A rotational force transmission mechanism includes a shaft and an engagement member. The shaft is rotatable about a first axis. The shaft includes a leading end portion having a second groove and a first groove which is configured to receive a rotatable portion of a tool holder so that the shaft rotates the rotatable portion about the first axis. The engagement member is movable along the first axis between a first position and a second position and rotatable about the first axis together with the shaft. The engagement member includes an engagement portion configured to be received in the second groove. At least one of the shaft and the engagement member has an inclined surface that moves the engagement portion in a direction toward the first axis when the engagement member moves from the first position to the second position.

The present disclosure relates to a turret tool post for a machine tool, the turret tool post including: a tool post body; a turret installed on the tool post body and configured to receive a plurality of tools; a drive unit installed on the tool post body and configured to provide rotational power to the turret; a rotary unit installed on a part of the turret so as to be rotated together with the turret and coupled to an optional unit; and a fixing unit installed on the tool post body and configured to be clamped with or unclamped from the rotary unit by a rotation of the rotary unit in order to allow or cut off a supply of pressure required for an operation of the optional unit.

The present disclosure relates to a turret tool post for a machine tool, the turret tool post including: a tool post body; a turret installed on the tool post body and configured to receive a plurality of tools; a drive unit installed on the tool post body and configured to provide rotational power to the turret; a rotary unit installed on a part of the turret so as to be rotated together with the turret and coupled to an optional unit; and a fixing unit installed on the tool post body and configured to be clamped with or unclamped from the rotary unit by a rotation of the rotary unit in order to allow or cut off a supply of pressure required for an operation of the optional unit.

A technology capable of improving machining performance of a lathe is provided. A first attaching position and a second attaching position are adjacent to each other in a tool unit attaching direction perpendicular to a spindle axis direction. A second tool unit attached to the second attaching position is of a shape avoiding an area that a spindle possibly occupies relatively with respect to a first tool unit working on the workpiece. When a rotary tool unit is attached to one of the first attaching position and the second attaching position, a machining point of the second tool unit working on the workpiece is deviated to the side of the spindle in the spindle axis direction from the rotational center of the rotary tool unit across the turret surface.

A technology capable of downsizing the lathe is provided. The lathe comprises a spindle which rotates a workpiece on a spindle axis, a turret head, and a tool unit switching driving unit. The turret head has a plurality of turret surfaces to which a tool unit is radially attached around an indexing axis. To at least part of the turret surfaces, the tool unit is attached in a plurality of attaching positions provided in an indexing axis direction along the indexing axis. The tool unit switching driving unit rotates the turret head on the indexing axis and moves the turret head in the indexing axis direction to switch the tool units for use to machine the workpiece.

Systems and methods for lathe and tooling calibration are disclosed. A sensor is utilized to measure dimensions and operational parameters of one or more components of a lathe, such as a turret, tool stations, and/or a spindle. Tool measurements are received and analyzed along with the measurements from the sensor. The dimensions and operational parameters may be utilized to calibrate movement parameters of one or more components of the lathe. Once calibrated, the lathe may be utilized to tool one or more objects.

Systems and methods for lathe and tooling calibration are disclosed. A sensor is utilized to measure dimensions and operational parameters of one or more components of a lathe, such as a turret, tool stations, and/or a spindle. Tool measurements are received and analyzed along with the measurements from the sensor. The dimensions and operational parameters may be utilized to calibrate movement parameters of one or more components of the lathe. Once calibrated, the lathe may be utilized to tool one or more objects.

In one aspect, a method of preparing a machine tool to machine a workpiece. The machine tool includes an artifact in the machine tool and a probe mounted to a head of the machine tool. The method includes determining a tool offset value for a tool by moving the probe and the tool relative to one another to bring the probe and the tool into contact with one another. Prior to determining the tool offset value, the method includes calibrating the probe by moving the probe and the artifact relative to one another to bring the probe and the artifact into contact with one another.

The present disclosure relates to a turret tool post for a machine tool, the turret tool post including: a tool post body; a turret installed on the tool post body and configured to receive a plurality of tools; a drive unit installed on the tool post body and configured to provide rotational power to the turret; a rotary unit installed on a part of the turret so as to be rotated together with the turret and coupled to an optional unit; and a fixing unit installed on the tool post body and configured to be clamped with or unclamped from the rotary unit by a rotation of the rotary unit in order to allow or cut off a supply of pressure required for an operation of the optional unit.

The present disclosure relates to a turret tool post for a machine tool, the turret tool post including: a tool post body; a turret installed on the tool post body and configured to receive a plurality of tools; a drive unit installed on the tool post body and configured to provide rotational power to the turret; a rotary unit installed on a part of the turret so as to be rotated together with the turret and coupled to an optional unit; and a fixing unit installed on the tool post body and configured to be clamped with or unclamped from the rotary unit by a rotation of the rotary unit in order to allow or cut off a supply of pressure required for an operation of the optional unit.