JPH1076445A - Machine tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make an operating condition capable of being known of a machine, by providing a music selecting means selecting a desired music from in a performance information memory means corresponding to the condition of a machine tool such as generating abnormality and a music regeneration means regenerating this selected music. SOLUTION: An MIDI sound source 9 is provided, in which an MIDI performance data in conformity to an MIDI standard stored in an HDD19 to be loaded on an RAM3 by a CPU7 is read from the RAM3, converted into a low frequency analog voice signal and output to an audio amplifier 11. During work or in the case of generating abnormality, from in an MIDI performance data stored in the HDD19, a music in accordance with a state of a machine tool is selected, this selected music is regenerated by the MIDI sound source 9. In this way, the state of the machine tool, for instance, the content of a generated error can be judged by the music.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machine tool that automatically performs various types of machining and tool change according to a machining program at high accuracy and at high speed.

[0002]

2. Description of the Related Art Conventionally, when a workpiece is machined by automatic operation of a machine tool, an operator does not have to monitor the machine tool at all times in order to replace parts or deal with any abnormalities. He was monitoring while performing setup work beside the machine. For this reason, when the processing is completed or abnormal processing occurs during the setup operation, an alarm lamp is lit as a method of notifying the operator of the fact. In addition, a method is used in which a buzzer sounds when an abnormality occurs.

On the other hand, in order to know the current state of a machine tool, it is necessary to go to the side of the machine tool and look at a display panel provided on the machine tool, or directly look at a machining state from a window frame provided on the machine tool. Was doing.

[0004]

However, such a visual notification requires the operator to move to a place where an alarm lamp, a display panel, and the like are installed. In addition, the auditory notification of a buzzer or the like eliminates the need for the operator to move to the above-described location, but has a problem that only a limited amount of information can be transmitted.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and provides a machine tool that allows an operator to know the operation state of a machine without moving to a place where the machine tool is installed. The purpose is to:

[0006]

In order to achieve this object, a machine tool according to the present invention is directed to a machine tool that performs machining in accordance with a machining program, and particularly stores a plurality of music pieces as playable information. Performance information storage means, a music selection means for selecting a desired music from the performance information storage means in accordance with the state of the machine tool during processing, occurrence of an abnormality, etc., and a music selected by the music selection means Music reproduction means for reproducing.

Therefore, during processing or when an abnormality occurs, music is selected by the music selection means from the performance information storage means in accordance with the state of the machine tool, and the selected music is reproduced by the music reproduction means. doing.

According to a second aspect of the present invention, in the machine tool, the performance information storage means stores a volume and a performance time corresponding to each music, and the music reproduced by the musical sound reproduction means is stored in the performance information storage means. And a tone reproduction control means for controlling the tone reproduction means so as to stop after a lapse of the playing time stored in the musical tone reproduction means. Therefore, after the music selected by the music selection means is played at a desired volume for a desired time, the music reproduction control means stops the music reproduction means.

According to a third aspect of the present invention, in the machine tool, a command for selecting and playing a desired music piece from the music pieces stored in the performance information storage means during the processing program and suspending the execution of the performance. And analysis means for analyzing each of the instructions. Therefore, a command for selecting and playing a desired music and a command for stopping the performance can be set before and after each command such as tool change or spindle rotation, and a different music can be played for each operation.

[0010]

Embodiments of a machine tool embodying the present invention will be described below in detail with reference to the drawings.

First, the configuration of a machine tool according to the present embodiment will be described with reference to FIGS.

The machine tool according to the present embodiment is based on a machining program stored in a hard disk (HDD) 19 and has an X-axis motor 2 via a CPU 7 and an NC control unit 17.
9, Y-axis motor 35, Z-axis motor 41, spindle motor 23
Is driven to process the work.

