Laser apparatus and method for aligning a crankpin grinding mach

Details Laser apparatus and method for aligning a crankpin grinding mach Laser apparatus and method for aligning a crankpin grinding mach

1991-01-28

1992-09-15

Buczinski, Stephen C.

Optics: measuring and testing

Angle measuring or angular axial alignment

With photodetection remote from measured angle

5116572, 5116574, 356153, 408 13, 409147, 409245, G01B 1126, G01C 100

Patent

active

051482320

ABSTRACT:
An apparatus and method for aligning a crankpin grinding machine of the type having a pair of opposite facing workheads for mounting a crankshaft on its end journals and rotating the crankshaft about an axis passing through selected crankpins during the grinding of the selected crankpins and an indexing device in one of said workheads for indexing the crankshaft about the axis of the end journals to position and grind other selected crankpins. The apparatus is comprised of a laser for projecting a narrow collimated beam of light, a photoelectric target to intercept the target and produce an output which is indicative of where the laser beam intersects the target, an input-output unit to process the output of the target and display information to an operator; and special adapters to mount the laser and target on the crankpin grinding machine to align the workheads, workholders and indexing device of the machine. The method comprises a sequence of steps for mounting and revolving the laser and target and re-positioning the workheads, workholders and indexing device of the machine.

REFERENCES:
patent: 3551057 (1970-12-01), Hamilton et al.
patent: 3558231 (1971-01-01), Bakel
patent: 4566226 (1986-01-01), Kimura
patent: 4712953 (1987-12-01), Witzel et al.

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