RU77484U1 - DEVICE FOR ENTERING INFORMATION IN NUMERIC SOFTWARE MACHINES - Google Patents

Abstract

A device for entering information into numerically controlled machines comprises a reader, a storage medium and a numerical control device that is directly connected to the numerically controlled machine. A memory cassette is used as a reader, and an electronic cartridge is used as an information carrier. The memory cassette is connected to the numerical control device with a special communication cable. The memory cassette is an electronic control board, which is enclosed in a housing with connectors for a cartridge and a special communication cable. On the cassette case there is a program selection indicator and two control buttons: PRESET and NEXT. An electronic cartridge is an electronic memory card, which is enclosed in a housing with a connector for connection to a memory cassette.

Description

This utility model relates to devices for controlling machine tools or other machines with programmed control and is intended for use as a reading device, namely, a device for entering information into machines with numerical control. The device can be used to input: part programs, proofreaders, parameters, constants, etc.

Closest to the claimed utility model is the "Photoelectric reader with punched tape" (EU 6121, Consul - 337.601 / A), consisting of a tape drive, lighting and optical photocell system, readout head, stabilized power supplies and an electronic control unit. The mechanical part of the device contains a drive motor with a starting capacitor, a mains transformer, a mains filter, a terminal block, a pulley and gears, with the help of which the rollers are moved to pull the tape forward or backward. And the electronic control unit is a rather complex system, which consists of a circuit for creating a “Device is ready” signal, a circuit for controlling tape movement and providing braking, a recording pulse generator, a circuit for creating a “Information is prepared” signal, a circuit for forming the captured information, output memory of signs and contours for setting the initial position of the sensor after turning on the network.

However, the known device has several disadvantages: it is cumbersome (large), technically complex, time-consuming

repair service, requires the presence of punched tape, as a carrier of information, and complex punchers for the preparation of punched tapes.

The claimed technical solution is aimed at improving the reliability of the device for entering information, simplifying the design and reducing the size.

For this, in a device for inputting information into numerically controlled machines consisting of a reader, an information carrier and a numerical control device directly connected to a numerically controlled machine, a memory cassette and an electronic cartridge are used as a reader and information carrier, respectively , as well as a special cable for connecting the cassette with the numerical control device, while the memory cassette is an electronic control board enclosed in the housing assembly for the cartridge and a special connection cable and is provided with a program selector and indicator PRESET and NEXT control buttons and electronic cartridge is an electronic memory card, enclosed in a housing with connector for connection with the cassette memory.

Figure 1 shows a block diagram of a device for entering information into machines with numerical control; figure 2 - shows a memory cassette and cartridge.

The device for entering information into numerically controlled machines consists of an electronic cartridge 1, a memory cassette 2 and a special communication cable 3 between the memory cassette 2 and the numerical program control device 4, which is directly connected to the numerically controlled machine 5.

The electronic cartridge 1 is an electronic memory board 6, enclosed in a housing 7. To connect to the memory cassette 2, the electronic cartridge 1 is equipped with a connector 8.

Cartridge 1 is a non-volatile drive,

intended for repeated recording, reading and storage of information. The cartridge can contain up to eighteen programs in two virtual banks. The size of the programs and their number can be arbitrary (up to eighteen) if they fit in the volume of the cartridge. If there is insufficient volume of one cartridge, information intended for loading into a numerically controlled device can be recorded on several cartridges. Without cartridge 1, the operation of cartridge 2 is not possible.

The memory cassette 2 emulates the operation of a photo-reading device and is an electronic control board 9 enclosed in a housing 10 on which a program selection indicator 11 and two control buttons are located: PRESET (reset button 12) and (shift button 13). The housing 10 is equipped with connectors 14 and 15 for connection with connectors 8 and 16, respectively. Connector 16 is placed on a special communication cable 3.

The indicator 11 of the selection of programs is intended to indicate the operating modes of the device, namely: to record and view the parameters of the device 4 with numerical program control, to record control programs, to record service programs.

