| 李震， 王伟明， 李庆忠.光学球罩真空吸附装夹结构设计[J].轻工机械,2023,41(5):89-95 |
| 光学球罩真空吸附装夹结构设计 |
| Design of Vacuum Adsorption Clamping Structure for Optical Dome |
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| DOI：10.3969/j.issn.1005 2895.2023.05.013 |
| 中文关键词: 光学球罩 装夹结构 真空吸附 装夹稳定性 Workbench软件 |
| 英文关键词:optical dome clamping structure vacuum adsorption clamping stability Workbench |
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| 中文摘要: |
| 为了改善光学球罩表面加工过程中效率低、装夹繁琐等问题，课题组设计了一种针对光学球罩的真空吸附装夹结构。选用“2转动+1摆动+微量进给”的加工工艺对光学球罩的内外表面进行磨削和抛光，并设计了中空的转台结构；分析球罩装夹时所需要的真空负压并验证在此真空负压下球罩在加工过程中不会出现滑移；运用Workbench软件仿真球罩 装夹头模型在加工过程中的变形量。仿真结果表明：在相同参数下内装夹头模型的变形量大于外装夹头；作为装夹头材料，45钢抗变形效果优于铝合金；模型的变形量随磨削力的增大而增大；真空负压及砂轮尺寸对变形量影响较小。该研究有助于提高球罩表面加工的质量和效率。 |
| 英文摘要: |
| To improve the low efficiency and cumbersome clamping process in the surface processing of optical domes, a vacuum adsorption clamping structure for optical domes was designed.The "two rotations + one swing + micro feed" processing technology was used to grind and polish the inner and outer surfaces of the optical dome, and a hollow turntable structure was designed.The vacuum negative pressure required for clamping the dome was analyzed and verified, and it was confirmed that the dome would not slip during the processing under this vacuum negative pressure. Workbench software was used to simulate the deformation of the dome clamping chuck model during the processing.The simulation results show that the deformation of the inner clamping chuck model is larger than that of the outer clamping chuck model under the same parameters. As a chuck material, the deformation resistance of 45 steel is better than that of aluminum alloy. The deformation of the model increases with the increase of grinding pressure, while the vacuum negative pressure and the size of the grinding wheel haveless effect on the model deformation. This research is helpful to improve the quality and efficiency of dome surface processing. |
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