Hammering formation device null of sear dissemination coming dog clutch

摘要

PROBLEM TO BE SOLVED: To quickly and simply carry out the processing by forming an engaging face of the jaw clutch hole into a reverse taper by forging. ;SOLUTION: In this device, a die hole 4a being tapered downwards is provided at the center part of a die body 2, and a pair of divided dies 6 being divided in a semi-circular disc shape are opposed and taper-engaged with the die hole 4a so as to extrusion-form a forming teeth 7 on the upper face of at least one of the divided die 6. Further, a forming face 7a' of the forming teeth 7 facing on the divided face side of the divided die 6 is inclined in a direction of the divided face of the divided die 6 as it goes upwards. An intermediate product 20 holding a jaw clutch hole 22 at the end face part of the circular body is arranged at the upper part of each divided die 6, and the jaw clutch hole 22 is engaged in the forming teeth 7 of the divided die 6. Further, a punch 15 is provided, which presses and moves each divided die 6 downwards along with the intermediate product 20.;COPYRIGHT: (C)1999,JPO