Identification of Motion Error Sources on Five-axis Machine Tools by Ball-bar Measurements (1st Report)

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  • ボールバー測定を用いた5軸制御加工機の運動誤差原因の診断（第1報）
  • ボールバー測定を用いた5軸制御加工機の運動誤差原因の診断(第1報)誤差成分の分類と改良型ボールバー装置(DBB5)の開発
  • ボールバー ソクテイ オ モチイタ 5ジク セイギョ カコウキ ノ ウンドウ ゴサ ゲンイン ノ シンダン ダイ1ポウ ゴサ セイブン ノ ブンルイ ト カイリョウガタ ボールバー ソウチ DBB5 ノ カイハツ
  • —Classification of Motion Error Components and Development of the Modified Ball Bar Device (DBB5)—
  • —誤差成分の分類と改良型ボールバー装置 (DBB5) の開発—

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The inclusion of the application of the double ball bar (DBB) measurement to the accuracy calibration of five-axis machine tools into the revision of ISO standards is currently under the discussion. This paper presents the modified DBB measurement device, referred to as “DBB5” in our study, where master balls are supported from the 45°direction to the spindle axis. It can perform all the circular tests on XY, YZ, and ZX planes without changing the setup. This paper first presents the classification of motion error components of a five-aixs machine tool into location and component errors. Experimental application examples of the DBB5 to the calibration of location and component errors assciated with rotary axes on a five-axis machine tool are then presented.

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