JPH06161528A - Generationg method and device for nc data - Google Patents

Abstract

PURPOSE:To make possible the automatic preparation of NC data including a connection part by an NC data generator by performing the instruction of a position where the connection part is provided on graphic data by a worker at a point of time when graphic data is prepared and registering the data of the connection part in graphic data. CONSTITUTION:In order to produce a plate product of a fixed shape, a worker 16 positioning in front of a CAD/CAM 1 to be an NC data generator operates the CAD/CAM 1, prepares drawing data 5 and writes an instruction not so as to omit a work product from a metal plate in the drawing data 5 by providing a joint part for the metal plate of the outer peripheral part of the work product, and the graphic data is made into data by the CAD/CAM 1 and is recorded in a data base 9. The CAD/CAM 1 performs the application of tools to be used, tool data recording the coordinate of a working position and a working length, etc., is prepared by the CAD/CAM 1 and NC data 7 is generated by converting this tool data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an NC data generating method and an NC data generating device used in a punch press, a laser processing machine or the like, and more particularly to NC data for generating NC data to which joint processing data is added. And a NC data generating device.

[0002]

2. Description of the Related Art Conventionally, an operator has to provide a connecting portion on the outer peripheral portion of a processed product such as a plate-shaped sheet metal so that the processed product does not drop from the plate material. The (machining length) is calculated, and the coordinate data indicating the machining position in the NC data for controlling the operation of the machine tool is edited.

Further, in order to add the data of the connecting portion by the method of applying the tool based on the graphic data created by the automatic programming device to generate the NC data,
The operator gives an instruction for the coordinate position of the joint to the generated NC data.

[0004]

However, since the operator must calculate the coordinate position to be machined, the machined length, etc. based on the machined shape of the sheet metal or the like, a considerable labor is required for calculation and prevention of calculation errors. Needed. Further, if the tool data generated by applying the tool to the graphic data is once deleted and the tool is fitted again, the instruction of the connecting portion must be given again. Further, when the NC data used for the punch press and the NC data used for the laser processing machine are generated from the graphic data created by the automatic programming device, the machining of the NC data generation device connected to each processing machine is performed. It was necessary to give instructions for the joints according to the instructions.

Therefore, in order to solve the above problems, an object of the present invention is to allow an NC data generation device to automatically generate NC data including a connecting portion by an operator instructing the connecting portion to the graphic data. By making it possible to generate NC data corresponding to the machine tool used, it is possible to improve the work efficiency for generating NC data.

[0006]

In order to achieve this object, the present invention provides an NC data generating method that includes, in graphic data, data for providing a connecting portion connected to a plate material on the outer peripheral portion of a processed product. At the time of creating the, the operator gives an instruction of the position where the connecting portion is provided in the graphic data,
After registering the data of the connecting portion in the graphic data,
Set the machining setup conditions such as the machine tool and machining method, create the tool data that defines the machining trajectory from the machining start position and end position of the tool based on the figure data and machining setup conditions, and include this tool data. This is to generate NC data.

Further, the NC including the data for providing the connecting portion for connecting the plate material to the outer peripheral portion of the processed product is included in the graphic data.
In an NC data generating device for generating data,
A graphic operation unit for controlling an instruction for providing a connecting portion to the graphic data of the plate material to be processed by the worker, and a graphic data for generating the graphic data by adding the data of the connecting portion instructed by the graphic operation unit. In the case where the graphic data generation unit and the graphic data in which the graphic data generation unit is provided with a connecting portion are included, the machining start position of the tool is determined from the graphic data and the machining setup conditions such as the machine tool and machining method to be used. And a tool data generation unit for generating tool data in which a machining locus is determined from the end position.

[0008]

According to the above method and configuration, in the NC data generating method including the data for providing the connecting portion for connecting the plate material to the outer peripheral portion of the processed product in the NC data generating method, the operator does not After instructing the position to provide the joint to the data and registering the data of the joint in the graphic data, set the machining setup conditions such as the machine tool to be used and the machining method, and set the graphic data and the machining setup. NC data including the tool data is created by defining the machining path from the machining start position and end position of the tool based on the conditions.
Generate data.

[0009]

Embodiments of the present invention will be described below with reference to FIGS.
It will be explained based on.

