PRESS BRAKE CONTROL DEVICE, PRESS BRAKE CONTROL METHOD, DIE, AND DATA STRUCTURE OF DIE INFORMATION

Title:

PRESS BRAKE CONTROL DEVICE, PRESS BRAKE CONTROL METHOD, DIE, AND DATA STRUCTURE OF DIE INFORMATION

Document Type and Number:

WIPO Patent Application WO/2019/230192

Kind Code:

A1

Abstract:

At a time when a sheet metal is sandwiched between a punch held by a punch holder and a die held by a die holder, and the sheet metal is bent at a set bending angle by moving the punch toward the die, a stroke calculation unit (202) calculates a stroke (St) of the punch for bending the sheet metal at the bending angle in consideration of a spring back amount of the bent sheet metal. A bending load calculation unit (203) calculates a bending load (BF) required to bend the sheet metal at the bending angle. A punch warp amount calculation unit (206) calculates a punch warp amount (d206) according to the bending load (BF). A punch holder warp amount calculation unit (207) calculates the punch holder warp amount (d207) according to the bending load (BF). A depth value calculation unit (210) adds at least the punch warp amount (d206) and the punch holder warp amount (d207) to the stroke (St) to calculate a depth value (D210).

Inventors:

JIN YINGJUN (JP)
FUCHINOUE YOHEI (JP)
OMATA HITOSHI (JP)

Application Number:

PCT/JP2019/015107

Publication Date:

December 05, 2019

Filing Date:

April 05, 2019

Export Citation:

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Assignee:

AMADA HOLDINGS CO LTD (JP)

International Classes:

B21D5/02

Domestic Patent References:

WO2011096442A1

2011-08-11

Foreign References:

JPH09192746A	1997-07-29
JPH10109115A	1998-04-28
JP2016530102A	2016-09-29
JPH09192746A	1997-07-29
JP2018101219A	2018-06-28

Other References: