US Patent: 5,408,906 - System for Simultaneously Setting Stroke on a Crankshaft Lathe


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US Patent: 5,408,906

System for Simultaneously Setting Stroke on a Crankshaft Lathe

Patentee:

William R. Gleason (exact or similar names) - Los Osos, San Luis Obispo County, CA

USPTO Classifications:

29/888.08, 82/106, 82/109, 82/170

Tool Categories:

metalworking machines : metal lathes : crankshaft lathes

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Aug. 22, 1994
Granted:	Apr. 25, 1995

Patent Pictures:

USPTO (New site tip)
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Description:

Abstract:

A system is disclosed for simultaneously and more efficiently setting the stroke position of a crankshaft on a crankshaft lathe and a method of using the system in combination with the lathe for regrinding, building-up by welding or other machining of journals of the crankshaft. The system includes slide blocks and slides in operable combination with rack and pinion gears for simultaneously positioning the crankshaft from a zero loading position to an offset position transverse to the longitudinal axis of the lathe.

Claim:

In a crankshaft lathe having a headstock, a tailstock and a holding chuck, holding chuck back plate, main spindle shaft, and drive dog collar operably connected to each of said headstock and said tailstock, a system for simultaneously setting the stroke position of a crankshaft comprising:

(a) headstock mini-shaft journaled in the headstock drive dog collar, said mini-shaft having a first end operably attached to the headstock holding chuck back plate and a second end;

(b) headstock rack and pinion gear means mounted on the second end of said headstock mini-shaft between the headstock main spindle shaft and the headstock drive dog collar;

(c) tailstock mini-shaft journaled in the tailstock drive dog collar, said mini-shaft having a first end operably attached to the tailstock holding chuck back plate and a second end;

(d) tailstock rack and pinion gear means mounted on the second end of said tailstock mini-shaft between the tailstock main spindle shaft and the tailstock drive dog collar;

said headstock and tailstock rack and pinion means for simultaneously positioning the crankshaft from a zero loading position in which the main spindle shaft for the headstock and tailstock are in alignment with the crankshaft along the longitudinal axis of the crankshaft lathe to an offset position transverse to the longitudinal axis.