CN107256671B - Outer model framework of whole vehicle and manufacturing method thereof - Google Patents
Outer model framework of whole vehicle and manufacturing method thereof Download PDFInfo
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- CN107256671B CN107256671B CN201710595055.5A CN201710595055A CN107256671B CN 107256671 B CN107256671 B CN 107256671B CN 201710595055 A CN201710595055 A CN 201710595055A CN 107256671 B CN107256671 B CN 107256671B
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Abstract
The invention discloses a whole vehicle outer model framework, which comprises: main skeleton and sub-skeleton, datum point. The sub-framework is arranged on the main framework. The datum points are distributed on the main framework and used for installing an exterior decoration detaching piece. Wherein the size of the main framework is determined according to the fairing data of different vehicle types based on the same platform. The invention also discloses a manufacturing method of the whole vehicle outer model framework, which is used for manufacturing the whole vehicle outer model frameworks of different vehicle types based on the same platform, and the method comprises the following steps: acquiring fairing data of different vehicle types based on the same platform, and superposing the fairing data of different vehicle types; determining the size of the outer model framework of the whole vehicle by taking the disassembled parts at the same parts of each vehicle type as units based on the superposed fairing data; and determining a datum point on the outer model framework of the whole vehicle by taking the disassembled parts at the same parts of each vehicle type as units, wherein the datum point is used for installing the disassembled parts of the outer decorations.
Description
Technical Field
The invention relates to the field of automobile manufacturing, in particular to an outer model framework of a whole automobile and a manufacturing method thereof.
Background
In the process of automobile development, when the model fairing data development approaches to the tail sound, a physical model is required to be manufactured to check the appearance state of the fairing data in a real environment, particularly the check of detail data such as round corners, seams and fall between parts. The fairing data checked by this node will be provided as frozen data to the batch mold opening. For the data inspection model, the requirements of high manufacturing precision, short manufacturing period, good rigidity and stable size are met. The visual data inspection whole vehicle external model is a model for inspecting the external data appearances of doors and windows and the peripheries of front and rear doors and windows by taking a vehicle interior as a gray area while inspecting the smooth data of the whole vehicle. The interior decoration parts of the door are required to be visible through the car window, so that the door is named as a visual data inspection whole car outer model. Visual data inspection whole car outer model part quantity is many, need make the skeleton as the benchmark and the carrier of part assembly. The whole vehicle precision of the whole vehicle external model is controlled to be +/-0.4 mm through data inspection, the precision requirements of fillets, seams and drops among parts are controlled to be +/-0.05 mm, the precision is always kept stable in the whole model manufacturing process, and only a few weeks are shortened from the final version of fairing data distribution to the completion of model manufacturing, so that the framework manufacturing prepared in the early stage has higher precision, manufacturing period, rigidity and dimensional stability requirements.
Disclosure of Invention
According to an embodiment of the present invention, a vehicle outer model skeleton is provided, including: main skeleton and branch skeleton, datum point. The sub-framework is arranged on the main framework. The datum points are distributed on the main framework and used for installing an exterior decoration detaching piece. Wherein the size of the main skeleton is determined according to the fairing data of different vehicle types based on the same platform.
In one embodiment, the entire outer model skeleton is used to manufacture different vehicle models based on the same platform.
In one embodiment, fairing data of different vehicle types based on the same platform are overlapped, and the size of the whole vehicle outer model framework is determined by taking a disassembled part at the same part of each vehicle type as a unit based on the overlapped fairing data.
In one embodiment, based on the superposed fairing data, the inner fairing data is selected, and the size of the main framework is determined by taking the disassembly of the parts at the same parts of each vehicle type as a unit and according to the minimum safe distance from the fairing data of each disassembly to the main framework.
In one embodiment, the datum points include a fixed datum point, a locating datum point, and a linear bearing guide mounting point.
In one embodiment, mutually overlapped parts in the fairing data contour of the same part disassembled part of different vehicle types are determined, the mutually overlapped parts form a line segment set, and the reference points comprise a fixed reference point, a positioning reference point and a linear bearing guide sleeve mounting point which are distributed in the line segment set.
