WO2004001514A1 - 板金加工用cad/camシステム - Google Patents
板金加工用cad/camシステム Download PDFInfo
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- WO2004001514A1 WO2004001514A1 PCT/JP2002/006276 JP0206276W WO2004001514A1 WO 2004001514 A1 WO2004001514 A1 WO 2004001514A1 JP 0206276 W JP0206276 W JP 0206276W WO 2004001514 A1 WO2004001514 A1 WO 2004001514A1
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/4093—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
- G05B19/40937—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine concerning programming of machining or material parameters, pocket machining
- G05B19/40938—Tool management
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/35—Nc in input of data, input till input file format
- G05B2219/35167—Automatic toolpath generation and tool selection
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/36—Nc in input of data, input key till input tape
- G05B2219/36352—Select tool as function of part shape, number of grooves and groove width
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Definitions
- NC numerical control
- NC commands machine tool control commands
- FIG. Fig. 1 shows the processing flow for converting sheet metal developed figure data created by CAD into executable NC data.
- Process 1 Automatic tool assignment to sheet metal development figure and internal creation of non-executable NC program Sheet metal development figure data created by CAD (S102) is converted to a single continuous line of shape unit, then product Outer line, window cutout line, one-punch line (Figure is completed by one-punch processing of a specially shaped mold, not a processed shape, like a bar of a molding air hole to release heat) (S104). After that, these single continuous lines except the one-punch line are matched with the registered machining shape pattern file with the same line data structure (S 106) to specify the pattern.
- the notch shape and window cutout shape with variable dimensions of the product outer circumference included in the sheet metal development figure are processed by automatic tool allocation (S108) for each registered addition shape pattern.
- automatic tool allocation tools are selected in consideration of the tensile strength of the material used and the information on the punching tonnage of the machine.
- the processing shape is divided into a plurality of processing areas and processed by a combination of NC processing instructions.
- appropriate overlapping processing at the boundaries of the divided processing areas and defects in the processing order and processing direction will cause material scraps during processing, resulting in serious trouble.
- information such as material lines, part outer peripheral processing lines, window cutout lines, forming processing lines, and tool shapes to be used are referred to as information for determining these, and the processing order and processing direction are automatically determined. Automatic tool assignment is not supported,
- the non-executable NC program created internally in process 1 is automatically converted to an executable NC program that can be actually machined (S114).
- This automatic correction and optimization process is based on manually created NC programs and NC programs automatically generated by the automatic design and manufacturing processes, without being aware of the machining limitations of the machine (exceeding the movable range of the material, tool paths that damage the machine).
- the process of automatic correction was realized in the 1970s, and a similar process was applied to automatic correction and optimization.
- one registered machining shape pattern is automatically divided into a plurality of machining shapes with reference to the pattern-specific tool assignment file.
- This automatic tool assignment function is used to define the general machining shape part in sheet metal processing, including sheet metal development graphic files created by CAD (continuous line processing, product outer peripheral lines, manufacturing lines, material lines, one-punch shape lines, etc.) Variable) size with registered line segment configuration It matches with the machining shape pattern corresponding to the shape, and applies the tool selection criteria registered in advance, the machining command to be used, the machining order, and the machining direction.
- Automatic tool allocation is realized by independent processing for each pattern, such as considering overlapping processing of adjacent divided processing shapes, processing order, and processing direction.
- the machining shape that is not registered is the contour machining in which the material residue (slag) remains, and manual correction is required.
- New machining shape patterns have the power to add new processing New shapes vary widely by industry, and it is extremely difficult to achieve high-precision automatic tool allocation.
- Processes 1 and 2 above are the basic technologies for automatically converting sheet metal CAD figures into NC programs, but the biggest remaining problem is due to the lack of support for the cross-linking work to be applied to automatic tool allocation. Problem solving.
