏡筒を準備しておき、
適宜所望のφＤおよびｄを有する下部鏡筒を交換するこ
とができる。In the configuration of FIG. 1, since the lower lens barrel 6 is replaceable, a plurality of lower lens barrels are prepared,
The lower barrel having the desired φD and d can be exchanged appropriately.
【００２９】図３は、図１に示すレーザ溶接機を用い、
突き合わせ溶接を行なう場合の操作を概略的に示す。加
工対象物１３と１４が突き合わせて配置されている。破
線ｃ１は、２本の集光レーザビーム共通の軌跡である。FIG. 3 uses the laser welding machine shown in FIG.
The operation when performing butt welding is schematically shown. The objects to be processed 13 and 14 are arranged to face each other. A broken line c1 is a locus common to the two focused laser beams.
【００３０】図１の構成において、下部鏡筒６を回転さ
せると、集光されるレーザビームスポットは破線ｃ１の
円周上を回転する。２つの点Ｓ１、Ｓ２で溶接が実行さ
れると、加工対象物１３、１４は２つの点で溶融部が形
成され、２つの点Ｓ１、Ｓ２の回転軌跡により、大口径
スポット径でのレーザビーム溶接が実現できる。In the configuration of FIG. 1, when the lower barrel 6 is rotated, the focused laser beam spot rotates on the circumference of the broken line c1. When welding is performed at the two points S1 and S2, the workpieces 13 and 14 form a melted portion at two points, and the rotation loci of the two points S1 and S2 cause a laser beam with a large diameter spot diameter. Welding can be realized.
【００３１】溶接によって生じる加熱、冷却の熱変形に
おいても、溶接開始点が２点で開始しているため、加工
対象物１３、１４に生じる熱変形は減少される。このた
め、熱歪の少ない溶接が可能となる。Also in the thermal deformation of heating and cooling caused by welding, since the welding start points start at two points, the thermal deformation of the workpieces 13 and 14 is reduced. For this reason, welding with less thermal strain becomes possible.
【００３２】溶接開始後、レーザビームを軌跡ｃ１上で
回転させつつ、加工対象物１３、１４を溶接線に沿って
移動させると、所要の溶接幅を有する突き合わせ溶接が
実行される。After the welding is started, when the workpieces 13 and 14 are moved along the welding line while rotating the laser beam on the locus c1, butt welding having a required welding width is executed.
【００３３】図４は、本発明の他の実施例によるガスア
シスト・レーザ加工機の構成を部分的に示す。本実施例
においては、レーザビーム出射部分において、プリズム
３および集光レンズ４を保持する下部鏡筒６の周囲を、
アシストガス取入口１５を有するハウジング１６が取り
囲んでいる。FIG. 4 partially shows the configuration of a gas assisted laser beam machine according to another embodiment of the present invention. In this embodiment, in the laser beam emitting portion, the periphery of the lower lens barrel 6 holding the prism 3 and the condenser lens 4 is
A housing 16 having an assist gas intake 15 surrounds it.
【００３４】アシストガス取入口１５から導入されたア
シストガスは、ハウジング１６によって案内され、下部
噴出口１７から下方に噴出する。下部噴出口１７の開口
部分は、図中上部に示したプリズム３、集光レンズ４を
介して集光されるレーザビームと接触しないように設計
される。アシストガスとしては、切断用には酸素や溶媒
用には不活性ガス等が用いられる。The assist gas introduced from the assist gas intake port 15 is guided by the housing 16 and jets downward from the lower jet port 17. The opening portion of the lower ejection port 17 is designed so as not to come into contact with the laser beam focused through the prism 3 and the condenser lens 4 shown in the upper part of the figure. As the assist gas, oxygen for cutting and an inert gas for solvent are used.
【００３５】本発明者らは、上述のファイバ出射光学系
を用い、集光スポット径φＤ＝６００μｍ、集光スポッ
ト間隔ｄ＝１ｍｍとなるレンズ・プリズム系を選択し、
厚さ０．８ｍｍのＳＵＳ３０４板の重ね合わせ溶接およ
び突き合わせ溶接を実験し、それぞれ良好な溶接部を得
ることができた。The inventors of the present invention selected the lens / prism system having the focused spot diameter φD = 600 μm and the focused spot interval d = 1 mm by using the above-mentioned fiber emitting optical system.
Experiments of lap welding and butt welding of a SUS304 plate having a thickness of 0.8 mm were carried out, and good welds could be obtained respectively.
