Boots – shoes – and leggings
Patent
1985-12-13
1986-12-09
Smith, Jerry
Boots, shoes, and leggings
364136, 364200, 364900, G05B 1918, G06F 1500
Patent
active
046284427
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
1. Technical Field
This invention relates to a numerical control apparatus and, more particularly, to a numerical control apparatus well-suited for application to a numerical control system in which a numerical control apparatus and a machine tool are united into a mechanical-electronics arrangement.
2. Background Art
A computerized numerical control apparatus includes a numerical control unit comprising a microprocessor or the like and is connected to various input/output units by a data bus. FIG. 1 is a block diagram of such a numerical control apparatus. In the drawing, numeral 11 denotes a numerical control unit including a read/write data memory (RAM) 11a for storing machining program data and the results of processing, a read-only memory (ROM) 11b for storing a control program which controls all numerical control processing, a processor 11c for executing various kinds of processing such as processing for sensing and receiving signals, a pulse distributor 11d which receives a position command as an input and produces distributed pulses by performing known pulse distribution computations, and a servo circuit 11e for controlling the rotation of a motor. Numeral 12 designates a bus line having an address bus for transferring address signals and a data bus for transferring data. Numeral 13 denotes a paper tape reader for reading machining program data punched in a paper tape that is to be stored in the data memory 11a. Numeral 14 denotes a paper tape puncher for recording the machining program data by punching the data, stored in the data memory 11a, into a paper tape serving as an external storage medium. It should be noted that a magnetic cassette tape device and magnetic bubble cassete device may be connected to the unit in place of the date reader 13 and tape puncher 14. Numeral 15 designates a power magnetics circuit (data input/output circuit) for sending and receiving data between a machine tool and the numerical control unit. Specifically, the power magnetics circuit 15 delivers signals indicative of M-, S- and T-function instructions and the like from the numerical control unit 11 to a machine 19. This circuit also supplies the numerical control unit with various limit switch signals, relay contact signals and operation completion signals concerning the M-, S- and T-function instructions that are received from the machine 19. Numeral 16 represents a manual data input unit (MDI unit) equipped with a CRT. The MDI unit 16 allows manual entry of single blocks of machining data, and also permits correcting a machining program, partial deletion of and addition to the machining program, and other functions. Numeral 17 designates an operator's pendant provided with various switches and buttons such as a cycle start button, a mode selection switch, a jog feed button and a zero-point return button. Numeral 18 is a manual pulse generator for generating pulses in response to a manual operation. As shown in FIG. 2, an arrangement is also possible wherein the MDI unit 16 and operator's pendant 17 are connected to the bus line 12 through the power magnetics circuit (data input/output circuit) 15.
The numerical control unit 11 controls the machine tool by executing numerical control processing under the control of the control program on the basis of the machining program data stored in the data memory 11a. Simultaneously with the numerical control processing, the numerical control unit 11 monitors the status of the machine tool (such as the on/off state of various limit switches) received via the power magnetics circuit; monitors the state of the switches and buttons on the operator's pendant; and performs processing in accordance with the status of the machine tool and the states established by the operator's pendant. The reading of, e.g., data and operating states from the various devices 13 through 18 connected to the bus line 12, or the outputting of data to each of these devices is initiated by an interrupt or by applying address signals to an address bus to successively identify the devices an
REFERENCES:
patent: 3571802 (1971-03-01), Serra
patent: 3673576 (1972-06-01), Donaldson, Jr.
patent: 3970997 (1976-07-01), Daly et al.
patent: 4025906 (1977-05-01), Riikonen
patent: 4034354 (1977-07-01), Simmons
patent: 4038533 (1977-07-01), Dummermuth
patent: 4047159 (1977-09-01), Boudry
patent: 4052702 (1977-10-01), Smith et al.
patent: 4075691 (1978-02-01), Davis et al.
patent: 4079452 (1978-03-01), Larson et al.
patent: 4092714 (1978-05-01), Norton et al.
patent: 4200936 (1980-04-01), Borzak et al.
patent: 4298958 (1981-11-01), Takaki et al.
patent: 4314329 (1982-02-01), Crewe et al.
patent: 4368511 (1983-01-01), Imazeki
patent: 4396973 (1983-08-01), Imazeki et al.
Isobe Shin-ichi
Sawada Kazuo
Fanuc Ltd
Lastova John R.
Smith Jerry
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