CN115303386B - Automobile frame design method and system - Google Patents
Automobile frame design method and system Download PDFInfo
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- CN115303386B CN115303386B CN202210938884.XA CN202210938884A CN115303386B CN 115303386 B CN115303386 B CN 115303386B CN 202210938884 A CN202210938884 A CN 202210938884A CN 115303386 B CN115303386 B CN 115303386B
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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Abstract
The application discloses a design method and a system of an automobile frame, which relate to the technical field of automobile frames and comprise the step of dividing an automobile assembly and frame parts into a plurality of automobile unit blocks and a plurality of frame unit blocks respectively. When all the 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 frame block are calculated. Corresponding first connecting holes and second connecting holes are uniformly formed in the longitudinal beam. The vehicle model design information containing the information is obtained, and corresponding first connecting holes and second connecting holes are selected to complete frame assembly, so that a frame design scheme is obtained. After the large-granularity automobile assembly is divided, the large-granularity automobile assembly is correspondingly designed, the universal rate of the automobile assembly is improved, the multiplexing of the large-granularity automobile assembly to the connecting holes is reduced, the first connecting holes and the second connecting holes of all automobile types are further met, the repeated design of the connecting holes is avoided, and the design efficiency of the automobile frame is improved.
Description
Technical Field
The application relates to the technical field of automobile frames, in particular to an automobile frame design method and system.
Background
The frame is a frame structure which is bridged on the front axle and the rear axle of the automobile, commonly called a girder, and is a matrix of the automobile. Generally, the vehicle is composed of two longitudinal beams and several transverse beams, and is supported on wheels through a suspension device, a front axle and a rear axle. The frame functions to support and connect the assemblies of the vehicle so that the assemblies remain in a relatively correct position and are subjected to various loads from the inside and outside of the vehicle, and is required to have sufficient strength and rigidity to withstand the loads of the vehicle and impacts from the wheels. The components comprising the frame can comprise a longitudinal beam, an auxiliary beam, a frame large casting, a buffer block bracket, 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 carried out according to different platforms at present, each platform is used for carrying out iterative design on a frame of a certain vehicle type in a certain period, and partial general relations possibly exist among frame parts in the same platform, but the parts required by each frame design scheme have larger variability and randomness due to lack of overall consideration and overall planning between the platform and an external design system or different platforms, and the universalization rate of the parts involved by the frame design scheme is not high. In addition, even in the same platform, facing the current complicated and changeable user demands, the method improves the universalization rate of the frame parts and is very difficult to quickly cope with to generate the frame structure meeting the user demands.
Specifically, the reason for influencing the design efficiency of the frame may be considered from the following aspects:
firstly, when the frame design is carried out on a platform, besides longitudinal beams, the granularity of division of all other parts is too small, for example, an existing frame data structure takes a single cross beam as a frame block, the frame block which needs to be taken when one frame is completed is too many, the internal data structure of the frame is not clear enough and is too complicated, the efficient management and the use of the frame data are not facilitated, the design efficiency is too low, and when the new frame design is carried out, even if only part of the structure in the frame is changed, all the frame blocks need to be taken again to form the new frame, the part of the frame structure which is completed in the previous frame design and does not need to be changed cannot be taken, and the universalization rate of different frame designs is low.
Secondly, the frame hole positions are not managed in groups, all other selected parts are designed according to the types and types except the longitudinal beams, when the automobile frame is assembled on the longitudinal beams, the positions of the connecting holes for connecting each frame part are designed on the longitudinal beams one by one according to experience (at least one connecting part is arranged on each frame part, the connecting parts are arranged in the connecting holes, so that the frame parts are arranged on the longitudinal beams), then all automobile assemblies which are required to be arranged on the longitudinal beams are considered, the positions of the connecting holes for connecting each automobile assembly are designed on the longitudinal beams one by one according to experience (at least one connecting part is arranged on each automobile assembly, the connecting parts are arranged in the connecting holes, so that the automobile assemblies are arranged on the longitudinal beams), the distribution positions of the connecting holes can not be adjusted adaptively according to each design example, and therefore efficient hole position configuration can not be completed when the requirements of a front user are clear, and the response speed of a frame hole group file is influenced.
Disclosure of Invention
Aiming at the defects existing in the prior art, the purpose of the application is to provide an automobile frame design method and system, which can solve the problems of trivial frame assembly and complicated hole site design existing in the existing frame design and improve the frame design efficiency.
