CN111931430A - Hydraulic manifold block fluid path optimization extraction method based on three-dimensional modeling software - Google Patents
Hydraulic manifold block fluid path optimization extraction method based on three-dimensional modeling software Download PDFInfo
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- CN111931430A CN111931430A CN202010689242.1A CN202010689242A CN111931430A CN 111931430 A CN111931430 A CN 111931430A CN 202010689242 A CN202010689242 A CN 202010689242A CN 111931430 A CN111931430 A CN 111931430A
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- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/28—Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]
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Abstract
A fluid path optimization extraction method of a hydraulic manifold block based on three-dimensional modeling software is carried out according to the following steps: step 1: establishing a three-dimensional model of the hydraulic manifold block in three-dimensional modeling software; step 2: establishing a space rectangular coordinate system on the basis of the three-dimensional model; and step 3: marking the circle center of an oil port of the hydraulic manifold block by using a 3D sketch function of drawing software; and 4, step 4: re-marking the circle centers in a new 3D sketch; and 5: connecting the centers of the communicated oil ports by using a straight line; step 6: performing fillet treatment on the right angle in the connecting straight line by using the curve; and 7: drawing a circle in a plane perpendicular to the connecting straight line; and 8: and scanning the connecting line into a pipeline by utilizing the scanning characteristics, and finishing the path optimization extraction. The invention can efficiently and accurately extract the flow form of the internal pipeline of the hydraulic manifold block, and lays a foundation for the 3D printing of the subsequent hydraulic valve manifold block.
Description
Technical Field
The invention relates to the technical field of intersection of hydraulic manifold block design and manufacture and 3D printing and manufacture, in particular to a hydraulic manifold block fluid path optimization extraction method based on three-dimensional modeling software.
Technical Field
In recent years, with the continuous development of science and technology, hydraulic manifold blocks are applied more and more, but due to the limitation of the traditional processing and manufacturing mode, the optimization method of the internal pipeline of the hydraulic manifold block is still performed on the basis of the traditional processing method, the typical structure inside the hydraulic manifold block still exists, and the pressure loss of the oil inlet and the oil outlet of the hydraulic manifold block cannot be changed to a great extent. The pressure loss of the oil inlet and the oil outlet can be effectively reduced based on the pore structure of the 3D printed hydraulic manifold block, but how to extract the optimized pipeline is the first problem of manufacturing the hydraulic manifold block based on the 3D printing.
Disclosure of Invention
The invention aims to provide a hydraulic manifold block fluid path optimization extraction method based on three-dimensional modeling software. The invention has the advantages of high-efficiency optimization and extraction of the hydraulic manifold block fluid path.
The technical scheme of the invention is as follows: a hydraulic manifold block fluid path optimization extraction method based on three-dimensional modeling software is carried out according to the following steps:
step 1: establishing a three-dimensional model of the hydraulic manifold block by using three-dimensional modeling software according to a hydraulic system schematic diagram;
step 2: establishing a virtual space rectangular coordinate system by taking a vertex of the three-dimensional model as an origin and three edges as X, Y and Z axes;
and step 3: marking the circle center of the oil port of the hydraulic manifold block by using points by utilizing the 3D sketch function of three-dimensional modeling software, and recording the circle center coordinate when marking the circle center coordinate;
and 4, step 4: newly building 3D sketch drawing points of the part in three-dimensional modeling software, and setting the coordinates of each point one by one as the coordinates marked in the previous step;
and 5: connecting points representing oil ports which should be the same by using a straight line in a 3D sketch;
step 6: performing fillet treatment on right angles existing in the connecting straight lines by using curves in the 3D sketch;
and 7: creating a new sketch, wherein the sketch is drawn in a plane vertical to the connecting straight line, and a circle is drawn, and the diameter of the circle is determined according to the original pipeline
And 8: and (5) scanning the connecting lines into the pipelines by using the scanning features by taking the circle drawn in the step 7 as an outline and taking the connecting lines optimized in the step 6 as a path.
In step 3 of the optimization method of the hydraulic valve integrated block based on 3D printing, when an arc runner is adopted,
the optimized decision variables are: a loss of pressure;
the optimization aims at: the pressure loss is minimal.
In conclusion, the invention has the characteristics of high-efficiency extraction and optimization of pipeline paths.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a three-dimensional model of the hydraulic manifold block being built;
FIG. 3 is a spatial rectangular coordinate system based on hydraulic manifold blocks;
FIG. 4 is a point calibration of the center of the circle of each oil port;
FIG. 5 is a circle center of each oil port shown by a dot;
FIG. 6 is a straight line connecting the center points of the communicating oil ports;
FIG. 7 is a schematic view of a right angle corner of a connecting wire being rounded;
FIG. 8 is a scan generation pipeline.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, 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.