【００３６】ここで、１スポットのレーザ集光径をデフ
ォーカスして溶接した場合、また、１スポットのレーザ
集光径を偏向角度をつけて回転させながらウィービング
溶接した場合と、上述の２スポットレーザ集光径を回転
させながら溶接した場合とを比較した。Here, the case where the laser condensing diameter of one spot is defocused and welded, and the case where weaving welding is performed while rotating the laser condensing diameter of one spot at a deflection angle and the above two spots are used. Comparison was made with the case where welding was performed while rotating the laser condensing diameter.
【００３７】ギャップ間隔の大きいサンプルを対象物と
すると、上述の実施例にしたがって２本のレーザビーム
に分岐し、集光したレーザビームスポットをサンプルの
各々に対して同時にレーザ照射しながらウイービング溶
接する方が、１スポットのレーザ集光径を用いる場合よ
りも良好な溶接結果を与えることが判った。これは、分
岐されたレーザビームが互いに余熱効果を与え合うこと
等によるものと考えられる。When a sample having a large gap is used as an object, the laser beam is split into two laser beams in accordance with the above-described embodiment, and the focused laser beam spots are simultaneously irradiated with the laser beam to perform the weaving welding. It has been found that a better welding result is obtained when the laser condensing diameter of one spot is used. It is considered that this is because the branched laser beams give each other a residual heat effect.
【００３８】なお、レーザ加工により溶接を行なう場合
を説明したが、同様の構成を用い、レーザ切断を行なう
ことも可能である。このような場合においても、レーザ
ビームを分割し、複数の点に照射することにより、加熱
点が分散し、加工対象物に与える熱歪み等を減少するこ
とが可能と考えられる。また、複数本に分割したレーザ
ビームは回転させる他、往復運動させたり、停止させた
りしてもよい。Although the case where welding is performed by laser processing has been described, laser cutting can be performed using the same configuration. Even in such a case, it is considered that by dividing the laser beam and irradiating it to a plurality of points, the heating points are dispersed and the thermal strain or the like given to the object to be processed can be reduced. Further, the laser beam divided into a plurality of beams may be rotated, reciprocated, or stopped.
【００３９】以上実施例に沿って本発明を説明したが、
本発明はこれらに制限されるものではない。たとえば、
種々の変更、改良、組み合わせ等が可能なことは当業者
に自明であろう。The present invention has been described above with reference to the embodiments.
The present invention is not limited to these. For example,
It will be apparent to those skilled in the art that various changes, improvements, combinations and the like can be made.
【００４０】[0040]
【発明の効果】以上説明したように、本発明によれば、
２本以上に分岐したレーザビームを同時に用いてレーザ
加工を行なうことにより、従来のレーザ加工よりも高速
かつ低歪で品質の良いレーザ加工を行なうことが可能と
なる。As described above, according to the present invention,
By performing laser processing by simultaneously using two or more branched laser beams, it becomes possible to perform high-quality laser processing at higher speed and with lower distortion than conventional laser processing.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の実施例によるレーザ溶接機の構成を概
略的に示す断面図である。FIG. 1 is a sectional view schematically showing a configuration of a laser welding machine according to an embodiment of the present invention.
【図２】図１のレーザ溶接機における光学系を抽出して
示す概略断面図である。FIG. 2 is a schematic sectional view showing an optical system extracted from the laser welding machine shown in FIG.
【図３】図１のレーザ溶接機を用い、突き合わせ溶接を
行なう場合の手順を説明するための概念図である。FIG. 3 is a conceptual diagram for explaining a procedure when butt welding is performed using the laser welding machine of FIG.
【図４】本発明の他の実施例によるガスアシストレーザ
加工機の構成を示す概略部分断面図である。FIG. 4 is a schematic partial cross-sectional view showing the configuration of a gas-assisted laser beam machine according to another embodiment of the present invention.
１ ファイバ先端 ２ コリメートレンズ ３ プリズム ４ 集光レンズ ５ 上部鏡筒 ６ 下部鏡筒 ８ ベアリング ９ モータ １０、１１ プーリ １２ ベルト １３、１４ 加工対象物 １５ アシストガス取入口 １６ ハウジング １７ 下部噴出口 ｃ１ レーザビーム軌跡 Ｓ１、Ｓ２ レーザビームスポット DESCRIPTION OF SYMBOLS 1 Fiber tip 2 Collimating lens 3 Prism 4 Condensing lens 5 Upper lens barrel 6 Lower lens barrel 8 Bearing 9 Motors 10, 11 Pulley 12 Belts 13, 14 Object to be processed 15 Assist gas inlet 16 Housing 17 Lower jet outlet c1 Laser beam Trajectory S1, S2 Laser beam spot
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年１２月８日[Submission date] December 8, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図３[Name of item to be corrected] Figure 3
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図３】 [Figure 3]
フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２３Ｋ 26/08 Ｂ Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display area B23K 26/08 B
Claims (3)
と、 光伝送系から出散されるレーザビームを分割するビーム
分割部と、 ビーム分割部から出射される複数のレーザビームを異な
る位置に集光させる集光レンズ部と、 少なくともビーム分割部を回転させてレーザビームの集
光点を回転させる回転駆動機構とを有するレーザ加工
機。1. An optical transmission system for transmitting and emitting laser light, a beam splitting unit for splitting a laser beam emitted from the optical transmission system, and a plurality of laser beams emitted from the beam splitting unit at different positions. A laser beam machine having a condensing lens unit for condensing light onto a laser beam, and a rotation driving mechanism for rotating a condensing point of a laser beam by rotating at least a beam dividing unit.
