JPH07168612A - Boring program generating device - Google Patents

Abstract

PURPOSE:To generate a boring program which matches an optional NC machine tool extremely easily by generating the boring program of the NC machine tool by putting information on sorted hole figures, a template, and a boring microfile together. CONSTITUTION:Drawing data which are generated and edited by a file generating and editing process part 11 are stored in a drawing data file storage part 3. A sorting process part 13 specifies hole figures to be machined in the stored drawing data file individually, or according to a position range or hole diameter range, and determines the order of the machining in the specified direction. Further, the sorting process part 13 sets a layer in a hole sorted information file storage part 4 and stores the sorted hole figures in this layer. A program conversion part 14 generates the NC machining program on the basis of the information on the sorted hole flgures, the template file, and boring microfile, and stores it in a machining program file storage part 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention extracts a hole figure to be machined from drawing data including a hole figure created by a CAD system and creates a machining program for an NC (Numerical Control) machine on the CAD. The present invention relates to a hole machining program generator.

[0002]

2. Description of the Related Art Conventionally, when a machining program for an NC machining machine is generated from drawing data created by a CAD system, the machining program is created by using a dedicated automatic NC programming device or the like provided in a pair with the NC machining machine. It is common to create However, in the conventional hole drilling program generation method using the automatic NC programming device, the NC
Since it is necessary to equip each processing machine with an automatic programming device, there are problems that the total cost of the system is increased and that the work of creating a program is troublesome. For this reason, recently, a function of creating an NC machining program is required on a CAD system for creating a drawing to be machined.

[0003]

However, when an NC machining program is created on a CAD system, the parameters unique to the NC machining machine, such as the coordinate system setting values and the home position, are different for each NC machining machine. There is a problem that it is difficult to perform a single conversion process.

The present invention has been made to solve such a problem, and is a hole drilling program capable of extremely easily generating a hole drilling program suitable for an arbitrary NC machining machine on a CAD system. An object is to provide a generator.

[0005]

A hole drilling program generating apparatus according to the present invention is a drawing data creating / editing means for creating / editing a drawing data file including a hole figure, and a drawing created by the drawing data creating / editing means. A drawing data file storage means for storing the data file, a sort processing means for extracting a specified hole figure from the drawing data file stored in the drawing data file storage means, and performing a sorting process in a specified direction, A hole sort information storage means for storing information on hole figures sorted by this sort processing means, and a template file describing fixed parameters specific to the NC processing machine described in a program for controlling the NC processing machine. For storing a template file storing means and a hole drilling procedure describing a hole drilling procedure specifying one or more tools Hole machining macro file storage means for storing a black file, information on the sorted hole figures stored in the hole sort information storage means, a template file stored in the template file storage means, and the hole machining macro file storage Machining program converting means for synthesizing the hole machining macro files stored in the means to generate a machining program for the NC machining machine.

[0006]

According to the present invention, after the drawing data file including the hole figure is created and edited on the CAD, the specified hole figure is extracted from the created drawing data file,
Sorted in the specified direction. Then, the information of the sorted hole figures, the template file in which the fixed parameters peculiar to the NC processing machine to be used are described, and the hole processing macro file in which the hole processing procedure for each hole is described, The machining program conversion means performs synthesis processing to generate a machining program for the NC processing machine. Further, in the present invention, the processed hole figure information and the hole machining macro file can be commonly used even if different NC machining machines are used, and one template file is created for each NC machining machine. It has the advantage that it can be stored.

According to the present invention, all machining programs are C
Since it is generated by the operation on AD, both the person in charge of designing and the person in charge of processing can perform the operation on the same system, and the link between the two can be satisfactorily achieved. Also,
The designer can also generate a machining program as intended by a simple operation. Moreover, the overall cost of the system can be reduced since no special NC programming device is required.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows an NC according to an embodiment of the present invention.
It is a functional block diagram which shows the structure of the CAD system provided with the processing program generation function. This system includes an input unit 1, a CAD processing unit 2, a drawing data file storage unit 3, a hole sort information file storage unit 4, a template file storage unit 5, a hole machining macro file storage unit 6, a machining program file storage unit 7, and a display. A section 8 is provided.

