JPH07319521A - Digitize data processor - Google Patents

Abstract

PURPOSE:To easily prepare an NC program, for which it is requested to work the R shape (round sound shape) of a radius value with high accuracy, by provid ing an R shape preparing means for editing a corner part into the R shape. CONSTITUTION:Shape data DM are read out of a digitize data storage means 2 to an R shape preparing means 6, an area line SL expressing a prescribed range including the corner part of shape data DM is inputted through an area line input means 7 to the R shape preparing means 6, further, a value SR of the R radius of the R shape to be added to the corner part is inputted through an R radius input means 8 to the R shape preparing means 6 and moreover, a shape pattern SP expressing whether the shape of the corner part is recessed or projecting is inputted through a shape pattern input means 9 to the R shape preparing means 6. Then, the R shape preparing means 6 performs prescribed offset processing so that the corner part can be edited into the R shape with the desired radius value.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digitizing data processing apparatus for converting digitizing data obtained by scanning a master model shape to create an NC program.

[0002]

2. Description of the Related Art Conventionally, the following processing has been required to create a mold including a free-form surface shape. First, the same master model as the mold is created in advance. Then, by contacting the stylus with the surface of the shape and scanning the shape multiple times at a predetermined interval, the shape of the master model is measured with a digitizer device. Data). Then, the measurement data is offset by the stylus radius of the stylus and the tool radius of the machining tool by the digitizing data processing device, and tool locus data capable of die machining by the tool is created.

FIG. 5 is a block diagram showing an example of the above-mentioned digitized data processing device. Measurement data DD from a digitizer device (not shown) is stored in the digitized data storage means 2 via the digitized data input means 1. Measured data DD is digitized data storage means 2
Digitized data representing the surface shape of the master model, which is read from the tool locus creating means 3 by the tool locus creating means 3 and is offset in the tool locus creating means 3 according to the stylus shape data DS input through the tool shape data input means 4 (hereinafter , Shape data) DM. Further, the digitized data (hereinafter referred to as tool locus data) D in which the shape data DM is offset in the tool locus creating means 3 according to the tool shape data DT input through the tool shape data input means 4 to represent the movement locus of the tool D
P. This shape data DM and tool trajectory data DP
Are stored in the digitized data storage means 2. And
The tool path data DP is read from the digitized data storage means 2 to the NC program conversion means 5 and converted,
A C machining program is created and output.

[0004]

When machining is performed using the tool trajectory data created by the above-mentioned conventional digitizing data processing apparatus, measurement errors and master model shape defects when scanning the master model shape by the digitizer apparatus are caused. Therefore, the accuracy of the obtained measurement data becomes low, and the R shape of the corner portion may not be reproduced with a desired radius value. If you want to change only the radius value of the R shape of the corner due to a design change to the master model shape, manually correct the master model shape and scan the master model shape again with the digitizer device to obtain the measurement data. I had to get it, and it took a lot of man-hours.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a digitizing data processing device capable of easily creating an NC program for processing a corner portion of a shape into an R shape having a desired radius value. To provide.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a digitized data processing device, and an object of the present invention is to input a region line representing a predetermined range including a corner of shape data. Means for inputting the value of the R radius of the R shape attached to the corner of the shape data
Radius input means, shape pattern input means for inputting a shape pattern expressing whether the corner portion of the shape data is concave or convex, the shape data, the area line,
This is achieved by including an R shape creating unit that edits the corner portion into the R shape based on the value of the R radius and the shape pattern. The R shape creating means extracts digitized data in a range surrounded by the area line from the shape data to obtain extracted shape data, sets the value of the R radius to r, and when the shape pattern is a concave shape, Offset the extracted shape data by + r value and use the digitized data as the first forward offset data,
By offsetting the first forward offset data by a -r value to make the digitized data the first reverse offset data, and combining the first reverse offset data and the shape data excluding the extracted shape data When the corner portion is edited into the R shape and the shape pattern is a convex shape, the extracted shape data is offset by a -r value, and the digitized data is used as the second reverse offset data, and the second reverse offset is used. The data is offset by the + r value to make the digitized data the second forward offset data, and the second forward offset data is combined with the shape data excluding the extracted shape data to form the corner portion with the R shape. Achieved by making edits to.