- sheet metal processing of punch press machines in one processing industry (for example, kitchen equipment, control panels, machine tool covers, building exterior wall panels, etc.), the finished product has the same shape, but the developed processing shape differs for each user. There is. As there are several types of rolled dice, sheet metal products require user-specific specifications in order to pursue the limitations of processing machine specifications (processing size, limitations on die shape interference of bending machines, etc.) and ease of assembly and production. Sheet metal parts Various developed shapes occur. Since the required pattern covers the entire sheet metal industry, it cannot meet the needs of individual users in the future.
- An object of the present invention is to perform high-precision, general-purpose automatic tool allocation by computer processing without depending on a registration pattern in a sheet metal CAD / CAM system. .
- the present invention relates to a CAD / CAM system for sheet metal working for generating an NC program from a CAD drawing, wherein arcs and hatched portions are drawn on the CAD figure.
- a divided machining shape process for converting the divided machining shape into a divided machining shape surrounded by an orthogonal straight line, and allocating a tool to the divided machining shape; a tool allocation processing means; generated after being converted to the divided machining shape. It is characterized by comprising a rectangular tool allocating means for performing a tool allocating process on a rectangle, and a means for generating an NC program from data to which tools are allocated.
- FIG. 1 is a flowchart showing a process for creating an NC program from a conventional CAD drawing.
- FIG. 2 is a flowchart showing a process for creating an NC program from a CAD drawing of the embodiment.
- FIG. 3 is a diagram illustrating a tool allocation process for a preferential machining shape.
- FIG. 4 is a diagram for explaining a tool allocation process for an arc that can be treated as a circle.
- FIG. 5 is a diagram for explaining the expression of a continuous line.
- FIG. 6 is a diagram showing an example of expressing the continuous line in FIG.
- Fig. 7 is for explaining the update of the continuous line when performing the tool assignment processing of the priority machining shape.
- FIG. 8 is a diagram of updating the continuous line file when performing the tool assignment processing of the preferential machining shape.
- FIG. 9 is another diagram for explaining updating of the continuous line when performing the tool assignment processing of the preferential machining shape.
- FIG. 10 is another diagram of updating the continuous line file when performing the tool assignment processing of the preferential machining shape.
- FIG. 11 is a diagram illustrating an example of a processing shape unit in the general-purpose automatic tool allocation processing.
- FIG. 12 is a diagram showing continuous line data of the processing shape unit of FIG.
- FIG. 13 is a flowchart of the process of dividing the circular arc, the inclined straight line, and the tool.
- FIG. 14 is a diagram showing an example of an orthogonal straight line-added figure of the outer machining arc.
- FIG. 15 is a diagram illustrating an example of an orthogonal straight line-added figure of an inner machining arc.
- FIG. 16 is a view of the example of the processing shape unit shown in FIG. 11 after the division of the circular arc and the inclined straight line and the tool allocation processing.
- FIG. 17 is an example of the remaining rectangular continuous line data of FIG.
- FIG. 18 is a diagram for explaining priority retrieval.
- FIG. 19 is a flowchart showing a process of dividing a rectangle into a material residue and a remaining rectangle and allocating a tool.
- FIG. 20 is a diagram showing a process of rectangular division with respect to FIG.
- FIG. 21 is a diagram illustrating a tool allocation process for the divided rectangle.
- BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail with reference to the drawings.
- FIG. 2 is a flowchart showing the flow of processing by a computer according to the embodiment of the present invention. Steps that perform the same processing as in FIG. 1 are denoted by the same reference numerals. First, an embodiment of the present invention will be described using this flowchart. It should be noted that the processing of the present invention described below is performed by hardware included in an ordinary high-performance personal computer. I can.
- a CAD drawing is created (S102) in the same manner as in FIG. (S103) Define tools such as wire, product window cutout, material wire, etc. and assign tools (S210-
- the basis of the embodiment of the present invention is that, in the flowchart of FIG. 2, as a general-purpose tool allocation process, an arc and an inclined straight line portion of a processing shape unit are divided into shapes to which horizontal and vertical orthogonal lines are added (S25). 0), the remaining shape is converted into a rectangle, and tool assignment is performed for each (S280).
