CN114254413A - Tire mold drawing parameterization system based on contour data and design method - Google Patents
Tire mold drawing parameterization system based on contour data and design method Download PDFInfo
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- CN114254413A CN114254413A CN202111623022.XA CN202111623022A CN114254413A CN 114254413 A CN114254413 A CN 114254413A CN 202111623022 A CN202111623022 A CN 202111623022A CN 114254413 A CN114254413 A CN 114254413A
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- G06—COMPUTING; CALCULATING OR COUNTING
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- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/12—Geometric CAD characterised by design entry means specially adapted for CAD, e.g. graphical user interfaces [GUI] specially adapted for CAD
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
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- G06F30/17—Mechanical parametric or variational design
Abstract
The invention provides a tire mold drawing parameterization system and a design method based on contour data, which belong to the technical field of tire industry and can solve the problems that when the conventional tire mold is designed, if parameterization software is adopted, a great deal of effort is spent on drawing and formula editing of a first specification, and a curve for obtaining parameterization change needs to be modified, marked and explained again; if unparameterized software such as AutoCad is adopted, a large amount of repeated operation is required by designers, the efficiency is low, and the subsequent expansion design problem of the tire mold is not facilitated. The invention relates to a tire mold drawing parameterization system based on contour data, which comprises a database module, a contour sketch module, a pattern pitch sketch module and a two-dimensional engineering drawing module. By the design method, the modules are parameterized and associated with each other, the engineering drawing can be quickly obtained, the standardization and the accuracy of the drawing are improved, and the efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of tire industry, and particularly relates to a tire mold drawing parameterization system and a design method based on contour data.
Background
In the traditional design method of the tire mold drawing, a curve and a tire drawing are in non-parametric design, and when the drawing size is wrong or changed, the curve, mark and comment of the drawing need to be changed again. When the specifications of the existing patterns are increased, developers need to spend a great deal of effort on confirming the drawing method of the existing drawing according to the existing drawing, and then can draw a new specification according to the drawing method. A large amount of repeated operation is required for designers, so that the efficiency is low; is not beneficial to the subsequent expansion design of the tire mold.
At present, although the improvement of parameterization of curves is realized by means of parameterization software in the design of tire mold drawings, a great deal of effort is still needed to be spent on drawing and formula editing of the first specification, and the curves which are obtained by parameterization change need to be modified, labeled and explained again.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a tire mold drawing parameterization system and a design method based on contour data, each module is parameterized and correlated, an engineering drawing can be quickly obtained, the standardization and the accuracy of the drawing are improved, and the efficiency is improved.
In order to achieve the purpose, the technical scheme adopted by the invention on one hand is as follows:
the tire mold drawing parameterization system based on the profile data comprises a database module, a database module and a data processing module, wherein the database module is used for designing and managing the tire profile data, the number of pattern pitches and the proportion of the pattern pitches;
the outline sketch module is used for reading the design data of the database module and creating an outline sketch;
a pattern pitch sketch module which is associated with the outline sketch module parameters and used for creating a pattern sketch;
and the two-dimensional engineering drawing module is used for marking and annotating the associated pattern and outline sketches and creating the two-dimensional engineering sketches.
Further, in the database module, the data of the existing product mold and the test result of the outer edge of the tire are summarized and analyzed by Excel, and new mold contour data are created for direct calling of subsequent cata.
Further, in the outline sketch module, the existing and expected developed outline styles are disassembled according to different outline types, the existing and expected developed outline styles are disassembled into a plurality of parts such as a crown arc, a crown inner arc, a sidewall arc, rim protection, a parting surface, a steel ring and the like, the parts are modularized respectively through a system, and then each independent module is parameterized.
Further, in the pattern pitch sketch module, pattern patterns of the existing tire products are classified, summarized and disassembled, and are specifically disassembled into a main groove, an auxiliary groove, a steel sheet and the like, all parts are modularized through a system, and parameters of each independent module are directly related to the profile data of the tire mold.
Furthermore, in the two-dimensional engineering drawing module, the pattern pitch sketch is subjected to two-dimensional engineering drawing marking through a system, and the marking is associated with the pattern and outline sketch, so that when the pattern and outline sketch are changed, the two-dimensional engineering drawing can be changed along with the pattern and outline sketch, and repeated marking is not needed.