む請求項１記載のレーザ加工機。2. The laser beam machine according to claim 1, wherein the beam splitter includes a roof prism.
バから出射する光をコリメートするコリメートレンズと
を含む請求項１記載のレーザ加工機。3. The laser beam machine according to claim 1, wherein the optical transmission system includes an optical fiber and a collimating lens that collimates light emitted from the optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5214430A JP2828879B2 (en) | 1993-08-30 | 1993-08-30 | Laser processing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5214430A JP2828879B2 (en) | 1993-08-30 | 1993-08-30 | Laser processing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0760470A true JPH0760470A (en) | 1995-03-07 |
| JP2828879B2 JP2828879B2 (en) | 1998-11-25 |
Family
ID=16655659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5214430A Expired - Lifetime JP2828879B2 (en) | 1993-08-30 | 1993-08-30 | Laser processing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2828879B2 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0786305A1 (en) * | 1996-01-24 | 1997-07-30 | Canon Kabushiki Kaisha | Laser processing apparatus and method for manufacturing a liquid jet recording head by use of such laser processing apparatus |
| FR2755048A1 (en) * | 1996-10-31 | 1998-04-30 | Renault Automation | Device for butt welding thin metal plates by laser beam |
| EP0771606A3 (en) * | 1995-11-04 | 1998-06-03 | Volkswagen Aktiengesellschaft | Beam welding process with edge rounding |
| WO1998039136A1 (en) * | 1997-03-06 | 1998-09-11 | Automated Welding Systems Inc. | Multiple beam laser welding apparatus |
| EP0781622A3 (en) * | 1995-12-27 | 1999-11-10 | Toyota Jidosha Kabushiki Kaisha | Process and apparatus for welding workpieces with two or more laser beams whose spots are oscillated across welding direction |
| WO2000000320A1 (en) * | 1998-06-29 | 2000-01-06 | Automated Welding Systems Incorporated | Method of laser welding tailored blanks |
| JP2008134468A (en) * | 2006-11-28 | 2008-06-12 | Ricoh Opt Ind Co Ltd | Condensing optical system and optical processing device |
| WO2012147213A1 (en) * | 2011-04-28 | 2012-11-01 | Ｊｆｅスチール株式会社 | Method for producing laser welded steel pipe |
| JP2015178130A (en) * | 2014-03-20 | 2015-10-08 | 日立造船株式会社 | Welding device and welding method |
| WO2016150425A1 (en) | 2015-03-24 | 2016-09-29 | Scansonic Mi Gmbh | Laser beam joining method and laser machining optics |
| JP2017113766A (en) * | 2015-12-22 | 2017-06-29 | 株式会社豊田中央研究所 | Laser processing apparatus, laser processing method, optical system, and padding finished article |
| WO2021063661A1 (en) * | 2019-10-02 | 2021-04-08 | Robert Bosch Gmbh | Method for laser welding and component assembly |
-
1993
- 1993-08-30 JP JP5214430A patent/JP2828879B2/en not_active Expired - Lifetime
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0771606A3 (en) * | 1995-11-04 | 1998-06-03 | Volkswagen Aktiengesellschaft | Beam welding process with edge rounding |
| EP0781622A3 (en) * | 1995-12-27 | 1999-11-10 | Toyota Jidosha Kabushiki Kaisha | Process and apparatus for welding workpieces with two or more laser beams whose spots are oscillated across welding direction |
| EP0786305A1 (en) * | 1996-01-24 | 1997-07-30 | Canon Kabushiki Kaisha | Laser processing apparatus and method for manufacturing a liquid jet recording head by use of such laser processing apparatus |
| US6019589A (en) * | 1996-01-24 | 2000-02-01 | Canon Kabushiki Kaisha | Laser processing apparatus and method for manufacturing a liquid jet recording head by use of such laser processing apparatus |
| FR2755048A1 (en) * | 1996-10-31 | 1998-04-30 | Renault Automation | Device for butt welding thin metal plates by laser beam |
| WO1998039136A1 (en) * | 1997-03-06 | 1998-09-11 | Automated Welding Systems Inc. | Multiple beam laser welding apparatus |
| EP1052052A1 (en) * | 1997-03-06 | 2000-11-15 | Automated Welding Systems Inc. | Multiple beam laser welding apparatus |
| WO2000000320A1 (en) * | 1998-06-29 | 2000-01-06 | Automated Welding Systems Incorporated | Method of laser welding tailored blanks |
| GB2354196A (en) * | 1998-06-29 | 2001-03-21 | Automated Welding Systems Inc | Method of laser welding tailored banks |
