Automatic profiling machine

Details Automatic profiling machine Automatic profiling machine

1975-11-13

1977-06-28

Smith, Al Lawrence

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51101R, 51145R, 51147, 90 134, B24B 1700, B24B 1914, B24B 2116

Patent

active

040316696

ABSTRACT:
A model and a workpiece are rotated synchronously, and a stylus is disposed for relative movement toward or away from the model in a direction perpendicular to the axis of rotation thereof for contact therewith. The amount of displacement of the stylus from its neutral point which occurs while it contacts the model is detected by a tracer head and is divided into a pair of components lying in a plane perpendicular to the axis of rotation of the model which are along the direction of said relative movement and along a direction orthogonal thereto. The distance between the center of rotation of the model and the center of the stylus is also detected, and is utilized together with the two orthogonal components of the displacement, the radius of the stylus, a reference displacement of the stylus as well as an established speed therefor in order to control the speed of rotation of the model and the speed of said relative movement between the stylus and the model so that the speed with which the point of contact between the stylus and the model moves along the contour of the model becomes equal to a preselected value. A workpiece and a tool therefor are disposed in a similar relationship as the relationship between the model and the stylus, and are driven in synchronism with the model and the stylus for profiling the workpiece. Where the tool contacts the workpiece over a certain width as with an abrasive belt, the contact segment of the stylus is angularly moved so as to follow the curved surface of the model, thereby detecting an angle of skew of the curved surface so that the angle of skew of the tool coincides with the detected angle.

REFERENCES:
patent: 2005508 (1935-06-01), Shaw
patent: 2178441 (1939-10-01), Swanson
patent: 3041789 (1962-07-01), Cretin-Maitenaz
patent: 3589075 (1971-06-01), Carlson
patent: 3750345 (1973-08-01), Kolesar
patent: 3786600 (1974-01-01), Bloxsom
patent: 3834084 (1974-09-01), Sakane

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