JPH0857744A - Input data display method in interactive numerical control system - Google Patents

Abstract

PURPOSE: To reduce the work burden of an operator and allow a more desirable machining program to be set more easily in a method of displaying input data on a display image plane at the time of registering the machining program into a numerical control system for a CONSTITUTION: When the cursor 1 of a display image plane 3 moves to a surface roughness input item, a tool control number input item, a T-code input item 2, or the like, a window is opened in the display image plane 3, and limited data that can be inputted to this item is retrieved or computed and displayed in a chart form on the window. When the cursor 1 moves to the surface roughness item, for instance, a triangular sign indicating surface roughness and a data group indicating the relation between the corresponding maximum surface roughness Rmax and the tool feed quantity are displayed in a chart in the window. In the case of specific data being inputted to the surface roughness item, the corresponding data is reversed or displayed with emphasis.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a numerical control device for a machine tool, which is provided with an operation panel having a display screen and which can input a processing program by an interactive process with an operator. The present invention relates to a method of displaying input data on a display screen during registration.

[0002]

2. Description of the Related Art When registering a machining program (NC program generation) in a numerical controller by interactive processing, a machining area, a machined surface roughness, a tool used, a machining speed, a tool feed speed for each machining step. Etc. must be specified, and a code number (hereinafter referred to as "T code") that indicates the mounting position of the machining unit to be used on a 2-spindle facing lathe or multi-axis drilling machine, and the tool to be used on a turret lathe. Have to enter.

FIG. 6 shows an example of a screen display of the display screen 3 at the time of registering such data. FIG. 6 shows an example of a two-spindle facing lathe, in which the item 42 of the process is the type of machining (finishing of the bar material in the example of the figure), and the item 43 of the machining area is the machining area (outer diameter machining in the example of the figure). , The item 44 of the unit is the type of the processing unit (the left processing unit in the example in the figure), the item 45 of the surface roughness is the processed surface roughness,
The tool management number item 46 is the registration number of the tool to be used, the peripheral speed item 47 is the machining speed, and the cutting feed item 48.
The feed speed is registered in the table, and the code indicating the position on the turret where the tool is mounted is registered in the T code item 49.

Of the input items for each process as described above,
If the items 42 and 43 of the process and the machining area are designated, the range of tools that can be used in the process is determined. The numerical control device has tools that can be used in machining programs. For example, tools for outer diameter machining have registration numbers in the 100s, tools for inner diameter machining have registrations in the 200s, and drills have 600s. Several kinds of tools are registered, such as giving a registration number. And for each tool, the data of the tool, such as whether it can be used for roughing or finishing, material, cutting edge radius (nose R), cutting edge angle, rake angle, clearance angle, etc. The data is registered.

Therefore, for example, when selecting a tool (inputting a management number item), when the cursor 1 moves to the tool management number item 46 on the display screen 3, a window displaying registered tool data in a list format. Open and open the control number from the operator and enter it, or register the most versatile tool as a standard tool for each machining type (determined by the data of the process and machining area). Everything, item 42 of process and processing area, 43
Is set, a means for reducing the work load on the operator is taken by a method such as automatically setting the corresponding standard tool number in the management number item 46.
In the latter method of automatically setting the management number, when using a tool different from the standard tool, the operator moves the cursor 1 to the item 46. By this operation, the window in which the tool list is displayed is automatically opened. Therefore, the operator selects a tool more suitable for machining from the window and corrects the tool management number item.

With respect to surface roughness, tool management number and feed rate items 45, 43 and 48, if the surface roughness and the tool to be used are determined, the maximum feed rate allowed from the nose R of the tool is determined. Have a relationship. Therefore, an arithmetic expression is registered in advance in the numerical control device, and when the surface roughness and the tool management number items 45 and 46 are set, the feed rate is automatically calculated and set to save the operator's labor. There is.

After inputting the basic machining data as described above, the operator further inputs a finishing dimension, a movement locus of the tool, etc. to set a fine machining program, and the subsequent steps are also performed. A series of machining programs is completed by setting up with various procedures.

[0008]

The interactive input processing as described above facilitates the registration of the machining program in the numerical control device. However, the operator is not required to register the machining program in the following points. The operability is not satisfactory enough.

First, in any input processing,
It is necessary to set the T code that indicates which turret number is used to perform machining, but since the entire machining program cannot be displayed on one screen, the turret number number is not displayed at the end of the program. It becomes impossible to know whether it is used, and it is necessary to switch the screen to check the used T-code or make a note every time the T-code is designated. Normally, when tooling, it is common to alternate tooling for inner diameter tools and outer diameter tools.
Further, since the tool used may be limited depending on the position of the turret, it is very often impossible to know which T-code was used.

Secondly, the finished surface roughness is usually indicated by a triangular symbol in the machining drawing. However, in actual processing, Rm
It is evaluated by ax (maximum surface roughness). Rmax is greatly affected by the tool nose R and the tool feed amount. Therefore, the operator must calculate Rmax from the tool nose R and the feed amount and check whether the surface roughness is appropriate.

