US 2003/0181134 A1 · High-precision machining system

Abstract

A rotation axis of a work spindle and a rotation axis of a spindle primary-axis portion are rotated relative to each other and feeding of a work-piece to a tool is accordingly adjusted, whereby warpage of the tool in accordance with a change in machining condition is corrected. A revolution volume of the relative rotation is compared and calculated in process based on data entered in advance, a result of measurement by a displacement sensor and information such as a machining position, and controlled in real time until the end of machining. The relative rotation is driven by an actuator such as a piezoelectric element, at a resolution even as fine as in seconds. The data entered in advance can be sequentially updated in accordance with monitoring of a processed product.

Claims19

Dependent claims

A machining system machining a work-piece by means of relative movement between a held work-piece and a tool held by a spindle primary-axis portion at a position faced with said work-piece to rotate in a predetermined manner, characterized in that:

with respect to four axes in total which are a Z-axis in the direction of depth of an internal wall of said work-piece, an X-axis perpendicular to said Z-axis and in the direction for feeding said tool, a Y-axis perpendicular to said Z-axis and said X-axis, and a work-piece C-axis parallel to said Z-axis,
said work-piece and said tool are movable relative to each other about at least two axes of said X-axis and said Z-axis,
regarding at least the two axes about which said relative movement is possible, said relative movement between said work-piece and said tool can be controlled simultaneously,
said work-piece and a rotation axis of said spindle primary-axis portion can rotate relative to each other to thereby correct a machining error created as a machining condition changes,
said relative rotation has a resolution even as fine as in seconds (angles), and
a central axis of said relative rotation does not move relative to a machining point.

3 more elements

A machining system machining a scroll blade by means of relative movement between a work-piece held by a work spindle to rotate in a predetermined manner and at least one tool held by at least one spindle primary-axis portion at a position faced with said work-piece to rotate in a predetermined manner, characterized in that:

with respect to mutually perpendicular three axes in total which are a Z-axis in the direction of depth of a vortex, an X-axis perpendicular to said Z-axis and in the direction for feeding said tool, and a Y-axis perpendicular to said Z-axis and said X-axis,
said work-piece and said tool are movable relative to each other about at least said X-axis and said Z-axis,
it is possible to simultaneously control movements about at least two axes, which are relative movement in the direction of said X-axis and rotation about a C-axis (an axis parallel to said Z-axis), an axis of said work-piece,
a rotation axis of said work spindle and a rotation axis of said spindle primary-axis portion can rotate relative to each other about a B-axis (an axis parallel to said Y-axis) to thereby correct a machining error created as a machining condition changes,
said relative rotation has a resolution even as fine as in seconds (angles), and
said B-axis, the center of said relative rotation, does not move relative to a machining point even when said work-piece and said tool move relative to each other.

3 more elements

Dependencies are inferred from the claim text.

High-precision machining system

Life of this patent

High-precision machining system

Life of this patent

Abstract

Claims19