Rotary-linear actuation assembly

A rotary-linear actuation assembly (10) comprising a casing (25) internally housing:

• an output shaft (13) arranged coaxial with an actuation axis (A) in a translationally and rotationally movable manner;
• and
• at least two electromagnetic actuators (11, 12) each comprising a respective electromagnetic stator (16, 15) and a respective magnetic rotor (18, 17), a first of which is a linear actuator (11) adapted to impart, at its output, a translational movement along the actuation axis (A), and a second of which is a rotary actuator (12) adapted to impart, at its output, a rotary movement around the actuation axis (A),
• wherein the electromagnetic stators (15, 16) of the electromagnetic actuators (11, 12) are arranged in a mutually coaxial and concentric manner, and each actuator (11, 12) independently acts on the output shaft (13), and
• wherein inside the casing (25), a central rod (14) extends coaxially with the output shaft (13) and partly inside the output shaft (13), a radially outermost electromagnetic stator (15, 16) out of the first (16) and the second (15) electromagnetic stator being integrally constrained inside the casing (25) and one radially innermost electromagnetic stator (16, 15) out of the first (16) and the second (15) electromagnetic stator being integrally constrained to the central rod (14).