溜板箱机械加工工艺规程及镗孔夹具设计（有CAD图纸）.pdf

AbstractThe apron is transmits the guide screw and the feed rod turns on lathe the transportation to turn becomes the apron the translation and the impetus tool rest enters gives, controls the tool rest movement to put through, the separation and the commutation. When the engine bed overloads, can cause the tool rest automatically to stop; Also may the hand operated tool rest move or the realization quick movement and so on. Fixes in the saddle place, and is hanging in lathe bed front. It including the gear, the coupling and manual and automatically enters the handle which uses for the bed saddle. Slides pulls in the box to have a pinion. But the pinion the under rack meshes with the lathe bed in front of, may use the hand starting or cranking to slide pulls the box handwheel, may cause the bed saddle longitudinal shift. The apron including automatically enters for the friction clutch and opens and closes the nut with,Opens and closes the nut to anchor in the guide screw thread place above, only when cutting thread uses. 1 ………………………………………………………………………1 ……………………………………………………2 1.1 ……………………………………………………3 1.2 ……………………………………4 1.3 …………………………………………………5 ………………………………………6 2.1 …………………………………………………7 2.2 ……………………………………………………8 2.3 ……………………………9 2.4 …………………………………………………10 …………………………………………………………………11 …………………………………………………………………12 …………………………………………………………………13 ……………………………………………………………………14 ………………………………………………………………………15 19 2