JPH04135125A - Transmission and reception system for wire electric discharge machining device - Google Patents

Abstract

PURPOSE:To prevent malfunction due to a noise from being caused, by transmitting an optical signal form a cordless control box at hand, and operating a wire electric discharge machining device. CONSTITUTION:When a device select switch 12, corresponding to a control device 21, is selected and pressed, a cordless hand control box 11 transmits an optical signal to the control device 21 through a transceiving part 14, and a transmission display lamp 13 of the pressed device select switch 12 is lighted. The control device 21 lights a reception display lamp 23 while controlling a transceiving part 22 so that an operational optical signal from a device operating part 17 can be received when a wavelength of the received optical signal agrees with the preset wavelength of the optical signal. At this time, a reception completion signal is transmitted to the hand control box 11 from the transceiving part 22. The hand control box 11, which knows the signal received to the selected control device 21 through receiving the reception completion signal, lights a reception completion display lamp 15. In this way, malfunction of a machine by a noise can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to an improvement of a hand-held operation box for remotely controlling a wire electrical discharge machining device.

[Prior Art] Fig. 2 is a schematic diagram showing a transmission/reception system of a conventional wire electric discharge machining device.
(2) is a cable, and (3) is a control device.

Next, the operation will be explained. Signals output based on the operation of the hand-held operation box (1) are sent to the control device (3) via the cable (2).

[Problems to be Solved by the Invention] In the transmission/reception system of the conventional wire electric discharge machining apparatus as described above, the hand control box (1) and the control device (3) are connected by a cable (2). , hand control box (1)
There was a problem in that the range of use of the cable (2) was limited by the length of the cable (2), making it inconvenient to use. Also, the cable (
2), there are disadvantages in that a wire electrical discharge machine (not shown) may stop midway due to wire breakage, or the machine may malfunction due to noise. Furthermore, since the cable (2) has a water-resistant structure corresponding to the surrounding environment, there is a problem in that the cost is high.

This invention has been made to solve these problems, and it prevents a wire electrical discharge machine from stopping due to cable breakage, and also prevents malfunction of the machine due to noise.
The purpose of this invention is to obtain a transmission/reception system for wire electrical discharge machining equipment that is easy to use.

[Means for Solving the Problems] A transmission/reception system for a wire electrical discharge machining device according to the present invention includes a device selection switch for selecting a wire electrical discharge machining device;
A first optical signal transmitter configured with an optical signal corresponding to the device selection switch, transmits the optical signal based on the selection of the device selection switch, and receives the signal from the wire electrical discharge machining device selected by the device selection switch. a first optical signal receiving section that displays a transmission completion display section when the completion optical signal is received within a preset predetermined time; and displays a transmission failure display section when the completion optical signal is not received within the predetermined time; , a cordless hand-operated operation box having an apparatus operation section that transmits an operation optical signal for operating the wire electrical discharge machining apparatus via a first optical signal transmission section; a second optical signal receiving unit that receives the optical signal or the operation optical signal; and determining whether the optical signal transmitted based on the selection of the device selection switch is the same as a preset optical signal; an optical signal determining unit that controls a second optical signal receiving unit to receive the operation optical signal of the device operating unit only when the optical signals are the same, and displays a reception display unit; and the optical signal determining unit and a second optical signal transmitter that transmits the reception completion optical signal to the first optical signal receiver when the optical signals are determined to be the same. be.

[Function] In the present invention, when the cordless hand control box is pointed at the wire electrical discharge machining device that one wishes to operate and the device selection switch corresponding to the processing device is selected, the first optical signal transmitter of the cordless hand control box transmits the signal to the wire electrical discharge machining device. An optical signal based on the selection of the selection switch is transmitted. The selected wire electrical discharge machining apparatus receives the optical signal via the second optical signal receiving section, and determines the optical signal using the optical signal determining section. When this optical signal is the same as a preset optical signal, 'the second optical signal receiver is controlled so that it can receive the operation optical signal from the cordless hand control box, and the reception display section is displayed. . At this time, the second optical signal transmitter transmits a reception completion signal to the cordless hand control box. The transmitted reception completion signal is received by the first optical signal receiving section of the cordless hand control box. This first optical signal receiving section starts counting time at the time the optical signal is transmitted, and when the reception completion signal is received, the counted time is within a preset predetermined time. displays the transmission completion display section.

The display on the transmission completion display section enables the wire electrical discharge machining apparatus to be operated by the apparatus operation section of the cordless hand-held operation box. Further, if the time between the transmission of the optical signal and the reception of the reception completion signal is outside the predetermined time, a transmission failure display section is displayed. The transmission failure display section is displayed when the device selection switch is selected incorrectly.

[Example] FIG. 1 is a block diagram showing one embodiment of the present invention.

In the figure, (11) is a device selection switch (12),
A transmission indicator lamp (13), a transmission/reception unit (14), a transmission completion indicator lamp (15), and a transmission failure indicator lamp (16).
) and a device operating section (I7) (hereinafter referred to as "hand-held operation box").

The device selection switch (12) is a control device (21), (3) provided in a wire electrical discharge machine (not shown), respectively.
1), (41), (51), and (61). Transmission indicator lamp (13)
are respectively provided in the device selection switch (12).

