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SIR 是一家义大利的机器制造商，专精于机器手臂的制造，他们采用功能强大的PatMax 工具设计了一款特殊的机器手臂，以用于磨刀与刀形修整。这个应用的特性在于能在不知刀片原来形状的情况下，进行不同类型刀具的翻新处理。为了进行精确的磨 刀，不可能粗略地推算出刀具的使用程度，或是假设计算好原刀具磨刀的路径起点。刀具通常会以手工方式进行磨光处理，因此，理论上的形状与实际形状并不一 致。鉴于此原因，视觉系统的使用就变得更加需要，这是为了能即时地推算出每把刀具的正确轮廓。