JP2888107B2 - CAD / CAM equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CAD / CAM apparatus, and more particularly, to generating NC data in consideration of notes and symbols in a product drawing and using the notes and symbols in the product drawing.
CAD / CAM that can define the final processing shape and processing conditions
Related to the device.

[0002]

2. Description of the Related Art FIG. 20 is a diagram showing a main part of a conventional CAD / CAM apparatus for generating NC data. 201 is a product drawing design unit, and 202 is a processed drawing design unit. The product drawing design unit 201 includes a graphic data definition unit 203,
Note / symbol data definition unit 205 and graphic data storage unit 2
06 and a note / symbol data storage unit 208. The machining diagram design unit 202 includes a machining shape definition unit 210, a machining condition definition unit 211, a machining shape data storage unit 212, and a machining condition data storage unit 213. Reference numeral 15 denotes N for generating NC data from the processing shape data and the processing condition data.
It is a C data generation unit.

FIG. 21 shows a conventional CAD / CAM device,
It is a flowchart at the time of generating C data. FIG.
2 is an image diagram corresponding to the flowchart. For example, the material W (FIG. 23) is
And a product having through holes 55 and 56 (FIG. 24). For the sake of simplicity, the length, width, and height of the material W are assumed to be surface-processed according to the finish dimensions.

In the graphic data definition unit 203, an image 2
001I defines drawing data of a developed drawing. The graphic data defined in this way is stored in the graphic data storage unit 206 (Step 2001).

[0005] Further, when creating the development drawing, notes and symbols are used in addition to graphic elements and dimension lines. The annotation is, for example, “diameter 5 depth 10 chamfering 1 through hole” representing the processing shape described in the explanation line 46 shown in FIG.
It is “H1” representing the processing conditions, and specifically, FIG.
It is a processing shape as shown in FIG. These notes and symbols
The annotation / symbol data definition unit 205 refers to the developed drawing and is defined, and is stored in the annotation / symbol data storage unit 208 (step 2002). As an example of the above storage, there is a mode shown in FIG.

[0006] The machining shape definition unit 210 refers to the image data stored in the graphic data storage unit 206 or refers to the annotation / symbol data stored in the annotation / symbol data storage unit 208 to generate the image 2003I. Is defined. For example, a through hole A00 shown in FIG. 28 is selected from a registered hole shape group (not shown), and FIG.
The nominal dimensions of “diameter 5 depth 10 chamfer 1” are specified and defined from the nominal dimension table shown in FIG. Then, the selected through-hole shape is arranged at predetermined positions 44 and 45. The processing shape data defined in this way is stored in the processing shape data storage unit 212 (Step 2003).

The processing condition definition unit 211 refers to the note and symbol data stored in the note and symbol data storage unit 208 to define the processing conditions. For example, as shown in FIG. 30, a pocket 53 having a depth of 10 with graphic elements 49, 50, 51, and 52 at the top has a depth of 1 with the graphic element 48 at the top.
In the case of machining with the island 54 of 0, a corresponding machining step (FIG. 31) is selected from a registered machining step group (not shown), and this is defined as a machining condition “Z1”.

Similarly, when the through holes 55 and 56 shown in FIG. 26 are machined, a corresponding machining process (FIG. 32) is selected from a registered machining process group (not shown), and the corresponding machining process (FIG. 32) is selected. H1 ”. The processing conditions “H1” and “Z1” thus defined are stored in the processing condition data storage unit 213 as processing condition data. A display example of the processing conditions “H1” and “Z1” defined as described above is shown in an image 2004I (step 2004).

The NC data generator 215 generates NC data based on the processing shape data 212 and the processing condition data 213. A display example of the machining path based on the NC data is shown in an image 2005I (step 2005).

[0010]

The above conventional CAD / C
In the AM device, the machining drawing design unit 202 redefines the machining shape and machining conditions by referring to the note / symbol data already defined in the product diagram design unit 201. Therefore, there is a problem that labor is required and automation is hindered.

Japanese Patent Application Laid-Open No. Hei 1-266678 discloses a technique for creating a part drawing by attaching attribute data to each graphic element. However, notes and symbols in the drawings are taken into consideration. It does not support automation.