- the processing shape unit from the line that constitutes the product outer line enters the material line, which is the smallest rectangle surrounding the product shape, and exits to the material line Is the processing unit of automatic tool allocation (S230).
- each closed figure is one unit. Divide into machining shapes with arcs and inclined straight lines along the machining contour of the continuous line. The processing shape unit will be unified to the divided arc system, right triangle system, and rectangle. As a result, the most difficult material residue shape in sheet metal processing is a horizontal and vertical linear shape.
- machining shape having an arc and an inclined straight line which is divided into machining shapes having orthogonal lines
- tool assignment is performed by simply converting the machining shape into a general-purpose arc system, a right triangle system, and a rectangle.
- the processing line segment before and after over multiple lines related to tool interference, the appropriate machining direction, machining order, and adjacent shape viewed from the material end face or product machining line Although information such as the necessity of overlapping processing is required, the position where the automatic division processing shape occupies the unit processing shape that is the original drawing and the position that occupies the entire part shape is clear. Can be easily referenced. As a result, high-precision general-purpose automatic tool allocation that does not depend on the registered machining shape pattern is realized.
- the process of allocating a tool to a preferential machining shape (S210) will be described with reference to FIGS.
- the tool assignment processing of this preferential machining shape is performed using the continuous line file 242 for the work copied for the operation of 240 continuous line files.
- the continuous line file 240 is used in the tool assignment process (S111) for correcting the result of the automatic tool assignment process described below in detail by hand placement (FIG. 2). The reason for this is that
- a special tool is a tool that can perform multiple processes with one punch of one mold. If there is a special tool in the available tool information, the priority is searched for the presence or absence of the applicable shape and the tool assignment is executed.
- a long circle tool is a tool that combines an arc and a rectangular shape. When this tool is used, the U-notch shape 322, oval tool shape 324, oval shape overtake shown in the upper diagram of Fig. 3 (a)
- the special tool 4-way Radius 330 shown in Fig. 3 (b) uses the 90-degree arcs 332, 334, 336, and 338 at the four corners as the tool assignment part shape, and often comes out at the corners of the sheet metal product. It is a tool that completes about 5 outside arc machining with one punch arc machining.
- the V-notch shape 310 in FIG. 3 (a) is also preferentially executed as a triangular machining shape for the allocation process. This is a process to avoid being divided into two oblique lines as a shape having an inclined straight line in the general-purpose tool allocation process described later.
- the tool assignment processing of an arc that can be treated as a circle is also the priority shape processing.
- the arc of the inner machining of 180 ° ⁇ center angle and 360 ° is processed as a circle. This will be described with reference to FIG. .
- Inside machining is the process of punching the inside of a circle.
- FIG. 4 (a) shows that an arc 352 for inner machining with a center angle of 270 ° at the corner shown on the left is processed as a circle 353 as shown on the right. Also, FIG. 4 (b) shows that the arc 354 of the inside machining with a central angle of 300 ° below the rectangle shown on the left is also processed as a circle 355 as shown on the right. In FIG. 4 (c), the circular arc 356 of the inner processing with the central angle of 180 ° on the left side is processed as a circle 357 as on the right side. Large arcs that are difficult to handle as circles are processed by the general-purpose tool allocation process.
- Shapes 342, 344, 346, and 348 with corners and circles at the corners, as shown in Figures 3 (c) and (d), are box-shaped products that occur at the bottom of the corner where the two bent surfaces meet.
- This is a general machining shape that allows interference distortion to escape through these cut shapes, and is a micromachining with a width of 3 to 5 mm using a special tool. For these, the processing of the preferential processing shape is performed. The processing for a continuous line file when performing the priority machining shape processing on this shape will be described with reference to FIGS.
- This continuous line is the same as that used in the above-mentioned Japanese Unexamined Patent Publication No. 6-292930 “Method of allocating tools to sheet metal working figures”.
- the CAD developed figure is output to the continuous line file 240 having attributes such as the product perimeter line and the product window line through the continuous line processing of Fig. 2 (S103).
- the CAD figure is represented as a continuous line of a straight line and an arc.
