SU1213466A1 - Device for programmed control of positioning - Google Patents

Abstract

The invention relates to programming control devices and can be used to control an auto-operative galvanic line moving in 01 (a certain technological sequence from one working position to another. The device contains a positioning object displacement sensor, a reversing pulse counter, a program setting block, a control unit, a position sensor of a positioning object, a pulse counter, a multiplication unit, a shift register, a first and second amplifier blocks, an adder, a comparator. It makes it possible to increase the accuracy of the device, t; to. The braking of the object begins only when the object approaches the vicinity of the specified position, and the stop occurs either when the position sensor is triggered, or when the pulse counter is set to the specified position, and its speed, as in the device control in acceleration mode for march speed was implemented. 2 ill. Od 14 Od

Description

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The invention relates to software control devices and can be used, in particular, to control an auto-operation operator with a vanical line moving in a certain technological direction from one working position to another.

Figure 1 is given a functional diagram of the device; 2 shows a timing diagram of the operation of the device.

The device contains an object positioning sensor 1, a reversible counter 2 pulses, a program setting unit 3, a control unit 4, a positioning object position sensor 5, a pulse counter 6, a multiplication unit 7, a shift register 8, a second 9 and first 10 amplifier blocks, an adder 11 , comparator 12.

The displacement sensor is designed to issue signals for the actuator to test the movable 6b1.ekta; the signal of the sign is a signal of a different level O or 1, supplied to the control input of a reversible counter of 2 pulses, and a signal fed to the counting input of the counter of 6 pulses.

The reversible counter 2 pulses is intended to count the signals of the working positions when the object is moving in the forward or reverse directions.

The task block 3 program is intended for storing the code of the number of the next position of the object movement.

The control unit 4 is designed to test the control signals to the actuator of the object being moved.

The control unit 4 is a digital EAL 1st converter with an amplifier connected to its analog output. A direct current motor is connected directly to the amplifier.

The sensor 5 of the position of the positioning object is intended to issue signals of the position of the working positions to the 6 impulse counter input of the counter.

The pulse counter 6 is designed for dp counting (shngals for working out the executive ryukhanizm of a moving object.

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The multiplication unit 7 is designed to generate output signals supplied through the amplifier unit 9 to the control unit as a function of

multiply the output signals of the (cumulative) counter 6, pulses and register 8.

Shift register 8 is designed to store the binary code of the stopping position (a given position) of the object being moved. The adder 11 is designed to subtract input signals coming from the outputs of block 3 back anis

5 program and reversible counter 2 pulses and characterizing the codes of binary numbers contained in them, and issuing output signals to the comparator 12.

0 Comparator 12 is designed to convert the parallel code signals into a serial code of a binary number and output the latter to register 6.

5The device operates as follows.

in a way.

At the moment of the passage of the control of the object, past the working positions of the 5 position of the object,

Qi produces a pulse in a rotary counter 2 pulses. Depending on the direction of movement determined by the sign bit of the displacement sensor 1 (feedback), if the level of the sensor signal is equal to a logical zero, then the reversible count of 2 pulses operates in the Addition mode and, conversely, if the signal level is

I is equal to a logical unit, then the reversible counter of 2 pulses operates in the Subtraction mode, according to the signal of the 5 position sensor, which arrives at the reversal counting input

, sivny counter 2 pulses, the content of the reversible counter increases or decreases by. . Thus, assuming that the object began to move from the initial position in the forward direction, the contents of the reversible counter 2 pulses indicate the position number in the vicinity of which the object is at a given time.

5 Simultaneously, when the object is moving in the forward or reverse national direction, the counter. 6 pulses accumulate pulses produced by the sensor.

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displacement (feedback), and is reset each time the Lenin signal comes from the position sensor 5, i.e. at the time of the moving object passing by the working positions. Thus, the content of the accumulating counter indicates the exact location of the object being moved between a number of the working 1 positions. receipts in block 3 of setting the program 1F1 of the next binary code of the position number of the object being moved in accordance with the cyclogram of the technological process of processing from items in the electroplating baths, stipulating a certain order of passing the working positions (electroplating van) contents of the reverse counter 2 pulses through the block 10 amplifiers and an adder} 1 is subtracted from the contents of block 3 of the programmed tasks and the difference of these codes is entered into the comparator 12. If this difference is equal to one, i.e. if the object being moved is in the vicinity of a given position, then the shift register 8 is filled with unit 14H. The content of the (accumulating) pulse counter 6 and register 8 is logically multiplied in multiplication unit 7 and the unit code generated at its output goes through amplifier unit 9 to control unit 4 in which a command is generated to stop the actuator of the moving object, and when approaching the given In a position, the speed of the moving object is slowed down in direct proportion to the contents of block 7 multiplication.

If the difference between the contents of the block 3 of the program's task and the reversible counter of 2 pulses, recorded by the adder 11, exceeds the unit, i.e. the object is not located in the vicinity of a given position, the shift register 8 is filled with zero mn, with the logical multiplication unit 7 entering the maximum code into control unit 4 and the object being moved is moving with a march speed.

The device allows to increase the speed of the object and the reliability of its positioning.

The speed is improved due to the improvement in the speed schedule, as the object is braked 134664

It is found only when the object approaches the vicinity of a given position, and the object stops either when the position sensor is triggered, r or when the pulse counter is set to a predetermined position, which increases the reliability of positioning.

The device implements control in the acceleration mode for the 10th march speed, its retention and braking - the executive mechanism of the object being moved.

Improving the speed of the device while maintaining the accuracy of addressing reduces the time of movement of the object being moved from position to position, which is especially important for galvanic lines with a long

20 . ... - -. . Reduced travel time

the object being moved from position to position on a single galvanic line will increase its production capacity - by 20%, which is achieved by increasing the output of usable products, reducing downtime of technical equipment and operating costs.

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Claims (1)

Invention Formula A device for software control of positioning, containing a program setting block, reversible pulse counter, control block, positioning object displacement sensor, first and second amplifier blocks, characterized in that, in order to increase positioning accuracy and speed, an adder, comparator are entered into it , a shift register, a multiplier, a pulse counter, and a position sensor of a positioning object, connected by an output to the zero input of a pulse counter and to the counting input of a reversible counter pulses connected by a control input with a sign output of a displacement sensor, and bit outputs through the first amplifier block — with the first inputs of an adder connected by second inputs to the outputs of a program setting block, and outputs. to an input of a comparator connected by an output to the information input of the register the shift connected by the bit outputs to the corresponding inputs of the multiplication block; the second input a1 with the corresponding bit outputs of the pulse counter, and the outputs through the second amplifier unit with the inputs of the control unit, the counting input of the pulse counter is connected to the information output of the displacement sensor. -tf -. t S ceta right x x Rotation LEFT VNIIPI Circulation 837 Order 780/57 Subscription Branch PPP Patent, Uzhgorod, Proektna St., 4