我厂3吨重的 Z35摇臂钻床大修精刨底座后,必须对立柱与底座的不垂直度进行铲刮修正。老工艺是先装上立柱(图6)测量,用水平仪作基准,大平台对研磨找正铲刮底座,进行多次反复装拆一吨多重的立柱。这样维修要3天,劳动量又大。在推优运动中,钳三组工人同志受到兄弟厂对平衡砂轮的圆周等分优选的启发,把 I plant 3 tons of heavy Z35 radial drilling machine overhaul fine planing base, the vertical column and the base must be non-vertical scraping correction. The old craft is first installed on the column (Figure 6) measurement, using the level instrument as a benchmark, the large platform to grind to find the scoop base, repeatedly repeated demolition of a ton of multiple columns. This maintenance to 3 days, a large amount of labor. In pushing the best movement, the clamp three groups of workers comrades by the brothers factory on the equalization of the circumferential wheel equal to the inspiration,