JPS61161597A - Numerical controller - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical distribution of the invention] The present invention relates to a numerical control device, and in particular to dark signal transmission between the numerical control device main body and controlled equipment, and arrangement of a central processing unit.

[Prior art]

In conventional numerical control devices, the processing of signals such as input/output signals of controlled equipment such as machine tools and robots is processed by the central processing unit (CPtJ) installed in the main body of the numerical control device. As the number of signals transmitted between the target device and the numerical control device increases,
A large number of connection cables were also required. In addition, since cables made of electric wires are used, it is difficult to increase the distance between the controlled equipment and the numerical control device from the standpoint of noise resistance.In other words, conventional numerical control devices Because there are a large number of cables, installation is time-consuming), and because the distance between the equipment to be controlled and the numerical control device itself cannot be far apart, there is little flexibility in equipment installation.For example, it is difficult to install multiple numerical control devices on one production line. If you also use a machine, there is a problem that it is difficult to centrally manage the control side devices in one place.
[Summary of the Invention] Jin's invention was made specifically to solve the above-mentioned problems, by providing a slave central processing unit on the machine side,
This central processing unit performs data processing such as sequence processing of input/output signals of the machine, and the machine side and the mask central processing unit fi! - between the numerical control device main bodies having,
The electrical signals transmitted between them are connected by an optical fiber cable through an electrical/optical signal converter that converts them into optical signals, and by providing a hand-held operation box connected to the machine input/output interface, the device A highly reliable numerical control device that shortens installation time, reduces costs, improves efficiency during various inputs, and offers greater freedom of installation! [Embodiment of the Invention] An embodiment of the invention will be described below with reference to the drawings.

Figure 1 is a block diagram of NO in an embodiment of the invention, Figure 2 is a block diagram of the machine side control device in an embodiment of the invention (ζ), and Figure 3 is an embodiment of the invention. FIG. 4 is a schematic diagram of the hand-held operation box in an embodiment of the present invention, and FIG. 5 is a diagram showing the external appearance of the hand-held operation box. , (1) is Δ0.<2) is the master (3
In the PU, for example, in a microprocessor, (3) is a memory, which is composed of AM and R (JM).

(4) is a burden on CPU (2) of 1tIl&! <SuruTkome (7) DMA (direct memory accesses
s) Near controller (hereinafter referred to as DMA0), (
5) is a parallel/serial converter (hereinafter referred to as 810)
, (6) is an electrical/optical signal converter, Maγko, the second
In the figure, αG is a machine-side control device, (b) is a slave CPU, for example, a microblock sensor, @ is a memory,
Generally consists of AM or RAM and ROM. , tL3 is a machine input/output interface, and machine α4 glue 2...
Input of Sui Richi (to) of Tosui Tsusen etc., lamp Oe
For example, the output interface is composed of a switch, a Funolta circuit using a CR for manual input, a lamp drive transistor circuit, etc.

The wires are a plurality of optical fiber cables connecting the NO(1) and the machine-side control device αG.

In Figure 8, ζ indicates the machine side, where the machine side C3) is installed in the factory, and the No side (1) is installed, for example, in a remote central control room. , 1'l
lO side ■, that is, N O (1), machine side 61) and I,?
・Connected with optical fiber cable (7).

Furthermore, in FIGS. 4 and 5, the group is a hand-held operation box connected to the machine input/output interface (to) by serial signals, which is held and operated by the operator.
ψυ is a keyboard with a T-wall waterproof structure to prevent malfunctions due to contamination with machine oil, etc. , e211. r
The liquid crystal display, the input/output interface, and the parallel/serial converter. In the above configuration, the machine input signal from the machine α is data processed and converted into a backlight signal, ΔC(1) For example, in machine tools, sequence processing is performed as a sequencer, such as what number 11 should be used when changing a tool, and what prohibitions should be used in this case. is converted into a light signal by CPUQI) and memory (2) and transmitted to NC(i)-\7 or 1
The operator holds this hand-held operation box connected to the machine input/output interface 7/8 (2) via serial signals, and inputs tool length correction data, manual data input, and tenoching braker. Tenoching inputs, etc., are performed by operating the flat keyboard (■) according to the display on the liquid crystal display. The input data passes through the input/output interface, enters the parallel/serial converter, becomes a serial signal, enters the machine input/output interface (to), is converted into a SLEY code, and is transmitted to NO(1). 8. When data is displayed on the liquid crystal display Q, the data flows through a route opposite to that described above. In addition, from No. (1), the machine side control device α
Command signals and the like sent to G are also converted into optical signals and transmitted.

Although the above embodiment has been described with respect to a numerically controlled machine tool, the machine side may be the main body of a nest robot, and the present invention can be similarly applied to an industrial machine using a plurality of sequencers or the like.

The case where a liquid crystal display is used as the display device is explained.
This is Electrolumine I sense (electr.

A similar effect can be obtained by using ``luminescence''.

〔Effect of the invention〕

As described above, according to the present invention, since electrical signals are converted into light, the N(3) and the main body of the machine can be installed separately from each other. It has a large degree of freedom and allows centralized management of control devices.

There are 4 CPUs on the machine side for data processing, so no
The number of signals sent to the side is reduced, and the number of connection cables is reduced, reducing installation time.

Cost can be reduced.

Since it uses optical fiber cable, it has high noise resistance. In other words, it is possible to obtain a highly reliable numerically controlled bag wL. Well, since the hand control box is provided separately from the machine side device,
Even if the machine side equipment and the machine are installed far apart, there is an effect that various inputs can be made while watching the operation etc. from close to the machine.

[Brief explanation of the drawing]

FIG. 1 shows No blow I in Cζ, an embodiment of the present invention.
2 is a flow diagram of a machine-side control device in an embodiment of the present invention, FIG. 8 is a block diagram showing the overall configuration in an embodiment of the present invention, and FIG. A blow-out diagram of the hand-held operation box in the embodiment, and FIG. 5 is an external view of the hand-held operation box. In the figure, (1) is No, (2) is Master 01'U, (6
) is the electric/optical signal converter, αQ is the machine side control device, αυ
is the slave CPU%. The wire is the optical fiber cable, and the ring is the hand control box.

Claims (1)

[Claims] The device to be controlled is provided with a slave central processing unit that performs part of the data processing required by the numerical control device, and a hand-operated operation box connected to this slave central processing unit.
A numerical control device body having a master central processing unit and the above-mentioned controlled devices are connected by an optical fiber cable via an electrical/optical signal converter that converts the electrical signals transmitted between them into optical signals. A numerical control device featuring: