| 摘要 |
An internal abrasive machine for inner surfaces of annular work pieces, and comprising a rotated driven spindle (16) carrying a tool (18), chucking equipment (14) for a work piece (15) to be machined, and feeding means (10, 11) for relative movement between work piece and tool, the motor (17) being arranged in a recess (7a) in a shaft (7) provided in a tubular cylindrical housing (3), having a longitudinal cylindrical inner space, having its longitudinal axis offset from the longitudinal housing axis, said shaft being angularly moveable in said space, the housing (3) being enclosed by a rotatably driven outer casing (5) firmly connected to a lid member (19), the chucking equipment (14) and the lip member (19) being arranged to retain a work piece (15) to be treated, and to cause this to rotate together with the lid member (19) about its axis, said shaft (7) when moved in said space displacing the tool (18) in a path allowing the tool surface to approach and contact the inner periphery of a chucked work piece.
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