In order to achieve the above purpose, the technical scheme adopted is as follows:
a first aspect of the present application provides a method for designing a frame module, including:
acquiring related 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 and the frame blocks are in one-to-one correspondence;
counting the number of first connecting parts at different positions contained in the same automobile block of all automobile types respectively to obtain the total number of first connecting parts of each automobile block; counting the number of second connecting parts at different positions of the same frame block of all vehicle types respectively 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 modules and second connecting holes corresponding to different frame modules are configured on the longitudinal beam, and the first connecting holes and the second connecting holes are uniformly distributed;
the method comprises the steps of obtaining vehicle model design information to obtain the model of an automobile assembly in all automobile modules corresponding to the vehicle model, a plurality of first connecting holes corresponding to the model of the automobile assembly, the model of a frame part in all frame modules and a plurality of second connecting holes corresponding to the model of the frame part, and outputting a frame design scheme.
In some embodiments, the plurality of automotive assemblies includes a frame structure assembly, a front axle region assembly, a middle region assembly, a rear axle region assembly, and a transmission assembly;
the plurality of frame blocks include frame blocks corresponding to the frame structure assembly, front blocks corresponding to the front axle region assembly, middle blocks corresponding to the middle region assembly, rear blocks corresponding to the rear axle region assembly, and transmission blocks corresponding to the transmission assembly.
In some embodiments, the frame structure assembly includes all other automotive components except a front axle region assembly, a middle region assembly, a rear axle region assembly, and a drive assembly;
the front axle region assembly comprises a cab, an engine and a gearbox;
the middle area assembly comprises a double rear axle suspension;
the rear axle region assembly comprises a single rear axle suspension;
the drive assembly includes a drive shaft hanger.
In some embodiments, the frame assembly comprises a longitudinal beam, a secondary beam, a frame large casting, a bumper bracket, a saddle connection plate, and a carriage angle;
the front assembly comprises a first cross beam, a front lower pocket beam, a rear lower pocket beam and a rear cross beam of the gearbox;
the middle assembly comprises a third cross beam, a balance shaft cross beam and a longitudinal beam reinforcing plate;
the rear assembly 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 beam.
In some embodiments, the vehicle model design information includes design information of all vehicle frame blocks of the vehicle model and design information of all vehicle frame blocks of the vehicle model;
the design information of the automobile assembly comprises the types of all automobile assemblies contained in the automobile assembly, and each type of automobile assembly comprises a specified number of first connecting parts and a specified position;
the design information of the frame assembly comprises the types of all frame parts contained in the frame assembly, and the frame parts of each type comprise second connecting parts with appointed number and appointed positions.
In some embodiments, the obtaining the plurality of first connection holes corresponding to the model of the automobile assembly specifically includes the following steps:
obtaining design information of all automobile blocks of the automobile type according to the design information of the automobile type;
according to the design information of each automobile block, a plurality of first connecting holes matched with the first connecting parts are selected from all the first connecting holes corresponding to each automobile block.
In some embodiments, the obtaining the plurality of second connection holes corresponding to the model of the frame part includes the following specific steps:
according to the design information of the vehicle type, obtaining the design information of all frame blocks of the vehicle type;
and selecting a plurality of second connecting holes matched with the second connecting parts from all the second connecting holes corresponding to each frame block according to the design information of each frame block.
In some embodiments, the output frame design scheme comprises the following specific steps:
judging whether overlapping exists among the first connecting holes corresponding to different automobile blocks, among the second connecting holes corresponding to different frame blocks and among the first connecting holes corresponding to the automobile blocks and the second connecting holes corresponding to the frame blocks, and if so, configuring an intermediate piece for the two overlapped connecting holes, wherein the intermediate piece is provided with two general connecting holes; the first connecting hole, the second connecting hole and the universal connecting hole have the same shape;
after all the automobile frame blocks are installed on the longitudinal beam through the first connecting parts and the first connecting holes, and all the automobile frame blocks are installed on the longitudinal beam through the second connecting parts and the second connecting holes, a frame assembly and corresponding frame assembly files are obtained, and the frame assembly files are output as a frame design scheme.
