US 12,246,407 B2
Machine tools and methods of operation thereof
Michael D. Skinner, Skipton (GB); and Daniel P. Turner, Skipton (GB)
Assigned to Fives Landis Limited, Keighley (GB)
Appl. No. 16/765,098
Filed by Fives Landis Limited, Keighley (GB)
PCT Filed Feb. 26, 2018, PCT No. PCT/GB2018/050488
§ 371(c)(1), (2) Date May 18, 2020,
PCT Pub. No. WO2019/115985, PCT Pub. Date Jun. 20, 2019.
Claims priority of application No. 1720678 (GB), filed on Dec. 12, 2017.
Prior Publication US 2021/0283740 A1, Sep. 16, 2021
Int. Cl. B24B 19/12 (2006.01); B23B 5/18 (2006.01); G05B 19/18 (2006.01); G05B 19/416 (2006.01)
CPC B24B 19/125 (2013.01) [B23B 5/18 (2013.01); G05B 19/184 (2013.01); G05B 19/4163 (2013.01); B23B 2270/486 (2013.01); G05B 2219/42147 (2013.01); G05B 2219/45161 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A machine tool for machining a workpiece, the machine tool comprising:
a tool mount for carrying a tool;
a workpiece mount for carrying and rotating the workpiece about an axis of rotation;
a drive mechanism for moving at least one of the tool mount and the workpiece mount relative to the other; and
a control arrangement for controlling the workpiece mount and the drive mechanism, wherein the machine tool is configured to:
receive input data in the control arrangement, the input data defining a machining profile to be machined onto the workpiece, with the machining profile being defined in a plane perpendicular to the axis of rotation and non-circular in that plane;
calculate with the control arrangement a workpiece velocity profile corresponding to velocities at which the workpiece is to be rotated by the workpiece mount over a rotation of the workpiece during machining of the workpiece by a tool mounted in the tool mount, wherein an entirety of the workpiece velocity profile is generated only by an evolutionary algorithm; and
rotate the workpiece with the workpiece mount according to the workpiece velocity profile during machining of the workpiece by the tool mounted in the tool mount.