JP7427581B2 - ロボット溶接における位置追跡を伴う、スマートトーチを使用する方法及びシステム - Google Patents
ロボット溶接における位置追跡を伴う、スマートトーチを使用する方法及びシステム Download PDFInfo
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Description
12 フレーム
14 ロボット
16 溶接テーブル
18 溶接テーブル
22 溶接被加工物
24 溶接被加工物
26 フロントアクセスドア
28 リアアクセスドア
32 ウィンドウ
40 制御パネル
42 制御エンクロージャ
60 溶接トーチ/ガン
62 コンジット
64 溶接電極ワイヤ
72 電源
74 プラットフォーム
76 ロボットコントローラ
80 地点
82 チャネル
200 溶接システム
210 溶接コントローラ
220 プロセッサ
230 メモリ
240 溶接ルーチン
250 溶接ライン
260 溶接トーチ
270 絶対位置センサ
280 相対位置センサ
300 例示用のシステム
310 溶接経路
320 基準系
360 トーチ
400 システム
460 溶接トーチ
500 溶接システム
510 溶接経路
560 トーチ
570 位置センサ
580 位置センサ
590 コントローラ
600 溶接経路
605 溶接経路
610 溶接経路
620 軸
630 位置に基づいた補正
700 方法
710 ステップ
720 ステップ
730 ステップ
740 ステップ
750 ステップ
760 ステップ
770 ステップ
780 ステップ
A 溶接アーク
E 電極
W 被加工物
Claims (14)
- 自動電気アーク溶接の方法であって、
相対位置センサを使用することにより、実際の溶接経路に対する溶接トーチの相対位置を判定するステップと、
絶対位置センサを使用することにより、前記溶接トーチの絶対位置を判定するステップと、
前記実際の溶接経路が、計画されている溶接経路と異なっている際に、前記実際の溶接経路に対する前記溶接トーチの前記相対位置及び前記溶接トーチの前記絶対位置に基づいて補正ベクトルを算出するステップと、
前記計画されている溶接経路及び前記補正ベクトルに従って前記溶接トーチを運動させるステップと、
を有する方法。 - 前記実際の溶接経路に対する前記溶接トーチの前記相対位置に基づいて、溶接トーチ位置の補正が必要とされているかどうかを判定するステップを更に有し、且つ/又は、
前記補正ベクトルを実装する時点を判定するステップを更に有する請求項1に記載の方法。 - 前記計画されている溶接経路及び前記補正ベクトルに基づいて、調節済みの溶接経路を算出するステップを更に有し、且つ、前記計画されている溶接経路及び前記補正ベクトルに従って前記溶接トーチを運動させるステップは、前記調節済みの溶接経路に従って前記溶接トーチを運動させるステップを有する請求項1又は2に記載の方法。
- 前記計画されている溶接経路及び初期ベクトルに従って前記溶接トーチを運動させるステップを更に有し、前記補正ベクトルを算出するステップは、初期ベクトルに適用される調節ベクトルを算出するステップを有する請求項1乃至3のいずれか1項に記載の方法。
- 前記実際の溶接経路又は前記計画されている溶接経路のうちの少なくとも1つは、一連の位置を有する請求項1乃至4のいずれか1項に記載の方法。
- 前記補正ベクトルを第1補正ベクトルとして保存するステップであって、前記補正ベクトルは1回目に算出されたものである、ステップと、
前記1回目とは異なる2回目に、前記相対位置センサを用いて、前記実際の溶接経路に対する前記溶接トーチの第2相対位置を判定するステップと、
前記絶対位置センサを用いて前記溶接トーチの第2絶対位置を判定するステップと、
前記実際の溶接経路が前記計画されている溶接経路と異なる場合に、前記実際の溶接経路に対する前記溶接トーチの第2相対位置及び前記溶接トーチの第2絶対位置に基づいて第2補正ベクトルを算出するステップと、
を更に有する請求項1乃至5のいずれか1項に記載の方法。 - 前記相対位置センサは、電流センサを有し、且つ/又は、
前記絶対位置センサは、少なくとも1つの加速度計を有する請求項1乃至6のいずれか1項に記載の方法。 - 前記補正ベクトルの第1成分は、第1アルゴリズムに従って算出され、前記補正ベクトルの第2成分は、第2アルゴリズムに従って算出され、且つ、前記第1アルゴリズムは、前記第2アルゴリズムとは異なっている請求項1乃至7のいずれか1項に記載の方法。
- 溶接システムであって、
溶接トーチを有する溶接装置と、
実際の溶接経路に対する前記溶接トーチの相対位置を検知する相対位置センサと、
前記溶接トーチの絶対位置を検知する絶対位置センサと、
計画されている溶接経路及び補正ベクトルに基づいて前記溶接トーチの運動を制御する溶接コントローラと、
を有し、
前記溶接コントローラは、前記実際の溶接経路が前記計画されている溶接経路と異なっている際に、前記実際の溶接経路に対する前記溶接トーチの前記相対位置及び前記溶接トーチの前記絶対位置に基づいて前記補正ベクトルを算出するロジックを有する、システム。 - 前記計画されている溶接経路を保存するメモリを更に有する請求項9に記載のシステム。
- 前記相対位置センサは、電流センサを有し、且つ/又は、
前記絶対位置センサは、少なくとも1つの加速度計を有し、前記相対位置センサは、溶接経路追跡システムと関連付けられている請求項9又は10に記載のシステム。 - 前記溶接トーチを運動させるロボットと、
前記ロボットの運動を制御するロボットコントローラと、
を更に有し、
前記ロボットコントローラは、前記補正ベクトルに基づいて前記ロボットの運動を調節している請求項9乃至11のいずれか1項に記載のシステム。 - 前記溶接トーチは、前記実際の溶接経路に沿って、少なくとも50インチ(127センチ)/分において運動している請求項9乃至12のいずれか1項に記載のシステム。
- 溶接システムであって、
溶接トーチによって溶接する手段と、
計画されている溶接経路及び補正ベクトルに従って前記溶接トーチを運動させる手段と、
実際の溶接経路に対する溶接トーチの相対位置を判定する、且つ、前記溶接トーチの絶対位置を判定する、手段と、
前記実際の溶接経路に対する前記溶接トーチの前記相対位置及び前記溶接トーチの前記絶対位置に基づいて前記溶接トーチの前記運動に対する補正を算出する手段と、
を有するシステム。
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