以前是用手工锉刀来加工自动车钩锁销孔的。朴里沃耳日斯科铁路局研制并使用了 1种新夹具 ,应用该夹具可以在立式铣床上加工自动车钩锁销孔。图 1　加工自动车钩锁销孔的夹具该夹具为 1个厚度 2 0mm的底板(见图 1) ,将自动车钩钩头挡铁、钩尾加强筋叉架焊接固定在该底板上。钩 Used to use manual file to process automatic latching pin hole. A new fixture has been developed and used by Park Riva, the Rizko Railway Administration, which can be used to machine automatic lathe pin holes in vertical milling machines. Figure 1 processing automatic coupler lock hole fixture The fixture is a thickness of 20mm of the floor (see Figure 1), the automatic coupler hook block iron, hook tail ribs welded to the bracket. hook