抛光工具的正常位移模型和补偿方法用于精密CNC抛光无球面的抛光
Yongjie Shi1, Min Su2, Qianqian Cao3
1School of Intelligent Manufacturing, Jiaxing Vocational Technical College, Jiaxing 314036, China.
Micromachines
|November 27, 2024
概括
本研究介绍了计算机数控 (CNC) 抛光系统的正常位移补偿方法. 该方法通过减少粗性和不均性,显著提高了aspheric表面质量.
科学领域:
- 制造业 工程 制造工程
- 光学工程是指光学工程.
- 材料科学 材料科学 材料科学
背景情况:
- 抛光工具的位置准确性对于无球面质量至关重要.
- 接触变形导致工具位移和抛光力变化.
- 现有的方法很难有效地解决这些错误.
研究的目的:
- 建议和验证CNC抛光系统的正常位移补偿方法.
- 为了控制抛光力,以减轻由变形引起的位置错误.
- 为了提高抛光无球元件的表面质量和均性.
主要方法:
- 分析了抛光力和工具位置之间的合.
- 根据赫茨的理论开发了一个正常位移模型.
- 在一个脱的CNC抛光系统中实施了一种补偿方法.
主要成果:
- 表面粗度从0.4微米减少到0.21微米.
- 降低了表面粗度的不均系数,从112.5%降至19%.
- 在抛光质量和均性方面表现出显著的改善.
结论:
- 拟议的正常位移补偿方法有效地增强了非球面抛光.
- 控制抛光力是补偿工具位置错误的可行策略.
- 该方法为实现更高质量和更均的无球面提供了一条途径.
相关概念视频
01:26Influence of Earth's Curvature and Atmospheric Refraction on Leveling
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During leveling, the Earth's curvature and atmospheric refraction introduce deviations in the line of sight from a true horizontal reference. When the line of sight is leveled, it remains perpendicular to the plumb line only at a single point. Beyond this, it deviates due to the Earth’s curvature, represented by the correction C. For a sight distance D, the deviation can be derived using the relationship:This relationship shows that the deviation increases quadratically with distance.
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01:21Deformations in a Transverse Cross Section
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When a material is subjected to uniaxial stress, it elongates or contracts in the direction of the applied force, and also undergoes changes in the perpendicular directions. This behavior is crucial for understanding how materials behave under stress and is governed by mechanical properties such as Poisson's ratio v, which measures the ratio of transverse strain to axial strain.
As the material stretches, it expands or contracts in orthogonal directions to the load. This phenomenon varies...
As the material stretches, it expands or contracts in orthogonal directions to the load. This phenomenon varies...
172