Method of and apparatus for measuring workpieces

Details Method of and apparatus for measuring workpieces Method of and apparatus for measuring workpieces

1992-01-21

1994-03-29

Noland, Tom

Measuring and testing

Inspecting

414226, 414564, 414590, 414669, G01B 2100, B66F 1100

Patent

active

052974340

ABSTRACT:
Successive workpieces of a series of identical and/or different workpieces are measured at a monitoring station to which the workpieces are delivered by a conveyor serving to advance the workpieces along and/or against one or more orienting devices. A workpiece at the monitoring station is engaged by a clamping device which can enter an axial passage of the workpiece, or can engage a coaxial stud of the workpiece, and is mounted on an elevator which can shift a properly engaged workpiece above or below the transporting level. The workpiece is thereupon monitored by one or more sensors in suspended condition and is returned onto the conveyor. The monitoring operation can involve a single step or a number of steps, for example, to ascertain the condition and/or the shape of the peripheral surface of a cylindrical or polygonal workpiece, to determine the axial length of a workpiece, to determine the inner and/or outer diameter of a workpiece, to determine the inclination of the end faces of a workpiece relative to each other and/or relative to the rotational axis of the workpiece and/or other parameters. The workpiece may but need not rotate and/or move axially in the course of a monitoring operation.

REFERENCES:
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patent: 3255893 (1966-06-01), Hainer et al.
patent: 3874525 (1975-04-01), Hassan et al.
patent: 4619141 (1986-10-01), Yoshieda et al.
patent: 4671122 (1987-06-01), Igarashi
patent: 4852415 (1989-08-01), Bogatzki et al.
patent: 4873878 (1989-10-01), Milton
patent: 4911597 (1990-03-01), Maydan et al.
patent: 5046844 (1991-09-01), Milton
patent: 5214969 (1993-06-01), Adkins et al.

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