CN109635322A - A kind of method that automobile panel process complementary surface section line is arranged automatically - Google Patents
A kind of method that automobile panel process complementary surface section line is arranged automatically Download PDFInfo
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- CN109635322A CN109635322A CN201811308801.9A CN201811308801A CN109635322A CN 109635322 A CN109635322 A CN 109635322A CN 201811308801 A CN201811308801 A CN 201811308801A CN 109635322 A CN109635322 A CN 109635322A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/15—Vehicle, aircraft or watercraft design
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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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
- Y02P90/30—Computing systems specially adapted for manufacturing
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- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
Abstract
The invention discloses a kind of methods that automobile panel process complementary surface section line is arranged automatically, it is characterized by comprising the following steps: S1, the boundary curve (3) of automobile panel part (1) and die parting line (4) projected in the plane vertical with pressing direction along pressing direction；Maximum distance after S2, the boundary curve (3) for determining automobile panel part (1) and die parting line (4) projection；The radius value of S3, the maximum distance as round as a ball (6) implements round as a ball algorithm on the outside of the boundary curve (3) of automobile panel part (1), forms new boundary curve (3 ')；S4, rolling circle radius and die parting line (4) ask friendship, obtain the mapping relations (7) put on automobile panel part (1) new boundary curve (3 ') and die parting line (4)；S5, section line (8) are arranged between the new boundary curve (3 ') of automobile panel part (1) and die parting line (4).By the invention it is obtained that projecting the section line that do not interfere on pressing direction.
Description
Technical field
The present invention relates to forming process of auto-body panels and manufacturing field, more particularly, to a kind of automatic arrangement section
The method that line direction is used to that automobile panel process complementary surface to be avoided to be overlapped
Background technique
In automobile panel process complementary surface design process, often mended using the method for 2 dimension section line of arrangement to control
Fill the shape in face.And arrange that the key problem of section line is the interference how avoided between section line, i.e., it hangs down with pressing direction
In straight plane, there are the projections of two section lines there is intersection.This will lead to process complementary surface and there is weight on pressing direction
Folded curved surface, this is absolutely not to allow to occur in stamping process design.In U.S. Patent Application Publication specification US7623939B2
In disclose a kind of method for arranging section line, this method considers 2 directions because usually determining section line, and a factor is
The Geometrical change of adjacent area is minimum, another factor is the direction of material flowing.This method is although it is contemplated that section line side
To the influence to part deformation, but the interference problem between section line is not accounted for, may gone out in the position of part recess
, there is overlapping on pressing direction so as to cause process complementary surface in existing section line interference so that subsequent design and manufacture difficulty or ease into
Row.
Summary of the invention
For at least one of prior art the above defects or improvement requirements, the present invention provides a kind of automobile panels
The method that process complementary surface section line is arranged automatically, acquisition project the section line that do not interfere on pressing direction.
To achieve the above object, according to one aspect of the present invention, a kind of automobile panel process complementary surface section is provided
The method that upper thread is arranged automatically, includes the following steps:
S1, the boundary curve of automobile panel part and die parting line are projected to along pressing direction it is vertical with pressing direction
In plane；
Maximum distance after S2, the boundary curve for determining automobile panel part and die parting line projection；
S3, the maximum distance implement rolling as round as a ball radius value on the outside of the boundary curve of automobile panel part
Circle algorithm, forms new boundary curve；
S4, rolling circle radius and die parting line ask friendship, put on acquisition automobile panel part new boundary curve and die parting line
Mapping relations；
S5, section line is arranged between automobile panel part new boundary curve and die parting line.
Preferably, in step S3, by the maximum distance multiplied by after a sampling factor as round as a ball radius value, it is described
Sampling factor is greater than 1.3.
Preferably, in step S3, sampling factor takes 1.5-2.5.
Preferably, round as a ball when side roll, to generate two rails outside the boundary curve of automobile panel part in step S3
Mark:
One track is the round as a ball envelope curve for rolling and leaving on the boundary curve of automobile panel part, is covered in automobile
The region of cover piece part recess, it is round as a ball to sink between two o'clock, original boundaries curve is replaced using circular minor arc part at this time,
Form new boundary curve；
An other track is the motion profile in the round as a ball center of circle；
There are mapping relations, i.e. the two of rolling circle radius endpoint for point on this two tracks.
