Machine tool and method of controlling machine tool
AssigneeFanuc Corporation
InventorAkihiko Nagao
Life of this patent
Estimating the term…
Abstract
A machine tool includes: two Y-axis sliders arranged parallel to each other on the bed for allowing the saddle to move in the first direction; two X-axis sliders arranged parallel to each other on the saddle to move the table; and a controller. The controller, before controlling a first motor to move the saddle, controls a second motor to move the table so that the centroid position of a moving object assembly including the table and a loaded object placed on the table is positioned in a predetermined range including the center position between the two Y-axis sliders.
Claims10
A machine tool including a saddle that moves relatively to a bed in a first direction and a table that moves relatively to the saddle in a second direction orthogonal to the first direction, comprising:
- two first sliders arranged parallel to each other on the bed and configured to allow the saddle to move in the first direction;
- a first motor configured to move the saddle;
- two second sliders arranged parallel to each other on the saddle and configured to allow the table to move in the second direction;
- a second motor configured to move the table;
- and
- a controller configured to control the first motor and the second motor,
- wherein the controller, before controlling the first motor to move the saddle, is configured to control the second motor to move the table so that a centroid position of a moving object assembly including the table and a loaded object placed on the table is positioned in a predetermined range including a center position between the two first sliders.
A control method for a machine tool including a saddle that moves relatively to a bed in a first direction and a table that moves relatively to the saddle in a second direction orthogonal to the first direction, wherein the machine tool comprises:
- two first sliders arranged parallel to each other on the bed and configured to allow the saddle to move in the first direction;
- a first motor configured to move the saddle;
- two second sliders arranged parallel to each other on the saddle and configured to allow the table to move in the second direction;
- and
- a second motor configured to move the table,
- the control method comprising:
- a table control step of controlling the second motor to move the table before moving the saddle so that a centroid position of a moving object assembly including the table and a loaded object placed on the table is positioned in a predetermined range including a center position between the two first sliders;
- and
- a saddle control step of controlling the first motor to move the saddle.
Dependencies are inferred from the claim text.