JPH06124113A - Interactive numerical controller - Google Patents

Abstract

PURPOSE:To easily compensate deficit interactive data in the case of lacking interactive data in interference checking by NC data. CONSTITUTION:This controller is provided with a storage means 1 for storing plural pieces of working command information with codes indicated by the NC data or/and the interactive data a read means 2 for retrieving the storage means and reading the working command information provided with the same code, plotting means 3, 4, 5, 6 and 7 for generating a part of all of interference plotting data for the interference checking based on the NC data and/or the interactive data of the read working command information, a display means 8 for displaying the interference plotting data. Then a code imparting and storing means 10 for imparting the code same as the code of the read working command information to the inputted interactive data and storing them in the storage means 1 when a part of the interference plotting data are displayed and the lacking interference plotting data are inputted in an interactive form for the interference checking.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interactive numerical control device having a machining simulation function, and more particularly to an interactive numerical control device for graphically displaying a state of interference check.

[0002]

2. Description of the Related Art Conventionally, in this type of interactive numerical control device, N created by an interactive automatic programming function is used.
In order to check whether or not the machine tool performs the machining operation as planned by C data before the actual machining operation, the material shape, tool shape, tool locus, etc. are shown on the screen of the display device for machining simulation. It is equipped with functions that can be performed.

FIG. 5 shows the configuration of a conventional interactive numerical control apparatus. In the figure, the interactive numerical control device, based on the interactive data input interactively according to the interactive input screen displayed on the screen of the display device 42,
An interactive unit that creates C data and an NC unit that analyzes and operates the created NC data and controls the machine tool 37 are provided.

First, the structure of the NC section will be described. The processor 31 controls the entire apparatus according to the system program stored in the ROM 32.
The RAM 33 stores various kinds of data or input / output signals during the calculation. In addition, the nonvolatile memory 40 has N
The C data is stored, and the NC data is read out for controlling the operation of the machine tool 37 or read out for use in machining simulation. This N
The C data includes data necessary for machining, including tool trajectory data.

The graphic control circuit 41 converts a digital signal input from the processors 31 and 51 into a display signal and outputs the display signal to the display device 42. The display device 42 interactively creates NC data. When
Material shape, processing conditions, which are input or selected interactively,
Numerical data etc. entered in response to the interactive form are displayed sequentially.

The axis control circuit 34 also includes a processor 31.
Receives a movement command of an axis from the servo amplifier 35 and gives a movement command of the axis to the servo amplifier 35.
5 drives the servomotor of the machine tool 37. These components are the bus line 30.
Are connected to each other by.

Further, the PMC (programmable controller) 36 uses the bus line 3 when executing the machining program.
When a signal such as a tool change command is received via 0, the signal is processed by a sequence program, a control signal as an operation command is output, the machine tool 37 is controlled, and a status signal is received from the machine tool 37. Performs sequence processing, and the processor 31 via the bus line 30.
It is intended to transfer the necessary signals to.

Further, the bus line 30 is further provided with an external storage such as a floppy disk or an IC card in which soft keys 43 for selecting a display menu on the screen at the time of interactive input, a keyboard 44, NC data and the like are stored. An I / O device 38 such as a serial interface for connecting devices is connected.

On the other hand, the structure of the dialogue unit will be described.
A processor 51 for automatic programming is provided, and the bus line 50 stores a program for automatic programming and a ROM 52 that stores question contents when interactively input as a display menu, and interactive data that is interactively input. The RAM 53 and the non-volatile memory 40 common to the NC section are connected.

Therefore, the types of work that can be set interactively or the types of data that can be input are displayed on the screen in a menu format. Then, which item of the display menu is selected is selected by pressing the soft key 43 arranged at the lower portion of the screen corresponding to the display menu. Interactive data that can be input in such an interactive format includes, for example, tool trajectory data, setup data, tool shape data, and material shape data. Of this,
Data for tool path (data related to movement of tool edge) can be input by manual data input as well as interactive input, but setup data, tool shape data, and material shape data are usually input only in interactive format. It is something that cannot be done. In addition,
The setup data is data representing the tailing shape, the chuck shape, and the chuck claw shape.

