JPS63250712A - Control device for numerical control working machine - Google Patents

Abstract

PURPOSE:To easily change the execution order of a working schedule and to easily stop and end the execution at an optional point of time by providing a cell controller device with a master schedule forming means and a machine schedule selecting means. CONSTITUTION:An operator operates a terminal equipment 2a to register the master schedule of each NC working machine 1 in the cell control device 2. After ending the registration of a necessary schedule 7, the operator registers a machine schedule 8 corresponding to the schedule 7. The preparation work for a work and a work pallet is executed in a machine 1 for executing work and the contents of the preparation work is inputted from the terminal 2a every completion of the work. The equipment 2 displays the machine schedule ending the preparation work out of respective machine schedules 13 on an operation status display monitor 17. In this case, each schedule 13 completing the preparation work on the basis of an express instruction is displayed with priority. When there is no working program, the schedule is unloaded from a computer 3. When a forced end switch 19 is turned on, a selected program is invalidated.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a numerically controlled machine tool (hereinafter referred to as an NC machine tool), a numerically controlled machine tool that is composed of a cell control device and a host computer device that control the NC machine tool. The present invention relates to a control device for a machine, and more particularly to a control device for a numerically controlled machine tool that manages a machine schedule for the numerically controlled machine tool.

[Prior Art] FIG. 4 is a block diagram of a control device for a conventional numerically controlled machine tool. In Figure 4, (1) is an NC machine tool, (
2) is a cell control device that controls at least one or more NC machine tools (1), (2a) is a terminal device of the cell control device (2), and (3) is a processing program downloaded to the cell control device (2). (4) is the machine-side operation panel for NC work fi td (1), (5) is the cell control device (2), NC
This is an interface control panel that interfaces process input/output signals between the machine tool (1) and machine side operation panel (4).

The control device of this numerically controlled machine tool controls a plurality of NC machine tools (1) according to a machining schedule inputted from a terminal device (2a), and operates according to the flowchart shown in FIG.

(1) Step S51 The operator connects the cell control device (2) to the terminal device (
2a) to register Canadian skeshinir (8). The registered contents of schedule (6) are as shown in Figure 4: (a) Machine number (12) (b) Schedule name (13) (C) Work name of the work to be processed (not shown) (
9) (d) Work pallet name (lO) (not shown) of the work pallet that holds the work and is transferred together with the work. (e) Machining program name (11).

(2) Step S52 The operator prepares the work corresponding to the registration order work name (9) and the work pallet corresponding to the work pallet name (10) in the schedule (6).

(3) Steps 853 to S54 When the setup is completed and the NC machine tool (1) is ready for operation (step S53''), the cell control device (2) is operated from the machine side operation panel (4) by the hTh author's operation.
A startup instruction is output to (step 554).

(4) Steps 355 to 956 If the cell control device (2) does not have a machining program to be downloaded from the cell control device (2) to the NC machine tool (1) (step S55), the program is sent to the host computer (3). When sequentially requesting downloads (step 35B > , upper computer (3)
downloads the machining program to the cell control device (2) (step 557). Note that the machining program is created in advance in the host computer (3).

(5) Steps 858 to S60 The cell control device (2)
Step 35g to download the machining program downloaded from ) or the machining program stored in the cell control device (2) to the NC machine tool (1).
), the downloaded machining program is activated (step 559) and executed (step 560). At this time, the cell control device (2) receives and monitors the operating status of each NC machine tool (1) as a process signal via the interface control panel (5).

(6) Step set Every time one machining program is completed, the cell control device (2) selects the machining program name (
Start the machining program corresponding to (11) and execute all machining programs corresponding to machining program name (11).

(8) Steps S82 to S5li3 After completing the machining schedule (6), the cell control device (2) creates machining performance data in step S82 (
i2) and transfer it to the higher-level computer (3). Further, when one machining schedule (6) is completed, the next machining schedule (G) is repeatedly executed in the order of registration of schedule (6) in the above-described procedure (step 863).