In one embodiment, the sub-chassis comprises a trunk lid sub-chassis.
In one embodiment, the fairing data is fairing data for the outer contour of the vehicle model.
According to an embodiment of the invention, a method for manufacturing a whole vehicle outer model framework is provided, which is used for manufacturing the whole vehicle outer model frameworks of different vehicle types based on the same platform, and the method comprises the following steps:
acquiring fairing data of different vehicle types based on the same platform, and superposing the fairing data of different vehicle types;
determining the size of the outer model framework of the whole vehicle by taking the disassembled parts at the same parts of each vehicle type as units based on the superposed fairing data;
and determining a datum point on the outer model framework of the whole vehicle by taking the disassembled parts at the same parts of each vehicle type as units, wherein the datum point is used for installing the disassembled parts of the outer decorations.
In one embodiment, the entire vehicle outer model skeleton includes a main skeleton and a sub-skeleton.
In one embodiment, the inside fairing data is selected based on the overlaid fairing data, and the size of the main framework is determined according to the minimum safety distance from the fairing data of each disassembled part to the main framework by taking the disassembled parts at the same parts of each vehicle type as a unit.
In one embodiment, the sub-chassis comprises a trunk lid sub-chassis.
In one embodiment, the fairing data is fairing data for the outer contour of the vehicle.
In one embodiment, the datum points are distributed on the main framework, and the datum points comprise fixed datum points, positioning datum points and linear bearing guide sleeve mounting points.
In one embodiment, mutually overlapped parts in the fairing data contour of the same part disassembled part of different vehicle types are determined, the mutually overlapped parts form a line segment set, and the reference points comprise a fixed reference point, a positioning reference point and a linear bearing guide sleeve mounting point which are distributed in the line segment set.
The whole vehicle external model framework has universality, can be planned and manufactured before the starting of a visual whole vehicle external model project, can be repeatedly utilized aiming at a visual whole vehicle data inspection model of a same-level vehicle type, meets the requirements on rigidity, dimensional stability and precision, greatly reduces the manufacturing cost and shortens the project cycle.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings in which like reference numerals denote like features throughout the several views, wherein:
fig. 1 discloses a schematic diagram for determining the X and Y direction dimensions of a main frame in a vehicle external model frame according to an embodiment of the invention.
Fig. 2 discloses a schematic diagram for determining the dimension of the main frame in the Z direction in the entire vehicle outer model frame according to an embodiment of the invention.
Fig. 3 discloses a schematic mounting diagram of a trunk lid sub-frame in a whole vehicle outer model frame according to an embodiment of the invention.
Fig. 4 discloses a schematic distribution diagram of reference points of a front bumper on a whole vehicle outer model framework according to an embodiment of the invention.
Fig. 5 is a schematic diagram showing the distribution of datum points of the fender on the whole outer model skeleton according to an embodiment of the invention.
Fig. 6 shows a distribution diagram of datum points of the engine cover on the whole outer model frame according to an embodiment of the invention.
Fig. 7 discloses a distribution diagram of the datum points of the upper side walls and the doors of the whole vehicle outer model framework according to an embodiment of the invention.
Fig. 8 discloses a distribution diagram of datum points of a rear bumper on the whole outer model skeleton according to an embodiment of the invention.
Fig. 9 discloses a schematic view of a main frame machining reference, an interior trim installation operation space and a shaft mechanism installation surface in a whole vehicle outer model frame according to an embodiment of the invention.
Fig. 10 is a schematic view of the installation of the measurement reference of the whole vehicle on the main frame of the external model frame of the whole vehicle according to an embodiment of the invention.
Fig. 11 is a schematic diagram of a jacking mechanism for mounting engine cover parts on a main frame of an external model frame of a whole vehicle according to an embodiment of the invention.
Detailed Description
The invention provides a whole vehicle outer model framework, which comprises: main skeleton and sub-skeleton, datum point. The sub-framework is arranged on the main framework. The datum points are distributed on the main framework and used for installing an exterior decoration detaching piece. Wherein the size of the main framework is determined according to the fairing data of different vehicle types based on the same platform. The sub-framework comprises a sub-framework of the trunk cover. And the fairing data is fairing data of the outer contour of the vehicle type.