In this way, the dialogue data input using the soft keys 43 and the keyboard 44 is stored in the ROM 52.
Is processed by the processor 51 using the automatic programming program stored in the non-volatile memory 4
Will be stored in 0. As a result, the non-volatile memory 40 stores setup data, tool shape data, and material shape data in addition to the tool trajectory data.

When the machining simulation is executed, the machining command information stored in the non-volatile memory 40 is read and analyzed by the processor 31 of the NC unit, and drawing data of the tool locus is generated. The tool trajectory drawing data is combined with the drawing data such as the tool shape input in the interactive form, and all the drawing data related to the processing is combined on the screen to enable the processing simulation, and further, the tool for the material. Moving the cutting edge,
It is possible to perform so-called interference check, which comprehensively checks the position of the chuck when moving the tool blade.

Even when NC data is created by manual data input without using the interactive programming function, the machining simulation can be performed in the same manner as above. However, normally, in this case, since the setup data, the tool shape data, and the material shape data which can be input only in the interactive form are not included, only the drawing of the tool path is performed.

[0014]

However, in the conventional numerical control device as described above, the nonvolatile memory 40 is used.
Unless all the tool path data, setup data, tool shape data, and material shape data are included in one file, the interference check cannot be performed. Specifically, NC data created by an operator using another numerical control device through manual data input includes tool path data, but setup data and tool shape data that can only be entered interactively. , Material shape data is not included, so N
When the C data was input to the NC section, only the tool locus was displayed and the interference check could not be performed.

Further, although the tool shape data and the material shape data are input in addition to the tool trajectory data by using the automatic programming function of the dialogue section in another device, the programming is terminated without inputting the setup data. Even when NC data is created through the compiler, tool traces, tool shapes, and material shapes can be displayed, but there are setup data for displaying those such as chucks, chuck claws, and tailstocks. Therefore, the interference check could not be performed even in this case.

Further, in the conventional numerical control device, N
The machining instruction information represented by the C data or the machining instruction information represented by the NC data translated by the compiler after being input in the interactive format is used to interactively communicate the dialogue data lacking in the interference check later. There was a problem that it could not be added by the department.

In the present invention, in consideration of the problems relating to the conventional numerical control apparatus as described above, the insufficient dialog data is additionally registered to the machining command information for which the dialog data for interference check is not complete. It is an object of the present invention to provide an interactive numerical control device capable of performing.

[0018]

DISCLOSURE OF THE INVENTION The present invention relates to a storage means for storing a plurality of processing command information represented by NC data and / or interactive data by interactive input with file codes, respectively, and storage means therefor. Reading means for searching the storage means to read the machining instruction information with the same file code, and a part or all for the interference check based on the NC data and / or the dialogue data of the read machining instruction information. The drawing means for generating the interference drawing data, the display means for displaying the interference drawing data generated by the drawing means, and a part of the interference drawing data being displayed are insufficient for the interference check. When the interference drawing data is input in the interactive format, the input interactive data is the same file code as the file code attached to the read machining command information. A conversational numerical control apparatus comprising a sign applying storage means for storing in said storage means designated by the Le code.

[0019]

According to the present invention, if the interference drawing data to be displayed on the display device is insufficient as a result of the interference check, if the missing interference drawing data is additionally input in an interactive manner, the addition is performed. The input dialog data is stored in the storage means with the same file code as the file code added to the previously read processing command information. Thereby, the reading means searches the storage means to read the machining instruction information having the same file code, and the drawing means generates the interference drawing data based on the NC data and / or the dialogue data of the read machining instruction information. Then, all the interference drawing data are displayed together on the display means, and the interference check can be performed.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an NC control device having an interactive programming function which is an embodiment of the present invention, and the configuration will be described below.

In the non-volatile memory 1 serving as a storage unit that is referred to when performing a machining simulation in the figure, a plurality of machining instruction information are classified and stored in files with program numbers as file codes. For example, a machining file stores machining instruction information to be instructed to the device, such as a cutting procedure, cutting conditions, a tool type, a tool replacement instruction, and a tool moving path based on a part drawing. The nonvolatile memory 1 is composed of a battery backed up CMOS.

Further, the data format of the machining command information is a manual data input (hereinafter referred to as MDI).
There are NC data input by, the NC data input in an interactive format and translated by a compiler, the interactive data input in an interactive format without passing through the compiler, etc., and they are mixed and stored in the nonvolatile memory 1. Further, the processing command information may be fetched from an external storage device via an I / O device (not shown).