In another aspect, the present invention provides a design method for a tire mold drawing parameterization system based on profile data, comprising the following steps:
s1: according to development requirements, comparing and analyzing the existing profile data, creating profile data required by new development in a database, and establishing a database module;
s2: judging whether the system has a contour model to be created, if so, turning to S4, and if not, carrying out S3;
s3: establishing a contour sketch by using a contour sketch module;
s4: judging whether a pattern model to be created exists in the system, if so, turning to S6, and if not, carrying out S5;
s5: establishing a pattern sketch by using a pattern pitch sketch module;
s6: judging whether an engineering drawing model to be created exists in the system, if so, turning to S8, and if not, carrying out S7;
s7: and creating a two-dimensional engineering drawing by using the two-dimensional engineering drawing module.
Further, the specific step of step S3 is to select corresponding crown arc, crown inner arc, sidewall arc, steel ring, rim protection style according to the characteristics of the required profile design, combine into the required profile, call the data in the database, and establish a profile sketch.
Further, step S5 includes the specific steps of directly writing a formula into each pattern element module through the system, directly managing the pattern pitch size and the outline size through the formula, outputting outline parameters only through the system, reading the relevant parameters output by the outline, expanding the intermediate pitch through the system to obtain the remaining pitches, and creating a pattern sketch.
Further, the concrete step of step S7 is to perform association labeling, modification and description on the parameterized pattern and outline sketch through the system, to realize the association between the pattern and outline sketch and the two-dimensional engineering drawing, to complete the two-dimensional engineering drawing of the first specification, and to obtain the two-dimensional engineering drawing of the subsequent specification by expansion on the basis of the existing specification.
Compared with the prior art, the invention has the advantages and positive effects that:
1. the invention classifies, summarizes and disassembles the pattern and pattern styles of the existing tire products in the pattern pitch sketch module, and specifically separates the pattern and pattern styles into a main groove, an auxiliary groove, a steel sheet and the like, modularizes all parts through a system, can realize the rapid design and combination of the pattern and pattern styles, directly writes the formula into each pattern element module through the system, directly manages the pattern pitch size and the outline size through the formula, and only needs to change the parameters when the pattern size and the outline size are changed because the parameters of each independent module are directly related to the outline data of the tire mold.
2. According to the two-dimensional engineering drawing module, the pattern pitch sketch module is subjected to two-dimensional engineering drawing marking rapidly through the system, and the pattern pitch sketch module are associated, so that when the pattern and the outline sketch are changed, the two-dimensional engineering drawing can be changed along with the pattern pitch sketch marking, and repeated marking is not needed.
Drawings
FIG. 1 is a flow chart of a method for parameterizing a tire mold drawing based on profile data according to an embodiment of the present invention;
FIG. 2 is a sample profile parameter provided by an embodiment of the present invention;
fig. 3 is a single-pitch parameterized sample pattern provided in an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to more clearly and specifically describe the system and the method for parameterizing a tire mold drawing based on profile data according to the embodiments of the present invention, the following description will be given with reference to specific embodiments.
Referring to the attached drawing 1, the system for parameterizing the tire mold drawing based on the contour data comprises a database module, a contour sketch module, a pattern pitch sketch module, a two-dimensional engineering drawing module and the like.
The database module is mainly used for designing and managing tire profile data, pattern pitch quantity and pattern pitch proportion. In the database module, the data of the existing product mold and the test result of the outer edge of the tire are summarized and analyzed by Excel, and new mold contour data are created and used for direct calling of subsequent cata.
The outline sketch module is used for reading the design data of the database module and creating an outline sketch, specifically, the existing and expected developed outline styles are disassembled according to different outline styles, the existing and expected developed outline styles are disassembled into a plurality of parts such as a crown arc, a crown inner arc, a sidewall arc, a rim protection part, a parting surface and a steel ring, the parts are respectively modularized through a system, and then each independent module is parameterized.
The rim protection is taken as an example for explanation, the rim protection is modularized and is split into rim protection types such as rim-free protection, rim protection I and rim protection II, different rim protection style curves are generated by selecting different rim protection types, and then the system performs arrangement and combination of different parts to obtain the required profile type.
