CN114905895B - Method for automatically arranging embedded nails in tire tread pattern - Google Patents
Method for automatically arranging embedded nails in tire tread pattern Download PDFInfo
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- CN114905895B CN114905895B CN202210748955.XA CN202210748955A CN114905895B CN 114905895 B CN114905895 B CN 114905895B CN 202210748955 A CN202210748955 A CN 202210748955A CN 114905895 B CN114905895 B CN 114905895B
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000011295 pitch Substances 0.000 claims description 48
- 238000011161 development Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 6
- 238000012163 sequencing technique Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/14—Anti-skid inserts, e.g. vulcanised into the tread band
- B60C11/16—Anti-skid inserts, e.g. vulcanised into the tread band of plug form, e.g. made from metal, textile
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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
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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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- Pure & Applied Mathematics (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The application discloses a method for automatically arranging nails in tire tread patterns, belongs to the field of tire design, and solves the problem of overhigh labor cost and time cost caused by manual calculation and manual drawing in the design of the nail positions of snow tires in the prior art. In the technical scheme, in the product environment based on CATIA software, the program places the insert pin patterns on points to be placed in a configuration table mode, and automatically calculates the total number of insert pins in a certain range. If the positions of the inserts need to be adjusted, the inserts can be driven to generate a graph through the configuration table quickly, and the total number of the inserts in a certain range is calculated again automatically and output. The application has the advantages that: the method does not need to generate a single model with the embedded nails in advance, and then carries out calculation or adjustment by combining and assembling, so that the rapid and automatic generation of the embedded nails of the snow tire is realized, and the design time and the design cost are saved.
Description
Technical Field
The invention relates to a method for automatically arranging embedded nails in tire tread patterns, and belongs to the field of tire design.
Background
The snow tire is specially designed for winter conditions, such as areas with low ice and snow climate and air temperature, and is another option except an anti-skid chain, and metal nails are embedded on the tread of the snow tire, so that the grip of the tire on snow or ice can be enhanced, the skid degree can be greatly reduced, and the normal running of a vehicle can be ensured although the skid can not be ensured. The placement position of the embedded nails on the tread of the snowy tire is changed along with the change of the patterns of the snowy tire so as to achieve the best anti-skid effect.
At present, for the arrangement of the nails of the snowfield tyre, a design engineer manually adds the nails on models with different pitches, calculates the total number of the nails in a certain range after assembly, and if the regulation requirement is not met, the engineer is required to manually adjust the positions of the nails on each model. The arrangement of the nails of the snow tire is increased along with the complexity of the patterns and the regulation related regulation constraint of the number of the nails within a certain range, the design engineer manually draws and sorts the nails to cause great workload, the arrangement of the nails of the snow tire is increased along with the complexity of the patterns, the time for assembling and calculating the number of the nails of the snow tire can be increased in multiple, and the labor cost and the time cost are too high, so that the design work efficiency of the snow tire is affected.
Disclosure of Invention
Aiming at the technical problems of high labor cost and time cost caused by manual calculation and manual drawing in the design of the positions of the studs of the snow tires in the prior art, the invention provides the method for automatically arranging the studs in the tire tread patterns, which realizes the rapid and automatic generation of the sequencing of the studs of the snow tires and saves the design time and the design cost.
In order to solve the technical problems, the technical scheme adopted by the invention is that a method for automatically arranging embedded nails in tire tread patterns is characterized in that: the method comprises the following steps:
s1) generating a plurality of product files with pattern pitch patterns of insert pin placement positions through CATIA software, and generating product files with pattern development patterns of the whole circumference of a tire; making standardized naming for the point of the insert discharging position in the product file with the pattern pitch graph of the insert placing position;
s2) generating a setting position configuration table of the nails, and arranging the nails of the specific style at the marked positions according to the setting position configuration table of the nails;
s3) after the placement of the insert pin is finished, acquiring the coordinate of the insert pin; sequentially starting to calculate the total number of the nails in a certain range by the first nail in the starting direction;
s4) in the step S3), if the calculated total quantity of the nails does not exceed the quantity value specified by the regulations, taking the setting position configuration table of the nails in the step S2) as a final setting designated position ordering configuration table; otherwise, after modifying the table of positions of placement of the staples in step S2), repeating the processes of steps S2) to S3) until the calculated total number of staples does not exceed the number value specified by the regulations.
