Segmented Laser Cutting Enclosure for Direct Workpiece Access
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Solution Overview
Problem
Existing protective enclosures for laser cutting machines are bulky and require a pallet shuttle system for loading and unloading workpieces, increasing operational costs and time.
Innovation Solution
A protection system that encloses only the laser torch head, allowing direct loading and unloading of workpieces and reducing the overall volume of the laser cutting machine, while maintaining safety through integrated safety switches and brush assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protective enclosure covers the entire laser cutting machine to form a chamber, then safety protection is improved, but the machine volume increases and operational efficiency decreases
Solution Approach 1:
The protective enclosure is divided into multiple segments: a fixed base enclosure and a movable protective shield that can be independently positioned. This segmentation allows the enclosure to cover only the laser torch head area during operation, rather than the entire machine, reducing overall volume while maintaining safety where needed.
Solution Approach 2:
The protective shield is designed to be movable rather than fixed, allowing it to dynamically adjust its position between covering and uncovering states. This enables the system to provide protection during laser operation while allowing easy access for loading and unloading workpieces, eliminating the need for bulky fixed enclosures.
2Reliability
If a protective enclosure forms a complete chamber, then safety protection is improved, but operational efficiency and loading/unloading speed worsen
Solution Approach 1:
The movable protective shield can be quickly positioned to cover or uncover the laser torch head, enabling rapid transitions between protected operation mode and workpiece access mode. This dynamic capability maintains safety during cutting while minimizing interruption time for loading and unloading operations.
Solution Approach 2:
The protective shield is pre-positioned to cover only the critical laser torch area during operation, and can be quickly moved away before workpiece handling is needed. This preliminary positioning strategy ensures safety is maintained during the actual cutting process while allowing efficient access during preparation and completion phases.
3Reliability
If a protective enclosure covers the entire machine, then safety protection is improved, but device complexity and cost increase
Solution Approach 1:
The protective system is segmented into a simple fixed base enclosure and a movable shield component, avoiding the complexity of fully enclosing the entire machine. This segmented approach provides necessary safety protection with minimal structural complexity.
Solution Approach 2:
The movable protective shield extracts only the essential protection function for the laser torch head area, removing the unnecessary complexity of enclosing the entire machine. This extraction approach provides targeted safety protection while maintaining simplicity in the overall system design.
Data Source
AI summary
A laser cutting tool with protective enclosure assembly for manipulating a workpiece on a movable platen includes a frame, a top protection assembly, a middle protection shield, a bottom protection assembly and a laser torch head. The top protection assembly, middle protection assembly, and bottom protection assembly are removably mounted to the frame such that they form a cavity enclosing only substantially the laser torch head.