The whole vehicle outer model framework is used for manufacturing different vehicle types based on the same platform.
And based on the fairing data of different vehicle types of the same platform, determining the size of the whole vehicle external model framework by taking the disassembled parts at the same parts of each vehicle type as a unit based on the overlaid fairing data. In one embodiment, the inside fairing data is selected based on the overlaid fairing data, and the size of the main framework is determined according to the minimum safety distance from the fairing data of each disassembled part to the main framework by taking the disassembled parts at the same parts of each vehicle type as a unit.
The datum points comprise fixed datum points, positioning datum points and mounting points of the linear bearing guide sleeves. In one embodiment, mutually overlapped parts in the fairing data contour of the same part disassembled part of different vehicle types are determined, the mutually overlapped parts form a line segment set, and the reference points comprise a fixed reference point, a positioning reference point and a linear bearing guide sleeve mounting point which are distributed in the line segment set.
The invention also provides a manufacturing method of the whole vehicle outer model framework, which is used for manufacturing the whole vehicle outer model frameworks of different vehicle types based on the same platform, and the method comprises the following steps:
acquiring fairing data of different vehicle types based on the same platform, and superposing the fairing data of different vehicle types;
determining the size of the outer model framework of the whole vehicle by taking the disassembled parts at the same parts of each vehicle type as units based on the superposed fairing data;
and determining a datum point on the outer model framework of the whole vehicle by taking the disassembled parts at the same parts of each vehicle type as units, wherein the datum point is used for installing the disassembled parts of the outer decorations.
The whole vehicle outer model framework comprises a main framework and a sub-framework. The sub-framework comprises a sub-framework of the trunk cover.
And based on the superposed fairing data, selecting the inner fairing data, taking the disassembly parts at the same parts of all vehicle types as units, and determining the size of the main framework according to the minimum safety distance from the fairing data of each disassembly part to the main framework.
And the fairing data is fairing data of the outer contour of the vehicle type.
The datum points are distributed on the main framework and comprise fixed datum points, positioning datum points and mounting points of the linear bearing guide sleeves.
Determining mutually overlapped parts in the fairing data profiles of the parts disassembled at the same parts of different vehicle types, wherein the mutually overlapped parts form a line segment set, and the reference points comprise fixed reference points, positioning reference points and linear bearing guide sleeve mounting points which are distributed in the line segment set.
Fig. 1 discloses a schematic diagram for determining the X and Y direction dimensions of a main frame in a whole vehicle external model frame according to an embodiment of the invention. The respective reference numerals in fig. 1 are as follows. 1: vehicle type a's whole car fairing data profile based on same platform, 2: finished automobile fairing data profile of different automobile types B based on the same platform, 3: main skeleton cross section profile of the whole vehicle outer model, 4: wheel axle spacing of this platform motorcycle type, 5: minimum safe distance from the front bumper fairing data to the main framework, 6: the minimum safe distance from the fairing data of the front fender to the main framework, 7: side wall and door smooth data to main skeleton minimum safe distance, 8: rear fender fairing data to main frame minimum safe distance, 9: and the minimum safe distance from the fairing data of the rear bumper to the main framework. As shown in fig. 1, although the vehicle type a and the vehicle type B are different vehicle types, the vehicle type a and the vehicle type B have the same wheel axle pitch because they are based on the same platform, and in fig. 1, reference numeral 4 denotes the wheel axle pitch. Reference numeral 1 denotes a finished vehicle fairing data profile of a vehicle type a based on the same platform, and reference numeral 2 denotes a finished vehicle fairing data profile of a different vehicle type B based on the same platform. And (4) superposing fairing data of different vehicle types. For different vehicle types A and B, the fairing data of the outer contour are different, so that the fairing data of different vehicle types shown in 1 and 2 in the figure are not completely overlapped, and for the non-overlapped part of the fairing data, the fairing data of the inner side is selected. And on the basis of the superposed fairing data, taking the disassembled parts at the same parts of all the vehicle types as units to determine the size of the outer model framework of the whole vehicle. In the embodiment shown in fig. 1, the method is used for determining the size of a main framework in the X direction and the Y direction in the whole vehicle external model