JPH0755601Y2 - CNC device with sequence CAD function - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a CNC device having a built-in sequence controller, in which all of the sequence control circuits are CR for monitoring.
Sequence CAD that can be checked and debugged using T screen
The present invention relates to a CNC device having a function.

[Prior art]

Conventionally, there are three sequence control circuit diagrams: a high-voltage circuit diagram showing wiring of a drive unit such as a motor, an input / output circuit diagram showing inputs of switches and the like, outputs of solenoids, and a logic circuit diagram showing sequence circuits. It consists of a circuit configuration. Here, C of a CNC device with a built-in sequence controller
The sequence control circuit that can be handled on the RT screen is only the logic circuit diagram of the above three circuit configurations, which is the entire sequence control circuit diagram installed in mechanical equipment. The high voltage circuit diagram and the input / output circuit diagram are of the CNC device. Could not be displayed on the CRT screen.

[Problems to be solved by the device]

However, since it is necessary to check the high-voltage circuit diagram and the input / output circuit diagram when confirming the sequence control circuit in the field, the sequence control circuit diagram attached to the mechanical equipment is also used for maintenance. Therefore, it is necessary to provide a sequence control circuit drawing for each machine equipment, and it is often troublesome to store the drawings or modify the drawings for each circuit change. The present invention has been made to solve the above problems, and its purpose is to display not only a logic circuit diagram but also an input / output on a CRT screen of a CNC device with a built-in sequence controller. The circuit diagram can also be displayed, the sequence control circuit diagram can be made paperless, and by designating a part of the circuit, other circuit parts related to the circuit part can be selectively displayed, and It is an object of the present invention to provide a CNC device equipped with a sequence CAD function that can easily call and confirm / debug a necessary related part without understanding the sequence control circuit.

[Means for Solving the Problems]

The configuration of the device for solving the above-mentioned problems is a logic circuit diagram data showing a plurality of sequence circuits and a plurality of input / output circuit diagram data showing inputs of switches and solenoids connected to the sequence circuits. And a data storage unit for storing the circuit diagram data classified into each circuit diagram data, and an input / output contact indicating the input and the output from one circuit diagram data among the circuit diagram data stored in the data storage unit. Alternatively, a data designating means for designating a relay contact, and a data searching means for retrieving each of the circuit data based on the input / output contact or the relay contact designated by the data designating means to find all related circuit diagram data. Data display means for selectively reading and displaying the circuit diagram data found by the data search means.

[Action]

Of the logic circuit diagram data showing the plurality of sequence circuits stored in the data storage means by the data designating means and the plurality of input / output circuit diagram data showing the inputs of switches and the like connected to the sequence circuits and the outputs of the solenoids Input / output contacts and relay contacts are designated in one circuit diagram data. The data search means searches each stored circuit data based on the designation and finds all other circuit diagram data related to the designated input / output contact and relay contact. Then, the data display means reads out and displays the selected circuit diagram data out of the found circuit diagram data.

