CN115303386A - Automobile frame design method and system - Google Patents
Automobile frame design method and system Download PDFInfo
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- CN115303386A CN115303386A CN202210938884.XA CN202210938884A CN115303386A CN 115303386 A CN115303386 A CN 115303386A CN 202210938884 A CN202210938884 A CN 202210938884A CN 115303386 A CN115303386 A CN 115303386A
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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
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
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Abstract
The application discloses an automobile frame design method and an automobile frame design system, which relate to the technical field of automobile frames and comprise the step of respectively dividing an automobile assembly and frame parts into a plurality of automobile blocks and a plurality of frame blocks. And when all vehicle types are involved, the total number of the first connecting parts of each vehicle block and the total number of the second connecting parts of each vehicle frame block are calculated. Evenly set up corresponding first connecting hole and second connecting hole on the longeron. And acquiring vehicle model design information containing the information, and selecting the corresponding first connecting hole and the second connecting hole to complete vehicle frame assembly to obtain a vehicle frame design scheme. After the car chunk of big granularity of this application division, the frame chunk of the big granularity of corresponding design, when improving the frame chunk universal ratio, reduce both multiplexing to the connecting hole, further through first connecting hole and the second connecting hole that satisfies all motorcycle types, avoid repeated design connecting hole, improve frame design efficiency.
Description
Technical Field
The application relates to the technical field of automobile frames, in particular to an automobile frame design method and an automobile frame design system.
Background
The frame is a frame structure bridged on the front axle and the rear axle of the automobile, is commonly called a crossbeam and is a base body of the automobile. Generally consisting of two longitudinal beams and several transverse beams, supported on the wheels via suspension, front axle, and rear axle. The function of the frame is to support and connect the various assemblies of the vehicle, to maintain the assemblies in a relatively correct position, and to support the various loads inside and outside the vehicle, and to have sufficient strength and rigidity to support the loads of the vehicle and the impacts transmitted from the wheels. The parts forming the frame can comprise a longitudinal beam, a secondary beam, a large frame casting, a buffer block support, a saddle connecting plate, carriage angle iron, a first cross beam, a front lower pocket beam, a rear cross beam of a gearbox, a third cross beam, a balance shaft cross beam, a longitudinal beam reinforcing plate, a circular tube beam assembly, a rear suspension front cross beam, a rear suspension shock absorber cross beam, a rear suspension rear cross beam, a tail cross beam, a towing hook, a transmission shaft cross beam and the like.
The frame design is still carried out according to different platforms at present, and every platform all is used for carrying out the iterative design to a certain car type frame of a certain period, and the inside frame spare part of same platform probably has some general relations, but between platform and external design system, or different platforms, because lack overall planning and plan, the required spare part of each frame design scheme has great difference and randomness, and the spare part universalization rate that it relates to is not high. In addition, the current complex and changeable user requirements are met immediately in the same platform, the generalization rate of the frame parts is improved, and the frame structure meeting the user requirements is difficult to generate by fast response.
Specifically, the reason for influencing the design efficiency of the vehicle frame can be considered from the following aspects:
firstly, when the vehicle is erected on a platform at present, except for a longitudinal beam, the granularity of division of all other parts is too small, for example, the existing vehicle frame data structure uses a single cross beam as a vehicle frame block, the number of the vehicle frame blocks which need to be taken when a vehicle frame is completed is too large, the data structure inside the vehicle frame is not clear enough and is too complex, the efficient management and use of the vehicle frame data are not facilitated, the design efficiency is too low, in addition, when a new vehicle frame is designed, even if only part of the structure in the vehicle frame is changed, all the vehicle frame blocks need to be taken again to form the new vehicle frame, the part of the vehicle frame structure which is completed in the previous vehicle frame design and does not need to be changed can not be borrowed, and the generalization rate of different vehicle frame designs is lower.
Secondly, the holes of the frame are not managed in groups, the types and models of all selected other parts are completely designed according to the design except the longitudinal beam, when the parts are assembled on the longitudinal beam, the positions of connecting holes for connecting all the parts of the frame are designed one by one according to experience (each part of the frame is provided with at least one connecting part which is installed in the connecting hole to install the part of the frame on the longitudinal beam), then all the automobile assemblies needing to be installed on the longitudinal beam are considered, the positions of the connecting holes for connecting all the automobile assemblies are designed one by one according to the experience (each automobile assembly is provided with at least one connecting part which is installed in the connecting hole to install the automobile assembly on the longitudinal beam), the distribution positions of the connecting holes are adjusted adaptively according to all design examples, efficient configuration of the holes of the automobile assemblies cannot be completed when the requirements of users are clear in the early stage, the response speed of a hole group file of the frame is influenced, all the parts in the frame are installed on the longitudinal beam, after the frame assembly is completed, the automobile assemblies are also installed on the frame and the longitudinal beam, the parts cannot be installed on the inner side of the longitudinal beam, and the longitudinal beam installation parts and the installation parts can not be mutually interfered when the automobile assemblies are installed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method and a system for designing an automobile frame, which can solve the problems of trivial frame block and tedious hole site design in the existing frame design and improve the frame design efficiency.
