Machining center
AssigneeDoosan Machine Tools Co., Ltd.
InventorJae-doo Sim
Life of this patent
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Abstract
Disclosed is a machining center. The machining center includes a bed structure deflected along a deflection curve by a load distribution thereon, a palette structure secured to a first end portion of the bed structure, a spindle assembly to which a machining tool is secured and secured to a second portion of the bed structure, a table movably secured to the bed structure such that a table loading is applied to a load point of the bed structure and an automatic aligner automatically detecting first and second installation errors of the table and the spindle assembly and automatically correcting the first and the second installation errors such that the workpiece and the tool are aligned with each other. The misalignment between the workpiece and the tool is automatically detected and corrected in the machining center.
Claims18
A machining center comprising:
- a bed structure deflected in a longitudinal direction along a deflection curve by a load distribution thereon and having a pair of position sensors detecting bed heights at a minimal deflection point and a maximal deflection point, respectively;
- a palette structure having a palette for selectively holding a standby workpiece and secured to a first end portion of the bed structure such that a palette loading is applied to the first end portion of the bed structure;
- a spindle assembly to which a machining tool is secured and secured to a second end portion opposite to the first end portion of the bed structure such that a spindle loading is applied to the bed structure;
- a table movably secured to the bed structure such that a manufacturing workpiece is secured to the table and a table loading is applied to a load point of the bed structure;
- and
- an automatic aligner automatically detecting a first installation error of the table and a second installation error of the spindle assembly and automatically correcting the first and the second installation errors such that the machining workpiece and the machining tool are aligned with each other,
- wherein the automatic aligner includes a position detecting unit detecting the bed heights of the bed structure and process positions of the bed structure at which the table is located, an error calculating unit for calculating the installation errors of the table and the spindle assembly according to the bed heights and the process positions and a driving unit for driving at least one of the table and the spindle assembly to correct the installation errors of the table and the spindle assembly.
Dependencies are inferred from the claim text.