CN113830203B - High-precision automobile model manufacturing method - Google Patents
High-precision automobile model manufacturing method Download PDFInfo
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- CN113830203B CN113830203B CN202111241340.XA CN202111241340A CN113830203B CN 113830203 B CN113830203 B CN 113830203B CN 202111241340 A CN202111241340 A CN 202111241340A CN 113830203 B CN113830203 B CN 113830203B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Abstract
The invention provides a high-precision automobile model manufacturing method, which comprises the following steps: the method comprises the steps of data preparation, namely selecting an upper body interface and a lower body interface of a side frame of an automobile model according to the acquired fairing initial edition data, and dividing the automobile model into a roof part and a body part; a step of manufacturing the roof part, wherein a blank of the roof part is manufactured according to a structural design; a manufacturing step of the vehicle body part, manufacturing a blank of the vehicle body part according to a structural design; assembling, namely assembling the roof part and the body part, and pouring an exterior decoration display surface; and an integral processing step of integrally processing the roof part and the body part after the assembling step to form an automobile model. The invention eliminates the error of milling and assembling the side frame and the roof single piece, ensures the precision of the whole vehicle model, and simplifies the model design and manufacturing steps, thereby shortening the manufacturing period of the whole model and reducing the development cost.
Description
Technical Field
The invention mainly relates to the field of automobiles, the field of industrial design models and the like, in particular to a high-precision automobile model manufacturing method.
Background
In the automobile research and development process, some high-precision models need to be manufactured to meet different stages of data verification. The data control model is used for manufacturing an entity 1 physical model corresponding to data according to fairing data, and is used for inspecting the surface quality of the fairing data and evaluating various gaps and arc transition conditions of a whole automobile, wherein the fairing data is the basis of mold opening structure data and is an important reference model for quality evaluation after formal mass production of automobiles. Therefore, the data control model has very high requirements on the precision of parts, the whole vehicle assembly needs to be controlled to be +/-0.4 mm, the precision of a single part needs to be controlled to be +/-0.15 mm, and the requirements on fillets, gaps and fall among the parts are controlled to be +/-0.1 mm. The quality detection method of the model is to obtain three-dimensional data after the physical model is scanned by blue light, the three-dimensional data is compared with fairing data, disqualification is represented when the data exceeds 0.4mm, and the qualification rate of the exterior decoration model of the whole vehicle generally reaches 99%. The display surface of the data control model is formed by milling a polyurethane material (commonly known as wood), and splicing materials are not allowed on the surface of a single part, otherwise, the paint quality of the display surface is reduced, and the evaluation effect of the whole model is influenced finally.
At present, there are two main manufacturing methods for the data control model.
The first method is to directly profile-cast parts such as a polyurethane side frame, a car roof and the like, and assemble the parts after finishing, and the method has the defects that the part structure is large in deformation, the precision cannot be guaranteed, and the method is not suitable for large parts such as the side frame, the car roof and the like.
The second method, similar to patent publication No.: CN107377941A, the name of the invention is: the method for manufacturing the data control model part aims at the numerical control part and specifically comprises the following steps: a data preparation step, namely acquiring original edition fairing data, taking a data surface of the original edition fairing data as a basis, carrying out inward offset to obtain an offset surface, and determining the structure of the part according to the offset surface; a skeleton manufacturing step, namely manufacturing a skeleton blank according to the determined skeleton structure and milling to form a skeleton; a casting step, namely casting a casting layer on the framework to form a part blank; a primary surface processing step, namely bonding an installation block on the surface of the casting layer, processing the installation block to obtain an installation surface, and performing finish machining on the framework installation surface; a stress releasing step, namely performing rough machining on the surface of the casting layer and releasing stress; and a surface processing step is carried out again, and the surface of the casting layer is subjected to finish processing. Although the method can greatly reduce the deformation of parts and ensure the model precision through the strength of the cast aluminum core, the method has the defects that the framework design and the manufacturing are complex, the cast aluminum core data need to be designed firstly, two side walls and a roof cast aluminum framework need to be manufactured, polyurethane substitute wood needs to be bonded in the partial area of the framework, then casting materials are milled, the manufacturing period of the whole model is prolonged, and the cost is higher and the whole vehicle has large mass due to the addition of three cast aluminum frameworks.