A second aspect of the present application provides an automotive frame design system, the system comprising:
the granularity dividing module is used for acquiring related information of automobile assemblies and frame parts of all automobile types, dividing the automobile assemblies and the frame parts into a plurality of automobile group blocks and a plurality of frame blocks respectively, wherein the automobile group blocks and the frame blocks are in one-to-one correspondence;
the connecting hole planning module is used for counting the number of first connecting parts at different positions contained in the same automobile assembly of all automobile types respectively to obtain the total number of the first connecting parts of each automobile assembly, and a plurality of groups of first connecting holes corresponding to different automobile assemblies are configured on the longitudinal beam according to the total number of the first connecting parts; the system is also used for counting the number of second connecting parts at different positions of the same frame block of all vehicle types respectively 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;
the vehicle frame generation module is connected with the granularity dividing module and the connecting hole planning module and is used for acquiring vehicle model design information so as to obtain the vehicle assembly model of all vehicle modules corresponding to the vehicle model, a plurality of first connecting holes corresponding to the vehicle assembly model, the vehicle frame part model of all vehicle frame modules and a plurality of second connecting holes corresponding to the vehicle frame part model, and outputting a vehicle frame design scheme.
In some embodiments, the plurality of automotive assemblies includes a frame structure assembly, a front axle region assembly, a middle region assembly, a rear axle region assembly, and a transmission assembly;
the plurality of frame blocks include frame blocks corresponding to the frame structure assembly, front blocks corresponding to the front axle region assembly, middle blocks corresponding to the middle region assembly, rear blocks corresponding to the rear axle region assembly, and transmission blocks corresponding to the transmission assembly.
The beneficial effects that technical scheme that this application provided brought include:
the automobile frame is divided into a frame structure assembly, a transmission assembly and other assemblies according to the functions of each automobile assembly, the automobile frame is divided into a front axle area assembly, a middle area assembly and a rear area assembly according to the installation positions in the other assemblies, when the automobile frame is designed, all frame parts are also divided into frame blocks, a front part block, a middle part block, a rear part block and a transmission block according to the frame structure assembly, the front axle area assembly, the middle part area assembly, the rear axle area assembly and the transmission assembly, and the automobile frame is designed in a mode of five blocks, so that the structural unchanged part blocks can be prevented from being redesigned when the automobile frame is iterated, the general rate of the automobile frame blocks is improved, and the design efficiency of the automobile frame is improved.
Because the design of each frame assembly considers corresponding automobile assembly, for example, the model of the adopted frame part is selected by matching with the automobile assembly, when the user designs each frame assembly, the model of the frame part in each frame assembly can be selected by combining with the automobile assembly, and multiplexing or interference is avoided when the frame assembly and the model of the frame part in each frame assembly are mounted on a longitudinal beam.
Because the first connecting holes required by the first connecting parts of each automobile assembly are fixed on the longitudinal beam, and the positions of the first connecting holes are not fixed, after the first connecting parts of all different positions possibly contained in the same automobile assembly of all automobile types are obtained, the first connecting holes which are enough for all automobile types to use are designed on the longitudinal beam for each automobile assembly, and the first connecting holes are uniformly distributed, and when the subsequent automobile construction is carried out, no matter how the structure of an automobile is changed, proper hole positions can be selected from the designed first connecting holes, so that the frame design efficiency is improved.
Because the number of the second connecting holes required on the total installation amount of the second connecting parts of each frame block is fixed, and the positions of the second connecting holes are not fixed, after the number of the second connecting parts of all different positions possibly contained in the frame blocks of all vehicle types is obtained, the second connecting holes which are enough for all vehicle types to use 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 vehicle frame design efficiency is improved.
Drawings
FIG. 1 is a flow chart of a method for designing an automotive frame in an embodiment of the invention.
Fig. 2 is a schematic distribution diagram of the first connection holes in an embodiment of the invention.
Fig. 3 is a schematic diagram of functional modules of an automotive frame design system according to an embodiment of the invention.
Detailed Description
The present application is described in further detail below 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 automotive frame, which includes dividing an automotive assembly and frame components into a plurality of automotive block and a plurality of frame block, respectively. 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 are calculated when all automobile types are involved. Corresponding first connecting holes 4 and second connecting holes are uniformly formed in the longitudinal beam. And acquiring the vehicle model design information containing the block design information, and selecting the corresponding first connecting hole 4 and second connecting hole to complete the frame assembly, thereby obtaining the frame design scheme.
In this embodiment, after dividing the car group piece, the frame group piece of corresponding design big granularity, when improving frame group piece general rate, reduce the multiplexing of both to the connecting hole, through the first connecting hole 4 and the second connecting hole that satisfy all motorcycle types, avoid repeated design connecting hole, reduce frame special part quantity, reduce the whole manufacturing of frame and reduction in production cost, improve frame design efficiency.
