CN110287522B - Automatic generation and distribution method of screw holes on insert - Google Patents
Automatic generation and distribution method of screw holes on insert Download PDFInfo
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- CN110287522B CN110287522B CN201910400750.0A CN201910400750A CN110287522B CN 110287522 B CN110287522 B CN 110287522B CN 201910400750 A CN201910400750 A CN 201910400750A CN 110287522 B CN110287522 B CN 110287522B
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Abstract
The invention discloses an automatic generation and distribution method of screw holes on an insert, which comprises the following steps: inputting characteristics and parameters; sampling the characteristics; classifying the features; form matching; evaluating; and outputting parameters required by instantiating the screw holes. According to the intelligent design method, the intelligent design of the screw hole on the insert is realized by automatically identifying the relation between design elements, the shape, the position and the size of the screw hole on the insert and automatically generating the screw hole through calculation of a series of mathematical models according to different inputs without manual identification and design calculation, so that the repeated labor of designers is greatly eliminated, and the design efficiency is greatly improved.
Description
Technical Field
The invention relates to an intelligent die design and manufacturing technology, in particular to an automatic generation and distribution method of screw holes on an insert.
Background
In the existing mold design technology, the positions and the distribution of screw holes on an insert are generally designed manually by designers according to the process and industrial requirements, the sizes and the distribution of the screw holes are completely determined subjectively by manpower according to experience, meanwhile, a relatively perfect design scheme can be obtained after multiple modifications are often needed, and not only is the work repeatability of the designers high, the design efficiency low, but also time and labor are wasted.
Disclosure of Invention
In view of the above, the present invention provides a method for automatically generating and distributing a screw hole on an insert, so as to automatically generate and distribute the screw hole on the insert by automatically identifying the relationship between design elements, form and position dimensions, and automatic interactive parts.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an automatic generation and distribution method of screw holes on an insert is characterized by comprising the following steps:
A. inputting characteristics and parameters;
B. characteristic sampling: carrying out discrete sampling on the input features to obtain a feature group of the graph;
C. and (4) feature classification: obtaining the characteristic composition of the area to be distributed through a characteristic extraction algorithm;
D. morphological feature matching: acquiring possible distribution types of the area to be distributed by a method of comparing morphological feature description with a standard distribution template, and acquiring a solution set of the distribution of screw holes in an installation area according to the types;
E. evaluation: acquiring a solution set meeting constraint conditions through a screw hole arrangement algorithm; obtaining a comprehensive optimal solution by using an informed depth search method;
F. and (3) outputting: instantiating parameters required by the screw holes.
As a preferred embodiment, the characteristics and parameters of step a include a screw hole installation frame.
In some embodiments, the feature set in step B includes curvature and curvature change rate, normal, tangent or coordinate.
In some embodiments, the characteristic composition of the region to be distributed in step C includes a curve, a straight line, a rounded corner or a spline.
In other embodiments of the above method for automatically generating and distributing screw holes on an insert, the constraint conditions in step E include other work line constraints, distance constraints between adjacent screw holes, quantity constraints, or screw hole size constraints.
In other embodiments of the automatic generation and distribution method of the screw hole on the insert, the parameters required by the screw hole in step F include a position, a size, or a depth of a counter bore of the screw hole.
The realization scheme of the invention is to substitute the input original characteristic parameters into the mathematical model of the screw hole, and realize the change of parameter sets, graphic sets and the like required by the original design elements, the derivative design elements, parts through a series of processes of characteristic sampling, form matching calculation and the like. And then, performing data interaction with an interface of three-dimensional design software to generate a visible three-dimensional model of the part in the design software.
The invention has the following beneficial effects:
1) Compared with manual design: the generation and distribution of the screw holes on the insert can be automatically generated through calculation of a series of mathematical models according to different inputs without manual identification and design calculation, so that the repeated labor of designers is greatly eliminated, the design efficiency is improved, and the design correctness of products (and product processes) can be verified more quickly.
2) Compared with the traditional design: the change of the input elements is pulled to move the whole body, the invention only needs to bring in parameters for replacement, calculation and updating, and no additional stove is needed, thereby saving time and labor. The method can adapt to the randomness of original design input, the algorithm of each step has stronger adaptability, particularly the universality of the miniaturization and sampling algorithm is strong, for example, the extracted feature set for classification is obtained by a large amount of operations under a certain mathematical model, and the calculation (and the derivation based on the calculation) is suitable for most scenes in the mold design.
3) Ability to learn and upgrade itself: the reasonability of the shape and the position of the output part can be improved along with the supervision of a mathematical model. As the samples known to the system increase, the fitness and rationality of the system output will continue to improve through the learning process. The invention can continuously solve the problem of inadaptation of the system, and the knowledge accumulation is easier; the design method does not need manual trial and error, greatly improves the design efficiency and rationality, and simultaneously, the system can learn and accumulate knowledge at extremely high speed and efficiency, and can output the design result more quickly and better.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
Fig. 1 schematically shows a flow chart of a method for automatically generating and distributing a screw hole on an insert according to an embodiment of the present invention.
Referring to fig. 1, the automatic generation and distribution method of the screw holes on the insert includes the following steps:
step 101: inputting characteristics and parameters. For example: screw installation frame.
Step 102: characteristic sampling: the discrete sampling of the input features results in a feature set of the pattern, for example: curvature and rate of change of curvature, normal, tangent, coordinate.
