JP2016005846A - 自動車灯の同時レーザ溶接方法および関連する自動車灯 - Google Patents
自動車灯の同時レーザ溶接方法および関連する自動車灯 Download PDFInfo
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Abstract
【解決手段】自動車灯を作製するための溶接装置であって、容器本体は、第1の周囲プロファイルを有し、レンズ本体は、第2の周囲プロファイルを有し、相互に接触状態に配置されて、前記装置により溶接されることとなる溶接界面36を画定する。容器本体は、光線に対する吸収要素として機能し、レンズ本体は、光線の透過要素として機能する、複数のファイバ44と、相対的光軸X−Xの全体に沿ってレーザ光線の複数部分を平行化するために、ファイバ44から出る複数部分の広がりを変化させるための光導波路60、60’、60’’とを備え、光導波路手段は、レーザ放出デバイスにより生成されたレーザ光線をファイバから受ける入口と、前記導波路により平行化された前記レーザ光線を伝搬/透過させる出口とを備える。
【選択図】図8
Description
第1の周囲プロファイル20により画定された容器本体8を用意するステップと、
第2の周囲プロファイル28により内的に画定されたレンズ本体24を用意するステップと、
容器本体8の第1の周囲プロファイル20とレンズ本体24の第2の周囲プロファイル28とのそれぞれを少なくとも部分的に相互に関連付けるステップであって、前記周囲プロファイル20、28間の接触表面が溶接界面36を画定するステップと、
特徴的な発光スペクトルを有する光線または放射を放出する少なくとも1つのレーザ放出デバイスを用意するステップと、
レーザ放出デバイスからレーザ光線の複数部分を受け、レンズ本体24を通して溶接界面36に向かってそれらを送る複数のファイバ44を用意するステップであって、前記容器本体8は光線に対する吸収要素として機能し、レンズ本体24は光線の透過要素として機能するステップと、
少なくとも所定の光軸X−Xの全体に沿ってレーザ光線の複数部分を平行化するために、ファイバ44からの出力でのそれらの空間分布すなわち角度分布を変化させるための光導波路60’、60’’を用意するステップであって、前記光導波路60’、60’’は、レーザ放出デバイスにより生成されたレーザ光線をファイバ44から受ける入口64と、前記平行化されたレーザ光線を伝搬/透過させる出口68とを備えるステップと、
相互に対面し相互から機械的に分離した各自由端部72’、72’’を有する少なくとも2つの隣接し合う光導波路60’、60’’を配置するステップと、
溶接界面36に沿った光線の均質かつ均一な分布を実現するために、溶接界面36の隣接し合うおよび局所的に連続する部分に平行化された光線を送るように前記隣接し合う光導波路60’、60’’を構成するステップと
を備える。
Claims (21)
- 自動車ヘッドライト(4)を作製するための溶接装置(40)であって、前記溶接装置(40)は、
相互に溶接されることとなる容器本体(8)、およびレンズ本体(24)のロック手段(52、56)であって、ここにおいて、前記容器本体(8)は、第1の周囲プロファイル(20)を有し、前記レンズ本体(24)は、第2の周囲プロファイル(28)を有し、前記第1の周囲プロファイル(20)および前記第2の周囲プロファイル(28)は、相互に接触状態に配置されて、前記装置により溶接されることとなる溶接界面(36)を画定する、ロック手段(52、56)と、
レーザ光線を放出するレーザ放出デバイスまたはレーザ源と、
前記レーザ放出デバイスから前記レーザ光線の複数部分を受け、前記レンズ本体(24)を通して前記溶接界面(36)に向かって前記複数部分を送る複数のファイバ(44)であって、ここにおいて、前記容器本体(8)は、前記光線に対する吸収要素として機能し、前記レンズ本体(24)は、前記光線の透過要素として機能する、複数のファイバ(44)と、
相対的光軸(X−X)の全体に沿ってレーザ光線の前記複数部分を平行化するために、前記ファイバ(44)から出る前記複数部分の広がりを変化させるための光導波路手段(60、60’、60’’)と
を備え、
前記光導波路手段(60、60’、60’’)は、前記レーザ放出デバイスにより生成された前記レーザ光線を前記ファイバから受ける入口(64)と、前記導波路自体により平行化された前記レーザ光線を伝搬/透過させる出口(68)とを備える、溶接装置(40)において、