- the purpose of using this continuous line is to perform various calculations for automatic tool assignment and to generate tool assignment drawing lines.
- the contents are converted into a representation form that makes it easy to calculate tool assignments by converting CAD figures as continuous lines of straight lines and arcs.
- the direction of the continuous line is expressed counterclockwise for the product outer line (closed figure), clockwise for the product window (closed figure), and unified so that the tool is assigned to the right side in the direction of travel of the continuous line. ing.
- the process of converting the line segments constituting the CAD shape into continuous lines In the process, it is common to calculate and add various information to simplify the tool assignment calculation.
- Point Pi is because the starting point of the continuous line, the immediately preceding point, the point P 4. ⁇ Tsu Te, the angle of the point Pi is a point P 4, 90 ° external angle of P 15 P 2. The angle of the point P 2 is likewise a 1 00.1 74 degrees.
- the angle is expressed as the center angle of the arc to the next point.
- P 3 in FIG. 5 the center of the arc angle 1 35.2 7 through P 3
- P 4 is its angle. Since the point P 4 is the arc end point, angle 1 6 plus angle, and the exterior angle 1 0 2.1 9 1 ° external angle 6 and the point P 4 7. '6 35 ° point P 3 for P 4 9. Expressed as 826 (see Fig. 6).
- FIGS. 7 and 9 show the change of the continuous line when the processing of the preferential machining shape is performed. According to the change of the continuous line, the file storing the data of the continuous line is changed as shown in FIGS.
- FIG. 7 (a) shows the state of the continuous line before the processing of the preferential machining shape.
- P 2, P 3, P 4 , shape P 5 is formed of FIGS. 7 (a) is one of the priority processing shape.
- An example of the data stored in the continuous line file corresponding to the shape in Fig. 7 (a) is shown in Fig. 8 (a).
- the continuous line in this example also has the type of the outer line or the outline of the window, and the data of the X and Y coordinates of the point.
- FIG. 7A When the processing of the priority processing shape is performed on the processing shape shown in FIG. 7A, the processing shapes (P 2 , P 3 , F 4) formed by P 2 , P 3 , P 4 , and P 5 are formed. , allocation processing of the tool is made to P 5), a process of deleting from the continuous line part of the machining shape processing is completed (P 2, P 3, P 4, P 5) is performed. This process is performed as shown in Fig. 7 (b). By extending the straight line passing through P lt P 2 and the straight line passing through P 5 and P 6 , which are connected to, a new AP point is added to the intersection, and the priority machining shape part is deleted. It is done.
- FIG. 8 (b) shows the data of the continuous line corresponding to FIG. 7 (b).
- FIG. 9 (a) shows an example of continuous line data corresponding to the shape shown in FIG. 9 (a).
- the machining shape (P 2 , P 3 , P 4 , P 5 ) is assigned to the tool, and the processed shape (P 2 , P 3 , P 4 , P 5 ) is deleted from the continuation line. Is performed.
- the straight line ( ⁇ ⁇ , ⁇ 2 ) and the straight line ( ⁇ 6 , ⁇ 5 ), which are connected to the preferred kamen shape, are extended.
- P x , P 6 An example of corresponding continuous line data is shown in Fig. 10 (b).
- the processing of the priority machining shape (S210) is performed, the shape for which the tool allocation process has been completed is removed from the continuous line file.
- the tool assignment processing for this priority machining shape is performed in the same manner as the conventional assignment processing, and the tool assignment data is stored so that the non-executable NC program can be created later, as in the conventional case.
- the line segments that make it difficult to punch without leaving material residue in the sheet metal processing shape are horizontal lines, vertical lines other than vertical lines, inner arc processing with a central angle ⁇ 180 °, and outer arc processing at all angles.
- a machined shape having these line segments cannot be treated as a circle or the like as described above, and the processing of the material residue shape left after machining becomes complicated.
- These processing shapes are divided into shapes that are closed by two straight lines or three straight lines that are orthogonal to each other, and consolidation of the shapes to be subjected to the division processing is achieved.