FIG. 1 is an explanatory diagram showing a connection relationship between an NC data generating device (hereinafter referred to as CAD / CAM) 1 to which the present invention is applied and each device connected thereto. CAD / CA
M1 is an automatic programming device (hereinafter referred to as CAD) that creates a product drawing for processing a sheet metal which is a plate material.
Function to process the graphic data 5 as shown in FIG. 3, for example, to determine the processing order and the plate material conveyance path, and to set the position of the joint (hereinafter referred to as the joint) to the graphic data 5. The data is stored and the NC data 7 is generated. The CAD / CAM 1 is provided with a database 9 for accumulating information necessary for plate processing, and a turret punch press 11 which is a machine tool for punching or a laser processing machine 13 for laser processing plate by laser heat.
Is connected to the NC device 15 for controlling the operation of each drive member such as. The NC device 15 is connected to the turret punch press 11 or the laser processing machine 13. The respective devices 1, 11, 13, 15 are connected via a communication line. The line indicates a line for direct NC (DNC). These communication lines can be appropriately replaced with a recording medium such as an IC card, a floppy disk or a paper tape.

In the above structure, in order to make a sheet metal product having a certain shape, a worker 16 located in front of the CAD / CAM 1 operates the CAD / CAM 1 to create a product drawing (figure data) 5 and process it. Write an instruction (hereinafter referred to as a joint instruction) for providing a joint portion for the plate material on the outer periphery of the product so that the processed product does not drop from the plate material, and convert the graphic data into data by CAD / CAM1. And record it in the database 9. Then, the CAD / CAM 1 applies the tool to the machining position of the tool to be used based on the graphic data 5, and
D / CAM1 creates tool data that records the machining position coordinates, machining length, etc., and converts this tool data to generate N
C data 7 is generated. Then, based on this NC data 7, the turret punch press 11 or the laser processing machine 1
The desired product is created by controlling the operation of No. 3.

Hereinafter, the procedure for creating the NC data 7 including the data (hereinafter referred to as joint data) 17 for creating the joint portion by the CAD / CAM 1 will be described with reference to FIG.
~ It demonstrates using FIG.

As shown in FIG. 2, in step 301, C
The automatic programming function of the AD / CAM 1 is used to create the graphic data 5 that is the product shape, and in step 302, the created graphic data 5 is confirmed. Graphic data 5
If it is not correct, step 301 is repeated. If it is correct figure data 5, the process proceeds to step 303. In step 303, the worker 16 gives an instruction to the graphic data 5 as to the position at which the joint portion is to be provided.
Now, check the joint instructions. If the joint instruction is not correctly given, the process proceeds to step 303 to correct the incorrect joint instruction. If the joint instruction is correctly given, the process proceeds to step 305.

Here, as shown in FIG. 3, CAD / CA
The handling of the graphic data 5 when the joint portion is instructed in M1 will be described. First, graphic data 5
Is divided into a plurality of line segment elements that form the outer shape of the product figure for which the joint portion is designated. The line segment element is composed of two points located at both ends of the line segment element and a line segment connecting the two points. A number is added to each line segment, and numbers from to to are added in the clockwise direction. Also, the worker 1
When 6 instructs the joint part, at the point owned by each line segment element, the joint mark "▽" is added to the graphic data 5 when the joint part is necessary, and the joint part is jointed when the joint part is unnecessary. Marks shall not be given. In FIG. 3, the joint mark is provided at the right end point of the line segment, and the joint mark is provided at the upper end point and the lower end point of the line segment. Symbols for identification are added to the joint marks, and symbols a, b, c ... f are added in the clockwise direction.

The data structure of the graphic data 5 including the joint data 17 to which the joint mark is added will be described with reference to FIGS. 4, 5 and 6. Figure 4 is CAD / CA
Shows the data structure of the product graphic created using M1,
The data structure is a general TREE structure. In the figure, the layer No. 0 shown by A shows the graphic element data for drawing a line segment, a point, etc. on the display of CAD / CAM 1, and the layer No. 1 shown by B is the data showing the attribute for the graphic element. And the data item indicated by C indicates the attributes of the joint,
Hierarchy NO.2 indicated by D indicates an element which is a collection of graphic elements and is a closed figure, and hierarchy NO.7 indicated by E indicates one part of a product, that is, a part, which is composed of the collection of closed figures. ing. Therefore, the joint data 17 is a general term for A, B and C.

