US 4,926,311 AGranted

Part profile input method

AssigneeFanuc Corporation

InventorsTeruyuki Matsumura, Noritake Nagashima

Life of this patent

Estimating the term…

Loading patent…

Abstract

A part profile input method for automatically creating NC data. The method includes conversationally inputting a part profile without giving any consideration to chamfering or rounding of corner portions of the part. At the end of part profile definition, a conversational display for inputting a corner shape is presented, computing the angle made by intersection of mutually adjacent profile elements and determining the position of an intersection to be regarded as an outside corner or inside corner by comparing each angle of intersection with a set angle. Under these conditions, when it is specified (i) whether the shapes of all corner portions (inclusive of outside and inside corners), the shapes of all outside corner portions or the shapes of all inside corner portions are to be defined collectively, and (ii) whether the shapes are rounded or chamfered shapes, the part profile is input by inserting the specified rounded shapes or chamfered shapes, which are in the form of preset dimensions, at the specified corners (all corner portions, all outside corner portions, all inside corner portions).

Claims4

Dependent claims

A part profile input method for an NC data creating apparatus in which a part profile is defined by inputting profile elements of a part using arrow keys and creating NC data for performing machining in accordance with the defined part profile, said method comprising the steps of:

(a) displaying, by the NC data apparatus, a conversational display for input of a corner shape on a screen of a display unit when a part profile definition is terminated;
(b) determining positions of all intersections to be regarded as corners by comparing angles of intersection between two mutually adjacent profile elements with a set angle;
(c) determining positions of all intersections to be regarded as outside corners or inside corners by discriminating whether the corner defines a projection or a cavity;
(d) specifying whether shapes of all outside corner portions or inside corner portions or shapes of all corner portions including all inside and outside corner portions are to be defined collectively and whether the shapes are rounded or chamfered shapes;
and
(e) defining the part profile by inserting the specified rounded shapes or chamfered shapes, being in the form of preset dimensions, at respective ones of all the specified outside corner portions or all the specified inside corner portions, or all the specified corner portions.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 07/265,799Filed 18 Oct 1988
Priority: JP 62-3727720 Feb 1987
Granted: 15 May 1990
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

G05B 19/40932
Concerning programming of geometry: shape input
G05B 2219/36221
Nc in input of data, input key till input tape: entry of chamfer, beveling, rounding of corner shape
G05B 2219/36333
Nc in input of data, input key till input tape: selection from standard forms, shapes, partprograms, enter value for variable
Y02P 90/02
Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation: total factory control, e.g. smart factories,…