V2EX collet

Collet

Definition / 释义

collet(夹头;弹性夹套):机加工中常见的一种带开槽的圆筒形夹持套,通过锥面收紧来夹牢刀具或工件(如铣刀、钻头、棒料)。常见于车床、铣床、雕刻机/电主轴等。
(另有较少见用法:在植物学里可指幼苗根颈部位等含义。)

Pronunciation / 发音

/klt/(英)
/klt/(美)

Etymology / 词源

来自法语 collet,原义与“小领子/颈圈”相关(源自 col “脖子、颈部”)。因为这种零件像“套在外面的环/圈”一样包住并夹紧物体,后来在机械领域引申为“夹头、夹套”。

Examples / 例句

I tightened the collet to hold the drill bit.
我拧紧了夹头来固定钻头。

After the tool change, the technician checked the ER collet for wear and measured runout to ensure the cutter would stay concentric at high speed.
更换刀具后,技术员检查了 ER 夹头的磨损,并测量跳动量,以确保刀具在高速下仍能保持同心。

Related Words / 相关词

Literary Works / 文学与著作例证

  • Machinery’s Handbook(《机械工程师手册》):常在刀具夹持与夹头标准章节出现 collet
  • L. H. Sparey, The Amateur’s Lathe(《业余车床》):介绍车床夹持方式时会讨论 collet 与卡盘的差异。
  • Ernie Conover, The Lathe Book(《车床之书》):涉及夹头系统、同心度与跳动控制时使用 collet
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