Method for machining workpieces and machine tool for carrying out the method
AssigneeSTAMA Maschinenfabrik GmbH
InventorsKai GÜNTHER, Thomas BOEHM, Frank MUELLER
Life of this patent
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Abstract
A machine tool has a clamping device for clamping in workpieces to be machined, a work spindle which is movable relative to the clamping device, a tool magazine wherein tools for machining the workpieces are held available, the tools being selectively clamped into the work spindle, and a spindle gripper to be selectively clamped into the work spindle and being self-holding in its gripping position, said spindle gripper being held available in the tool magazine and being movable between a transfer position to the work spindle and an unloading station in which the spindle gripper releases a work piece remnant received from the clamping device.
Claims13
A method for machining workpieces on a machine tool,
- said machine tool comprising a clamping device for clamping said workpieces, a tool magazine for storing a plurality of tools for machining said workpieces, a work spindle which is movable relative to said clamping device and into which at least one tool from said plurality of tools can be clamped, and a spindle gripper for gripping remnants, which spindle gripper is self-holding when being in its gripping position, said spindle gripper captively holding a received remnant when being in its gripping position,
- said method comprising the steps of:
- a) clamping a workpiece into said clamping device in such a way that at least a workpiece portion of the workpiece projects beyond the clamping device, said workpiece portion being to be machined,
- b) clamped at least one of said plurality of tools into said work spindle and machining said workpiece portion with said tool clamped into said work spindle,
- c) separating the workpiece portion when machined from said workpiece such that a residual workpiece remains in the clamping device, and
- f) disposing of the residual workpiece remaining in the clamping device in case the residual workpiece is a remnant, by
- g) clamping said spindle gripper into said work spindle,
- h) moving said work spindle in such a way that said spindle gripper can grip said remnant,
- i) gripping said remnant by said spindle gripper,
- k) releasing said remnant from said clamping device, and
- l) moving said work spindle to deposit said spindle gripper holding said remnant for subsequent disposal of the remnant from said spindle gripper.
A machine tool comprising a clamping device for clamping in workpieces to be machined, a work spindle which is movable relative to said clamping device, a tool magazine in which tools for machining the workpieces are held available, wherein the tools can be selectively clamped into the work spindle, and a spindle gripper which can be selectively clamped into said work spindle and which is self-holding in its gripping position, said spindle gripper being held available in the tool magazine and being movable between a transfer position to the work spindle and an unloading station in which the spindle gripper releases a remnant received from the clamping device.
Dependencies are inferred from the claim text.