Step 103: and (4) feature classification: and obtaining the characteristic composition (such as curve, straight line, fillet, spline line and the like) of the area to be distributed by a characteristic extraction algorithm.
Step 104: morphological feature matching: and acquiring possible distribution types of the areas to be distributed by a method of comparing morphological feature description with a standard distribution template, and acquiring a solution set of the distribution of the screw holes in the installation area according to the types.
Step 105: evaluation: acquiring a solution set which meets constraint conditions (such as other working line constraints, distance constraints between adjacent screw holes, quantity constraints and screw hole size constraints) by a screw hole arrangement algorithm; and obtaining a comprehensive optimal solution by using an informed deep search method.
For example: a1 work line constraint
b1 balance of work line
a2, distance constraint between adjacent screw holes
b2 balance value of distance between adjacent screw holes
a3 quantity constraint
b3 trade-off value of quantity
a4 screw hole size constraint
b4 balance of screw hole size
K = f (a 1, a2, a3, a4, b1, b2, b3, b4... K): and synthesizing the weight values.
Step 106: and (3) outputting: parameters required to instantiate a screw, for example: screw hole location, size, counterbore depth, etc.
The discrete sampling, feature extraction algorithm, morphological feature description and standard distribution template comparison, and the informed depth search method mentioned in this example are all the prior arts well known to those skilled in the art.
What has been described above are merely some of the embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept herein, and it is intended to cover all such modifications and variations as fall within the scope of the invention.
Claims (5)
1. An automatic generation and distribution method of screw holes on an insert is characterized by comprising the following steps:
A. inputting characteristics and parameters; the characteristics and parameters comprise a screw hole mounting frame;
B. characteristic sampling: carrying out discrete sampling on the input features to obtain a feature group of the graph;
C. and (4) feature classification: obtaining the characteristic composition of the area to be distributed through a characteristic extraction algorithm;
D. morphological feature matching: obtaining possible distribution types of the area to be distributed by a method of comparing morphological characteristic description with a standard distribution template, and obtaining a solution set of the distribution of the screw holes in the installation area according to the types;
E. evaluation: acquiring a solution set meeting constraint conditions through a screw hole arrangement algorithm; obtaining a comprehensive optimal solution by using an informed depth search method;
F. and (3) outputting: instantiate the parameters required for the screw.
2. The method for automatically generating and distributing screw holes on an insert according to claim 1, wherein the feature set in step B comprises curvature and curvature change rate, normal, tangent or coordinate.
3. The method for automatically generating and distributing the screw holes on the inserts according to claim 1, wherein the characteristic composition of the areas to be distributed in the step C comprises a curve, a straight line, a rounded corner or a spline line.
4. The method for automatically generating and distributing screw holes on an insert according to claim 1, wherein the constraint conditions in step E include other working line constraints, distance constraints between adjacent screw holes, quantity constraints or screw hole size constraints.
5. The method for automatically generating and distributing a screw hole in an insert according to claim 1, wherein the parameters required for the screw hole in step F include screw hole position, size or counterbore depth.
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| CN201910400750.0A CN110287522B (en) | 2019-05-15 | 2019-05-15 | Automatic generation and distribution method of screw holes on insert |
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| CN201910400750.0A CN110287522B (en) | 2019-05-15 | 2019-05-15 | Automatic generation and distribution method of screw holes on insert |
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| CN110287522B true CN110287522B (en) | 2023-04-18 |
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Citations (3)
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| TW200951830A (en) * | 2008-06-06 | 2009-12-16 | Hon Hai Prec Ind Co Ltd | System and method for examining the error-preventive design of punches and inserts |
| CN109271726A (en) * | 2018-09-05 | 2019-01-25 | 重庆创速工业有限公司 | A kind of design implementation method of work mold insert |
| CN109726424A (en) * | 2018-09-05 | 2019-05-07 | 重庆创速工业有限公司 | A kind of design implementation method of punching module |
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| US7555157B2 (en) * | 2001-09-07 | 2009-06-30 | Geoff Davidson | System and method for transforming graphical images |
| US7065478B2 (en) * | 2001-12-31 | 2006-06-20 | Ugs Corp. | Computer-aided progressive die design system and method |
| CN101201864A (en) * | 2006-12-14 | 2008-06-18 | 英业达股份有限公司 | System and method for laying element |
| CN102708249B (en) * | 2012-05-10 | 2014-05-21 | 三一集团有限公司 | Method and system for product modular configuration |
| CN103020307A (en) * | 2013-01-04 | 2013-04-03 | 哈尔滨工程大学 | Non-dominated solution sorting method based on depth search and high-frequency mutation strategy |
| CN108733935B (en) * | 2018-05-24 | 2023-06-30 | 河北建设集团股份有限公司 | Steel structure hole making process |
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| TW200951830A (en) * | 2008-06-06 | 2009-12-16 | Hon Hai Prec Ind Co Ltd | System and method for examining the error-preventive design of punches and inserts |
| CN109271726A (en) * | 2018-09-05 | 2019-01-25 | 重庆创速工业有限公司 | A kind of design implementation method of work mold insert |
| CN109726424A (en) * | 2018-09-05 | 2019-05-07 | 重庆创速工业有限公司 | A kind of design implementation method of punching module |
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