Generating a corresponding parameterized outline sketch by calling the outline data of the database module, wherein parameters of each part are as follows:
OD-die outside diameter; SW-die section width;
RD-rim diameter; RW-rim width;
USH-the upper section of the die is high; the lower section of the LSH-die is wide;
r1-mold crown radius 1; r2-radius of crown 2 of die
R3-mold crown radius 3; r4-mold shoulder radius;
ARC 1-radius of crown of mold 1 ARC length; ARC 2-radius of crown of mold 2 ARC length;
ARC 3-radius of crown of mold 3 ARC length; ARC 4-mold shoulder ARC length;
r 1-mold crown radius 1; r 2-radius of die crown 2
r 3-mold crown radius 3; r 4-mold shoulder radius;
arc 1-radius of crown of mold 1 arc length; arc 2-die crown radius 2 arc length;
arc 3-die crown radius 3 arc length; arc 4-mold shoulder arc length;
NSD-mold pattern depth; d, mold parting surface height;
URP-rim protection upper arc; LRP-rim protection lower arc;
the rim protection height; ag 1-steel ring angle;
r _ l-steel ring upper arc; r _ b-steel ring inner arc;
s-width of the steel ring at the angle change position;
TAW-die crown ARC length, TAW ═ ARC1+ ARC2+ ARC 3;
TDW — ARC length above mold parting plane, TDW ═ ARC1+ ARC2+ ARC3+ ARC 4.
According to the characteristics of actual use and common contour combination, the contour sketch is further modularized, so that the common contour does not need to be subjected to redundant operation, and only contour data parameters are required to be provided, and the contour engineering drawing can be directly generated.
In a conventional pattern pitch design method, a pattern of a pattern is usually designed first, and then a pattern pitch is designed. In practice, since the pattern of the pattern has no associated dimensions and customized drawings, the drawings need to be re-standardized and cannot be directly extended to the rest of the pattern pitch for use.
The pattern pitch sketch module classifies, summarizes and disassembles the pattern patterns of the existing tire products, specifically disassembles the pattern patterns into a main groove, an auxiliary groove, a steel sheet and the like, modularizes all parts through a system, and directly associates the parameters of each independent module with the profile data of a tire mold. Specifically, a main groove is selected, then a corresponding auxiliary groove and a corresponding steel sheet are selected according to design requirements, the auxiliary groove and the steel sheet are inserted into the main groove and combined to obtain a new parameterized pattern middle pitch, and the middle pitch is expanded through a system to obtain the rest pitches.
Enough and detailed pattern styles are collected at the early stage, a pattern style library is established in the system, a plurality of new pattern styles can be formed in a splicing or parameter adjusting mode, and the drawing method or formula of the pattern styles does not need to be edited, so that the design is simplified.
In the conventional design, when a profile sketch is obtained and a pattern sketch is designed, a crown arc (TAW) and a pitch-over-parting-surface arc length (TDW) of the profile are measured again, and then the length is related to pattern parameters to calculate the pattern size. In the invention, because the pattern is split and modularized and is associated with the profile data, when the pattern curve is obtained, after the profile design is finished, only the TAW, TDW, OD and the like of the profile are output by a system, and the inserted pattern module is the pattern curve directly associated with the profile. Wherein the relevant parameters of the profile output include the crown arc (TAW) of the profile, the above-parting-plane arc length (TDW), and the Outside Diameter (OD) of the mold, wherein,
TAW' -initial design of pattern crown arc length
Arc length above TDW' -pattern initial design parting surface
L-pattern pitch length; l1-first pitch length; l2-second pitch length.
L' -pattern initial design pitch length;
h 1-pattern longitudinal orientation dimension 1; h1_ 1-first pitch h1 dimension h1_ 2-second pitch h1 dimension.
h 1' -pattern initial design h1 length;
h 2-pattern longitudinal orientation dimension 2; h2_ 1-first pitch h1 size, h2_ 2-second pitch h1 size.
h 2' -pattern initial design h2 length;
h3/h4/h5...
s1-pattern transverse dimension 1; s1' -designing the pattern to be S1 length;
s2-pattern transverse dimension 2; s2' -designing the pattern to be S2 length;
S3/S4/S5...