N stored in the nonvolatile memory 1
The C data and the dialogue data are then given to the reading unit 2 as a reading means. The reading unit 2 retrieves and reads the NC data and the dialogue data stored in the non-volatile memory 1 to which the same program number is added, and then transfers the NC data as they are to the analysis calculation unit 3,
The dialogue data is translated into NC data and then transferred to the analysis calculation unit 3.

The analysis calculation unit 3 extracts the tool locus data from the transferred NC data, and connects the two points before and after the commanded line with a designated curve (for example, straight line, arc, etc.) and feed rate. Then, the coordinate data relating to the movement of the tool edge (hereinafter referred to as the tool edge coordinate) is calculated by performing an operation that is a movement path of the tool edge, that is, an interpolation operation, and then the tool edge coordinate is used by the tool path drawing unit 4, the tool shape. -The data is transferred to the material shape data drawing unit 5.

If the non-volatile memory 1 stores dialogue data created by using an external dialogue automatic programming function, it includes material shape data and tool shape data in addition to the tool trajectory data. Sometimes,
Furthermore, setup data such as the chuck claw shape may be included. Therefore, when such dialogue data is stored in the non-volatile memory 1, the reading unit 2 also extracts these dialogue data and transfers the dialogue data to the analysis calculation unit 3. According to the identifiers assigned to the data, the tool shape data, and the setup data, the interactive data are distributed to the tool shape / material shape data drawing unit 5 and the setup data drawing unit 6.

Further, the keyboard 11 and the soft keys 11 '
Is used when interactively inputting interactive data, and the interactive data input from the keyboard 11 and the soft keys 11 ′ is given a program number and an identifier via the setting unit 10 as a code giving storage means. , Stored in the nonvolatile memory 1.

Further, the tool locus drawing unit 4 recognizes the movement locus of the tool cutting edge from the coordinate change in the tool cutting edge coordinates sequentially transferred from the analysis calculation unit 3, generates the drawing information of the tool locus, and synthesizes and draws. Transfer to section 7. Further, the tool shape / material shape data drawing unit 5 sequentially recognizes the scraped part of the material from the coordinate change in the tool edge coordinates and generates drawing information of the material shape, and also generates drawing information of the tool shape and the material shape. Then, the data is transferred to the composite drawing unit 7 as the composite drawing means. In addition, the setup data drawing unit 6 determines the tailing shape,
Drawing information of the chuck shape and the chuck claw shape is generated.

Then, the composite drawing unit 7 combines the tool trajectory drawing information, the tool shape data drawing information, the material shape drawing information, and the setup data drawing information, and draws on the display device 8 as a display means. It is like this. these,
Analysis calculation unit 3, drawing units 4, 5, 6 and composite drawing unit 7
Serves as a drawing means.

Therefore, when the non-volatile memory 1 has all the tool locus data, tool shape data, material shape data, and setup data, the tool locus, tool shape, material shape, The tailing shape, chuck shape, and chuck claw shape are displayed respectively, and interference check can be performed. However, non-volatile memory 1
If, for example, the setup data does not exist, the setup data does not appear on the display device 8 as a matter of course.
Interference check cannot be performed. Therefore, in such a case, the operator will add the insufficient setup data by interactive input.

FIG. 4 is a drawing data input screen displayed on the display device 8 when the interactive input is performed. In the figure, the drawing data input screen displays a minimum amount of data required for the interference check, that is, tool shape data, material shape data, and setup data. You can enter the dialogue data.

Regarding chuck claw data as one of the above-mentioned setup data, a method of registering the claw data by selecting a claw number provided for a chuck claw shape pattern registered in advance, and each part of the claw. There are two ways to register by entering the main data. When the nail data is registered, it is possible to display the nail information related to the selected nail number on the drawing data input screen.

The input of the tool shape data can be registered for each tool number. Specifically, move the cursor to the tool number (one of T1 to T8) to be registered, and press the soft key 11 '"Select Tool" at that position.
Or select either "Tool registration". When "Tool selection" is selected, a desired tool can be selected from the tool files registered in advance. Also, when "Tool registration" is selected, it is only necessary to input the minimum necessary data for drawing the tool shape on the tool registration screen.

