Laser Engraving Head Counterweight Layout for Vibration Damping
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Solution Overview
Problem
Conventional laser engraving machines require heavy, high-strength metal construction to maintain rigidity and prevent vibration during the engraving process, limiting the use of lighter materials and potentially compromising image resolution.
Innovation Solution
A novel arrangement of X and Y axis tool support structures with a counter-weighted X-axis laser drive, where a second laser acts as a counterweight to the primary laser, moving in opposite directions to dampen vibrations and increase structural rigidity, allowing for the use of lighter materials while maintaining high resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If heavy, high-strength metal construction is used to maintain rigidity and prevent vibration, then structural rigidity and image resolution are improved, but device weight and material cost increase
Solution Approach 1:
The patent applies counterweight by positioning the laser head at the center of the X-axis beam, creating a balanced structure where the laser head's weight is counteracted by the symmetric arrangement of the X-axis beam supports. This balancing approach reduces the need for overly heavy construction materials while maintaining structural rigidity and minimizing vibrations during operation.
2Length of moving object
If Y-axis beams are placed far apart to provide maximum translation capability, then laser tool translation range is improved, but structural rigidity deteriorates
Solution Approach 1:
The patent resolves the contradiction between translation range and structural rigidity by introducing a third dimension - vertical positioning. The laser head is positioned at the center of the X-axis beam in the vertical dimension, allowing the Y-axis beams to be spaced optimally for both translation capability and structural support. This multi-dimensional arrangement enables maximum translation while maintaining rigidity through proper structural distribution.
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
This configuration enhances structural rigidity, enabling the use of lighter materials while significantly reducing vibrations and improving image resolution during the engraving process.
Implementation Method 1
a counter-weighted X-axis laser drive, where a second laser acts as a counterweight to the primary laser, moving in opposite directions to dampen vibrations
Data Source
Figure 1~2
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AI summary
A laser engraving machine (24) with a three-point suspension system and an inverted X- Y axis support system wherein the X-axis beam (18) is to and mounted below the Y-axis beams (20, 22) and the Y-axis beams (21, 22) are mounted inwardly of the outer ends of the X-axis (18) beam and are structurally integrated with the machine housing. In addition, a counterweight (13) is added to the drive belt for the laser tool (10) to eliminate vibration during rapid reciprocal movement of the tool (10) during an engraving process.