framework. In the embodiment shown in fig. 1, the disassembling at the same position in the X and Y directions comprises: front bumper, front fender, side wall and door, rear fender, rear bumper. As shown in fig. 1, in the front bumper region, the position of the front bumper mounting reference surface of the main frame is obtained by subtracting the front bumper fairing data from the fairing data located on the inner side out of the fairing data 1 and the fairing data 2 to the minimum safe distance 5 of the main frame. In one embodiment, the front bumper fairing data is 400mm from the backbone minimum safe distance 5. In the front fender area, the position of the front fender installation reference surface of the main framework is obtained by subtracting the minimum safe distance 6 from the front fender fairing data to the main framework from the fairing data positioned at the inner side in the fairing data 1 and the fairing data 2. In one embodiment, the front fender fairing data to backbone minimum safe distance 6 is 400mm. In the side wall and door area, subtracting the minimum safe distance 7 from the side wall and door fairing data to the main framework from the fairing data positioned at the inner side in the fairing data 1 and the fairing data 2 to obtain the positions of the side wall and door installation reference surfaces of the main framework. In one embodiment, the minimum safe distance 7 from the side wall and door smooth data to the main frame is 250mm. And in the rear fender area, subtracting the minimum safe distance 8 from the rear fender fairing data to the main framework from the fairing data positioned at the inner side in the fairing data 1 and the fairing data 2 to obtain the position of the rear fender installation reference surface of the main framework. In one embodiment, the rear fender fairing data to backbone minimum safe distance 8 is 300mm. In the rear bumper area, the position of the rear bumper installation datum plane of the main frame is obtained by subtracting the minimum safe distance 9 from the fairing data of the rear bumper to the main frame from the fairing data on the inner side in the fairing data 1 and the fairing data 2. In one embodiment, the rear bumper fairing data to backbone minimum safe distance 9 is 400mm. After the mounting reference surfaces of the front bumper, the front fender, the side walls, the door, the rear fender and the rear bumper of the main framework are determined, the dimensions of the main framework in the X and Y directions are determined, as shown by the solid outline in FIG. 1.
Fig. 2 discloses a schematic diagram for determining the dimension of the main frame in the Z direction in the entire vehicle outer model frame according to an embodiment of the invention. The respective reference numerals in fig. 2 are as follows. 1: vehicle type a's whole vehicle fairing data profile based on the same platform, 2: vehicle fairing data profile of different vehicle types B based on the same platform, 3: main skeleton cross section profile of the whole vehicle external model, 10: minimum safe distance from engine cover fairing data to main framework, 11: visual interior space minimum safe distance: 12: the trunk cover is divided into a framework installation space. In fig. 2, reference numeral 1 also denotes a finished vehicle fairing data profile of a vehicle type a based on the same platform, and reference numeral 2 also denotes a finished vehicle fairing data profile of a different vehicle type B based on the same platform. And (4) superposing fairing data of different vehicle types. In the embodiment shown in fig. 2, the detachment at the same location in the Z direction comprises: bonnet, visual interior trim space, trunk lid. As shown in fig. 2, in the bonnet area, the bonnet mounting reference plane position of the main frame is obtained by subtracting the minimum safe distance 10 from the bonnet fairing data to the main frame from the fairing data located inside of the fairing data 1 and the fairing data 2. In one embodiment, the bonnet fairing minimum safe distance 10 to the backbone is 150mm. In the visual interior space region, subtracting the visual interior space minimum safety distance 11 from the fairing data positioned on the inner side of the roof in the fairing data 1 and the fairing data 2 to obtain the position of the installation reference surface of the interior bottom sealing plate of the main framework. The temperature setting reference of the visual interior space is an installation reference surface of an interior bottom sealing plate. In one embodiment, the minimum safe distance for visualization of the interior space is 550mm. In the trunk lid region, trunk lid sub-frame mounting space 12 is subtracted from the fairing data located on the inner side in fairing data 1 and fairing data 2 to obtain the trunk lid sub-frame mounting reference surface position of the main frame. The installation space 12 of the sub-frame of the trunk lid is the size of the sub-frame of the trunk lid. Fig. 3 discloses a schematic mounting diagram of a trunk lid sub-frame in a whole vehicle outer model frame according to an embodiment of the invention. Fig. 3 shows the trunk lid sub-frame 13. In one embodiment, the dimensions of the trunk lid sub-frame 13, i.e., the trunk lid sub-frame installation space 12, are 300mm in the X direction and 300mm in the Z direction.
