JP6526370B1 - 数値制御装置および付加製造装置の制御方法 - Google Patents
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Abstract
Description
図1は、本発明の実施の形態1にかかるNC装置1によって制御される付加製造装置100を示す図である。付加製造装置100は、ビームの照射によって溶融させた材料を被加工物へ付加する付加加工によって造形物を製造する工作機械である。実施の形態1において、ビームはレーザビームであって、材料は金属材料のワイヤ5であるものとする。
Ts=(Fc/As)+τs ・・・(1)
Tw=(Vc/Aw)+τw ・・・(2)
Sr1=Fc×{Ts−(Fc/2As)} ・・・(3)
Sr1=Fc×{Tw−(Fc/2As)} ・・・(4)
Sw=Vc×{Ts−(Vc/2Aw)} ・・・(5)
Sw=Vc×{Tw−(Vc/2Aw)} ・・・(6)
図18は、本発明の実施の形態2にかかるNC装置70の機能構成を示す図である。NC装置70は、加工ヘッド10の移動が可能な領域を抽出する領域抽出部71を有し、領域抽出部71によって抽出された領域内に第1の移動区間と第2の移動区間とを設定する。NC装置70は、領域抽出部71が設けられている以外は、実施の形態1にかかるNC装置1と同様の構成を有する。NC装置70の機能は、実施の形態1にかかるNC装置1と同様に、ハードウェア構成を用いて実現される。実施の形態2では、上記の実施の形態1と同一の構成要素には同一の符号を付し、実施の形態1とは異なる構成について主に説明する。
Claims (12)
- ビームを出射する加工ヘッドを有し前記ビームの照射によって溶融させた材料を被加工物へ付加して造形物を製造する付加製造装置を加工プログラムに従って制御する数値制御装置であって、
前記加工プログラムを基に、前記被加工物に対する前記加工ヘッドの移動速度の推移と、前記ビームの照射位置へ供給される材料の供給量の推移とを解析するプログラム解析部と、
前記プログラム解析部による解析結果に基づいて、前記被加工物への材料の付加が開始される第1の位置までの区間であって前記加工ヘッドを加速しながら移動させる第1の移動区間の長さである第1の距離を算出する移動距離算出部と、
前記加工ヘッドが前記第1の移動区間を移動する間に、時間当たりにおける材料の供給量をゼロから加工条件にしたがった指令値にまで増加させる供給指令を生成する条件指令生成部と、
を備えることを特徴とする数値制御装置。 - 前記条件指令生成部は、前記加工ヘッドが前記第1の位置に到達したときに前記ビームの出力を開始させる出力指令を生成することを特徴とする請求項1に記載の数値制御装置。
- 前記条件指令生成部は、前記第1の移動区間において前記付加製造装置のうち前記材料の供給のための駆動部が動作する方向を第1の方向として、前記第1の移動区間の始点から前記加工ヘッドが移動を開始するよりも前に、前記駆動部を前記第1の方向とは逆の第2の方向へ動作させる引き戻し動作のための指令を生成することを特徴とする請求項1または2に記載の数値制御装置。
- 前記加工ヘッドを移動させる移動経路から、前記第1の位置が始点であってかつ前記第1の位置から継続された材料の付加が停止される第2の位置が終点である部分経路を抽出することによって、前記移動経路から分割された前記部分経路を生成する部分経路生成部と、
前記第1の距離を有する前記第1の移動区間を前記第1の位置における前記部分経路の接線方向へ設定する移動区間設定部と、
を備えることを特徴とする請求項1から3のいずれか1つに記載の数値制御装置。 - 前記加工ヘッドの移動が可能な領域を抽出する領域抽出部を備え、
前記移動区間設定部は、前記領域抽出部によって抽出された領域内に前記第1の移動区間を設定することを特徴とする請求項4に記載の数値制御装置。 - ビームを出射する加工ヘッドを有し前記ビームの照射によって溶融させた材料を被加工物へ付加して造形物を製造する付加製造装置を加工プログラムに従って制御する数値制御装置であって、
