A machine tool for cutting a workpiece having an inclined surface includes a main spindle that rotates while holding the workpiece, a tool post that holds a cutting tool to cut the inclined surface of the workpiece, a mover that relatively moves the workpiece and the cutting tool in a direction including at least a Y-direction perpendicular to both a Z-direction parallel to an axis of the main spindle and an X-direction that is perpendicular to the Z-direction and determines the amount of cutting of the workpiece. The mover includes a Y-direction guide disposed on the tool post, the Y-direction guide guiding movement of the cutting tool in the Y-direction, and the Y-direction guide has a guide surface along a surface perpendicular to a direction of a thrust force that occurs when cutting the inclined surface using the cutting tool.

A machine tool for cutting a workpiece having an inclined surface includes a main spindle that rotates while holding the workpiece, a tool post that holds a cutting tool to cut the inclined surface of the workpiece, a mover that relatively moves the workpiece and the cutting tool in a direction including at least a Y-direction perpendicular to both a Z-direction parallel to an axis of the main spindle and an X-direction that is perpendicular to the Z-direction and determines the amount of cutting of the workpiece. The mover includes a Y-direction guide disposed on the tool post, the Y-direction guide guiding movement of the cutting tool in the Y-direction, and the Y-direction guide has a guide surface along a surface perpendicular to a direction of a thrust force that occurs when cutting the inclined surface using the cutting tool.

A tool-changing carrier, that is to say a tool turret (1) with a rotary turret unit having at least two tool mounts (9) and arranged such that it can be rotated relative to a basic turret body (12), has radiation-transmission means which are provided for passing electromagnetic radiation through the tool-changing carrier or along the same. A tool system comprises such a tool-changing carrier and at least two tool heads (3, 5, 15, 17, 18, 27, 34, 40, 43), intended for fixing on the tool mounts (9), wherein at least one tool head is an optical tool head (3, 15, 17, 18) which is suitable for exposing a workpiece (11) to electromagnetic radiation and has a tool optics unit (23) for deflecting and/or forming the electromagnetic radiation.

A machine tool includes a main spindle that rotates while holding a workpiece, a mover that moves a cutting tool including a linear cutting blade that cuts the workpiece, with respect to the workpiece in a moving direction including at least a Z-direction parallel or substantially parallel with the axis of the main spindle and a Y-direction perpendicular or substantially perpendicular to both the Z-direction and an X-direction determining the amount of cutting of the workpiece, a holder that holds the cutting tool in a state in which the direction of the linear cutting blade is inclined with respect to the Z-direction by a predetermined angle when seen from the X-direction, and an angle adjuster that changes the edge angle.

A first driving force transmission part is disposed between an attachment part turning transmission shaft and a tool attachment part. The first driving force transmission part transmits rotary driving force from a side of the attachment part turning transmission shaft to the side of the first turning driving force transmission shaft, and includes a groove, a tenon shaped protrusion, and protrusions. The groove is formed on a tip of a slide shaft of the attachment part turning transmission shaft. The tenon shaped protrusion is formed in the first turning driving force transmission shaft and detachably engages with the groove. The protrusions once releases an engaging posture by pressing the groove that is biased to the engaging posture in an disengaging state when the tool is in the middle of the movement to a predetermined position.

A first driving force transmission part is disposed between an attachment part turning transmission shaft and a tool attachment part. The first driving force transmission part transmits rotary driving force from a side of the attachment part turning transmission shaft to the side of the first turning driving force transmission shaft, and includes a groove, a tenon shaped protrusion, and protrusions. The groove is formed on a tip of a slide shaft of the attachment part turning transmission shaft. The tenon shaped protrusion is formed in the first turning driving force transmission shaft and detachably engages with the groove. The protrusions once releases an engaging posture by pressing the groove that is biased to the engaging posture in an disengaging state when the tool is in the middle of the movement to a predetermined position.

In order to provide a tool changer that can detect an entry of a foreign substance into a turret mechanism portion or wear of a turret mechanism part, a tool changer of the present invention includes a reference phase false detection sensing portion that monitors load variations which occur in a turret drive source and detects an entry of a foreign substance into the turret mechanism portion based on a difference between the load variations and a reference load used as a reference. Moreover, the reference phase false detection sensing portion can also detect the progress of wear of the turret mechanism part based on the integral of the absolute value of a difference between the load variations which occur in the turret drive source and the reference load used as a reference.

A first driving force transmission part is disposed between an attachment part turning transmission shaft and a tool attachment part. The first driving force transmission part transmits rotary driving force from a side of the attachment part turning transmission shaft to the side of the first turning driving force transmission shaft, and includes a groove, a tenon shaped protrusion, and protrusions. The groove is formed on a tip of a slide shaft of the attachment part turning transmission shaft. The tenon shaped protrusion is formed in the first turning driving force transmission shaft and detachably engages with the groove. The protrusions once releases an engaging posture by pressing the groove that is biased to the engaging posture in an disengaging state when the tool is in the middle of the movement to a predetermined position.

A machine tool includes: a lower tool rest on which a plurality of tools are mounted; a motor provided at the lower tool rest, for rotating a rotating tool when the rotating tool is mounted on the lower tool rest; and a tool holder attached to the lower tool rest, for detachably holding the tool. The tool holder has a clamping mechanism portion operating between a clamping state of clamping the tool and an unclamping state of unclamping the tool, as a result of transmission of motive power generated at the motor. With such a configuration, the clamping mechanism portion for automatically clamping and unclamping the tool held in the tool holder on the tool rest is provided with a simple configuration.

The present invention relates to a machine tool including a ram spindle and a tool holder, and provides a machine tool comprising: a tool holder including at least two inserts; and a ram spindle capable of fixing the tool holder in a clamped state or rotating the tool holder in order to change the position of the insert, such that the position of the insert can be quickly changed, thereby enabling an improvement in productivity and precision and a reduction in product costs.