Method of displaying shapes of material/product in machining simulation

• US 6,594,543 B2
• Filed: 12/21/2000
• Issued: 07/15/2003
• Est. Priority Date: 01/13/2000
• Status: Expired due to Fees

• Current Assignee: MORI Seiki Company Limited
• Original Assignee: MORI Seiki Company Limited
• Inventors: Murozumi, Masanori
• Primary Examiner(s): Picard, Leo
• Assistant Examiner(s): Lee, Douglas S.
• Application Number:
  US09/740,999
• Publication Number:
  US 20010008982A1
• Time in Patent Office: 936 Days
• Field of Search: 700/173, 700/176-180, 700/159, 700/182, 700/184, 700/187
• US Class Current: 700/184
• CPC Class Codes: G05B 19/4069 Simulating machining process on screen G05B19/4068 takes precedence
• CPC Class Codes: G05B 2219/35333 Display raw material, blank, tool locus, workpiece, alarm if error
• CPC Class Codes: G05B 2219/35341 Display finishing, finishing margin, work, tool and chuck shape, different colours
• CPC Class Codes: G05B 2219/36071 Simulate on screen, if operation value out of limits, edit program
• CPC Class Codes: G05B 2219/36073 Display original and modified part in different colour, highlight, shading, filling

Abstract

The invention relates to a method of displaying a shape of a material and a shape of a product for a speedy machining simulation. In the machining simulation wherein the shape of the material, the shape of the product, and a shape of a tool are displayed as images on a display unit, and portions of the image of the material and the image of the product overlapping the image of the tool are successively eliminated, the shape of the product in accordance with a portion to be machined is displayed as a line image indicating only an outline of the product, on the other hand, the shape of the material is displayed as a plane image indicating an area in correspondence with a machining allowance, in case that the material includes the portion to be machined which is formed by adding the specified machining allowance to the outline of the product. Therefore, a data input in relation to the shape of the material can be simplified, whereby the speedy machining simulation is enabled.

Claims

1. In a machining simulation which displays a shape of a material, a shape of a product, and a shape of a tool as images on a display unit, comprising

determining whether the material is a rod shape, molding, composite material and optional shape;

computing a machine allowance when the material is a molding or composite material;

moving the displayed image of the tool on the display unit on the basis of previously generated tool path data;

eliminating portions of the image of the material and of the image of the product which overlap the image of the tool in order;

displaying the shape of the product in accordance with a portion to be machined as a line image indicating only an outline of the product on the basis of dimension data of the product; and

displaying the shape of the material in accordance with the portion to be machined as a plane image indicating an area in correspondence with a machining allowance on the basis of machining allowance data, in case that the material includes the portion to be machined which is formed by adding the specified machining allowance to the outline of the product.

2. The method of displaying the shape of the material and the shape of the product in the machining simulation as set forth in claim 1, wherein the plane image indicating the shape of the material is formed by outwardly off-setting the line image indicating the shape of the product by the machining allowance.

3. The method of displaying the shape of the material and the shape of the product in the machining simulation as set forth in claim 1, wherein the shape of the product and the shape of the material in accordance with portions not to be machined are not displayed in case that the material includes the portions not to be machined.

4. The method of displaying the shape of the material and the shape of the product in the machining simulation as set forth in either of claims 1, 2, and 3, wherein the line image indicating the shape of the product is displayed by a pixel group corresponding the outline of the product and another pixel group which is inwardly arranged from the former pixel group at least by one pixel.