Automatic cutting machine teaching device

• US 20050277104A1
• Filed: 07/22/2003
• Published: 12/15/2005
• Est. Priority Date: 07/26/2002
• Status: Abandoned Application

• Current Assignee: Shima Seiki Manufacturing Limited
• Original Assignee: Shima Seiki Manufacturing Limited
• Inventors: Hama, Kazunari, Morimoto, Shinji
• Application Number:
  US10/522,184
• Publication Number:
  US 20050277104A1
• Time in Patent Office: Days
• US Class Current: 434/365
• CPC Class Codes: B26D 5/00 Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
• CPC Class Codes: B26D 5/005 Computer numerical control means
• CPC Class Codes: B26D 5/007 Control means comprising cameras, vision or image processing systems
• CPC Class Codes: B26D 7/015 for sheet material or piles of sheets B26D7/018 and B26D7/02 take precedence
• CPC Class Codes: B26D 7/018 Holding the work by suction
• CPC Class Codes: B26F 1/3806 wherein relative movements of tool head and work during cutting have a component tangential to the work surface B26F1/40 takes precedence
• CPC Class Codes: B26F 1/382 wherein the cutting member reciprocates in, or substantially in, a direction parallel to the cutting edge
• CPC Class Codes: B27M 1/08 by multi-step processes

Abstract

An automatic cutting machine teaching device includes image processing means and judgment means. The image processing means displays an image of a cutting area on a monitor and superimposes a cutting pattern of corrected making data on a position corresponding to the image of the cutting area displayed on the monitor. The judgment means judges whether the cutting pattern is entirely contained within the cutting area. If the cutting pattern is not entirely contained in the cutting area, the judgment means decides to cause an error and displays a portion of the cutting pattern out of the cutting area on the monitor.

Claims

1. A teaching device for an automatic cutting machine having a cutting table and a cutting area on the table for placing a sheet within the area, the teaching device, upon the designation of at least two teaching points on the sheet, computing a position and a slope of the sheet to the cutting area, correcting marking data in accordance with the position and the slope of the sheet, and cutting the sheet with corrected marking data, said teaching device being characterized

by judgement means for judging whether the cutting pattern is contained within the cutting area, after designation of the teaching points and the correction of the marking data, and

by subsidiary means for evaluating whether movement of the marking data or the sheet in position makes the cutting pattern within the cutting area, when the error is judged by the judgement means, and for correcting the marking data or the sheet relative to the cutting area, when the movement is evaluated possible.

2. A teaching device for an automatic cutting machine according to claim 1, being characterized in

that the cutting table is provided with a conveyor conveying the sheet along a longitudinal direction of the cutting area, and

that, when the error is judged by the judgment means, said subsidiary means computes a length of the cutting pattern extending out of an edge of the cutting area, evaluates whether movement of the sheet in position makes the cutting pattern within the cutting area, and drives the conveyor at least by the length computed, when the movement is evaluated possible.

3. A teaching device for an automatic cutting machine according to claim 1, being characterized in that,

when the error is judged by the judgment means, said subsidiary means evaluates whether movement of the marking data in position makes the cutting pattern within the cutting area and corrects the marking data so as to confine the cutting pattern within the cutting area, when the movement is evaluated possible.

4. (canceled)

5. (canceled)