- FIG. 11 shows an example of one unit of the processing shape in the general-purpose tool allocation processing.
- the general-purpose tool allocation processing will be described below using the example of the shape in FIG.
- the machining shape unit to be assigned as a general-purpose tool is defined as the section from P i 0, which is the point away from the material line, to P 100, which is the point returning to the material line, in the product outer circumference as shown in the example in Fig. 11. Become.
- the product window cutout line the product window cutout shape of the closed figure is one unit.
- FIG. 12 shows continuous line data corresponding to the processing shape unit.
- continuous line data 244 for each processing shape is obtained (S230).
- FIG. 13 is a flowchart showing the division processing for each processing shape unit. The processing shown in the flowchart of FIG. 13 will be described in detail below using the example of the processing shape unit shown in FIGS. 11 and 12.
- This division processing is P 3 . , P 4 .
- detecting the arc center angle + 90 outside working line passing through the two points (P 30, P 40) ( YES at S 302), first, arc starting point P 30, end point P 4. From, Y-axis, respectively, by extending a line parallel to the X axis, to create the intersection AP 31. Shape formed by the created intersection and the start and end points of the arc Jo (P 30, P 40, AP 31) with dividing the machining shape units (S 304).
- Divided form (P 30, P 40, AP 31) may be passed to the arc system tool allocation processing (S 306), performs a tool assignment process similar to the conventional method.
- FIG. 14 shows an example of a modified figure of the divided machining figure generated under the conditions of the start angle and the end angle of the outer arc machining.
- Fig. 14 (a) is an example where the arc center angle is 180 ° ⁇ 0 ⁇ 360 °
- Fig. 14 (b) is an example where the arc center angle is 0 and 180 °.
- a straight line (AP) parallel to the X-axis and Y-axis at an appropriate distance (for example, 5 mm) from the arc contact point n , AP n + 1 ), (AP n + AP n + 2 ), and (AP n + 2 , AP n + 3 ) draw orthogonal lines to perform batch processing of only arcs.
- AP n is the intersection of the straight line, the four points AP n + have AP n + 2, AP n + 3 is created. This divided shape has good processing accuracy and is easy to process.
- AP n and AP n + 1 are intersections of the straight lines (AP n and AP n + 1 ) and the straight lines (P n and AP n ) and (AP n + 1 and P n + 1 ). The intersections AP n and AP n + 1 are newly created points.
- the inner arc machining shape (P 60, P 7.) , Divided into working shape with a perpendicular line (S 31 0).
- An inner arc machining shape is a machining shape that has a shape that punches the inside of an arc. is there.
- P 6 To detect an arc having a central angle of 90 ° passing through the two points P 70 and (YES at S 3 08), through the two points of the continuous line P 60, P 70, X-axis, exchange of straight line parallel to the Y axis Create point AP 61 (see Figure 16). Machining shape by dividing the machining shape units (P 60, P 70, AP 61) (S 3 10), passes into an arc-based tool allocation processing (S 312). At the same time, AP 6 ⁇ is added to the continuous line data 244 of the shape unit. In the arc-shaped tool assignment process, the tool assignment process is performed in the same manner as in the past.
- Figure 15 shows an example of the change figure of the divided machining figure that occurs under the conditions of the start angle and end angle of the inner arc machining.
- Fig. 15 (a) is an example where the arc center angle is 180 ° ⁇ ⁇ ⁇ 360 °
- Fig. 15 (b) is an example where the arc center angle is ⁇ ⁇ 180 °.
- the continuous line data 244 of the processing shape unit forms a rectangular shape of the material residue (the hatched portion in Fig. 16). I have.
- the rectangular shape of the material slag is composed of a horizontal line parallel to the X axis and a vertical line parallel to the Y axis.
- continuous line data 244, force, slag, material residue and remaining rectangular continuous line data 246 are created for each machining shape (S260).
- the rectangular shape of the material slag is divided into rectangles by using the material sacrifice remaining rectangular continuous line data 2446, and the divided rectangle is subjected to a tool assignment process (S280).