Specifically, the automobile frame design method comprises the following steps:
s1, 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 and the frame blocks are in one-to-one correspondence.
Step S2, counting the number of first connecting parts at different positions contained in the same automobile block of all automobile types respectively to obtain the total number of first connecting parts of each automobile block; and counting the number of the second connecting parts at different positions of the same frame block of all the vehicle types respectively to obtain the total number 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 modules and second connecting holes corresponding to different frame modules 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 the vehicle assembly types in all the vehicle blocks corresponding to the vehicle type, a plurality of first connecting holes 4 corresponding to the vehicle assembly types, the vehicle frame part types in all the vehicle frame blocks and a plurality of second connecting holes corresponding to the vehicle frame part types, and outputting a vehicle frame design scheme.
In this embodiment, the frames are currently classified into a ladder frame, a spine frame, a peripheral frame, and a truss frame according to different structural forms. The trapezoid frame consists of two longitudinal beams and a plurality of cross beams, wherein the cross sections of the longitudinal beams are groove-shaped, Z-shaped or box-shaped, and the longitudinal beams can be made into curved, equal-section or variable-section in a horizontal plane or a longitudinal plane. The trapezoid frame has large bending strength, is convenient to install and fasten parts, is widely applied to commercial trucks and partial buses, and is rarely applied to passenger cars. The spine frame has only one centrally located longitudinal beam extending through the front and rear of the vehicle, and the longitudinal beam may be tubular or box in cross-sectional shape. The ridge beam type frame has the advantages of small frame mass, high strength and high rigidity, can improve the passing capacity of an automobile when being matched with an independent suspension, and has the defects of high manufacturing precision requirement and difficult maintenance. The middle part of the frame of the peripheral frame is widened, no cross beam is arranged, and the main parts of the frame are usually closed sections. The peripheral frame is applied to a passenger car with large displacement due to low floor height, large passenger cabin volume, simple structure, small mass, easy manufacture and the like. The truss type frame is formed by welding steel pipes in a combined mode. The novel bicycle has the characteristics of high rigidity and low mass, is difficult to manufacture, and is mainly used for racing bicycles. The method is suitable for the various existing frame structures.
In a preferred embodiment, the plurality of automotive assemblies includes a frame structure assembly, a front axle region assembly, a middle region assembly, a rear axle region assembly, and a transmission assembly.
The plurality of frame blocks includes a frame block corresponding to the frame structure assembly, a front block corresponding to the front axle region assembly, a middle block corresponding to the middle region assembly, a rear block corresponding to the rear axle region assembly, and a transmission block corresponding to the transmission assembly.
In this embodiment, according to the functions of each automobile assembly, the automobile assembly is divided into a frame structure assembly, a transmission assembly and other assemblies, according to the installation positions in the other assemblies, the automobile assembly is divided into a front axle region assembly, a middle region assembly and a rear region assembly, when the automobile frame is designed, according to the frame structure assembly, the front axle region assembly, the middle region assembly, the rear axle region assembly and the transmission assembly, all the automobile frame parts are also divided into frame blocks, a front part block, a middle part block, a rear part block and a transmission block, and the automobile frame is designed in a five-block mode, so that the redesign of the partial blocks with unchanged structures during the iteration of the automobile frame can be avoided, the general rate of the automobile frame blocks is improved, and the design efficiency of the automobile frame is improved.
In a preferred embodiment, the frame structure assembly includes all of the vehicle components except the front axle region assembly, the mid-region assembly, the rear axle region assembly, and the drive train assembly. The front axle region assembly includes a cab, an engine, and a transmission. The mid-region assembly includes a dual rear axle suspension. The rear axle region assembly includes a single rear axle suspension. The drive assembly includes a drive shaft hanger. The drive assembly includes a drive shaft hanger.
The frame assembly comprises a longitudinal beam, an auxiliary beam, a frame large casting, a buffer block bracket, a saddle connecting plate and carriage angle irons. The auxiliary beam is an integral auxiliary beam and is matched with the longitudinal beam. The front assembly comprises a first cross beam, a front lower pocket beam, a rear lower pocket beam and a rear cross beam of the gearbox. The middle assembly comprises a third cross beam, a balance shaft cross beam and a longitudinal beam reinforcing plate. The beam reinforcing plate is especially one local reinforcing auxiliary beam and is used in cooperation with the cross beam. The rear assembly 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 beam.