[0006]

According to the present invention, the area line that defines the corner portion of the shape data, the radius value of the R shape attached to the corner portion, and the shape pattern indicating the concave and convex state of the corner portion are input and predetermined. Since the offset processing is performed, the corner portion can be edited into an R shape having a desired radius value.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing an example of a digitized data processing device according to the present invention in correspondence with FIG. 5. Similar elements are given the same reference numerals and explanations thereof are omitted. In this embodiment, the R shape creating means 6 and the area line inputting means 7
Further, the provision of the R radius input means 8 and the shape pattern input means 9 is different from the conventional digitized data processing apparatus shown in FIG. Measurement data DD from a digitizer device (not shown) is stored in the digitized data storage means 2 via the digitized data input means 1.
The measurement data DD is read from the digitizing data storage means 2 to the tool trajectory creating means 3 and is offset according to the shape data DS of the stylus input via the tool shape data input means 4 to form shape data DM. It is stored in the means 2. The shape data DM is read from the digitized data storage means 2 to the R shape creating means 6 and the area line S expressing the predetermined range including the corner portion of the shape data DM is inputted via the area line input means 7.
L is input to the R shape creating means 6, and the R radius value SR of the R shape to be attached to the corner portion is input to the R shape creating means 6 via the R radius input means 8 and the corner portion is concave. A shape pattern SP expressing whether the shape is convex or convex is input to the R shape creating means 6 via the shape pattern input means 9.

Shape data DM in the R shape creating means 6
A range surrounded by the area line SL is extracted and used as extraction shape data DA, and the remaining portion is used as remaining shape data DL. When the shape pattern SP has a concave shape, the R shape creating means 6 offsets the extracted shape data DA by the positive R radius value + SR to form the forward offset data DO, and further the forward offset data DO has the negative R radius. Value-SR is offset to form the reverse offset data DI, and the remaining shape data DL and the reverse offset data DI are combined to create the R shaping data DR in which the value of the R radius of the corner is SR. It The R shaping data DR is digitized data storage means 2
Stored in.

When the shape pattern SP has a convex shape, the R shape creating means 6 offsets the extracted shape data DA by a negative R radius value −SR, and reverse offset data DI.
And the reverse offset data DI is a positive radius value + S
It is offset at R to form forward offset data DO, and the remaining shape data DL and the forward offset data DO are combined to create R shaping data DR in which the value of the R radius of the corner portion is SR. The R shaping data DR is stored in the digitized data storage means 2.

The created R-shape forming data DR is read from the digitizing data storage means 2 to the tool locus creating means 3 and is offset according to the tool shape data DT inputted via the tool shape data input means 4 to be used as a tool. The locus data DP is stored in the digitized data storage means 2. Then, the tool locus data DP is read from the digitized data storage means 2 to the NC program conversion means 5 and converted, and an NC program is created and output.

With such a configuration, an operation example of the digitized data processing device of the present invention will be described with reference to the flowcharts of FIGS. 2, 3, and 4 and the explanatory diagrams of FIGS. 6, 7, 8, 9, and 10. To do. The R shape creating means 6 first inputs the area line SL from the area line input means 7, inputs the value SR of the R radius from the R radius input means 8, and further inputs the shape pattern SP from the shape pattern input means 9. (Step 1). As shown in FIG. 6, FIG. 7A, and FIG. 7B, data Lm for one scan is input from the shape data DM (step 2), the portion within the area line SL of Lm is taken out as La, The remaining portion is set to Ll (step 3). La is output as one scan of the extracted shape data DA, and Ll is output as one scan of the remaining shape data DL (step 4). Then, it is determined whether Lm is the final scan (step 5), and if it is not the final scan, the process returns to step 2 and the same processing is performed for the data of the next scan, and if it is the final scan, the step 6
Go to. Next, the extracted shape data DA is input (step 6), and it is determined whether the shape pattern SP has a concave shape or a convex shape (step 7).

When the shape pattern SP has a concave shape, FIG.
As shown in (a), the data La for one scan of the extracted shape data DA is offset by a positive R radius value + SR to be Lo (step 8), and Lo is output as one scan of the forward offset data DO. (Step 9). Then, it is determined whether La is the final scan (step 1
0) If it is not the final scan, the process returns to step 8 to perform the same processing on the data for the next scan, and if it is the final scan, the process proceeds to step 11. As shown in FIG. 8B, the forward offset data DO is input (step 1
1), the data Lo for one scan of the forward offset data DO is offset by a negative R radius value −SR to be Li (step 12), and Li is output as one scan for the reverse offset data DI (step). 13). Then, it is determined whether Lo is the final scan (step 1
4) If it is not the final scan, the process returns to step 12 to perform the same processing on the data for the next scan, and if it is the final scan, the process proceeds to step 15. The reverse offset data DI has a shape obtained by rounding the corners of the extracted shape data DA with the R radius value SR. As shown in FIG. 9, the data Ll for one scan is input from the remaining shape data DL, and the data Li for one scan is input from the reverse offset data DI (step 15).
And data Li are combined into Lr (step 16), L
r is output as one scan of the R shaping data DR (step 17). Then, it is determined whether or not Ll is the final scan (step 18), and if it is not the final scan, the process returns to step 15 to perform the same processing for the data of the next scan, and if it is the final scan, the processing ends.