The joint attribute C will be described below with reference to FIG. 5, and the data structure of the graphic data 5 to which the joint mark is added will be described with reference to FIG.

The joint attribute has two joint attributes on the start point side and the end point side at both ends of the line segment. The joint is classified into four modes depending on the connection state of the plate material and the product at each point. That is, when no joint portion is provided at any point on the line segment, when joint portions are provided at both ends of the line segment (hereinafter referred to as both-sided joints), and at either end of the line segment. In the case where a joint portion is provided only in (hereinafter, referred to as a one-sided joint), the one-sided joint is further classified into a target type and a non-target type depending on the presence or absence of the joint width. Here, the data conversion of the above-mentioned four aspects of the joint portion is shown below.

When no joint part is provided: 0 Both-side joint: 1 One-sided joint (target): 2 One-sided joint (non-target): 3

Based on the data conversion of the joint portion as described above, the graphic data 9a with the joint mark shown in FIG. 3 has the data structure shown in FIG. For example, in FIG.
The line segment and the joint mark a shown in are classified into a straight line and a joint mark in the graphic element data of the hierarchy No. 0, and the data of the start point side of the joint attribute of the hierarchy No. 1 is “0 because there is no indication of the joint mark. The data on the end point side is “3” because there is an indication of the joint mark and it is an asymmetric type of one side joint. Hereinafter, the joint portion is converted into data in the same manner. The graphic data 9a including the data of these connecting portions is the database 9
Recorded in.

As shown in FIG. 7, the database 9 includes graphic data 9a including the data of the connecting portion, machining setup information 9b and tool data 9 which are machining setup conditions described later.
c is recorded.

Returning to the flowchart of FIG. 2 again, in step 305, a machining setup condition which is a condition for machining the plate material is set. The setting contents are selection of processing method (press processing, laser processing, compound processing), machine to be used,
The materials used (material, plate thickness), material dimensions, etc. Since the processing method can be selected, each NC data can be generated by CAD / CAM1 even when using a composite processing machine including a turret punch press and a laser processing machine.

In step 307, the conditions created from the machining setup conditions and the graphic data 5 created by CAD1
Therefore, CAD / CAM1 automatically fits the tool. By fitting the tool, the hierarchy No. 1 of C in Fig. 6
Data of the starting position and the ending point of the searched data and the data of the joint attribute are added, and the joint width m is added as shown in FIG. The tool data 9c including is generated. The generated tool data 9c is recorded in the database 9. It should be noted that the fitting of the tool and the like are displayed on a display (not shown) of the CAD / CAM 1.

In step 308, the tool data is confirmed by fitting the tool. If the tool data 9c is deficient, steps 307 and thereafter are repeated.

In step 309, the tool data 9c recorded in the database 9 is converted into NC data 7 and NC
Data 7 is generated.

A CA including the above invention will be described below with reference to FIG.
A block diagram of the D / CAM 1 will be described.

The CAD / CAM 1 includes a graphic operation section 19 for creating graphic data 5 by operating an input means such as a keyboard or a mouse for creating a product graphic using a plate material such as a metal plate, and the graphic data. 5 and a database access unit 21 that collects commands for reading and writing data from the database 5 for storing the tool data 9c. The graphic operation unit 19 operates the input means to operate the graphic operation unit 1.
It is connected to a graphic data generation unit 23 for converting the graphic created in 9 as data. The graphic data generation unit 23 records the generated graphic data 5 in the database 9 via the database access unit 21. The database access unit 21 uses the graphic data 5 instructed to perform the joint processing and the graphic data 9 assigned to the tool.
It is connected to the display control unit 25 for displaying a.

The graphic operation unit 19 is connected to a control unit 27 that processes and controls data. The control unit 27 is connected to a machining operation unit 29 for fitting a tool, and is connected to a tool data generation unit 31 for generating tool data 9c for the graphic data 5 recorded in the database 9. The tool data generation unit 31 is connected to a mold selection unit 33 for selecting a mold used for machining.

