NC MACHINE TOOL PROVIDED WITH CUTTING EDGE TIP POSITION MEASURING FUNCTION OF TOOL

摘要

PROBLEM TO BE SOLVED: To perform the measurement of a cutting edge tip position of a tool which is rotated at rotary speed at the time of machining on an NC machine tool. ;SOLUTION: When tool dimension is measured, a tool 1 is moved to a measurement region of a line sensor 51 on a table 13 while rotating the tool 1 at rotation speed at the time of machining. A cutting edge tip position displacement amount of the tool 1 is computed by a cutting edge tip position displacement amount computing means 65 based on a position of a feed shaft detected by a feed shaft position detection means 73 when a light receive section 51c detects blocking of light, actually measured tool data obtained from an output pattern of the line sensor 51, and tool data such as kind of tool, length, diameter, etc., of the tool which is stored in a tool data storage means 67, and it is sent to a numerical control section 63 of an NC machine tool as tool offset amount.;COPYRIGHT: (C)1997,JPO