前記装置(40)は、相互から機械的に分離された各自由端部(72’、72’’)を有する光導波路手段(60’、60’’)を備え、
前記光導波路手段(60’、60’’)は、前記溶接界面(36)に沿った前記光線の均質かつ均一な分布を実現するために前記溶接界面(36)の隣接し合い局所的に連続する部分に平行化された光線を送るように構成されることを特徴とする、溶接装置(40)。 - 前記光導波路手段は、相互に対面し相互から機械的に分離された各自由端部(72’、72’’)を有する少なくとも2つの隣接し合う光導波路(60’、60’’)を備え、
前記隣接し合う光導波路(60’、60’’)は、前記溶接界面(36)に沿った前記光線の均質かつ均一な分布を実現するために、前記溶接界面(36)の隣接し合い局所的に連続する部分に平行化された光線を送るように構成される、請求項1に記載の溶接装置(40)。 - 前記隣接し合う光導波路(60’、60’’)は、前記隣接し合う光導波路(60’、60’’)の前記自由端部(72’、72’’)にて前記溶接界面(36)に対して垂直であり前記溶接界面(36)を通過する中間溶接面(M)に対して同一側に配置される、請求項1または2に記載の装置(40)。
- 前記隣接し合う光導波路(60’、60’’)は、前記隣接し合う光導波路(60’、60’’)の前記自由端部(72’、72’’)にて前記溶接界面(36)に対して垂直であり前記溶接界面(36)を通過する中間溶接面(M)に対して両側に配置される、請求項1から3のいずれか一項に記載の装置(40)。
- 前記隣接し合う光導波路(60’、60’’)の少なくとも一方が、前記隣接し合う光導波路(60’、60’’)の前記自由端部(72’、72’’)にて前記溶接界面(36)に少なくとも部分的に重畳され、それにより、前記少なくとも一方の光導波路(60’、60’’)の相対的光軸(X)を通過する前記光導波路の各中間面(R)は、前記溶接界面(36)に少なくとも部分的に交差する、請求項1から4のいずれか一項に記載の装置(40)。
- 前記隣接し合う光導波路(60’、60’’)の前記各自由端部(72’、72’’)は、前記溶接界面(36)に対して垂直であり前記溶接界面(36)を通過する中間溶接面(M)に対して垂直な横断面(T)まで延在する、請求項1から5のいずれか一項に記載の装置(40)。
- 前記隣接し合う光導波路(60’、60’’)の前記各自由端部(72’、72’’)は、前記溶接界面(36)に対して垂直であり前記溶接界面(36)を通過する中間溶接面(M)に対して垂直な横断面(T)を越えて延在し、前記自由端部(72’、72’’)は、前記横断面(T)の両側に延在する、請求項1から6のいずれか一項に記載の装置(40)。
- 前記隣接し合う光導波路(60’、60’’)は、前記相対的光軸(X)を通過する各中間面(R’、R’’)により画定され、前記中間面(R)同士は、相互に平行である、請求項1から7のいずれか一項に記載の装置(40)。
- 前記隣接し合う光導波路(60’、60’’)は、前記相対的光軸(X)を通過する各中間面(R’、R’’)により画定され、前記中間面(R)は、相互に入射する、請求項1から7のいずれか一項に記載の装置(40)。
- 前記隣接し合う光導波路(60’、60’’)の前記中間面(R’、R’’)は、前記溶接界面(36)の対応する部分に対して垂直である、請求項8または9に記載の装置(40)。
- 相互に隣接する前記光導波路(60’、60’’)の前記中間面(R’、R’’)は、相互に異なる第1の入射角(α)および第2の入射角(β)のそれぞれにしたがって、前記溶接界面(36)の対応部分に対して垂直な面に対して傾斜される、請求項8または9に記載の装置(40)。
- 前記隣接し合う光導波路(60’、60’’)は、幅(76)が相互に異なる各出口(68)を有し、前記幅(76)は、前記各光軸(X)を通過する前記光導波路(60’、60’’)の中間面に対して垂直に測定される、請求項1から11のいずれか一項に記載の装置(40)。
- 前記隣接し合う光導波路(60’、60’’)は、幅(76)が相互に異なる各入口(64)を有し、前記幅(76)は、前記各光軸(X)を通過する前記光導波路(60’、60’’)の中間面に対して垂直に測定される、請求項1から12のいずれか一項に記載の装置(40)。
