Internal milling machine for milling crank pins

Details Internal milling machine for milling crank pins Internal milling machine for milling crank pins

1978-03-06

1979-10-23

Weidenfeld, Gil

Turning

Process of turning

82 20, 409189, 409190, B23B 518, B23C 306

Patent

active

041716540

ABSTRACT:
The machine of the present invention is an internal milling machine designed to mill the crank pins and crank arm cheeks of heavy crankshafts to precise dimensions. By relatively simply substitutions of gage blocks, the machine is capable of milling crankshafts having a wide range of crankshaft throw and pin diameters. An internal milling cutter is mounted on the machine frame for operation within a general plane which is stationary with respect to the machine frame, the crank pins to be milled being axially and rotatively indexed in succession to a fixed position in operative relationship with the internal milling cutter. The crankshaft is supported at its opposite ends by chucks mounted in a headstock and a tail-stock which are rigidly coupled to each other by tie-rods for simultaneous axial indexing movement.

REFERENCES:
patent: 3595131 (1971-07-01), Rozanek
patent: 3795161 (1974-03-01), Berbalk
patent: 3880025 (1975-04-01), Kralowetz

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