Path interference and generation device and method

Patent metadata

Field	Value
Publication number	US-9342065-B2
Application number	US-201514816177-A
Country	US
Kind code	B2
Filing date	Aug 3, 2015
Priority date	Feb 5, 2010
Publication date	May 17, 2016
Grant date	May 17, 2016

Abstract

In devices for generating a path of a tool of a processing machine by way of computer simulation, an NC program is created using a generated processing path. The NC program used to be corrected by verification of actually moving the processing machine. In contrast, the disclosed processing path generation device has been constituted to be provided with a means for calculating a closest distance and direction from a relationship of a position and posture between a tool and a work at an arbitrary point upon the processing path; a means for imparting a color determined by the closest distance and the direction calculated at the point upon the processing path; a means for panoramically displaying the color imparted to the work; and a means for correcting the relationship of the a position and posture between the tool and the work on the basis of information from a display device.

First claim

The invention claimed is:

1. A processing path generation device that generates a path of a tool by calculating a positional and attitudinal relationship between a device of an NC processing machine and the tool, and a work through simulation executed by a computer, comprising:
closest distance calculation unit that calculates a closest distance between the tool and the work at a plurality of arbitrary points on the tool path, wherein the closest distance calculation unit awards a score to each of the plurality of arbitrary points in accordance with a distance and direction of the work from the tool based on a result of the calculation;
color or texture imparting unit that imparts one or more different colors or one or more different textures to each of the plurality of arbitrary points in accordance with the plurality of scores calculated by the closest distance calculation means; and
display unit that displays the color or the texture imparted by the color/texture imparting unit on a screen as the color or the texture at each of the plurality of arbitrary points on the tool path.

2. The processing path generation device according to claim 1 , further comprising:
an input unit that inputs information used for correcting the path or a posture of the tool on the screen of the display unit on which the color or the texture at each of the plurality of points on the tool path is displayed; and
a data correction unit that corrects the path or the posture of the tool based on the information input from the input unit, and displays a result of a recalculation of the scores for each of the plurality of points on the tool path, which is performed by the closest distance calculation unit again on the screen of the display unit.

3. The processing path generation device according to claim 2 , further comprising NC program generation device that allows the NC processing machine to generate an NC program for processing of the work based on a defect that has been corrected by the data correction unit.

4. The processing path generation device according to claim 1 , wherein: the tool formed as a device of the NC processing machine includes a holder of the tool, a holding device of the work, and a part of the processing machine around the work; and the work comprises a larger processing region.

5. The processing path generation device according to claim 1 , wherein the color or texture imparting unit imparts a specific color with brightness that differs in accordance with the distance and the direction of the work from the tool.

6. A processing path generation method that generates a path of a tool by calculating a positional and attitudinal relationship between a device of an NC processing machine and the tool, and a work through simulation executed by a computer, comprising:
calculating a closest distance between the tool and the work at a plurality of arbitrary points on the tool path;
awarding a score to each of the plurality of arbitrary points in accordance with a distance and direction of the work from the tool based on a result of the calculation;
imparting one or more different colors or one or more different textures to each of the plurality of arbitrary points in accordance with the plurality of scores; and
displaying the imparted color or the imparted texture on a screen as the color or the texture at each of the plurality of arbitrary points on the tool path.

7. The processing path generation method according to claim 6 , further comprising:
inputting information used for correcting the path or a posture of the tool on the screen on which the color or the texture at each of the plurality of points on the tool path is displayed; and
correcting the path or the posture of the tool based on the input information, and recalculating the closest distance between the tool and the work;
awarding the scores to each of the plurality of arbitrary points based on the recalculation; and
displaying a result of the recalculated closest distance on the screen again.

8. The processing path generation method according to claim 7 , wherein the NC processing machine is allowed to generate an NC program for processing the work based on data of the recalculated closest distance displayed on the screen again.

9. The processing path generation method according to claim 6 , wherein: the tool formed as a device of the NC processing machine includes a holder of the tool, a holding device of the work, and a part of the processing machine around the work; and the work comprises a larger processing region.

10. The processing path generation method according to claim 6 , wherein imparting of the color or the texture is performed by imparting a specific color with brightness that differs in accordance with the distance and the direction of the work from the tool.

Assignees

• Hitachi Ltd

Inventors

• Nonaka Yoichi
• Ishibashi Hisaya
• Nakano Takahiro

Classifications

• Y02P90/265

  Cross-Sectional Technologies · mapped topic

• G05B2219/4704

  Store actual edge, seam in memory before machining, compare with detected · CPC title

• G05B19/4069 Primary

  Simulating machining process on screen (G05B19/4068 takes precedence) · CPC title

• G05B2219/35348

  Different colour, texture as function of distance, direction between tool and workpiece · CPC title

• G05B2219/35324

  Two, more pictures separated on screen, display · CPC title