The input unit 1 is an input device such as a mouse and a keyboard, and designates a specific location such as a menu, an icon, drawing information and the like displayed on the display unit 8 or a specific range.
Used when inputting necessary image data and character data. The CAD processing unit 2 is a file creation / editing processing unit 1.
1 and NC processing unit 12.

The file creating / editing processing section 11 is a drawing data creating / editing means for creating / editing a drawing data file including a hole figure, and at the same time, a hole sort information file, a template file, and a hole machining macro file which will be described later. It is also a means for creating and editing a machining program file. Created by this file creation / edit processing unit 11.
The edited drawing data file is stored in the drawing data file storage unit 3.

The sort processing unit 13 designates the hole figure to be machined individually or by the position range or the hole diameter range from the drawing data file stored in the drawing data file storage unit 3, and in the specified direction. Determine the processing order. Further, the sort processing unit 13 sets a layer in the hole sort information file storage unit 4 and stores the hole graphic subjected to the sort processing in this layer. The program conversion unit 14 determines the NC based on the sorted hole figure information and the template file and hole machining macro file described later.
Generate a machining program. The generated machining program is stored in the machining program file storage unit 7.

Next, the operation of the present system thus constructed will be described. FIG. 2 is a flowchart for generating a machining program of this system. First, a drawing data file including a hole figure to be processed is read (S
1). FIG. 3 is a diagram showing an example of the read drawing data. Each hole figure is composed of information such as position coordinates, hole diameter, depth, processing method (cutting, tapping, reamer, etc.).

Next, the sort processing unit 13 is activated to specify a hole figure to be included in one machining unit, and set parameters for executing the sort processing (S2). This setting process is performed, for example, by setting various items in the dialog menu as shown in FIG. For example, when processing a hole figure with a diameter of 10 to 14 mm,
Set "10" and "14" in the "diameter range". In addition, the hole figure to be processed may be selected by designating individual hole figures with the cursor of the mouse, designating the range with the extend box, or combining these. "Sort method"
As shown in FIG. 5, X-axis ascending order, X-axis ascending order, X-axis descending order,
One of the sorting directions for efficient machining is designated from the Y-axis ascending order, the Y-axis ascending order, and the Y-axis descending order. As shown in FIG. 6, the “search band” is a width for searching a hole figure in one movement in the X-axis direction or the Y-axis direction.

When the above settings are completed, sort processing is executed (S3). For example, as shown in FIG. 4, when the diameter range is set to 12 to 12 mm, the sorting method is set to the ascending / descending order of the X-axis, and the search band is set to 40 mm, and sorting is performed,
As shown in FIG. 6, 12 mm hole figures each having a width of 40 mm are extracted from the Y coordinate with the smallest Y coordinate value, the X coordinate value is in ascending order in the odd-numbered search bands, and the X coordinate value is large in the even-numbered search bands. Hole figures are sequentially extracted. As a result, six "M12" hole figures are extracted in a predetermined order as shown in FIG. 6, and machining is performed in this order. The result of sorting is confirmed by outputting a coordinate value list as shown in FIG.

One machining unit selected in this way is 1
It is stored in one NC layer (S4). At this time, NC
As the layer name or its comment name, "M12D2
A numerical value indicating the diameter of the hole is included, such as "0". Further, the diameter range of the sort target may be automatically stored as a comment of the NC layer when selecting the sort element. , Other hole figures "10 drill", "14"
The sorting results are also stored in different layers for H7 "and the like (S5). In this way, it is generally desirable to use hole figures of the same diameter and the same type as one machining unit, but for all hole figures In the case where a center drill having the same diameter is to be used for machining in advance, only this machining is used as one machining unit and all hole figures are sorted.