After the size of the whole vehicle outer model framework, mainly the size of the main framework, is determined, a reference point is determined on the whole vehicle outer model framework, and the reference point is used for installing an outer decoration dismounting piece. In one embodiment, the datum points are distributed on the main framework, and the datum points comprise fixed datum points, positioning datum points and linear bearing guide sleeve mounting points.
Fig. 4 discloses a schematic distribution diagram of reference points of a front bumper on a whole vehicle outer model framework according to an embodiment of the invention. The respective reference numerals in fig. 4 are as follows. 14: front bumper fairing data profile based on vehicle type a of the same platform, 15: front bumper fairing data profile based on vehicle type B of the same platform, 16: the fixed datum point of the upper front bumper dismounting part of the main framework, 17: front bumper dismounting positioning datum point on main framework, 18: and mounting points of the front bumper dismounting linear bearing guide sleeve on the main framework. The front bumper fairing data profile 14 for model a based on the same platform and the front bumper fairing data profile 15 for model B based on the same platform are superimposed. The overlapping parts of the front bumper fairing data profiles of different vehicle types are determined, and the overlapping parts form a line segment set. The front bumper dismounting fixing reference points 16 on the main framework are distributed in the line segment set and are distributed in multiples of 100mm according to the machining reference of the front bumper dismounting. The front bumper dismounting positioning datum points 17 on the main framework are also distributed in the line segment set and are distributed in multiples of 100mm according to the machining datum of the front bumper dismounting. In the illustrated embodiment, the front bumper removal requires the distribution of two positioning references 17. The front bumper stripper linear bearing guide mount points 18 on the backbone are also distributed within this line segment set. In the illustrated embodiment, the front bumper removal requires two guide sleeve mounting points 18.
Fig. 5 is a schematic diagram illustrating a distribution of datum points of a fender on a whole outer model skeleton according to an embodiment of the invention. The respective reference numerals in fig. 5 are as follows. 19: front fender fairing data profile based on same platform of vehicle type a, 20: front fender fairing data profile based on same platform of vehicle type B, 21: front fender stripping fixing datum point on main framework, 22: front fender stripping and positioning datum point on main framework, 23: and mounting points of the front fender disassembling linear bearing guide sleeves on the main framework. The front fender fairing data profile 19 of model a based on the same platform and the front fender fairing data profile 20 of model B based on the same platform are superimposed. And determining the mutually overlapped parts in the front fender fairing data profiles of different vehicle types, wherein the mutually overlapped parts form a line segment set. The front fender disassembling and fixing datum points 21 on the main framework are distributed in the line segment set and are distributed in multiples of 100mm according to the machining datum of the front fender disassembling. The front fender disassembling and positioning datum points 22 on the main framework are distributed in the line segment set and are distributed in multiples of 100mm according to the machining datum of the front fender disassembling. In the illustrated embodiment, the front fender removal requires the distribution of two alignment reference points 22. The mounting points 23 of the front fender dismounting linear bearing guide sleeves on the main framework are distributed in the line segment set. In the illustrated embodiment, the front fender disassembly requires two guide sleeve mounting points 23.
