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词汇 Back gear
分类 英语词汇 英语翻译词典
释义

Back gear

中文百科

车床 Lathe

（重定向自Back gear）
图中显示一个金属加工普通车床。
主轴变速箱
尾座台

车床，又称镟床，是一种将加工物固定在一旋转主轴上加工的工具机。1797年英国人亨利·莫兹利发明了车床，通常用在圆柱型态的工件加工。一般车床配备各种专用刀具，可完成内外圆加工、钻孔、车螺纹、切断车槽、端面加工、车外圆、钻中心孔、车孔，铰孔、车圆锥、车成形面、滚花、盘绕弹簧等加工进程。

英语百科

Lathe 车床

（重定向自Back gear）
A metalworking lathe from 1911, showing component parts: a – bed b – carriage (with cross-slide and toolpost) c – headstock d – back gear (other geartrain nearby drives leadscrew) e – cone pulley for a belt drive from an external power source f – faceplate mounted on spindle g – tailstock h – leadscrew
A watchmaker using a lathe to prepare a component cut from copper for a watch
Exact drawing made with camera obscura of horizontal boring machine by Jan Verbruggen in Woolwich Royal Brass Foundry approx 1778 (drawing 47 out of set of 50 drawings)
A steady rest

A lathe /ˈleɪð/ is a machine tool that rotates the workpiece on its axis to perform various operations such as cutting, sanding, knurling, drilling, or deformation, facing, turning, with tools that are applied to the workpiece to create an object with symmetry about an axis of rotation.
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