| JP2008134468A (en) * | 2006-11-28 | 2008-06-12 | Ricoh Opt Ind Co Ltd | Condensing optical system and optical processing device |
| WO2012147213A1 (en) * | 2011-04-28 | 2012-11-01 | Ｊｆｅスチール株式会社 | Method for producing laser welded steel pipe |
| CN103501955A (en) * | 2011-04-28 | 2014-01-08 | 杰富意钢铁株式会社 | Method for producing laser welded steel pipe |
| EP2703112A4 (en) * | 2011-04-28 | 2014-11-05 | Jfe Steel Corp | Method for producing laser welded steel pipe |
| JP2015178130A (en) * | 2014-03-20 | 2015-10-08 | 日立造船株式会社 | Welding device and welding method |
| WO2016150425A1 (en) | 2015-03-24 | 2016-09-29 | Scansonic Mi Gmbh | Laser beam joining method and laser machining optics |
| DE102015104411A1 (en) * | 2015-03-24 | 2016-09-29 | Scansonic Mi Gmbh | Laser beam joining process and laser processing optics |
| DE102015104411B4 (en) | 2015-03-24 | 2017-02-16 | Scansonic Mi Gmbh | Laser beam joining process and laser processing optics |
| CN107405711A (en) * | 2015-03-24 | 2017-11-28 | 斯甘索尼克咪有限公司 | Laser beam connection method and Laser Processing optical instrument |
| JP2017113766A (en) * | 2015-12-22 | 2017-06-29 | 株式会社豊田中央研究所 | Laser processing apparatus, laser processing method, optical system, and padding finished article |
| WO2017110241A1 (en) * | 2015-12-22 | 2017-06-29 | 株式会社豊田中央研究所 | Laser processing device, laser processing method, optical system, and built-up item |
| WO2021063661A1 (en) * | 2019-10-02 | 2021-04-08 | Robert Bosch Gmbh | Method for laser welding and component assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2828879B2 (en) | 1998-11-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0929376B2 (en) | A method of processing a material by means of a laser beam | |
| JP3686317B2 (en) | Laser processing head and laser processing apparatus provided with the same | |
| JP3798975B2 (en) | Method and apparatus for laser cutting with double flow and double focused cutting heads | |
| JP2828879B2 (en) | Laser processing machine | |
| JPH08108289A (en) | Optical device for laser beam machining | |
| JP2001276988A (en) | Laser processing apparatus | |
| JPH05293730A (en) | Complex machine tool capable of laser machining | |
| JPH10111471A (en) | Laser optical system and laser welding device | |
| JP2004001084A (en) | Twin spotting laser welding method and equipment | |
| JPH04322891A (en) | Laser beam machine | |
| JP5446334B2 (en) | Laser welding apparatus and laser welding method | |
| JPH11156579A (en) | Methods for laser cutting, laser piercing, laser welding and laser decoration, and laser processing heads therefor | |
| JP2902550B2 (en) | Laser processing machine | |
| CN110977159A (en) | Laser light path component for forming annular light spots | |
| JP2664625B2 (en) | Laser cutting method and apparatus | |
| JP2006150433A (en) | Laser beam machining apparatus | |
| JP3905732B2 (en) | Laser processing head, laser cutting apparatus and laser cutting method using the same | |
| JP3157798B2 (en) | Laser processing machine | |
| JPH08206864A (en) | Laser beam machine | |
| JPH07185856A (en) | Method and device for laser beam machining | |
| JP2001047272A (en) | Method for laser beam welding | |
| JPH06182570A (en) | Laser beam welding method | |
| JP7011557B2 (en) | Laser light scanning device and laser processing device | |
| JPH07185860A (en) | Laser beam machining device | |
| JP2004114090A (en) | Laser machining method, and laser machining device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19980825 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20070918 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080918 Year of fee payment: 10 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080918 Year of fee payment: 10 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090918 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100918 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100918 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110918 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120918 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130918 Year of fee payment: 15 |