Boring bar with electrodynamic actuators for counteracting vibrations and machine tool provided with such a bar
Номер патента: EP4146421A1
Опубликовано: 15-03-2023
Автор(ы): Mathieu Noe
Принадлежит: HUTCHINSON SA
Опубликовано: 15-03-2023
Автор(ы): Mathieu Noe
Принадлежит: HUTCHINSON SA
Реферат: Boring bar with electrodynamic actuators for counteracting vibrations and machine tool provided with such a bar. The boring bar (BF) is provided with a wall (P), an internal recess (LI) and a longitudinal axis (Z), the boring bar (BF) comprising, in its internal recess (LI): • a first electrodynamic actuator (100) provided with coil windings (101, 102) associated with a moving mass (110) and a spring assembly (120, 121) that are arranged to define a first actuation direction (X) perpendicular to the longitudinal axis (Z) of the boring bar; • a second electrodynamic actuator (200) provided with coil windings (201, 202) associated with a moving mass (210) and a spring assembly (220, 221) that are arranged to define a second actuation direction (Y) perpendicular to both the first actuation direction (X) and the longitudinal axis (Z) of the boring bar. The actuators thus allow counteraction of the vibrations in the directions (X, Y) perpendicular to the longitudinal axis (Z) of the bar. The longitudinal axis also defines the boring direction.
Means for damping vibrations, for example self-generated oscillations in boring bars and similar
Номер патента: CA2104383C. Автор: Lauritz Andreassen. Владелец: Teeness As. Дата публикации: 2003-07-01.