JPH0659603B2 - Machine tool control system - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to control of a machine tool in a machining system including an NC machine tool, a cell control device for controlling the NC machine tool, and a machine side operation panel of the NC machine tool. The present invention relates to a method, especially a processing schedule thereof.

[Prior Art] FIG. 5 is a configuration diagram of a conventional machining system, FIG. 6 is an external configuration diagram of a machine side operation panel of the system, and FIG. 7 is an operation diagram of a control method of a machine tool of the system. It is a flow chart shown. The processing schedule file of the system shown in FIG. 5 is the same as that according to the present invention, and will be described below with reference to the configuration diagram of the processing schedule file shown in FIG.

In FIG. 5, (1) is an NC machine tool, (2) is a cell control device for controlling at least one NC machine tool, and (3A) is a machine-side operation panel of the NC machine tool. (4) is an interface control panel for interfacing process input / output signals between the cell control device (2) and the NC machine tool (1) and machine side operation panel (3A), and (5) is the cell control device (2) ) Is a terminal device.

On the other hand, in the configuration diagram of FIG. 2, (6) is a machining schedule file which is registered and input from the terminal device (5) to the cell control device (2), and (7) is sequentially stepped for each of a plurality of NC machine tools. It is a machining schedule to be instructed and executed. (8)
Is an NC program name described in the machining schedule (7) and corresponds to each NC program actually used for machining in the NC machine tool (1).

In the machine side operation panel (3A) of Fig. 6, (10) is an automatic start switch for actually executing the machining schedule, (11) is a forced end switch of the machining schedule, and (12) is the name of the machining schedule to be executed. The operation status display unit displays the work code of the workpiece to be machined and the content of the comment when an error occurs in the machining work.

Next, the operation of the above machining system will be described with reference to the flowchart of FIG.

(a); The NC program (8) necessary for processing is registered in advance in the cell control device (2) and always exists (not shown).

(b); N to be controlled in the cell control device (2)
Processing schedule (7) for each C machine tool (1) (see Fig. 2)
Is registered from the terminal device (5).

(c); A setup instruction is issued from the terminal device (5) for each NC machine tool (1) for one machining schedule (7) in which a machining operation is to be executed.

(d); The worker performs the setup work for the one machining schedule for which the setup is instructed, and upon completion of the setup, inputs the fact from the terminal device (5).

(e); For the machining schedule (7) for which the setup has been completed, the machining operation instruction is given to the machine side operation panel (3A), and the operator sees this display and performs the final setup necessary for starting the machining. .

(f); When the worker presses the automatic start switch (10), the NC program will be the NC machine tool (1) according to the machining schedule.
, And the actual processing work begins.

(g); When one processing schedule is completed, (c) ~
The process of (f) is repeated, and the machining work ends when there is no next execution schedule.

(h); On the other hand, if any error occurs during processing work, an error message will appear on the operation status indicator (12) on the machine side operation panel (3A). If the worker does not press the forced end switch (11) at this time, the machining work continues until the machining schedule is completed.
If you press (11), the machining schedule is interrupted and the process ends. Then, the process moves to the above step (g).

[Problems to be Solved by the Invention] The conventional control method for a machine tool is configured as described above, and the machining is performed in accordance with the machining schedule order determined by the cell control device (2).
There was a situation in which the operator could not perform the machining schedule when the machining schedule was instructed to the machine side operation panel (3A), or the operator wanted to execute another machining schedule first. In that case, there was a problem that the order could not be easily changed.

The present invention has been made to solve the above problems, and obtains a machine tool control system in which an operator who performs a machining operation on a machine-side operation panel can flexibly change the sequence of machining operations with respect to a machining schedule. Is intended.

[Means for Solving Problems] A machine tool control system according to the present invention is an NC machine tool,
NC control device for controlling NC machine tool and NC
In a machine tool control method in a machine processing system including a machine-side operation panel of a machine tool, the cell control device has a file in which a plurality of machining schedules composed of a plurality of machining programs are stored, and a machining schedule of the file. To control the NC machine tool according to a preset order, and the machine side operation panel changes the machining schedule read from the file, selects the desired machining schedule, and reads it from the file. The operation status indicator that displays at least the machining schedule issued and the operation schedule that is displayed on the operation status indicator are provided to operate after confirming whether the machining schedule can be executed. With a work confirmation switch that enables execution of the machining schedule displayed on the status display A, in which the operator the sequence of machining schedule during operation command is to be able to change or select an instruction from the machine side operation panel.

[Operation] In the present invention, when it is inappropriate to execute the machining schedule in the preset order, the operator operates the selection switch while observing the operation status indicator on the machine side operation panel to make a desired operation. Select the machining schedule of. Then, when the machining schedule is selected and the work confirmation switch is operated, the NC machine tool is controlled based on the selected machining schedule.

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

FIG. 1 is a configuration diagram of a machining system according to an embodiment of the present invention, and is the same as that shown in FIG. 5 except for a machine side operation panel indicated by reference numeral (3). FIG. 2 is a configuration diagram of a processing schedule file in the above system, and FIG. 3 is an external configuration diagram of the machine side operation panel (3A).