In order to achieve the above purposes, the technical scheme is as follows:
the application provides in a first aspect a frame module design method, including:
acquiring relevant information of automobile assemblies and frame parts of all automobile types, and dividing the automobile assemblies and the frame parts into a plurality of automobile chunks and a plurality of frame chunks which are in one-to-one correspondence;
respectively counting the number of first connecting parts at different positions contained in the same automobile block of all automobile types to obtain the total number of the first connecting parts of each automobile block; respectively counting the number of second connecting parts at different positions of the same frame block of all vehicle types to obtain the total number of the second connecting parts of each frame block;
according to the total number of the first connecting parts and the total number of the second connecting parts, a plurality of groups of first connecting holes corresponding to different automobile blocks and second connecting holes corresponding to different frame blocks are configured on the longitudinal beam, and the first connecting holes and the second connecting holes are uniformly distributed;
obtaining vehicle type design information to obtain vehicle assembly models in all vehicle blocks corresponding to the vehicle type, a plurality of first connecting holes corresponding to the vehicle assembly models, vehicle frame part models in all vehicle frame blocks and a plurality of second connecting holes corresponding to the vehicle frame part models, and outputting a vehicle frame design scheme.
In some embodiments, the plurality of vehicle assemblies includes a frame structure assembly, a front axle area assembly, a middle area assembly, a rear axle area assembly, and a transmission assembly;
the plurality of vehicle frame blocks comprise a vehicle frame block corresponding to the vehicle frame structure assembly, a front block corresponding to the front axle area assembly, a middle block corresponding to the middle axle area assembly, a rear block corresponding to the rear axle area assembly and a transmission block corresponding to the transmission assembly.
In some embodiments, the frame structure assembly includes all of the other vehicle components except for the front axle area assembly, the middle area assembly, the rear axle area assembly, and the transmission assembly;
the front axle area assembly comprises a cab, an engine and a gearbox;
the middle region assembly comprises a double rear axle suspension;
the rear axle area assembly comprises a single rear axle suspension;
the drive assembly includes a drive shaft hanger.
In some embodiments, the frame blocks comprise longitudinal beams, secondary beams, large frame castings, bumper supports, saddle connecting plates, and carriage angle irons;
the front module comprises a first cross beam, a front lower pocket beam, a rear lower pocket beam and a gearbox rear cross beam;
the middle module comprises a third cross beam, a balance shaft cross beam and a longitudinal beam reinforcing plate;
the rear module comprises a circular tube beam assembly, a rear suspension front beam, a rear suspension shock absorber beam, a rear suspension rear beam, a tail beam and a towing hook;
the transmission block comprises a transmission shaft cross beam.
In some embodiments, the vehicle model design information includes design information of all vehicle blocks of the vehicle model and design information of all frame blocks of the vehicle model;
the design information of the automobile block comprises the models of all automobile assemblies contained in the automobile block, and each model of automobile assembly comprises a first connecting part with a specified number and a specified position;
the design information of the frame block comprises the models of all frame parts contained in the frame block, and each model of frame part comprises a specified number of second connecting parts at specified positions.
In some embodiments, the obtaining of the plurality of first connection holes corresponding to the model of the automobile assembly includes the following specific steps:
obtaining design information of all automobile blocks of the automobile type according to the design information of the automobile type;
and according to the design information of each automobile block, selecting a plurality of first connecting holes matched with the first connecting parts from all the first connecting holes corresponding to each automobile block.
In some embodiments, the obtaining of the plurality of second connecting holes corresponding to the vehicle frame part models specifically includes the following steps:
obtaining the design information of all the frame blocks of the vehicle type according to the design information of the vehicle type;
and according to the design information of each vehicle frame block, selecting a plurality of second connecting holes matched with the second connecting parts from all the second connecting holes corresponding to each vehicle frame block.
In some embodiments, the design scheme of the output frame comprises the following specific steps:
judging whether overlapping exists between first connecting holes corresponding to different automobile blocks, between second connecting holes corresponding to different frame blocks and between the first connecting holes corresponding to the automobile blocks and the second connecting holes corresponding to the frame blocks, and configuring a middleware for the two overlapping connecting holes when the judging result is yes, wherein the middleware is provided with two universal connecting holes; the first connecting hole, the second connecting hole and the universal connecting hole are the same in shape;
and after all the automobile blocks are installed on the longitudinal beam through the first connecting part and the first connecting hole and all the frame blocks are installed on the longitudinal beam through the second connecting part and the second connecting hole, a frame assembly and a corresponding frame assembly file are obtained, and the frame assembly file is output as a frame design scheme.
