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对每一个零件都力求完美

2017-08-15 13:53:41   中国青年网

本报记者 陈玮

每天学习十几个小时克服难关

在教书育人中,练军峰秉承着“精益求精”的精神,专注于每个学生的培养,他所培训的学生,在全国多个比赛中夺魁,十五人被中国工程物理研究院聘用。

上世纪90年代初,国内数控行业与世界先进水平存在较大差距,由于成绩优异,练军峰所在的学校决定选送他到香港震雄集团学习深造。那是当时全球注塑机销售量最大的生产商之一,技术在亚洲属于领先水平,这让求知若渴的练军峰非常兴奋。

可想掌握这些技术却不是轻而易举的事情。参阅资料全部都是专业英文资料,公司聘请的是德国专家,交流上也是一大难题。看不懂、学不会,练军峰一下子傻眼了。不服输的他就找了一本英语辞典,一个单词一个单词的查,一个句子一个句子的翻译,问师父,观摩工友操作,通过一天十几个小时的学习,在短短的两个月内,就能熟练地操作数控铣床了。

此外,在震雄集团期间,他独立开发编制了多种挖槽粗加工、平面加工、斜面、球体等的宏指令程序,大大简化了编程时间,在原有基础上大幅度提高了公司产品的加工效率及加工质量。

近百次失败研发出精密零件

练军峰认为,工匠精神首先应该要耐得住寂寞,经得起失败的考验,要有攻坚克难的信心和决心,对自己生产的每一个产品、每一个零件,都要力保合格、力求完美。

精度控制是数控技术的核心之一。2000年,练军峰主动向领导请缨,负责研制超精密零件“NOZZLE HOUSING”。这种零件是一种模具配件,市场需求量相当大,但因该零件精度要求相当高,特别是其中一个微孔公差仅为0.002mm(相当于一根头发的1/40),其它形位及装配尺寸也要求相当严格。练军峰经过一年多的试制,经历了近百次的失败,最终使用普通数控设备,成功地解决了微孔超精密加工技术及淬火材料加工内螺纹的加工工艺等难关,并形成了批量生产规模。

此外,为破陈出新,练军峰还专于技术研发。目前,常用的数控车床仅能加工回转类零件,数控铣床仅能加工箱体、曲面类零件,因此很多中小批量零件生产加工时,需要使用多台不同的设备,加工效率低,操作也不方便。为了提高生产效率,降低生产成本,练军峰不断对现有普通数控设备进行改造,终于研制出一种数控车铣加工装置,能在一台机床上实现车、铣加工,并于2014年获得国家专利证书。

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