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1. 发明公开

EP0940196A4 BENDING ANGLE CORRECTION METHOD AND PRESS BRAKE MADE USING THE SAME 失效
标题翻译：弯曲角度校正处理，而这样产生的弯曲压力机
公开(公告)号：EP0940196A4
公开(公告)日：2000-03-01
申请号：EP97943182
申请日：1997-10-09
申请人： KOMATSU MFG CO LTD , KOMATSU IND CORP
发明人： TAKADA MASAAKI
IPC分类号： B21D5/02 , G05B19/41
CPC分类号： G05B19/41 , B21D5/02 , B30B1/186 , G05B2219/36486 , G05B2219/37582 , G05B2219/45143
摘要： A bending angle correction method capable of simply and accurately driving a work over the whole length thereof without being influenced by the scatter of the material thereof. When a plate type work is bent by the cooperation of a driving metal mold (punch) driven by not less than three driving shafts and a fixed metal mold (die) disposed so as to be opposed to the driving metal mold, a bending angle of a work is detected in the midst of a bending process, and a deviation of the detected bending angle and a target bending angle from each other is determined in at least three positions including both ends of the work and an intermediate portion thereof except these ends, a correction value for a driving metal mold driving amount in the axial positions on the driving shafts being determined on the basis of the determined deviation.

2. 发明授权

EP0940196B1 BENDING ANGLE CORRECTION METHOD AND PRESS BRAKE MADE USING THE SAME 失效
标题翻译：弯曲角度校正处理，而这样产生的弯曲压力机
公开(公告)号：EP0940196B1
公开(公告)日：2002-05-22
申请号：EP97943182.2
申请日：1997-10-09
申请人： KOMATSU LTD. , KOMATSU INDUSTRIES CORPORATION
发明人： TAKADA, Masaaki, Komatsu Industries Corporation
IPC分类号： B21D5/02
CPC分类号： G05B19/41 , B21D5/02 , B30B1/186 , G05B2219/36486 , G05B2219/37582 , G05B2219/45143

3. 发明公开

EP0940196A1 BENDING ANGLE CORRECTION METHOD AND PRESS BRAKE MADE USING THE SAME 失效
标题翻译： BIEGEWINKELKORREKTURVERFAHREN UND HERETELTELLTE BIEGEPRESSE
公开(公告)号：EP0940196A1
公开(公告)日：1999-09-08
申请号：EP97943182.2
申请日：1997-10-09
申请人： KOMATSU LTD. , KOMATSU INDUSTRIES CORPORATION
发明人： TAKADA, Masaaki, Komatsu Industries Corporation
IPC分类号： B21D5/02
CPC分类号： G05B19/41 , B21D5/02 , B30B1/186 , G05B2219/36486 , G05B2219/37582 , G05B2219/45143
摘要： A bend angle correction method directed to carrying out simple and accurate penetration of a movable die into a fixed die to produce a uniform angle throughout the length of a workpiece, being unaffected by material variations. When bending a sheet-like workpiece to a desired angle by the cooperative movement of a movable die (punch) driven by three or more drive shafts and a fixed die (die) disposed in an opposing relationship with the movable die, the bend angle of the workpiece is measured during bending operation and the difference between the measured bend angle and a target angle is obtained, at at least three points which are the ends and center of the workpiece. Based on the differences, correction amounts for the penetration of the movable die are obtained on a shaft-load imposed point basis.
摘要翻译：一种弯曲角度校正方法，其目的在于将可动模具简单且准确地穿透到固定模具中，以在工件的整个长度上产生均匀的角度，不受材料变化的影响。通过由三个或更多个驱动轴驱动的可动模具（冲头）和与可动模具相对设置的固定模具（模具）的协作运动将片状工件弯曲成所需的角度时，弯曲角度在弯曲操作期间测量工件，并且在作为工件的端部和中心的至少三个点处获得测量的弯曲角度和目标角度之间的差。基于这些差异，可以在轴承重点的基础上获得可动模具的穿透的校正量。

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