System and method for generating a control program

• US 7,092,787 B2
• Filed: 12/17/2004
• Issued: 08/15/2006
• Est. Priority Date: 12/22/2003
• Status: Expired due to Fees

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Kuhnert, Wolfram
• Primary Examiner(s): Gandhi, Jayprakash N.
• Application Number:
  US11/016,698
• Publication Number:
  US 20050137726A1
• Time in Patent Office: 606 Days
• Field of Search: 700/83, 700/90, 700/95, 700/159, 700/181
• US Class Current: 700/181
• CPC Class Codes: G05B 19/4207 in which a model is traced or scanned and corresponding data recorded
• CPC Class Codes: G05B 2219/35159 With nominal blank and model in memory define tool path and machine workpiece
• CPC Class Codes: G05B 2219/36248 Generate automatically machining, stitching points from scanned contour

Abstract

A system for generating a control program for a machine includes an optical image acquisition device, in particular a scanner and a machine control system connected to the scanner. The machine control system includes an image processing module that associated image data read by the image acquisition device with contour data and additional image data, a code generator for automatically generating the control program based on the contour data, and a memory that stores the control program.

Claims

1. A system for automatically generating a control program for a machine from a drawing, comprising:

an optical image acquisition device reading the drawing;

a machine control system connected to the image acquisition device and comprising

an image processing module that associates image data recorded by the image acquisition device with contour data and additional image data;

a code generator that automatically generates the control program based on the contour data;

an interactively controllable correction module that cooperates with the image processing module and the code generator; and

a memory that stores the control program,

wherein the correction module automatically proposes several contours or contour transitions for an ambiguous contour segment and allows interactive selection of one of the contours or contour transitions or addition of a missing contour or contour transition.

2. The system of claim 1, wherein the image acquisition device comprises at least one of a scanner and a digital camera.

3. The system of claim 1, wherein the code generator comprises a contour computer capable of automatically correcting ambiguous features in the drawing.

4. The system of claim 3, wherein the ambiguous features are selected from the group consisting of double-lines, missing contour lines, and imprecise contour transitions.

5. The system of claim 1, wherein the additional image data read by the image acquisition device include auxiliary lines.

6. The system of claim 1, wherein the additional image data read by the image acquisition device include textual data.

7. The system of claim 1, wherein the correction module receives additional data relating to a tool used for machining a workpiece with the control program.

8. A method for generating a control program for a machine, comprising the steps of:

with an optical image acquisition device, reading a technical drawing into an image acquisition module that forms a part of a machine control system;

associating the image data acquired with the image acquisition module with contour data and additional data;

with an interactive correction module, automatically proposing several contours or contour transitions for an ambiguous contour segment and allows interactive selection of one of the contours or contour transitions or addition of a missing contour or contour transition; and

automatically generating from the contour data a control program capable of controlling the machine.

9. The method of claim 8, wherein exclusively arcuate segments and straight sections are generated from the contour data.