Laser Boring Slag Removal Using Workpiece Transfer Positioning
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Solution Overview
Problem
Existing laser machining tools face issues with slag removal during boring machining on plate-shaped workpieces, as slag can get obstructed by protrusions on the table, leading to defective machining and potential damage to molds or taps.
Innovation Solution
A laser machining tool with a transporter and a rod-shaped tool that positions the workpiece to allow slag to be forced out from below the table, using an annular structure and controller for precise slag removal without damaging the protrusions, and optionally performing secondary machining after slag removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rod-shaped tool is used to force out slag from a hole formed by boring machining on a plate-shaped workpiece supported by a table with protrusions, then slag removal is achieved, but the protrusions may be damaged by impact
Solution Approach 1:
The patent introduces a transporter to move the workpiece in the horizontal plane, creating a new spatial dimension for slag removal. Instead of forcing slag out vertically from above the table (which damages protrusions), the workpiece is transported to position the hole over a discharge space below the table level, allowing slag to be removed downward without impacting the protrusions.
Solution Approach 2:
The patent extracts the harmful impact force from the slag removal process by separating the forcing-out action from the discharge location. The rod-shaped tool forces slag out at the current position without direct impact on protrusions, while the transporter simultaneously moves the workpiece to a discharge position below the table where slag can be safely ejected without damaging any components.
2Object-affected harmful factors
If the workpiece is transported to position the hole at a discharge space below the table for slag removal, then protrusions are protected from damage, but machining time increases due to additional transport and positioning
Solution Approach 1:
The patent merges the slag removal operation with the workpiece transport operation. The transporter performs dual functions: moving the workpiece to the correct machining position and subsequently moving it to the discharge position. By combining these movements and integrating the rod-shaped tool operation into the existing machining cycle, the patent minimizes additional time while protecting protrusions.
3Manufacturing precision
If slag is forced out by a rod-shaped tool from a hole, then machining defects are prevented, but the process cannot be applied when the hole is directly above a protrusion
Solution Approach 1:
The patent introduces dynamic positioning capability through the transporter, allowing the system to adapt to different hole positions on the workpiece. Instead of being constrained to fixed positions, the workpiece can be dynamically moved to optimal discharge positions below the table regardless of where the hole is located on the workpiece surface, enabling universal application across all hole positions.
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
The solution reliably removes slag without damaging the table protrusions, reduces the time required for slag removal, and allows for secondary machining without interference, effectively preventing machining defects and damage.
Implementation Method 1
a laser head to perform boring machining by irradiating a laser beam along an outline of a hole to be formed in the workpiece
Data Source
AI summary
A laser machining tool that performs laser machining on a plate-shaped workpiece includes a table including protrusions and supporting the workpiece on upper ends of the protrusions, a laser head to perform boring machining by irradiating a laser beam along an outline of a hole to be formed in the workpiece on the table, a transporter to transport the workpiece that has undergone laser machining, and a rod-shaped tool to force out slag remaining in the hole. The workpiece is transported by the transporter until the hole is at a processing position including a discharge space for the slag, outside and below the table as seen in a plan view, and the slag remaining in the hole is forced out by the rod-shaped tool, at the processing position.