In FIG. 3, the same symbols as those in FIG. 6 indicate the same components. (9) is a work confirmation switch for confirming whether or not to execute the designated machining schedule, (13)
Is a selection switch for selecting a machining operation. Every time the switch is pressed, the machining instruction contents are sequentially changed by a rotary system.

Next, the operation of the control method of this machine tool will be described with reference to the flowchart of FIG.

(a); The NC program (8) required for processing is registered in advance and always exists in the cell control device (2) (not shown).

(b); N to be controlled in the cell control device (2)
C The machining schedule (7) for each machine tool (1) is assigned to the terminal device (5)
Register more.

(c); For each machining schedule (7) in which the machining work is to be executed by the system, the setup instruction is given from the terminal device (5) to each NC.
Do this for each machine tool (1).

(d); The worker performs the setup work in accordance with the processing schedule for which the setup is instructed, and when the setup is completed, the operator inputs the fact to the effect.

(e); For the machining schedule (7) for which setup has been completed, the machining operation instruction is displayed on the machine side operation panel (3).

(f); The operator sees this display, and if the machining operation is currently executable, and there is no other machining instruction that requires the priority of the machining operation, the operator operates the machine side operation panel (3). Press the confirmation switch (9).

(g); In the process of (e) above, if the machining work being displayed cannot be performed or if there is another priority, the machine side operation panel (3)
The desired processing schedule is obtained by pressing the selection switch (13). At this time, the machining schedule selected by the selection switch (13) is returned to the steps (e) and (f) and is displayed on the operation status display (12) of the machine side operation panel (3) to display the desired machining schedule. When the above is obtained, the above work confirmation switch
Press (9).

(h); After pressing work confirmation switch (9) in the above process,
Next, when the automatic start switch (10) is pressed, the NC program is sequentially supplied to the NC machine tool (1) according to the selected machining schedule, and the actual machining work starts.

(i); When one machining schedule is completed, the steps (c) to (h) are repeated for the next machining schedule.

(j); On the other hand, if any error occurs during machining work, an error message will appear on the operation status indicator (12). At this time, if the worker does not press the forced end switch (11), the machining work is continued until the machining schedule is completed, but when the worker sees the display and presses the forced end switch (11),
The machining schedule is interrupted and ends. Then, the process shifts to the above process (i), and if there is a next processing schedule, the above processes (c) to (h) are repeated.

[Effects of the Invention] As described above, according to the present invention, the terminal device of the cell control device gives a setup instruction for the amount required by the system, and the operator can see the operation status indicator on the machine side operation panel. From (4), the selection switch was operated to change the machining work order as needed, so that a desired machining schedule could be selected and a work confirmation switch was provided. When the machining schedule cannot be executed or a machining schedule that requires prioritized machining work occurs, the operator can flexibly respond to the selection, and the operation can be performed easily and at the same time. There is a practically extremely useful effect that driving can be prevented.

[Brief description of drawings]

1 is a block diagram of a machining system according to an embodiment of the present invention, FIG. 2 is a file configuration diagram of a machining schedule of the system of FIG. 1, and FIG. 3 is a machine side operation panel of the system of FIG. FIG. 4 is a flowchart showing the operation of the system shown in FIG. FIG. 5 is a configuration diagram of a conventional machining system, FIG. 6 is an external configuration diagram of a machine side operation panel of the system of FIG. 5, and FIG. 7 is a flow chart diagram showing an operation of the system of FIG. In FIG. 1, (1) is an NC machine tool, (2) is a cell control device, (3) is a machine side operation panel, (4) is an input / output interface control panel, and (5) is a terminal device. In FIG. 2, (6) is a processing schedule file,
(7) is the machining schedule, and (8) is the NC program name. In FIG. 3, (9) is a work confirmation switch, (10) is an automatic start switch, (11) is a forced termination switch, (12) is an operation status indicator, and (13) is a selection switch. The same reference numerals in the drawings indicate the same or corresponding parts.

Continued Front Page (72) Inventor Masao Katagiri 5-1-14 Yada Minami, Higashi-ku, Nagoya, Aichi Mitsubishi Electric Corporation Nagoya Works (72) Inventor Satoshi Makino 5-1-1 Yada Minami, Higashi-ku, Nagoya, Aichi No. Ryoden Engineering Co., Ltd., Nagoya Works (56) References JP-A-57-127651 (JP, A)

Claims (1)

[Claims] 1. A machine tool control system in a machine processing system including an NC machine tool, a cell control device for controlling the NC machine tool, and a machine side operation panel of the NC machine tool, wherein the cell control device comprises a plurality of machining programs. Has a file in which a plurality of machining schedules consisting of are stored, and the machining schedule of the files is read out according to a preset order to control the NC machine tool,
The machine side operation panel changes the machining schedule read from the file, selects a desired machining schedule and reads it, and an operation status display that displays at least the machining schedule read from the file. And a machining schedule displayed on the operation status indicator, the machining schedule displayed on the operation status indicator is operated by checking whether or not the machining schedule displayed on the operation status indicator can be executed. A machine tool control system characterized by having a work confirmation switch that enables execution, and enabling the operator to change / select the order of machining schedules at the time of machining work instructions by instructions from the machine side operation panel. .