Thirdly, in the setting of the management number of the tool for each process, when the tool number window is opened when the control number item is moved, the tool data is checked from the displayed list. The task of selecting the tool to use is cumbersome. On the other hand, the method to automatically set the control number of the standard tool is to check what the nose R of the tool is, or if you do not have the standard tool and want to use another tool for machining. For example, it is necessary to operate the keys one by one to display the tool list, which makes the operation troublesome.

In view of the above problems, the present invention reduces the work load on the operator at the time of registering a machining program by the interactive processing of the numerical control device, and enables a more preferable machining program to be set more easily. The task is to do.

[0013]

According to the present invention, when the cursor 1 on the display screen 3 moves to the surface roughness input item 11, the tool management number input item 21, the T code input item 2, etc., Window 1 on display screen 3
The above problem is solved by opening 3, 23, 4 and searching or calculating limited data that can be input to the item and displaying the data in a list format in the window.

According to the present invention, a means for opening windows 13, 23, 4 on the display screen 3 when the cursor 1 moves to a predetermined data input item 11, 21, 2 and data input to other items. It is composed of means for searching or calculating a data group that can be input to the item using the means, and means for displaying the searched or calculated data group in a list form in a window.

Specifically, the cursor 1 indicates the surface roughness item 11
When moved to, a group of data indicating the relationship between the triangular symbol 14 for displaying the surface roughness and the corresponding maximum surface roughness Rmax and the tool feed amount is displayed in the window 13 as a list.
If specific data is input to the surface roughness item 11, the corresponding data among the listed data is highlighted or highlighted.

When the cursor 1 is moved to the T code input item 2, the T code 5 already used by the machining program is searched and displayed in the window 4 in a list form. This allows the operator to immediately confirm the unused T-code.

When the standard tool used for the machining type is automatically set in the management number input item 21, when the machining type is input, the cursor 20 moves to the tool management number input item 21. When moved, the tool file is searched for tools that can be used for that type of machining, including the set tool, and these are searched for with the main data of those tools (for example, nose radius R for tools for outer diameter machining). The angle is displayed together with the list.

Further, when the cursor 1 is moved to the input item 21 of the tool management number, the tool list is displayed in a window, and the tools displayed in the window are used for machining of the set type. Only the tools that can be used are displayed, and the most versatile tool is displayed in the selected state (highlighted or highlighted).

[0019]

When registering a machining program consisting of a plurality of processes, even when the program becomes long and the input item 2 column of the T code of the used process no longer exists on the screen,
When the cursor 1 is moved to the T-code input item 2, the T-codes 6 that have already been used in the machining program are displayed in a list, so that the unused T-codes can be seen at a glance. Therefore, the operator can easily determine at which position of the turret the tool to be used in the process currently being input should be attached to perform machining.

In this case, the tool-assigned T
If the code 6 is searched and displayed by scanning the input item 2 column of the T code of the program, when the data is rewritten, the change in the data is immediately reflected in the display data, and the input data is stored in the memory. There is no need to transfer to and create a table.

When the cursor is moved to the surface roughness input item 11, the surface roughness triangular symbol 14 and the maximum surface roughness Rmax corresponding to the triangular symbol are displayed in a list, so that the set surface roughness is maximum. The surface roughness can be easily evaluated, and even when the maximum surface roughness does not match, it is possible to easily determine which surface roughness symbol should be changed. By displaying the maximum tool feed amount or feed rate at the same time as this surface roughness, it is possible to easily understand how the machining time changes when the surface roughness is changed. .

When the cursor 1 is moved to the input item 21 of the tool management number, a list of the tool numbers 24 that can be used for machining of the process and the necessary tool data 25 are displayed in a list. When confirming what kind of tool is automatically set and changing the tool,
Since it is possible to judge and select from which list tool (window) 23 which tool is the most suitable tool, it is easy to confirm the tool to be used and to change the tool to be used easily and without error. be able to.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A drawing showing an embodiment of the present invention will be described below. FIG. 1 shows a display screen 3 when the cursor 1 on the display screen moves to the input item 2 of the T code.
Is shown. As shown in FIG. 1, a window 4 is opened on the screen 3, and the window 4 displays the tool mounting position number 5 of the turret and the set T code 6 in the form of a list. In the example of FIG. 1, there are 16 tool mounting positions for the turret, and two machining units each have an independent turret.
It is displayed that the tool has already been registered at the position. The display data of the tool registered position is obtained by scanning the T code input item 2 of the machining program being created from the beginning.

In FIG. 2, the cursor 1 is an input item 11 for surface roughness.
7 shows the display screen 3 when moved to. As shown in the figure, window 13 is opened on screen 3,
In this window 13, ten-step surface roughness symbols 14 and the values of the maximum surface roughness Rmax and the average surface roughness Ra corresponding to each of them are listed. Further, the table of FIG. 2 is provided with an item 15 indicating the tool feed amount, and the tool feed amount 15 calculated by the following formula Rmax = 125 × (tool feed amount) ² / nose R of the tool edge can be displayed. It is like this.