In this embodiment, the front block is located at the front of the frame, being the cab, frame rails and components of the engine area, primarily related to the cab style and the engine and gearbox type. The middle component is positioned in the middle of the frame and comprises a balance shaft cross beam and the like, and is mainly related to the double-rear-axle suspension type. The rear block is positioned at the rear part of the frame and mainly relates to a single rear axle suspension form and a tail cross beam. The transmission block is used for installing frame system parts such as a cross beam of a transmission shaft hanging bracket. The frame assembly mainly refers to frame system parts such as longitudinal beams, auxiliary beams, front end large castings, saddle connecting plates and the like except for a front assembly, a middle assembly, a rear assembly and a transmission assembly.
According to the demands of all the market segments of users, the demands of all the market segments are met by the minimum frame block planning, the frame assembly is divided into the five frame blocks according to the positions and the functions, and when the frame structure is updated, only the updated frame blocks are required to be redesigned. Each frame block internally comprises parts such as a frame cross beam and the like in a corresponding area.
The frame block comprises 32 deformed longitudinal beams, 14 deformed auxiliary beams, 8 deformed frame large castings, 2 deformed buffer block brackets, 5 deformed saddle connecting plates and 2 deformed carriage angle irons. For example, a variety of deformed stringers are derived based on several dimensions, such as frame outer width, stringer cross-section height, stringer airfoil height, stringer thickness, sub-beam thickness, weight parameters of a heavy truck, and drive style.
The front block comprises 7 deformed first cross beams, 5 deformed front lower pocket beams, 7 deformed rear lower pocket beams and 8 deformed rear cross beams of the gearbox. For example, the first cross member of various deformations is obtained based on several dimensions such as the outer width of the frame, the interface, and the use (general purpose for engineering vehicles, general purpose for road vehicles, special use for fixed snow shovels, or for fixed batteries, etc.).
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 cross member of various deformations is obtained based on the frame outer width, the longitudinal and secondary beam thickness, and several dimensions of the cross member cross section form (8+4 type beams, 8+4 arched beams, 8+6 arched beams, or 8+8 arched beams).
The rear assembly comprises 3 deformed round pipe beam assemblies, 12 deformed rear suspension front beams, 1 deformed rear suspension shock absorber beam, 9 deformed rear suspension rear beams, 19 deformed tail beams and 6 deformed towing hooks. For example, a variety of deformed round tube beams are obtained based on several dimensions such as the frame outer width, the longitudinal beam and the secondary beam thickness.
The drive block contains 7 deformed drive shaft beams. For example, a variety of deformed propeller shaft cross beams are obtained based on several dimensions of the frame outer width, the longitudinal beam and the secondary beam thickness, etc.
In a preferred embodiment, the model design information includes design information for all of the vehicle frame blocks of the model and design information for all of the vehicle frame blocks of the 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 specified number of first connecting parts and specified positions.
The design information of the frame block includes models of all frame parts included in the frame block, and the frame parts of each model include second connecting portions of a specified number and a specified position.
In a preferred embodiment, a plurality of first connection holes 4 corresponding to the type of the automobile assembly are obtained, and the specific steps are as follows:
and obtaining the design information of all the automobile blocks of the automobile type according to the design information of the automobile type.
According to the design information of each automobile block, a plurality of first connection holes 4 matching the first connection parts are selected from all the first connection holes 4 corresponding to each automobile block.
In a preferred embodiment, a plurality of second connecting holes corresponding to the model of the frame part are obtained, and the specific steps are as follows:
and obtaining the design information of all the frame blocks of the vehicle type according to the design information of the vehicle type.
And selecting a plurality of second connecting holes matched with the second connecting parts from all the second connecting holes corresponding to each frame block according to the design information of each frame block.
In this embodiment, taking an example in which the frame includes two relatively parallel longitudinal beams, all the frame parts 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 firstly, and then each automobile assembly is matched after the frame is designed. There is a problem in that, when different automobile assemblies are mounted on the stringers, there may be different automobile assemblies that need to share the same first mounting hole or interference between different automobile assemblies cannot coexist in space due to lack of overall planning of the first mounting hole. When different frame parts are mounted on the longitudinal beam, due to the lack of integral planning of the second mounting holes, the fact that the different frame parts need to share the same second mounting holes or interference among the different frame parts can not coexist in space is possible.
