CN110515355B - Method for making matrix data of automobile model - Google Patents
Method for making matrix data of automobile model Download PDFInfo
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- CN110515355B CN110515355B CN201910819576.3A CN201910819576A CN110515355B CN 110515355 B CN110515355 B CN 110515355B CN 201910819576 A CN201910819576 A CN 201910819576A CN 110515355 B CN110515355 B CN 110515355B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/4097—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/32—Operator till task planning
- G05B2219/32153—Exchange data between user, cad, caq, nc, capp
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Abstract
The invention relates to a method for manufacturing matrix data of an automobile model, which comprises the following steps: opening UGNX11 software, and importing model design data; (2) Entering a processing module of UGNX11 software, and establishing a virtual ball head cutter, wherein the diameter of the ball head cutter is virtually offset amount of 2+5mm; (3) processing and setting: setting the machining allowance as a negative offset, wherein the machining strategy is area milling; (4) According to the processing setting in the step (3), performing automatic programming calculation on the model design data by using the ball-end tool in the step (2); (5) Performing three-dimensional entity simulation processing on the automatic programming calculation result in the step (4) by using a virtual entity simulation function of UGNX11 software; (6) And (5) storing the result of the three-dimensional entity simulation processing in the step (5). The method reduces the manufacturing difficulty of the matrix data of the automobile model and improves the manufacturing efficiency.
Description
Technical Field
The invention relates to model design, in particular to a method for manufacturing base data of an automobile model.
Background
In the design and development of the automobile model, various model models and verification models need to be manufactured so as to verify and review the design of the automobile appearance model and the design of the interior trim, and determine the part of the design data (the general term of the design data of the appearance model and the design data of the interior trim) which needs to be modified or finally set. The manufacturing process of the automobile model comprises the following steps: 1. designing and manufacturing matrix data by using the model design data; 2. building a model matrix blank; 3. milling a model matrix blank on a five-axis numerical control machine tool according to matrix data to process a matrix of the model; 4. coating resin or oil sludge on the matrix of the model to prepare a model blank; 5. and milling a model blank on a five-axis numerical control machine tool according to the model design data of the automobile to process an automobile model.
The automobile models are various in types, large in quantity, large in size and expensive in price of main manufacturing materials. In order to reduce the manufacturing cost, as shown in fig. 1, the model blank 3 is usually designed as a built-in steel structure skeleton, foam is used as a substrate 1 in the middle, and the matrix 1 is coated with clay or pasty resin to form the model blank 3, wherein the manufacturing accuracy of the substrate 1 directly influences the thickness 5 of the model blank and influences the usage amount of the clay or pasty resin. Under the present conditions, the factor that most influences the manufacturing accuracy of the base 1 is the design accuracy of the base data 2.
The base data 2 are the model design data 4 with the same distance reduced, and the design requirements of the base data 2 are as follows: the model design data 4 is formed by inwardly biasing and reducing the offset 6 (over-cut) required by the design along the normal direction of the data plane. The basic data 2 is usually manufactured in CAD/CAM software, each data surface in the model design data 4 is subjected to inward reduction and bias operation, and the number of the finished automobile model is thousands of data surfaces, so that the method has the defect of complex operation; if the design data is scanned point cloud format data, the offset operation cannot be directly implemented, lines are firstly intercepted on the point cloud, then surface data are constructed through the lines, and then all the constructed surface data are subjected to offset reduction operation, so that base body data with the shape approximately similar to that of the model design data is constructed, and the design process is complicated.
Disclosure of Invention
The invention aims to provide a method for manufacturing automobile model matrix data so as to reduce the manufacturing difficulty of the automobile model matrix data.
