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内燃凿岩机连杆大小孔要求的加工精度是比较高的。原来在立式钻床上加工,分为三道工序进行,生产效率很低,三道工序各需7分钟的时间,加工一件共需42分钟。洛阳风动工具厂工人阶级发扬独立自主、自力更生的精神,在技术人员的配合下,于1972年自己设计制造了一台专用机床。该机床将钻、镗工序合并,一次可加工两个零件,共需6～7分钟,提高工效十倍多,在生产上发挥了积极作用。
Internal combustion rock drilling rod hole requirements of the processing accuracy is relatively high. The original vertical drilling machine processing, divided into three processes, the production efficiency is very low, three processes each need 7 minutes, a total processing time of 42 minutes. Luoyang Pneumatic Tools Factory working class to carry forward the spirit of independence, self-reliance, with the cooperation of technical staff, in 1972, designed and manufactured a special machine. The machine will be drilling, boring process of merger, a machinable two parts, a total of 6 to 7 minutes to improve work efficiency ten times more, played an active role in production.