Bending method and bending device
AssigneeAmada Company, Limited
InventorsJunichi Koyama, Kazunari Imai, Hitoshi Omata, Osamu Hayama, Hidekatsu Ikeda
Life of this patent
Estimating the term…
Abstract
In bending a workpiece, a position of the workpiece relatively pressed down by a punch is directly detected by a plurality of position detectors provided in a V-groove of a die, and a bending speed calculation section obtains a bending speed from a change in this position. If bending speeds at position of the respective position detectors differ, a uniform speed arithmetic operation section calculates a bending speed to make the bending speeds at the positions of all of the position detectors, and a driving shaft instruction section controls driving shafts to bend the workpiece at the uniform bending speed.
Claims8
A bending method, comprising:
- driving a punch to approach and separate from a die using at least two driving shafts;
- directly detecting vertical movement of a workpiece following bending using a plurality of position detectors provided along an interior of a V-groove of the die;
- and
- obtaining bending speeds of the workpiece at positions of the position detectors from the vertical movement, and controlling the driving shafts so as to make the workpiece bending speeds at the positions of the position detectors equal to one another.
A bending device comprising:
- at least two driving shafts;
- a punch and a die driven to relatively approach and separate from each other by the at least two driving shafts so as to bend a workpiece;
- a plurality of position detectors provided along an interior of a V-groove of the die;
- a workpiece bending speed calculator that calculates workpiece bending speeds from vertical movement of the workpiece detected by the position detectors;
- a uniform speed calculator that calculates a uniform speed from the workpiece bending speeds at positions of the position detectors;
- and
- a driving shaft controller that controls the respective driving shafts so that the workpiece bending speeds at the positions of the position detectors become the uniform speed calculated by the uniform speed calculator.
Dependencies are inferred from the claim text.