Apparatus for measuring the accuracy of parallel platen tie bars

Details Apparatus for measuring the accuracy of parallel platen tie bars Apparatus for measuring the accuracy of parallel platen tie bars

1995-03-15

1996-04-16

Cuchlinski, Jr., William A.

Geometrical instruments

Straight-line light ray type

Alignment device

33DIG21, 100 99, G01B 1126

Patent

active

055070973

ABSTRACT:
A laser apparatus for inspecting machine tie bars. The apparatus broadly comprises a laser emitter, a photocell target, a control unit, a computer, a display unit and precision adapters for mounting the emitter and target. The laser emitter is mounted on a fixed platen and oriented substantially square to a surface of the fixed platen. The target is mounted on the tie bar and intercepts a laser beam from the emitter to generate voltages which are processed in the control unit and computer. Angular and lateral deviations of the laser beam from a rotational axis of the target, which are indicative of tie bar straightness and squareness, are displayed on the display unit.

REFERENCES:
patent: 2638676 (1953-05-01), Callahan
patent: 2656607 (1953-10-01), Harding
patent: 4195563 (1980-04-01), Budraitis et al.
patent: 4696190 (1987-09-01), Bucher et al.
patent: 4709485 (1987-12-01), Bowman
patent: 4907881 (1990-03-01), Jones
patent: 5077905 (1992-01-01), Murray, Jr.
patent: 5148232 (1992-09-01), Duey et al.
patent: 5328346 (1994-07-01), Kodric

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