Disclosure of Invention
It is to be understood that both the foregoing general description and the following detailed description of the present disclosure are exemplary and explanatory and are intended to provide further explanation of the disclosure.
In order to overcome the defects, the invention creatively provides a method for manufacturing a high-precision automobile model, which separates a side frame into an upper part and a lower part, wherein the upper part belongs to an automobile roof, the lower part belongs to an automobile door, and the automobile roof and an automobile body are assembled together after being milled respectively and integrally cast.
In order to solve the technical problem, the invention provides a high-precision automobile model manufacturing method, which is characterized by comprising the following steps:
the method comprises the steps of data preparation, namely selecting an upper body interface and a lower body interface of a side frame of an automobile model according to the acquired fairing initial edition data, and dividing the automobile model into a roof part and a body part;
a step of manufacturing the roof part, wherein a blank of the roof part is manufactured according to a structural design;
a manufacturing step of the vehicle body portion, manufacturing a blank of the vehicle body portion according to a structural design;
assembling, namely assembling the roof part and the body part, and pouring an exterior decoration display surface;
and an integral processing step of integrally processing the roof part and the body part after the assembling step to form an automobile model.
Preferably, the present invention further provides a high-precision automobile model manufacturing method, wherein in the data preparation step, the boundary surfaces of the upper and lower bodies of the side frames are the positions where the end faces of the upper and lower body segments of the automobile model are the smallest.
Preferably, the present invention further provides a high-precision automobile model manufacturing method, characterized in that the roof portion manufacturing step further comprises,
the roof portion includes a roof trim data surface, a roof mounting surface, and a roof parts mounting surface, the roof trim data surface and the roof mounting surface and side seal mounting holes are milled to zero positions, the roof trim data surface is inwardly offset by a first offset distance, and the parts mounting surface is outwardly offset by a second offset distance.
Preferably, the present invention further provides a high-precision automobile model manufacturing method, characterized in that said automobile body part manufacturing step further comprises,
the vehicle body part comprises a vehicle door outer decoration data surface, a vehicle body mounting surface, an inner decoration instrument board mounting surface, an inner decoration hatrack mounting surface and a vehicle body spare part mounting surface, wherein the vehicle body mounting surface, the inner decoration instrument board mounting surface and the inner decoration hatrack mounting surface are milled to zero positions, the vehicle door outer decoration data surface is inwards offset by a third offset distance, and the spare part mounting surface is outwards offset by a fourth offset distance.
Preferably, the present invention further provides a high-precision automobile model manufacturing method, wherein in the assembling step, the pin-hole connection is included between the roof mounting surface and the body mounting surface.
Preferably, the invention further provides a high-precision automobile model manufacturing method, which is characterized in that the automobile body part mounting surface comprises a door guard plate, a door handle and a tail lamp mounting surface.
Preferably, the invention further provides a high-precision automobile model manufacturing method, which is characterized in that the roof part mounting surface comprises mounting surfaces of a roof part luggage rack, an antenna, a side sealing strip and a column cover plate.
Preferably, the present invention further provides a high-precision automobile model manufacturing method, wherein the first to fourth offset distances are changed in accordance with the fairing data plane.
Preferably, the present invention further provides a high-precision automobile model manufacturing method, wherein the first to fourth offset distances are in a range of 0 to 100mm.
Preferably, the invention further provides a high-precision automobile model manufacturing method, which is characterized in that the integrated processing step further comprises rough processing and finish processing, wherein the rough processing comprises standing at normal temperature for at least 24 hours to eliminate the stress in the casting material, and the finish processing comprises milling processing to meet the precision requirement.
Preferably, the invention further provides a high-precision automobile model manufacturing method, which is characterized in that the automobile body part manufacturing step further comprises the step of fixing the side frame sealing strip, the four-door external pressure decorative strip and the pillar external decorative cover plate in a screw fastening mode.
In summary, the technical scheme adopted by the invention is as follows: the narrowest place of the side frames is disassembled, the lower body is distributed to the vehicle body part, and the upper body is distributed to the vehicle roof part. The car body part mainly comprises a front door, a rear door and a side frame lower body; the roof part mainly comprises a rear cover upper body, a side frame upper body and a roof, and the roof part comprises a roof inner, a rear cover inner and a column inner besides an outer decoration. And respectively processing the car roof part and the car body part, then assembling the car roof part and the car body part together to form a closed frame-shaped structure, integrally pouring a display surface, and finally integrally milling a whole car model.