The database access unit 21 is connected to an NC data generating unit 35 for generating the NC data 9 including the graphic data 5 and the joint data.
Data 7 is N for machine tools such as turret punch press 11
It is transferred to the C device 15 and its operation is controlled.

In the above structure, in order to generate the NC data 7, the graphic operation unit 19 and the graphic data generating unit 23 create the graphic data 5 which is the basis of the NC data 7, and the graphic data 5 is a database access unit. 21
Are recorded in the database 9 via Then, when the instruction of the joint portion is added through the graphic operation unit 19 by the input means, the tool is fitted in the machining operation unit 29, and the joint width is added in the tool data generating unit 31 to add the machining position and the machining length. Stored in the database 9 via the database access unit 21,
The graphic data 5 and the like are displayed on the display via the display control unit 25. The NC data generator 35 uses the database 9
The NC data 7 is generated by taking out the tool data stored in.

From the above, when the plate material is pressed or laser-processed, the processing data of the joint processing is CAD /
Since it can be taken into the graphic data 5 by the CAM 1, it is not necessary for the operator 16 to edit the NC data 7.

By the way, in the above embodiment, the CAD and the CAM are used as one device, but it is also possible to use the CAD and the CAM as separate devices. At this time, the graphic data created by CAD can be once recorded on a recording medium such as a floppy disk and then reproduced by the CAM, or the graphic data can be transferred to the CAM by communication means.

The present invention is not limited to the above-described embodiments, but the present invention can be implemented in modes other than the above-mentioned embodiments.

[0033]

As described above, according to the present invention, at the time of creating graphic data by the NC data generator, the operator gives an instruction to the position where the connecting portion is to be provided in advance, and the data of the connecting portion is changed. After registering in the graphic data and setting the machining setup conditions such as the machine tool and machining method used for plate processing, the NC data generator automatically fits the tool based on the machining setup conditions and the graphic data. , NC data is generated by converting the tool data in which the machining position and machining length of the tool are calculated.

Therefore, the update time of NC data can be shortened and the work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a configuration diagram for connecting to a CAD / CAM 1 equipped with the present invention.

FIG. 2 is a flowchart showing a procedure for creating NC data.

FIG. 3 is an explanatory diagram showing an example of graphic data.

FIG. 4 is a data structure diagram of graphic data.

FIG. 5 is an explanatory diagram showing joint attributes.

FIG. 6 is a data structure diagram of graphic data to which joint processing data is added.

FIG. 7 is an explanatory diagram showing recorded contents of a database.

FIG. 8 is an explanatory diagram of graphic data in which a mold is fitted.

FIG. 9 is a block diagram of CAD / CAM1.

[Explanation of symbols]

 1 CAD / CAM (NC data generation device) 5 Graphic data 7 NC data 9a Graphic data including data of a connecting portion 9b Processing setup conditions 9c Tool data 11 Turret punch press (machine tool) 13 Laser processing machine (machine tool) 16 Worker 19 Graphic operation unit 23 Graphic data generation unit 31 Tool data generation unit

Claims (2)

[Claims] 1. An NC data generating method including graphic data including data for providing a connecting portion for connecting a plate material to an outer peripheral portion of a processed product, wherein an operator provides a connecting portion for the graphic data at the time of creating the graphic data. Give a position indication,
After registering the data of the connecting portion in the graphic data,
Set the machining setup conditions such as the machine tool and machining method, create the tool data that defines the machining trajectory from the machining start position and end position of the tool based on the figure data and machining setup conditions, and include this tool data. A method for creating NC data, characterized in that NC data is created. 2. An NC data generating device for generating NC data, which includes data for providing a connecting portion for connecting a plate material to an outer peripheral portion of a processed product in the graphic data, in the graphic data of the plate material to be processed by an operator. A graphic operation unit for controlling an instruction for providing a connecting portion, a graphic data generating unit for generating graphic data in which the data of the connecting portion designated by the graphic operating unit is added to the graphic data, and a graphic data generating unit. Tool data in which a machining path is determined from the machining start position and the end position of the tool based on the machining setup conditions such as the machine tool and machining method to be used when the graphic data including the connecting portion is included. An NC data generation device, comprising: a tool data generation unit for generating the.