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    • 4. 发明公开
    • ROBOT
    • EP4389363A1
    • 2024-06-26
    • EP23216726.2
    • 2023-12-14
    • Seiko Epson Corporation
    • KIKUCHI, TakayukiNAKANISHI, DaisukeNAGAMATSU, Shoichi
    • B25J9/04B25J18/00
    • B25J9/044B25J18/00
    • A robot includes a base, a first arm coupled rotatably around a first rotation axis relative to the base, a second arm having a base formed by a frame-shaped member and rotating around a second rotation axis parallel to the first rotation axis relative to the first arm, a shaft placed at an opposite side to the first arm of the second arm, a drive unit rotationally driving the second arm around the second rotation axis relative to the first arm, and a supporting portion supporting the shaft to rotate around a third rotation axis parallel to the second rotation axis and move the shaft along an axial direction of the third rotation axis, wherein the base has a first placement portion in which the drive unit is placed, a second placement portion in which the supporting portion is placed, a first beam placed over between the first placement portion and the second placement portion, and a second beam placed over between the first placement portion and the second placement portion and having a projecting portion projecting toward an axial direction of the second rotation axis relative to the first beam.
    • 6. 发明公开
    • CONTROL SYSTEM FOR CONTINUUM ROBOT, AND CONTROL METHOD FOR SAME
    • EP4371712A1
    • 2024-05-22
    • EP22858377.9
    • 2022-08-09
    • CANON KABUSHIKI KAISHA
    • TAKAGI Kiyoshi
    • B25J9/10B25J17/00B25J18/06A61B1/005
    • A61B1/005A61B34/35B25J18/06B25J17/00B25J9/10
    • Provided is a mechanism in which, when there are a plurality of drive control units having different back-drivability as drive control units for curving a curvable portion, switching therebetween can be appropriately performed with a reduced burden on an operator. The control system for a continuum robot includes: a kinematics computing unit (230) that calculates a drive amount of the wire being driven by a drive unit from a bending angle of the curvable portion of a continuum robot (100); a low back-drivability drive control unit (251) that controls the drive amount of the wire being driven by the drive unit based on a result of the kinematics computation; a high back-drivability drive control unit (252) with which the drive unit is more easily driven in a reverse direction than in a case of drive control performed by the drive control unit (251) when the curvable portion is subjected to an external force, the drive control unit (252) being configured to control the drive amount of the wire being driven by the drive unit based on the result of the kinematics computation; and a switching control unit (220) that performs control to switch between the drive control unit (251) and the second drive control unit (252) in accordance with a mode signal indicating a drive control unit to be selected or a result of detecting a force applied to the wire.
    • 9. 发明公开
    • MECHANICAL ARM AND CONTROL METHOD THEREFOR
    • EP4299030A1
    • 2024-01-03
    • EP22810214.1
    • 2022-04-07
    • Agibot Medtech (Suzhou) Co., Ltd.
    • CHENG, HaoXU, Min
    • A61B34/30B25J18/00
    • The present invention relates to a mechanical arm and a control method therefor. The mechanical arm comprises a spatial positioning mechanism, a planar motion mechanism, and a self-rotating joint that connects the spatial positioning mechanism and the planar motion mechanism, wherein the space positioning mechanism comprises a base and a joint mechanism, the joint mechanism comprises a plurality of joints which are installed in sequence, the joint at the head end of the joint mechanism is installed on the base, and the joint at the tail end of the joint mechanism is rotatably connected to the self-rotating joint; the tail end of the planar motion mechanism is connected to a surgical instrument, and a vertical line of the plane where the planar motion mechanism is located is perpendicular to the rotation axis of the self-rotating joint; the intersection between the rotation axis of the self-rotating joint section and the axis of the surgical instrument is a driving fixed point, so as to conveniently set the driving fixed point; the rotation of the surgical instrument around the driving fixed point does not require the spatial positioning mechanism to move, such that the occurrence of multi-arm collision is reduced; and the infinity solution of the same posture of the surgical instrument can be realized by means of the linkage of the spatial positioning mechanism, the planar motion mechanism and the self-rotating joint, such that the kinematics solution is simple.