SU635460A1 - Engraving machine programme control device - Google Patents

Description

I

This invention relates to automation and computer technology and is intended to control an engraving machine.

PT is well-known contour device for software control of multioperational machines, consisting of serially connected program input unit, interpolator, switch, whose outputs are connected to the inputs of the correction task unit, technological command activation unit, tool selection unit and executive relay unit.

The closest technical solution to the invention is a device for software control of an engraving machine, comprising a first key, a counter, a NOT item, a first switch and a second key connected in series, a program input unit, a second switch, an interpolator, and a drive control unit. The first counter input is connected to the second output of the second switch, the second interpolator output via the second switch, and the third output is directly connected to the inputs of the program input unit, the output of the second switch is connected to the input of the interpolator. The device also contains a cyclic subroutine input unit, a zero allocation circuit and a subroutine number control circuit, the inputs of which are connected2

to the first and second switches, and the output to the first key, the output connected to the cyclic subroutine input unit, the second input of which is connected to the output of the interpolator, the third output of which is connected to the counter, the output connected to the allocation circuit zero. The output of the allocation circuit zero is connected to the second key and through the element NOT to the FIRST KEY}.

In this device, in the main program, the addresses required for the letters that are in the cycle of the subroutine are recorded, and when the device (letter) is engraved, the device operates from the input block of the cyclic subroutine.

Known devices provide control signals for each component.

each letter (number), therefore, to engrave one letter (number), it is necessary to work out several frames of initial information. The purpose of the invention is to expand the functional capabilities of the device, namely, to enable the device to issue control signals for engraving all letters (numbers) to a single frame of information.

This is achieved in that the device is connected in series with a decoder and a unit for specifying the amount of movement, the output of which is connected to the first input of the first switch, the second input of which is connected to the second output of the interpolator, the output of the decoder is connected to one of the inputs of the second key and NOT through the first input of the first key, the second input of which is connected to the third output of the interpolator, and the output to the second input of the counter, the output of which is connected to the input of the decoder. The drawing shows the functional diagram of the device. It includes the program input block 1, the switch 2, the counter 3, the decoder 4, the block 5 specifying the displacement amount, the switch 6, the interpolator 7, the drive control block 8, the key 9, the HE element 10 and the key 11. The device works as follows . The main program contains information for processing transitions, as well as information about the letters to be engraved. This information represents a specific number for each letter; this number is defined as follows. If the address to the first letter is written as a unit, and for engraving the whole letter, n frames of information are needed, then the reference to the next letter is written with the number n + 2}. The number "+" is the end of the call to the encoder. The next letter occupies / g information frames, then the number (n + 2) + / e + l is also the end of the call to the encoder, etc. When the system is turned on, counter 3, second switch 2 and first switch 6 are in zero state In this case, a signal appears on the control output of the decoder and the second key 9 is prepared at the control input. After the signal from the interpolator 7 starts the input to the inputs of the switch 6 and the key 9 turns on block 1. Information from the output of block 1 is fed to the input of switch 2. Information about moving the tool along non-standard curves and transitions goes from switch 2 to the input of interpolator 7 , and the information on engraving a letter recorded by a certain number is recorded in counter 3. Upon completion of entering each frame of information, interpolator 7 issues a "end of input signal" that stops unit 1. When recording movement information art curves and transitions in the interpolator 7, it is converted and fed to the input of the drive control circuit 8. After the processing of each frame is completed, the interpolator sends a signal "start input, which, after passing through key 9, starts block 1. In this case, the device conducts 0 processing of the part according to the main program. This continues to the frame where the information is recorded as an engraving letter . This number comes from the output of switch 2 to counter 3. By the number in counter 3, decoder 4 outputs a signal to one of the inputs of block 5. Decipher 4 is designed so that if there are 3 numbers O in the counter, (n + 1), + 2 + th + 1), and so on. - there is a signal at the control output of the decoder 4, and if there are numbers from the rows - n; (l + 2) - (/ g + 2) + d, etc., is the signal at any one of the outputs connected to block 5, and if there is a number in the counter from any row, the signal can be at one and the same output, as in the writing of letters there are common components. Thus, after writing the number to counter 3, the signal at the control output of the decoder 4 disappears, the key 9 at the control input is closed, and the key 11 is prepared, a signal appears at one of the outputs connected to block 5. This signal from the block 5, the first frame of information is selected for engraving the letter and through the switch b with the signal "start of input is recorded in interpolator 7. The signal" the end of input stops block 1 and through key 11 adds 3 to the number in the counter. The decoder 4 generates a signal at another input of block 5, but this frame of information is recorded in the interpolator 7 only if there is a signal to start the input, which comes after the previous frame has been processed. After entering the second frame of information on the letter engraving into interpolator 7, one is again added to counter 3, and so on until the last frame of information required for letter engraving is selected. At this time, in the counter, for example, the number (n + or (/ g + 2) + + lj, by which the decoder 4 outputs a signal on the control output. The key 9 is prepared on the control input, and the key 9 is NOT 10. Prohibition is imposed. After the interpolator 7 has processed the last frame of information, the interpolator gives a signal to start the input, which includes block 1 through key 9. The newly entered information may have the number of calls to block 5 to engrave the next letter or non-standard tool movement . Introduction to the device Program control unit for setting the displacement amount, the decoder allows you to expand the functionality of the device, namely, the device provides control signals to engrave the entire letter (digit) in one frame of information. This reduces the time to maintenance and simplifies the process of compiling the program, as well as reliability of the device increases.

Claims (2)

1. USSR Author's Certificate No. 455323, cl. G 05B 19/18, 1971. 2. USSR author's certificate number 408276, cl. G 05B 19/18, 1971.