JPH03144806A - Composite controller - Google Patents

Abstract

PURPOSE:To process the works of all types with a single program despite the increase of types of works by providing a BASIC program to automatically process the works in response to the change of the working conditions. CONSTITUTION:The coordinates of a moving destination and the moving speed necessary for a work are held in a single BASIC program 109d as a variable. Then the program 109d is stored in a numerical controller 102 in place of a working program. The coordinates and the speed are automatically written to the variable contained in the program 109d via a programmable logic controller 103 in response to the type of the work. Then the program 109d is carried out and the work is processed based on the contents of the variable. Thus it is possible to process the works of all types via a single program despite the increase of types of works and to eliminate the shortage of capacity of a numerical storage.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a composite control device equipped with a numerical control means and a programmable logic controller, and more specifically, the present invention relates to a complex control device that is equipped with a numerical control means and a programmable logic controller, and more particularly, it is a device for processing a machine according to written destination coordinates and speed. The present invention relates to a composite control device that controls processing.

[Prior Art] A conventional composite control device has a structure shown in FIG.

In this composite control device, a machine 40 to be controlled
1, a numerical control device (NC) 402 that processes data for executing numerical control of the machine 401, and a programmable logic controller (PLC) 40 that program-controls the numerical control device 402 and the machine 401.
3, and a parallel bus 40 connecting the programmable logic controller 403 and the numerical control device 402.
7, a recording means 404 such as a magnetic tape for recording predetermined processing information, and an input section 405 for inputting the processing information recorded on the recording means 404.

control information to the programmable logic controller 4
The recording means 4041 has a setting display section 406 that displays the setting 1 at 03, and the recording means 4041 manual section 405. Setting display section 406 is connected to programmable logic controller 403.

The numerical control device 402 includes a CPU 408 that executes control and calculation processing for each part, and a machining program 409r programmed by the programmable logic controller 403.

409,. 409h and the processing program 4091.4
09. ．． 409. Storage unit 4 that stores machining program execution procedure 4091 and machining information 409b for executing
09, a movement calculation unit 410 that calculates the movement amount of a controlled shaft portion (not shown) of the machine 401, and the CPU 408.
a shared memory 411 that can perform continuous read/write operations from both the CPO 408 and the programmable logic controller 403; from the programmable logic controller 403 to the CPU
an interrupt control unit 413 that controls an interrupt signal to 40B;
an interrupt control unit 4 that controls interrupt signals from the CPU 40B to the programmable logic controller 403;
14, and an interface 415 for transmitting and receiving signals between each of the interrupt control units 413, 414 and the programmable logic controller 403.

In addition, the programmable logic controller 403
is a CPU 416 that executes calculations for control processing, and a cough cP
Sequence program 417 necessary for calculation of control processing of U416. a storage unit 417 that stores
6, and an interface 419 for transmitting and receiving signals between the CPU 416 and the numerical control device 402.

Further, a machining program 409 in the storage section 409 in the numerical control device 402. , 409° 409, 2. For example, the contents of 2 are as shown in FIG.

In machining program 1 (409f) in Fig. 7, GO
is a rapid feed command, C1 is a cutting feed command, and X.

Y and Z are the names of the drive control axes of the machine, the numbers immediately after x, y, and z are the coordinates (unit: mm), F is a symbol indicating the cutting feed rate, and the number immediately after F is the cutting feed. The speed (unit: 1 TIIll/min) is shown.

Therefore, 2 GOX100Y200Z300 (701) indicates that the machine 401 is moved in rapid traverse to a position with an X coordinate of 100 mm, a Y coordinate of 200 mm, and a Z coordinate of 300 mm.

Also.

GIX150Y220Z370F800 (702) has an X coordinate of 150 mm, a Y coordinate of 200 mm, and a Z coordinate of 370 mm.
Machine 4 at cutting feed rate 800++un/min at mm position
01 is moved (cut).

Furthermore.

GOX50Y150Z250 (703) is the X coordinate 5
0 mm, the Y coordinate is 150 mm, and the Z coordinate is 250 mm.

With the above configuration, the operation of this conventional composite control device will be explained.

When there are multiple types of workpieces, each workpiece has different movement destination coordinates and speeds, so the machining program is created for each type of workpiece and is stored in the storage unit 409 of the numerical control device 402. Then, execute the machining program according to the type of workpiece to perform machining.

