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第十六章 车床(1 / 1)

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徐光启低头想,木床换成铁墩,木托换成铜质 ,确实能增加精度,可是要一个方向转?于是看向张好古,张好古看到老师的疑问眼神。便说“恩师且随我来。”于是扶着徐光启来到一个账房,随手拿过几张没用过的纸,简单画了车床的样子,卡盘卡住炮筒,卡盘带动炮体转动,炮口用刀往里进,这样平直而且还圆 ,不论是刀削还是磨,这样精度就会大大提高,至于转动,人力,畜力,水力都可以,可以用齿轮来转换,方向还有速度,并简单的画了几个齿轮组合。

徐光启一看,立马明白了,怎么把齿轮忘了呢?不管是钦天监里的仪器,还有钟表,里面不都有齿轮么,只不过这里用的大一些罢了。这一通窍,不禁喜笑颜开。

“致远啊!致远!妙,你这又解决了一个大难题啊!我怎么就没想到呢?”说完老头严肃的看着张好古说:“致远,那么我就把制造车床这事交给你,你来主事。”张好古一听,顿时呆了,急忙说道:“恩师,弟子年幼,只不过是纸上谈兵罢了,怎么去主事呢?”

“此言差矣,你能想到,能画出来,那么你就能做出来,放心吧!我会找人来帮你,有西洋人精通造物,再给你找些匠师,再说你师兄元化过几天也回来述职,他也能帮你。正好你们一起认识认识,老师也老了,你们都应该早点独挡一面,好了,你不用多说,这事就这么定了,别的事你都先放下,我去和你们张大人说。”

这事定下后,徐光启遣来几个西洋人,

又加上几个精通算学的官员,张好古先召集大伙把图纸做出来,经过反复演算,过了十天了才开始动工,张好古做的图,引起了西洋人的注意,看画法有些是西方的技法,可是又不一样,每个部件都注明尺寸,甚至详细到齿有多少个,多高都清楚表明 ,而且一图三画,正面的,侧面的,从上往下看的,。

西洋人开始看了画,也是不明白,经过张好古解释,这图是从天上看这部件,这张是侧面看这部件,这张是从前面看的,合起来叫三视图。好处是可以简化复杂的查询语句,使得用户只需执行简单的查询语句即可获取所需数据,提高了操作的便捷性。视图可以帮助用户合并或分割数据,使得应用程序和数据库表在一定程度上独立,从而简化了应用程序的重构和维护。此图能定制数据,简化数据,合并数据,分化数据,安全,逻辑数据,共享数据,组织数据,模块化数据,简化,提高效率。对于三视图,可以形成一种制度,对于以后诸多部件都可适用。

另外张好古还补充了剖面图,这样就具体了些,两种图形一结合,这个部件一下子就一目了然,大多人都能看懂,就是西洋人也多多称赞,说是学到了,也是对张好古刮目相看。

喜欢学名张好古请大家收藏:学名张好古本站更新速度全网最快。

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