RADIAL SQUEEZING MACHINE DRIVER CENTRE Russian patent published in 2015 - IPC B21J13/08 

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming and may be used in producing 4.5-30 mm-calibre gun barrels. Pipe billet radial-squeezing machine hollow driver arranged at front part and provided with teeth is shaped to truncated cone with its base centre changing into cylinder with outer lengthwise grooves without rear walls while its read part changes into the stem. Note here that larger-diameter is made at the driver front end exposed to smaller-diameter through chamber. Conical chamber without thread is made at driver front end while cylindrical chamber with thread is made at its top. Side surfaces of the latter are engaged with appropriate surfaces of screwed-in sleeve with auxiliary elements for appropriate wrench intended for assembly for driver or replacement of worn-out sleeve. Besides, seals are arranged in driver body grooves to rule out the ingress of water-based lubricant-coolant in the zone of contact between body and sleeve. There are transverse openings in said body for discharge of lubricant-coolant at machine operation.

EFFECT: better reparability, longer life, lower costs of forged pieces.

2 cl, 5 dwg