Next, when the program conversion unit 14 is activated,
A dialog menu for setting parameters for program conversion as shown in FIG. 8 is displayed, and conversion parameters are set. First, the NC layer is selected (S6). As the NC layer, the layer name in which the hole figure to be processed is stored is specified.

Next, a template file is designated (S7). This template file is a file created based on the G code as shown in FIG.
C It has a part in which a unique parameter for each machine tool is described and a part in which various commands and machining position data are inserted by a program conversion operation described later. #Start to #: are the portions described at the beginning of the machining program, in which the cancel code at the start and the coordinate system setting command of the work are described. #Tool to #: is a part in which a program related to tool change is described. Further, #end to #: are the portions described at the end of the machining program, and the origin return program and the end code are described. The template file is created in advance by using the file creation / edit processing unit 11.

Next, a hole machining macro file is designated (S8). That is, for example, the procedure for processing the M12 screw hole is as follows. (1) Grinding with a 2 mm center drill (2) Pilot hole machining with a 5 mm drill (3) Pilot hole machining with a 10.3 mm drill (4) Chamfering machining with a 16 mm chamfering cutter (5) Screw machining with an M12 tap

If the hole drilling macro file for realizing such drilling is not created in advance, the hole drilling macro file is created by the dialog menu for editing the hole drilling macro as shown in FIG. The hole machining macro file is configured by arbitrarily combining a fixed cycle command that specifies a machining method for each tool to be used and a free command other than the fixed cycle command such as a tool movement command or a subroutine read. Each fixed cycle command includes a tool number, a tool name, a tool length correction value, a fixed cycle G code, a hole bottom point Z, a reference point R, a pitch P, a cut amount Q, a feed rate F, a rotation speed S, and a return point position. It is set by ON / OFF of tool exchange. The input frames for setting the fixed cycle parameters Z, R, P, Q, F, S selectively display only the necessary items according to the selected G code. The output parameter is generated by connecting the input fixed cycle parameters. The macro name includes a numerical value indicating the diameter of the hole to be processed, such as "M12".

When selecting the prepared hole drilling macro file, as shown in FIG. 11, the hole drilling macro list is displayed and the required macro file is selected from this list. At this time, in order to prevent an enormous amount of macro files from being displayed, display only the hole figure macro file for processing holes with the smallest hole diameter or less among the hole diameters registered in the specified layer. By reducing the display target, the selection operation becomes easy. The reason for excluding the hole machining macro file that exceeds the minimum hole diameter is that, when multiple holes are used as one machining unit, usually the minimum hole diameter is within the machinable range. .

As a method of selecting the hole machining macro file to be displayed, there are a method of referring to the layer comment of the designated layer and a method of extracting all the hole diameters of the hole figures registered in the designated layer and referring to the minimum diameter of them. Two methods are possible. In the former case, the layer comment is, for example, "M1.
Since it is sometimes described as 2D10 ", the numerical value" 12 "described first from the beginning of the comment is recognized as the hole diameter. The former need not refer to all hole figures. , There is an advantage that high-speed processing is possible, and the latter has an advantage that it is not necessary to describe a layer comment.In addition, as shown in FIG. ), The layer comment is first referred to (S12), and the minimum hole diameter is searched only when the comment is not described (S13,
The operation of S14) may be performed.

Among the menus shown in FIG. 8, the NC layer,
When the template file and the hole machining macro file are designated, the output file name is set, for example, "M12". In the comment field, a comment such as "0002 (M12)" suitable for the name of the machining program is entered.

When the setting of various parameters is completed, a program creating process is executed and a machining program is created (S9). The outline of this conversion operation is shown in FIG. This conversion process is basically performed by combining the template file, the hole machining macro file, and the hole sort information.
It is realized by generating a code program.
FIG. 14 is a flowchart of this conversion process, and FIG.
5 and FIG. 16 show the conversion result.

First, a work area for creating a machining program is secured (S21). Next, the comment text of the hole machining macro file is output to the work area as the program number and program name (S22). If no comment text is set, the program number is set to "0000", followed by the hole machining macro name, for example, "000".
0 (M12) ". Next, the preprocessing program between the template files #start and #: is output (S23).