[Problems to be solved by the invention] By the way, the conventional numerically controlled machine tool with the above configuration has
! The Iga device executes machining schedules (8) in the order of registration, so if you want to change the execution order, you must re-register machining schedule (6). The execution order of machining schedule (6) could not be changed.

Also, if a machining schedule cannot be executed to the end due to impossible setups or troubles, the machining schedule cannot be stopped or finished, and the machining schedule that has been executed halfway will be There was a problem that processing results were not guaranteed.

The present invention has been made to solve the above problems,
It is an object of the present invention to provide a control device for a numerically controlled machine tool that can easily change the execution order of a machining schedule and stop or terminate a machining schedule at any time.

Means for Solving Problems] Therefore, the present invention includes a machine schedule creation means for creating a machine schedule consisting of a plurality of machining programs to be executed by each of a plurality of numerically controlled machine tools,
A cell control device that drives and controls a plurality of numerically controlled machine tools according to this machine schedule includes a master schedule creation means for creating a master schedule consisting of a machine schedule for each of the plurality of numerically controlled machine tools, and a machine schedule of the master schedule. Among them, select the one for which the setup work of the numerically controlled machine tool corresponding to the machine schedule has been completed, and set the cell control device according to the selected machine schedule.
A control device for a numerically controlled machine tool is constructed, comprising a machine schedule selection means for driving and controlling the numerically controlled machine tool.

[Function] The control device for the numerically controlled machine tool having the above configuration uses the master schedule creating means to create a master schedule consisting of machine schedules for each of the plurality of numerically controlled machine tools, and uses the machine schedule selecting means to select the master schedule. Of the machine schedules,
Select the numerically controlled machine tool for which the setup work corresponding to the machine schedule has been completed, regardless of the registration order of the machine schedule by the machine schedule creation means, and have the cell control device operate the numerically controlled machine tool according to the selected machine schedule. Control the drive.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram of a control device for a numerically controlled machine tool according to the present invention. Note that in FIG. 1, parts that perform the same functions as those in FIG. 4 are designated by the same reference numerals, and their explanations will be omitted.

As shown in FIG. 1, the control device for a numerically controlled machine tool according to the present invention includes a master schedule (7) for each target NC machine tool (1) and a master schedule (7) for each target NC machine tool (1).
A machine schedule (8) indicating the contents of the machine is registered.

Master schedule (7) registers (a) machine number (12) (b) schedule name (13). Also, machine schedule (8) is (a)
Machine number (12) (b) Schedule name (■3) (C) Work name (d) corresponding to schedule name (13)
) Work pallet name (lO) (e) Machining program name (1]) (1') Stop command command to stop the machining schedule corresponding to machining schedule name (13) (g) To machining schedule name (13) A termination command (21) for terminating the corresponding machining schedule is registered.

Next, FIG. 2 is an explanatory diagram of the machine side operation panel (4) shown in FIG. 1. In Figure 2, (14) is a selection switch for selecting a machining schedule, (15) is a machining operation confirmation switch, (16) is an automatic start switch for starting the NC machine tool (1), and (17) is an NC machine tool. An operating status display monitor that displays the operating status of the machine (1), (18) an error reset switch for returning to normal operation after error processing, and (19) a machining program corresponding to the machining schedule name (13). This is a force termination switch to forcefully terminate the program.

Next, the operation of the control device for the numerically controlled machine tool according to the present invention will be explained with reference to the flowchart shown in FIG.

(1) Step Sl The operator operates the terminal device (2a) to
The master schedule (7) of 1) is registered in the cell control device (2). That is, the machine number (12) and the schedule name (13) of the machine number (12) are input. This input causes the cell control device (2) to display the contents to be input on the operation status display monitor display (17), ``machine number'' and ``schedule name.''
The operator follows the display and selects "1" (machine number (12)).
, rsKJ口01'', r 5KJOO2J, rsKJO
O5J,..., r 5KJTESJ, r 5KJT
E2J, r SKJSMPJ, r 5KJTE2J
(Schedule name (13)).

