中文：图纸解读与配刀方案
本文围绕 304 stainless eccentric clamp hub CNC offset bore radial thread groove tooling 展开。零件特征包括two controlled faces, an eccentric precision bore, a retaining groove, radial threaded holes, outside profile and break-edge chamfers。文章重点不是泛泛介绍 CNC 加工，而是把图纸要求转化为夹具、配刀、参数、工序和检测方案。
建议以the primary face datum, bored nest and keyed angular stop作为核心基准，夹具方案为：finish the primary faces first, locate on a bored nest and use a keyed angular stop for repeatable radial-hole orientation。配刀可采用：a variable-helix carbide end mill, short boring tool, necked groove mill, carbide thread mill and small chamfer mill。粗加工、半精加工和精加工应分开，关键尺寸在零件刚性最稳定的状态下完成。检测应确认bore size, eccentricity, groove width and position, radial thread orientation, face runout and burr condition，并重点关注毛刺、变形、刀具磨损和重复装夹误差。
