Laser Groove Machining Alignment for Tilt-Corrected Precision
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Solution Overview
Problem
Existing workpiece machining devices face issues with precision due to misalignment of machining units, leading to deviations in machining positions when grooves and areas between grooves are machined simultaneously using laser beams.
Innovation Solution
A workpiece machining apparatus with a table, machining units, a feed drive unit, and a correction unit that corrects tilt in the array of machining units, ensuring accurate alignment along a planned machining line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If two machining units are arranged in a row along a street to machine grooves and areas between grooves simultaneously, then productivity is improved, but manufacturing precision deteriorates due to misalignment and tilt of the machining units
Solution Approach 1:
The patent applies preliminary action by performing tilt correction of the machining units before the actual machining process. The control unit adjusts the tilt of the first and second machining units relative to the planned machining line, ensuring they are properly aligned beforehand. This preliminary alignment correction prevents machining position deviations and maintains high precision while enabling simultaneous dual-process machining, thus resolving the contradiction between improved productivity and maintained manufacturing precision
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables high-precision machining of workpieces by correcting tilt and ensuring accurate alignment of machining units, thereby improving the precision of grooves and areas between grooves.
Implementation Method 1
machine two grooves along a planned machining line by radiating a pair of first laser beams from the first machining unit with respect to the table relatively fed in the X direction
Implementation Method 2
machine an area between the two grooves by radiating a second laser beam from the second machining unit between the two grooves machined by the first machining unit
Data Source
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AI summary
A workpiece machining apparatus includes a table configured to hold a workpiece, a machining unit having a first machining unit and a second machining unit arrayed in an X direction and configured to machine two grooves along a planned machining line by radiating a pair of first laser beams from the first machining unit with respect to the table relatively fed in the X direction along the planned machining line set in a workpiece and machine an area between the two grooves by radiating a second laser beam from the second machining unit between the two grooves machined by the first machining unit, a feed drive unit configured to apply a feed operation in the X direction and a Y direction orthogonal to the X direction by relatively moving the table and the machining unit in the X direction and the Y direction, a correction unit configured to correct a tilt of an array of the first machining unit and the second machining unit for the planned machining line, and a control unit configured to control a tilt correction process of the correction unit.