Among the data displayed in the window 13, the relationship between the surface roughness symbol 14 and Rmax and Ra is registered in advance as a table, and the display data of the tool feed amount 15 is displayed when the tool is designated. The nose R of the tool is used to calculate and display the above-mentioned formula. When data is already input in the surface roughness input item 11, the corresponding line 16 of the list is highlighted or highlighted so that the data can be easily confirmed.

FIG. 3 shows the first embodiment of the display screen 3 when the cursor 1 is moved to the input item 21 of the tool management number. A window 23 is opened, and the window 23 is opened at this step. A list of available tool management numbers 24 and their tool data 25 is displayed. In selecting the tool to be displayed, the type of processing is determined from the values input in the process field and the processing area field, and the standard tool preset as the most versatile tool is selected for each processing type. In the window 23, tools that can be used for machining of the same type as the automatically input tools are searched and displayed from the tool file 26 in which data as shown in FIG. 4 is registered, and various types of tools registered in the tool file 26 are displayed. Only the data designated in advance is displayed from the tool data 25 of. The tool data displayed is the nose R for turning tools.
Differences between the displayed tools should be limited to the data necessary for tool selection, such as cutting edges and cutting edges, and not display data that is common to all tools or data that is not related to tool selection. Should be easily visible.

In FIG. 5, the cursor 1 is the input item 2 of the management number.
2 shows a second embodiment of the display screen 3 when moved to 1. In this second embodiment, the tool management number is not automatically set and the cursor 1 is an input item of the tool management number. 21 is opened, a window 23 displaying the same contents as in FIG. 3 is opened, a tool preset as a standard tool is highlighted, and when the operator moves the cursor 1 without selecting it, this standard The tool number is set in the management number input item 21.

[0028]

According to the present invention described above, when the cursor moves to an input item of surface roughness, tool management number and T code, the operator can input data that can be input or changed. A list is displayed together with the data that will be used to determine the value.
The effect is that setting and changing can be easily and definitely performed.

[Brief description of drawings]

FIG. 1 is a diagram showing a T code setting screen.

FIG. 2 is a diagram showing a surface roughness setting screen.

FIG. 3 is a diagram showing a first embodiment of a tool management number setting screen.

FIG. 4 is an explanatory diagram showing an example of a tool file.

FIG. 5 is a diagram showing a second embodiment of a tool management number setting screen.

FIG. 6 is a diagram showing a display screen at the time of conventional data setting.

[Explanation of symbols]

 2 Input items of T code 4 Window 11 Input items of surface roughness 13 Window 14 Surface roughness symbol 21 Input items of tool control number 23 Window

Claims (6)

[Claims] 1. Input data display of an interactive numerical control device when setting a machining program consisting of a plurality of steps by interactive processing by inputting predetermined data in a data input item displayed on a display screen (3). In the method, when the cursor (1) on the display screen (3) moves to the input item (2) of the tool mounting position on the turret, etc., open the window (4) on the display screen (3) and enter in that window. The method for displaying input data of an interactive numerical control device, characterized by displaying a list of tool mounting positions (6) in which tools have already been set and tool mounting positions in which no tools have been set in the program. 2. The tool attachment position (6) list display is characterized in that display data is extracted and displayed by scanning the input item (2) of the tool attachment position of the program being input. The input data display method according to claim 1. 3. A method for displaying input data of an interactive numerical control device when a series of machining programs is set by interactive processing by inputting predetermined data in a data input item displayed on a display screen (3). ,
When the cursor (1) on the display screen (3) moves to the surface roughness input item (11), the window (13) is opened and the triangular mark (14) indicating the surface roughness and the maximum surface are registered. Roughness (Rma
An input data display method for an interactive numerical control device, characterized in that a list showing the relationship with x) is displayed in the window. 4. The table has a tool feed amount or tool feed speed display field (15), and when the tool to be used is specified, each maximum surface roughness displayed from the data of the cutting edge radius of the tool. 4. The input data display method for an interactive numerical control device according to claim 3, wherein the maximum tool feed amount or the maximum tool feed speed for achieving the desired value is calculated and displayed. 5. A method for displaying input data of an interactive numerical control device when a series of machining programs is set by interactive processing by inputting predetermined data in a data input item displayed on a display screen (3). ,
When the cursor (1) on the display screen (3) moves to the input item (21) of the management number (registration number) of the tool used,
A tool file (26) is searched based on the setting data of other items whose values have already been set, and a tool that can be used for machining in the relevant process is extracted, and the control number of the extracted tool (24) And a tool data (25) are displayed in a list, and the most versatile tool among the listed tools is set in a selected state. An input data display method for an interactive numerical control device. 6. A method for displaying input data of an interactive numerical control device when a series of machining programs are set by interactive processing by inputting predetermined data in a data input item displayed on a display screen (3). ,
When the specified machining type is input, the standard tool number most suitable for performing the machining is automatically set in the tool management number input item (21), and the cursor on the display screen (3) is set.
When (1) moves to the entry field of the tool management number, the tool file (26) is searched for a tool that can perform the same type of machining as the automatically set tool, and the tool number (24) A method for displaying input data of an interactive numerical control device, characterized by displaying a list of defined tool data (25).