Processing information 409b, processing program 409f.

409,. 5th about the operation of writing 409h into the storage unit 409 of the programmable logic controller 403
This will be explained below using the flowchart shown in the figure.

First, when a write signal such as processing information 4091 is input to the programmable logic controller 403 (step 501), the programmable logic controller 403 uses the parallel bus 407° interface 415
An interrupt signal is output to the interrupt control unit 413 via the interrupt controller 413 (step 502).

Upon input of this interrupt signal, the interrupt control unit 413 causes the CPU 4 to
08 (step 503).

When the interrupt control unit 413 interrupts, the CPtJ40B outputs a switching signal to the switching unit 412 (step 504), and switches the switching unit 412 to the programmable logic controller 403 (step 505). On the other hand, the CPO 408 sends the CPU 40 to the interrupt control unit 414.
1 interrupt control unit 414 outputs an interrupt signal indicating that B is ready.
An interrupt is issued to the programmable logic controller 403 (step 506). Thereafter, when the programmable logic controller 403 receives an interrupt signal indicating that the CPU is ready, the programmable logic controller 403 inputs an interrupt signal indicating that the CPU is ready.
Processing information 4091 and the like are read into the programmable logic controller 403 via the parallel bus 407 (step 507L). It is determined whether the reading is completed or not (step 509). If it is determined that the reading is completed, the CPU 40B outputs a switching signal to the switching unit 412 (step 510), and the switching unit 412 is switched to the CP.
Switch to the U408 side (step 511). after that,
The CPU 408 reads the processing information 4095 etc. read into the shared memory 411 into the storage unit 409 (step 5).
12), the series of operations is completed.

Further, if it is sufficient to read the shared memory 411 and there is no need to read the recording unit 409, the operation up to step 509 is completed.

The following description will be made on the premise that the operation of reading processing information 4096 and the like into the recording unit 409 or the shared memory 411 is performed by the operations described above.

Next, 2, for example, processing work No. 1. Nα2. If machining programs 1, 2.3 correspond to each of Nα3, the type of workpiece to be machined is determined by executing the sequence program 4171 of the programmable logic controller 403 (step 601). For example, if the workpiece is machined No. For example, an execution request for machining program 1 is written into shared memory 411 (step 602).

On the other hand, machining program execution procedure 4 of the numerical control device 402
09. refers to the shared memory 411 to determine whether there is a machining program execution request from the programmable logic controller 403 (step 608), and if it is determined that there is a machining program execution request, the requested machining program ( The machining program 1) is executed for one line (step 609), and it is checked whether all lines have been executed (step 610). If it is determined that all lines have been executed, an execution completion interrupt is sent to the CPU 408.

The CPU 408 outputs the interrupt signal to the CPU 416 of the programmable logic controller 403 via the interrupt control unit 414 interfaces 415 and 419, and completes the execution (step 611). The CPU 416 notifies the sequence program 4171 of the completion of the execution, and in step 603 determines that the execution of the machining program 1 has been completed, and completes the machining process for the work No. 1.

Machining work Nα2 (steps 604, 605) Nα3 (
The processing in steps 606 and 607) will also be performed in the same manner as above.

[Problems to be Solved by the Invention] However, when the types of workpieces to be processed increase, the coordinates and speed of the movement destination required for processing the increased workpieces are different from those of the existing workpieces.

There is also the problem that a new machining program must be created for the machining workpiece.

There has been a problem in that as machining programs are continued to be added to a storage unit for storing machining programs, its storage capacity reaches its limit, resulting in a shortage of storage capacity.

This invention was made to solve the above-mentioned problems, and even if the number of types of workpieces increases, it is possible to process all types of workpieces with one program without adding additional machining programs. The purpose is to obtain a composite control device that can perform processing.

[Means to solve the problem]

The composite control device according to the present invention includes a BASIC program execution procedure for executing a BASIC program and an lAsIc program for automatically performing machining processing on a workpiece in response to changes in machining conditions; Processing commands are written by executing the BASIC program,
The numerical control means is provided with a machining program buffer to be loaded, a machining program execution procedure for executing the machining command written in the machining program buffer, and machining information used when executing the machining process, and is programmable. After writing the destination coordinates and speed of the machine to be controlled according to the machining conditions into the machining information from the logic controller, machining is performed based on the destination coordinates and speed read from the machining information by executing the BASIC program. The present invention provides a composite control device that executes processing.

