Tool, tool holder, and machine tool
AssigneeToshiba Kikai Kabushiki Kaisha
InventorsSakashi Adachi, Koji Katsumata
Life of this patent
Estimating the term…
Abstract
A tool attachable to a spindle of a machine tool by an automatic tool changer in the same way as an ordinary tool, capable of being driven without connecting with an external power supply etc., and able to rotate at a rotational speed different from than that of the spindle of the machine tool without supply of electric power from the outside, provided with a machining tool for machining a workpiece, a motor connected with the machining tool and rotating the machining tool, and a generator to which rotary force is transmitted from the spindle of the machine tool and generating electric power to drive the motor, the shaft of the motor being arranged in an orientation different from the axial center of the spindle.
Claims28
A tool attachable to a spindle of a machine tool comprising:
- a machining tool for machining a workpiece;
- a motor connected to said machining tool and causing said machining tool to rotate;
- and
- a generator to which rotary force is transmitted from a spindle of said machine tool and generating electric power to drive said motor;
- wherein
- a shaft of said motor is arranged in an orientation different from an axial center of said spindle.
A tool holder able to hold a machining tool for machining a workpiece and attachable to a spindle of a machine tool body, comprising:
- a tool holding part for rotatably holding said machining tool;
- a motor for rotating said tool holding part;
- and
- a generator to which rotary force is transmitted from a spindle of said machine tool and generating electric power to drive said motor;
- wherein
- a shaft of said motor is arranged in an orientation different from an axial center of said spindle.
A machine tool comprising:
- a machine tool body provided with a spindle, a driving means for driving said spindle, and at least one control axis for changing a relative position between said spindle and a workpiece;
- a control apparatus for controlling said driving means and said control axis in accordance with a machining program;
- and
- an automatic tool changer provided with a plurality of types of tools and attaching a tool to said spindle;
- said plurality of types of tools each including a machining tool for machining a workpiece, a motor connected to said machining tool and rotating said machining tool, and a generator to which rotary force is transmitted from said spindle and generating electric power to drive said motor.
A machine tool comprising:
- a generator for generating electric power by power supplied from the outside and
- an electrodischarge machining electrode for performing electrodischarge machining using the electric power generated by said generator.
An electrodischarge electrode holder comprising:
- a generator for generating electric power by power supplied from the outside and
- a holding means for exchangeably holding an electrodischarge machining electrode for electrodischarge machining using electric power generated by said generator.
A machine tool able to cut a workpiece, comprising:
- a machine tool body moving and positioning a spindle with respect to a workpiece;
- a tool provided with a generator and an electrodischarge machining electrode for electrodischarge machining using electric power generated by said generator and able to be attached to said machine tool body;
- and
- a power source for supplying power to said generator.
A tool able to be attached to a spindle of a machine tool, comprising:
- a machining tool for machining a workpiece;
- a generator for generating electric power by rotary force supplied from said spindle of the machine tool;
- a motor drive by electric power generated by said generator and rotating said machining tool;
- and
- a cooling means for discharging to the outside heat generated by the operation of said motor using part of the electric power generated by said generator.
A tool holder able to hold a machining tool for machining a workpiece and able to be attached to a spindle of a machine tool body, comprising:
- a tool holding part for rotatably holding said machining tool;
- a generator for generating electric power by rotary force supplied from said spindle of the machine tool;
- a motor drive by electric power generated by said generator and rotating said machining tool;
- and
- a cooling means for discharging to the outside heat generated by the operation of said motor using part of the electric power generated by said generator.
A machine tool comprising:
- a machine tool body provided with a spindle, a drive means for driving said spindle, and at least one control axis for changing a relative position between said spindle and said work;
- a tool provided with a machining tool for machining a workpiece, a generator for generating electric power by rotary force supplied from the spindle of said machine tool, and a motor driven by electric power generated by said generator and rotating said machining tool and able to be attached to said spindle;
- and
- a control apparatus for controlling the drive of said drive means and said control axis in accordance with a machining program;
- said tool further having a cooling means for discharging to the outside heat generated by the operation of said motor using part of the electric power generated by said generator.
A machine tool comprising:
- a machine tool body;
- a power source provided at said machine tool body and supplying power required for machining the workpiece;
- a generator for generating electric power using part of the power supplied from said power source;
- and
- an attachment for said machine tool body using power generated by said generator.
Dependencies are inferred from the claim text.