In the step S1), a single pattern pitch file with the positions where the studs are placed is drawn by CATIA software, and a pattern pitch file with a plurality of positions where the studs are placed is expanded and generated according to the single pattern pitch file by the expansion rule of the pattern pitch design.
Optimally, in the above method for automatically arranging the nails in the tread pattern of the tire, in step S1), the generated pattern pitch file is assembled through a product module of CATIA software; firstly, loading a plurality of generated pattern pitch files with insert pin discharge position points in a product environment, arranging all generated pattern pitch files into a pattern development diagram of the whole circumference of a tire according to the arrangement sequence of patterns through a certain constraint relation, and outputting a product file with the pattern development diagram of the whole circumference of the tire.
Preferably, in the above method for automatically arranging the studs in the tread pattern of the tire, in step S2), the process of generating the stud placement position configuration table includes:
after the product file of the pattern development diagram of the whole circumference of the finished tire is traversed, the file names of the product structure tree are sequentially grabbed into a table according to the arrangement sequence of pattern pitches and the format of the table is configured according to the placement positions of the inserts in the product design environment of CATIA; and traversing the names of the points of the insert placement positions in all files on the product structural tree, and placing the names of the points which acquire standardized naming in a table according to the format of a configuration table.
Preferably, in the above method for automatically arranging the studs in the tread pattern of the tire, in step S2), the process of arranging the studs of the specific style at the marked positions according to the stud placement position configuration table includes:
manually confirming which points on the pitch are arranged with the nails, marking, and confirming after finishing; and calling the insert template and placing the insert pattern on the marked position point in the table according to the insert discharging position configuration table.
Optimally, in the above method for automatically arranging the inserts in the tread pattern of the tire, in step S3), the total number of inserts in a certain range is calculated by sequentially starting with the first insert in the starting direction, wherein:
and taking the origin of the SAE coordinate system as a starting point, taking the Y-axis direction of the SAE coordinate system as a starting direction, sequentially calculating the total number of the inserts within a certain distance range from the first insert, and outputting the result.
Optimally, in the above method for automatically arranging the nails in the tread pattern of the tire, in the step S1), the constraint relation refers to Coincidence Constraint command, coincidence Constraint command, namely coaxial constraint command in CATIA assembly environment; under the coaxial constraint command, inputting a pitch arrangement sequence to automatically arrange the patterns.
Optimally, in the method for automatically arranging the inserts in the tread pattern of the tire, in the step S3), one insert is selected to start calculating the total number S of inserts in each 1 meter of the inserts in the initial direction; and traversing all the nails to calculate, wherein the maximum value of the total number S finally calculated is taken as the total number of the nails.
The application has the advantages that: the technical scheme of the application is based on the CATIA software Product environment. This solution does not require the advance generation of a single model with the pins, by placing the pin pattern on the points to be placed in a configuration table in a product environment based on CATIA software, and automatically calculating the total number of pins in a certain range. The quick automatic generation of the snow tire insert nail sequence is realized, and the technical problems of high labor cost and time cost caused by manual calculation and manual assembly are solved.
Drawings
FIG. 1 is a flow chart of an automatic generation method of the arrangement of nails in a tread pattern of a snowfield tire of the present application;
FIG. 2 is a named schematic view of the placement of studs in a single tire pitch;
FIG. 3 is a table of placement locations for a program calling the insert template and placing an insert pattern on a marked location point in the table according to the insert discharge location configuration table;
fig. 4 is an assembly view of the assembled insert.
Detailed Description
The technical features of the present invention are further described below with reference to the accompanying drawings and the specific embodiments.
As shown in fig. 1, the invention is a method for automatically arranging nails in a tire tread pattern, comprising the following steps:
s1) generating a plurality of product files with pattern pitch patterns of insert pin placement positions through CATIA software, and generating product files with pattern development patterns of the whole circumference of a tire; making standardized naming for the point of the insert discharging position in the product file with the pattern pitch graph of the insert placing position;
s2) generating a setting position configuration table of the nails, and arranging the nails of the specific style at the marked positions according to the setting position configuration table of the nails;
s3) after all the nails are placed, acquiring coordinates of all the nails; sequentially starting to calculate the total number of the nails in a certain range by the first nail insert in the starting direction, and outputting the calculated total number; comparing the calculated total number with the regulation rule, judging, and outputting a judging result;
s4) in the step S3), if the output judging result does not exceed the regulation, taking the setting position configuration table of the nails in the step S2) as a final setting designated position ordering configuration table;
in step S3), if the output determination result exceeds the regulation, the process returns to step S2), and after the setting position configuration table of the insert in step S2) is modified, the processes of step S2) to step S3) are repeated until the determination result does not exceed the regulation.
