Cutters – for shaping – Gear cutting tool – Hob
Patent
1983-10-28
1985-08-20
Vlachos, Leonidas
Cutters, for shaping
Gear cutting tool
Hob
B23F 2116
Patent
active
045361061
ABSTRACT:
A heavy-duty hob for hobbing gears comprises a cylindrical body formed in its peripheral surface with generally axially extending grooves, and tooth-carrying bars, which extend in said grooves and carry cutting teeth which radially protrude from said body and constitute a helical array around the body. It is an object of the invention to avoid the disadvantages of known hobs, to provide the hob with easily replaceable cutting tips, and to permit the use of stable bar-shaped cutting tips which have no through bores and can be used in a plurality of positions and regardless of the module of the gear to be cut extend throughout the length of that side face of the associated tooth which engages the cutting tip. This is accomplished in that the teeth protrude in the cutting direction from the associated tooth-carrying bars, the leading surface of each tooth is formed with an angle-section groove, which is open on four sides, and a bar-shaped cutting tip is detachably secured to each tooth in its said grooves so that the ends and the cutting faces of the cutting tip protrude from said tooth.
REFERENCES:
patent: 829081 (1906-08-01), Moras
patent: 1867161 (1932-07-01), Leahy
patent: 2690610 (1954-10-01), Begle
patent: 3298254 (1967-01-01), Vassallo
patent: 3380137 (1968-04-01), MacPetrie et al.
patent: 4218159 (1980-08-01), Langen
Kearns Jerry
Vlachos Leonidas
Walztechnik Saacke Zorn GmbH & Co.
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