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公开(公告)号：US12076776B2
公开(公告)日：2024-09-03
申请号：US17563087
申请日：2021-12-28
IPC分类号： B21D5/02
CPC分类号： B21D5/0209 , B21D5/0272 , B21D5/0281
摘要： There is provided a press brake that can improve forming accuracy in partial bending. A press brake includes: a conveying mechanism that intermittently conveys a workpiece; a die including a pair of shoulder portions and a groove portion located between the pair of shoulder portions, the pair of shoulder portions being arranged away from each other in a conveying direction of the workpiece and supporting a rear surface of the workpiece; a backup plate that extends on the pair of shoulder portions, covers the groove portion, and is interposed between the die and the workpiece; and a punch that moves relative to the die so as to approach the die each time the conveying mechanism stops conveying the workpiece and presses the workpiece so as to bend the workpiece within an elastic deformation region of the backup plate.
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公开(公告)号：US10293431B2
公开(公告)日：2019-05-21
申请号：US15533252
申请日：2015-12-14
发明人： Hideki Okada , Junichi Tamura , Kenichi Kamimuki
摘要： A friction stir spot welding apparatus includes a pin member, a shoulder member, a rotation driver, a forward/backward movement driver, and a controller. The controller controls the forward/backward movement driver, such that the pin member and/or the shoulder member press workpieces before a clamp member presses the workpieces, and then controls the rotation driver and the forward/backward movement driver, such that the pin member and the shoulder member stir the workpieces.
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公开(公告)号：US11813692B2
公开(公告)日：2023-11-14
申请号：US17432570
申请日：2020-02-21
发明人： Hideki Okada , Yusuke Yoshida , Kenichi Kamimuki
CPC分类号： B23K20/1245
摘要： A friction stir welding apparatus is used at a butted portion where a second workpiece is butted against a first workpiece such that the second workpiece is upright on the first workpiece. The friction stir welding apparatus includes: a rotary tool that is plunged into one inner corner of a pair of inner corners that are positioned, at the butted portion, on both sides of the second workpiece, respectively; an inner corner presser that presses the other inner corner of the pair of inner corners; and a mover that moves the rotary tool and the inner corner presser along a direction in which the butted portion extends. The inner corner presser includes a pressing roller that presses the other inner corner while rolling in a state where the inner corner presser is being moved by the mover.
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公开(公告)号：US11040386B2
公开(公告)日：2021-06-22
申请号：US16215761
申请日：2018-12-11
发明人： Hideki Okada , Yoichiro Honda , Yasuhiro Kasumi
摘要： To a fulcrum roll unit portion in a workpiece, a corresponding initial curvature radius is applied, and to a bending roll unit portion in a workpiece, a corresponding design curvature radius is applied. To an intermediate unit portion in a workpiece, an intermediate curvature radius set so as to continuously change from the initial curvature radius to the design curvature radius is applied. At least one of the fulcrum roll and the bending roll is moved on the basis of an integrated value obtained by integrating the amount of change in bending position in each of the intermediate unit portion and the bending roll unit portion.
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公开(公告)号：US10661323B2
公开(公告)日：2020-05-26
申请号：US15391441
申请日：2016-12-27
发明人： Hideki Okada , Yasuhiro Kasumi
摘要： Forming roll units included in an apparatus for manufacturing a roll-formed component each include a roll pair. The roll pair includes a receiving roll part and a first bending roll part that face each other. A plate member passing area is formed below the first bending roll part, the plate member passing area allowing a roll formed member excluding its side edge portions to pass through. The roll pair is configured to make, during bending, sliding movement in a width direction of the roll formed member and rotational movement about a normal direction to the roll formed member as a rotational center.
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6.发明申请公开(公告)号：US20150183054A1
公开(公告)日：2015-07-02
申请号：US14416167
申请日：2013-08-06
发明人： Hideki Okada
IPC分类号： B23K20/12
CPC分类号： B23K20/1245 , B23K20/1255
摘要： A double-acting friction stir welding tool according to the present invention at least includes: a columnar pin member; and a shoulder member positioned outside the pin member and having a cylindrical shape, the shoulder member being configured to rotate around an axis, which is the same as an axis of rotation of the pin member. A contact surface and an outer peripheral surface of the pin member, the contact surface coming into contact with a workpiece, have non-affinity for the workpiece. The shoulder member is configured such that an inner peripheral surface and an outer peripheral surface, the inner peripheral surface facing the pin member, have non-affinity for the workpiece, and only a contact surface coming into contact with the workpiece has an affinity for the workpiece. A clearance between the pin member and the shoulder member may be suitably set.