[0012] The present invention has been made to solve the above problems, manpower keeps, it can be automated
And the final processing shape and processing according to the notes and symbols in the product drawing
An object of the present invention is to provide a CAD / CAM device capable of defining conditions .

[0013]

According to a first aspect, the present invention relates to a method for converting a final processed shape in a product drawing into a graphic element and a dimension line.
And define this as the figure data.
Figure data definition means to be stored in the data storage
And note the final processing shape and processing conditions of the specified part in
And use this definition as a note / symbol data
And Note-symbol data definition means for storing in the data storage unit, either the annotation and symbols data is the last machining shape and machining conditions
Attribute data defining means for defining, as attribute data, data representing means for associating the graphic data with the note / symbol data to which the attribute is attached, and a graphic associated with the data relating means. Machining condition automatic definition means for automatically defining machining conditions from data and annotation / symbol data, and machining for automatically defining the final machining shape from graphic data and annotation / symbol data associated by the data-related means There is provided a CAD / CAM apparatus characterized by comprising automatic shape definition means.

[0014] In a second aspect, the present invention relates to the above-mentioned CA.
In the D / CAM device, when the note / symbol data represents a figure, the D / CAM apparatus includes a simplified figure data defining means for defining the figure data so that the figure data relating to the note / symbol data is displayed in a simplified manner. A CAD / CAM device is provided.

In a third aspect, the present invention relates to the above-mentioned CA.
In the D / CAM device, an attributed note / symbol data definition changing means for changing the definition of the note / symbol data with an attribute, and a processing condition or a processing shape in conjunction with the definition of the changed note / symbol data And a machining condition / machining shape interlocking changing means for changing the machining conditions.

[0016]

In the CAD / CAM apparatus according to the present invention, the note / symbol data defining means defines the note / symbol in the product drawing as the note / symbol data. For example, if "note 5 depth 10 chamfering 1" is described in the note, it is defined as such as note data. Subsequently, in the attribute data defining means, the note / symbol data indicates whether the final
Is defined as attribute data. For example annotation data of "diameter 5 depth 10 chamfer 1" because it represents the final machining shape <br/>, assigned the attributes of the final machining shape to the annotation data. Next, the data association unit associates the graphic data with the note / symbol data to which the attribute is added. For example, the graphic data of a through hole and the processing of the through hole
The attribute is associated with the annotation data defining the final machining shape by attributes. The processing condition automatic definition means and the processing shape automatic definition means automatically define the final processing shape and processing conditions from the associated graphic data and note / symbol data. For this reason, it is possible to omit the redefinition of the processing shape and the processing conditions when designing the processing diagram. Also notes and symbols
Can be used to define the final machining shape, so fill in the product drawing
This saves labor for the graphic data to be created, and reduces man-hours.

When the note / symbol data represents a figure, the figure data is defined so that the figure data relating to the note / symbol data is displayed in a simplified manner. Then, at the time of designing the machining drawing, the definition of the machining shape can be omitted for the note / symbol data.

Further, even if the processing shape and processing conditions are changed, if the processing conditions and processing shapes are changed in conjunction with the change of the definition of the note / symbol data with the attribute, the product Note that there is no need to change the graphic data in the drawing or redo the design drawing. You only need to edit the symbol.

[0019]

FIG. 1 is a schematic diagram showing one embodiment of the present invention.
FIG. 2 is a configuration diagram of a main part related to generation of NC data of a CAM device. Reference numeral 1 denotes a product drawing design unit, and reference numeral 2 denotes a processed drawing design unit. The product drawing design unit 1 includes a graphic data definition unit 3, an attribute data definition unit 4, a note / symbol data definition unit 5, a graphic data storage unit 6, an association unit 7, and a note / symbol data storage unit 8. , The attribute data storage unit 9, the link information data 14, and the attribute-added note data editing unit 24. The graphic data definition unit 3 includes a simplified graphic data definition unit 31.
And an arrangement position data definition unit 32.

The machining drawing design unit 2 includes a machining shape data storage unit 12, a machining condition data storage unit 13, an automatic machining condition definition unit 16, and an automatic machining shape definition unit 17.
Reference numeral 15 denotes an NC data generating unit that generates NC data from the processing shape data and the processing condition data.

