| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: proposed tap holder comprises tap collet chuck on one end, case of appliance to receive opposite end of collet chuck and to be fixed on metal cutting machine tool equipped with tap sync feed mechanism. Note here that collet chuck may be fitted in thread cutting appliance case. Tape holder comprises also retainer fitted in collet chuck and aligning appliance. Note also that retainer is engaged with collet chuck and appliance case in fitting elastic element on both sides in axial direction between retainer and at least one collet chuck and appliance case. ^ EFFECT: compensation for mismatch between feed and thread pitch. ^ 12 cl, 23 dwg |