When the shape pattern SP has a convex shape, FIG.
As shown in (a), the data La for one scan of the extracted shape data DA is offset by a negative R radius value −SR to be Li (step 19), and Li is taken as one scan of the reverse offset data DI. Output (Step 2
0). Then, it is judged whether or not La is the final scan (step 21), and if it is not the final scan, the process returns to step 19 to perform the same processing for the data of the next scan, and if it is the final scan, the process proceeds to step 22. Figure 10
As shown in (b), the reverse offset data DI is input (step 22), and the data Li for one scan of the reverse offset data DI is offset by the value of the positive R radius + SR to be Lo (step 23), Lo is output as one scan of the forward offset data DO (step 2).
4). Then, it is determined whether or not Li is the final scan (step 25), and if it is not the final scan, the process returns to step 23 to perform the same processing for the data of the next scan, and if it is the final scan, the process proceeds to step 26. The data L1 for one scan is input from the remaining shape data DL and the data Lo for one scan is input from the forward offset data Do (step 26), the data Ll and the data Lo are combined into Lr (step 27), Lr to R
The shaping data DR is output as one scan (step 28). Then, it is determined whether or not Ll is the final scan (step 29). If it is not the final scan, the process returns to step 26 and the same process is performed for the data of the next scan, and if it is the final scan, the process ends.

As can be seen from the above embodiment, the present invention has been described in the case where the radius value of the corner portion of the shape is edited into an R shape having a radius value larger than the original shape, but the present invention is not limited to this, and the shape is not limited to this. It is possible to edit the shape of the corner portion into an R shape having an arbitrary radius value by previously editing the corner portion into a sharp corner shape.

[0015]

As described above, according to the digitizing data processing apparatus of the present invention, it is possible to edit the corner portion of the shape data into the R shape having the desired radius value. It is possible to easily create an NC program required to improve processing efficiency.
In addition, it is possible to easily change the desired radius value of the corner shape of the shape data to the R shape due to the design change,
It is possible to significantly reduce man-hours.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of a digitized data processing device of the present invention.

FIG. 2 is a flowchart showing an example of an operation example of the device of the present invention.

3 is a flowchart showing an example of an operation example of the device of the present invention, which is a continuation of the flowchart shown in FIG.

4 is a flowchart showing an example of an operation example of the device of the present invention, which is a continuation of the flowchart shown in FIG.

FIG. 5 is a block diagram showing an example of a conventional digitized data processing device.

FIG. 6 is a first explanatory diagram for explaining an operation example of the R shape creating means of the device of the present invention.

FIG. 7 is a second explanatory diagram for explaining an operation example of the R shape creating means of the device of the present invention.

FIG. 8 is a third explanatory diagram for explaining an operation example of the R shape creating means of the device of the present invention.

FIG. 9 is a fourth explanatory diagram for explaining an operation example of the R shape creating means of the device of the present invention.

FIG. 10 is a fifth explanatory diagram for explaining an operation example of the R shape creating means of the device of the present invention.

[Explanation of symbols]

 1 Digitize Data Input Means 2 Digitize Data Storage Means 3 Tool Trajectory Creation Means 4 Tool Geometry Data Input Means 5 NC Program Conversion Means 6 R Shape Creation Means 7 Area Line Input Means 8 R Radius Input Means 9 Shape Pattern Input Means

Claims (2)

[Claims] 1. Digitizing data that represents the surface shape of a master model is used as shape data, and tool path data that is digitizing data that expresses the movement path of a tool for machining a workpiece is created from this shape data. In a digitizing data processing device for converting a value to create a numerical control program, a region line input means for inputting a region line expressing a predetermined range including the corner portion of the shape data, and R attached to the corner portion of the shape data. R radius input means for inputting a value of the R radius of the shape; shape pattern input means for inputting a shape pattern expressing whether the corner portion of the shape data is concave or convex; Based on the area line, the value of the R radius, and the shape pattern, the corner portion is R-shaped.
A digitized data processing device comprising: an R shape creating means for editing into a shape. 2. The R shape creating means extracts digitized data in a range surrounded by the area lines from the shape data to obtain extracted shape data, sets a value of the R radius to r, and the shape pattern is concave. In the case of a shape, the extracted shape data is offset by a + r value to make the digitized data first forward offset data, and the first forward offset data is offset by a −r value to make the digitized data first. Of the first offset data and the shape data other than the extracted shape data are combined to edit the corner portion into the R shape, and when the shape pattern is a convex shape, the extraction is performed. The shape data is offset by the -r value and the digitized data is used as the second reverse offset data. Offset by + r value to make the digitized data second forward offset data, and combine the second forward offset data with the shape data excluding the extracted shape data to edit the corner portion into the R shape. The digitizing data processing device according to claim 1, wherein