The invention discloses a double-station gantry combined machining system allowing automatic overturning of workpieces, which comprises a first mobile gantry machining unit, a second mobile gantry machining unit, an overturning platform, a first workpiece fixing table, a second workpiece fixing table and a guide rail, wherein the overturning platform is positioned between the first gantry machining unit and the second gantry machining unit. According to the invention, the system is highly integrated, continuous machining of a gantry machine tool is completed, the working efficiency is improved, and the machining cost of the system is reduced.

The invention relates to a machine tool (M) comprising a kinematic structure (100) that moves an electric spindle (300) in a plane perpendicular to the axis of the electric spindle (300), notable in that said kinematic structure (100) is an articulated structure comprising two articulated arms (110, 120) articulated about axes of rotation parallel to the axis of the electric spindle (300), the second end (122) of the second arm (120) accepting the electric spindle (300), the translational movement of the workpiece (P) with respect to the tool (O) of the electric spindle (300) in a linear movement parallel to the axis of the electric spindle (300) being brought about by a workpiece (P) support module (200) or by a plate support module (130).

The invention relates to a machine tool (M) comprising a kinematic structure (100) that moves an electric spindle (300) in a plane perpendicular to the axis of the electric spindle (300), notable in that said kinematic structure (100) is an articulated structure comprising two articulated arms (110, 120) articulated about axes of rotation parallel to the axis of the electric spindle (300), the second end (122) of the second arm (120) accepting the electric spindle (300), the translational movement of the workpiece (P) with respect to the tool (O) of the electric spindle (300) in a linear movement parallel to the axis of the electric spindle (300) being brought about by a workpiece (P) support module (200) or by a plate support module (130).

A tool spindle for machine tool includes a tool spindle having a front end in which a tool is mounted and installed to be rotatable, and a vibration damping device mounted in a rear end of the tool spindle to damp cutting vibration generated at the front end of the tool spindle, and including a rigid member coupled to the rear end of the tool spindle and a tuned mass member elastically supported by the rigid member.

A toothed workpiece chamfering device having a chamfering head (2) which includes a first axis of rotation (B) for rotation of a first chamfering tool (6) and a second axis of rotation (T) for rotation of a second chamfering tool (8) wherein the first and second chamfering tools are of different types and their respective material removal methods are also different from one another. Preferably, the first and second axes of rotation are not coincident with one another and in a more preferred arrangement, the first tool axis and the second tool axis are arranged perpendicularly to one another.

A toothed workpiece chamfering device having a chamfering head (2) which includes a first axis of rotation (B) for rotation of a first chamfering tool (6) and a second axis of rotation (T) for rotation of a second chamfering tool (8) wherein the first and second chamfering tools are of different types and their respective material removal methods are also different from one another. Preferably, the first and second axes of rotation are not coincident with one another and in a more preferred arrangement, the first tool axis and the second tool axis are arranged perpendicularly to one another.

A method of machining a feature in a component using a machine having a support rotatable about a rotation axis and having a cutting tool movable relative to the component, the component being mounted on the support for rotation about a central axis of the component, the method includes: determining coordinates of at least three points on a reference surface of the component, the at least three points being circumferentially offset from one another relative to the central axis; determining an angular correction to apply to the cutting tool based on the coordinates of the at least three points; and machining the feature in the component using the cutting tool angled with the angular correction.

A Computer Numerical Control (CNC) machine, including a computer numerical controller, the CNC machine comprising a tool spindle for holding and actuating a tool for contacting a workpiece; a support frame comprising at least one frame element carrying the tool spindle; at least one angle adjustment actuator, coupled to the support frame and the spindle for deflecting an angle of contact of the tool to the workpiece; a motion actuator for causing movement of the tool spindle and tool; an electronic controller for controlling the motion actuator.

A Computer Numerical Control (CNC) machine, including a computer numerical controller, the CNC machine comprising a tool spindle for holding and actuating a tool for contacting a workpiece; a support frame comprising at least one frame element carrying the tool spindle; at least one angle adjustment actuator, coupled to the support frame and the spindle for deflecting an angle of contact of the tool to the workpiece; a motion actuator for causing movement of the tool spindle and tool; an electronic controller for controlling the motion actuator.

The present invention discloses an overhead machining device based on a portable 5-DOF full parallel module. The overhead machining device based on a portable 5-DOF full parallel module comprises: a sliding table for moving a parallel module to increase the stroke of the machine tool such that the machine tool can machine large components and can also simultaneously conduct the mounting and the machining of workpieces at different stations; a CNC rotary table; and a portable 5-DOF full parallel module. The portable parallel module has a large swing angle range, can conduct the conversion between vertical and horizontal machining modes and can achieve five-face machining in one setup in cooperation with the CNC rotary table. The parallel module can move flexibly, and can machine large and complex components after mounted on the sliding table.