FIG. 2 is a flow chart for explaining an embodiment of claim 1 when NC data is generated by the CAD / CAM device of the present invention. FIG. 3 is an image diagram corresponding to the flowchart. For example, the material W (FIG. 4) is processed into a product (FIG. 5) having an island 52 in a pocket 51. For the sake of simplicity, the length of the material W,
The width and height shall be surface-processed to the finished dimensions.

The graphic data definition unit 3 defines graphic data of the developed drawing as shown in the image 1I, and the defined graphic data is stored in the graphic data storage unit 6 (step 1).

When a drawing is created, notes and symbols are used in addition to graphic elements and dimension lines. The annotation is, for example, “Z1”, described in an explanation line 65 shown in FIG.
"Pond upper surface 0 lower surface -10" and "Island upper surface 0 lower surface -10". Hereinafter, these notes and symbols are referred to as the processing conditions “Z1” and the processing shapes “Pond upper surface 0 lower surface-10” and “Island upper surface 0 lower surface-1”.
Explanation will be made assuming that it represents "0". Notes and symbols are defined in the note / symbol data definition unit 5 based on the developed drawing, and are stored in the note / symbol data storage unit 8. In the attribute data definition unit 4, the fact that the note “Z1” represents the processing condition is described in “Pond upper surface 0 lower surface-10”,
It is defined as an attribute that "island upper surface 0 lower surface -10" represents a processed shape and stored in the attribute data storage unit 9 (step 2). As an example of the above storage, there is an embodiment shown in FIG.

The associating unit 7 associates the graphic data with the note / symbol data with the attribute. That is, the note “Z1” is changed to the pocket (pond) shape 51 and the island 52.
Is associated with a predetermined graphic element of the pocket shape 51 and the island 52.
The linked information data associated in this way is stored in the linked information data storage unit 14 (Step 3). As an example of the above storage, there is an embodiment shown in FIG.

In the machining shape automatic definition section 16, the machining shape is, for example, a graphic element 81, 82, 83, 8 as shown in FIG.
Upper surface height 0 with 4 as upper surface, lower surface height -10 depth 10
Are automatically defined as an island 52 having a top surface height of 0 and a bottom surface height of -10, and a depth of 10 with the graphic element 85 as the upper surface. An image 4I shows a display example of the processing shape defined as described above. The defined machining shape data is stored in the machining shape data storage unit 12.

Subsequently, in the processing condition automatic definition unit 17, the graphic elements 81,
82, 83, 84, 85
It is checked whether the attribute of the processing condition is added to “1”. If so, the note "Z1" will be
A registered machining condition is automatically defined by the name Z1 as shown in FIG. 1 and stored in the machining condition data storage unit 13.

The NC data generating section 15 generates NC data based on the processing shape data 12 and the processing condition data 13. A display example of the machining path based on the NC data is shown in an image 5I (step 4).

FIG. 11 is a flowchart for explaining claim 2 when NC data is generated by the CAD / CAM device of the present invention. FIG. 12 is an image diagram corresponding to the flowchart. For example, material W (FIG. 1)
3) is a product having through holes 131 and 132 (FIG. 14)
Shall be processed. For the sake of simplicity, the length of the material W,
The width and height shall be surface-processed to the finished dimensions.

The graphic data definition unit 3 defines graphic data of the developed drawing as shown in the image 11I, and the defined graphic data is stored in the graphic data storage unit 6 (step 11).

In preparing the development drawing, notes and symbols are used in addition to graphic elements and dimension lines. The note is, for example, "diameter 5 depth 10 chamfering 1 through hole" described in the explanation line 141 shown in FIG. In the following, description will be made assuming that these notes and symbols represent a processed shape.

The notes and symbols are defined in the note / symbol data definition section 5.
Are defined based on the development drawing and stored in the note / symbol data storage unit 8. The attribute data definition unit 4 defines as an attribute that the note "diameter 5 depth 10 chamfering 1 through hole" represents a machining shape and stores it in the attribute data storage unit 9 (step 12). As an example of the above storage, there is an embodiment shown in FIG.

The associating unit 7 associates the graphic data with the note / symbol data with the attribute. That is, the fact that the note “diameter 5 depth 10 chamfering 1 through hole” represents the processing shape is associated with the arrangement positions 142 and 143. The linked information data thus associated is stored in the linked information data storage unit 14 (step 1).
3).

