Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Patent
1983-01-17
1985-12-03
Shoop, Jr., William M.
Electricity: motive power systems
Positional servo systems
Program- or pattern-controlled systems
364474, 318568, G05B 1900
Patent
active
045568332
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to a numerical control device for numerically controlling a machine such as a machine tool and, more particularly, to a numerical control device equipped with a function for creating numerical control information in a simple and rapid manner.
In recent years, machining operations have been automated by placing machine tools under the control of numerical control devices. In order to have a numerically controlled machine tool machine a workpiece in conformance with a drawing, the numerical control device (referred to as an NC) must be provided with numerical control information having a predetermined format.
Such numerical control information generally is created by programming based on manual calculations or for the control of machining for a plurality of three-dimensional shapes, the information is created by an apparatus incorporating a computer for creating the numerical control information automatically. These methods, however, require considerable experience to implement. In the case of programming using manual calculation, moreover, considerable programming time is required and programming errors are likely to occur. Furthermore, since the above methods of creating numerical control information are practiced by using an apparatus separate from the numerical control device, another disadvantage is the need for a separate input operation requiring a great deal of time to enter requiring a great deal of time to enter the numerical control information into the numerically controlled device.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide a numerical control device in which numerical control information can be created and entered in simple and rapid fashion.
Another object of the present invention is to provide a numerical control device which is capable of creating numerical control information within the numerical control device in accordance with information input to the numerical control device.
According to the present invention, a numerical control device is provided with a function for creating numerical control information. This function is achieved by storing, in a storage unit external to the numerical control device, machining data defining various fundamental shape patterns for mechanical machining; entering a part code from an input unit; reading machining data specified by the part code out of the storage unit; and separately entering, e.g., numerical values indicating dimensions or machining conditions to complement the machining data, wherein an editing processor creates numerical control information by using the machining data read out of the external storage medium as well as the separately entered numerical values or machining conditions. The numerical control information is stored in an internal memory connected to the processor of the numerical control device.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a block diagram of a numerical control device embodying the present invention;
FIG. 2 illustrates shape elements used in the present invention to define various shapes to be machined;
FIG. 3 illustrates the relationship between shape elements and symbols according to the present invention;
FIG. 4 shows a profile defined by shape elements according to the present invention;
FIG. 5 is a front view of an integrated keyboard, graphic display unit and bubble cassette adapter according to the present invention; and
FIGS. 6 and 7A-7F illustrate entering dimensions according to the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
An embodiment of the present invention will now be described in detail with reference to the drawings.
FIG. 1 is a block diagram of a numerical control device embodying the present invention. In FIG. 1, numeral 101 denotes a paper tape bearing punched numerical control information, 102 denotes a numerical control device (hereinafter NC) constructed in the form of a computer, 103 denotes a machine tool, 104 indicates a data input unit (hereinafter MDI), and 105
REFERENCES:
patent: 3895354 (1975-07-01), Kish
patent: 4152765 (1979-05-01), Weber
Supplementary European Search Report, The Hague, Examiner: J. P. Ressenaar Completed: 10/3/84.
Kishi Hajimu
Seki Masaki
Takegahara Takashi
Tanaka Kunio
Bergmann Saul M.
Fanuc Ltd.
Shoop Jr. William M.
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