Boots – shoes – and leggings
Patent
1989-06-05
1991-11-12
Ruggiero, Joseph
Boots, shoes, and leggings
21912162, 21912182, 21912183, G06F 1546, B23K 2600
Patent
active
050653300
DESCRIPTION:
BRIEF SUMMARY
CROSS REFERENCE TO RELATED APPLICATIONS
This application is related to the following copending applications assigned to the same assignee as this application: 07/298,745, U.S. Pat. No. 4,935,933 filed Jan. 12, 1989.
TECHNICAL FIELD
The present invention relates to a material processing high-output laser oscillator, and more particularly to a numerical control system for a material processing apparatus comprising a computerized numerical control system (CNC) and a laser oscillator which are coupled to each other.
BACKGROUND ART
A computerized numerical control system and a laser oscillator are coupled to each other to provide a numerically controlled material processing apparatus for carrying out more complex machining at high speed and with high accuracy.
FIG. 2 shows a control system for a laser oscillator and a work table of a conventional laser material processing apparatus. The laser oscillator, denoted at 1, is energized by a power supply 3 which supplies its output through a power supply cable 11 to the laser oscillator 1. In the laser oscillator 1, various devices such as a gas regulator which require sequence control are controlled by a programmable controller (PC) 2. The cable 9 transmits signals between the programmable controller 2 and the laser oscillator 1. The programmable controller 2 controls not only the laser oscillator 1, but also the power supply 3. An output laser beam from the laser oscillator 1 passes through a beam guide 6 to a beam focusing system 7 by which the output laser beam is converged onto a workpiece 8. The workpiece 8 is fixedly mounted on a work table 4 that is controlled by a computerized numerical control system (CNC) 5.
The conventional system as described above has the following problems:
The first problem is that the entire apparatus is large in size and complex and its components are separated. Therefore, its installation and maintenance are timeconsuming, and the space factor thereof is bad.
The second problem is that the data processing abilities of the computerized numerical control system 5 and the laser oscillator 1 or the power supply 3 are not balanced, and complex control of the laser oscillator 1 cannot be performed by the power supply 3.
The third drawback is that as the programmable controller 2 and the computerized numerical control system 5 have electrically common portions, the redundancy is high and the arrangement is not economical.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a material processing apparatus which will solve the above problems and which is small in size, of high performance, and economical.
To solve the aforesaid problems, there is provided in accordance with the present invention a numerical control system for a laser comprising a laser oscillator, an electric power supply for driving the laser oscillator, and a computerized numerical control system (CNC), comprising: sequence control means for controlling a sequence of operation of the laser oscillator; output control means for controlling output conditions of said laser oscillator; feedback control means for controlling the feedback of an output from the laser oscillator; display control means for displaying a condition of the laser oscillator; and table movement control means for controlling the position and speed of a work table, all of these means being controlled together.
By effecting sequence control, output control, feedback control, display control, and table control together, the numerical control system for the laser is made small in size and in high performance.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a block diagram of an embodiment of the present invention;
FIG. 2 is a view showing the arrangement of a conventional material processing apparatus;
FIG. 3 is a block diagram of the inside arrangement of the NC laser shown in FIG. 1;
FIG. 4 is a block diagram showing details of the power supply and laser oscillator shown in FIG. 1; and
FIG. 5 is a layout of the interior of the housing for the NC laser shown in FIG. 1.
DES
REFERENCES:
patent: 4547855 (1985-10-01), Lanyi et al.
patent: 4555610 (1985-11-01), Pocad et al.
patent: 4587396 (1986-05-01), Rubin
patent: 4626999 (1986-12-01), Bannister
patent: 4698480 (1987-10-01), Klingel
Karube Norio
Manabe Mitsuo
Fanuc Ltd.
Ruggiero Joseph
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