The buttons 12 and 13 PRESET and NEXT, respectively, are used to set the operating modes of device 4 with numerical program control, namely: to record and view programs, to view blocks and program parameters recorded on electronic cartridge 1, to control programs against a checksum, for selecting a program for transmission to device 4 with numerical program control.

Bank b is designed to store only UP-type programs (control programs). Bank b. It is intended for storage of programs like UP and BIN (binary or service).

Bank b has programs 0 through 9; at the bank b. there are programs from 0. to 9 .; and programs 0 and 0. are empty, they are not associated with programs containing information. Programs 1 to 9 (bank b) and 1. to 9. (bank b.) Relate to programs containing information.

Programs such as UP are used as part programs on numerically controlled machines. Programs like BIN are more universal than programs like UP. Programs of the BIN type are used as utility programs for checking the material support of machines with devices with numerical software. When recording such programs from the disk, information from the file is recorded without any changes.

The number of the selected program is stored in the internal EEPROM of the processor and does not change until it is changed by the operator or another cartridge is inserted into the cartridge, in which there is no program with this number. When viewing program numbers on the indicator, only those programs that are recorded in the cartridge are blinked. If there are no programs in the cartridge, “0” is displayed on the indicator.

When a program is selected with the PRESET control button 12, its number is displayed without blinking, the device gives the MACHINE READY to the CNC. At the bank b. when viewing program numbers, a dot is also blinking. If the program is of the BIN type (service), then the dot glows without blinking in all modes.

A device for entering information into machines with numerical control is as follows.

The operator selects the bank (b or b.) Using the PRESET control button 12, then the program number using the NEXT control button 13. The “C” (CHECK) symbol will be displayed on the indicator. For a 256 kbyte program, checksum verification will be performed in a time not exceeding 6 seconds. If the checksum is correct, indicator 11 will flash the number of the program being monitored, otherwise an error will flash at the end of the program. When an error occurs, the indicator alternately displays the letter “E” and the number corresponding to the error (E0, E1, E2 ...). Errors include: software checksum error

processor support; no response from the IC cartridge; an error in the checksum of the boot sector of the cartridge; an error in the checksum of the selected program; the last byte of the program is transferred to the CNC, but the START FORWARD command continues to be received from the CNC; the initial byte of the program is transmitted to the CNC (during reverse), but the START REVERSE command continues to be received from the CNC.

During the transfer of the program to the CNC, the following modes of operation of the devices take place, accompanied by an indication:

- forward information output - the program number and the upper segment of the indicator alternately light, while the upper segment blinks at a frequency of 8 Hz; suspensions of the forward information is accompanied by alternate flashing of the program number and the upper segment of the indicator with a frequency of 1 Hz; the end of the information forward - by the glow of the symbol ≡

- information output back - the program number and the lower segment of the indicator alternately light, while the lower segment flashes with a frequency of 8 Hz; pauses of information output back - the program number and the lower segment of the indicator alternately light up with a frequency of 1 Hz; end of information output back - the program number is displayed (without blinking).

Information can be output to the CNC control unit (irreversibly) by pressing any button, the signal will be removed. THE DEVICE IS READY and the device switches to the task input mode.

Using the proposed technical solution allows you to:

- ensure reliability by detecting a large number of errors and due to the lack of a mechanical information storage device - punched tape;

- to simplify and facilitate the design due to the lack of a bulky photo-reading device.

Claims (3)

1. A device for entering information into numerically controlled machines, consisting of a reader, an information carrier and a numerical control device directly connected to a numerically controlled machine, characterized in that a memory cassette is used as a reader and information carrier an electronic cartridge, respectively, as well as a special cable for connecting the cartridge to the numerical control device, and the memory cartridge is an electronic control board, enclosed in a housing with slots for a cartridge and a special communication cable, and equipped with a program selection indicator and control buttons PRESET and NEXT, and an electronic cartridge is an electronic memory card enclosed in a housing with a connector for connecting to a memory cassette. 2. The device according to claim 1, characterized in that the control buttons PRESET and NEXT are placed on the cassette. 3. The device according to claim 1, characterized in that the indicator is placed on the cassette.