JPH01263802A - Cnc device - Google Patents

Abstract

PURPOSE:To shorten the checking time with a CNC device by detecting a tape check command via a tape check part at the input of said command to stop the working of an output part and checking the shift data. CONSTITUTION:A CNC device 1 contains a control information input/output part 2, a tape reader part 3, a display/input part 4, an axis control part 5, a working machine control part 6 and a main control part 7. The part 7 produces the data necessary to the working based on the input working information and delivers these data via the part 5 or 6 for control of the action of a working machine. When a tape check selection switch 40 is pushed, the part 7 processes the NC data and displays this processing result on the screen of the part 4. In this case, the part 7 does not send said data processing result to the part 5 and therefore the processing time is shortened. Thus it is possible to shorten the checking time when a check mode is instructed.

Description

[Detailed description of the invention] [Object of the invention] (Industrial application field) The present invention is a CNC device (CO+npUtOriZedN CM) used as a control t2II device of an NG system.
Regarding A).

(Prior art) C used by being attached to a turret pan de press, etc.
As an NC device, one shown in FIG. 5 is conventionally known.

A CNC device 100 shown in this figure reads NC data written on a paper tape 99 or the like, and when the machine start switch is pressed, each pulse motor 10i, 102 of a processing machine 98 is activated based on the NC data. Drive X-Y
While moving the table, drive the pulse motor 1°3 for the ■axis (turret axis) to bunch the workpiece.

Also, in parallel with this operation, the CNC device 100
A programmable controller C (programmable controller) 104 is controlled to regulate the operation of peripheral devices added to the processing Fi 198.

Further, if a control command is input from the MTB (control board) 97 as necessary, the PC 104 controls the operation of the peripheral device based on this control command.

By the way, in such a CNC device@100, before machining a workpiece, it is normally checked whether the NC data input via the paper tape 99 is correct.

In this case, when the program check selection switch 106 provided in the CNC device 100 is pressed, the CNC 3i
ff1100 generates a program check signal and checks the PC.
104 is brought to a halt. After this,
If the PC 104 outputs a machine lock signal indicating that it is in a stopped state, a code lock signal, or an M code lock signal, the CNC device 2 is activated based on these signals.
2100 performs the following processing.

First, for the machine lock signal, each pulse motor 1
A pulse distribution circuit 108 (as shown in FIG.
(circuit in the final output stage). Even in this case, a pulse signal is supplied to a circuit (not shown) installed in front of the pulse distribution circuit 108, such as a positioning counter, to display the processing position.

Furthermore, in response to the T code lock signal, the output of the ■ code data (tool designation function code data) to the PC 104 is stopped.

Furthermore, in response to the M code lock signal, output of the M code data (auxiliary function code data) to the PC 104 is stopped.

Then, with each part of the device locked in this way, C
The NCl device 1 device 0 processes the NC data supplied via the paper tape, generates various data and various signals necessary for processing the workpiece, displays each of these on a CRT, etc.
An operator is made to judge whether the NC data is correct.

(Problems to be Solved by the Invention) However, in such a conventional CNC device 100, when a machine lock signal is supplied from the PC 104,
As shown in FIG. 6, the pulse distribution circuit 10 of the axis control section 1.7
8 to prevent pulse signals from being output, when movement data etc. are output from the CNC upper circuit (circuit in front of the axis control unit 107) 113 that constitutes the CNC device 100, the axis The communication processing circuit 109, command analysis circuit 110, positioning logic circuit 111, and pulse calculation circuit 112 that constitute the it, lJ 111 unit 107 end up operating.

Therefore, when checking the NC data using the machine lock signal, the NC data is not configured and 61 blocks are checked as shown in FIG.
Processing time TM of C upper circuit 113 and axis control t1 section 10
The time Tp (Tp
= TM + TD) is required.

Therefore, if the number of blocks in the NC data to be checked is 'NB', the time Tp expressed by the following equation is required.

