机床大修时,镶条零件几乎都要更换。55°镶条零件的工作图,通常只标有大端的高度h尺寸和厚度b尺寸。而修理技术员在确定新镶条的尺寸,特别是编制工艺或刨工加工时,却必须知道镶条的宽度尺寸L。为避免繁琐的运算,提高工作效率,特设计了如图1所示的55°镶条专用计算尺,以求解L尺 When the machine is overhauled, the trim parts are almost always replaced. Working drawings of 55 ° inlay parts are usually marked with a large end only with a height h dimension and a thickness b dimension. However, the repair technician must know the width dimension L of the insert when determining the size of the new insert, especially in the preparation or planing process. In order to avoid tedious operation, improve work efficiency, specially designed as shown in Figure 1 55-inch special slide rule, in order to solve L-foot