The present application provides in a second aspect an automotive frame design system, the system comprising:
the granularity dividing module is used for acquiring relevant information of automobile assemblies and frame parts of all automobile types, and dividing the automobile assemblies and the frame parts into a plurality of automobile blocks and a plurality of frame blocks, wherein the automobile blocks correspond to the frame blocks one by one;
the connecting hole planning module is used for respectively counting the number of first connecting parts at different positions contained in the same automobile block of all automobile types to obtain the total number of the first connecting parts of each automobile block, and configuring a plurality of groups of first connecting holes corresponding to different automobile blocks on the longitudinal beam according to the total number of the first connecting parts; the first connecting parts are used for respectively counting the number of the second connecting parts at different positions of the same frame block of all vehicle types to obtain the total number of the second connecting parts of each frame block, and a plurality of groups of second connecting holes corresponding to different frame blocks are configured on the longitudinal beam according to the total number of the second connecting parts; the first connecting holes and the second connecting holes are uniformly distributed;
and the frame generation module is connected with the granularity division module and the connecting hole planning module and used for acquiring vehicle type design information so as to obtain the vehicle assembly models in all the vehicle chunks corresponding to the vehicle type, a plurality of first connecting holes corresponding to the vehicle assembly models, the frame part models in all the frame chunks and a plurality of second connecting holes corresponding to the frame part models and outputting a frame design scheme.
In some embodiments, the plurality of vehicle assemblies includes a frame structure assembly, a front axle area assembly, a middle area assembly, a rear axle area assembly, and a transmission assembly;
the plurality of vehicle frame blocks comprise a vehicle frame block corresponding to the vehicle frame structure assembly, a front block corresponding to the front axle area assembly, a middle block corresponding to the middle axle area assembly, a rear block corresponding to the rear axle area assembly and a transmission block corresponding to the transmission assembly.
The beneficial effect that technical scheme that this application provided brought includes:
when the frame is designed, all frame parts are also divided into frame chunks, front chunks, middle chunks, rear chunks and transmission chunks according to the frame structure assembly, the front axle region assembly, the middle region assembly, the rear axle region assembly and the transmission assembly, the frame is designed in a five-chunk mode, so that the situation that partial chunks with unchanged structures are redesigned during frame iteration can be avoided, the universal rate of the frame chunks is improved, and the frame design efficiency is improved.
Because the design of each frame block considers the corresponding automobile assembly, for example, the model of the adopted frame parts needs to be selected by matching with the automobile assembly, when a user designs each frame block, the model of the frame parts in each frame block can be selected by combining the automobile assembly, so that when the frame parts and the automobile assembly are installed on the longitudinal beam, the multiplexing or the interference is avoided.
Because the first connecting parts of each automobile assembly are installed on the longitudinal beam, the number of the required first connecting holes is fixed, and the positions of the first connecting holes are not fixed, the first connecting holes which are enough for all automobile types to be used can be designed on the longitudinal beam aiming at each automobile assembly after the number of the first connecting parts at all different positions possibly contained in the same automobile assembly of all automobile types is obtained, the first connecting holes are uniformly distributed, and when the automobile is subsequently erected, no matter how the structure of an automobile machine is changed, the proper hole positions can be selected from the designed first connecting holes, so that the design efficiency of the automobile frame is improved.
The number of the second connecting holes required in the mounting total amount of the second connecting parts of each frame block is fixed, and the positions of the second connecting holes are not fixed, so that after the number of the second connecting parts at all different positions possibly contained in the frame blocks of all vehicle types is obtained, the second connecting holes enough for all vehicle types are designed on the longitudinal beam for each frame block, the second connecting holes are uniformly distributed, and when the vehicle is subsequently erected, proper hole positions can be selected from the designed second connecting holes, so that the frame design efficiency is improved.
Drawings
FIG. 1 is a flow chart of a method for designing an automobile frame according to an embodiment of the present invention.
Fig. 2 is a schematic distribution diagram of first connection holes according to an embodiment of the present invention.
Fig. 3 is a functional module schematic diagram of the automobile frame design system in the embodiment of the invention.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, an embodiment of the present invention provides a method for designing an automobile frame, which includes dividing an automobile assembly and frame components into a plurality of automobile blocks and a plurality of frame blocks. And calculating the total number of the first connecting parts at different positions of each automobile block and the total number of the second connecting parts at different positions of each frame block when all the automobile types are involved. Evenly set up corresponding first connecting hole 4 and second connecting hole on the longeron. And acquiring vehicle type design information containing the design information of each chunk, and selecting the corresponding first connecting hole 4 and second connecting hole to complete vehicle frame assembly to obtain a vehicle frame design scheme.
