| 摘要 |
Device for clamping of a workpiece in accurately specific position in the working space of a machine tool is proposed. Device contains chuck (1) adapted to be fastened in the working space of the machine tool, and carrier (25) of the workpiece adapted to be fastened on the mentioned chuck (1) and to be clamped on it. First means of positioning (22, 23) on the chuck and the second means of positioning (29, 30) on the carrier (25) of the workpiece interact in pairs acting as guiding elements and determining thus the position of carrier (25) of workpiece along three mutually perpendicular coordinate axes (X, Y, Z) and on the angle relative to the chuck (1). Clamping device (12, 14, 18, 28) with its force of clamping fix the carrier (25) of workpiece on the chuck in the position determined by the positioning means. For guaranteeing the increased durability according to the relation of the tilting moments and torques, which can appear during working, the clamping device (12, 14, 18, 28) contains many clamping organs (18, 28), the lines of the force of clamping-action of which lie practically on cylindrical surface (MF) parallel with the axis Z, or near this cylindrical surface, which intersects the first (22, 23) and the second (29, 30) means of positioning. |
