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【中国梦·大国工匠篇】机械大师谭伟明:手握锉刀,在坚守的路上“淬火成形”

2017-08-31 16:31:01   央广网

谭伟明负责创办的江西省谭伟明技能大师工作室就在生产车间里面,他认为车间就是最好的学习实践的课堂,让生产和研发零距离。

“攻克一个难题,可能目前的方案已经可以了,但我始终认为还有更好的解决办法。”说这话的是一名干了25年的钳工,他叫谭伟明,江西杰克机床有限公司高级技工。 “要做有科技含量的产品,就是要大胆提出不同的想法,用独特的思维尝试去突破技术难关。”谭伟明谈起产品创新来滔滔不绝,颇有心得。

圆柱静压导轨砂轮架进给系统是高精度高动态响应随动数控凸轮轴磨床的核心部件,静压导轨是一种精度极高而制造难度极大的部件,目前在国内及国际上仅有少数企业能够生产。该系统设计要求和技术指标都非常严格,要求所有零件装配完后整体承载刚性达3吨重,只用20N的力就能驱动灵活自如,无阻滞现象,重复定位精度0.001毫米,这对各个零部件的加工精度,装配综合精度极具挑战性。

该系统从研发到试制第一台套花了一年半之久进展不顺,每次技术指标测试和要求相差甚远,谭伟明和公司攻坚组的成员一直攻克不了这个难关,后来他回湖南老家休假找灵感,放松下来的他灵感迸发,想到把两个精密轴承座间由管路供油连接方式改为整体式油路板连接供油方式,减轻了别的零件重量,把多个零件组合变为一个零件,完全没有了加工误差和装配组合误差。这一方案实施后经过测试各项指标均符合设计要求,困扰着此部件一年多的问题终于得到了解决。

谭伟明在设计研发时“鬼点子”很多,但最让记者印象深的却是他扎实的基本功及学习实践能力。谭伟明向记者介绍道:“我工作25年,一直干这个,我觉得自己没什么惊天创举,手中的这把锉刀是我坚实的伴侣,我知道只有练好手上的功夫,才端得住这个饭碗!” 谭伟明在平板上反复磨练,手磨破了皮,缠上胶布接着练,这些对他来说都是习以为常的小事。

“为什么干了这么多年,你还坚持埋头苦练基本功?”记者有些好奇。谭伟明谈到了一个人,叫方文墨,他干机械的同行。一个80后的年轻小伙子。正常情况下,钳工一年会换10多把锉刀,方文墨一年却换了200多把,有几次居然生生把锉刀给练断了。教科书上,人的手工锉削精度极限是千分之十毫米。而方文墨通过后来不懈地历练,加工精度竟然达到了千分之三毫米,相当于头发丝的二十五分之一,这是数控机床都很难达到的精度。中航工业因此将这一精度命名为——“文墨精度”。而造潜水艇、飞机、动车等大国重器正需要这样的精度,能为国家机械制造贡献力量,这也是支撑谭伟明苦练技艺的动力所在。

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