The transmitting/receiving section (14) includes a first optical signal transmitting section and a first optical signal receiving section, of which the first optical signal transmitting section receives an optical signal based on the selection of the device selection switch (12). (infrared rays), and the first optical signal receiving section is connected to the control device (21
), (31), (41), (51), (
61), and measures the time from when the optical signal is transmitted until the reception completion signal is received to determine whether it is within a predetermined time. When the measured time is within a predetermined time, the transmission completion display lamp (15) of the transmission completion display section is lit, and when the measured time is outside the predetermined time, the transmission failure display lamp (16) of the transmission failure display section is lit. .

The device operation unit (17) transmits an operation light signal based on the operation to the control device (21), (31) via the transmitting/receiving unit (14).
), (41), (51), (81),
Control wire electrical discharge machine.

(21), (31), (41), (51),
(81,) is a transmitting/receiving section (22).

(32), (42), (52), (62)
and reception indicator lamp (23).

(33), (43), (53), and (63), and an optical signal determining section (not shown) for controlling them.

Among them, transmitting/receiving sections (22), (32), (42
), (52), <62) consists of a second optical signal receiving section and a second optical signal transmitting section. For example, the wavelength of the optical signal is set in advance, and the optical signal determination unit determines whether the wavelength of the received optical signal is the same as that wavelength, and if the wavelength is the same, the optical signal is determined by the operation optical signal of the device operation unit (17). Transmitting/receiving sections (22), (32), (42) so as to be able to receive
, (52), (62), and the above-mentioned reception indicator lamps (23), (33), (43), (53), (
63) is turned on. At this time, the transmitting/receiving section (22),
(32), (42).

(52) and (62) transmit a reception completion signal.

Next, the operation when operating the control device (21) will be explained. When you select and press the device selection switch (12) corresponding to the control device (21), the hand control box (
11) transmits an optical signal to the control device (21) via the transmitter/receiver (14) based on the selected switch (12). At this time, the transmission indicator lamp (13) of the pressed device selection switch (12) lights up. Control device (21)
determines whether the received optical signal matches the wavelength of the optical signal set in advance, and if they match, the transmitting/receiving unit ( 22) and a reception indicator lamp (23).
lights up. At this time, the reception completion signal is sent to the transmitting/receiving section (22
) to the local operation box (11). Hand control box (1
1), upon receiving the reception completion signal, the selected control device (21) learns that the signal has been received and turns on the transmission completion indicator lamp (15).

If the reception completion signal is not received within a predetermined time after transmitting the optical signal, a transmission failure indicator lamp (16) is lit to indicate that the optical signal was not transmitted correctly.

This makes it easy to determine whether or not the message has been reliably transmitted. After the selection of the control device (21) is completed, the control device (21) is controlled by the device operation section (17) of the hand-held operation box (11) to operate the wire electrical discharge machine.

In the above embodiment, infrared light is used as an optical signal, but other optical systems may be used to control the control devices (21), (31).
), (41), (51), and (61) may be selected.

[Effects of the Invention] As described above, according to the present invention, the wire electrical discharge machining device is operated by transmitting optical signals from the cordless hand-held operation box, and the range of operation is expanded and the conventional method is improved. Thus, the wire electric discharge machining apparatus no longer stops due to cable breakage, and the wire electric discharge machining apparatus can prevent malfunctions caused by noise (electromagnetic waves) generated when machining a workpiece.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a schematic diagram showing a transmission/reception system of a conventional wire electric discharge machining apparatus. In the figure, (11) is a cordless hand control box, (12)
) is the device selection switch, (13) is the transmission indicator lamp, (
14), (22), (32), (42)
, (52), (62) are transmitting/receiving units, (15) is a transmission completion indicator lamp, (16) is a transmission failure indicator lamp, (
17) is the device operation section, (21), (31), (4
1). (51), (61) are control devices, (23), (
33), (43), (53) and (83> are reception indicator lamps. In addition, the same reference numerals in the figures indicate the same or corresponding parts. Agent: Patent Attorney Muneharu Sasaki

Claims (1)

[Claims] A device selection switch that selects a wire electrical discharge machining device, and a first optical signal that is configured with an optical signal corresponding to the device selection switch and that transmits the optical signal based on the selection of the device selection switch. When a reception completion optical signal is received from the transmitter and the wire electrical discharge machining device selected by the device selection switch within a preset predetermined time, the transmission completion display section is displayed, and when the reception completion optical signal is received within a preset time, A cordless handheld device having a first optical signal receiving unit that displays a transmission failure display unit when the transmission failure is not performed, and an apparatus operating unit that transmits an operating optical signal for operating the wire electrical discharge machining device via the first optical signal transmitting unit. an operation box; a second optical signal receiving section that receives the optical signal or the manipulation optical signal transmitted via the first optical signal transmitting section;
determining whether the optical signal transmitted based on the selection of the device selection switch is the same as a preset optical signal;
an optical signal determining unit that controls a second optical signal receiving unit to receive the operation optical signal of the device operating unit only when the optical signals are the same, and displays a reception display unit; and the optical signal determining unit and a second optical signal transmitter that transmits the reception completion optical signal to the first optical signal receiver when the optical signals are determined to be the same. Features a transmission/reception system for wire electrical discharge machining equipment.