[Effect]

The composite control device configured as described above holds the coordinates and speed of the movement destination necessary for the machining workpiece as variables in one BASIC program, and stores the HBAsxc program in the numerical control device as a substitute for the machining program. Then, the programmable logic controller sets the coordinates and the speed according to the type of workpiece to the BA.
After automatically writing into the variables in the SIC program, the BASIC program is executed and processing is performed based on the contents of the variables.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the overall configuration of a composite control device according to the present invention, and the configuration is the same as that of the conventional composite control device shown in FIG. 4 except for the storage unit 109. are doing.

In the composite control device according to the present invention, a machine 101 to be controlled, a numerical control device (NC) 102 that processes data for executing numerical control of the machine 101, and a numerical control device 102 and Programmable logic controller (PLO) that programmatically controls the machine 101
103 and 2 the programmable logic controller 10
3 and the numerical control device 102, a recording means 104 such as a magnetic tape for recording predetermined processing information, and an input section 105 for inputting the processing information recorded on the recording means 104. and.

control information to the programmable logic controller 1
and a setting display section 106 that displays setting 2 at 03, and the recording means 104. Input section 105. The setting display section 106 is connected to the programmable logic controller 403.

The numerical control device 102 includes a CPU 108 that executes control and arithmetic processing for each part, and a BASIC program execution procedure 109 that is an execution procedure for executing a BASIC program 1094 that replaces a machining program.
c, and the BASIC program 109. Machining program buffer 109 into which machining commands are written by executing
゜ and machining program execution procedure 109. and processing information 1
09b, and a movement calculation unit 1 that calculates the movement amount of the controlled shaft portion (not shown) of the machine 101.
10, a shared memory 111 that can be read/written from both the CPU 108 and the programmable logic controller 103, and the shared memory 11.
a switching unit 112 that switches the successive write/write operation of 1 between the CPU 108 and the programmable logic controller 103; an interrupt control unit 113 that controls an interrupt signal from the programmable logic controller 103 to the CP tJ 108; The CPU 108 includes an interrupt control unit 114 that controls interrupt signals to the programmable logic controller 103, and an interface 115 that executes signal transmission and reception between each of the interrupt control units 113, 114 and the programmable logic controller 103. We are prepared.

In addition, 2 the above programmable logic controller 103
is a CPU 116 that executes calculations for control processing, and
Sequence program 117 necessary for calculation of control processing of U116. a storage unit 117 that stores the CPU 11;
6, and an interface 119 for transmitting and receiving signals between the CPU 116 and the numerical control device 102.

In the above configuration, even if the type of double work is different, 1
Book BASIC Program 109. The operation of executing the machining process at the coordinates and speed according to the workpiece to be machined will be explained with reference to FIGS. 2 and 3.

Here, processing information 109b, BASIC program 109. The following description assumes that the operation of writing data into the storage unit 109 and necessary data into the shared memory 111 is the same as the flowchart shown in FIG.

The type of workpiece is determined by executing the sequence program 117 in the storage unit 117 in the programmable logic controller 103 (step 201). BAS I C program 09. A request to write to user variables 1 to 10 indicated by 301 302 303 in FIG.
write to. Here, the correspondence between the coordinates and speed necessary for processing the processing workpiece Nα1 and the user variables 1 to 10 is as shown in FIG.

In GOX400Y200Z300 (701),
100--User variable 1,200--User variable 2
,300--user variable 3.

C; In I
0-User variable 8,150-・User variable 9゜250-
...It is a user variable lO.

Further, the contents of the user variables are written at 109° in the processing information.

On the other hand, by executing the BASIC program execution procedure 109C of the numerical control device 102, the shared memory 111
With reference to step 202203 or 204, the processed work No. INα2. Step 208) determines whether there is a request to write the coordinates and speed necessary for the processing of No. 3 to user variables 1 to 10. If it is determined that there is a request for 8g, the coordinates and speed necessary for the processing of No. Read out the coordinates and speed at which it is located and write it into user variables 1 to 10 in the processing information 109 (step 209),
The write completion interrupt signal is sent to the CPU of the numerical control device 102.
10B (step 210). The CPU 108 that manually generated the interrupt signal transmits the interrupt signal to the interrupt control unit 11.
4 and interfaces 115 and 119 to the CPU 116 of the programmable logic controller 103. The CPU 16 notifies the sequence program 117a of the storage unit 117 of the completion of the writing, and in step 205 determines that writing to user variables 1 to 10 is complete, and proceeds to step 1206.