Fig. 6 discloses a distribution diagram of datum points of the engine cover on the whole outer model framework of the vehicle according to an embodiment of the invention. The respective reference numerals in fig. 6 are as follows. 24: bonnet fairing data profile based on vehicle type a of the same platform, 25: bonnet fairing data profile for model B based on the same platform, 26: bonnet removal fixing datum point on the main frame, 27: datum point for positioning engine cover dismounting on main frame, 28: and installing points of the linear bearing guide sleeve of the engine cover disassembling piece on the main framework. The hood fairing data profile 24 for model a based on the same platform and the hood fairing data profile 25 for model B based on the same platform are superimposed. Mutually overlapping portions in the contour of the engine cover fairing data of different vehicle types are determined, and the mutually overlapping portions form a line segment set. The bonnet dismounting part fixing reference points 26 on the main frame are distributed in the line segment set and are distributed in a 100mm multiple mode according to the machining reference of the bonnet dismounting part. The bonnet dismounting positioning datum points 27 on the main framework are distributed in the line segment set and are distributed in multiples of 100mm according to the machining datum of the bonnet dismounting. In one embodiment, bonnet removal requires the distribution of two alignment datum points 27. The engine cover dismounting piece linear bearing guide sleeve mounting points 28 on the main frame are distributed in the line segment set. In one embodiment, bonnet removal requires the distribution of two guide sleeve mounting points 28.
Fig. 7 shows a distribution diagram of the reference points of the side walls and the doors of the whole vehicle outer model framework according to an embodiment of the invention. The respective reference numerals in fig. 7 are as follows. 29: side wall fairing data profile of vehicle type A based on the same platform, 30: side wall fairing data profile of vehicle type B based on the same platform, 31: side wall and the fixed datum point of door little assembly on the main frame, 32: side wall and the little assembly location datum point of door on the main frame, 33: side wall removal piece linear bearing guide sleeve mounting point, 34 on main frame: front door dismounting linear bearing guide sleeve mounting point on the main framework, 35: and mounting points of the rear door dismounting linear bearing guide sleeves on the main framework. The side wall fairing data profile 29 of model a based on the same platform and the side wall fairing data profile 30 of model B based on the same platform are superimposed. And determining mutually overlapped parts in the side body fairing data outlines of different vehicle types, wherein the mutually overlapped parts form a line segment set. The side wall detaching part fixing reference points 31 on the main framework are distributed in the line segment set and are distributed in multiples of 100mm according to the machining reference of the side wall detaching part. The positioning datum points 32 of the side surrounding and detaching pieces on the main framework are distributed in the line segment set and are distributed in multiples of 100mm according to the machining datum of the side surrounding and detaching pieces. In one embodiment, the side gusset requires four locating fiducials 32. The mounting points 33 of the linear bearing guide sleeves of the side-surrounding detached part on the main framework are distributed in the line segment set, and in one example, two mounting points 33 of the guide sleeves are required to be distributed on the side-surrounding detached part. The front and rear door dismantling pieces are fixed on the side wall dismantling pieces, and the guide mechanisms of the front and rear door dismantling pieces are distributed on the main framework. In one example, the front door disassembly linear bearing guide sleeve mounting points 34 on the main framework are distributed in the line segment set, and the front door disassembly needs to be distributed with two guide sleeve mounting points 34. In one embodiment, the rear door removing linear bearing guide mounting points 35 on the main frame are distributed in the line segment set, and two guide mounting points 35 are required for the rear door removing.
Fig. 8 is a schematic diagram illustrating a distribution of reference points of a rear bumper on the entire outer model skeleton according to an embodiment of the invention. Respective reference numerals in fig. 8 are as follows. 36: rear bumper fairing data profile based on vehicle type a of the same platform, 37: rear bumper fairing data profile based on vehicle type B of the same platform, 38: the main frame is provided with a rear bumper dismounting positioning datum point, 39: rear bumper dismounting positioning datum point on main framework, 40: and mounting points of the linear bearing guide sleeves for disassembling the rear bumper on the main framework. The rear bumper fairing data profile 36 for model a based on the same platform and the rear bumper fairing data profile 37 for model B based on the same platform are superimposed. And determining the mutually overlapped parts in the front fender fairing data profiles of different vehicle types, wherein the mutually overlapped parts form a line segment set. The rear bumper dismounting fixing reference points 38 on the main framework are distributed in the line segment set and are distributed in multiples of 100mm according to the machining reference of the rear bumper dismounting. The rear bumper stripper locator reference points 39 on the backbone are distributed within this set of segments and are distributed in multiples of 100mm according to the machining criteria of the rear bumper stripper. In one embodiment, the rear bumper removal requires the distribution of two location reference points 39. The mounting points 40 of the linear bearing guide sleeves of the rear bumper stripper on the main frame are distributed in the line segment set. In one embodiment, the rear bumper removal requires two guide sleeve mounting points 40.
