Traditional inspection of freeform surfaces via three-axis or three ＋ two-axis CMM mainly works in a point-by-point manner where for each inspection point, the stylus of CMM has to approach to and then retract from the surface of inspection, which inevitably drags down (often substantially) the inspection efficiency. Recently, a new inspection apparatus called five-axis inspection machine has emerged, on which the stylus tip can continuously sweep on the part surface and the inspection efficiency can thus be tremendously improved. The crux in using this new inspection technology is how to plan an efficient five-axis inspection path (including both the position and orientation of the stylus). In this paper, we present a new type of five-axis inspection path generation strategy for the inspection of a general freeform surface. Based on the proposed index called Surface Sweep Rate (SSR), an algorithm is designed to partition the surface into a single spiral strip, which maximizes the overall SSR. Then, for this single spiral strip, a five-axis inspection path is generated that takes into consideration the key constraints such as the required smoothness of the probe head trajectory, the sampling density, and the collision-free condition. Physical inspection experiments of our proposed strategy are conducted on two typical freeform surfaces, and the results convincingly confirm the feasibility, effectiveness, and advantages of our new solution.

传统的通过3轴或3 ＋ 2轴三坐标测量机对自由曲面的检查主要是逐点进行，其中对于每个检查点，三坐标测量机的测针必须接近然后从检查表面退回，不可避免地会（通常会大大降低）检查效率。近来，出现了一种称为五轴检查机的新检查设备，在该设备上，测针尖端可以连续扫过零件表面，从而可以大大提高检查效率。使用这种新检查技术的关键是如何规划有效的五轴检查路径（包括笔的位置和方向）。在本文中，我们提出了一种用于检查一般自由曲面的新型五轴检查路径生成策略。基于提议的称为表面扫描速率（SSR）的索引，设计了一种算法来将表面划分为单个螺旋带，从而最大化整体SSR。然后，对于该单螺旋带，生成一条五轴检查路径，其中考虑了关键约束，例如所需的探头轨迹平滑度，采样密度和无碰撞条件。我们提出的策略的物理检查实验是在两个典型的自由曲面上进行的，结果令人信服地证实了我们新解决方案的可行性，有效性和优势。生成一条五轴检查路径，其中考虑了关键约束，例如所需的探头轨迹平滑度，采样密度和无碰撞条件。我们提出的策略的物理检查实验是在两个典型的自由曲面上进行的，结果令人信服地证实了我们新解决方案的可行性，有效性和优势。生成一条五轴检查路径，其中考虑了关键约束，例如所需的探头轨迹平滑度，采样密度和无碰撞条件。我们提出的策略的物理检查实验是在两个典型的自由曲面上进行的，结果令人信服地证实了我们新解决方案的可行性，有效性和优势。