After the scheme is adopted, as the design of each frame block considers the corresponding automobile assembly, for example, the model of the adopted frame part is selected by matching with the automobile assembly, when the user designs each frame block, the model of the frame part in each frame block can be selected by combining with the automobile assembly, and multiplexing or interference is avoided when the frame part and the frame part are mounted on the longitudinal beam.
Because the number of the first connecting holes 4 required by the first connecting parts of each automobile assembly is fixed on the longitudinal beam, and the positions of the first connecting holes 4 are not fixed, after the number of the first connecting parts of all different positions possibly contained in the same automobile assembly of all automobile types is obtained, the first connecting holes 4 which are enough for all automobile types are designed on the longitudinal beam for each automobile assembly, and the first connecting holes 4 are uniformly distributed, and when the subsequent running is constructed, no matter how the structure of the automobile is changed, proper hole positions can be selected from the designed first connecting holes 4, so that the frame design efficiency is improved.
Because the number of the second connecting holes required on the total installation amount of the second connecting parts of each frame block is fixed, and the positions of the second connecting holes are not fixed, after the number of the second connecting parts of all different positions possibly contained in the frame blocks of all vehicle types is obtained, the second connecting holes which are enough for all vehicle types to use 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 vehicle frame design efficiency is improved.
As shown in fig. 2, the first connection holes 4 are uniformly distributed at a first fixed pitch in the X-axis direction and at a second fixed pitch in the Z-axis direction, and the first fixed pitch and the second fixed pitch can be adjusted according to design requirements.
In a preferred embodiment, the output frame design scheme comprises the following specific steps:
judging whether overlapping exists among the first connecting holes 4 corresponding to different automobile blocks, among the second connecting holes corresponding to different frame blocks and among the first connecting holes 4 corresponding to the automobile blocks and the second connecting holes corresponding to the frame blocks, and if so, configuring an intermediate piece for the two overlapped connecting holes, wherein the intermediate piece is provided with two general connecting holes; the first connection hole 4, the second connection hole, and the general connection hole have the same shape.
After all the automobile frame modules are installed on the longitudinal beam through the first connecting parts and the first connecting holes 4, and all the automobile frame modules are installed on the longitudinal beam through the second connecting parts and the second connecting holes, the automobile frame assembly and corresponding automobile frame assembly files are obtained, and the automobile frame assembly files are output as an automobile frame design scheme.
In this embodiment, the method for constructing the frame BOM (bill of materials) data is to construct modules according to five modules of the frame block, the front block, the middle block, the rear block and the transmission block under the guiding thought of the frame block design method, then to select the characteristics according to the customer requirements, to obtain the vehicle type design information according to a certain rule (for example, classification of vehicle type use), to form a certain frame assembly configuration according to the vehicle type design information, and finally to obtain the vehicle frame assembly meeting the customer requirements after the vehicle is selected according to the customer requirement characteristics.
The frame hole site information is grouped by fine hole site data, and simultaneously, the system hole site data is associated and mapped with the technical characteristics of the whole vehicle (representing the user demand characteristics), so that the corresponding frame Kong Zuzi module (contained in the frame assembly) meeting the user demand can be generated by the demand checking of the technical characteristics of the whole vehicle (representing the user demand characteristics),
the frame hole group submodule information is provided for the frame longitudinal beam, a CAD system is provided for efficiently and accurately automatically converting the frame hole group submodule information into the complete hole position information of the frame longitudinal beam, the system hole group information is modularly designed and managed like the frame parts, and the full-scale implementation of the frame modularization is powerfully supported. The efficiency of the frame hole site on the 3D frame longitudinal beam model is improved, meanwhile, the accuracy is guaranteed, original hundreds of punching information is completely input by the designer manually, time and labor are consumed, and misoperation is easy to occur.
As shown in fig. 3, the application also discloses an automobile frame design system, which comprises a granularity dividing module 1, a connecting hole planning module 2 and a frame generating module 3.
The granularity dividing module 1 is used for acquiring related information of automobile assemblies and frame parts of all automobile types, 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 and the frame blocks are in one-to-one correspondence.
The connecting hole planning module 2 is used for counting the number of first connecting parts at different positions, which are included in the same automobile block of all automobile types, so as to obtain the total number of the first connecting parts of each automobile block, and a plurality of groups of first connecting holes 4 corresponding to different automobile blocks are configured on the longitudinal beam according to the total number of the first connecting parts. The system is also used for counting the number of second connecting parts at different positions of the same frame block of all vehicle types respectively 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 4 and the second connecting holes are uniformly distributed.
