为消除连杆小头孔位置综合误差,提出一种采用更换新衬套,并对衬套孔进行镗削而精确修正误差的方法。阐述了误差修正的原理,建立了连杆小头基孔位置综合误差与衬套经镗削后的壁厚的定量关系,分析了限制衬套最小壁厚的因素,得出了误差修正的条件。误差修正实例和实际应用情况表明,误差修正的理论分析正确,方法可行、有效。 In order to eliminate the error of the small head position of the connecting rod, a method of accurately correcting the error by replacing the new bushing and boring the bushing hole is proposed. The principle of error correction is expounded. The quantitative relationship between the total error of the base hole of the connecting rod and the wall thickness of the bushing after boring is established. The factors of limiting the minimum wall thickness of the bushing are analyzed. The error correction conditions . The examples of error correction and practical application show that the theoretical analysis of error correction is correct and the method is feasible and effective.