Boots – shoes – and leggings
Patent
1984-04-04
1987-01-20
Eng, David Y.
Boots, shoes, and leggings
371 20, 371 25, G06F 1122
Patent
active
046384553
DESCRIPTION:
BRIEF SUMMARY
CROSS REFERENCES TO RELATED APPLICATIONS
This application is related to the U.S. application having Ser. No. 599,616 by the same inventor and assigned to the assignee of the present invention, now abandoned.
The present invention relates to a function diagnosing system for diagnosing functions of devices which operate in accordance with command programs, such as a machine tool and the like, and more particularly to a function diagnosing system which permits automatic detection and regulation of a malfunctioning part.
It is customary in the prior art that when a malfunction occurs in a machine tool or the like which operates in accordance with a command program, maintenance personnel test each part of the device using a measuring instrument to detect and regulate an affected part. Therefore, the prior art method is defective in that much time is consumed for detecting and regulating the malfunctioning part.
SUMMARY OF THE INVENTION
The present invention is to obviate such a defect of the prior art and has for its object permitting the detection of a malfunctioning part in a short time and automatic regulation of the affected part.
The present invention is provided with a memory for storing a diagnostic program which is started when diagnosing a function of a device, regulating means, each provided corresponding to one of blocks of the device, for regulating the level of an output signal of the block, and a control unit for controlling the operation of the device. Upon detection of a diagnostic instruction inserted into the diagnostic program, the control unit starts the diagnostic program to diagnose the function of the device and controls the regulating means so that the level of the output signal of each block of the device becomes a predetermined level; therefore, each part of the device can easily be adjusted.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a block diagram illustrating an embodiment of the present invention;
FIG. 2 is a diagram showing, by way of example, the contents of a command tape;
FIG. 3 is a block diagram illustrating the arrangement of a regulation circuit; and
FIG. 4 is a flowchart showing the contents of processing by the control unit.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
FIG. 1 is a block diagram illustrating an embodiment of the present invention as being applied to a tracing machine. In FIG. 1, reference character TR indicates a tracer head, ST a stylus, SW a changeover switch which when a control signal a applied thereto via a data output device DO is a "1", provides displacement signals .epsilon..sub.x, .epsilon..sub.y and .epsilon..sub.z from the tracer head TR to a displacement calculation circuit DG and an indexing circuit IND. When the control signal a is a "0", the changeover switch SW provides output signals x, y and z of DA converters DA1 to DA3 to the displacement calculation circuit DG and the indexing circuit IND, instead of applying the displacement signals .epsilon..sub.x, .epsilon..sub.y and .epsilon..sub.z. ADD is an adder, ARN and ART velocity component calculation circuits, DC a distribution circuit, GC a gate circuit, DX, DY and DZ servo amplifiers, and MX, MY and MZ motors. AS is an analog switch, AD an AD converter, DI a data input device, CPU a control unit, and SW1 to SW3 switches each of which is turned ON when a control signal b applied thereto via the data output device DO is a "1" and is turned OFF when the control signal b is a "0". DIS is a display unit, TRE a tape reader, KB a keyboard, and M1 a data memory in which are stored data such as two-way tracing, one-way tracing, contour tracing and other tracing modes, a tracing direction, a tracing speed, a pick feed value and so forth. M2 is a program memory in which are stored a control program and a diagnostic program, and S1 to S4 are regulation circuits which respond to regulation control signals h to k applied thereto via the data output device DO to regulate the levels of the output signals .epsilon. and d to g of the displacement calculation circuit DG, the velocity component calcu
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Eng David Y.
Fanuc Ltd.
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