- Peripheral product line (counterclockwise)
- the remaining rectangular continuous line data that can be drawn adds a material line to the figure that is broken at the entrance and exit from the material line, so the direction is opposite to the direction of the continuous line. It becomes clockwise. Since the line direction of the continuous rectangular line data created from the product window line does not change, the line direction of the continuous rectangular line data is clockwise regardless of the outer circumference and the window.
- the remaining rectangular continuous line is composed of only horizontal and vertical line segments.
- a rectangle is cut out using the remaining rectangle continuous line data shown in Fig. 17, but "side position" is provided as a data item to easily determine the width and depth of the rectangle.
- T (T: Top) is "B (B: Bottom) means the bottom side
- R (R: Right) means the right side
- L (L: Left) means the left side. Data can be set.
- the line segments C and E which are the bottoms of the concave portions, are the lines to be preferentially selected.
- the continuous line point to be judged is P n , its coordinate values are X n and Y n , the previous point is P n — i and the coordinate value is ⁇ ⁇ — ⁇ ⁇ or the next two points
- ⁇ ⁇ + 2 and coordinate values are ⁇ ⁇ + 2 and ⁇ ⁇ + 2
- Category of ⁇ ⁇ are as follows.
- the line type is determined for each of the horizontal and vertical lines, so the product and the cut, and the material and the cut may be the same straight line.
- the straight line type is These are products and materials, respectively.
- the item “start” is a flag indicating the start point of the remaining rectangular continuous line that is a closed curve. Processing of the remaining rectangular continuous line data is started from the point where “start” is “1”.
- the residual rectangular continuous line data may be divided into a plurality of closed curves, and by using this flag, the number of closed curves can be grasped, and this can be dealt with.
- a similar flag is used for continuous line data. If necessary, determine the type of line to be used.
- the process of creating and taking out points and editing the continuous rectangle continuous line data by the rectangle is the same process as the editing of the continuous line file related to the priority machining shape processing. Processed in the creation process (S260) of the remaining rectangle continuous line data 244,
- FIG. 21 (a) is a diagram when rectangle 1 is extracted in FIG. In this figure, "line type”"product” P 2.
- the machining direction is set so as to punch in the direction of the material wire. Therefore, Pi.
- the machining area blade area
- the slag is repeatedly punched in the product line, causing a production trouble.
- this rectangle 2 also has a material line and a cut line, the figure is enlarged in the direction of the material line and the cut line considering overlap processing, and the processing direction is a line segment (P ⁇ o, W 2 ) line is the force et product line (AP 91, W 2) to create a data taking the machining direction in the direction.
- a non-executable NC program is created (S112), optimized (S114), and automatically converted to an executable NC program that can be actually machined (S1) 16).
- Processing such as automatic correction and optimization of the NC program can be performed using conventional methods.
- the processing order of the extracted rectangles will be particularly described.
- the machining order must be a machining order that is consistent with the machining order of all parts in the NC program optimization (S114) in Fig. 2.
- This processing order has a complicated system.
- Regarding the processing order in the material slag and the remaining rectangle simply set the processing order that completes in the remaining rectangle unit, and May be taken out in order.
- rectangles with a line type whose four sides are already cut have the highest priority processing order.
- the entire machining order includes all machining elements, and should be optimized in the NC program overall machining order system in the NC program optimization process (S114).