To = (TM + To)・NB...
(1) Also, the time Tp shown in equation (1) is the time when there is only one movement data in one block, but in actual NC data, there are multiple movement data in one block. It is often a pattern cycle that includes movement data.

In this case, the time Tp required to check one block is Tp = (TM + To - Np)・NB...
-(2) However, Np: the number of movement data (number of pitches) included in one block.

bawl.

As is clear from equation (2), when performing a program check of NC data using a machine lock signal,
If there are many pattern cycle commands in the NC data, the time Tp required for checking becomes too long, resulting in a decrease in production efficiency.

In view of the above circumstances, it is an object of the present invention to provide a CNC device that can shorten the time Tp required for program checking of NC data and improve production efficiency.

[Structure 1 of the Invention (Means for Solving the Problems)] In order to achieve the above-mentioned problems, the CNCH device according to the present invention is a CNC device that controls a machining line based on programmed NC data. A calculation section that generates necessary movement data based on the NC data that has been processed, an output section that generates an axis control signal from the movement data output from this calculation section and outputs it to the processing machine, and a tape check command input. The present invention is characterized in that it further comprises a tape check section that stops the axis control signal output operation of the output section and displays the movement data output from the calculation section when the operation is performed.

(Function) In the above configuration, when a tape check command is input, the tape check section detects this, stops the operation of the output section, and in this state checks the movement data output from the calculation section. .

(Embodiment) FIG. 1 is a block diagram showing an embodiment of a CNC device according to the present invention.

The CNC device 1 shown in this figure includes a control information input/output section 2,
The tape reader section 3, the display/input section 4, the axis control section 5, and the processing I! ft, II control section 6 and a main detail section 7, when processing information is input via the control information input/output section 2, tape reader section 3, display/input section 4, etc., this processing Based on the information, the main control section 7 generates data necessary for machining, and outputs this data from the axis control section 5 and the processing machine control section 6 to regulate the operation of the processing machine.

Further, when the tape check selection switch 40 is pressed, the main υ control section 7 processes the NC data in the processing information and causes the processing result to be displayed on the screen of the display/input section 4. In this case, the main tIII 11 section 7 does not output this processing result to the axis control section 5, so the processing speed is increased by the processing time of the axis control section 5.

The control information input/output unit 2 includes a controller panel 8 having various keys, a controller 9 that controls the controller panel 8, and a serial I10 (S lo) 11 that connects the controller 9 and the system bus 10.
When the controller panel 8 is operated, the content of the operation is sent onto the system bus 10,
When display data or the like is supplied via the system bus 10, it is taken in and displayed on the controller panel 8.

Further, the tape reader section 3 reads the N written on the paper tape 13.
A paper tape reader (PTR) 14 for reading C data, and a parallel I10 (PIo) 15 for connecting the paper tape reader 14 and the system bus 10, and a read command is supplied via the system bus 10. When this is taken in, the N written on the paper tape 13 is
C data and sends it onto the system bus 10.

The display/input unit 4 also includes a CRT 16 that displays various data on the screen, and an M
DI panel 17, CRT controller 18 that controls these CRTs 16 and MCI panel 17, and this CRT
It is equipped with a serial l10 (SIO) 19 that connects the controller 18 and the system 10, and when the MDI panel 17 is operated, the operation contents are sent onto the system bus 10 and transmitted via the system bus 10. When display data etc. are supplied, it is imported and displayed on the CRT.
16.

In addition, the axis control section 5 controls the X-axis, Y-axis, T-axis, etc. provided in the processing machine based on the position control loop (PCL) 20 composed of sub-CPLJ etc. and the output of this position control loop 23. Each motor 2
4, and a bidirectional RAM (DP-RAM) 22 that is accessed by the position control loop 20 and the main control section 7.

When control data (for example, axis control data such as movement data) is supplied via the system bus 10, each motor is controlled based on this control data, the output of the encoder 25, and the output of the tachogenerator 23. 24
to drive.

