Abstract: A multi-axis linear motor actuator has a circuit board having a size covering coil portions in linear shaft motors arranged in a row, and combined with the linear shaft motors to be adjacent thereto and parallel to its arrangement direction; and magnetic shielding plates, longer than the coil portions, arranged and fixed along an axial direction at positions corresponding to positions between adjacent coil portions. Hall sensors are installed in the circuit board in each region corresponding to each linear shaft motor at intervals in a moving direction of a shaft of each linear shaft motor. Each magnetic shielding plate has a wide portion with a width greater than a diameter of the coil portion at a part corresponding to the region where the Hall sensors are installed. The circuit board has first slits for inserting the wide portions. The Hall sensors are installed adjacent to the wide portion.

Abstract: A multi-axis linear motor actuator has a circuit board having a size covering coil portions in linear shaft motors arranged in a row, and combined with the linear shaft motors to be adjacent thereto and parallel to its arrangement direction; and magnetic shielding plates, longer than the coil portions, arranged and fixed along an axial direction at positions corresponding to positions between adjacent coil portions. Hall sensors are installed in the circuit board in each region corresponding to each linear shaft motor at intervals in a moving direction of a shaft of each linear shaft motor. Each magnetic shielding plate has a wide portion with a width greater than a diameter of the coil portion at a part corresponding to the region where the Hall sensors are installed. The circuit board has first slits for inserting the wide portions. The Hall sensors are installed adjacent to the wide portion.

Abstract: Provided is a method for manufacturing a coil unit that is suited to the bulk manufacturing of multiple sets of coil parts for a multi-axis linear motor actuator. This method of manufacturing a coil unit for a multi-axis linear motor actuator, which is constituted by disposing multiple sets of linear shaft motors 10 in a line at a prescribed pitch, includes: a step in which a coil fixing member 50 is prepared that holds receiving parts 51 that are capable of receiving multiple coil parts 15, which are equal in quantity to the multiple sets of linear shaft motors, with the coil parts being arranged in a line at the prescribed pitch; a step in which the multiple coil parts are disposed by being arranged in a line and secured to the coil fixing member; and a step in which electromagnetic shielding plates 70 that are longer than the coil parts are disposed along a center axis direction at locations corresponding to the spaces between at least adjacent coil parts among the multiple coil parts disposed in the line.