Preferably, in step S3, the region for the recess that round as a ball algorithm detects is filled up.
Above-mentioned preferred feature can be combined with each other as long as they do not conflict with each other.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, have below beneficial to effect
Fruit:
1, the method that automobile panel process complementary surface section line of the invention is arranged automatically, avoids arranging in the prior art
The defect of process complementary surface section line method, acquisition project the section line that do not interfere on pressing direction, which can be used for
Smooth, nonoverlapping high-quality process complementary surface is constructed, analog simulation and the mold manufacture of automobile panel are further applied.
2, according to the present invention, may be implemented efficiently, steadily automatic arrangement technology supplement face section line, the section line of arrangement
Have mutually non-interference feature, to reduce artificial adjustment, improves the quality and efficiency in design technology supplement face.
Detailed description of the invention
Fig. 1 is the process complementary surface signal for the method that automobile panel process complementary surface section line of the invention is arranged automatically
Figure；
Fig. 2 is round as a ball and mapping relations in method that automobile panel process complementary surface section line of the invention is arranged automatically
Schematic diagram；
Fig. 3 is the method middle section line arrangement signal that automobile panel process complementary surface section line of the invention is arranged automatically
Figure；
Fig. 4 is the flow chart for the method that automobile panel process complementary surface section line of the invention is arranged automatically；
Fig. 5 is automobile panel part in method that automobile panel process complementary surface section line of the invention is arranged automatically
The top view illustration of boundary curve and die parting line；
Fig. 6 is automobile panel part in method that automobile panel process complementary surface section line of the invention is arranged automatically
Implement the result schematic diagram of round as a ball algorithm on the outside of boundary curve；
Fig. 7 is rolling circle radius and to divide mould in method that automobile panel process complementary surface section line of the invention is arranged automatically
The intersection point schematic diagram of line；
Fig. 8 is on boundary curve new in method that automobile panel process complementary surface section line of the invention is arranged automatically
Point and the mapping relations schematic diagram put on die parting line.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.The present invention is described in more detail With reference to embodiment.
As Fig. 1 needs the structure between automobile panel part 1 and binder surface 2 in automobile cladding element stamping process design
Smooth process complementary surface 5 is made, two boundaries of process complementary surface 5 are the boundary curve 3 and pressure of automobile panel part respectively
Die parting line 4 on charge level 2.
As shown in figure 4, the present invention provides a kind of method that automobile panel process complementary surface section line is arranged automatically, including
Following steps: the boundary curve 3 of automobile panel part 1 and die parting line 4 are projected to along pressing direction vertical with pressing direction
Plane on.The boundary curve 3 for determining automobile panel part 1 and the maximum distance after the projection of die parting line 4.In automobile panel
Implement round as a ball algorithm on the outside of the boundary curve 3 of part 1.Rolling circle radius and die parting line 4 ask friendship, and it is new to obtain automobile panel part 1
Boundary curve 3 ' and die parting line 4 on the mapping relations 7 put, as shown in Figure 2.Automobile panel part 1 boundary curve with
Section line 8 is arranged between die parting line 4, as shown in Figure 3.
Simpler understandable in order to tell about, the principle of technical solution is illustrated using a simplified model, automobile covering
Part part 1 carries out simplifying signal.
The method that automobile panel process complementary surface section line of the invention is arranged automatically, includes the following steps:
S1, the boundary curve 3 of automobile panel part 1 and die parting line 4 are projected to along pressing direction and is hung down with pressing direction
In straight plane.As shown in Figure 5, it is shown that the top view of automobile panel part boundary curve and die parting line, i.e., the two is along punching
Press the state on direction projection to plane.
Maximum distance between S2, the two-dimentional boundary curve 3 for calculating automobile panel part 1 and two-dimentional die parting line.
