RU2117977C1 - Device for cycle program control - Google Patents

Abstract

FIELD: manufacturing of machinery tools, in particular, equipment for automatic control of processing equipment, such as automatic production lines, transfer machines and automatic mechanical processing tools. SUBSTANCE: device has control boards for control of mechanisms in each position and have indicators of state of actuating mechanisms, and logical control unit, which inputs are connected to detectors of position of actuating mechanisms. Goal of invention is achieved by introduced operation mode selection unit, switching button for running chosen mode. They are connected to inputs of logical control unit. In addition device has decoder, which inputs are connected to outputs of logical control unit and outputs are connected to inputs of memory register, which outputs are connected to indicators of state of actuating mechanisms. EFFECT: simplified design, increased field of application, increased reliability. 1 dwg

Description

 The invention relates to machine tool industry, to the field of automatic control of cyclic software systems and can be used to control various technological equipment, in particular, automatic lines, modular machines and machines for machining.

 Known devices for cyclic program control of an automatic line, containing a programmer that provides control of technological equipment according to a given cycle, an object matching device that converts programmer commands to executive commands and matches and converts feedback commands, an executive device that processes the cycles specified by the program, and a device feedback signaling the end of the development of the program stage by the working bodies of the machine (Wed ibner L.A. Cycle software control of equipment.-M.: Mechanical Engineering, 1980, p. 10 - 11, Fig. 2).

 The closest in technical essence to the claimed technical solution is a device for cyclic program control of an automatic line, containing control panels for the mechanisms of each position of the automatic line, containing elements for indicating the status of the mechanisms, and a logical control unit, to the inputs of which sensors of position of the mechanisms are connected, and to the outputs - Executive elements of the control mechanisms (V.V. Krylenko and others. Management of automatic lines using computers. -M.: Mechanical Engineering, 1983, p. 16 - 17, Fig. 1). This device is taken by us as a prototype.

 The disadvantage of the prototype device is that to ensure the autonomous operation of mechanisms at each position of the cycle, there is a control panel that has an individual circuit and constructive solution, including the number of control buttons and wires required to control the mechanisms of this position, both for connecting buttons and for indicator management. So the remote control that controls M mechanisms contains 2M control buttons and 2M wires, and the control M + 1 mechanisms contains 2M + 2 wires and the same number of control buttons, which reduces the reliability of the device due to the large number of contact connections. All this complicates the design of the device and leads to an increase in the complexity in the design and manufacture of control devices.

 The purpose of the invention is to simplify the device and increase its versatility and reliability.

 To this end, in a cyclic program control device containing control panels for mechanisms of each of the positions, including elements for indicating the status of mechanisms, and a logical control unit, to the inputs of which sensors of position of the mechanisms are connected, and to the outputs are executive elements for controlling mechanisms, according to the claimed technical solution in each of the control panels introduced a node for selecting operating modes, a button for switching on the execution of the selected mode and a button for switching off the execution of the selected mode, connect chennye to the inputs of a logic control unit and a decoder having inputs connected to the outputs of the logical control unit and the outputs - a storage register inputs, the outputs of which are connected to the elements of the status display mechanisms.

 The inventive device cyclic program control has a simpler circuit and constructive solution, since all control panels are made the same in it, which reduces the number of control buttons and the number of wires for connecting buttons and for controlling indicators, and increases the reliability of the device due to reduce the number of contact compounds. Each of the remotes can be installed on any of the positions of the cycle, which increases the maintainability and versatility of the device.

 The drawing shows a functional diagram of a device cyclic software control of technological equipment.

 The inventive device contains a logical control unit 1, the inputs of which are connected to the position sensors of mechanisms 2.1-2.k, and the outputs are electrical windings of actuators 3.1. -3.m, where k is the total number of sensors, m is the total number of actuating controls, control panels 4, in which the node 5 selects the operating modes, button 6 to enable the execution of the selected mode, button 7 to turn off the execution of the selected mode (in the diagram elements 4.1 .1-4.1.n) are connected to the inputs of the logical control unit 1, and the elements 8 indicate the status of the mechanisms (in the diagram elements 8.1. -8. P., Where p is the total number of indication elements) through the memory register 9 and then through the decoder 10 (in the diagram, elements 4.2.1 - 4.2. n, where n is the number of technological equipment products) are connected to the outputs of the block 1 logic control.

 The device has the following control modes: automatic, semi-automatic, group (control of a group of mechanisms) and a series of adjustment modes (each of which can be used to control one mechanism), quantified by the number of mechanisms in the controlled equipment. Any other modes necessary for the operation of specific equipment are possible, but their number cannot be more than 1/3 of the number of display elements (no more than 1 / 3p), confirming the correct choice of the required mode. Changing the mode is carried out using the node 5 mode selection, which is used as two buttons: the first is "increase the mode number by 1", the second is "reduce the mode number by 1".

 Each mode corresponds to three display elements, for example, LEDs, and the inclusion of the first LED confirms the correct choice of the required mode, and the other two display elements indicate the execution of commands from buttons 6 and 7: from button 6 - enable execution of the selected mode (enable the mechanism in working condition) , from button 7 - disables the execution of the selected mode (bringing the mechanism to its original state).

 If the LED is on, this means that the command from the on / off body of the selected mode is executed, if it is off, the command from the on / off body of the selected mode is canceled, and if the LED blinks, the command from the on / off button of the selected mode is executed.

 In addition, the remote control may have display elements representing information about various malfunctions of the mechanisms.

 The device operates as follows.

 The selection of the operating mode of the device is carried out by pressing any button of the node 5, which changes the state of the counter of the logical control unit 1. After executing this command, the output signal from the logical control unit 1 is fed to the input of the decoder 10 and then through the register 9 to the display element 8.1-8.р. The indicator light confirms the passage of the "mode selection" command.

 After setting the mode by pressing the button 6 to enable the execution of the selected mode (turning the mechanism on), a command is given to the logical control unit 1 to execute this mode. The logical control unit 1, using signals from the sensors 2, executes the program of work for the selected mode, generates a command to turn on the actuator 3 and transmits the corresponding information to the indication element 10. The operation is stopped in the selected mode by acting on the button 7 to turn off the execution of the selected mode (bring the mechanism in the initial state), as evidenced by the corresponding indicator.

Thus, a device equipped with the proposed unified remotes, regardless of the complexity of the controlled equipment, has a uniform algorithm for receiving commands:
mode selection - 2 buttons
execution or cancellation of the mode - 2 buttons, which allows the operator, once mastered the process of controlling equipment containing the proposed cyclic program control device, can easily adapt to control any other equipment equipped with such a device.

 In addition, reliable information displayed by indicators on the status of mechanisms: “in working,” “in the initial,” “the process of executing a command” is ongoing, helps to reduce the complexity of commissioning equipment and its operation, which increases the efficiency of use of such devices.

Claims (1)

 A cyclic program control device containing control pulses of mechanisms of each of the positions, including elements for indicating the status of mechanisms, and a logical control unit, to the inputs of which sensors of mechanisms are connected, and to the outputs are actuators for controlling mechanisms, characterized in that in each of the control panels a node for selecting operating modes, a button for switching on the execution of the selected mode, and a button for switching off the execution of the selected mode, connected to the inputs of the logical unit, are introduced control, and a decoder, the inputs of which are connected to the outputs of the logical control unit, and the outputs are connected to the inputs of the memory register, the outputs of which are connected to the elements indicating the status of the mechanisms.