Cutting – With product handling means – Including means to divert one portion of product from another
Patent
1987-10-16
1990-01-23
Schmidt, Frederick R.
Cutting
With product handling means
Including means to divert one portion of product from another
82165, B23B 518
Patent
active
048950572
ABSTRACT:
The known turn broaching of crankshaft main bearings is not suitable for broaching crankshaft bearing pins for the connecting rods because that would require locating the rotational axis of the crankshaft in the connecting rod bearing pins, whereby the crankshaft would rotate eccentrically. The resulting unbalances prevent driving the crankshaft with the r.p.m. required for the turn broaching operation. To avoid this problem a broaching lathe for the rotational or turn broaching of crankshaft connecting rod bearing pins is equipped with a steady rest including a rotating support device which permits mounting the crankshaft in the lathe in such a way that the rotational axis coincides with the axis of the connecting rod bearings of the crankshaft.
REFERENCES:
patent: Re19730 (1935-08-01), Groene
patent: 2511741 (1950-06-01), Schulz
patent: 2570964 (1951-08-01), Meyer
patent: 2604804 (1952-07-01), Schulz
patent: 2620699 (1952-12-01), Meyer
patent: 3257880 (1966-06-01), Hermann
patent: 3680876 (1972-08-01), Okada
patent: 3880025 (1975-04-01), Kralowetz et al.
patent: 4521143 (1985-06-01), Schmid
patent: 4693147 (1987-09-01), Shackleton
P. 28 of "Maschinenmarkt", Wuerzburg 92 (1986) 34 (Article).
Berstein Garri
Obrig Hans W.
Wittkopp Helmut
Wolters Hermann
Cruz Lawrence
Fasse W. G.
Kane, Jr. D. H.
Schmidt Frederick R.
Wilhelm Hegenscheidt Gesellschaft mbH
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