前記加工プログラムを基に、前記被加工物に対する前記加工ヘッドの移動速度の推移と、前記ビームの照射位置へ供給される材料の供給量の推移とを解析するプログラム解析部と、
前記プログラム解析部による解析結果に基づいて、前記被加工物への材料の付加が停止される第2の位置からの区間であって前記加工ヘッドを減速しながら移動させる第2の移動区間の長さである第2の距離を算出する移動距離算出部と、
前記加工ヘッドが前記第2の移動区間を移動する間に、時間当たりにおける材料の供給量を加工条件にしたがった指令値からゼロにまで減少させる供給指令を生成する条件指令生成部と、
を備えることを特徴とする数値制御装置。 - 前記条件指令生成部は、前記加工ヘッドが前記第2の位置に到達したときに前記ビームの出力を停止させる出力指令を生成することを特徴とする請求項6に記載の数値制御装置。
- 前記条件指令生成部は、前記第2の移動区間において前記付加製造装置のうち前記材料の供給のための駆動部が動作する方向を第1の方向として、前記第2の移動区間の終点にて前記加工ヘッドが移動を停止した後に、前記駆動部を前記第1の方向とは逆の第2の方向へ動作させる引き戻し動作のための指令を生成することを特徴とする請求項6または7に記載の数値制御装置。
- 前記加工ヘッドを移動させる移動経路から、前記被加工物への材料の付加が開始される第1の位置が始点であってかつ前記第2の位置が終点である部分経路を抽出することによって、前記移動経路から分割された前記部分経路を生成する部分経路生成部と、
前記第2の距離を有する前記第2の移動区間を前記第2の位置における前記部分経路の接線方向へ設定する移動区間設定部と、
を備えることを特徴とする請求項6から8のいずれか1つに記載の数値制御装置。 - 前記加工ヘッドの移動が可能な領域を抽出する領域抽出部を備え、
前記移動区間設定部は、前記領域抽出部によって抽出された領域内に前記第2の移動区間を設定することを特徴とする請求項9に記載の数値制御装置。 - ビームを出射する加工ヘッドを有し前記ビームの照射によって溶融させた材料を被加工物へ付加して造形物を製造する付加製造装置を制御する方法であって、
加工プログラムを基に、前記被加工物に対する前記加工ヘッドの移動速度の推移と、前記ビームの照射位置へ供給される材料の供給量の推移とを解析する解析工程と、
前記解析工程における解析結果に基づいて、前記被加工物への材料の付加が開始される第1の位置までの区間であって前記加工ヘッドを加速しながら移動させる第1の移動区間の長さである第1の距離を算出する算出工程と、
前記加工ヘッドが前記第1の移動区間を移動する間に、時間当たりにおける材料の供給量をゼロから加工条件にしたがった指令値にまで増加させる供給指令を生成する指令生成工程と、
を含むことを特徴とする付加製造装置の制御方法。 - ビームを出射する加工ヘッドを有し前記ビームの照射によって溶融させた材料を被加工物へ付加して造形物を製造する付加製造装置を制御する方法であって、
加工プログラムを基に、前記被加工物に対する前記加工ヘッドの移動速度の推移と、前記ビームの照射位置へ供給される材料の供給量の推移とを解析する解析工程と、
前記解析工程における解析結果に基づいて、前記被加工物への材料の付加が停止される第2の位置からの区間であって前記加工ヘッドを減速しながら移動させる第2の移動区間の長さである第2の距離を算出する算出工程と、
前記加工ヘッドが前記第2の移動区間を移動する間に、時間当たりにおける材料の供給量を加工条件にしたがった指令値からゼロにまで減少させる供給指令を生成する指令生成工程と、
を含むことを特徴とする付加製造装置の制御方法。
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