The invention relates to a method for manufacturing base data of an automobile model, which comprises the following steps:
(1) Opening UGNX11 software, and importing model design data;
(2) Entering a processing module of UGNX11 software, and establishing a virtual ball head cutter, wherein the diameter of the ball head cutter is virtually offset amount of 2+5mm;
(3) And processing and setting: setting the machining allowance as a negative offset;
(4) According to the processing setting in the step (3), performing automatic programming calculation on the model design data by using the ball-end tool in the step (2);
(5) Performing three-dimensional entity simulation processing on the automatic programming calculation result in the step (4) by using a virtual entity simulation function of UGNX11 software;
(6) And (6) storing the result of the three-dimensional entity simulation processing in the step (5).
Further, the processing setting in step (3) further includes: the machining strategy is set to zone milling.
Further, the processing setting in step (3) further includes: steep and non-steep processing is set, the dividing angle is 45 degrees, and the step pitch is set to be 0.01mm of residual height value.
Further, step (4) is preceded by the following steps: dividing the whole vehicle into 5 processing areas, wherein the 5 processing areas are a front side of the vehicle, a rear side of the vehicle, a left side of the vehicle, a right side of the vehicle and an upper side of the vehicle respectively; and (4) the ball head cutter performs automatic programming calculation on the 5 machining areas respectively, and the automatic programming calculation results of the 5 machining areas are uniformly subjected to three-dimensional entity simulation machining by using a virtual entity simulation function of UGNX11 software in the step (5).
The method fully utilizes five functions of UGNX11 software, can simply and quickly obtain the matrix data of the automobile model, reduces the manufacturing difficulty of the matrix data of the automobile model, and improves the manufacturing efficiency of the matrix data of the automobile model.
Drawings
Fig. 1 is a schematic diagram of a prior art automobile model.
In the figure: 1-a substrate; 2-matrix data; 3, model blank; 4-model design data; 5-thickness of model blank; 6-offset.
Detailed Description
The invention will be further explained with reference to the drawings.
A manufacturing method of automobile model matrix data comprises the following steps:
(1) Opening UGNX11 software, and importing model design data;
(2) Dividing the whole vehicle into 5 processing areas based on model design data, wherein the 5 processing areas are a vehicle front side, a vehicle rear side, a vehicle left side, a vehicle right side and a vehicle upper side respectively, the vehicle front side comprises a front bumper area and a front grille area, the vehicle rear side comprises a rear bumper area and a rear door area, the vehicle left side comprises a front fender area, a rear door area, an A pillar area, a B pillar area and a C pillar area on the vehicle left side, the vehicle right side comprises a front fender area, a front door area, a rear door area, an A pillar area, a B pillar area and a C pillar area on the vehicle right side, and the vehicle upper side comprises a machine cover area, a front windshield area and a vehicle roof area;
(3) Entering a processing module of UGNX11 software, establishing a virtual ball head cutter, wherein the diameter of the ball head cutter is virtually offset amount of 2+5mm, and the offset amount value can be obtained through the technical requirement of model manufacturing;
(4) And processing and setting: setting the machining allowance as a negative offset, setting the machining strategy as zone milling, setting steep and non-steep machining, setting a boundary angle as 45 degrees, and setting the step pitch as a residual height value of 0.01mm;
(5) According to the processing setting in the step (4), performing automatic programming calculation on the 5 processing areas divided in the step (2) by the ball head cutter in the step (3);
(6) Uniformly performing three-dimensional entity simulation machining on the automatic programming calculation results of the 5 machining areas in the step (5) by using a virtual entity simulation function of UGNX11 software;
(7) And (5) storing the result of the three-dimensional entity simulation processing in the step (6) in an STL data format, and finishing the manufacturing of the matrix data.
Wherein, the processing setting of the step (4) can be solidified by manufacturing a processing template. Finally, in the whole process of manufacturing the matrix data of the model, a designer only needs to input the model design data, set the diameter of the ball head cutter and set the offset, the rest cutter path calculation and the three-dimensional entity simulation processing are automatically carried out by a computer, and finally, the simulation result is stored as the matrix data of the automobile model.