Compared with the prior art, the invention has the following advantages:
the method eliminates the error of milling and assembling the side frame and the roof single piece, ensures the precision of the whole vehicle model, and simplifies the model design and manufacturing steps, thereby shortening the manufacturing period of the whole model and reducing the development cost.
Drawings
Embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. Further, although the terms used in the present disclosure are selected from publicly known and used terms, some of the terms mentioned in the specification of the present disclosure may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Furthermore, it is required that the present disclosure is understood, not simply by the actual terms used but by the meaning of each term lying within.
The above and other objects, features and advantages of the present invention will become apparent to those skilled in the art from the following detailed description of the present invention with reference to the accompanying drawings.
FIG. 1 is an operational flow diagram for implementing the high precision automobile model manufacturing method of the present invention;
FIG. 2 is a schematic illustration of a cut in manufacture using the method of the present invention;
fig. 3 illustrates a side view of the roof portion 100;
FIG. 4 illustrates an isometric view of the roof portion 100;
FIG. 5 is a schematic illustration of a tooling support for the roof portion 100;
FIG. 6 illustrates an isometric view of the body portion 200;
fig. 7 illustrates an assembled isometric view of the roof portion 100 and body portion 200.
Reference numerals
1-side frame upper and lower body interface
2-roof mounting surface
3-vehicle roof interior trim data surface
4-side surface sealing strip mounting hole
5-vehicle roof exterior data surface
6-vehicle roof parts mounting surface
7-processing support column
8-inner decoration instrument board mounting surface
9-vehicle body mounting surface
10-interior hatrack mounting surface
11-door external pressing decorative strip mounting hole
12-vehicle door outer decoration data surface
13-vehicle door parts mounting surface
14-wheel fender
15-A column
16-B column
100-roof part
200-vehicle body part
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only examples or embodiments of the application, from which the application can also be applied to other similar scenarios without inventive effort for a person skilled in the art. Unless otherwise apparent from the context, or otherwise indicated, like reference numbers in the figures refer to the same structure or operation.
As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present application, it is to be understood that the directions or positional relationships indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the directions or positional relationships shown in the drawings, and are for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited. Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.
Flow charts are used herein to illustrate operations performed by systems according to embodiments of the present application. It should be understood that the preceding or following operations are not necessarily performed in the exact order in which they are performed. Rather, various steps may be processed in reverse order or simultaneously. Meanwhile, other operations are added to or removed from these processes.
Referring to fig. 1, the flow chart describes the operation steps of the method, and specifically relates to the following 5 steps:
s101: step one, a data preparation stage.
According to the acquired fairing initial edition working state data, determining the interfaces of the upper part and the lower part of the side frame, collecting the inner decoration freezing data, and finishing the structural design of the roof part and the structural design of the vehicle body part, wherein the installation and the positioning of other parts need to be considered at the moment.
Fig. 2 shows a schematic cutting diagram for the use of the method according to the invention in the manufacture of a model of a motor vehicle.
According to the original edition of the fairing data, an interface 1 of the upper and lower bodies of the side frame is selected, and the upper part of the interface 1 is divided into a roof part, and the lower part of the interface 1 is divided into a vehicle body part.
In the preferred embodiment, the interface 1 between the upper and lower bodies of the side frame is determined according to the shape of the side frame, so as to meet the requirements of minimum cutting surface and the installation requirement of mutual matching of the upper and lower bodies.
Fig. 3 illustrates a side view of the roof portion 100 of the automobile model.
In the structural design of the roof portion 100, mounting holes and mounting surfaces of parts such as a roof rack, an antenna, a side weather strip, and a pillar trim cover are mainly considered.
In this side view, the roof mounting surface 2 and the roof interior trim 3 are illustrated, wherein the roof interior trim 3 is curved, which roof interior trim 3 is located on the inside of the roof and cannot be modified once determined, and cannot be machined later.
Fig. 4 illustrates an isometric view of the roof portion 100 of the automobile model.
The roof portion 100 is shown with side weather strip mounting holes 4 and the like on the inner side thereof, and similarly, these structures need to be designed in advance because they are located on the inner side, and if the roof portion and the body portion are mounted, these faces cannot be reworked.
FIG. 6 illustrates an isometric view of a body portion 200 of an automobile model.