(2) Step S2 When all master schedules (7) have been registered,
The operator registers the machine schedule (8) corresponding to each master schedule (7) in the cell control device (2). That is, input the name of the work to be machined (9), the name of the work pallet (1o), and the name of the machining program (11) according to the order of machining. These inputs are the contents that the cell control device (2) should input to the operation status display monitor display (17), such as "work name", "work pallet name",
The "machining program name" is displayed, and the operator follows the display to select r132MJ (workpiece name (9)), rPOOIJ
(Work Palette Name (10)), r PRO8TIJ,
r PROTEIJ, r PROTE2J,..., r
$5TOP J, r PROTESJ, r PRO
TEOJ, rPROTEIJ, rPRO3MIJ
, -..., r PROTE2J (machining program name (11)) is manually executed. Note that the cell control device (2) uses the last input machining program (11).
) Add r $ENDJ next to (rPI?0TE2J).

(3) Step S3 When the registration of the machine schedule (8), that is, the registration of the work name (9), work pallet name (10) and machining program name (11), is completed for all master schedules (7), the operation A person performs work to set up a workpiece to be processed and a workpiece pallet with respect to the NC machine tool (1) that is to perform processing work.

The setup work is performed according to instructions from the terminal device (2a), and each time the setup work for each schedule (13) is completed, a notification to that effect is inputted from the terminal device (2a). In this case, if the setup work instructed by the terminal device (2a) cannot be performed or if machining needs to be given priority as an urgent instruction, the operator changes the order of the setup work.

(4) Step S4 The cell control device (2) performs each master schedule (
Among the machine schedules (13) in step 7), those for which the setup work has been completed are displayed on the operating status display monitor (17). The operator selects a schedule from the workpieces whose setup has been completed using the selection switch (14) according to a desired priority order.

(5) Step S5 The cell control device (2) confirms the existence of all machining programs corresponding to the selected schedule name (13) (Step 95). Cell control device (2)
When there is no machining program, the host computer (
A request is made to download the machining program from the computer 3) (step s8), and the machining program is downloaded from the host computer (3) (step S7).

(6) Step S8 The cell control device (2) confirms that the NC machine tool (1) is ready for operation (Step S8)
. If the preparation for operation is not completed, wait until the preparation for operation is completed. Press the force termination switch (19) while in standby mode.
) is turned on (step S9), the selected machining schedule is invalidated and steps SL9 and subsequent steps are executed.

(7) Steps SIO to S13 The name of the machining program to be executed (11) is $5 TOP
(Step 81) instead of (Stop command (20))
0), $END (end instruction command) (21))
If not (step S12), the cell control device (2) downloads the machining program to the NC machine tool (1). (Step 513) When the machining program name (11) is $5TOP, the process waits for the operator to turn on the automatic start switch (1G) (step Sll).

(8) Step 814 After downloading the processing program, the cell control device (2) waits for the automatic start switch (16) to be turned on (Step 814). Automatic start switch (16
) is turned on or is already turned on, the machining programs downloaded to the NC machine tool (1) are searched for and sequentially started according to the machine schedule name (8) (step S15).

The NC machine tool (1') sequentially executes the activated machining programs. In this case, if any error occurs during execution of the machining program (step SlB),
If the operator does not turn on the forced termination switch (19) (step 817), the process continues, waiting for the 1m author to eliminate the cause of the error and turn on the error reset switch (18). Also, force termination switch (19)
When turned on, step S19 and subsequent steps are executed.

Thereafter, steps 35 to SI5 are similarly executed every time the execution of one machining program is completed.