Regarding the input of material data, data such as the material outer diameter, the material inner diameter, the material total length, and the end face machining allowance are manually input.

The figure displayed on the upper left side of the drawing data input screen is the chuck claw 26 and the chuck claw 2.
6 shows a material 27 (a cylindrical material in this case) gripped by 6, and a graphic 28 displayed on the lower left side of the screen is an enlarged view of the chuck claw, and each dimension A to D is a question item of the claw type. Corresponds to A to D.

The chuck claw shape and the material shape on the screen are shown by reflecting the ratio of the dimensions input by the above method. Further, the tool shape 29 displayed on the right side of the drawing data input screen corresponds to the selected code (code T2 in this embodiment), and codes T1 to T8.
The contents displayed on the screen change as the cursor moves up.

If the tool shape data, the material shape data, and the setup data necessary for the interference check are already prepared in the non-volatile memory 1 before the interactive data is input in the interactive form, the drawing data input screen is displayed. Cannot input such dialogue data, but can be called and used for the purpose of referring to the dialogue data that has already been input.

Tool shape data and material shape data input interactively from such a drawing data input screen are as follows:
If the program number of the read machining command information is "O", the program number "O" and the identifier ".YEN"
Is created in the file to which is added and stored in the non-volatile memory 1. Further, the setup data input from the dialogue unit in the dialogue format is the program number “O” and the identifier “.S”.
It is created in a file to which “ET” is added and is also stored in the nonvolatile memory 1. The nonvolatile memory 1 is stored in advance.
A program number "O" and an identifier ".YES" are given to the file of the tool locus data stored in. The program number "O" in the interactive input is input by the operator, and the identifier is automatically given.

As described above, even if the tool locus data, the tool shape data, the material shape data, and the setup data are stored in different files, they are regarded as one machining command information because they have the same program number. It will be. Therefore, if the data having the same program number "O" is called from the non-volatile memory 1 and the tool trajectory, the tool shape, the material shape, and the setup data are processed and synthesized according to the identifier, the tool trajectory on the same screen, Tool shape, material shape, tailing shape, chuck shape, chuck jaw shape can all be displayed.

Next, the operation of the interactive NC control system of this embodiment will be described with reference to the flow chart shown in FIG.
The machining command information to be subjected to the interference check is stored in the file with the program number "O".

First, the soft key 11 for starting the interference check
By pressing ′, the processing simulation is started. When the machining simulation starts, the data (program number "O") in the non-volatile memory 1 is read by the reading unit 2 (step S1), the tool locus data (identifier "YES") is first extracted, and the analysis calculation unit 3 It transfers to each drawing part 4, 5, 6 via.

Next, the reading unit 2 searches the tool shape data and the material shape data (program number "O", identifier "YEN") for the read data (step S2), and the tool shape data and the material shape data exist. Then, the data is read and the read tool shape data and material shape data are transferred to the tool shape / material shape data drawing section 5 via the analysis calculation section 3 (step S3).

The reading unit 2 further searches the setup data for setup data (program number "O", identifier "SET") (step S4). If setup data exists, the setup data is read and the setup data is read. The read setup data is transferred to the setup data drawing unit 6 via the analysis calculation unit 3 (step S5).

The tool trajectory drawing information output from the tool trajectory drawing unit 4, the tool shape drawing information and the material shape drawing information output from the tool shape / material shape data drawing unit 5, and the setup data drawing unit 6 are output. The setup data drawing information is further combined by the combining / drawing unit 7,
It is displayed on the screen of the display device 8 (step S7).

The process described above is a case where all the data for the interference check are prepared in advance in the non-volatile memory 1, and is essentially the same as the conventional interference check process. The characteristic part of the present invention will be described below.

On the screen of the display device 8, if the tool shape data and the material shape data do not exist in the read data in step S2, and if the setup data does not exist in the read data in step S4. Since the tool shape, the material shape, the tailing shape, the chuck shape, and the chuck claw shape are not displayed in, the operator additionally inputs the tool shape data, the material shape data, and the setup data by interactive input.