In the machining shape automatic definition unit 16, the arrangement positions 142, 14 stored in the connection information data storage unit 14 are stored.
It is checked whether or not the attribute of the processing shape is attached to the note “diameter 5 depth 10 chamfering 1 through hole” according to 3. If it is attached, the processing shape is automatically defined as the through holes 131 and 132 having a diameter of 5 and a depth of 10 and a chamfer 1 as shown in FIG. An image 12I is a display example of the processing shape defined as described above. The defined machining shape data is stored in the machining shape data storage unit 12.

Subsequently, in the processing condition automatic definition unit 17, the layout position 14 stored in the link information data storage unit 14 is set.
The processing conditions are automatically defined in the note “H1” according to Nos. 2 and 143 and stored in the processing condition data storage unit 13. For example, when processing the through holes 131 and 132, a corresponding processing step is selected from a registered processing step group (not shown),
This is defined as a processing condition.

The NC data generator 15 generates NC data based on the processing shape data 12 and the processing condition data 13. An image 15I shows a display example of the machining path based on the NC data (step 14).

Further, the processed shape displayed in advance by the simplified graphic data definition unit 31 may be simplified. For example, FIG.
As shown in FIG.
1, 162, and marks 161 and 16 at the time of product drawing
2 and note to define the hole. Mark 16
A point shape or the like may be used instead of 1,162.

FIG. 18 is a flowchart when the NC data is changed in conjunction with the editing of notes and symbols in the CAD / CAM apparatus of the present invention. FIG. 19 is an image diagram corresponding to the flowchart. Figure data definition part 3
Defines graphic data of a developed drawing as shown in the image 171I, and the defined graphic data is stored in the graphic data storage unit 6 (step 171).

When creating the development drawing, notes and symbols are used in addition to graphic elements and dimension lines. The annotation is, for example, “Z” described in the explanation lines 181 to 184.
1 ”,“ M5 ”,“ H1 ”, and“ φ5 drill depth 10 ”.

The notes and symbols are defined in the note / symbol data definition section 5
Are defined based on the development drawing and stored in the note / symbol data storage unit 8. The attribute data definition unit 4 defines as an attribute that the notes “Z1”, “M5”, and “H1” represent machining conditions, and the note “φ5 drill depth 10” represents machining conditions. Is defined as an attribute and stored in the attribute data storage 9 (step 172).

The associating unit 7 associates the graphic data, the note / symbol data, and the attribute data. That is, the fact that the notes "Z1,""M5," and "H1" represent machining conditions is associated with the pocket shape and the predetermined graphic element of the island, and the note "diameter 5 depth 10" represents the machining shape. Is associated with the placement position. The linked information data associated in this way is stored in the linked information data storage unit 14 (step 173).

In the attribute-added note / symbol data editing unit 24,
Edit the notes and symbols with attributes to change the processing shape and processing conditions. For example, as in the image 174I, the notes “Z1”, “M5”, “H1”, “diameter 5 depth 1”
When "0" is edited to the notes "Z2", "M5", "H2", and "diameter 5 depth 12", the note-with-attribute / symbol data editing unit 24 automatically changes the definition of the note before editing. The processing shape and processing conditions are changed (step 174).

As a result, NC data is generated with the edited processing conditions and processing shape (step 175).

[0043]

According to the CAD / CAM apparatus of the present invention, since the final processing shape and the processing conditions are automatically defined, the operation can be performed without human intervention and automation. Also note or
Since the final machining shape can be defined by the symbol,
Labor saving of figure data to be filled is achieved, and man-hours are reduced.
You. In addition, since graphic data can be defined so as to be displayed as a simplified graphic, labor saving of graphic data to be entered in a product drawing is achieved and man-hours are reduced. Notes with attributes
Since the machining conditions and machining shape are changed in conjunction with the change in the definition of the symbol data, even if there is a change in the machining shape or machining condition, it is necessary to change the graphic data in the product drawing and redesign the machining drawing. There is no.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a main part related to generation of NC data of a CAD / CAM device according to an embodiment of the present invention.

FIG. 2 is a flowchart when NC data is generated by the CAD / CAM device of FIG. 1;

FIG. 3 is an image diagram corresponding to the flowchart of FIG. 2;

FIG. 4 is a perspective view showing a material shape.