In this embodiment, after dividing the car chunk, correspond the frame chunk of the big granularity of design, when improving the frame chunk universal ratio, reduce both multiplexing to the connecting hole, through satisfying first connecting hole 4 and the second connecting hole of all motorcycle types, avoid redesign connecting hole, reduce frame special-purpose part quantity, reduce frame whole manufacturing and reduction in production cost, improve frame design efficiency.
Specifically, the design method of the automobile frame comprises the following steps:
s1, obtaining relevant information of automobile assemblies and frame parts of all automobile types, and dividing the automobile assemblies and the frame parts into a plurality of automobile blocks and a plurality of frame blocks respectively, wherein the automobile blocks correspond to the frame blocks one to one.
S2, respectively counting the number of first connecting parts at different positions contained in the same automobile block of all automobile types to obtain the total number of the first connecting parts of all the automobile blocks; and respectively counting the quantity of the second connecting parts at different positions of the same frame block of all the vehicle types to obtain the total quantity of the second connecting parts of each frame block.
And S3, according to the total number of the first connecting parts and the total number of the second connecting parts, a plurality of groups of first connecting holes 4 corresponding to different automobile blocks and second connecting holes corresponding to different automobile frame blocks are configured on the longitudinal beam, and the first connecting holes 4 and the second connecting holes are uniformly distributed.
And S4, acquiring vehicle type design information to obtain vehicle assembly models in all vehicle blocks corresponding to the vehicle type, a plurality of first connecting holes 4 corresponding to the vehicle assembly models, vehicle frame part models in all vehicle frame blocks and a plurality of second connecting holes corresponding to the vehicle frame part models, and outputting a vehicle frame design scheme.
In this embodiment, the frame is currently divided into a trapezoidal frame, a ridge beam frame, a peripheral frame and a truss frame according to different structural forms. The trapezoidal frame consists of two longitudinal beams and a plurality of cross beams, the cross section of each longitudinal beam is in a groove shape, a Z shape or a box shape, and the like, and the longitudinal beams can be made into a bent shape, an equal cross section or a variable cross section in a horizontal plane or a longitudinal plane. The trapezoidal frame is large in bending strength, parts are tightly and conveniently installed, and the trapezoidal frame is widely applied to commercial trucks and partial passenger cars and rarely applied to passenger cars. The spine frame only has one longitudinal beam which is positioned in the center and penetrates through the front and the rear of the automobile, and the section shape of the longitudinal beam can be a round tube shape or a box shape. The ridge beam type frame has the advantages that the frame is small in mass, high in strength and rigidity, the passing capacity of an automobile can be improved when the ridge beam type frame is used with an independent suspension, the requirement on manufacturing precision of the frame is high, and the defect that maintenance is difficult is that the ridge beam type frame is used. The middle part of the frame of the peripheral frame is widened without a cross beam, and the main part of the frame is usually closed section. The peripheral frame is applied to a passenger vehicle with large displacement due to the reasons of low floor height, large passenger compartment volume, simple structure, small mass, easy manufacture and the like. The truss type frame is formed by combining and welding steel pipes. The automobile wheel has the characteristics of high rigidity and small mass, but is difficult to manufacture and is mainly used for racing. The method is applicable to various existing frame structures.
In a preferred embodiment, the plurality of vehicle assemblies includes a frame structure assembly, a front axle area assembly, a middle area assembly, a rear axle area assembly, and a drive assembly.
The plurality of vehicle frame modules comprise a vehicle frame module corresponding to the vehicle frame structure assembly, a front module corresponding to the front axle area assembly, a middle module corresponding to the middle axle area assembly, a rear module corresponding to the rear axle area assembly, and a transmission module corresponding to the transmission assembly.
In the embodiment, each automobile assembly is divided into a frame structure assembly, a transmission assembly and other assemblies according to the function of the automobile assembly, and is divided into a front axle area assembly, a middle area assembly and a rear area assembly according to the installation position of the other assemblies.
In a preferred embodiment, the frame structure assembly includes all of the other vehicle components except the front axle area assembly, the center area assembly, the rear axle area assembly, and the transmission assembly. The front axle area assembly includes a cab, an engine, and a transmission. The middle zone assembly includes a dual rear axle suspension. The rear axle area assembly includes a single rear axle suspension. The drive assembly includes a drive shaft hanger. The transmission assembly includes a transmission shaft hanger.
The frame block comprises a longitudinal beam, a secondary beam, a large frame casting, a buffer block support, a saddle connecting plate and a carriage angle iron. The auxiliary beam refers in particular to an integral auxiliary beam which is matched with the longitudinal beam. The front module comprises a first beam, a front lower pocket beam, a rear lower pocket beam and a gearbox rear beam. The middle module comprises a third cross beam, a balance shaft cross beam and a longitudinal beam reinforcing plate. The beam reinforcing plate refers to a local reinforcing auxiliary beam and is matched with the cross beam for use. The rear module comprises a circular tube beam assembly, a rear suspension front beam, a rear suspension shock absorber beam, a rear suspension rear beam, a tail beam and a towing hook. The transmission block comprises a transmission shaft cross beam.