Fig. 9 discloses a schematic view of a main frame machining reference, an interior trim installation operation space and a shaft mechanism installation surface in a whole vehicle outer model frame according to an embodiment of the invention. The respective reference numerals in fig. 9 are as follows. 41: machining positioning reference and fixing holes in the main framework, and 42: installation of interior work space, 43: and a three-phase adjusting shaft mechanism mounting platform on the main framework. As shown in fig. 9, the main frame machining positioning datum and fixing holes 41 are distributed at the bottom of a three-phase adjusting shaft mechanism mounting platform 43 on the main frame, the bottom plane of each shaft mechanism mounting platform is consistent in the vehicle body coordinate Z direction, and a positioning pin hole and four pressing plate fixing holes are distributed. In one embodiment, an interior decoration installation space 42 is distributed in the main framework, and an operator can install and match the interior decoration in the visible portion of the model entering through the interior decoration installation space.
Fig. 10 is a schematic view of the installation of the measurement reference of the whole vehicle on the main frame of the external model frame of the whole vehicle according to an embodiment of the invention. Respective reference numerals in fig. 10 are as follows. 44: front windshield department whole vehicle model measurement benchmark, 45: front bumper department whole car model measurement benchmark, 46: measuring reference of a whole vehicle model at a rear windshield, 47: and measuring the reference of the whole vehicle model at the rear bumper. As shown in fig. 10, to establish the riding model measuring datum, in one embodiment, the main frame is required to distribute a whole vehicle model measuring datum 44 installation plane at the front windshield, a whole vehicle model measuring datum 45 installation plane at the front bumper, a whole vehicle model measuring datum 46 installation plane at the rear windshield, and a whole vehicle model measuring datum 47 installation plane at the rear bumper. The whole vehicle model measuring datum needs to meet an effective measuring datum which is led out from a main framework measuring main RPS datum and is not covered by an external decoration part after the external decoration part is assembled on the main framework.
Fig. 11 is a schematic view of a lift mechanism for mounting a hood part to a main frame of an outer model frame of a vehicle according to an embodiment of the present invention. The reference numerals in fig. 11 are as follows. 48: the jacking mechanism is used for assembling engine cover parts. In one embodiment, as shown in fig. 11, the main framework mounts a lifter 48 for mounting bonnet parts below the bonnet removal. The engine cover dismounting of the whole vehicle model is the dismounting mounted at last, and under the condition that the dismounting is matched with the peripheral seams, a jacking mechanism is mounted below the main framework of the embodiment in order to facilitate mounting of the parts.
In the whole vehicle external model framework, the overall dimension of the model framework is determined by superposing different vehicle types at the same level through a reduction method, taking the disassembly of the same part of fairing data as a unit, and subtracting the minimum safe distance of the part from the innermost fairing data of the part to obtain the overall dimension of the main framework with the minimum common divisor. And for the trunk lid data disassembling parts of different vehicle types in the same level, the size difference is larger, and a space for installing the sub-frameworks of the trunk lid can be reserved on the main framework. The trunk lid sub-frame can be additionally manufactured according to the sizes of trunk lids of different vehicle types.
And fixed datum points, positioning datum points and linear bearing guide sleeve mounting points are distributed on the model framework. The method is characterized in that parts are disassembled at the same parts of fairing data as a unit, reference points distributed on a framework are distributed in a common area where the parts are disassembled at the same parts of the fairing data of different vehicle types at the same level through a reduction method, and the distance between a fixed point and a positioning point is matched with the machining reference of a part according to the distribution of a part machining platform.
