MACHINING DEVICE AND MACHINING METHOD

To form a machining mark on an arcuate surface with an arcuate cross section toward the center of curvature of the arcuate surface.SOLUTION: A machining device includes: a chuck table 10 that fixes a workpiece 200; a machining unit that forms a cut groove in the workpiece 200 fixed to the chuck tabl...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TAKAHARA TAKUSHI, PATRICK CHRISTOPHER, CHRIS MIHAI, KURIMURA SHIGEYA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GRINDING MACHINE TOOLS MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS POLISHING TRANSPORTING
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Beschreibung
Zusammenfassung:	To form a machining mark on an arcuate surface with an arcuate cross section toward the center of curvature of the arcuate surface.SOLUTION: A machining device includes: a chuck table 10 that fixes a workpiece 200; a machining unit that forms a cut groove in the workpiece 200 fixed to the chuck table 10; a machining-feed unit that moves the chuck table 10 in an X direction; an indexing-feed unit that moves the machining unit in a Y direction; a cutting-feed unit that cutting-feeds the machining unit in a Z direction; and a control unit. The chuck table 10 has a fixing portion 12 to which the workpiece 200 with the exposed arcuate surface 201 is fixed so as to be rotatable about an axis 131 in the X direction as a rotational axis. After the cut groove is formed in the arcuate surface 201 of the workpiece 200 in which a ridge of the arcuate surface 201 is fixed to the fixing portion 12 along the X direction, the fixing portion 12 is rotated.SELECTED DRAWING: Figure 3 【課題】断面円弧状の円弧面に円弧面の曲率の中心に向かって加工痕を形成することができること。【解決手段】加工装置は、被加工物２００を固定するチャックテーブル１０と、チャックテーブル１０に固定された被加工物２００に切削溝を形成する加工ユニットと、Ｘ方向にチャックテーブル１０を移動させる加工送りユニットと、Ｙ方向に加工ユニットを移動させる割り出し送りユニットと、加工ユニットをＺ方向に切り込み送りさせる切り込み送りユニットと、制御ユニットと、を備える。チャックテーブル１０は、円弧面２０１を露出した被加工物２００が、Ｘ方向の軸心１３１を回転軸として回転可能に固定される固定部１２を有し、制御ユニットは、円弧面２０１の尾根がＸ方向に沿って固定部１２に固定された被加工物２００の円弧面２０１に、切削溝を形成した後、固定部１２を回転させる。【選択図】図３