Machine tool

摘要

A set means for setting a workpiece (11) is provided behind a main shaft (4), the front end of which is provided with a chuck (8) that opens and closes freely, and is disposed so as to support the workpiece (11) with the chuck central axis line (C1) of the chuck (8) and the workpiece central axis line (C2) of the workpiece (11) positioned on a single line. The orientation of a workpiece (11)-holding means (53) of a conveyance means (56) for conveying the workpiece (11) between the set means (41) and the main shaft (4) is configured to be maintained when transferring the workpiece (11) between the holding means and the set means (41) and when transferring between the holding means and the chuck (8).

主权项

1. A machine tool comprising:
a main shaft (4) including a chuck (8) capable of opening and closing on a front end; and a conveyance means (56) for conveying the workpiece (11) with said main shaft (4), wherein the machine tool is configured so that the conveyance means (56) includes a holding means (53) for holding the workpiece (11) and the workpiece (11) is transferred between said chuck (8) and said holding means (53) by positioning a chuck central axis line (C1) of said chuck (8) and a workpiece central axis line (C2) of said workpiece (11) on a single line in front of said main shaft (4), said main shaft (4) is provided along an axis line direction so as to be capable of moving back and forth, a support (12) that supports a tool (15) for machining a workpiece so as to be capable of moving is provided in front of said main shaft (4), said tool (15) is disposed in front of the support (12), an area in front of said support (12) is set as a machining area (A1) of the workpiece (11), said support (12) is provided with an insertion part (14) into which said main shaft (4) is inserted, and a range of movement of said main shaft (4) is delimited from a position where said main shaft (4) is inserted into said insertion part (14) and said workpiece (11) is disposed within said machining area (A1) to a position where a space (16) for transferring the workpiece (11) between said holding means (53) and said chuck (8) is formed behind said support (12).