S3, the maximum distance multiplied by a sampling factor (generally taking 1.5-2.5) afterwards as round as a ball 6 radius value,
Implement round as a ball algorithm (simulating wheel on the ground rolling process) on the outside of the boundary curve 3 of automobile panel part 1, is formed new
Boundary curve 3 '.
As shown in Figure 6, it is shown that implement the result of round as a ball algorithm on the outside of the curve of automobile panel part boundary.Round as a ball 6
In the 3 outer side roll of boundary curve of automobile panel part 1, two tracks are generated:
One track is round as a ball 6 to roll the envelope curve left on the boundary curve 3 of automobile panel part 1, in vapour
The region that vehicle covering part 1 is recessed, round as a ball 6 can sink between two o'clock, be replaced at this time using circular 10 part of minor arc original
Boundary curve forms new boundary curve 3 '；An other track is the motion profile 9 in round as a ball 6 center of circle；On this two tracks
Point is apparent between any two rolling circle radius there are mapping relations 11, i.e. the two of rolling circle radius endpoint, in addition to endpoint, does not have
Crosspoint.
Wherein, the region for the recess that round as a ball algorithm detects carries out filling up 12, as shown in Figure 8.
S4, rolling circle radius and die parting line 4 ask friendship, as shown in fig. 7, obtaining the new boundary curve 3 ' of automobile panel part 1
With the mapping relations 7 put on die parting line 4, as shown in Figure 8.
S5, section line 8 is arranged between the new boundary curve 3 ' of automobile panel part 1 and die parting line 4, as shown in Figure 3.
Section line 8 is arranged according to mapping relations 7, it is ensured that section line 8 is not interfered.
The method that automobile panel process complementary surface section line of the invention is arranged automatically, avoids arranging work in the prior art
Skill supplements the defect of face section line method, and acquisition projects the section line that do not interfere on pressing direction, which can be used for structure
Smooth, nonoverlapping high-quality process complementary surface is made, analog simulation and the mold manufacture of automobile panel are further applied.
According to the present invention, may be implemented efficiently, steadily automatic arrangement technology supplement face section line, the section line tool of arrangement
Standby mutually non-interference feature improves the quality and efficiency in design technology supplement face to reduce artificial adjustment.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (5)
1. a kind of method that automobile panel process complementary surface section line is arranged automatically, which comprises the steps of:
S1, the die parting line (4) on the boundary curve (3) and binder surface (2) of automobile panel part (1) is projected along pressing direction
Onto the plane vertical with pressing direction；
Maximum distance after S2, the boundary curve (3) for determining automobile panel part (1) and die parting line (4) projection；
The radius value of S3, the maximum distance as round as a ball (6), it is real on the outside of the boundary curve (3) of automobile panel part (1)
Round as a ball algorithm is applied, new boundary curve (3 ') is formed；
S4, rolling circle radius and die parting line (4) ask friendship, obtain automobile panel part (1) new boundary curve (3 ') and die parting line
(4) mapping relations (7) put on；
S5, section line (8) are arranged between the new boundary curve (3 ') of automobile panel part (1) and die parting line (4).
2. the method that automobile panel process complementary surface section line as described in claim 1 is arranged automatically, it is characterised in that:
In step S3, by the maximum distance multiplied by the radius value after a sampling factor as round as a ball (6), the sampling factor
Greater than 1.3.
3. the method that automobile panel process complementary surface section line as claimed in claim 2 is arranged automatically, it is characterised in that:
In step S3, sampling factor takes 1.5-2.5.
4. special such as the method that the described in any item automobile panel process complementary surface section lines of claim 2-3 are arranged automatically
Sign is:
In step S3, round as a ball (6) generate two tracks in boundary curve (3) outer side roll of automobile panel part (1):
One track is that round as a ball (6) roll the envelope curve left on the boundary curve (3) of automobile panel part (1),
The region of automobile panel part (1) recess, round as a ball (6) can sink between two o'clock, use circular minor arc (10) part at this time
Instead of original boundaries curve, new boundary curve (3 ') is formed；
An other track is the motion profile in round as a ball (6) center of circle；
There are mapping relations (11), i.e. the two of rolling circle radius endpoint for point on this two tracks.
