An embodiment of the present invention provides a device for attaching/detaching an idler horn for an actuator module which can have a motor, a reduction gear and a control circuit equipped therein. The device, for attaching/detaching an idler horn, comprises: a ring-shaped elastic switch which surrounds the inner end part of a cylindrical hollow portion provided on one side of a housing that forms the outer skin of an actuator module; and a ring-shaped cover member which is for fixing the ring-shaped elastic switch, wherein the ring-shaped elastic switch can be selectively attached/detached to/from an idler horn by means of elasticity.

Feedback control is carried out on respective servomotors so that detection angles detected by respective input-side encoders become target angles to be obtained when a leading end of a robot has moved to a positioning completion position of a first motion. Subsequently, the position of the leading end of the robot is obtained on the basis of the detection angles detected by the respective output-side encoders. The time from a time point at which the detection angles detected by the input-side encoders are brought to the target angles through the feedback control to a time point at which a vibration width of the calculated position of the leading end of the robot relative to the positioning completion position converges within a convergence range is obtained. The obtained time is set in the stopping duration of the robot.

A rotary axis module includes: an input shaft connected to a drive motor; an output shaft, an output shaft flange connected to the output shaft; parallel gears coupled to the output shaft flange; at least two double gears; and a transfer gear that transmits the power of the drive motor to the double gears. The at least two double gears and the transfer gear are disposed so as to surround the output shaft.

A driving assembly for a joint of a robot includes a first driving source having a first output shaft; a second driving source; and a gear set including a first gear and second gear that are engaged with each other. The first gear is arranged around the first output shaft. An ankle assembly and a robot having the driving assembly are also provided.

A robot arm comprising a joint mechanism for articulating one limb of the arm relative to another limb of the arm about two non-parallel rotation axes, the mechanism comprising: an intermediate carrier attached to a first one of the limbs by a first revolute joint having a first rotation axis and to a second one of the limbs by a second revolute joint having a second rotation axis; a first drive gear disposed about the first rotation axis, the first drive gear being fast with the carrier; a second drive gear disposed about the second rotation axis, the second drive gear being fast with the second one of the limbs; a first drive shaft for driving the first drive gear to rotate about the first rotation axis, the first drive shaft extending along the first one of the limbs and having a first shaft gear thereon, the first shaft gear being arranged to engage the first drive gear; a second drive shaft for driving the second drive gear to rotate about the second rotation axis, the second drive shaft extending along the first one of the limbs and having a second shaft gear thereon, the second shaft gear being arranged to engage the second drive gear; the second drive shaft comprising a prismatic joint whereby the length of the shaft can vary in response to motion of the carrier about the first axis.

A rotary axis module includes: an input shaft connected to a drive motor; an output shaft, an output shaft flange connected to the output shaft; parallel gears coupled to the output shaft flange; at least two double gears; and a transfer gear that transmits the power of the drive motor to the double gears. The at least two double gears and the transfer gear are disposed so as to surround the output shaft.

A device is provided. The device includes a worm drive comprising a worm and a worm gear. The device also includes an actuator comprising a motor, a shaft, and the worm, wherein the shaft is configured to rotate about a shaft axis, and the actuator is configured to (i) drive the worm drive, and (ii) move linearly along the shaft axis. The device also includes a first spring and a second spring, wherein the second ends are fixed, and wherein the first and second springs are configured to resist movement of the actuator along the shaft axis in opposite directions as a result of forces transmitted through the worm drive. The device further includes a linear position encoder configured to determine a position of the actuator along the shaft axis.

Disclosed are a device and a method for controlling a motor. According to a specific embodiment of the present disclosure, an input shaft of a motor is provided with a low-resolution absolute position detector and an output shaft of the motor is provided with a low-resolution absolute position detector having a resolution greater than or equal to a reduction gear ratio. An initial offset and an offset are defined accordingly, and a high-resolution output shaft absolute position is derived from a relational expression, which is defined by an input shaft absolute position received at a predetermined time interval, a derived offset, an output shaft absolute position, and the reduction gear ratio, such that it is possible to easily detect the high-resolution output shaft absolute position by using a low-price absolute position detector without the modification or addition of an actuator.

An embodiment of the present invention provides an actuator module which can be equipped with a motor, a reduction gear and a control circuit, the actuator module comprising: a first housing which can have an active shaft, connected to a motor, pass through and be coupled thereto; and a second housing which is coupled to the first housing and has a passive idler horn, provided in a position in correspondence with the active shaft, pass through and be coupled thereto, wherein the idler horn has interposed a tube-shaped bearing, having a hollow portion formed in the center thereof, is coupled to a side of the second housing, and can have a cable connected into the second housing through the hollow portion of the tube-shaped bearing.

According to an aspect of the invention, a motor operation control system configured to control an operation of a multi-axis mechanical apparatus including motors includes drive control units each of which is provided for one corresponding motor and a central controller configured to output an operation command to the drive control units. Each of the drive control units controls an operation of a motor based on the operation command from the central controller and transmits a response signal to another drive control unit and the central controller through asynchronous serial communication.