The processing machine control unit 6 also includes a connector model 26 that is hardened in accordance with the configuration of the processing machine, and the system bus 10.
When a processing machine control command is supplied via the DO circuit 27 which receives this command and supplies it to the processing machine side via the front connector model 26, A D1 circuit 28 takes in control information of the processing machine and sends it onto the system bus 10, and when sequence information is supplied via the system bus 10, takes in the control information and sends it out on the system bus 10. A programmable controller (PC) 29 is provided for controlling the processing machine, taking in sequence signals from the processing machine, and transmitting them onto the system bus 10.

This processing machine control section 6 is connected to the system bus 10.
When each control information is supplied via the system bus 10, it is taken in to control the operation of the processing machine, or the output of each sensor installed in this processing machine is taken in and sent on the system bus 10. or send it to.

The main control unit 7 also includes a CPU 30 composed of a microprocessor, etc., a ROM 31 in which system programs regulating the operation of the CPU 30 and various constant data are stored, and a RAM 32 used as a work area for the CPU 30. It is equipped with And the CP
U30 performs various processes based on programs stored in the ROM 31 while using the RAM 32 as a work area.

In this case, the system program stored in the ROM 31 includes a main control module 33, an automatic operation control module 34, an operation state tIIJ control module 35, a CRT/MDI data control module 36, as shown in FIG. It includes an NC program input processing module 37, an arithmetic processing module 38, and an NC control data output processing module 39, and these main control modules 33 to NG depending on the processing content.
The control data output processing module 39 is selectively activated and necessary processing is performed by the CPU 30.

The main control module 33 is managed by the kernel (core) of the O8 (operating system) of this system program, and performs processing such as initial diagnosis, initialization of the common table, and initialization of the axis control 5.

The automatic operation control module 34 is managed by the main control module 33, and performs processes such as automatic operation control and program check control.

Further, the driving state control module 35 is managed by the main control module 33 similarly to the automatic driving control module 34, and is controlled by the input/output management (DI
/Do processing), axis control unit 5 status processing, manual/Do processing), axis control unit 5 status processing,
Performs processing such as origin data (X, Y, T) output processing, NC status control processing (STOP/RESET, 5TOP processing), travel time management processing, program input (PTR) processing, editing processing, external communication processing, etc. .

Further, the CRT-MDI data control module 36 is similar to the automatic operation control module 34 and the operation state control module 35, and the main control module 36
3, which includes DIΔG processing, parameter editing/display processing, setting data editing/display processing, current position display processing, alarm display processing, NG data input from MDI panel 17, and override display processing. , performs processing such as directory display processing.

Further, the NC program input processing module 37 is managed by the automatic operation control module 34, and processes programs input from the paper tape reader 14, memory, MDI panel 17, etc., processes format checks of NC programs, and processes command values. Performs processing such as check processing and display processing of the NC program being executed.

Similarly to the NG program input processing module 37, the calculation processing module 38 is managed by the automatic operation control module 34, and performs G code processing (coarse processing), coordinate calculation processing, feed rate calculation processing, OT Pre-check processing, T-axis calculation processing (T-code processing)
, C-axis calculation processing, multi-cavity processing, auxiliary function processing (
M code processing), etc.

Also, the N G $11 all data output processing module 39 is managed by the automatic operation control module 34, like the NC program input processing module 37 and the arithmetic processing module 38, and performs dwell processing (GO4 processing), Nibbling calculation processing, pattern cycle calculation processing, 7-stage switching/non-stage switching processing, output processing of movement data (X, Y, T, C data), M code processing, T code processing, start processing, tool use Performs processing such as count processing and C-axis backlash processing.

Next, the tape check operation of this embodiment will be explained with reference to FIGS. 3 and 4.

First, when the CNC device 1 is powered on, the main control section 7 starts operating and the main control module 3
Start 3.

Each part of the apparatus is initialized by the main control module 33, and after the initialization is completed, the automatic operation control module 34, the operation state control module 35, and the CRT-MDI data υll1Il module 36 are activated.

In this state, if the program check selection switch 40 provided on the MDI panel 17 is pressed, the CRT controller 18 of the display/input section 4 detects this as shown in FIG. Send the results.

