SU807230A1 - Two-coordinate control device - Google Patents

Description

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The invention relates to automation and is intended to control two-coordinate systems, such as coordinate recorders.

A device for two-coordinate program control is known, comprising a generator, a counter, a reverse trigger, a control unit, a program input unit connected by an output to an input of a reader, the output of which is connected to the inputs of an AND element, an OR element. one .

The disadvantage of such a device is low accuracy.

The closest to the technical essence of the present invention is a single coordinate program control device containing a program input unit connected by an output through a control unit to the first input of the counter and the first input of the first register, and for each coordinate the first and second And elements and sequentially connected the first element OR , amplifier, executive element, feedback sensor and the third element AND, connected by the output through the second element OR to the second input of the counter, the first output

which is connected to the input of the D / A converter and to the first input of the multiplication element, connected to the first inputs of the second And elements, the first inputs of the first Epemiosis And and the second inputs of the second And elements are connected to the output of the first register and to the second inputs of the third And 2 elements.

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The disadvantage of this device is the low accuracy of operation.

The purpose of the invention is to improve the accuracy of the device.

The goal is achieved by introducing two integrators, two comparators, a second register and a pulse generator, the output connected via the first and second integrators with the first inputs

0 and the second comparators, the second inputs of which are connected to the output of the digital-to-analog converter, the first input of the second register is connected to the control panel’s zyho signal,

5 the second input - with the second output of the programmer's input unit, the second input of the first register and the third input of the counter, and the output - with the second input of the multiplication element, and the outputs of the comparators of each coordinate

connected to the second inputs of the first elements AND, and the second output of the counter connected to the second input of the control unit.

The drawing shows a block diagram of the device.

The device contains a program input block 1, a control block 2, counters 3, a second register 4, a first register 5, a digital-to-analog converter b, a multiplication element 7, a generator of 8 (clock) pulses, the first 9 and the second 10 integrators, the first 1 and the second 12 comparators , elements AND 13-16, elements OR 17 and 18, Amplifiers 19 and 20, actuators 21 and 22, feedback sensors 23 and 24, elements AND 25 and 26, element OR 27.

The device works as follows.

Based on a command from control unit 2, the program input unit 1, which distributes information to the 3 pulse counters of the co-ordinate coordinates, runs into the second rugist 4 corners of the second coordinate and the first register 5 of the auxiliary command memory. The digital-to-analog converter 6 converts the number corresponding to the magnitude of the leading coordinates to an analog value, which is fed to the integrator 9 and the comparator 11. At the output of the comparator 11, there are pulses with a constant frequency and duration proportional to the analog value of the analog signal motions, information about which are stored in register 5, pulses through the corresponding amplifier arrive at the first 21 or second 22 actuating element. The pulses from the feedback sensor 23 through the open element AND 25 and elementHT OR 17 arrive at the counting input of counter 3. When the pulses coincide in the corresponding bits of counter 3 and register 4, the multiplication element 7 generates a pulse whose duration corresponds to the movement of the actuator 21 by step discrimination. This impulse goes to the second 22 or first 21 actuators. By the overflow signal from the counter 3, through block 2, the second .kaiip information is read, and the operation of the devices proceeds similarly.

This invention allows markup to be performed on

two-coordinate systems with high accuracy with increasing speed, as well as increasing the load on the actuating elements of the device.

Claims (2)

1.Agursky M.S., Vulfson I.V. and Ratmirov V.A. Numerical software control of machines, m., Mashinostroenie, 1966, p. 147. 2. Av. Author's certificate of the USSR No. 448436, cl. .G 05 B 19/38, 1972 (prototype).