In the present embodiment, the front block is located at the front of the frame, and is a cab, a frame cross member of an engine area, and components, mainly related to the cab type and the type of the engine and the transmission. The middle component is positioned in the middle of the frame and comprises a balance shaft beam and the like, and is mainly related to a double-rear-axle suspension form. The rear module is positioned at the rear part of the frame and is mainly related to the form of a single rear axle suspension and a tail cross beam. The transmission block is a frame system part such as a cross beam for mounting a transmission shaft hanger. The frame block mainly refers to frame system parts such as a longitudinal beam, a secondary beam, a front end large casting, a saddle connecting plate and the like except a front component, a middle component, a rear component and a transmission component.
According to the requirements of all market segments of users, the minimum vehicle frame blocks are planned to meet the requirements of all market segments, the vehicle frame assembly is divided into the five vehicle frame blocks according to the position and the function, and when the vehicle frame structure is updated, the redesign is only needed to be carried out on the updated vehicle frame blocks. And each frame block internally comprises parts such as a frame cross beam in a corresponding area.
The frame block comprises 32 deformed longitudinal beams, 14 deformed secondary beams, 8 deformed large frame castings, 2 deformed buffer block supports, 5 deformed saddle connecting plates and 2 deformed carriage angle irons. For example, various deformed longitudinal beams are obtained based on the dimensions of the frame outer width, the section height of the longitudinal beam, the wing surface height of the longitudinal beam, the thickness of a secondary beam, the weight parameter of the heavy-duty truck, the driving form and the like.
The front block comprises a first crossbeam with 7 kinds of deformation, a front lower pocket beam with 5 kinds of deformation, a rear lower pocket beam with 7 kinds of deformation and a rear crossbeam of a gearbox with 8 kinds of deformation. For example, the first cross member with various deformations is obtained based on several dimensions such as the frame outer width, the interface and the application (general purpose for engineering vehicle, general purpose for road vehicle, special purpose for fixing snow shovel, or for fixing battery).
The middle block comprises 4 deformed third cross beams, 8 deformed balance shaft cross beams and 6 deformed longitudinal beam reinforcing plates. For example, a third beam of various deformations is obtained based on several dimensions such as frame outer width, side rail and sub-rail thickness, and beam profile (8+4 geometric type beam, 8+4 arched beam, 8+6 arched beam, or 8+8 arched beam).
The rear module comprises 3 deformed circular tube beam assemblies, 12 deformed rear suspension front cross beams, 1 deformed rear suspension shock absorber cross beam, 9 deformed rear suspension rear cross beams, 19 deformed tail cross beams and 6 deformed towing hooks. For example, various deformed circular tube beams are obtained based on several dimensions such as the outer width of the frame, the thicknesses of the side members and the sub-members.
The transmission block comprises a transmission shaft beam with 7 types of deformation. For example, various deformed transmission shaft cross beams are obtained based on the external width of the frame, the thicknesses of the longitudinal beams and the secondary beams and other dimensions.
In a preferred embodiment, the vehicle model design information includes design information of all vehicle blocks of the vehicle model and design information of all vehicle frame blocks of the vehicle model.
The design information of the automobile block includes models of all automobile assemblies included in the automobile block, and each model of automobile assembly includes a specified number of first connecting parts and a specified position.
The design information of the frame block comprises the models of all the frame parts contained in the frame block, and each model of frame part comprises a specified number of second connecting parts at specified positions.
In a preferred embodiment, a plurality of first connection holes 4 corresponding to the models of the car assemblies are obtained by the following steps:
and obtaining the design information of all automobile blocks of the automobile according to the design information of the automobile.
According to the design information of each automobile block, a plurality of first connecting holes 4 matching the first connecting parts are selected from all the first connecting holes 4 corresponding to each automobile block respectively.
In a preferred embodiment, a plurality of second connecting holes corresponding to the vehicle frame part models are obtained, and the method specifically comprises the following steps:
and obtaining the design information of all the frame blocks of the vehicle type according to the design information of the vehicle type.
And according to the design information of each frame block, selecting a plurality of second connecting holes matched with the second connecting parts from all the second connecting holes corresponding to each frame block.