For interactive input of the tool shape and the material shape, refer to the "use T code" and "material data" on the drawing data input screen (see FIG. 4) and operate the keyboard 11 or the soft key 11 '. After selecting the tool and setting the material, the setting section 10
Those data are stored in the non-volatile memory 1 as a file having a program number “O” and an identifier “YEN”.

For interactive input of setup data, refer to "nail data" on the drawing data input screen, and operate the keyboard 11 or soft key 11 'in the same manner to specify nail data, nail number, and nail type. When the setting is performed, the setup data is stored in the nonvolatile memory 1 as a file having the program number “O” and the identifier “SET” via the setting unit 10.

The tool shape / material shape data thus stored in the nonvolatile memory 1 is read by the reading section 2 and transferred to the tool shape / material shape data drawing section 5 via the analysis / calculation section 3. (Step S
6). The setup data stored in the non-volatile memory 1 is read by the reading unit 2 and transferred to the setup data drawing unit 6 via the analysis calculation unit 3 (step S6).

As a result, when the interference check is executed again, the tool trajectory drawing unit 4 outputs the tool trajectory drawing information, and the tool shape / material shape data drawing unit 5 outputs the tool shape and material shape drawing information. The drawing information about the chuck is output from the setup data drawing unit 6, and the drawing information is combined by the combining drawing unit 7 and displayed on the screen of the display device 8 to perform an interference check. Yes (step S7).

FIG. 3 shows the interference check screen appearing on the screen of the display device 8. As can be seen from this screen, the material 2 gripped by the chuck 20 (chuck shape)
1 (material shape), tool locus 22, tool 23 (tool shape)
Are all displayed, so before performing the actual machining,
You can comprehensively check how each element works in relation to each other. The reference numeral 24 displayed at the bottom of the screen is a function that can be selected by the soft key 11 '. The code "O0001" at the top of the screen is a program number.

Although the storage means of the present invention is constituted by a battery-backed CMOS as a non-volatile memory in the above embodiment, the storage means is not limited to this, and can be connected via an interface such as a floppy disk or an IC card. It can also be configured by an external storage device.

Although the file code of the present invention is the program number in the above embodiment, it is not limited to this and may be any code that can identify and specify a plurality of machining command information. May be.

Further, the interactive data of the present invention is the tool shape data, the material shape data and the setup data in the above embodiment, but is not limited to this, and may include other data which can be input in an interactive form. It may be.

Further, although the control means of the present invention is implemented by software using a microcomputer, it may be implemented by a dedicated hardware circuit that performs those functions.

Further, the present invention can be applied to any device that can input drawing data in an interactive form and displays a figure based on the drawing data.

[0056]

As is apparent from the above description,
In the interactive numerical control device according to the present invention, when the dialog data for the interference check is not available, the missing dialog data can be additionally registered as a separate file, and therefore stored in the storage means. It has an advantage that interference check can be performed at any time regardless of the format of the data.

Further, since the interference check can be performed at any time, the program check can be performed accurately in a short time.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is a flow chart showing the operation of the embodiment.

FIG. 3 is an explanatory diagram showing an interference check screen according to the embodiment.

FIG. 4 is an explanatory diagram showing a drawing data input screen according to the embodiment.

FIG. 5 is a block diagram showing a configuration of a conventional technique.

[Explanation of symbols]

 1 non-volatile memory (storage means) 2 reading section (reading means) 3 analysis calculation section (drawing means) 4 tool trajectory drawing section (drawing means) 5 tool shape / material shape data drawing section (drawing means) 6 setup data drawing section (Drawing means) 7 Composite drawing section (drawing means) 8 Display device (display means) 10 Setting section (signing storage means) 11 Keyboard 11 'Soft key

Claims (1)

[Claims] 1. Storage means for storing a plurality of processing command information represented by NC data and / or interactive data by interactive input with a file code, and the same storage device is searched for the same storage means. Reading means for reading the machining command information with a file code and drawing for generating a part or all of the interference drawing data for interference check based on the NC data and / or the dialogue data of the read machining command information Means, a display means for displaying the interference drawing data generated by the drawing means, and a part of the interference drawing data is displayed, the interference drawing data that is insufficient for the interference check is input interactively. If the input dialogue data is added with the same file code as the file code attached to the read machining command information, Conversational numerical control apparatus characterized by comprising a sign applying storage means for storing the unit.