pattern longitudinal data correlation tire OD
Defining the number of patterns with different pitches, e.g. 5 pitches: n1, n2, n3, n4, n5
The ratio of the different pitch lengths L1: L2: L3: L4: L5 is defined as 0.8:0.9:1.0:1.1:1.2
1)L
L1＝OD*PI/(n1*0.8+n2*0.9+n3*1.0+n4*1.1+n5*1.2)*0.8；
L2＝OD*PI/(n1*0.8+n2*0.9+n3*1.0+n4*1.1+n5*1.2)*0.9；
L3＝OD*PI/(n1*0.8+n2*0.9+n3*1.0+n4*1.1+n5*1.2)*1.0；
L4＝OD*PI/(n1*0.8+n2*0.9+n3*1.0+n4*1.1+n5*1.2)*1.1；
L5＝OD*PI/(n1*0.8+n2*0.9+n3*1.0+n4*1.1+n5*1.2)*1.2；
2)h
①h1:
h1_1＝(L1/L’)*h1’；
h1_2＝(L2/L’)*h1’；
h1_3＝(L3/L’)*h1’；
h1_4＝(L4/L’)*h1’；
h1_5＝(L5/L’)*h1’；
②h2:
h2_1＝(L1/L’)*h1’；
h2_2＝(L2/L’)*h1’；
h2_3＝(L3/L’)*h1’；
h2_4＝(L4/L’)*h1’；
h2_5＝(L5/L’)*h1’；
③h3.....
TAW/TDW of tire with correlation of transverse pattern dimension
①TAW＝(ARC1+ARC2+ARC3)*2
②TDW＝(ARC1+ARC2+ARC3+ARC4)*2
③S1＝TAW/TAW’*S1’；
S2＝TAW/TAW’*S2’；
S3＝....
In the existing engineering drawing design, no matter the design of AutoCAD or parameterized software, the engineering drawing needs to be drawn and explained by technicians one by one, although the parameterization of the pattern curve is completed, after the pattern curve is converted into the engineering drawing, the engineering drawing still needs to be drawn, explained and labeled further, the workload is very large, the drawing process is manual operation, the labeling is easy to miss, and the designed drawing is not standard and uniform enough.
According to the two-dimensional engineering drawing module, the pattern pitch sketch is subjected to two-dimensional engineering drawing marking rapidly through the system, and the marking is associated with the pattern and outline sketch, so that when the pattern and outline sketch are changed, the two-dimensional engineering drawing can be changed along with the pattern and outline sketch, and repeated marking is not needed.
In operation, the section view and the annotation of the two-dimensional engineering drawing are modularized, the section views of different types of engineering drawings can be called through the system, new parameters are changed, and an updated section view is obtained.
After the two-dimensional engineering drawing with the first specification is obtained, the drawing standard and annotation are carried out again, and after the pattern and outline sketch are changed, the drawing of a new product can be obtained only by fine adjustment.
The invention relates to a design method of a tire mold drawing parameterization system based on contour data, which comprises the following steps:
s1: according to development requirements, comparing and analyzing the existing profile data, creating profile data required by new development in a database, and establishing a database module;
s2: judging whether the system has a contour model to be created, if so, turning to S4, and if not, carrying out S3;
s3: selecting corresponding tire crown arc, tire crown inner arc, tire side arc, steel ring and rim protection styles according to the characteristics of the required profile design, combining the tire crown inner arc, the tire side arc, the steel ring and the rim protection styles into the required profile, calling data in a database, and establishing a profile sketch module;
s4: judging whether a pattern model to be created exists in the system, if so, turning to S6, and if not, carrying out S5;
s5: reading related parameters output by the outline, wherein the inserted pattern module is a pattern curve directly related to the outline, expanding the middle pitch through a system to obtain other pitches, and establishing a pattern pitch sketch module;
s6: judging whether an engineering drawing model to be created exists in the system, if so, turning to S8, and if not, carrying out S7;
s7: the two-dimensional engineering drawing is created by using the two-dimensional engineering drawing module, the parameterized pattern and outline sketch are subjected to associated labeling, modification and description through a system, the association between the pattern and outline sketch and the two-dimensional engineering drawing is realized, the two-dimensional engineering drawing of the first specification is completed, the two-dimensional engineering drawing of the subsequent specification is obtained, and the two-dimensional engineering drawing can be obtained by expanding on the basis of the existing specification.
It should be understood that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof without departing from the scope of the embodiments of the present invention.
Claims (9)
1. Tire mould drawing parameterization system based on profile data, characterized by, includes:
the database module is used for designing and managing tire profile data, pattern pitch quantity and pattern pitch proportion;
the outline sketch module is used for reading the design data of the database module and creating an outline sketch;
a pattern pitch sketch module which is associated with the outline sketch module parameters and used for creating a pattern sketch;
and the two-dimensional engineering drawing module is used for marking and annotating the associated pattern and outline sketches and creating the two-dimensional engineering sketches.