In this embodiment, taking the frame including two longitudinal beams that are parallel to each other as an example, all frame components except the longitudinal beams in the frame are disposed between the two longitudinal beams, that is, the inner sides of the longitudinal beams need to be provided with first mounting holes, and each automobile assembly is disposed outside the two longitudinal beams, that is, the outer sides of the longitudinal beams need to be provided with second mounting holes. In the prior art, a frame is designed, and then all automobile assemblies are matched after the frame is designed. There is a problem in that different vehicle assemblies cannot coexist spatially due to lack of overall planning of the first mounting hole when mounted to the side member, and there may be a need for different vehicle assemblies to share the same first mounting hole or interference between different vehicle assemblies. When different frame parts are installed on the longitudinal beam, due to the lack of overall planning of the second installation holes, the different frame parts need to share the same second installation hole or interference between the different frame parts cannot coexist on space.
After the scheme is adopted, the corresponding automobile assembly is considered in the design of each frame block, for example, the model of the adopted frame part needs to be selected by matching with the automobile assembly, so that when a user designs each frame block, the model of the frame part in each frame block can be selected by combining the automobile assembly, and when the frame part and the frame part are installed on the longitudinal beam, the multiplexing or the interference is avoided.
Because the number of the first connecting holes 4 required for installing the first connecting part of each automobile assembly on the longitudinal beam is fixed, and the positions of the first connecting holes 4 are not fixed, the first connecting holes 4 enough for all automobile types can be designed on the longitudinal beam aiming at each automobile assembly after the number of the first connecting parts at all different positions possibly contained in the same automobile assembly of all automobile types is obtained, the first connecting holes 4 are uniformly distributed, and during subsequent automobile erection timing, no matter how the automobile structure is changed, a proper hole position can be selected from the designed first connecting holes 4, so that the design efficiency of the automobile frame is improved.
The number of the second connecting holes required in the mounting total amount of the second connecting parts of each frame block is fixed, and the positions of the second connecting holes are not fixed, so that after the number of the second connecting parts at all different positions possibly contained in the frame blocks of all vehicle types is obtained, the second connecting holes enough for all vehicle types are designed on the longitudinal beam for each frame block, the second connecting holes are uniformly distributed, and when the vehicle is subsequently erected, proper hole positions can be selected from the designed second connecting holes, so that the frame design efficiency is improved.
As shown in fig. 2, the first connection holes 4 are uniformly distributed, and are distributed at a first fixed interval in the X-axis direction and at a second fixed interval in the Z-axis direction, and the first fixed interval and the second fixed interval can be adjusted according to design requirements.
In a preferred embodiment, the design scheme of the output frame comprises the following specific steps:
judging whether overlapping exists between first connecting holes 4 corresponding to different automobile blocks, between second connecting holes corresponding to different frame blocks and between the first connecting holes 4 corresponding to the automobile blocks and the second connecting holes corresponding to the frame blocks, and configuring a middleware for the two overlapped connecting holes when the judging result is yes, wherein the middleware is provided with two general connecting holes; the first connection hole 4, the second connection hole, and the general connection hole are the same in shape.
And installing all the automobile blocks on the longitudinal beam through the first connecting parts and the first connecting holes 4, and installing all the frame blocks on the longitudinal beam through the second connecting parts and the second connecting holes to obtain a frame assembly and a corresponding frame assembly file, and outputting the frame assembly file as a frame design scheme.
In this embodiment, the method for constructing the frame BOM (bill of material) data is based on the guiding idea of the frame chunk design method, and performs module construction according to five modules of a frame chunk, a front chunk, a middle chunk, a rear chunk, and a transmission chunk, and then obtains vehicle type design information according to a certain rule (for example, vehicle type usage classification) after characteristics are selected according to customer requirements, and forms a certain frame assembly configuration according to the vehicle type design information, and finally obtains a frame assembly meeting customer requirements after a finished vehicle is selected according to the customer requirement characteristics.
The hole site information of the frame is grouped by fine hole group data, and the system hole group data is associated and mapped with the technical characteristics (representing the user requirement characteristics) of the whole vehicle, so that a corresponding frame hole group sub-module (contained in the frame component) meeting the user requirement can be generated by the requirement check of the technical characteristics (representing the user requirement characteristics) of the whole vehicle,
the information of the frame hole group submodule is provided for the frame longitudinal beam, a CAD system can be provided to be efficiently, accurately and automatically converted into complete hole position information used by the frame longitudinal beam, the system hole group information is modularly designed and managed like frame parts, and the omnibearing implementation of frame modularization is powerfully supported. The efficiency of frame hole site at 3D solebar model construction has been improved promptly, has also guaranteed the accuracy simultaneously, and original several hundred information of punching rely on designer's manual input completely, and is consuming time and power, still very easily the maloperation appears.
As shown in fig. 3, the present application further discloses an automobile frame design system, which includes a granularity division module 1, a connection hole planning module 2, and a frame generation module 3.