- 前記隣接し合う光導波路(60’、60’’)は、全体的なウェッジ形状をとるように前記各出口(68)よりも幅が大きな入口(64)を有し、前記幅(76)は、前記各光軸(X)を通過する前記光導波路(60’、60’’)の中間面に対して垂直に測定される、請求項1から13のいずれか一項に記載の装置(40)。
- 前記隣接し合う光導波路(60’、60’’)は、前記レンズ本体(24)に向かって収束するように前記光軸(X−X)上に位置する中間面(R’、R’’)に対して対称に傾斜された一対の反射壁部(80)を備えるネガティブ光導波路である、請求項1から14のいずれか一項に記載の装置(40)。
- 前記光導波路(60’、60’’)は、前記レーザ光線の少なくとも一部分に関して全内部反射条件を満たすように適合化された固相本体を備えるポジティブ光導波路であり、前記固相本体は、前記レーザ光線の放出波長に対して透過性を有する材料から作製される、請求項1から14のいずれか一項に記載の装置(40)。
- 前記光導波路(60’、60’’)の前記出口(68)は、前記容器本体(8)に対して前記レンズ本体(24)を押圧するように前記外方壁部(32)と接触状態に前記出力(68)を配置するために、前記第2の周囲プロファイル(28)の対向側の前記レンズ本体(24)の外方壁部(32)に対する対応形状を有する、請求項1から16のいずれか一項に記載の装置(40)。
- 前記自由端部(72’、72’’)は、前記第2の周囲プロファイル(28)の対向側の前記レンズ本体(24)の外方壁部(32)に配置された、前記レンズ本体(24)のプロファイル/ジオメトリの変化部(84)に配置される、請求項1から17のいずれか一項に記載の装置(40)。
- 自動車ヘッドライト(4)を同時レーザ溶接する方法であって、前記方法は、
第1の周囲プロファイル(20)により画定される容器本体(8)を用意するステップと、
第2の周囲プロファイル(28)により内的に画定されるレンズ本体(24)を用意するステップと、
前記容器本体(8)の前記第1の周囲プロファイル(20)と前記レンズ本体(24)の前記第2の周囲プロファイル(28)とをそれぞれ少なくとも部分的に相互に関連付けるステップであって、ここにおいて、前記周囲プロファイル(20、28)間の接触表面が、溶接界面(36)を画定する、それぞれ少なくとも部分的に相互に関連付けるステップと、
特徴的な発光スペクトルを有する光線または放射を放出する少なくとも1つのレーザ放出デバイスを用意するステップと、
前記レーザ放出デバイスから前記レーザ光線の複数部分を受け、前記レンズ本体(24)を通して前記溶接界面(36)に向かって前記複数部分を送る複数のファイバ(44)を用意するステップであって、ここにおいて、前記容器本体(8)は、前記光線に対する吸収要素として機能し、前記レンズ本体(24)は、前記光線の透過要素として機能する、複数のファイバ(44)を用意するステップと、
少なくとも所定の光軸(X−X)の全体に沿って前記レーザ光線の前記複数部分を平行化させるために、前記ファイバ(44)から出る前記複数部分の空間分布を変化させるための光導波路手段を用意するステップであって、ここにおいて、前記光学デバイスは、前記レーザ放出デバイスにより生成された前記レーザ光線を前記ファイバから受ける入口と、前記平行化されたレーザ光線を伝搬/透過させる出口とを備える、光導波路手段を用意するステップと、
を備える、方法において、
相互から機械的に分離された各自由端部(72’、72’’)を有する隣接し合う光導波路手段(60’、60’’)を配置することと、
前記溶接界面(36)に沿った前記光線の均質かつ均一な分布を実現するために、前記溶接界面(36)の隣接し合うおよび局所的に連続する部分に平行化された光線を送るように前記光導波路手段(60’、60’’)を構成することと
を特徴とする、方法。 - 前記第2の周囲プロファイル(28)の対向側の前記レンズ本体(24)の外方壁部(32)に配置された、前記レンズ本体(24)のプロファイル/ジオメトリの変化部(84)に前記自由端部(72’、72’’)を配置する段階を備える、請求項19に記載の自動車ヘッドライト(4)を作製するための同時レーザ溶接方法。
- 請求項1から18のいずれか一項に記載の溶接装置(40)を用意するステップを備える、請求項19または20に記載の自動車ヘッドライト(4)を作製するための同時レーザ溶接方法。
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