As a result, the MPU 30 of the main control section 7 learns that the program check mode has been designated, and activates the program check control process of the automatic driving control module 34 to perform the following process.

First, when this program check control process starts,
The tape check mode flag PCK of the RAM 32 is set, and the NC program input processing module 37 is subsequently managed by the automatic operation control module 34;
Performance processing module 38, NC control data output processing (-
Module 39 is activated.

As a result, the data reader section 3 is controlled by the NC program input processing module 37 and reading of the paper tape 13 is started. By this reading operation, NG data is taken in block by block, and its formatting and command values are checked.

Thereafter, this processing result is transferred to the address data table 41 formed in the RAM 32, and is sequentially fetched and processed by the arithmetic processing module 38, and the axis control data (data corresponding to movement data) is After that, this axis control data is set in the block command output table queue 42 formed on the RAM 32.

Next, when the axis control data is set in this block command output table queue 42, N C1ldl II
The axis control data set in this block command output table queue 42 is taken in by the I data output processing module 39, and the following processing is performed.

First, in this process, movement data is calculated from this axis control data as shown in FIG. 4 (step 5T1).

After that, it is determined whether the tape check mode flag PGK is currently set (step 5T2).
).

In this case, since the tape check mode flag PCK is set, the process of outputting movement data to the axis control section 5 (step S'r3) is skipped, and this movement data is sent to the CRT/MDI data control module 36. passed on.

This CRT-MDI data control module 36
The movement data is displayed/input section 4 serial l.
1019 and displayed on the CRT 16 (step ST4).

Thereafter, the M code output process is skipped (step ST5.5T6), and the T code output process is skipped (step ST7.5T8).

Thereafter, the above-mentioned operation is repeated, and the paper tape 1
The NG data supplied by No. 3 is processed in block order, the processing result is displayed on the CRT 16, and the acceptability of the data is determined by the operator.

Further, when another command is input, processing based on this command is performed like other CNC devices.

As described above, in this embodiment, when the tape check mode is commanded, the movement data is not output to the axis control section 5, so the communication ff1l! carried out by the axis control section 1i11 section 5! l! Processing such as command analysis processing, positioning performance processing, and servo control processing can be omitted, thereby reducing the check time per block required for checking NC data.

In addition, it is possible to shorten the time from the creation of NC data to the actual machining operation, so before the actual machining operation,
Even when checking the NC data, production efficiency can be prevented from decreasing.

Furthermore, in the embodiment described above, the supply of movement data to the axis control section 5 is stopped to shorten the time for checking the NC data. If there is any unnecessary processing, this processing may be omitted to further speed up the NC data check processing.

[Effects of the Invention] As explained above, according to the present invention, the block [
Production efficiency can be improved by shortening the time required to check one gram.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of an embodiment of a CNC device according to the present invention, Fig. 2 is a schematic diagram showing an example of a system program used in the embodiment, and Fig. 3 shows a tape check operation of the embodiment. 4 is a flowchart showing an example of data output processing in J3 in the tape check operation of the same embodiment, FIG. 5 is a block diagram showing an example of a conventional CNC device, and FIG. 6 is a schematic diagram for explanation. A block diagram for explaining the tape check operation of the CNC device shown in FIG.
FIG. 7 is a schematic diagram for explaining the tape check operation of the 1J-CNC device shown in FIG. 5. 1... CNC device 4... Output section (axis control section) 7.
...Arithmetic section, tape check section (main control section) Representative Patent attorney Yasuo Miyoshi Figure 4

Claims (1)

[Claims] A CNC device that controls a processing machine based on programmed NC data includes a calculation unit that generates necessary movement data based on the programmed NC data, and an axis control signal that is generated from the movement data output from this calculation unit. an output unit that generates the generated data and outputs it to the processing machine side; and a tape check unit that stops the axis control signal output operation of the output unit and displays the movement data output from the calculation unit when a tape check command is input. A CN characterized by having
C device.