5. the method that automobile panel process complementary surface section line as claimed in claim 4 is arranged automatically, it is characterised in that:
In step S3, (12) are filled up in the region for the recess that round as a ball algorithm detects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811308801.9A CN109635322B (en) | 2018-11-05 | 2018-11-05 | Method for automatically arranging section lines of process supplement surfaces of automobile covering parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811308801.9A CN109635322B (en) | 2018-11-05 | 2018-11-05 | Method for automatically arranging section lines of process supplement surfaces of automobile covering parts |
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| Publication Number | Publication Date |
|---|---|
| CN109635322A true CN109635322A (en) | 2019-04-16 |
| CN109635322B CN109635322B (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811308801.9A Active CN109635322B (en) | 2018-11-05 | 2018-11-05 | Method for automatically arranging section lines of process supplement surfaces of automobile covering parts |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109634217A (en) * | 2018-11-05 | 2019-04-16 | 武汉华锋惠众科技有限公司 | A kind of method that process complementary surface section line is arranged automatically |
| CN116738579A (en) * | 2023-08-08 | 2023-09-12 | 武汉华锋惠众科技有限公司 | Automatic construction method and system for parting line of automobile panel |
| CN116861570A (en) * | 2023-09-04 | 2023-10-10 | 武汉华锋惠众科技有限公司 | Boundary fairing method for automobile panel |
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| JP2005332246A (en) * | 2004-05-20 | 2005-12-02 | Fujitsu Ltd | Method for working contour |
| CN105574301A (en) * | 2016-02-25 | 2016-05-11 | 成都亨通兆业精密机械有限公司 | Design method for automobile covering part drawing die |
| JP5947992B1 (en) * | 2016-03-30 | 2016-07-06 | 株式会社Ｊｓｏｌ | Automatic fillet creation system and program |
| CN107451378A (en) * | 2017-09-05 | 2017-12-08 | 电子科技大学 | A kind of three-dimensional coordinates measurement blade profile samples point extracting method |
| CN108704993A (en) * | 2018-05-16 | 2018-10-26 | 湖南大学 | A kind of method of Automobile Cover Drawing Die bedding-in binder surface design |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005332246A (en) * | 2004-05-20 | 2005-12-02 | Fujitsu Ltd | Method for working contour |
| CN105574301A (en) * | 2016-02-25 | 2016-05-11 | 成都亨通兆业精密机械有限公司 | Design method for automobile covering part drawing die |
| JP5947992B1 (en) * | 2016-03-30 | 2016-07-06 | 株式会社Ｊｓｏｌ | Automatic fillet creation system and program |
| CN107451378A (en) * | 2017-09-05 | 2017-12-08 | 电子科技大学 | A kind of three-dimensional coordinates measurement blade profile samples point extracting method |
| CN108704993A (en) * | 2018-05-16 | 2018-10-26 | 湖南大学 | A kind of method of Automobile Cover Drawing Die bedding-in binder surface design |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109634217A (en) * | 2018-11-05 | 2019-04-16 | 武汉华锋惠众科技有限公司 | A kind of method that process complementary surface section line is arranged automatically |
| CN109634217B (en) * | 2018-11-05 | 2020-09-25 | 武汉华锋惠众科技有限公司 | Method for automatically arranging section lines of process supplement surfaces |
| CN116738579A (en) * | 2023-08-08 | 2023-09-12 | 武汉华锋惠众科技有限公司 | Automatic construction method and system for parting line of automobile panel |
| CN116738579B (en) * | 2023-08-08 | 2023-10-27 | 武汉华锋惠众科技有限公司 | Automatic construction method and system for parting line of automobile panel |
| CN116861570A (en) * | 2023-09-04 | 2023-10-10 | 武汉华锋惠众科技有限公司 | Boundary fairing method for automobile panel |
| CN116861570B (en) * | 2023-09-04 | 2023-11-24 | 武汉华锋惠众科技有限公司 | Boundary fairing method for automobile panel |
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