怎样测量单刃铰刀的外径尺寸

• 作 者: 丁任祥
• 出 处: 金属加工(冷加工)
• 发表日期: 1965年10期
• 关键词: 铰刀 外径尺寸 芯棒 五刃 口环 公差 最大尺寸 最大极限尺寸 开口处 辅助测量

制造三刃或五刃的单刃铰刀时,外径尺寸不易测量。我们做了一个辅助测量工具如图1。圆环1的内孔与芯棒2之间是研磨过的,它们为滑配合。芯棒的外径尺寸为铰刀的最大尺寸(上公差),研好之后,在圆环上割一八字形开口,把要测量的铰刀1插入开口环2内,开口处恰好露出一个齿(图2)。用杠

When making three-edged or five-edged single-edged reamers, the outer diameter is not easy to measure. We have done an auxiliary measurement tool as shown in Figure 1. Between the inner ring of the ring 1 and the mandrel 2 is ground, they are slip fit. The outer diameter of the mandrel is the maximum size (upper tolerance) of the reamer, and after grinding, cut a zigzag opening in the ring, inserting the reamer 1 to be measured into the split ring 2 with exactly one tooth (figure 2). With bars