Machining device for machining a workpiece and a method thereof
AssigneeModig Machine Tools AB
InventorDavid Modig
Life of this patent
Estimating the term…
Abstract
A machining device is provided. The machining device includes a trunnion table adapted to hold a workpiece and arranged to pivot around a pivot axis using a pivoting motor. The pivot axis is parallel to a horizontal plane. A spindle is adapted to hold a cutting tool directed upwards and arranged to be moved in a plane parallel to the horizontal plane by a spindle transporting device. A trunnion table transporting device is adapted to vertically transport the trunnion table towards and away from the cutting tool, such that in a cutting state, chips cut from the workpiece are removed from the workpiece by gravity.
Claims18
A machining device comprising:
- a stationary support having a side structure and a top portion disposed at an upper end of the side structure;
- a trunnion table coupled to the side structure of the stationary support, the trunnion table having a mounting surface adapted to hold a workpiece and arranged to pivot relative to the stationary support around a pivot axis by means of a pivoting motor, wherein the pivot axis is parallel to a horizontal plane and the mounting surface of the trunnion table is spaced apart from the pivot axis, such that the mounting surface is configured to revolve around the pivot axis at a distance;
- a spindle adapted to hold a rotary cutting tool directed continuously upwards, the spindle arranged to be moved in a plane parallel to the horizontal plane by a spindle transporting device;
- and
- a trunnion table transporting device adapted to vertically transport the trunnion table relative to the stationary support towards and away from the rotary cutting tool;
- wherein the top portion of the stationary support includes an opening, and the trunnion table is configured to selectively align the mounting surface with the opening in an upward-facing orientation such that the mounting surface is accessible for loading and unloading the workpiece through the opening.
A method for machining a workpiece using a machining device comprising a stationary support having a side structure and a top portion disposed at an upper end of the side structure, a trunnion table coupled to the side structure of the stationary support and holding the workpiece, and a spindle holding a rotary cutting tool directed continually upwards, the method comprising:
- machining the workpiece from below by applying the cutting tool to the workpiece by:
- moving the spindle in a horizontal plane along a first and a second direction, wherein the first direction is orthogonal to the second direction;
- moving the trunnion table vertically thereby moving the workpiece;
- and
- tilting the workpiece by pivoting the trunnion table relative to the stationary support around a pivot axis, wherein the pivot axis is parallel to the first direction;
- and
- unloading the workpiece from the trunnion table by:
- moving the trunnion table to align the workpiece with an opening disposed in the top portion of the stationary support;
- and
- removing the workpiece from the trunnion table through the opening.
Dependencies are inferred from the claim text.