Browse Prior Art Database

Resetting Machine Tools

IP.com Disclosure Number: IPCOM000087491D
Original Publication Date: 1977-Feb-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 3 page(s) / 50K

Publishing Venue

IBM

Related People

Dillan, GO: AUTHOR [+3]

Abstract

A machine tool, such as a multiple turret machine, component insertion machine and the like, often have a so-called home or reset position from which all operations can proceed in a reliable and faithful manner. A computer-controlled machine tool includes operations for controlling the location of an article carrier movably disposed on a machine bed. The article carrier is designed to support and carry a plurality of articles B-H which are imprecisely located on the carrier in a contiguous manner. Because of the imprecise location, each of the carried articles B-H, have an index mark for signifying the precise location of the carried article with respect to a work station.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 52% of the total text.

Page 1 of 3

Resetting Machine Tools

A machine tool, such as a multiple turret machine, component insertion machine and the like, often have a so-called home or reset position from which all operations can proceed in a reliable and faithful manner. A computer- controlled machine tool includes operations for controlling the location of an article carrier movably disposed on a machine bed. The article carrier is designed to support and carry a plurality of articles B-H which are imprecisely located on the carrier in a contiguous manner. Because of the imprecise location, each of the carried articles B-H, have an index mark for signifying the precise location of the carried article with respect to a work station. As shown in the plan view, the mark may be an optical line on an upper surface of a rectangular article B which, when placed in the rightmost position on the article carrier, indicates a home position for the machine, i.e., home is indicated by the carried articles, not a machine part.

In many machines, the relative position of the carried article and the work station reference point A requires a high degree of precision. It is so precise that, in locating the carried articles with respect to point A, the article carrier is always moved by the computer-controlled motor M, in the same direction, i.e., the approach toward an operating relative position is always from the left position, as shown in the drawing.

The machine tool is designed to accommodate diverse articles. Such diversity includes variable widths of rectangular articles, as well as variable locations on the articles for providing diverse precise locations of diverse articles with respect to the work station. An important aspect of machine operation is to ensure that all functions begin precisely at the home position. Accordingly, upon the ending of a machine operation which may be a machine boring a hole, comp...