The frame generation module 3 is connected with the granularity dividing module 1 and the connecting hole planning module 2 and is used for obtaining the vehicle type design information so as to obtain the vehicle assembly model of all the vehicle blocks corresponding to the vehicle type, a plurality of first connecting holes 4 corresponding to the vehicle assembly model, the frame part model of all the frame blocks and a plurality of second connecting holes corresponding to the frame part model, and outputting a frame design scheme.
In this embodiment, the granularity dividing module 1 determines the cross-section size parameters of the frame longitudinal beam and the auxiliary beam according to the load and the working condition, then combines the matching requirement and the arrangement requirement of the whole vehicle cab and the power assembly, further confirms the outer width parameters of the frame, and finally confirms the arrangement position and the form of the cross beam. The frame blocks comprise frame blocks corresponding to the frame structure assembly, front blocks corresponding to the front axle region assembly, middle blocks corresponding to the middle region assembly, rear blocks corresponding to the rear axle region assembly and transmission blocks corresponding to the transmission assembly.
Each frame block establishes association and mapping relation with the technical characteristics of the whole vehicle (representing the characteristics of user demands), and the corresponding frame blocks meeting the user demands can be generated through the demand checking of the technical characteristics of the whole vehicle, and the frame blocks are automatically combined into frame assembly products for the whole vehicle to select according to the frame configuration defined before.
Corresponding first connecting holes 4 are designed for each automobile assembly, corresponding first connecting holes 4 are designed for each frame assembly, system hole group data are associated and mapped with the technical characteristics of the whole automobile (representing the user demand characteristics), so that corresponding frame hole groups meeting the user demand can be generated through the demand selection of the technical characteristics of the whole automobile, relevant information of the frame hole groups is provided for frame longitudinal beams, a CAD system is provided for efficiently and accurately automatically converting the relevant information into the complete used hole site information of the frame longitudinal beams, the modularized design and management are carried out on the system hole group information, and the omnibearing implementation of frame modularization is powerfully supported.
The control system of the present embodiment is applicable to the above-described respective control methods.
The present application is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that modifications and variations can be made without departing from the principles of the present application, and such modifications and variations are also considered to be within the scope of the present application.
Claims (9)
1. A method of designing an automotive frame, comprising:
acquiring related 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 and the frame blocks are in one-to-one correspondence;
counting the number of first connecting parts at different positions contained in the same automobile block of all automobile types respectively to obtain the total number of first connecting parts of each automobile block; counting the number of second connecting parts at different positions of the same frame block of all vehicle types respectively 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 modules and second connecting holes corresponding to different frame modules are configured on the longitudinal beam, and the first connecting holes and the second connecting holes are uniformly distributed;
acquiring vehicle type design information to obtain a vehicle assembly model in all vehicle blocks corresponding to the vehicle type, a plurality of first connecting holes corresponding to the vehicle assembly model, a vehicle frame part model in all vehicle frame blocks and a plurality of second connecting holes corresponding to the vehicle frame part model, and outputting a vehicle frame design scheme; the design scheme of the output frame comprises the following specific steps:
judging whether overlapping exists among the first connecting holes corresponding to different automobile blocks, among the second connecting holes corresponding to different frame blocks and among the first connecting holes corresponding to the automobile blocks and the second connecting holes corresponding to the frame blocks, and if so, configuring an intermediate piece for the two overlapped connecting holes, wherein the intermediate piece is provided with two general connecting holes; the first connecting hole, the second connecting hole and the universal connecting hole have the same shape;
after all the automobile frame blocks are installed on the longitudinal beam through the first connecting parts and the first connecting holes, and all the automobile frame blocks are installed on the longitudinal beam through the second connecting parts and the second connecting holes, a frame assembly and corresponding frame assembly files are obtained, and the frame assembly files are output as a frame design scheme.
2. The method of designing an automotive vehicle frame of claim 1, wherein the plurality of automotive vehicle assemblies includes a frame structure assembly, a front axle region assembly, a middle region assembly, a rear axle region assembly, and a transmission assembly;
the plurality of frame blocks include frame blocks corresponding to the frame structure assembly, front blocks corresponding to the front axle region assembly, middle blocks corresponding to the middle region assembly, rear blocks corresponding to the rear axle region assembly, and transmission blocks corresponding to the transmission assembly.