The CPU 7 stores a ROM 1 in which a program for controlling the entire machine tool is stored, and various data such as a work area of the program, a performance condition table described later, and a music number-MIDI performance data file correspondence table. RAM 3, operation panel 5 including a start key, a stop key, etc., and display 45, and C indicating that a specified time has elapsed from the timing specified by CPU 7.
The timer 15 for notifying the PU 7 and the M stored in the HDD 19 and loaded on the RAM 3 by the CPU 7.
A MIDI sound source 9 for reading MIDI performance data conforming to the IDI standard from the RAM 3, converting the data to a low-frequency analog audio signal, and outputting the analog audio signal to the audio amplifier 11;
9, an NC control unit 17, and an external device communication I / F 14 for executing interface processing in communication with an external device connected to a machine tool.

The audio amplifier 11 amplifies a low-frequency analog audio signal output from the MIDI sound source 9 into a signal that can be output from a speaker. The speaker 13 converts the low-frequency analog signal amplified by the audio amplifier 11 into sound. The MID
The I sound source 9, the audio amplifier 11, and the speaker 13 constitute the musical sound reproducing means.

The external device communication I / F 14 is, for example,
This is for transmitting and receiving information from an external device that stores a processing program and various data by communication.

The NC controller 17 executes a motion command generated by the CPU 7. Specifically, the motion command content is decomposed into finer position commands for each axis. The NC controller 17 periodically reads out feedback information from the encoder and outputs a position command to the servo amplifier based on the information. Furthermore,
The NC control unit 17 includes servo amplifiers 21 to be described later,
The current value information indicating the motor load from 27, 33, and 39 is read and output to the CPU 7.

The HDD 19 is a hard disk for storing and holding a large amount of data. The HDD 19 includes machining programs, tool data such as tool attributes and tool use elapsed time, MIDI performance data that can be decoded by the MIDI sound source 9, and various operating states of the machine tool. Is stored.

The servo amplifiers 21, 27, 33, 3
Reference numeral 9 denotes a position command of the NC control unit 17 and each encoder 2
5, 31, 37, and 43, the main axis, the X axis, and the Y axis are respectively calculated from the actual movement amounts per unit time fed back from the unit.
In order to control the rotation of the motor corresponding to the axis and the Z axis, the current value supplied to each of the motors 23, 29, 35 and 41 is controlled.

The motors 23, 29, 35 and 41 convert the electric energy supplied from the servo amplifiers 21, 27, 33 and 39 into the rotational kinetic energy of each of the main shaft, X-axis, Y-axis and Z-axis. Is converted to The encoders 25, 31, 37, and 43 are respectively a spindle,
It is attached to each of the X-axis, Y-axis, and Z-axis rotation axes, measures the actual number of rotations per unit time, and notifies the servo amplifier.

Next, the configuration of the performance condition table stored in the HDD 19 will be described with reference to FIG.

In FIG. 3, the left end column shows the state of the machine tool (error state, operation), and the next column shows the state of the machine, for example, the error name such as abnormal spindle current value and the like. The completion of the machining program operation is shown. The next column shows the name of the music that is played depending on the state of the machine, the next column shows the volume at the time of performance, and the next column shows the performance time. ing. Therefore, if a stroke over error occurs,
The Spring Song will be played at a medium level for 15 seconds.

Further, in this embodiment, as shown in FIG. 4, there are provided instructions for designating and stopping the performance, and the instructions can be freely defined in the machining program. The instruction to specify the performance is G850 in the line N12. Immediately after I is a parameter indicating the music number, and the number following I can designate the music number shown in FIG. The following K is a parameter for specifying the volume, and the volume following K can be specified by the number following 0 (minimum level for 0, medium level for 1 and maximum level for 2). . The instruction to stop the performance is G851 on the line N20.

In the HDD 19, as shown in FIG.
A music piece number and a file name of MIDI performance data corresponding to the number are stored.

Next, the operation of the machine tool according to the present embodiment, in particular, the processing for reproducing a musical tone according to the state of the machine will be described.

