带扭力保护装置的快换夹头，丝锥由螺丝固定。
Quick change tapping chucks with adjustable friction clutch tap fixted with screws.
介绍了快换丝锥夹头的结构、工作原理和主要零件的设计计算。
The structure and working principle of a screw tap holder is introduced, and the design calculation of its main parts is presented.
夹具采用波纹套或弹簧夹头形式，便于快换安装工件，以保证工作效 率。
The fixture is used in the type of corrugated set or collet chuck, which is convenient for fast changing and installing workpieces to ensure work efficiency.
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