3. The method of designing an automotive vehicle frame as defined in claim 2, wherein said frame structure assembly includes all other automotive parts except a front axle area assembly, a middle area assembly, a rear axle area assembly, and a transmission assembly;
the front axle region assembly comprises a cab, an engine and a gearbox;
the middle area assembly comprises a double rear axle suspension;
the rear axle region assembly comprises a single rear axle suspension;
the drive assembly includes a drive shaft hanger.
4. The method of designing an automotive frame of claim 2 wherein the frame assembly comprises stringers, sub-beams, frame large castings, bumper brackets, saddle connection plates, and car angle irons;
the front assembly comprises a first cross beam, a front lower pocket beam, a rear lower pocket beam and a rear cross beam of the gearbox;
the middle assembly comprises a third cross beam, a balance shaft cross beam and a longitudinal beam reinforcing plate;
the rear assembly 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 beam.
5. The automobile frame design method according to claim 1, wherein the vehicle model design information includes design information of all vehicle frame blocks of the vehicle model and design information of all vehicle frame blocks of the vehicle model;
the design information of the automobile assembly comprises the types of all automobile assemblies contained in the automobile assembly, and each type of automobile assembly comprises a specified number of first connecting parts and a specified position;
the design information of the frame assembly comprises the types of all frame parts contained in the frame assembly, and the frame parts of each type comprise second connecting parts with appointed number and appointed positions.
6. The method for designing a vehicle frame according to claim 5, wherein the obtaining the plurality of first connecting holes corresponding to the model of the vehicle assembly comprises the following specific steps:
obtaining design information of all automobile blocks of the automobile type according to the design information of the automobile type;
according to the design information of each automobile block, a plurality of first connecting holes matched with the first connecting parts are selected from all the first connecting holes corresponding to each automobile block.
7. The method for designing a vehicle frame according to claim 5, wherein the obtaining the plurality of second connecting holes corresponding to the model of the vehicle frame component comprises the following specific steps:
according to the design information of the vehicle type, obtaining the design information of all frame blocks of the vehicle type;
and selecting a plurality of second connecting holes matched with the second connecting parts from all the second connecting holes corresponding to each frame block according to the design information of each frame block.
8. An automotive frame design system, said system comprising:
the granularity dividing module is used for acquiring related information of automobile assemblies and frame parts of all automobile types, dividing the automobile assemblies and the frame parts into a plurality of automobile group blocks and a plurality of frame blocks respectively, wherein the automobile group blocks and the frame blocks are in one-to-one correspondence;
the connecting hole planning module is used for counting the number of first connecting parts at different positions contained in the same automobile assembly of all automobile types respectively to obtain the total number of the first connecting parts of each automobile assembly, and a plurality of groups of first connecting holes corresponding to different automobile assemblies are configured on the longitudinal beam according to the total number of the first connecting parts; the system is also used for counting the number of second connecting parts at different positions of the same frame block of all vehicle types respectively 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;
the vehicle frame generation module is connected with the granularity dividing module and the connecting hole planning module and is used for acquiring vehicle type design information to obtain a vehicle assembly model in all vehicle blocks corresponding to the vehicle type, a plurality of first connecting holes corresponding to the vehicle assembly model, a vehicle frame part model in all vehicle frame blocks and a plurality of second connecting holes corresponding to the vehicle frame part model, and outputting a vehicle frame design scheme; the frame generation module is further used for judging whether overlapping exists among first connecting holes corresponding to different automobile blocks, among second connecting holes corresponding to different frame blocks and among the first connecting holes corresponding to the automobile blocks and the second connecting holes corresponding to the frame blocks, and if so, configuring an intermediate piece for the two overlapped connecting holes, wherein the intermediate piece is provided with two general connecting holes; the first connecting hole, the second connecting hole and the universal connecting hole have the same shape; the frame generating module is further used for installing all the automobile blocks on the longitudinal beam through the first connecting portions and the first connecting holes, and after all the frame blocks are installed on the longitudinal beam through the second connecting portions and the second connecting holes, obtaining frame assemblies and corresponding frame assembly files, and outputting the frame assembly files as a frame design scheme.
9. The automotive frame design system of claim 8, wherein the plurality of automotive assemblies includes a frame structure assembly, a front axle region assembly, a middle region assembly, a rear axle region assembly, and a transmission assembly;
the plurality of frame blocks include frame blocks corresponding to the frame structure assembly, front blocks corresponding to the front axle region assembly, middle blocks corresponding to the middle region assembly, rear blocks corresponding to the rear axle region assembly, and transmission blocks corresponding to the transmission assembly.
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