JPS6452604U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の回転切削装置の主軸の内部を
偏心軸が回転移動するときの状態を示す概略的な
作用説明図。第２図は本考案の原理を説明するた
めの図。第３図は本考案実施例回転切削装置の縦
断面図。第４図〜第６図はその主軸の内部を偏心
軸が回転移動するときの状態を示す第３図のＣ―
Ｃ断面図。第７図はその基台をスライドさせたと
きのワークの加工状況を示す断面図。第８図はそ
の工具の側面図。第９図は従来の回転切削装置の
偏心軸が主軸に対して偏心して回転移動するとき
の状態を示す概略的な作用説明図。 １０：主軸、１１：偏心軸、１２：刃先軸、１
４：工具、１７ａ，１７ｂ：刃具、１９：回転駆
動モータ（回転駆動手段）、２１：サーボモータ
（調整回転手段）。 FIG. 1 is a schematic operational explanatory view showing the state when the eccentric shaft rotates inside the main shaft of the rotary cutting device of the present invention. FIG. 2 is a diagram for explaining the principle of the present invention. FIG. 3 is a longitudinal sectional view of a rotary cutting device according to an embodiment of the present invention. Figures 4 to 6 show the state in which the eccentric shaft rotates inside its main shaft.
C sectional view. FIG. 7 is a sectional view showing the machining status of the workpiece when the base is slid. FIG. 8 is a side view of the tool. FIG. 9 is a schematic operational explanatory diagram showing a state in which the eccentric shaft of a conventional rotary cutting device rotates eccentrically with respect to the main shaft. 10: main shaft, 11: eccentric shaft, 12: cutting edge shaft, 1
4: Tool, 17a, 17b: Cutting tool, 19: Rotation drive motor (rotation drive means), 21: Servo motor (adjustment rotation means).

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 主軸と、この主軸の内部に設けられかつ主軸の
軸心に対して偏心した位置に支承された偏心軸と
、この偏心軸の軸心に対してこの偏心軸の上記主
軸に対する偏心量と同じ量だけ偏心した位置に支
承されかつ端部に工具が取付けられる刃先軸と、
上記主軸と上記偏心軸と上記刃先軸とを一体に回
転させる回転駆動手段と、上記偏心軸を上記主軸
に対して相対的に正回転又は逆回転させる調整回
転手段とを備え、上記刃先軸は上記偏心軸の回転
に従動して上記偏心軸と同一方向に回転し、その
回転量が上記偏心軸の回転量の２分の１になるよ
うに構成され、かつ上記工具は２つの刃具を備え
、これらの刃具の刃先は上記工具が上記刃先軸に
取付けられた状態で上記刃先軸の軸心を中心とし
て点対称に上記工具に設けられたことを特徴とす
る加工径調整装置付回転切削装置。 A main shaft, an eccentric shaft provided inside the main shaft and supported at a position eccentric to the axial center of the main shaft, and an amount of eccentricity equal to the eccentricity of this eccentric shaft with respect to the main shaft with respect to the axial center of the eccentric shaft. a cutting edge shaft supported at an eccentric position and having a tool attached to its end;
A rotation driving means for rotating the main shaft, the eccentric shaft, and the cutting edge shaft together, and an adjusting rotation means for rotating the eccentric shaft forward or backward relative to the main shaft, and the cutting edge shaft is The tool is configured to follow the rotation of the eccentric shaft and rotate in the same direction as the eccentric shaft, and the amount of rotation is one half of the amount of rotation of the eccentric shaft, and the tool includes two cutting tools. , a rotary cutting device with a machining diameter adjusting device, characterized in that the cutting edges of these cutting tools are provided on the tool in point symmetry with respect to the axis of the cutting edge shaft with the tool being attached to the cutting edge shaft. .