【正文】 pedal was usually connected to a pole, often a straightgrained sapling. The system today is called the spring pole lathe. Spring pole lathes were in mon use into the early 20th Century. A twoperson lathe, called a great lathe, allowed a piece to turn continuously (like today39。 可由車床生產(chǎn)的實物例子包含細(xì) 棒， 桌 腿，碗，棒球棍，曲 軸和凸輪軸。一些小車床 就被放在工 作臺或桌上 ，并沒有 支撐架 。一塊邊緣有洞的圓形金屬板固定在主軸上，被稱為“索引模塊”。車床配備了索引板，剖面刀，螺旋或螺旋指南等，以便使人觀賞車削的是一種觀賞性的車床。兩個主軸孔大小的工件用夾頭夾住是很常見的，即六毫米和八毫米，兩種模式的基座是常見的： Webster Whitb 基座，一個截 短的三棱鏡（只在八毫米的鐘表制造車床上發(fā)現(xiàn)）；和大陸右旋風(fēng)格的柜臺式基座。主軸受驅(qū)動，傳遞動力給工件。今天該系統(tǒng)被稱為 “反彈 桿 ” 車床。s lathes are metal, jeweler39。裝備最完善的 金工車床還可以用來生產(chǎn) 旋轉(zhuǎn)物 體，飛機表面 物體 和螺紋或螺旋。 電動機 也產(chǎn)生 一個 更大的轉(zhuǎn)速， 使車床更 方便 地快 速 進行 高質(zhì)量的 加 工。工件可夾 在卡盤里頭 ， 卡盤 直接 固定 在主軸 上 或 固定 在 某 個軸 上 。 由 計算機 控制的車床是 數(shù)控車床。有一個非常大的主軸孔和主軸兩端各帶一個卡盤的車床叫做“油田車床”。 除非 主軸上的 一個工件錐度 可 加工到它完 全 契合內(nèi)部錐度，或 是主軸有 線程完全匹配外部線程（兩件事情幾乎不會發(fā)生）， 主軸 必須 得用配件 安裝一個工件。師傅 削減木材， 同時 學(xué)徒 旋轉(zhuǎn) 曲柄。 車床用于 木料車削加工 ，金屬加工， 和玻璃加工 。 and the continental Dstyle bar bed (used on both 6 mm and 8 mm lathes). Lathes that sit on a bench or table are called bench lathes. Lathes that do not have additional integral features for repetitive production, but rather are used for individual part production or modification as the primary role, are called engine lathes. Lathes with a very large spindle bore and a chuck on both ends of the spindle are called oil field lathes. Fully automatic mechanical lathes, employing cams and gear trains for controlled movement, are called screw machines. Lathes that are controlled by a puter are CNC lathes. Lathes with the spindle mounted in a vertical configuration, instead of horizontal configuration, are called vertical lathes or vertical boring machines. They are used where very large diameters must be turned, and the workpiece (paratively) is not very long. A lathe equipped with indexing plates, profile cutters, spiral or helical guides, etc., so as to enable ornamental turning is an ornamental lathe. Various binations are possible: . one could have a vertical