摘要翻译： 根据本发明的双作用摩擦搅拌焊接工具至少包括：柱形销构件; 以及肩部构件，其定位在所述销构件的外侧并具有圆柱形形状，所述肩部构件被构造成围绕与所述销构件的旋转轴线相同的轴线旋转。 销构件的与工件接触的接触表面和外周表面对工件具有非亲和性。 肩部构件使得内周面和面向销构件的内周面的外周面对于工件具有非亲和性，并且仅与工件接触的接触表面对于 工件。 可以适当地设置销构件和肩部构件之间的间隙。
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公开(公告)号：US11660650B2
公开(公告)日：2023-05-30
申请号：US17319573
申请日：2021-05-13
发明人： Hideki Okada , Yoichiro Honda , Yasuhiro Kasumi
摘要： To a fulcrum roll unit portion in a workpiece, a corresponding initial curvature radius is applied, and to a bending roll unit portion in a workpiece, a corresponding design curvature radius is applied. To an intermediate unit portion in a workpiece, an intermediate curvature radius set so as to continuously change from the initial curvature radius to the design curvature radius is applied. At least one of the fulcrum roll and the bending roll is moved on the basis of an integrated value obtained by integrating the amount of change in bending position in each of the intermediate unit portion and the bending roll unit portion.
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公开(公告)号：US09302343B2
公开(公告)日：2016-04-05
申请号：US14578970
申请日：2014-12-22
发明人： Masaki Kumagai , Hideki Okada , Arinobu Mori , Kenji Hayafuji
IPC分类号： B23K20/12
CPC分类号： B23K20/1265 , B23K20/126
摘要： Friction stir spot-welding is performed to join together a stack of a plurality of metal foils and a metal sheet by using a double-acting type rotary tool including a hollow member and a pin member which are movable independently of each other in their axial directions, and a clamp member which is fitted on an outer circumferential surface of the hollow member and which is movable in its axial direction. While an outer annular part of a portion to be friction-stirred is pressed with the clamp member, the pin member is inserted into the above-described portion and the hollow member is retracted, whereby a metal mass is accommodated within a space formed between the above-described portion and the hollow member. Then, the hollow member is advanced to press the metal mass into a hole formed by retraction of the pin member, whereby the hole is filled with the metal mass.
摘要翻译： 通过使用包括中空构件和销构件的双作用型旋转工具来进行摩擦搅拌点焊以将多个金属箔和金属板的堆叠接合在一起，所述双作用型旋转工具可以在它们的轴向上彼此独立地移动 以及夹紧构件，其配合在中空构件的外周面上并且能够在其轴向上移动。 当被摩擦搅拌的部分的外环形部分被夹紧构件挤压时，销构件被插入到上述部分中，并且中空构件缩回，由此金属块容纳在形成在 上述部分和中空构件。 然后，使中空构件前进，将金属块压入通过销构件缩回形成的孔中，由此填充金属块。
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公开(公告)号：US11654468B2
公开(公告)日：2023-05-23
申请号：US17404636
申请日：2021-08-17
发明人： Hideki Okada , Akiyoshi Ono
摘要： A roll bending apparatus includes: a roll pair formed by a pair of rolls disposed facing each other, the roll pair being configured to sandwich an elongated material between the rolls to perform forming on the elongated material; a slide mechanism configured to slide the roll pair in a first normal direction that is a direction normal to a conveying direction of the elongated material on a plane including the conveying direction; and a tilt mechanism configured to rotate the roll pair about a tilt axis that extends in a second normal direction that is a direction orthogonal to the conveying direction and the first normal direction. The slide mechanism further slides the roll pair to change a position of the roll pair relative to the tilt axis.
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公开(公告)号：US09839973B2
公开(公告)日：2017-12-12
申请号：US15108347
申请日：2013-12-27
发明人： Hideki Okada , Ryoji Ohashi , Satoru Yamasumi
IPC分类号： B23K20/12
CPC分类号： B23K20/123 , B23K20/1245 , B23K20/125 , B23K20/126
摘要： A friction stir spot welding apparatus according to the present invention includes: a rotary tool; and a perpendicular-to-plane detector, which detects whether or not the rotary tool is positioned to be in a perpendicular-to-plane state relative to a joining target portion of workpieces. The perpendicular-to-plane detector measures distances to at least three measurement positions set around the joining target portion by means of, for example, position sensors. The measurement positions are set to be positioned at the vertices of a polygon on a reference plane to which forward and backward movement directions of the rotary tool are normal. The perpendicular-to-plane detector detects that the rotary tool is positioned to be in the perpendicular-to-plane state relative to the joining target portion of the workpieces if all the distances to the measurement positions are equal to each other.
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