公开(公告)号：US20180200826A1

公开(公告)日：2018-07-19

申请号：US15754743

申请日：2016-08-22

Applicant: NTN CORPORATION

Inventor： Naoya KONAGAI ,  Hiroshi ISOBE ,  Seigo SAKATA ,  Hiroyuki YAMADA

IPC: B23K9/127 ,  B23K9/28 ,  B23K9/173

CPC classification number: B23K9/127 ,  B23K9/12 ,  B23K9/173 ,  B23K9/28 ,  B23K9/287

Abstract: An automatic welding machine includes a link actuator in which a distal end side link hub is coupled to a proximal end side link hub via three or more link mechanisms and the position of the distal end side link hub relative to the proximal end side link hub can be arbitrarily changed. The automatic welding machine is provided with one or more linear motion actuators configured to cause the proximal end side link hub of the link actuator to advance/retract relative to a mount along respective axes, and a welding torch is mounted on the distal end side link hub. The automatic welding machine further includes a movement mechanism on which peripheral devices connected to the welding torch via cables are mounted so as to be movable in one or more axial directions.

公开(公告)号：US20180207810A1

公开(公告)日：2018-07-26

申请号：US15928970

申请日：2018-03-22

Applicant: NTN CORPORATION

Inventor： Naoya KONAGAI ,  Hiroshi ISOBE ,  Seigo SAKATA ,  Naoki MARUI ,  Kenzou NOSE

IPC: B25J17/00 ,  F16H21/44

CPC classification number: B25J17/00 ,  B25J5/04 ,  B25J9/0018 ,  B25J9/0048 ,  B25J9/0087 ,  F16H21/44 ,  F16H21/46 ,  Y10S901/28

Abstract: A combination link actuation device has two link actuation devices combined with each other. Each link actuation device is provided so as to connect a distal end side link hub to a proximal end side link hub such that an orientation of the distal end side link hub is changed relative to the proximal end side link hub through three link mechanisms aligned in a circumferential direction. An orientation controlling actuator is provided in two or more link mechanisms among the three link mechanisms to optionally change an orientation of the distal end side link hub relative to the proximal end side link hub. At least one circumferential separation angle among separation angles of the three link mechanisms is greater than 120°. The two link actuation devices are disposed such that portions, of the link mechanisms, where the separation angle is greater than 120° oppose each other.

公开(公告)号：US20190152046A1

公开(公告)日：2019-05-23

申请号：US16204777

申请日：2018-11-29

Applicant: NTN CORPORATION

Inventor： Naoya KONAGAI ,  Hiroshi ISOBE

IPC: B25J9/00 ,  F16H21/54 ,  B25J15/00

Abstract: A working device (1) using a parallel link mechanism includes: a parallel link mechanism (10) by which end effectors (4, 5) are supported so as to be changeable in posture; and posture-controlling actuators (11) which actuate the parallel link mechanism (10). In the parallel link mechanism (10), a distal-end-side link hub (13) is connected to a proximal-end-side link hub (12) via three or more link mechanisms (14) so as to be changeable in posture of the distal-end-side link hub (13) relative to the proximal-end-side link hub (12). The end effectors (4, 5) are mounted to the distal-end-side link hub (12), and includes one main end effector (4) which performs a main work on a workpiece (3) and one or multiple sub end effectors (5) which perform an auxiliary work on the workpiece (3).

公开(公告)号：US20170268640A1

公开(公告)日：2017-09-21

申请号：US15614038

申请日：2017-06-05

Applicant: NTN CORPORATION

Inventor： Seigo SAKATA ,  Yukihiro NISHIO ,  Hiroshi ISOBE ,  Naoya KONAGAI ,  Hiroyuki YAMADA

IPC: F16H21/48 ,  G06F3/03 ,  B25J13/06 ,  B25J9/10 ,  B25J9/16

CPC classification number: F16H21/48 ,  B25J9/0048 ,  B25J9/106 ,  B25J9/108 ,  B25J9/1623 ,  B25J13/06 ,  B25J13/065 ,  F16C19/22 ,  F16H21/46 ,  G06F3/0321

Abstract: An operation device for a link actuating device (51) is provided with a target value input unit (57) having a height direction target value input portion (57z) that allows input of a movement amount in a height direction or a coordinate position in the height direction, which causes the distal end posture of the link actuating device (51) to be changed only in the height direction along a central axis of a proximal end side link hub (12). Input converter (58) is provided to calculate, by using an inputted value, a target distal end posture of the link actuating device (51). The Input converter (58) further calculates a command operation amount of each actuator (53) from the result of the calculation, and inputs the command operation amount to the control device (54).