The body section 200 includes a dashboard mounting surface 8, a body mounting surface 9, an interior hatrack mounting surface 10, a door molding mounting hole 11, and the like.
In addition, the design of the body section 200 also requires consideration of the installation of parts such as a quarter panel, a quarter weather strip, a tail lamp, etc. of the automobile model, and also of parts of interior trim such as a dash panel, a hatrack, and a quarter trim. These designs all need to be considered and implemented in advance, taking the installation into account before bringing together.
It should be noted that, in the above preferred embodiment, the fender 14 and the lower body of the rear cover of the automobile model shown in fig. 1 are not included in the body part 200, but the innovation of the present invention is that after the roof part and the body part are separately processed and then assembled together to form a closed frame structure, the display surface is integrally cast, and finally the whole automobile model is integrally milled. Therefore, other variations including these components in the body portion 200 are within the scope of the present invention under the basic concept.
Further, if the division of the position of the fender 14 is adopted, since the gap milling of the fender 14 and the a-pillar 15 is difficult, and the processing time for the sharp corner of the fender 14 is elongated after the fender 14 is put into the body portion 200, the progress of the entire model manufacturing is affected. Moreover, the scheme can cause the interface of the side frame to be elongated, and although the subsequent steps can be integrally cast, the length of the interface is reduced as much as possible from the optimization point of view so as to ensure the display quality of the model.
In addition, in consideration of subsequent long-distance transportation of the automobile model, parts such as side frame sealing strips, four-door external pressure decorative strips, column external decorative cover plates and the like of the automobile model are fixed in a screw fastening mode, and the mode is more stable than the fixed connection of the magnet.
S102: step two, the manufacture of the roof portion 100 of the automobile model.
According to the structural design, the blank manufacturing of the roof part 100 is completed, when the roof part 100 is milled, the roof interior data surface 3, the roof part mounting surface 2 and the positioning holes need to be milled to zero positions, and the roof exterior data surface 5 needs to be offset inwards by 10mm.
Mounting surfaces of other parts, such as a luggage rack, an antenna, a side sealing strip and a column cover plate of a roof part, are offset outwards by 10mm, mounting through holes of the other parts are processed by the inner side part and the outer side part in the milling process of the whole vehicle.
In a preferred embodiment, in more detail, during the machining process of the roof portion 100, a blank is made according to the structural design of the roof, the blank is usually made of a polyurethane material, and the standard size is 1500 × 500 × 100mm.
When the roof interior data surface 3 in fig. 3 is processed, the method in fig. 5 may be adopted, that is, a standard fixture is adopted for supporting, or a separate milling reverse profiling mold is adopted for processing, and if the method in fig. 5 is adopted, the processing support column 7 needs to be reserved when the blank is manufactured.
Requirements for specific machined surfaces:
the roof interior data surface 3, the roof mounting surface 2 and the positioning hole are milled to zero positions, the roof exterior data surface 5, namely a curved surface in the graph 4, needs to be offset inwards by 10mm, the exterior data surface 5 is working state data at the moment, and needs to be changed subsequently, wherein the 10mm is not a fixed value and is determined according to the change of the smooth data surface.
In order to eliminate the abutted seams, the whole vehicle model needs to be integrally poured with polyurethane instead of wood. Other part mounting surfaces, such as the roof part mounting surface 6 in fig. 4, are cover mounting surfaces of the B-pillars 16, and mounting surfaces of roof racks, antennas and side seals are offset outward by 10mm.
S103: and step three, manufacturing the body part 200 of the automobile model.
The blank of the vehicle body part 200 is manufactured according to the structural design, when the vehicle body part 200 is milled, the roof mounting surface 2, the roof interior data surface 3 and the side sealing strip mounting hole 4 need to be milled to zero positions, and the door exterior data surface 12 is offset inwards by 10mm.
The mounting surfaces of the door guard, the door handle and the tail lamp are offset by 10mm outwards, and the hole positions of the mounting holes 11 of the door outer pressing decoration strips cannot be machined after the roof and the vehicle body part are mounted together, so that the mounting holes of the parts need to be milled during the manufacturing of the vehicle body part.
In further detail, the processing of the body portion 200 requires a blank to be manufactured according to the structural design of the vehicle door, the whole vehicle frame must be manufactured in advance, the body portion is formed by bonding a polyurethane blank on the basis of the whole vehicle frame, and the blank of the mounting surface of the vehicle door trim needs to consider the processability.
