公开(公告)号：US20190287573A1

公开(公告)日：2019-09-19

申请号：US16294973

申请日：2019-03-07

Applicant: Nidec Corporation

Inventor： Tomonori TERASAKI ,  Tomohiro YONEDA ,  Junzo FUJINAWA ,  Hirokazu WATANABE ,  Tadahiro KURAMOTO

IPC: G11B33/02 ,  G11B33/12

Abstract: A base unit includes a support to support a motor, a bottom plate, and a wall. The bottom plate extends radially outward from the support. The wall extends upward from an outer periphery of the bottom plate, and includes a rectangular opening in planar view. Surfaces of the bottom plate and the wall include a cover surface covered with an electrodeposition coating film and an exposed surface in which a material of the base unit is exposed from the electrodeposition coating film. At least an upper end surface of the wall and a partial region of an inside wall surface of the wall continuous with the upper end surface are each the exposed surface.

公开(公告)号：US20190299416A1

公开(公告)日：2019-10-03

申请号：US16360249

申请日：2019-03-21

Applicant: Nidec Corporation

Inventor： Hirokazu WATANABE ,  Haruhiro TSUNETA

IPC: B25J9/16 ,  B25J9/06

Abstract: In a method of obtaining an angle of each joint of a 6-axis vertical articulated robot when a position and a posture of an end effector attached on a sixth axis are given, a predetermined amount of offset exists between a sixth axis and a fourth axis, and the method includes sequentially determining a point of interest, which is a point on a circumference of a circle having the predetermined amount as a radius, around a first intersection point, on a plane which includes the first intersection point which is an intersection point of the sixth axis and the fifth axis and the plane which is orthogonal to the sixth axis, calculating a second intersection point, which is an intersection point of the fourth axis and the third axis, when it is assumed that the point of interest is an intersection point of the fifth axis and the fourth axis, calculating an inner product value of a first vector directed from the calculated second intersection point to the point of interest and a second vector directed from the point of interest to the first intersection point, and estimating that the point of interest, when an absolute value of the inner product value is less than or equal to a predetermined threshold, is an intersection point of the fifth axis and the fourth axis.

公开(公告)号：US20200298422A1

公开(公告)日：2020-09-24

申请号：US16089372

申请日：2017-03-09

Applicant: NIDEC CORPORATION

Inventor： Yuu AYUZAWA ,  Haruhiro TSUNETA ,  Hideyuki ODAGIRI ,  Hirokazu WATANABE

IPC: B25J17/00 ,  B25J9/10 ,  B25J9/00 ,  B25J9/12 ,  B25J9/04

Abstract: Provided is a robot equipped with two joint parts attached to an end of an arm in a coupled state. For example, in a joint part of a robot, a motor and a reduction gear are housed in a case, and an output-side member having a flange is fixed to the output shaft of the reduction gear. An opening that opens in the direction orthogonal to the axial direction of the output shaft of the reduction gear is formed in the case. A planar attachment face orthogonal to the opening direction of the opening is formed in the opening. The robot is provided with a plurality of biaxial joint units comprising two joint parts. In the robot, the attachment face of the case of one joint part constituting a biaxial joint unit is fixed to the flange of the other joint part either directly or via a coupling member.