The lathe is one of the most useful and versatile machines in the workshop，and is capable of carrying out a wide variety of machine operations。 The main components of the lathe are the headstock and tailstock at the oppoaite ends of a bed，and a tool-post between them which holds the cutting tool。the tool-post stands on a cross-side which enblesit to move sidewards across the saddle or carriage as well as along it，depending on the kind of job it is doing。the ordinary centre lathe can accommodat only one tool at at time on tool-post，but a turret lathe is capable of holding five or more tools on the revolving tueeet。 The lathe bed must be very solid to prevent the machine from bending or twisting under stress。

zp1948 2007-07-21

車床是車間裡最有用的通用的機器，（它）能夠完成許多不同的機加工操作。車床的主要部件是（分別）位於床身兩端的床頭箱和尾架；還有（床頭箱和尾架）之間的其上夾持有刃具（刀具）的刀架。刀架位於一個縱面板（小拖板）上，小拖板使刀架能夠根據加工操作的不同作縱向移動；同時又隨大拖板作橫向移動。普通頂尖車床只能在刀架上夾持一件刃具，但六角車床可以在其旋轉的六角刀架上夾持五件或更多的刃具（刀具/工具）。車床的床身必須很牢固結實以避免在受力的時候彎曲和變形。

請提問的同學最好參觀一下工廠的金屬切削/機加工車間。那裡有車床，還有其他種類的金屬切削機床。當然還有先進的數控加工中心（MACHINING CENTRE），這也是一種金屬切削機床。