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02741261A EP1486839A4 (en) | 2002-06-24 | 2002-06-24 | CAD / CAM SYSTEM FOR FAOLING SHEETS |
US10/513,045 US7110848B2 (en) | 2002-06-24 | 2002-06-24 | Computer program product |
PCT/JP2002/006276 WO2004001514A1 (ja) | 2002-06-24 | 2002-06-24 | 板金加工用cad/camシステム |
JP2004515454A JP3679110B2 (ja) | 2002-06-24 | 2002-06-24 | 板金加工用cad/camシステム,プログラム及びプログラムを記録した記録媒体 |
Applications Claiming Priority (1)
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PCT/JP2002/006276 WO2004001514A1 (ja) | 2002-06-24 | 2002-06-24 | 板金加工用cad/camシステム |
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WO2004001514A1 true WO2004001514A1 (ja) | 2003-12-31 |
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PCT/JP2002/006276 WO2004001514A1 (ja) | 2002-06-24 | 2002-06-24 | 板金加工用cad/camシステム |
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US (1) | US7110848B2 (ja) |
EP (1) | EP1486839A4 (ja) |
JP (1) | JP3679110B2 (ja) |
WO (1) | WO2004001514A1 (ja) |
Cited By (2)
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JP2007280381A (ja) * | 2006-03-23 | 2007-10-25 | Autoform Engineering Gmbh | 工具パラメータをコンピュータ支援生成するための方法、データ処理システム、およびコンピュータプログラム、ならびにデータキャリア |
CN102023616A (zh) * | 2011-01-04 | 2011-04-20 | 山东理工大学 | 三角Bézier曲面数控精加工刀轨快速生成方法 |
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US7418309B2 (en) * | 2005-09-22 | 2008-08-26 | The Bradbury Company, Inc. | Methods and systems for optimizing punch instructions in a material forming press system |
CN100468252C (zh) * | 2005-12-27 | 2009-03-11 | 鸿富锦精密工业(深圳)有限公司 | 钣金冲压计算机辅助制造系统及方法 |
US7369917B2 (en) * | 2006-01-17 | 2008-05-06 | National Instruments Corporation | System and method for automatic sorting of elements in drawing specifications for efficient tracing using motion control |
US20070261318A1 (en) * | 2006-04-14 | 2007-11-15 | Mifsud Vincent D | Kit for manufacturing an enclosure from prefabricated panels |
DE112008000357T5 (de) * | 2007-02-09 | 2009-12-17 | Mori Seiki Co., Ltd., Yamatokoriyama-shi | Automatisches Programmierverfahren und automatische Programmiervorrichtung |
JP5931638B2 (ja) * | 2012-07-31 | 2016-06-08 | 東芝機械株式会社 | 数値制御システムおよび数値制御データ生成方法 |
DE102013211960A1 (de) * | 2013-06-24 | 2014-12-24 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | System und Verfahren zur Erkennung von Umformungen |
CN107037785B (zh) * | 2017-05-15 | 2020-11-27 | 广州市力鼎汽车零部件有限公司 | 外挂式u形梁冲孔生产线cam系统及构建方法 |
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- 2002-06-24 US US10/513,045 patent/US7110848B2/en not_active Expired - Fee Related
- 2002-06-24 WO PCT/JP2002/006276 patent/WO2004001514A1/ja not_active Application Discontinuation
- 2002-06-24 JP JP2004515454A patent/JP3679110B2/ja not_active Expired - Fee Related
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007280381A (ja) * | 2006-03-23 | 2007-10-25 | Autoform Engineering Gmbh | 工具パラメータをコンピュータ支援生成するための方法、データ処理システム、およびコンピュータプログラム、ならびにデータキャリア |
US7885722B2 (en) | 2006-03-23 | 2011-02-08 | Autoform Engineering Gmbh | Method planning for manufacturing sheet-metal forming parts |
US8271118B2 (en) | 2006-03-23 | 2012-09-18 | Autoform Engineering Gmbh | Method planning for manufacturing sheet-metal forming parts |
CN102023616A (zh) * | 2011-01-04 | 2011-04-20 | 山东理工大学 | 三角Bézier曲面数控精加工刀轨快速生成方法 |
CN102023616B (zh) * | 2011-01-04 | 2012-05-23 | 山东理工大学 | 三角Bézier曲面数控精加工刀轨快速生成方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1486839A1 (en) | 2004-12-15 |
JPWO2004001514A1 (ja) | 2005-10-20 |
US7110848B2 (en) | 2006-09-19 |
EP1486839A4 (en) | 2005-07-06 |
JP3679110B2 (ja) | 2005-08-03 |
US20050228534A1 (en) | 2005-10-13 |
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