The processing for controlling the automatic operation in the automatic operation mode of the machine tool according to the present embodiment, the performance processing when an abnormality is detected and the processing program is completed will be described with reference to the flowcharts of FIGS. .

The flowchart of FIG. 6 is executed when the user presses a start key after inputting a desired machining program number from the operation panel 5.

First, an event that is a factor that causes a branch of the control program operation of the machine tool, for example,
It is determined whether an abnormality has been detected, an emergency stop button has been pressed, a machining program for one block has been completed, a machining program has been completed, and the like (Step 100; hereinafter, the steps are represented by S). If it is determined in S100 that no event has occurred (No in S100), the machining program designated by the machining user is decoded by a program decoder (not shown) (S104), and the decoded data is used as a motion command by the NC controller 17. And the operation of the machine tool is executed (S106). Then, in order to perform the processing of the next block, the processing is performed in S10.
Move to step 0.

On the other hand, if it is determined in step S100 that there is an event (Yes in S100), a subroutine for event processing described later is called (S10).
2) End the process.

Next, the event processing subroutine will be described with reference to the flowchart of FIG.

First, it is determined whether or not the event that has occurred is the end of the machining program (S200). When the occurred event is the end of the machining program (S20
0, Yes), it is checked with reference to the performance condition table for each operation state shown in FIG. 3 whether or not there is a performance setting when the machining program is completed (S202). When there is a performance setting (S2
02 (Yes), a subroutine described later for performing the performance process is called (S204). Thereafter, the process exits the event processing subroutine. On the other hand, when it is determined that there is no performance setting (No in S202), it is determined whether or not the generated event is an alarm (S206). When it is determined that there is an alarm (Yes in S206), a subroutine for performing error processing described later is called (S208).
The event processing subroutine ends. In S206, when it is determined that there is no alarm, it is determined whether or not the event that occurred is G850 (S210). When the performance processing is completed, the processing shifts to S100 shown in FIG. In S210, the event that has occurred is G
If it is determined that the event is not 850, the event is G851
Is determined (S214). If the event that occurred is G851, the performance is stopped (S216).
The process proceeds to S100 shown in FIG. If it is determined that the event is not G851 (No in S214), the event processing subroutine ends.

As described above, in the event processing subroutine,
The performance is started or stopped depending on the event that has occurred.

Next, the performance processing subroutine will be described.
This will be described with reference to the flowchart of FIG.

First, the music corresponding to the event that has occurred is selected based on the table shown in FIG. 3 (S30).
1) The MIDI performance data of the selected music is read from the hard disk (S302), the performance is started, and the performance time of the selected music is set in the performance time timer based on the table shown in FIG. 3 (S303). Thereafter, it is determined whether or not the time set in the performance time timer has elapsed since the performance was started (S304), and when the time set in the performance time timer has elapsed (S304).
Yes), the musical performance is stopped (S305), and the process ends.

Next, the error processing subroutine will be described with reference to the flowchart of FIG.

First, the motors 23, 29, 3
The rotation of 5, 39 is stopped (S401), and the type of error that has occurred is displayed on the display 45 of the operation panel 5 (S402). The type of error that has occurred is, for example, when a spindle current value abnormality occurs in the spindle servo amplifier 21, a signal of the spindle current value abnormality is input from the spindle servo amplifier 21 to the CPU 7 via the NC control unit 17,
Can be determined from the input signal.

Thereafter, the subroutine of the performance process described above is called (S403), and the subroutine of the error process is terminated.

As described above, in the error processing subroutine, the alarm is displayed and each axis is stopped based on the signal input to the CPU 7 from the location where the abnormality has occurred.
At the same time, the music corresponding to the alarm is performed.

Next, the subroutine of the program performance processing will be described with reference to the flowchart of FIG.