The granularity division module 1 is used for acquiring relevant information of automobile assemblies and frame parts of all automobile types, and dividing the automobile assemblies and the frame parts into a plurality of automobile blocks and a plurality of frame blocks respectively, wherein the automobile blocks correspond to the frame blocks one to one.
The connecting hole planning module 2 is used for respectively counting the number of first connecting parts at different positions contained in the same automobile chunk of all automobile models so as to obtain the total number of the first connecting parts of each automobile chunk, and a plurality of groups of first connecting holes 4 corresponding to different automobile chunks are configured on the longitudinal beam according to the total number of the first connecting parts. The longitudinal beam is also used for respectively counting the number of second connecting parts at different positions of the same frame block of all vehicle types to obtain the total number of the second connecting parts of each frame block, and a plurality of groups of second connecting holes corresponding to different frame blocks are configured on the longitudinal beam according to the total number of the second connecting parts; the first connection holes 4 and the second connection holes are uniformly distributed.
The frame generation module 3 is connected with the granularity division module 1 and the connection hole planning module 2, and is used for acquiring vehicle type design information to obtain the vehicle assembly models in all the vehicle blocks corresponding to the vehicle type, a plurality of first connection holes 4 corresponding to the vehicle assembly models, the frame part models in all the frame blocks, and a plurality of second connection holes corresponding to the frame part models, and outputting a frame design scheme.
In this embodiment, the granularity division module 1 firstly determines the section size parameters of the frame longitudinal beam and the auxiliary beam strictly according to the load and the use condition, then determines the frame outer width parameter by combining the matching requirement and the arrangement requirement of the whole vehicle cab and the power assembly, and finally determines the arrangement position and the arrangement form of the cross beam. The frame blocks comprise a frame block corresponding to the frame structure assembly, a front block corresponding to the front axle area assembly, a middle block corresponding to the middle axle area assembly, a rear block corresponding to the rear axle area assembly and a transmission block corresponding to the transmission assembly.
Each frame block is associated and mapped with technical characteristics (representing user requirement characteristics) of the whole vehicle, corresponding frame blocks meeting the user requirements can be generated through requirement selection of the technical characteristics of the whole vehicle, and the frame blocks are automatically combined into a frame assembly product according to the previously defined frame configuration for the whole vehicle to select.
A corresponding first connecting hole 4 is designed for each automobile assembly, a corresponding first connecting hole 4 is designed for each automobile frame block, and system hole group data and technical characteristics (representing user requirement characteristics) of the whole automobile are associated and mapped, so that a corresponding frame hole group meeting user requirements can be generated through the requirement selection of the technical characteristics of the whole automobile, relevant information of the frame hole group is provided for a frame longitudinal beam, the complete used hole position information which can be efficiently and accurately automatically converted into the frame longitudinal beam by a CAD system is provided, the system hole group information is subjected to modular design and management, and the omnibearing implementation of frame modularization is powerfully supported.
The control system of the present embodiment is applied to the above control methods.
The present application is not limited to the above embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present application, and such modifications and improvements are also considered to be within the scope of the present application.
Claims (10)
1. A method for designing an automobile frame is characterized by comprising the following steps:
acquiring relevant information of automobile assemblies and frame parts of all automobile types, and dividing the automobile assemblies and the frame parts into a plurality of automobile chunks and a plurality of frame chunks which are in one-to-one correspondence;
respectively counting the number of first connecting parts at different positions contained in the same automobile block of all automobile types to obtain the total number of the first connecting parts of each automobile block; respectively counting the number of second connecting parts at different positions of the same frame block of all vehicle types to obtain the total number of the second connecting parts of each frame block;
according to the total number of the first connecting parts and the total number of the second connecting parts, a plurality of groups of first connecting holes corresponding to different automobile blocks and second connecting holes corresponding to different frame blocks are configured on the longitudinal beam, and the first connecting holes and the second connecting holes are uniformly distributed;
obtaining vehicle type design information to obtain vehicle assembly models in all vehicle blocks corresponding to the vehicle type, a plurality of first connecting holes corresponding to the vehicle assembly models, vehicle frame part models in all vehicle frame blocks and a plurality of second connecting holes corresponding to the vehicle frame part models, and outputting a vehicle frame design scheme.
2. The method of designing an automotive frame of claim 1, wherein said plurality of automotive assemblies includes a frame structure assembly, a front axle area assembly, a middle area assembly, a rear axle area assembly, and a transmission assembly;
the plurality of vehicle frame blocks comprise a vehicle frame block corresponding to the vehicle frame structure assembly, a front block corresponding to the front axle area assembly, a middle block corresponding to the middle axle area assembly, a rear block corresponding to the rear axle area assembly and a transmission block corresponding to the transmission assembly.
