Numerical control device including a thin type display unit and a printed circuit board connected to the reverse side thereof
AssigneeFanuc Corporation
InventorsMitsuo Kurakake, Masuo Kokura
Life of this patent
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Abstract
A CPU card, a servo card and a display card are replaceably mounted on a CNC controller-printed circuit board which is fixed to the reverse side of a liquid crystal display unit, and execute a CNC control function. Further, a Programmable Machine Control, a spindle interface circuit and a memory means are mounted on the printed circuit board. These elements are connected with a bus. This arrangements provide a small-size and thin-type CNC controller. The CNC controller is connected to each of servo amplifiers for axes through a serial servo including an optical fiber.
Claims21
A numerical control device comprising:
- a thin type display unit in which display input is a digital signal;
- a printed circuit board mounted to the reverse side of said thin type display unit so that it is opposite to said display unit, said printed circuit board comprising:
- a connector coupled to the thin type display unit,
- a bus,
- at least one card-like circuit coupled to the bus and comprising a processor and integrated circuits executing numerical control processing, said at least one card-like circuit replaceably connected to said printed circuit board through the connector, and
- a card-like circuit coupled to the bus and generating a control signal transmitted to said display unit through the connector, wherein the printed circuit board includes a surface area substantially equal to part of a surface area of said thin type display unit, and wherein the at least one card-like circuit and the card-like circuit are high-integration LSI and high-density surface mounting components.
A numerical control device comprising:
- a liquid crystal display unit;
- a CNC controller comprising a printed circuit board mounted to the reverse side of the liquid crystal display unit parallel to a plane including the reverse side of the liquid crystal display unit, said printed circuit board comprising:
- a bus,
- a numerical processing circuit executing numeral control processing and coupled to the bus,
- a servo processing circuit coupled to the bus and executing servo processing according to a movement command to a servo motor of an individual axis obtained through said numerical processing circuit, said servo processing circuit coupled to controller comprising servo amplifiers coupled in series with each other and with the servo processing circuit, and
- a display control circuit coupled to the bus and to the liquid crystal display unit and generating a signal display controlling wherein the surface area of the printed circuit board is substantially equal to part of a surface area of the liquid crystal display unit;
- and
- a cable electronically connecting said printed circuit board and said liquid crystal display unit to each other.
A numerical control device comprising:
- a CNC controller comprising:
- a printed circuit board comprising:
- a bus,
- a numerical processing circuit executing numerical control processing and coupled to the bus,
- a servo processing circuit, coupled to the bus and executing servo processing according to a movement command to a servo motor of an individual axis computed by said numerical processing circuit, and
- a circuit coupled to the bus and executing a personal computer function, so that the personal computer function is realized by using said printed circuit board, said circuit comprising a processor, a DRAM, an HDD control circuit, and a VGA control circuit.
Dependencies are inferred from the claim text.