The specific operation of step S1) is as follows: firstly, an engineer draws a single pattern pitch with insert pin placement position points through CATIA software; the standard naming is performed on the position points needing to be nailed, the naming mode is different from the naming mode of the original function points of the CATIA software, and as shown in fig. 2, the position points needing to be nailed in a single pattern pitch are named as PT1, PT2.
And (3) expanding the designed single pattern pitch file with the insert pin placement position points into a file with a plurality of pattern pitches with the insert pin placement position points according to the expansion rule of the pattern pitch design. While meeting the regulations, the positions of the insert nails in the other extended pattern pitches may be different on the premise that engineers ensure even distribution as much as possible in design.
The generated pattern pitch files are assembled through a product module of the CATIA, firstly, a plurality of generated pattern pitch files with insert pin discharging position points are loaded in the product environment of the CATIA, and are arranged into a pattern unfolding diagram of the whole circumference of the tire according to the arrangement sequence of patterns through a certain constraint relation, and the product files with the patterns arranged in a whole circle are generated.
Constraint relationship herein refers to a "Coincidence Constraint" command in a CATIA assembly (product) environment, i.e., a coaxial constraint command. At this time, all the pattern pitch patterns can be arranged in the pitch arrangement order for manual constraint arrangement. This is based on the small function of the CATIA assembly (product) environment, and the designer can implement automatic arrangement of graphics by simply inputting the pitch arrangement order.
In step S2), after the product files are arranged in the entire circle of the pattern completed in step S1). Under the product design environment of CATIA, a designer operates software to enable a program to traverse the file names of the product structural tree, and sequentially grasp the sequences of the file names on the structural tree into a table according to the format of a configuration table, wherein the sequences are according to the arrangement sequence of pattern pitches. Meanwhile, the program traverses the names of the points of the insert placement positions in all files on the product structural tree and places the names of the obtained standardized named points PT1, PT2.
The designer confirms which points on the pitch the nails are discharged at and marks, and the designer can confirm after completion. The program calls the insert template and places the insert pattern on the marked location points in the table according to the insert discharge location configuration table. As shown in fig. 3, the example in fig. 3 is that the snow tire is composed of 20 pitches, each of which is denoted by P1. The placement points of the nails on each pitch are represented by PT1 to PT4, and the pattern of the nails is placed directly on the point to be placed on each pitch by driving with a configuration table of the placement positions of the nails.
It should be noted that, the placement position and the placement number of the insert pins at each pitch have a relation with the size of the pattern pitch and the requirement of the rule, so the number of the insert pins placed at each pitch is not necessarily the same, and the placement positions are not necessarily the same.
In step S3), after finishing step S2), all the nail insert patterns are placed. The coordinates of all the inserts (or the points where the inserts are placed) are obtained by a program. And (5) taking the origin of the SAE coordinate system of the tire as a starting point, and sequencing by taking the forward direction of the Y direction in the origin direction as a starting direction. The first insert sequentially starts to calculate the total number of inserts within a certain range and outputs the total number.
For example, the assembly diagram of the assembled nails shown in fig. 4 starts to calculate the total number of the nails per 1 meter, starts to calculate the total number of the nails per 1 meter with the nail 1, starts to calculate the total number of the nails per 1 meter with the nail 2, starts to calculate the total number of the nails per 1 meter with the nail 3, starts to calculate the total number of the nails per 1 meter with the nail 4, starts to calculate the total number of the nails per 1 meter with each nail in turn, and finally outputs the maximum number of the nails calculated with which nail starts to be the maximum number of the nails.
Comparing the result with the rule and judging whether the setting nail ordering configuration table needs to be adjusted. If the positions of the nails need to be adjusted, a designer needs to automatically acquire the current nail arrangement information through a program again and pop up configuration table information, the positions of the nails needing to be changed are adjusted in the acquired current nail arrangement information and pop up configuration table, and after the position adjustment is confirmed, the program automatically refreshes and generates the latest graph.