3. The method of designing an automotive frame as described in claim 2, characterized in that said frame structure assembly includes all other automotive components except a front axle area assembly, a middle area assembly, a rear axle area assembly, and a transmission assembly;
the front axle area assembly comprises a cab, an engine and a gearbox;
the middle region assembly comprises a double rear axle suspension;
the rear axle area assembly comprises a single rear axle suspension;
the drive assembly includes a drive shaft hanger.
4. The automobile frame design method of claim 2, wherein the frame blocks include side rails, sub-beams, frame large castings, bumper supports, saddle attachment plates, and cabin angle irons;
the front module comprises a first cross beam, a front lower pocket beam, a rear lower pocket beam and a gearbox rear cross beam;
the middle module comprises a third cross beam, a balance shaft cross beam and a longitudinal beam reinforcing plate;
the rear module comprises a circular tube beam assembly, a rear suspension front beam, a rear suspension shock absorber beam, a rear suspension rear beam, a tail beam and a towing hook;
the transmission block comprises a transmission shaft cross beam.
5. The automobile frame design method according to claim 1, wherein the vehicle type design information includes design information of all automobile blocks of the vehicle type and design information of all frame blocks of the vehicle type;
the design information of the automobile block comprises the models of all automobile assemblies contained in the automobile block, and each model of automobile assembly comprises a specified number of first connecting parts at specified positions;
the design information of the frame block comprises the models of all frame parts contained in the frame block, and each model of frame part comprises a specified number of second connecting parts at specified positions.
6. The method for designing an automobile frame according to claim 5, wherein the step of obtaining a plurality of first connection holes corresponding to the automobile assembly model comprises the following steps:
obtaining design information of all automobile blocks of the automobile type according to the design information of the automobile type;
and according to the design information of each automobile block, selecting a plurality of first connecting holes matched with the first connecting parts from all the first connecting holes corresponding to each automobile block.
7. The method for designing the automobile frame according to claim 5, wherein the step of obtaining a plurality of second connecting holes corresponding to the types of the parts of the automobile frame comprises the following specific steps:
obtaining the design information of all the frame blocks of the vehicle type according to the design information of the vehicle type;
and according to the design information of each frame block, selecting a plurality of second connecting holes matched with the second connecting parts from all the second connecting holes corresponding to each frame block.
8. The method for designing the automobile frame according to claim 1, wherein the step of outputting the design scheme of the automobile frame comprises the following steps:
judging whether first connecting holes corresponding to different automobile blocks, second connecting holes corresponding to different frame blocks and first connecting holes corresponding to the automobile blocks and second connecting holes corresponding to the frame blocks are overlapped or not, and configuring a middleware for the two overlapped connecting holes when the judging result is yes, wherein the middleware is provided with two general connecting holes; the first connecting hole, the second connecting hole and the universal connecting hole are the same in shape;
and after all the automobile blocks are installed on the longitudinal beam through the first connecting part and the first connecting hole and all the frame blocks are installed on the longitudinal beam through the second connecting part and the second connecting hole, a frame assembly and a corresponding frame assembly file are obtained, and the frame assembly file is output as a frame design scheme.
9. An automotive frame design system, the system comprising:
the granularity dividing module is used for acquiring relevant information of automobile assemblies and frame parts of all automobile types, and dividing the automobile assemblies and the frame parts into a plurality of automobile blocks and a plurality of frame blocks respectively, wherein the automobile blocks correspond to the frame blocks one to one;
the connecting hole planning module is used for respectively counting the number of first connecting parts at different positions contained in the same automobile block of all automobile types to obtain the total number of the first connecting parts of each automobile block, and configuring a plurality of groups of first connecting holes corresponding to different automobile blocks on the longitudinal beam according to the total number of the first connecting parts; the longitudinal beam is also used for respectively counting the number of second connecting parts at different positions of the same frame block of all vehicle types to obtain the total number of the second connecting parts of each frame block, and a plurality of groups of second connecting holes corresponding to different frame blocks are configured on the longitudinal beam according to the total number of the second connecting parts; the first connecting holes and the second connecting holes are uniformly distributed;
and the frame generation module is connected with the granularity division module and the connecting hole planning module and used for acquiring vehicle type design information so as to obtain the vehicle assembly models in all the vehicle chunks corresponding to the vehicle type, a plurality of first connecting holes corresponding to the vehicle assembly models, the frame part models in all the frame chunks and a plurality of second connecting holes corresponding to the frame part models and outputting a frame design scheme.
10. An automotive frame design system according to claim 9, said plurality of automotive assemblies including a frame structure assembly, a front axle area assembly, a middle area assembly, a rear axle area assembly, and a transmission assembly;
the plurality of vehicle frame blocks comprise a vehicle frame block corresponding to the vehicle frame structure assembly, a front block corresponding to the front axle area assembly, a middle block corresponding to the middle axle area assembly, a rear block corresponding to the rear axle area assembly and a transmission block corresponding to the transmission assembly.
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