JP6513306B1 - レーザ装置、レーザ加工機およびレーザ装置の出力制御方法 - Google Patents
レーザ装置、レーザ加工機およびレーザ装置の出力制御方法 Download PDFInfo
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Abstract
Description
図1は、実施の形態にかかるレーザ装置の構成を示す図である。レーザ装置100Aは、第1レーザモジュールM1と、第2レーザモジュールM2と、第3レーザモジュールM3とを備えている。また、レーザ装置100Aは、複数の駆動電源部として、第1駆動電源41、第2駆動電源42、および第3駆動電源43を備えている。また、レーザ装置100Aは、部分反射ミラー61〜63と、第1出力検出部51と、第2出力検出部52と、第3出力検出部53とを備えている。また、レーザ装置100Aは、光結合部15と、結合出力検出部55と、制御装置5Aとを備えている。
Claims (7)
- 複数のレーザモジュールを備えたレーザ装置であって、
前記レーザモジュールを駆動する複数の駆動電源部と、
前記レーザモジュールからのレーザ出力を検出し、検出値を第1出力信号として出力する複数のレーザ出力検出部と、
複数のレーザ出力を結合した後の全レーザ出力を検出し、検出値を第2出力信号として出力する結合出力検出部と、
前記レーザ出力検出部が前記レーザモジュール毎に検出した前記第1出力信号の初期値である第1の初期値、および前記結合出力検出部が検出した前記第2出力信号の初期値である第2の初期値を記憶する記憶部と、
前記レーザモジュール毎に検出された前記第1の初期値と、各前記第1の初期値から変化した各前記第1出力信号と、前記第2の初期値と、前記第2の初期値から変化した前記第2出力信号とを用いて、前記レーザモジュールを各々制御する複数の出力補正率を設定する演算部と、
前記複数の出力補正率を用いて前記複数の駆動電源部を制御する制御部と、
を備え、
前記複数のレーザモジュールのうち前記レーザ出力の出力変化率の差が特定値以下であるレーザモジュールは同じグループに設定され、前記複数の出力補正率は、前記全レーザ出力が一定値になるように前記グループ毎に設定され、
前記演算部は、前記レーザ出力の初期値からの変化率が大きなグループほど出力補正率が小さくなるよう、前記複数の出力補正率を設定する、
ことを特徴とするレーザ装置。 - 前記記憶部は、前記複数のレーザモジュールのレーザ出力、前記駆動電源部による投入電力、および前記全レーザ出力のデータを記憶する、
ことを特徴とする請求項1に記載のレーザ装置。 - 複数のレーザモジュールを備えたレーザ装置と、
前記レーザ装置が出力するレーザ光によって被加工物を加工する加工部と、
前記加工部を制御する加工機制御部と、
を有し、
前記レーザ装置は、
前記レーザモジュールを駆動する複数の駆動電源部と、
前記レーザモジュールからのレーザ出力を検出し、検出値を第1出力信号として出力する複数のレーザ出力検出部と、
複数のレーザ出力を結合した後の全レーザ出力を検出し、検出値を第2出力信号として出力する結合出力検出部と、
前記レーザ出力検出部が前記レーザモジュール毎に検出した前記第1出力信号の初期値である第1の初期値、および前記結合出力検出部が検出した前記第2出力信号の初期値である第2の初期値を記憶する記憶部と、
前記レーザモジュール毎に検出された前記第1の初期値と、各前記第1の初期値から変化した各前記第1出力信号と、前記第2の初期値と、前記第2の初期値から変化した前記第2出力信号とを用いて、前記レーザモジュールを各々制御する複数の出力補正率を設定する演算部と、
前記複数の出力補正率を用いて前記複数の駆動電源部を制御する制御部と、
を備え、
前記複数のレーザモジュールのうち前記レーザ出力の出力変化率の差が特定値以下であるレーザモジュールは同じグループに設定され、前記複数の出力補正率は、前記全レーザ出力が一定値になるように前記グループ毎に設定され、
前記演算部は、前記レーザ出力の初期値からの変化率が大きなグループほど出力補正率が小さくなるよう、前記複数の出力補正率を設定する、
ことを特徴とするレーザ加工機。 - 複数のレーザモジュールを備えたレーザ装置の装置状態の基準を設定する第1の工程と、
前記基準を記憶部に記憶させる第2の工程と、
定期的に前記装置状態を確認する第3の工程と、
前記レーザモジュール毎に、前記基準と確認した前記装置状態とを比較する第4の工程と、
前記比較の結果に基づいて、前記レーザモジュールを各々制御する複数の出力補正率を算出する第5の工程と、
を含み、
前記レーザ装置の装置状態は、各前記レーザモジュールを駆動する駆動電源部への投入電力と各前記レーザモジュールのレーザ出力との対応関係を示す対応関係情報、前記レーザモジュール毎に検出された各レーザ出力、および前記複数のレーザモジュールからの各レーザ出力を結合した後の全レーザ出力であり、
前記基準は、初期状態の前記対応関係情報、前記レーザモジュール毎に検出された各レーザ出力の初期値、および前記全レーザ出力の初期値であり、
算出される前記複数の出力補正率は、前記装置状態に対応する、各前記レーザモジュールのレーザ出力の補正率であり、
前記複数のレーザモジュールのうち前記レーザ出力の出力変化率の差が特定値以下であるレーザモジュールは同じグループに設定され、前記複数の出力補正率は、前記全レーザ出力が一定値になるように前記グループ毎に設定され、
前記レーザ出力の初期値からの変化率が大きなグループほど出力補正率が小さくなるよう、前記複数の出力補正率が設定される、
ことを特徴とするレーザ装置の出力制御方法。 - 前記第5の工程では、
上限値を超えないよう前記複数の出力補正率が算出される、
ことを特徴とする請求項4に記載のレーザ装置の出力制御方法。 - 前記第1の工程では、各前記レーザモジュールに想定される寿命時間に基づいて設定されたタイミングで、前記装置状態の基準が設定される、
ことを特徴とする請求項4または5に記載のレーザ装置の出力制御方法。 - 前記第3の工程では、
前記レーザモジュールが起動して一定の動作をした後に前記装置状態を確認する、
ことを特徴とする請求項4から6の何れか1つに記載のレーザ装置の出力制御方法。
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