And continuing the processes from the step S2) to the step S3) on the basis of the latest generated graph file until the generated graph meets the design requirement of the regulations, and finishing the layout design of the embedded nails.
The process does not need to generate pitch and pattern combination models with different insert pin numbers in advance, and then generates an output model in a combined assembly mode, and meanwhile, the arrangement of the insert pins can be quickly adjusted and refreshed in a configuration table mode, so that the design process of a designer is simplified.
It should be understood that the above description is not intended to limit the invention to the particular embodiments disclosed, but to limit the invention to the particular embodiments disclosed, and that various changes, modifications, additions and substitutions can be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (4)
1. A method for automatically arranging embedded nails in tire tread patterns is characterized in that: the method comprises the following steps: s1) generating a plurality of product files with pattern pitch patterns of insert pin placement positions through CATIA software, and generating product files with pattern development patterns of the whole circumference of a tire; making standardized naming for the point of the insert discharging position in the product file with the pattern pitch graph of the insert placing position;
s2) generating a setting position configuration table of the nails, and arranging the nails of the specific style at the marked positions according to the setting position configuration table of the nails;
s3) after the placement of the insert pin is finished, acquiring the coordinate of the insert pin; sequentially starting to calculate the total number of the nails in the set range by the first nail in the initial direction;
s4) in the step S3), if the calculated total quantity of the nails does not exceed the quantity value specified by the regulations, taking the setting position configuration table of the nails in the step S2) as a final setting designated position ordering configuration table; otherwise, after modifying the setting position configuration table of the insert in the step S2), repeating the processes of the steps S2) to S3) until the calculated total number of the inserts does not exceed the number value specified by the regulations;
in the step S1), a single pattern pitch file with insert pin placement position points is drawn through CATIA software, and a plurality of pattern pitch files with insert pin placement position points are generated in an expanding mode according to the single pattern pitch file and the expanding rule of pattern pitch design;
in step S1), assembling the generated pattern pitch file through a product module of CATIA software; firstly, loading a plurality of generated pattern pitch files with insert pin discharge position points in a product environment, arranging all generated pattern pitch files into a pattern development diagram of the whole circumference of a tire according to the arrangement sequence of patterns through a set constraint relation, and outputting a product file with the pattern development diagram of the whole circumference of the tire;
in step S2), the process of generating the insert placement position configuration table includes: after the product file of the pattern development diagram of the whole circumference of the finished tire is traversed, the file names of the product structure tree are sequentially grabbed into a table according to the arrangement sequence of pattern pitches and the format of the table is configured according to the placement position of the inlaid nails in the product design environment of the CATIA; traversing the names of the points of the insert pin placement positions in all files on the product structure tree, and placing the names of the points which are obtained and standardized in a table according to the format of a configuration table;
in step S1), the constraint relation refers to Coincidence Constraint command, coincidence Constraint command, i.e. coaxial constraint command, in CATIA assembly environment; under the coaxial constraint command, inputting a pitch arrangement sequence to automatically arrange the patterns.
2. A method of automatically arranging studs in a tire tread pattern as in claim 1, wherein: in the step S2), the process of arranging the inserts of the specific style at the marked positions according to the insert placement position configuration table includes: manually confirming which points on the pitch are arranged with the nails, marking, and confirming after finishing; and calling the insert template and placing the insert pattern on the marked position point in the table according to the insert discharging position configuration table.
3. A method of automatically arranging studs in a tire tread pattern as in claim 1, wherein: in step S3), the total number of staples within the set range is calculated starting with the first staple in the starting direction in sequence, wherein: and taking the origin of the SAE coordinate system as a starting point, taking the Y-axis direction of the SAE coordinate system as a starting direction, sequentially calculating the total number of the inserts within a set distance range from the first insert, and outputting the result.
4. A method of automatically arranging studs in a tire tread pattern as in claim 3, wherein: in step S3), selecting one of the inserts to start calculating the total number S of inserts per 1 meter in the initial direction; and traversing all the nails to calculate, wherein the maximum value of the total number S finally calculated is taken as the total number of the nails.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210748955.XA CN114905895B (en) | 2022-06-28 | 2022-06-28 | Method for automatically arranging embedded nails in tire tread pattern |
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| CN202210748955.XA CN114905895B (en) | 2022-06-28 | 2022-06-28 | Method for automatically arranging embedded nails in tire tread pattern |
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| CN114905895B true CN114905895B (en) | 2023-12-26 |
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