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采用支承镗孔方式加工时,由于镗杆被镗模套支承,在镗削过程中,使用常规量具(如内径表、游标卡尺或塞规等)来检测被加工孔径极为不便。为此,我们制造了图1所示的半圆瓣塞规,塞规的前节为通端;中节为止端;后节为扶持部。根据需要,还可以加工成多节直径形式。塞规之半径R=(d/2)H6 式中:d为镗杆测量孔径处的实测直径值,半圆瓣塞规材料采用T10A,热处理淬硬HRC60～62。塞规的使用方法见图2所示:将其R面紧贴镗杆,轻轻推至被加工孔口进行检测,若塞规之通端R_1能过,而止端R_2不能过,则孔为合格;若止端也能过,则孔已超
When boring boring is used, it is extremely inconvenient to inspect the diameter of the hole to be machined during boring by using conventional gauges (eg, ID gauge, vernier caliper or plug gauges) because the boring bar is supported by the boring die. To this end, we have made the semi-circular plug shown in Figure 1 plug gauge, plug gauge for the front end of the pass; the end of the middle section; According to need, can also be processed into multi-section diameter form. Plug gauge radius R = (d / 2) H6 Where: d for the measured diameter of the boring bar measured diameter value, semi-circular plug gauge material T10A, heat treatment hardened HRC60 ~ 62. Plug the use of methods shown in Figure 2: R surface close to the boring bar, gently pushed to the hole being processed for testing, if the plug gauge R_1 can pass, and the end can not be R_2, then the hole To pass; if the stop can also be over, the hole has been super