我厂在加工图1零件时,在车床上先加工出φ45H 8孔和端面A,作为车削另一端面B的定位基准。在夹具体上装一个短销2(图2),限制零件4转动。车削时装上零件,用主编角ψ=90°,刃倾角λ=0的外圆车刀车端 I plant processing parts in Figure 1, the first machined in the lathe φ45H 8 holes and the end face A, as the other end of turning B positioning benchmark. A short pin 2 (FIG. 2) is mounted on the clamp body to limit the rotation of the part 4. Turning fashion parts, with the main editor angle ψ = 90 °, cutting edge angle λ = 0 outside turning lathe