GRINDING MACHINE

PROBLEM TO BE SOLVED: To provide a grinding machine utilizing a tailstock whose structure can be simplified.SOLUTION: A tailstock 30 comprises: a first body 110 which is mounted with a center 100; and a second body 120 which can move in a rotation axis-line direction of a workpiece W with respect to...

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Bibliographische Detailangaben
Hauptverfasser: KATO IKUYA, KIYOTA MASARU
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a grinding machine utilizing a tailstock whose structure can be simplified.SOLUTION: A tailstock 30 comprises: a first body 110 which is mounted with a center 100; and a second body 120 which can move in a rotation axis-line direction of a workpiece W with respect to the first body 110, can move in the rotation axis-line direction of the workpiece W with respect to a head 10, and is driven by a tailstock driving device 73, so that the second body 120 pressurizes the first body 110 in a direction in which the body is made approach the workpiece W. The first body 110 comprises: a first body base 111 to which a first slider 32a is fixed; and a first body extending part 112 which is positioned away from the rotation axis-line direction of the workpiece W with respect to the first slider 32a, and which extends upward from an end surface in a rotation axis-line direction of the workpiece W, of the first body base 111, and supports a center 100, at a position upper than an upper surface of the first body base 111.SELECTED DRAWING: Figure 7 【課題】構造を簡素化できる心押台を用いた研削盤を提供すること。【解決手段】心押台30は、センタ100が取り付けられる第一本体110と、第一本体110に対して工作物Wの回転軸線方向へ相対移動可能であり、ベッド10に対して工作物Wの回転軸線方向へ移動可能であり、且つ、心押台駆動装置73によって駆動され、第一本体110を工作物Wに近づける方向へ押圧する第二本体120と、を備える。第一本体110は、第一スライダ32aが固定される第一本体ベース111と、第一スライダ32aに対して工作物Wの回転軸線方向から外れた位置にあり、第一本体ベース111の工作物Wの回転軸線方向の端面から上方へ延在し、第一本体ベース111の上面よりも上方にてセンタ100を支持する第一本体延在部112と、を備える。【選択図】図7