SU1335931A1 - Device for programmed control of floor polishing machine - Google Patents

Abstract

The invention relates to the automation of building and finishing machines and can be used in the construction of automated machines for grinding mosaic and other solid, washing-stone floors in industrial and public buildings. The device contains an ultrasonic X and Y coordinate sensor, a data converter, a unit for comparing the set parameters, a unit for generating setting parameters, a displacement sensor comprising a measuring wheel and a reducer, an angle-code converter, a voltage pulse generator, elements AND, OR, pulse edge selection blocks, subtracting and summing pulse counters, register. This device allows to significantly increase the reliability of operation, since the cycles of distance measurement by ultrasonic sensors are carried out with the same frequency as the restoration of the band number code. 2 Il. (L with 00 JV CO 00

Description

The invention relates to the field of automation of building and finishing machines and can be used to construct automated machines for grinding mosaic and other solid, monolithic floors in industrial and public buildings.

The purpose of the invention is to increase the offset made one revolution, and the code at the output of the converter 9 must correspond to the distance traveled with the corresponding division of the least significant bit. This code is rewritten into the first subtraction counter 14. Each information is used as an input signal for this counter.

the reliability of the operation of the device. Q Launch of ultrasound sensor 1 of FIG. 1 shows a block diagram of the device; in fig. 2 - time diagram of the device.

The device will contain an ultrasonic sensor 1, the X coordinate, an ultrasound 15 in the subtractive count, a pulse of 16 pulses. Since sensor Yj is transformed to 2, since trigger 17 is cocked, X coordinates, trigger 17 is also activated by this signal, summing counter 19 is set and code 1 is written

data breaker 3, block 4 comparison of set parameters, block 5 setting parameters, keypad 6, measuring wheel 7, gearbox 8, 20 converter 9 angle - code (for example, raster sensor), voltage generator 10, element 11 , blocks 12 and. 13 highlights of the back of the pulses (for example, collected on a K155LAZ chip), subtracting the counter of 14 pulses, element SHSh 15, subtracting the counter 16, flip-flop 17, register 18, summing counter 19 of the pulses and a displacement sensor (not shown).

The device works as follows.

On the typing field 6, the trajectory of the movement is dialed and the initial parameters are entered: Ho, YO - the coordinates of the starting point; max coordinates of the end point; LH - step: processing; , o, (j + uX - length

the decisive potential from one of its outputs enters element 11 and permits the passage of voltage pulses from generator 10 to the counting inputs of subtractive counters 14 and 16 pulses. The frequency of the generator is calculated in such a way that over the time between two successive

25 signals. A launch in the subtracting counter 14 could generate a Loan signal with the maximum possible distance traveled. Depending on the distance traveled

30 code, recorded in the subtractive counter of 14 pulses, and, therefore, the time of formation of the Loan signal. On a predetermined front of this signal, trigger 17 is reset and resolution is removed from AND 11. Thus, the number of pulses at the output of AND 11 is a sequential distance traveled code.

Impulses from the output of the element 11

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single pass. The machine starts the transfer- 40 enters the counting pass at the counting entrance. In the process of moving, the x-axis sensor 1 measures the current value by measuring the time interval between

signal generation Trigger and 45 Dits code 1, then in counter 16 by the name of receiving the reflected signal and through data converter 3 transmits information to block 4 of comparison of set parameters, where it is compared with the value of X. When gQ occurs, the machine. The accumulation of this band code

is produced by a summing counter 19. The code accumulated in the counter is rewritten into register 18 at each reset, the trigger 17 of the signals from its corresponding output. The code of the strip number from register 18 is rewritten to block 5 for generating settings, where the value of the coordinate is determined, and the corresponding deviation to the heading correction is given to the machine control unit. Simultaneously, after the start of motion, the code changes at the output of the transducer 9. Angle – code begins. The diameter of the measuring wheel 7 and the gear ratio of the gearbox 3 are chosen taking into account that the output-. Gearbox shaft in one cycle is re-55

The spacecraft made one revolution, and the code at the output of the converter 9 must correspond to the distance traveled with the corresponding division of the least significant bit. This code is rewritten into the first subtraction counter 14. Each information is used as an input signal for this counter.

in subtractive count; tach 16 pulses. As the trigger 17 is cocked, the X coordinate is measured. With the same signal, the trigger 17 is cocked, the summing counter 19 is set to zero and code 1 is written

0

the decisive potential from one of its outputs enters element 11 and permits the passage of voltage pulses from generator 10 to the counting inputs of subtractive counters 14 and 16 pulses. The frequency of the generator is calculated in such a way that over the time between two successive

5 signals. A launch in subtractive counter 14 could generate a Loan signal at the maximum possible distance traveled. Depending on the distance traveled

0 code, which is recorded in the subtractive counter of 14 pulses, and, therefore, the moment of the formation of the Loan signal. On a predetermined front of this signal, trigger 17 is reset and resolution is removed from AND 11. Thus, the number of pulses at the output of AND 11 is a sequential distance traveled code.

Impulses from the output of the element 11

five

counter 16. As for this signal, each signal is triggered from the ultrasonic sensor 1 and on each falling edge of the signal. The loan of the impulses divides the distance traveled L by the length of the passage L / 1. This ratio determines the code of the number of the band on which it is located.

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The lane corresponds to the coordinate Xd. At the same time, the measurement of the distance traveled along the Y axis is performed. When the distance is reached. The unit for comparing the specified parameters results in a command to end the first cycle of operation. After moving to the next lane, the operation of the device in the second cycle is similar to the work in the first cycle, only the machine moves from Utsone, in%,.

Such a construction of the circuit allows to significantly increase the reliability of the operation of the device due to the fact that in case of power failure, crash, etc. The code of the number of the lane on which the machine is located is restored in each cycle of measuring the distances. Since the cycles of measuring the distance with ultrasonic sensors are conducted with a frequency of 5-10 Hz, the code of the strip number in case of failure is restored with the same frequency.

Claims (1)

Invention Formula A software device for controlling a floor grinding machine that contains ultrasonic sensors of X and Y coordinates, the outputs of which are connected to the corresponding inputs of the data converter, the dial-up field, the first outputs of which are connected to the first set-up unit maintenance outputs, the outputs of which are connected to the first inputs of the comparison unit set parameters, the second inputs of which are connected to the outputs of the data converter, characterized in that, in order to increase the reliability of operation, a generator is introduced pulses, displacement transducer, angle-code converter. one the first and second subtractive pulse counters and a summing counter, the first and second blocks of the trailing edge of the pulse, memory register, trigger, AND element and the OR element, the output of which is connected to the control input of the first subtractive pulse counter, the first input to the output of the first block of the falling edge of the pulse and to the control input of the summing counter, the second input to the control input of the trigger, to the installation input of the summing and second subtractive pulse counter and to the output of the ultrasonic sensor ordinates X, the second outputs of the keypad are connected to the information inputs of the first subtractive pulse counter, the counting input of which is connected to the output of the element Nick the counting input of the second subtractive pulse counter connected by the information inputs to the outputs of the angle converter - code, and through the second block of the falling edge of the pulse - to the second setup input of the trigger, the first output of which is connected to the first input of the element I, the second output to the input of the register of the memory, the information inputs of which the output outputs are connected to the information outputs of the pulse adding counter, and the information outputs are connected to the information inputs of the setpoint generation unit, the output of the pulse generator is connected to the second input of the AND element, and the output of the first subtraction pulse counter to the input of the first pulse separation unit, connected to the output of the device software control machine. t L t