초록 ▼

The invention primarily concerns improvements to turning, grinding milling and other machining processes using electro-optical sensors for analyzing images or patterns related to tools used to work objects. Also disclosed are unique electro-optical sensing methods and apparatus in their own right, c

The invention primarily concerns improvements to turning, grinding milling and other machining processes using electro-optical sensors for analyzing images or patterns related to tools used to work objects. Also disclosed are unique electro-optical sensing methods and apparatus in their own right, capable of high accuracy measurement required for modern industry. In a preferred embodiment of the invention, a two axis image analysis of the backlit tool edge is performed to determine tool position, damage, or wear, and where desired appropriate control steps taken to reposition or change the tool. In another preferred embodiment the tool itself is equipped with optically sensed contact members according to the invention to measure the part produced with the tool, or to determine the deflection of the tool.

대표청구항 ▼

[ What is claimed is:] [1.] A method for determining, in a machine tool, an edge related characteristic of a tool used to work a part, comprising the steps of:(a) illuminating the edge of said tool with light such that some of said light passes said tool edge;(b) imaging said light passing said tool

[ What is claimed is:] [1.] A method for determining, in a machine tool, an edge related characteristic of a tool used to work a part, comprising the steps of:(a) illuminating the edge of said tool with light such that some of said light passes said tool edge;(b) imaging said light passing said tool edge onto an electro-optical image sensing device;(c) analyzing said image to determine the position of a plurality of points on said edge; and(d) from said analysis of said edge position, determining a characteristic of said tool.