Tracer mechanism with axial force means for its stylus and syste

Details Tracer mechanism with axial force means for its stylus and syste Tracer mechanism with axial force means for its stylus and syste

1975-11-25

1977-12-20

Dobeck, B.

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

318135, G05B 1936

Patent

active

040644456

ABSTRACT:
A tracer mechanism having a stylus to scan the surface of a pattern or a template and to cause a congruent relative movement of a cutter and a workpiece, whereby to reproduce the contour of the pattern or template in the workpiece. The stylus is provided with an axial force element which can adjustably vary the endwise thrust of the stylus, thereby to vary the reaction force of the stylus against the workpiece. As a consequence, the stylus can be caused more accurately to track the pattern or template along a tracing plane, especially on a pattern which has a steep slope that tilts laterally relative to the tracing plane. Means is also disclosed to utilize the axial force element in a machine tool table control wherein a "box-cycle" movement is made in which the cutting tool is withdrawn from the workpiece, is stepped to a new tracing plane, and is returned in a non-cutting motion to the starting point of a subsequent cutting movement parallel to the first one.

REFERENCES:
patent: 2866153 (1958-12-01), Rhoades
patent: 3457484 (1969-07-01), Shimizu et al.
patent: 3481577 (1969-12-01), Fling
patent: 3573546 (1971-04-01), Hemery
patent: 3727119 (1973-04-01), Stanley et al.
patent: 3976928 (1976-08-01), Wenzel

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