In fig. 6, the vehicle body mounting surface 9, the interior instrument panel mounting surface 8 and the interior hatrack mounting surface 10 are milled to zero positions, the door exterior data surface 12 is offset inwards by 10mm, the door exterior data surface 12 is working state data at the moment, and needs to be changed subsequently, wherein the 10mm is not a fixed value and is determined according to the change of the smooth data surface.
In the preferred embodiment, the door trim, door handle, and tail light mounting surfaces are offset outwardly by 10mm.
It should be noted that, in the manufacturing process of the roof part and the vehicle body part in the above steps S102 and S103, the offset design of the mounting surface of the interior and exterior trim structure is adopted, and the design has two functions:
firstly, in order to eliminate the model error after the assembly of the roof and the automobile body part;
secondly, the difference between the enough working state data and the freezing data is reserved, 10mm in the above embodiment can be determined according to the manufacturing precision, and the range of 0-100mm is the protection scope of the patent.
It should be added that the two sets of offset distances of the roof portion and the body portion are provided according to the fairing data of the automobile model provided in the step one, and may be equal or unequal.
S104: step four, assembly of the roof portion 100 with the body portion 200.
And mounting the milled roof part on the body part, positioning through a plurality of pin holes on the mounting surface 9 of the body, bonding the roof part and the body part together, and pouring all exterior display surfaces after the mounting glue of the two parts is dried.
In further detail, after the roof part and the body part are manufactured, the roof part and the body part need to be assembled together, a glue gap of 0.5mm is reserved according to a positioning hole processed before, and a lifting appliance needs to be manufactured on the roof part, so that the installation is convenient.
After the assembly is completed, the side frame part has a previous partition gap, and the previous two parts are spliced together by the plate material, so that the whole polyurethane material is required to be poured after the assembly is completed, and the pouring surface is a smooth surface area for model display in the future.
Like the roof trim data surface 5 in fig. 4 and the door trim data surface 12 in fig. 6, and the mounting surface portions of the parts like the roof component mounting surface 6 in fig. 4 and the door component mounting surface 13 in fig. 6, no casting material is required because a machining allowance has been previously reserved.
S105: and step five, integrally processing the whole vehicle model.
After the integrally cast polyurethane material is completely cooled, the whole vehicle model is integrally processed, the process usually needs rough machining and finish machining at the same time, and the rough machining is mainly used for releasing the internal stress of the cast material.
The step is further described in detail, a whole vehicle model is integrally processed, and after the whole vehicle is poured, the whole vehicle is placed at normal temperature for more than 24 hours under the condition of no oven, so that the internal stress of the cast polyurethane material is eliminated, the deformation risk of the part is reduced, and if the step is omitted in the manufacturing process, the edge part of the part is deformed.
Once the rough machining of the whole vehicle is finished, the whole vehicle needs to be placed for 24 hours again so as to eliminate the internal stress of the pouring material again, the finish machining step pitch is controlled to be 0.3mm, the surface quality of a part can reach the best, the step pitch is smaller than 0.3mm, the machining time of the whole vehicle is too long, the milling time of a machine tool is occupied, the cost is increased, and the project schedule is influenced; the step pitch is greater than 0.3mm, can produce the line on part surface, increases the work load of polishing in later stage. And finally, reserving 0.2 mm-0.5 mm, and carrying out final milling with the aid of measuring equipment.
By adopting the high-precision automobile model manufacturing method, firstly, the narrowest place of the side frame is split into the top part and the body part, and then the two parts are respectively processed and assembled, so that the structure of the whole model belongs to a frame-shaped closed structure, and is different from an open structure formed by milling and re-installing a single part in the traditional scheme, the whole automobile structure has good strength and is not easy to deform. And then integrally pouring a display data surface, and finally integrally milling the whole vehicle. Belongs to the innovation of a whole vehicle manufacturing method in the field of model manufacturing.
The beneficial effects of the invention are: the method eliminates the error of milling and assembling the side frame and the roof single piece, ensures the precision of the whole vehicle model, and simplifies the model design and manufacturing steps, thereby shortening the manufacturing period of the whole model and reducing the development cost.
Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing disclosure is by way of example only, and is not intended to limit the present application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, though not expressly described herein. Such alterations, modifications, and improvements are intended to be suggested herein and are intended to be within the spirit and scope of the exemplary embodiments of this application.
Also, the present application uses specific words to describe embodiments of the application. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means a feature, structure, or characteristic described in connection with at least one embodiment of the application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.
Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single disclosed embodiment.
Numerals describing the number of components, attributes, etc. are used in some embodiments, it being understood that such numerals used in the description of the embodiments are modified in some instances by the use of the modifier "about", "approximately" or "substantially". Unless otherwise indicated, "about", "approximately" or "substantially" indicates that the number allows a variation of ± 20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that may vary depending upon the desired properties of the individual embodiments. In some embodiments, the numerical parameter should take into account the specified significant digits and employ a general digit preserving approach. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the range are approximations, in the specific examples, such numerical values are set forth as precisely as possible within the scope of the application.
Although the present application has been described with reference to the present specific embodiments, it will be recognized by those skilled in the art that the foregoing embodiments are merely illustrative of the present application and that various changes and substitutions of equivalents may be made without departing from the spirit of the application, and therefore, it is intended that all changes and modifications to the above-described embodiments that come within the spirit of the application fall within the scope of the claims of the application.
Claims (10)
1. A method of manufacturing a high-precision automobile model, characterized by comprising:
a data preparation step, namely selecting an upper body interface and a lower body interface of a side frame of an automobile model according to the acquired fairing initial edition data, and dividing the automobile model into an automobile roof part and an automobile body part;
a roof portion manufacturing step of manufacturing a blank of the roof portion according to a structural design;
a vehicle body part manufacturing step of manufacturing a blank of the vehicle body part according to a structural design;
assembling, namely assembling the roof part and the body part, and pouring an exterior decoration display surface;
an integral processing step of integrally processing the roof part and the body part after the assembling step to form an automobile model; wherein the roof section manufacturing step further comprises,
the roof part comprises a roof outer decoration data surface, a roof inner decoration data surface, a roof mounting surface and a roof spare part mounting surface, wherein the roof inner decoration data surface, the roof mounting surface and a side sealing strip mounting hole are milled to zero positions, the roof outer decoration data surface is inwards offset by a first offset distance, and the spare part mounting surface is outwards offset by a second offset distance.
2. The method of claim 1, wherein in the data preparing step, the boundary surfaces of the upper and lower bodies of the side frames are the positions where the end faces of the segments of the upper and lower bodies of the automobile model are smallest.
3. The high accuracy automobile model manufacturing method according to claim 1,
the body part manufacturing step further includes,
the automobile body part comprises an automobile door outer decoration data surface, an automobile body mounting surface, an inner decoration instrument board mounting surface, an inner decoration hatrack mounting surface and an automobile body spare part mounting surface, wherein the automobile body mounting surface, the inner decoration instrument board mounting surface and the inner decoration hatrack mounting surface are milled to zero positions, the automobile door outer decoration data surface is inwardly offset by a third offset distance, and the spare part mounting surface is outwardly offset by a fourth offset distance.
4. The high accuracy automobile model manufacturing method according to claim 1,
in the assembling step, a pin-hole connection is included between the roof mounting surface and the vehicle body mounting surface.
5. A high accuracy automobile model manufacturing method according to claim 3,
the vehicle body part mounting surface comprises a vehicle door guard plate, a door handle and a tail lamp mounting surface.
6. The high accuracy automobile model manufacturing method according to claim 1,
the mounting surfaces of the roof parts comprise mounting surfaces of a roof part luggage rack, an antenna, a side sealing strip and a column cover plate.
7. The high-precision automobile model manufacturing method according to claim 3,
the first to fourth offset distances are varied according to the fairing data plane.
8. The high accuracy automobile model manufacturing method according to claim 7,
the first to fourth offset distances range from 0 to 100mm.
9. The high accuracy automobile model manufacturing method according to claim 1,
the integrated processing step further comprises rough processing and finish processing, wherein the rough processing comprises placing for at least 24 hours at normal temperature so as to eliminate the stress in the casting material, and the finish processing comprises milling processing to meet the precision requirement.
10. The high-precision automobile model manufacturing method according to claim 1,
the manufacturing step of the vehicle body part further comprises the step of fixing the side frame sealing strips, the four-door external pressure decorative strips and the column external decorative cover plates in a screw fastening mode.
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