摘要
以某薄壁曲面零件为例,介绍了应用拍照式三维扫描仪检测工件曲面轮廓偏差及厚度。通过引入特制工装,无需在产品上粘贴标记点,即可使用三维拍照测量机获取产品工程模型,避免了多余物的产生。将工程模型与理论模型进行最佳拟合,通过数模对比,最终实现复杂自由曲面误差评定及厚度检测。结果证明,该方法准确有效,为工程测量人员解决同类问题提供有利依据。
This article takes a curved thin-wall part as an example, and introduces the 3 d scanner for detecting the surface profile error and thicknesses of part. The special tooling is introduced to eliminate the need to paste marks on products, so the product engineering model can be obtained by using a 3 d camera measuring machine, which avoids the production of reminders. The engineering model is best fitted with the theoretical model, and the error evaluation and thickness detection of the complex free surface are finally realized through mathematical model comparison. The results show that this method is effective and provides a favorable basis for engineering surveying personnel to solve similar problems.
作者
刘延平
郭国
朱亚蓉
韩晋
孙振
Liu Yanping;Guo Guo;Zhu Yarong;Han Jin;Sun Zhen(Tianjin Long March Rocket Aerospace Manufacturing Co., Ltd., Tianjin 30046)
出处
《航天制造技术》
2018年第3期68-70,共3页
Aerospace Manufacturing Technology
关键词
三维扫描仪
曲面轮廓偏差
厚度
three-dimensional scanner
surface profile error
thickness
