关于机械制图,

2025-03-24 13:51:14
推荐回答(2个)
回答1:

首先,我要告诉你不要建立信心,要相信自己是能学好制图这门学科的,不要在心理上就放弃。
其次,你要有正确的心态,不要认为这门学科没有学好,有什么捷径或者什么快的办法可以使自己在这方面水平得以快速地提高,凡事需要从基础学起。我是学机械制造专业的,机械制图是理科方面的,需要让人通过投影方面看图纸或作图等工作,所以在理性方面需要提高,需要拓宽自己的想象力。我个人认为制图这门学科较容易学的,我相信经过你的努力一定会成功学好这门功课。
希望你从制图的基础开始学起,点、线、面、投影、正视图、俯视图、左视图,然后再学向视图、剖面图、装配图。看图时注意需要将两到三个图结合起来看,因为都是投影,所以在一个视图中一般是表达不出它的直接意义。有不懂的地方可以发邮件给我,我的邮箱地址是clmzgcz@126.com。
最后,祝你成功。

回答2:

2、φ16H7中,公差带代号是“H”,公差等级是“7”,公称尺寸是“16”
3、写出主视图左侧6Xφ7*φ11深5的定位尺寸“φ71”
4、解释3XM5-7H深10/孔深12的含义“三个螺纹为M5的丝孔,精度等级为7级,有效螺纹深度为10毫米,螺纹底孔盲孔深度为12毫米”
5、解释主视图左侧φ32H8尺寸的含义“直径为32的孔,精度等级要求8级”
6、**被测要素为φ“55”的“右侧圆”端面,基准要素为φ“16”的轴线,检测项目是“垂直度”,公差值是“0.04”
7、右端面上φ10圆柱孔的定位尺寸是“20”
8、φ90外圆的表面结构代号是“”(没明白是什么意思)
9、在图上指定位置画出右视图的外形图(虚线不画)

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