(9) Step S19 When the operator turns on the forced termination switch (19) before the operation and maintenance are completed (step S9), when the name of the machining program to be executed (11) is $END, or when the machining program An error occurred during execution, and the operator had to force
When the I+ end switch (19) is turned on (step 517), the cell control device (2) turns off the automatic start (step S19), and records the machining results of the machining schedule executed before turning off the automatic start. To generate data (step S20), upload the generated machining performance data to the host computer (3) (
Step S21), the processing schedule is ended.

Incidentally, even if the setup work could not be performed in step S3, if there is something that can now be set up, steps 83 and subsequent steps are repeatedly executed.

In addition, in this example, the ease and flexibility of changing the machining schedule was shown, but the machining program corresponding to the machining program name (11) used here can be written as a program module within one machining program. If you make a partial program with a specific machining part, $5 TOP
The entire machine schedule, including L and $END, can be regarded as one large machining program.

Therefore, by preparing a large number of partial programs that are repeatedly used in the machining program as program modules in the host computer (3), it is possible to share and reuse them by combining nine program modules. It becomes possible to create and operate efficient machining programs.

[Effects of the Invention] As explained above, according to the present invention, the master schedule creation means creates a master schedule consisting of machine schedules for each of a plurality of numerically controlled machine tools, and the machine schedule selection means creates the master schedule. Among the machine schedules, the one for which the setup work of the numerically controlled machine tool corresponding to the machine schedule has been completed is selected, and the cell control device is made to drive and control the numerically controlled machine tool according to the selected machine schedule. This has the effect of providing a control device for a numerically controlled machine tool that can execute a desired machine schedule regardless of the registration order of the machine schedule by the machine schedule creation means.

Further, since the machining program can use a machining schedule stop command or end command, it is possible to easily and flexibly respond to schedule modifications and mid-course changes.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of the control device of the numerically controlled machine tool according to the present invention, Fig. 2 is an explanatory diagram of the machine side operation panel shown in Fig. 1, and Fig. 3 is a block diagram of the control device of the numerically controlled machine tool according to the present invention. FIG. 4 is a block diagram of the control device of a conventional numerically controlled machine tool, and FIG. 5 is a flowchart showing the operation of the conventional numerically controlled machine tool. In each figure, 1 is an NC machine, 2 is a cell control device, 2a is a terminal device, 3 is a host computer, 4
is the machine side operation panel, 5 is the interface control panel, 7 is the master schedule, 8 is the machine schedule, 9 is the work name, IO is the work pallet name, 11 is the machining program,
12 is a machine number, 13 is a schedule name, 20 is a stop instruction command, and 21 is an end instruction command. Note that the same reference numerals in each figure indicate the same or corresponding parts. Agent Patent Attorney Masuo Oiwa Figure 4

Claims (4)

[Claims] (1) having a plurality of numerically controlled machine tools and a machine schedule creation means for creating a machine schedule consisting of a plurality of machining programs to be executed by the numerically controlled machine tools for each of the plurality of numerically controlled machine tools; The machine comprises a cell control device that drives and controls the plurality of numerically controlled machine tools according to the machine schedule, and a host computer that downloads the machining program to the plurality of numerically controlled machine tools via the cell control device. In a control device for a numerically controlled machine tool, the cell control device includes a master schedule creation means for creating a master schedule made up of the machine schedules for each of the plurality of numerically controlled machine tools, and a master schedule creation unit that creates a master schedule made up of the machine schedules for each of the plurality of numerically controlled machine tools; , machine schedule selection means for selecting a numerically controlled machine tool for which setup work has been completed corresponding to the machine schedule, and causing the cell control device to drive and control the numerically controlled machine tool in accordance with the selected machine schedule. A control device for a numerically controlled machine tool characterized by: (2) A control device for a numerically controlled machine tool according to claim 1, wherein the cell control device manages the machining program on a module-by-module basis. (3) The control device for a numerically controlled machine tool according to claim 1, wherein the machining program includes a stop instruction command for stopping the numerically controlled machine tool. (4) The control device for a numerically controlled machine tool according to claim 1, wherein the machining program includes a termination command for terminating the numerically controlled machine tool.