In this step 206, the BASIC program 109. write the execution request to the shared memory 111.

On the other hand, in the BASIC program execution procedure 109c, it is determined whether or not there is an execution request for the BASrC program 1094 with reference to the shared memory 111 (step 211).
Execute C program 109, t.

In this case, the BASIC program 109 shown in FIG.
4 from the beginning, first, print Go X (L-the variable 1) Y (L-
user variable 2) 2 (user variable 3) # When executed, GOX (user variable 1>Y
(User variable 2) Z (User variable 3) is processed in program buffer 109. However, at this time.

The contents of user variables 1 to 3 are processed as information 109. 8, converts them into characters, and writes them into the machining program buffer 1098 as G90 GOX100 Y2O0X300. Line 20, 3rd
The same goes for the execution of line 0, and BASIC program 109. (step 212).

Thereafter, the machining program execution procedure 1091 is called and executed (step 213). This machining program execution procedure 1098 is performed by machining command characters (701, 70 in FIG. '7) written in the machining program buffer 1098.
2, 703) is read and analyzed line by line to execute the machining (movement) process.Step 215) When the machining command characters written in the machining program buffer 109o have been executed for all lines (Step 216) After completing the program execution procedure 1091, in step 214,
Processing completion interrupt signal of processing workpiece Na 1 is sent to CPUI O.
Output to 8. The CPU 108 sends the interrupt signal to the CPUI of the programmable logic controller 103 via the interrupt control unit 114 and interfaces 115 and 119.
16, the CPU 116 notifies the sequence program 117a of the storage unit 117 of the completion of the machining,
In step 207, it is determined whether the machining process for machining workpiece No. 1 has been completed.

When it is determined that the machining process for the workpiece Nα1 has been completed, the machining process for the workpieces No. 2, No. 3, and No. 3 is executed secondarily, but even in this case, the operation described in 2 above is performed. 1 BASIC program 1
09. The processing will be executed by this.

[Effects of the Invention] As described above, according to the present invention, the coordinates and speed of the movement destination required for the processed workpiece are held as variables in one BASIC program.

The BASIC program is stored in a numerical control device in place of the machining program, and the programmable logic controller automatically changes the coordinates and speed according to the type of workpiece to the variables in the BASIC program. After writing the BASIC
The program is executed and processing is performed based on the contents of the variables, so even if the number of types of workpieces increases, all types of workpieces can be processed with one program without the need for additional machining programs. This eliminates the need to create additional machining programs and solves the problem of insufficient memory capacity in the numerical control device.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the overall configuration of the composite control device according to the present invention, FIG. 2 is a flowchart showing the operation of the composite control device according to the present invention, and FIG. 3 is a BAS used in the present invention.
An explanatory diagram showing the contents of an IC program, Fig. 4 is a block diagram showing the overall configuration of a conventional complex control device, and Fig. 5 shows the operation when writing machining information and a machining program from a programmable logic controller to a numerical control device. 6 is a flowchart showing the operation of the conventional composite control device shown in FIG. 4, and FIG. 7 is an explanatory diagram showing the contents of the machining program used in the conventional technique shown in FIG. 4. In fig. 101--Machine 102--Numerical control device 103...
・Programmable logic controller 108.116
・-CPU 109a・-Machining program execution procedure 109b...Machining information 109cm BASIC program execution procedure 109,
- BASIC program 109° - Machining program buffer Note that the same reference numerals in the figure indicate the same or corresponding parts.

Claims (1)

[Scope of Claims] Numerical control means for executing calculations for numerically controlling a machine, and a programmable logic controller for program-controlling the numerical control means and the machine, the numerical control means and the programmable logic controller In a composite control device that performs composite control of the machine using a BASIC program execution procedure for executing a program; a machining program buffer into which a machining command is written by executing the BASIC program; a machining program execution procedure for executing the machining command written in the machining program buffer; and machining information used when executing the machining process, and after writing movement destination coordinates and speed of the machine according to the machining conditions from the programmable logic controller to the machining information, executing the BASIC program. A composite control device that executes machining processing based on the movement destination coordinates and speed read from the machining information.