The method for optimizing and extracting the fluid path of the hydraulic manifold block based on the three-dimensional modeling software in the embodiment is carried out according to the following steps with reference to fig. 1:
step S1: establishing a three-dimensional model of the hydraulic valve manifold block according to design requirements and a hydraulic system schematic diagram; see fig. 2;
step S2: when a three-dimensional model is established, one vertex of the hydraulic manifold block is arranged at an original point drawn by a draft as much as possible, so that a space rectangular coordinate system is automatically provided, the circle center coordinates of each oil port can be conveniently obtained subsequently, and the established space rectangular coordinate system is shown in figure 3;
step S3: in the 3D sketch function, the centers of the oil ports are marked by points, see fig. 4, and the coordinates of the points are recorded;
step S4: newly building a part in the three-dimensional modeling software, expressing the circle centers of all the oil ports by using points in a 3D sketch function, and inputting the coordinates of corresponding points, which is shown in a figure 5;
step S5: connecting the center points of the communicated oil ports by using a straight line in a 3D sketch function, wherein the path after the connection is finished is the same as the path of the original pipeline in principle, and the path is shown in figure 6;
step S6: e, performing round-angle corner formation on the right-angle connecting line in the step e by using a curve in the 3D sketch function to achieve the purpose of optimizing the pipeline path, and referring to fig. 7;
step S7: drawing a circle in a plane vertical to the connecting lines, wherein the radius of the circle is consistent with the inner diameter of the original pipeline, scanning the optimized connecting lines one by one into pipelines by utilizing the scanning function in the three-dimensional modeling software, and performing fillet treatment at the intersection of the pipelines by utilizing the fillet characteristic, wherein the radius of the fillet is as large as possible. See fig. 8.
Claims (3)
1. A fluid path optimization extraction method of a hydraulic manifold block based on three-dimensional modeling software is characterized by comprising the following steps:
step 1: establishing a three-dimensional model of the hydraulic manifold block by using three-dimensional modeling software according to a hydraulic system schematic diagram;
step 2: taking a vertex of the three-dimensional model of the hydraulic manifold block as an origin, and taking three edges as X, Y and Z axes to establish a virtual space rectangular coordinate system;
and step 3: marking the circle center of the oil port of the hydraulic manifold block by using points by utilizing the 3D sketch function of three-dimensional modeling software, and recording the circle center coordinate when marking the circle center coordinate;
and 4, step 4: newly building 3D sketch drawing points of the part in three-dimensional modeling software, and setting the coordinates of each point one by one as the coordinates marked in the previous step;
and 5: connecting points representing the centers of the oil ports which are communicated with each other by using straight lines in a 3D sketch;
step 6: performing fillet treatment on right angles existing in the connecting straight lines by using curves in the 3D sketch;
and 7: creating a new sketch, wherein the sketch is drawn in a plane vertical to the connecting straight line, and a circle is drawn, and the diameter of the circle is determined according to the original pipeline
And 8: and (5) scanning the connecting lines into the pipelines by using the scanning features by taking the circle drawn in the step 7 as an outline and taking the connecting lines optimized in the step 6 as a path.
2. The method for optimizing and extracting the fluid path of the hydraulic manifold block based on the three-dimensional modeling software as claimed in claim 1, wherein in the steps 2 and 3, a spatial rectangular coordinate system is established by the three-dimensional modeling software, and then the centers of the oil ports are marked by using a built-in 3D sketch function, so that an exact center coordinate is obtained.
3. The method for optimizing and extracting the fluid path of the hydraulic manifold block based on the three-dimensional modeling software as claimed in claim 1, wherein in the steps 4 and 5, a 3D sketch is newly created in the three-dimensional modeling software, the point coordinates determined in the step 3 are used for resetting the positions of the points, and the straight lines in the 3D sketch function of the three-dimensional modeling software are used for connecting the center points of the communicated oil ports to present the pipeline path.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010689242.1A CN111931430A (en) | 2020-07-16 | 2020-07-16 | Hydraulic manifold block fluid path optimization extraction method based on three-dimensional modeling software |
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| CN202010689242.1A CN111931430A (en) | 2020-07-16 | 2020-07-16 | Hydraulic manifold block fluid path optimization extraction method based on three-dimensional modeling software |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101493954A (en) * | 2009-02-26 | 2009-07-29 | 清华大学 | Three-dimensional modelling approach based on framework sketch drafting |
| CN103727084A (en) * | 2014-01-08 | 2014-04-16 | 天津大学 | Layout design method for hydraulic integrated block elements |
| CN111209696A (en) * | 2019-12-30 | 2020-05-29 | 浙江大学 | SLM (Selective laser melting) forming technology-based hydraulic integrated block path design method |
-
2020
- 2020-07-16 CN CN202010689242.1A patent/CN111931430A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101493954A (en) * | 2009-02-26 | 2009-07-29 | 清华大学 | Three-dimensional modelling approach based on framework sketch drafting |
| CN103727084A (en) * | 2014-01-08 | 2014-04-16 | 天津大学 | Layout design method for hydraulic integrated block elements |
| CN111209696A (en) * | 2019-12-30 | 2020-05-29 | 浙江大学 | SLM (Selective laser melting) forming technology-based hydraulic integrated block path design method |
Non-Patent Citations (1)
| Title |
|---|
| 马孟琪: "基于3D 打印的液压集成块自动优化设计", 《中国优秀硕士学位论文全文数据库（工程科技Ⅱ辑）》 * |
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