Next, it is judged whether or not the cycle is a fixed cycle, one line at a time, from the first line to the last line of the hole machining macro file (S24, S25, S26). It is determined whether the output line of the macro file is set to tool change ON (S2
7). If it is set to ON, the tool change program between #tool and #: in the template file is output, and the variable $ TOOL in the tool change program is output.
The tool number, tool name, rotation speed, and tool length correction value of the corresponding output line are inserted into $ TNAME, $ SPEED, and $ LOFF, respectively (S28). Then return point, G code,
Fixed cycle rows are output in the order of output parameters (S2
9), the coordinate values of the designated NC layer are sequentially output (S3).
0).

On the other hand, the output line of the hole machining macro file is
In cases other than the fixed cycle such as tool movement designation and subroutine reading, that line is output and the process proceeds to the determination of the next line (S26, S33). When the conversion is completed for all the lines, the post-processing program between #end and #: of the template file is output (S31, S32, S3).
4). As a result, the conversion program as shown in FIGS. 15 and 16 is generated. This machining program is stored in the machining program file storage unit 7, and NC
It is appropriately supplied to the processing machine 15.

[0027]

As described above, according to the present invention, since the machining programs are all generated by the operation on the CAD, both the designer and the operator can operate on the same system. In addition to the good link between the two, the designer can also generate a machining program as intended by a simple operation. Moreover, the overall cost of the system can be reduced since no special NC programming device is required.

[Brief description of drawings]

FIG. 1 is a functional block diagram of a CAD system having an NC machining program generation function according to an embodiment of the present invention.

FIG. 2 is a flowchart of a machining program generation in the system.

FIG. 3 is a diagram showing an example of a drawing of the processing target.

FIG. 4 is a diagram showing the sort parameter setting menu.

FIG. 5 is a diagram showing an example of the same sorting method.

FIG. 6 is a diagram showing the sorting result.

FIG. 7 is a diagram showing a coordinate value list of the same sorting result.

FIG. 8 is a diagram showing a parameter setting menu for program conversion.

FIG. 9 is a diagram showing an example of the template file.

FIG. 10 is a view showing a menu for editing the same hole machining macro file.

FIG. 11 is a view showing a hole machining macro selection menu.

FIG. 12 is a flowchart of displaying a hole machining macro selection menu.

FIG. 13 is a diagram for explaining the outline of the program conversion processing.

FIG. 14 is a flowchart of the same program conversion process.

FIG. 15 is a diagram showing an example of a hole drilling program created by the conversion process.

16 is a diagram showing a continuation of the program of FIG.

[Explanation of symbols]

1 ... Input unit, 2 ... CAD processing unit, 3 ... Drawing data file storage unit, 4 ... Hole sort information file storage unit, 5 ... Template file storage unit, 6 ... Hole machining macro file storage unit, 7 ... Machining program file storage Parts, 8 ... display part, 11 ... file creation / edit processing part, 12 ... NC processing part, 13 ... sort processing part, 14 ... program conversion part, 1
5 ... NC processing machine.

Claims (1)

[Claims] 1. A drawing data creation / editing means for creating / editing a drawing data file including a hole figure, a drawing data file storage means for storing the drawing data file created by this drawing data creation / editing means, and this drawing data Sort processing means for extracting a specified hole figure from the drawing data file stored in the file storage means and performing a sorting process in the specified direction, and information of the hole figure sorted by this sort processing means is stored. Hole sorting information storage means, and the NC described in the program for controlling the NC processing machine
Template file storage means for storing a template file in which fixed parameters unique to a processing machine are stored, and hole drilling macro file storage means for storing a drilling macro file in which a drilling procedure specifying one or more tools is described And the hole processing information stored in the hole sorting information storage means, the template file stored in the template file storage means, and the hole processing macro file stored in the hole processing macro file storage means are combined. And a machining program conversion means for generating a machining program for the NC machining machine.