基于面结构光投影法的刀具几何参数测量研究
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河北工业大学机械工程学院天津300130

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TN216TH741

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Research on tool geometry parameter measurement based on surface structured light projection
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School of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, China

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    摘要:

    先进制造技术中高效切削刀具的几何形状与几何参数是否合理直接影响刀具的使用寿命以及产品的加工质量,针对这个问题,采用面结构光投影法对高效切削刀具的几何参数进行非接触式测量,此方法不仅能够准确重建出用于其几何参数测量的刀具三维模型,还能够直观反映刀具表面有无缺陷。主要对面结构光投影法基本思想、测量系统数学模型和点云旋转拼接进行了研究,并给出了刀具转台坐标系和CCD摄像机成像坐标系之间的变换关系,并对直柄麻花钻进行测量实验,实际结果测量结果的比较表明面结构光投影法可有效对刀具进行测量,且测量精度较高。

    Abstract:

    The geometry shape and parameters of highefficiency cutting tool directly affects the tool’s service life and product’s quality in advanced manufacturing technology. Thus, a noncontact measurement method based on surface structured light projection is adopted for geometry parameters of highefficiency cutting tool. This method can not only reconstruct the 3D model of the tool used for measure its geometry parameters, but also can directly detect the defects of the tool surface. This work mainly focuses on the basic ideal of surface structured light projection, mathematical model of measurement system and point cloud rotation registration. The transformation relation between tool turntable coordinate system and CCD camera imaging coordinate system is built. Meanwhile, the measure experiments on was carried out, the experimental results on straight shank twist drill show that the surface structured light projection is effective and precise in the tool measurement.

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刘今越,刘佳斌,贾晓辉,王宁,李铁军.基于面结构光投影法的刀具几何参数测量研究[J].仪器仪表学报,2017,38(5):1276-1284

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  • 在线发布日期: 2017-07-10
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