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US 2004/0055348 A1Published application
Bending device and bending method
AssigneeAmada Company, Limited
InventorHideaki Takahashi
Life of this patent
Estimating the term…
Abstract
A moving speed of one of tables 11 during the bending process in an approaching direction is controlled to be a bending process optimal speed which is determined by maximum machine speed inherent in the table 11, a coefficient of a material of a workpiece W, a coefficient of a thickness of the workpiece W, a coefficient of a product shape, and coefficients of dies P and D.
Claims14
A bending device, comprising:
- an input section through which workpiece data including a plate thickness of a workpiece, product data including a length of a flange of a product which is obtained by machining the workpiece are inputted;
- database in which the various data input through the input section and a coefficient for determining a ram speed correspond to each other;
- and
- a ram speed computing section which computes and determines the ram speed based on the various data input through the input section and the database.
1 more element
A bending device for bending a plate-like workpiece, comprising:
- an upper table provided at its lower side with an upper die;
- a lower table located below the upper table and provided at its upper side with a lower die, the upper table and lower table being opposed to each other;
- an actuator which moves one of the upper table and the lower table in an approaching direction and a separating direction in which the one table approaches and separates from the other table, respectively;
- actuator control means which controls the actuator such that a moving speed of the one table in the approaching direction during a bending process becomes equal to a bending process optimal speed which is determined by a maximum machine speed inherent in the one table, a coefficient of a material of a workpiece, a coefficient of a thickness of the workpiece, a coefficient of a product shape and a coefficient of a die.
1 more element
A bending method comprising the following steps:
- a step for determining, as a bending process optimal speed, a moving speed of one of an upper table having an upper die and a lower table having a lower die in directions in which the one table approaches and separates from the other table, by means of a maximum machine speed inherent in the one table, a coefficient of a material of a workpiece, a coefficient of a thickness of the workpiece, a coefficient of a product shape and a coefficient of the die;
- and
- a step for moving the one table in the directions in which the one table approaches and separates from the other table at the determined bending process optimal speed, thereby bending a plate-like workpiece.
Dependencies are inferred from the claim text.