2. The system for parameterizing tire mold drawing based on profile data according to claim 1, wherein in the database module, the existing product mold data and the tire rim test results are summarized and analyzed by Excel to create new mold profile data for subsequent direct calling of cata.
3. The system for parameterizing the drawing of the tire mold based on the contour data as claimed in claim 2, wherein in the contour sketch module, the existing and expected developed contour styles are disassembled according to different contour types, and are disassembled into a plurality of parts such as a crown arc, a crown inner arc, a sidewall arc, a rim protector, a parting surface, a steel ring and the like, the parts are modularized respectively through the system, and then each independent module is parameterized.
4. The profile data-based tire mold drawing parameterization system according to claim 3, wherein in the pattern pitch sketch module, pattern patterns of existing tire products are classified, summarized and disassembled, and are specifically disassembled into main grooves, auxiliary grooves, steel sheets and the like, all parts are modularized through the system, and parameters of each independent module are directly related to the tire mold profile data.
5. The system for parameterizing the drawing of the tire mold based on the contour data as claimed in claim 4, wherein in the two-dimensional engineering drawing module, the system is used for marking the pattern pitch sketch by the two-dimensional engineering drawing, and the marking is associated with the pattern and contour sketch, so that when the pattern and contour sketch are changed, the two-dimensional engineering drawing can be changed along with the pattern and contour sketch without repeated marking.
6. The design method of the tire mold drawing parameterization system based on the contour data is characterized by comprising the following steps of:
s1: according to development requirements, comparing and analyzing the existing profile data, creating profile data required by new development in a database, and establishing a database module;
s2: judging whether the system has a contour model to be created, if so, turning to S4, and if not, carrying out S3;
s3: establishing a contour sketch by using a contour sketch module;
s4: judging whether a pattern model to be created exists in the system, if so, turning to S6, and if not, carrying out S5;
s5: establishing a pattern sketch by using a pattern pitch sketch module;
s6: judging whether an engineering drawing model to be created exists in the system, if so, turning to S8, and if not, carrying out S7;
s7: and creating a two-dimensional engineering drawing by using the two-dimensional engineering drawing module.
7. The method as claimed in claim 6, wherein the step S3 is implemented by selecting the crown arc, crown inner arc, sidewall arc, steel ring and rim protection style according to the characteristics of the required profile design, combining them into the required profile, calling the data in the database, and creating the profile sketch.
8. The method for designing a system for parameterizing tire mold drawings based on profile data according to claim 6, wherein the step S5 is implemented by directly writing a formula into each pattern element module through the system, directly managing the pattern pitch size and the profile size through the formula, outputting the profile parameters only through the system, reading the relevant parameters output by the profile, inserting the pattern modules, namely, pattern curves directly associated with the profile, and expanding the intermediate pitch through the system to obtain the rest of the pitches to establish a pattern sketch.
9. The design method of the tire mold drawing parameterization system based on the profile data according to claim 6, wherein the concrete steps of the step S7 are that the parameterized pattern and profile sketch is subjected to associated labeling, modification and description through the system, so that the association between the pattern and profile sketch and the two-dimensional engineering drawing is realized, the two-dimensional engineering drawing of the first specification is completed, and the two-dimensional engineering drawing of the subsequent specification is obtained by expansion on the basis of the existing specification.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115027170A (en) * | 2022-07-25 | 2022-09-09 | 青岛轮云设计研究院有限责任公司 | Drawing method of semi-steel tire material distribution map |
| CN117034505A (en) * | 2023-10-09 | 2023-11-10 | 深圳市常丰激光刀模有限公司 | Automatic dimension marking method for parameterized assembly design of three-dimensional mold structure |
-
2021
- 2021-12-28 CN CN202111623022.XA patent/CN114254413A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115027170A (en) * | 2022-07-25 | 2022-09-09 | 青岛轮云设计研究院有限责任公司 | Drawing method of semi-steel tire material distribution map |
| CN115027170B (en) * | 2022-07-25 | 2023-03-31 | 青岛轮云设计研究院有限责任公司 | Drawing method of semi-steel tire material distribution map |
| CN117034505A (en) * | 2023-10-09 | 2023-11-10 | 深圳市常丰激光刀模有限公司 | Automatic dimension marking method for parameterized assembly design of three-dimensional mold structure |
| CN117034505B (en) * | 2023-10-09 | 2024-01-26 | 深圳市常丰激光刀模有限公司 | Automatic dimension marking method for parameterized assembly design of three-dimensional mold structure |
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