【Example】

Hereinafter, the present invention will be described based on specific embodiments. FIG. 1 is a block diagram showing the mechanical and electrical configuration of a machining center type CNC device having a sequence CAD function of the present invention. Reference numeral 10 is a numerical controller, and a CPU 11 which constitutes the numerical controller 10 includes a servo motor drive circuit DUX32, DUY33, DUZ34
A drive CPU 17 is connected via a RAM 16 as a drive system of the. On the other hand, 40 is a machining center type machine tool controlled by the numerical control device 10 of the above configuration, by the rotation of the servo motors 41, 42, 43 driven by each of the servo motor drive circuits DUX32, DUY33, DUZ34, The relative position between the work table 45 that supports the work W and the spindle head 44 that hangs the spindle 46 rotated by the spindle motor SM is three-dimensionally changed. Further, 47 is a tool magazine that holds a plurality of types of tools, and the tools in the tool magazine 47 are selectively mounted on the spindle 46 by a magazine indexing device and a tool exchanging device 48 (not shown) so that the workpiece W Processing is performed. A sequence controller 20 is connected to the CPU 11 of the numerical controller 10 via an interface 19, and the sequence controller 20 is connected to the drive CPU 17. A spindle motor drive circuit 31 for controlling the rotation speed of the spindle motor SM is connected to the sequence controller 20. Further, the CPU 11 of the numerical controller 10 is connected with the clock signal generation circuit 12, ROM 13, RAM 14, fixed disk 15, interfaces 21, 26, and the keyboard 21 is connected to the interface 21.
2 and a CRT display device 23 are connected, and a peripheral device 27 such as a portable programming device is connected to the interface 26. Next, the operation will be described. First, as shown in FIG. 3, a sequence CAD device 50, which is a data creation unit installed separately from the CNC device, is used as a sequence control circuit diagram, and a high-voltage circuit diagram 51, which is high-voltage circuit information, and an input / output circuit. Input / output circuit diagram which is part information 52
And a logic circuit diagram 53, which is the logic circuit section information, is created, and these are stored as, for example, the floppy disk 55 as each circuit data. At this time, the switches and relays in the high-voltage circuit diagram 51 and the input / output circuit diagram 52 are provided with corresponding relay contacts in the logic circuit diagram 53, identification symbols and identification numbers of the input / output contacts, and line numbers of the ladder circuit. . With the identification symbols and identification numbers and line numbers of the switches, relays, etc., it is possible to find the corresponding portions on the high voltage circuit diagram 51 and the input / output circuit diagram 52 from the contact portions on the logic circuit diagram 53. Then, a disk drive device is connected as a peripheral device 27 connected to the CPU 11 of the numerical control device 10 via the interface 26, and each circuit data stored in the floppy disk 55 is stored in the fixed disk 15 of the numerical control device 10. Let FIG. 2 is a flow chart showing a processing procedure of the CPU 11 of the numerical control device 10 which constitutes the CNC device having the sequence CAD function according to the present invention. In step 100 of achieving the data designation means, for example, one relay contact in the logic circuit is designated by a cursor by operating the keyboard 22 as a circuit portion to be confirmed. Next, the process proceeds to step 102 of achieving the data retrieval means, based on the identification symbol of the relay contact which is the designated circuit part, the identification number and the line number where the relay contact is present, in association with the relay contact. Search the circuit data. In this search, all the sequence circuits to which the specified relay contact of the logic circuit is connected are found and the inputs to the sequence circuit, for example, the inputs of switches and the outputs of solenoids are shown. All input / output circuits, and, for example, the relay contact identification code, identification number and its relay contact corresponding to all high-voltage circuits connected to the input / output circuit, for example, showing the wiring of the drive unit such as a motor It is found based on the line numbers that exist. Next, the process proceeds to step 104, in which the CRT display device 23 is selected by the operator or the like from the circuit data retrieved in step 102.
For example, an input / output circuit is selected from the menu by the keyboard 22 as the circuit portion to be displayed and confirmed. Next, shifting to step 106, the necessary circuit data regarding the input / output circuit selected from the menu is converted into data for screen display, and the input / output circuit which is the selected circuit portion is displayed on the CRT display device 23, This program ends. As described above, the sequence CAD device 50 first creates a high-voltage circuit diagram, an input / output circuit diagram, and a logic circuit diagram as a sequence control circuit diagram, and classifies and stores them in each circuit data. After this, by specifying the circuit part as necessary, the related circuit data can be displayed in the C
Since it can be selectively displayed on the RT display device 23,
It is not necessary to equip the mechanical equipment with the sequence control circuit drawing. Furthermore, one of the sequence control circuit drawings
Since all related circuit parts to be confirmed can be searched from one circuit part, the necessary circuit part can be called and confirmed without understanding the entire sequence control circuit. Further, if there is a change or the like in the called circuit portion, it is possible to modify the circuit portion as necessary by operating the keys of the keyboard 22. In this case, by being able to call all the circuit parts related to the modification of the sequence control circuit, the time required for the work of changing the circuit parts is shortened and there is less risk of omission of changes.

[Effect of device]

The present invention designates an input / output contact and a relay contact in each circuit diagram data of the data storage means stored by classifying them into input / output circuit diagram data and logic circuit diagram data, and based on the designated portion, It is necessary to check other logic circuits and input / output circuits, because the circuit diagram data is searched to find related circuit diagram data, and the found circuit diagram data is selectively read and displayed. In such a case, by designating the necessary circuit element, it becomes possible to retrieve the stored circuit data and display the related circuit diagram data. Therefore, there is an effect that it becomes unnecessary to equip the mechanical equipment or the like with the logic circuit diagram and the input / output circuit diagram. Also, since other logic circuit diagrams corresponding to the respective contact points of the logic circuit diagram data and parts on the input / output circuit diagram can be specified, the connection state of the circuit can be easily confirmed and debugging, failure detection, etc., can be facilitated.

[Brief description of drawings]

FIG. 1 is a sequence CA according to a specific embodiment of the present invention.
FIG. 1 is a configuration diagram showing a mechanical and electrical configuration of a machining center type CNC device having a D function. FIG. 2 is a flow chart showing a processing procedure of the CPU used in the apparatus of the embodiment. FIG. 3 is an explanatory view showing circuit data composed of respective circuit diagrams which are sequence control circuits by the sequence CAD. 10 …… Numerical control device, 11 …… CPU 22 …… Keyboard, 23 …… CRT display device 31 …… Spindle motor drive circuit 32,33,34 …… Servo motor drive circuit 40 …… Machine tool 41,42,43 ...... Servomotor 45 …… Workpiece table, SM …… Spindle motor W …… Workpiece

Claims (1)

[Scope of utility model registration request] 1. Logic circuit diagram data showing a plurality of sequence circuits and a plurality of input / output circuit diagram data showing inputs of switches and the like connected to the sequence circuits and outputs of solenoids are included in each circuit diagram data. Data storing means for classifying and storing, and data designating an input / output contact or a relay contact indicating the input and output from one circuit diagram data among the circuit diagram data stored in the data storing means Specifying means, data searching means for searching each of the circuit data based on the input / output contact or relay contact specified by the data specifying means to find all related circuit diagram data, and finding by the data searching means C having a sequence CAD function, characterized by having a data display means for selectively reading out and displaying the issued circuit diagram data.
NC device.