The invention fully utilizes five functions of UGNX11 software: 1. an automatic programming function; 2. the software processing module can automatically perform equidistant reduction processing on the model entity by setting the processing allowance to be a negative value; 3. A physical simulation processing function; 4. a function that the simulation processing result can be stored in an STL data format; 5. the use of a machining template simplifies the operation.
The invention does not need to consider the size and the number of the model design data surface, the complexity of the characteristics and the data format, has few manual operations, completes all the rest work except inputting the model design data, dividing the processing area and setting a small amount of parameters at one time in the whole process by automatic calculation of a computer, has high manufacturing precision and has the advantages of quick manufacturing and high efficiency. The method is particularly suitable for designing various large, ultra-large and extremely complex model matrix data, such as models of automobiles and yachts.
Claims (3)
1. A method for manufacturing automobile model matrix data is characterized by comprising the following steps:
(1) Opening UGNX11 software, and importing model design data;
(2) Entering a processing module of UGNX11 software, and establishing a virtual ball head cutter, wherein the diameter of the ball head cutter is virtually offset of 2+5mm;
(3) And processing and setting: setting the machining allowance as a negative offset;
(4) According to the processing setting in the step (3), performing automatic programming calculation on the model design data by using the ball-end tool in the step (2);
(5) Performing three-dimensional entity simulation processing on the automatic programming calculation result in the step (4) by using a virtual entity simulation function of UGNX11 software;
(6) Saving the result of the three-dimensional entity simulation processing in the step (5);
the method also comprises the following steps before the step (4): dividing the whole vehicle into 5 processing areas, wherein the 5 processing areas are a front side of the vehicle, a rear side of the vehicle, a left side of the vehicle, a right side of the vehicle and an upper side of the vehicle respectively; and (4) the ball head cutter performs automatic programming calculation on the 5 machining areas respectively, and the automatic programming calculation results of the 5 machining areas are uniformly subjected to three-dimensional entity simulation machining by using a virtual entity simulation function of UGNX11 software in the step (5).
2. The method for producing automotive model base data according to claim 1, characterized in that: the processing setting in step (3) further includes: the machining strategy is set to zone milling.
3. The method for producing automotive model base data according to claim 1, characterized in that: the processing setting in step (3) further includes: steep and non-steep processing is set, the cut-off angle is 45 °, and the step pitch is set to a residual height value of 0.01mm.
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| CN201910819576.3A CN110515355B (en) | 2019-08-31 | 2019-08-31 | Method for making matrix data of automobile model |
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| CN110515355B true CN110515355B (en) | 2022-10-11 |
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| JP2003241808A (en) * | 2002-02-21 | 2003-08-29 | Fuji Seiki Kk | Automatic programming system, automatic programming method, and automatic machining system |
| CN104200054A (en) * | 2014-09-26 | 2014-12-10 | 山东山大华天软件有限公司 | Gap design method used for automobile covering part die |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4615951B2 (en) * | 2004-09-30 | 2011-01-19 | 株式会社日立製作所 | Shape model creation method and structure optimization system |
| FR2910431B1 (en) * | 2006-12-22 | 2009-07-31 | Peugeot Citroen Automobiles Sa | METHOD FOR DESIGNING A MOTOR VEHICLE |
| DE112012002680T5 (en) * | 2011-06-29 | 2014-04-03 | Mitsubishi Electric Corp. | Machining simulation apparatus and method |
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|---|---|---|---|---|
| JP2003241808A (en) * | 2002-02-21 | 2003-08-29 | Fuji Seiki Kk | Automatic programming system, automatic programming method, and automatic machining system |
| CN104200054A (en) * | 2014-09-26 | 2014-12-10 | 山东山大华天软件有限公司 | Gap design method used for automobile covering part die |
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| 基于UG&斯沃仿真的一体化曲面加工研究;石浩哲;《机械研究与应用》;20160826(第04期);全文 * |
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