Universal connecting rod fixture and method

Details Universal connecting rod fixture and method Universal connecting rod fixture and method

1998-01-26

1999-08-24

Scherbel, David A.

Work holders

Relatively movable jaws

Jaw features

269902, 269305, 269156, 292815, 292811, B25B 516

Patent

active

059415150

ABSTRACT:
A universal locating fixture for machining various sizes of engine connecting rods. In one embodiment, the fixture includes locating pads, opposed clamps and a crank bore-engaging equalizing locator on a fixed part of the fixture for locating and clamping the crank end of a connecting rod forging for machining. A single locating pad and opposed clamp and a pin end-engaging V locator are mounted on an axially adjustable slide of the fixture for locating and clamping the pin end of a connecting rod for machining. The clamps may be made to accommodate differing widths of connecting rods and the equalizing locator has two locating points spaced to accommodate various crank bore diameters without adjustment. Adjustment of the fixture to machine connecting rods of different lengths requires only axial adjustment of the slide to position the pin end locating pad, clamp and V locator in proper position for the new length. The method requires that the various sizes of connecting rods all have commonly spaced locating and clamping points at the crank end and commonly positioned locating and clamping points at the pin end to allow machining of any length rod within the limits of travel of the slide.

REFERENCES:
patent: 3122866 (1964-03-01), Gross
patent: 4541620 (1985-09-01), Rottler et al.
patent: 4824086 (1989-04-01), Rickling et al.
patent: 5255901 (1993-10-01), Rottler
patent: 5556085 (1996-09-01), Cyr
patent: 5640750 (1997-06-01), Yoshida et al.

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