公开(公告)号：US20210370526A1

公开(公告)日：2021-12-02

申请号：US17263704

申请日：2019-08-01

申请人： THK CO., LTD.

发明人： Katsuya Fukushima ,  Masashi Ishii ,  Hiroki Niwa ,  Shigeki Hayashi ,  Akira Suzuki ,  Kazuto Oga ,  Shogo Wakuta ,  Satoshi Hara ,  Tomofumi Mizuno ,  Satoru Nagai

IPC分类号： B25J15/06

摘要： The present invention reduces tact time for a pick-and-place operation by an actuator. In a housing of the actuator, an air passage being a passage of air when sucking air from a hollow part of a shaft is provided. Furthermore, a sucking valve that sucks air from the hollow part of the shaft through the air passage and a suction detecting sensor to detect that a workpiece is suctioned onto a tip of the shaft are provided in the air passage. Then, in the housing, the air passage is disposed at a position on a side opposite to a linear motion motor that moves the shaft in an axial direction of the shaft, via the shaft.

公开(公告)号：US20220214311A1

公开(公告)日：2022-07-07

申请号：US17605316

申请日：2020-04-24

申请人： THK CO., LTD.

发明人： Shuhei Yamanaka ,  Katsuya Iida ,  Takuya Sakamoto ,  Yoshiyuki Honjo ,  Hiroshi Inoko ,  Masatomo Tokuno ,  Satoru Nagai

IPC分类号： G01N29/12 ,  G01M15/02

摘要： An abnormality diagnosis system that diagnoses an abnormality related to each control shaft in equipment in which the plurality of control shafts, each including a motor and an output unit driven by the motor, are incorporated, includes: a plurality of vibration sensors that are provided for the plurality of control shafts, respectively, and that detect vibration occurring in connection with driving of the motor corresponding to each control shaft; a calculation unit that calculates, for each of the plurality of control shafts, vibration levels in a plurality of predetermined frequency ranges, based on vibration information detected by each of the plurality of vibration sensors; and a diagnosis unit that diagnoses an abnormality related to each control shaft, based on a distribution state, across the plurality of predetermined frequency ranges and across the plurality of control shafts, of the vibration levels calculated by the calculation unit.

公开(公告)号：US12036666B2

公开(公告)日：2024-07-16

申请号：US17263704

申请日：2019-08-01

申请人： THK CO., LTD.

发明人： Katsuya Fukushima ,  Masashi Ishii ,  Hiroki Niwa ,  Shigeki Hayashi ,  Akira Suzuki ,  Kazuto Oga ,  Shogo Wakuta ,  Satoshi Hara ,  Tomofumi Mizuno ,  Satoru Nagai

IPC分类号： B25J15/06

CPC分类号： B25J15/0625 ,  B25J15/0658

摘要： The present invention reduces tact time for a pick-and-place operation by an actuator. In a housing of the actuator, an air passage being a passage of air when sucking air from a hollow part of a shaft is provided. Furthermore, a sucking valve that sucks air from the hollow part of the shaft through the air passage and a suction detecting sensor to detect that a workpiece is suctioned onto a tip of the shaft are provided in the air passage. Then, in the housing, the air passage is disposed at a position on a side opposite to a linear motion motor that moves the shaft in an axial direction of the shaft, via the shaft.