First, a music piece number designated by the parameter I following G850 is obtained, and MIDI performance data corresponding to the number is obtained from the HDD 19 into the RAM.
(S501). In the example shown in FIG. 4, since 1 is set after I, as shown in FIG. 5, EN00001. MDI file to RAM
To load. Next, volume data specified by the parameter I is acquired, and the
Is set (S502). In the example shown in FIG. 4, since 2 is set after K, the maximum volume is set to the MIDI sound source 9.

Thereafter, a performance start command is output to the MIDI sound source 9 (S503), and the subroutine of the program performance process is completed.

In the above-described program performance processing subroutine, the performance processing corresponding to the performance specification of the musical tone described in the processing program can be performed at a desired volume.

Note that the processing steps of S301 and S501 function as music selection means,
The processing step 3 functions as a musical sound reproducing means,
The processing steps of S16, S304, and S305 function as tone reproduction control means.

As is apparent from the above description, in the machine tool of the present embodiment, during processing or when an abnormality occurs, music data corresponding to the state of the machine tool is selected from the MIDI performance data stored in the HDD 19. Is selected and the selected music is reproduced by the MIDI sound source 9, so that the state of the machine tool, for example, the content of the error that has occurred can be determined by the music.

It should be noted that the present invention is not limited to the embodiments described above, and various changes can be made without departing from the scope of the invention. For example, in the present embodiment, the instruction to select and play a desired music is configured so that the desired music is designated by the music number. And may be configured to specify a genre such as enka or new music.

[0045]

As is apparent from the above description, in the machine tool device according to the first aspect, during processing or when an abnormality occurs, the playable information stored in the performance information storage means is selected from the playable information. Select a song according to the state of the machine tool,
Since the selected music is reproduced by the musical sound reproducing means, the state of the machine tool, for example, the content of the error that has occurred can be determined based on the music played.

In the machine tool according to the present invention, after the music selected by the music selecting means is played at a desired volume for a desired time, the music reproducing means is stopped by the musical sound reproducing control means. Therefore, the state of the machine tool can be known from the playing time and the volume.

The machine tool according to the third aspect of the present invention sets a command for selecting and playing a desired music and a command for stopping the performance before and after each command such as tool change and spindle rotation. Can play different songs, and can grasp the current state of the machine tool without moving to the installation location of the machine tool.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a machine tool.

FIG. 2 is an external view of an operation panel.

FIG. 3 is a diagram showing a table for storing a music piece, a volume, and a performance time for each operation state;

FIG. 4 is a diagram showing an example of a processing program using a performance start command and a stop command. It is an automatic operation processing flowchart.

FIG. 5 is a diagram showing a table when storing a music piece number and a file name in association with each other.

FIG. 6 is a flowchart showing a process of automatic driving.

FIG. 7 is a flowchart of an event processing subroutine.

FIG. 8 is a flowchart of a performance processing subroutine.

FIG. 9 is a flowchart of an error processing subroutine.

FIG. 10 is a flowchart of a program performance processing subroutine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ROM 3 RAM 7 CPU 9 MIDI sound source 13 Speaker 19 HDD 21 Servo amplifier for spindle 23 Servo for spindle

Claims (3)

[Claims] 1. A machine tool for performing machining in accordance with a machining program, a performance information storage means for storing a plurality of music pieces as playable information, and the performance information corresponding to a state of the machine tool such as machining or occurrence of an abnormality. A machine tool comprising: a music selection means for selecting a desired music piece from a storage means; and a tone reproduction means for reproducing the music piece selected by the music selection means. 2. The musical performance and the musical time corresponding to each music are stored in said musical performance information storing means, and the musical composition reproduced by said musical sound reproducing means is stopped after the musical performance time stored in said musical performance information storing means elapses. 2. The machine tool according to claim 1, further comprising a tone reproduction control means for controlling the tone reproduction means so as to perform the operation. 3. The processing program includes an instruction to select and play a desired music piece from the music pieces stored in the performance information storage means, and an instruction to stop execution of the performance. The machine tool according to claim 1, further comprising an analyzing unit configured to analyze the machine tool.