FIG. 5 is a perspective view showing a processed shape processed by generated NC data.

FIG. 6 is a detailed explanatory diagram of the image of FIG. 3;

FIG. 7 is a schematic diagram illustrating a storage example of note / symbol data with attributes;

FIG. 8 is a schematic diagram illustrating a storage example of linked information associated with each other.

FIG. 9 is an explanatory diagram showing graphic elements related to a processing shape.

FIG. 10 is a table showing registered processing conditions.

FIG. 11 is a flowchart when NC data is generated by the CAD / CAM device of the present invention.

FIG. 12 is an image diagram corresponding to the flowchart of FIG. 10;

FIG. 13 is a perspective view showing a material shape.

FIG. 14 is a perspective view showing a processed shape processed by generated NC data.

FIG. 15 is a detailed explanatory diagram of the image of FIG. 10;

FIG. 16 is a schematic diagram showing a storage example of note / symbol data with attributes;

FIG. 17 is an explanatory diagram when displayed using a simplified graphic.

FIG. 18 is a flowchart when the NC data is changed in conjunction with editing of a note or a symbol in the CAD / CAM device of the present invention.

FIG. 19 is an image diagram corresponding to the flowchart in FIG. 17;

FIG. 20 is a configuration diagram of a main part related to generation of NC data of a conventional CAD / CAM device.

FIG. 21 is a flowchart when NC data is generated by a conventional CAD / CAM device.

FIG. 22 is an image diagram corresponding to the flowchart of FIG. 20;

FIG. 23 is a perspective view showing a material shape.

FIG. 24 is a perspective view showing a processed shape processed by generated NC data.

FIG. 25 is a detailed explanatory diagram of the image of FIG. 23;

FIG. 26 is a perspective view showing a processed shape of a through hole defined in FIG. 20;

FIG. 27 is a schematic diagram showing an example of storing graphic data and note / symbol data.

FIG. 28 is a detailed view of a processing shape of a through hole defined in FIG. 20;

FIG. 29 is a nominal size chart of a machined shape of a through hole defined in FIG. 20;

FIG. 30 is an explanatory diagram showing graphic elements related to a processing shape.

FIG. 31 is a table showing processing conditions according to the pocket processing shape of FIG. 20;

FIG. 32 is a table showing processing conditions related to the processing shape of the through hole in FIG. 20;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Product drawing design part 2 Processing drawing design part 3 Graphic data definition part 4 Attribute data definition part 5 Note / symbol data definition part 6 Graphic data storage part 7 Association part 8 Note / symbol data storage part 9 Attribute data storage part 12 Processing shape Data storage unit 13 Machining condition data storage unit 14 Linking information data 15 Machining shape data 16 Machining condition automatic definition unit 17 Machining shape automatic definition unit 24 Note data editing unit with attribute 31 Simple graphic data definition unit 32 Arrangement position data definition unit

Claims (3)

(57) [Claims] 1. A final machining shape in a product drawing requires a graphic.
Element and dimension line, and this defined
Figure data defining means for storing in the figure data storage section
And the final processing shape and processing conditions of the specified part in the product drawing
Is defined using notes and symbols, and this defined
-A note / symbol data defining means to be stored in the symbol data storage unit, and the note / symbol data is a final processed shape and processed.
Attribute data defining means for defining which of the conditions is represented as attribute data; data associating means for associating the graphic data with the note / symbol data with the attribute by attribute; It is a working condition auto definition means for automatically defining the machining conditions from the graphic data and the note-symbol data, the final machining shape automatically from the associated graphic data and note-symbol data in the data-related means CAD / characteristics comprising a processing shape automatic definition means for defining
CAM device. 2. The CAD / CAM apparatus according to claim 1, wherein, when the note / symbol data represents a figure, the figure data is displayed in a simplified manner. CAD / CAM characterized by comprising simplified figure data definition means for defining
apparatus. 3. The CAD according to claim 1 or claim 2.
/ CAM device, an attributed note data definition changing means for changing the definition of attributed note / symbol data;
A CAD / CAM apparatus including a machining condition / machining shape interlocking change unit that changes a machining condition or a machining shape in conjunction with the definition of the changed note / symbol data.