Patent · US Expired

Method for controlling the path of a punching tool

US4916990A · kind A · utility

7Cited by

8References

2Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Stefan Dolansky · Altdorf, DE
Guenter Broemer · Spardorf, DE
Volker Reetz · Beverungen, DE

Key dates

Filing date	Dec 6, 1988
Grant date	Apr 17, 1990
Priority date	—
Expiry date	Dec 6, 2008

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T83/173
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

So that the path (BB, V1 to V7) for a rotable polygonal punching tool (WZ) can be determined easily, the workpiece contour (K), the dimension of the tool (x, y), the position of the axis of rotation (x/2, y/2) and the sense of direction of the machining are set by the operator into a numerical control (ST). An equidistant track (BB) is therefrom determined by the control (ST), such as is customary for milling operations. This track (BB), however, is corrected in the vicinity of corner of the workpiece contour (K) by the control (ST) in such a manner that punching optimized with respect to distance and time and with high contour fidelity is made possible.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.