Planar drive device, and method for operating a planar drive device

    公开(公告)号:US11897130B2

    公开(公告)日:2024-02-13

    申请号:US17844902

    申请日:2022-06-21

    CPC分类号: B25J9/1065

    摘要: A planar drive device having a first platform and having a second platform, which platforms are movable in an X-Y plane on a work bench, wherein the first platform has a frame, a transmission and a working platform for the arrangement of a work tool, wherein the transmission permits an adjustment of the distance of the working platform with respect to the X-Y plane, wherein the second platform has a frame and a drive member which is coupled in terms of movement at least indirectly to the working platform such that the distance of the working platform from the X-Y plane is adjustable by changing a distance between the two platforms within the X-Y plane. The work tool can be transferred into at least two different working states by relative movement of the platforms in the X-Y plane.

    Rotary-linear actuation assembly
    2.
    发明授权

    公开(公告)号:US11121616B2

    公开(公告)日:2021-09-14

    申请号:US16493067

    申请日:2018-03-14

    申请人: AROL S.P.A.

    发明人: Marco Cipriani

    摘要: A rotary-linear actuation assembly is provided, in particular of a kind suitable to provide in independent manner at its output, either sequentially or simultaneously, a rotary movement and a linear translation movement. The assembly comprises a casing internally housing an output shaft arranged coaxial with an actuation axis (A) in a translationally and rotationally movable manner; and at least two electromagnetic actuators each comprising a respective electromagnetic stator and a respective magnetic rotor, a first of which being a linear actuator adapted to impart, at its output, a translational movement along the actuation axis (A), and a second of which being a rotary actuator adapted to impart, at its output, a rotary movement around the actuation axis (A). The electromagnetic stators of the electromagnetic actuators are arranged in a mutually coaxial and concentric manner, and each actuator independently acts on the output shaft.

    Method of controlling synchronous electric motor with permanent magnets

    公开(公告)号:US10594243B2

    公开(公告)日:2020-03-17

    申请号:US16051996

    申请日:2018-08-01

    摘要: An invention relates to synchronous electric motors, in particular, to a method of controlling a synchronous electric motor with permanent magnets, utilized as a linear drive for an electric submersible pump unit. A technical result achieved from a method embodiment consists in increasing an accuracy of a torque control of the electric motor and improving an energy efficiency of the electric motor, as well as in achieving an increase in an operation speed of control systems by minimizing settings and eliminating complex calculations of motor parameters. An essence of the claimed method consists in an implementation of an algorithm of the control system of the synchronous electric motor with permanent magnets, utilized, in particular, as a linear drive for an electric submersible pump unit.

    Forming machine, in particular a forging hammer

    公开(公告)号:US10293398B2

    公开(公告)日:2019-05-21

    申请号:US15765985

    申请日:2016-09-12

    发明人: Markus Otto

    摘要: The underlying invention relates in particular to a forming machine, having an electromagnetic linear motor with a linear mover and multiple coil units each with a predetermined coil pole pitch (S) which is measured in the direction of the movement axis. The linear mover includes, in an alternating arrangement along the longitudinal axis (L) thereof, first permanent magnets which are magnetized transversely to the longitudinal axis with a predetermined first magnetic pitch (T1) and second permanent magnets which are magnetized in the direction of the longitudinal axis (L) with a predetermined second magnetic pitch (T2), wherein a ratio of coil width (S) to first magnetic pitch (T1) is 3:1, and wherein a ratio of first magnetic pitch (T1) to second magnetic pitch (T2) is 2:1.

    Linear motor motion stage with passive reaction force compensation function

    公开(公告)号:US10232734B2

    公开(公告)日:2019-03-19

    申请号:US15860798

    申请日:2018-01-03

    发明人: Hyeong Joon Ahn

    摘要: Provided is a linear motor motion stage having a passive reaction force compensation function. The linear motor motion stage includes: a base; a magnet track moving on the base; a mover which is moved on a surface of the magnet track by an electromagnetic force generated in a gap with the magnet track; first and second horizontal springs arranged between one side and the other side, respectively, of the magnet track and the base and configured to attenuate a reaction force applied to the base by movement of the mover; and a cross spring arranged between a lower side of the magnet track and the base and configured to attenuate the reaction force. Herein, the linear motor motion stage controls reaction force compensation applied to the linear motor motion stage by controlling the stiffness of the cross spring.

    Driving apparatus that drives moving body in multiple directions, control method therefor, storage medium, and electronic apparatus

    公开(公告)号:US10186990B2

    公开(公告)日:2019-01-22

    申请号:US15824353

    申请日:2017-11-28

    发明人: Jun Sumioka

    摘要: A driving apparatus which reduces power consumption as compared to conventional driving apparatuses. A voltage amplitude of first AC voltages is controlled based on a relative angle between a moving direction of a moving body, which is indicated by a driving command for moving the moving body, and a driving direction of a first vibrator, and a voltage amplitude of second AC voltages is controlled based on a relative angle between the moving direction and a driving direction of a second vibrator. Each of the first vibrator and the second vibrator is controlled based on a deviation between the driving command and a detected position of the moving body while the first AC voltages and the second AC voltages are being controlled. The driving direction of the first vibrator and the driving direction of the second vibrator cross each other.

    Voice coil motor
    10.
    发明授权

    公开(公告)号:US10135325B2

    公开(公告)日:2018-11-20

    申请号:US15630721

    申请日:2017-06-22

    发明人: Sanghee Lee

    摘要: Disclosed is a voice coil motor, the motor including a mover having a bobbin equipped with a lens and a coil block secured to an outer circumference of the bobbin; a stator having a magnet that is disposed in such a way as to face the coil block; elastic members coupled to a lower end of the bobbin and connected to both ends of the coil block; a base supporting the elastic members and the stator; and a cover can covering the mover, the stator and the base, with an opening being formed in the cover can to expose the lens therethrough, wherein each of the elastic members includes a terminal portion that extends between the cover can and a side surface of the base, the terminal portion including a short-circuit prevention portion so as to inhibit a short-circuit between the terminal portion and the cover can.