Patents Assigned to MAQ AB
  • Patent number: 12203521
    Abstract: A damper device for a machine tool, the damper device comprising a tubular element having a cavity and a central axis, the tubular element comprising a first surface; a damping mass arranged within the cavity and movable radially with respect to the central axis and relative to the tubular element; at least one spring element supporting the damping mass relative to the tubular element, the damping mass and the at least one spring element being arranged to attenuate kinetic vibration energy of the damper device; at least one fixed part having a fixed interior portion inside the cavity and a second surface; and a vibration damping material provided between the first surface and the second surface, the vibration damping material being arranged to attenuate potential vibration energy of the damper device; wherein the vibration damping material is substantially evenly compressed between the first surface and the second surface.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: January 21, 2025
    Assignee: MAQ AB
    Inventor: Qilin Fu
  • Publication number: 20240035543
    Abstract: A damper device for a machine tool, the damper device comprising a tubular element having a cavity and a central axis, the tubular element comprising a first surface; a damping mass arranged within the cavity and movable radially with respect to the central axis and relative to the tubular element; at least one spring element supporting the damping mass relative to the tubular element, the damping mass and the at least one spring element being arranged to attenuate kinetic vibration energy of the damper device; at least one fixed part having a fixed interior portion inside the cavity and a second surface; and a vibration damping material provided between the first surface and the second surface, the vibration damping material being arranged to attenuate potential vibration energy of the damper device; wherein the vibration damping material is substantially evenly compressed between the first surface and the second surface.
    Type: Application
    Filed: March 30, 2021
    Publication date: February 1, 2024
    Applicant: MAQ AB
    Inventor: Qilin FU
  • Publication number: 20230116863
    Abstract: A tool holder, for a tool assembly, comprising a tubular element having a cavity and a central axis; a damping mass arranged within the cavity and movable radially with respect to the central axis and relative to the tubular element; an adapter having a rear part fixed to the tubular element, and a front part for connection to an end effector of the tool assembly, the rear part comprising an opening, and the damping mass is at least partly received in the opening with a radial clearance; and an elastic element positioned between the adapter and the damping mass, the elastic element being arranged to support the damping mass and to damp radial vibrational movements of the damping mass relative to the tubular element, and the elastic element comprising a front surface substantially perpendicular to the central axis and a rear surface substantially perpendicular to the central axis.
    Type: Application
    Filed: March 31, 2020
    Publication date: April 13, 2023
    Applicant: MAQ AB
    Inventor: Qilin FU
  • Patent number: 11458544
    Abstract: Rotatable assembly (10) having one end (12) adapted to be secured to a rotatable support for rotating the rotatable assembly (10) about a rotational axis (28), the rotatable assembly (10) comprising: a main body (18) having a cavity (56); a damping mass (38) arranged within the cavity (56) and movable in radial directions (30), substantially perpendicular to the rotational axis (28), relative to the main body (18); a damping structure (36) arranged to support the damping mass (38) relative to the main body (18) and arranged to damp vibrational movements of the damping mass (38) relative to the main body (18) in the radial directions (30); wherein the damping structure (36) comprises a plurality of spring elements (40); and wherein each spring element (40) has a flat appearance.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: October 4, 2022
    Assignee: MAQ AB
    Inventors: Qilin Fu, Cornel-Mihai Nicolescu, Amir Rashid
  • Publication number: 20210291277
    Abstract: Rotatable assembly (10) having one end (12) adapted to be secured to a rotatable support for rotating the rotatable assembly (10) about a rotational axis (28), the rotatable assembly (10) comprising: a main body (18) having a cavity (56); a damping mass (38) arranged within the cavity (56) and movable in radial directions (30), substantially perpendicular to the rotational axis (28), relative to the main body (18); a damping structure (36) arranged to support the damping mass (38) relative to the main body (18) and arranged to damp vibrational movements of the damping mass (38) relative to the main body (18) in the radial directions (30); wherein the damping structure (36) comprises a plurality of spring elements (40); and wherein each spring element (40) has a flat appearance.
    Type: Application
    Filed: August 31, 2016
    Publication date: September 23, 2021
    Applicant: MAQ AB
    Inventors: Qilin FU, Cornel-Mihai NICOLESCU, Amir RASHID
  • Publication number: 20210262544
    Abstract: Mass damper device comprising a tubular housing having a first and a second longitudinal end; at least one damping mass which is received in the tubular housing with a circumferential clearance; a first resilient element and a second resilient element. At least one end closure is arranged at the first or second longitudinal end. The housing and the end closure have cooperating mounting surfaces which define a longitudinal mounting position of the first and second end closures. The mounting surfaces are arranged such that the first and second resilient elements are compressed between the damping mass and the end closure, when the first and second end closures have been mounted, at the longitudinal mounting position, to the housing.
    Type: Application
    Filed: March 5, 2021
    Publication date: August 26, 2021
    Applicant: MAQ AB
    Inventor: Qilin FU
  • Publication number: 20210039172
    Abstract: Mass damper for a cutting tool, the mass damper comprising at least one damping mass; and at least one spring element arranged to support the damping mass, wherein the spring element comprises a nanostructure with a structural size of 100 nm or less in at least one dimension. A cutting tool comprising the damping mass is also provided.
    Type: Application
    Filed: February 28, 2018
    Publication date: February 11, 2021
    Applicant: MAQ AB
    Inventors: Qilin FU, Cornel-Mihai NICOLESCU, Amir RASHID