钱佳立,袁巨龙,陆惠宗.适用于小光斑覆盖光学检测的球体表面全展开方法研究[J].表面技术,2017,46(10):277-283.
QIAN Jia-li,YUAN Ju-long,LU Hui-zong.Sphere Full Unfolding Method Applicable to Optical Inspection with Small Spot Coverage[J].Surface Technology,2017,46(10):277-283 |
| 适用于小光斑覆盖光学检测的球体表面全展开方法研究 |
| Sphere Full Unfolding Method Applicable to Optical Inspection with Small Spot Coverage |
| 投稿时间：2017-03-01 修订日期：2017-10-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2017.10.041 |
| 中文关键词: 轴承球体 表面质量 光学检测 展开机构 虚拟仿真 全覆盖检测 |
| 英文关键词:bearing balls surface qualities optical inspection unfolding device simulation complete coverage inspection |
| 基金项目:浙江省科技厅公益技术应用研究项目（2015C31053） |
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| 中文摘要: |
| 目的 精密轴承性能与轴承球体表面质量密切相关，表面的精密快速检测对于保证轴承球体质量非常重要，因而提出一种适用于在线光学检测的新球体全展开方法。方法 分析目前已提出的几种球体全展开方法，并指出它们在实际应用中的不足，对新的展开机构的展开原理进行分析，并进行了理论分析推导。建立了新的展开机构模型，通过Adams软件虚拟仿真，并通过设定不同的仿真参数，探究不同参数对球体全表面展开检测轨迹的影响。将子午线检测和螺旋线检测时光斑的覆盖率做了对比。结果 新机构可实现球体均匀全覆盖展开，适于激光散射和干涉这种光斑面积较小的检测方法，全覆盖时间受进动和转动速度的影响。进动速度一定时，主轴转动速度越大，螺旋线间距越大，不影响全覆盖时间；主轴转动速度一定时，进动速度越大，螺旋线间距越小，全覆盖时间越短。在仿真时间为15 s、主轴转动速度为400 (°)/s的情况下，得到最优进动速度为12 (°)/s。结论 对于新的球体展开机构，通过对转动和进动速度以及聚焦位置的调整，可实现对不同直径球体表面的均匀全覆盖检测。 |
| 英文摘要: |
| The performance of a high precision bearing is closely related to surface quality of the bearing balls. Surface precision rapid detection is critical in ensuring quality of bearing balls, hence a new sphere full unfolding method applicable to in-situ optical inspection was proposed. Several sphere full unfolding methods having been proposed in recent published journals were analyzed, their shortcomings in practical applications were pointed out, unfolding principle of new unfolding device was analyzed, and theoretical analytical derivation was done. A model was developed for the new unfolding device. Adams simulation was carried out for the model. The influence of different parameters on inspection trajectory of sphere full unfolding was investigated by setting different simulation parameters. The coverage rates of meridian inspection and spiral inspection were compared. The new unfolding device could achieve full unfolding of a sphere with uniform coverage. Such device was well suited for inspection methods with small optical spots, such as in laser scattering and laser interference. The full coverage time was affected by precession velocity and rotational speed. Provided with constant precession velocity, the higher the rotational speed of main axis was, the higher the spiral interval was, full coverage time remained the same. Provided with constant rotational speed of main axis, the higher the precession velocity was, the lower the spiral interval was, the shorter the full coverage time was. Provided with simulation time of 15 s, rotational speed of main axis of 400 (°)/s, the optimum precession speed was 12 (°)/s. For the new sphere unfolding mechanism, spheres of different diameters can be inspected completely with uniform coverage by adjusting rotational speed and precession velocity, as well as focusing position. |
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