Beam Processing Head Anti-Twist Mechanism
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Solution Overview
Problem
Existing beam machining devices, particularly laser beam machining devices, face issues with the twisting of supply lines due to rotational movements, leading to inaccuracies, contamination, and increased complexity, which affects cutting quality and dynamics.
Innovation Solution
A beam processing device with a rotational degree of freedom relative to a second platform parallel to the first axis of rotation, combined with a translational degree of freedom, and an anti-twist device that prevents rotation of the beam processing head, ensuring the supply line remains stationary and preventing twisting, along with a counterweight system for balancing and minimizing disruptive forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the beam processing head is rotated around the first axis of rotation to enable full rotation, then the rotational freedom is improved, but the supply line twists and becomes entangled
Solution Approach 1:
The patent extracts the rotational degree of freedom from the beam processing head itself and relocates it to the second platform. The beam processing head is now rotationally fixed relative to the second platform, while the second platform rotates relative to the first platform. This separation allows the beam processing head to maintain a stable supply line connection while still achieving full rotational capability through the platform's rotation.
Solution Approach 2:
The second platform serves as an intermediary between the first platform and the beam processing head. It absorbs the rotational movement, allowing the beam processing head to remain stationary relative to the supply line while still achieving the desired rotational positioning through its connection to the rotating second platform.
2Manufacturing precision
If the beam processing head is positioned close to the rotary axis to improve positioning precision, then the manufacturing precision is improved, but the drive unit located at the rotary axis causes cable twisting
Solution Approach 1:
The patent extracts the rotational drive functionality from the beam processing head assembly and places it on the first platform, which rotates the second platform. This allows the beam processing head to be positioned close to the rotary axis for precise positioning without the drive unit and its associated cables being subject to twisting during rotation.
3Reliability
If a rotating connecting structure is used to feed the laser beam to prevent cable twisting, then the cable entanglement is reduced, but the device complexity and cost increase
Solution Approach 1:
The patent extracts the rotational movement from the beam processing head and connecting structures, placing it instead on the second platform which rotates relative to the first platform. This eliminates the need for rotating connectors, telescopic guides, or other complex mechanisms at the beam processing head, simplifying the overall device structure while maintaining cable integrity.
4Adaptability or versatility
If moving parts are included in the beam path to enable rotation, then the rotational capability is improved, but the beam imaging and guidance accuracy deteriorate
Solution Approach 1:
The patent extracts all moving parts from the beam path by placing the rotational mechanism on the first platform rather than within the beam processing head or beam transmission path. The beam processing head and its optical components remain stationary relative to the beam path, eliminating sources of inaccuracy while preserving full rotational capability through the platform's rotation.
Data Source
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AI summary
Beam processing device, preferably a laser beam processing device or a fluid jet-processing device, comprises a first platform (1) and a second platform (2) movable with respect to the first platform, and a beam processing head (3), which is mounted on the second platform. The second platform, with respect to the first platform, has a rotational degree of freedom around a first rotational axis (11). A beam outlet axis is defined by the beam processing head, along an outlet during beam processing. The beam processing head, with respect to the second platform, has a rotational degree of freedom. Beam processing device, preferably a laser beam processing device or a fluid jet-processing device, comprises a first platform (1) and a second platform (2) movable with respect to the first platform, and a beam processing head (3), which is mounted on the second platform. The second platform, with respect to the first platform, has a rotational degree of freedom around a first rotational axis (11). A beam outlet axis is defined by the beam processing head, along the outlet during the beam processing. The beam processing head, with respect to the second platform, has a rotational degree of freedom around a second rotational axis, which is parallel to the first rotational axis of the rotational degree of freedom of the second platform, and coincides with the beam outlet axis.