The model framework plans an operation space for installing the interior trim, and an assembler can enter the interior trim of the model from the bottom of the finished automobile model through the operation space. And a whole vehicle model measuring reference mounting plane is distributed in the lower area of the model framework in the disassembling piece of the front and rear wind window parts and the disassembling piece of the front and rear protecting parts. And the model framework is provided with jacking mechanisms which are used for dismounting and mounting the engine cover dismounting part below the engine cover fairing data dismounting part. The model skeleton is provided with a three-phase adjusting shaft mechanism fixing plane and a fixing hole at the wheel axle. The model skeleton is distributed with machining benchmark and clamping fixing holes at the bottom of the shaft mechanism mounting platform during machining.
The reinforcing ribs are distributed on the model framework to improve the overall rigidity of the framework, and the distribution of the reinforcing ribs avoids fixing reference points so as to fix the exterior decoration dismantling piece with an assembler. The non-functional area on the framework can be hollowed out for weight reduction treatment.
The whole vehicle external model framework is an integral framework, and is integrally machined by a numerical control five-axis machine tool, so that the manufacturing precision of a reference surface and a positioning hole is controlled within +/-0.05 mm. The skeleton has universality, can be planned and manufactured before the visual whole vehicle external model project is started, can be repeatedly utilized aiming at the visual whole vehicle data inspection model of the same-level vehicle type, greatly reduces the manufacturing cost while meeting the requirements on rigidity, dimensional stability and precision, and shortens the project period.
The embodiments described above are provided to enable persons skilled in the art to make or use the invention and that modifications or variations can be made to the embodiments described above by persons skilled in the art without departing from the inventive concept of the present invention, so that the scope of protection of the present invention is not limited by the embodiments described above but should be accorded the widest scope consistent with the innovative features set forth in the claims.
Claims (12)
1. A whole vehicle outer model skeleton, comprising:
the sub-framework is arranged on the main framework;
the datum points are distributed on the main framework and used for installing an exterior decoration detaching piece;
wherein the size of the main skeleton is determined according to the fairing data of different vehicle types based on the same platform;
the method comprises the following steps that fairing data of different vehicle types based on the same platform are overlapped, and the size of a whole vehicle outer model framework is determined by taking a disassembled part at the same part of each vehicle type as a unit based on the overlapped fairing data;
the method comprises the steps of selecting inner-side fairing data based on overlaid fairing data, taking disassembly of the same parts of all vehicle types as a unit, and determining the size of a main framework according to the minimum safe distance from the fairing data of each disassembly to the main framework.
2. The vehicle exterior model skeleton of claim 1, wherein the vehicle exterior model skeleton is used for manufacturing different vehicle types based on the same platform.
3. The full car outer model skeleton of claim 1, wherein the reference points comprise fixed reference points, locating reference points, and linear bearing guide sleeve mounting points.
4. The vehicle exterior model skeleton of claim 3, wherein mutually overlapping portions of the fairing data contours of disassembled parts of the same part of different vehicle types are determined, the mutually overlapping portions form a line segment set, and the reference points comprise a fixed reference point, a positioning reference point and a linear bearing guide sleeve mounting point which are distributed in the line segment set.
5. The exterior model shell of claim 1, wherein said sub-shell comprises a trunk lid sub-shell.
6. The vehicle exterior model skeleton of claim 1, wherein the fairing data is fairing data of an outer contour of the vehicle model.
7. The manufacturing method of the whole vehicle outer model framework is characterized by being used for manufacturing the whole vehicle outer model frameworks of different vehicle types based on the same platform, and comprises the following steps:
acquiring fairing data of different vehicle types based on the same platform, and superposing the fairing data of different vehicle types;
determining the size of the outer model framework of the whole vehicle by taking the disassembled parts at the same parts of each vehicle type as units based on the superposed fairing data;
determining a datum point on the outer model framework of the whole vehicle by taking the disassembled parts at the same parts of each vehicle type as units, wherein the datum point is used for installing the disassembled parts of the outer decorations;
the method comprises the steps of selecting the fairing data on the inner side based on the overlaid fairing data, taking the disassembly of the same part of each vehicle type as a unit, and determining the size of a main framework according to the minimum safety distance from the fairing data of each disassembly to the main framework.
8. The manufacturing method of the entire vehicle outer model frame as claimed in claim 7, wherein the entire vehicle outer model frame includes a main frame and a sub frame.
9. The method of manufacturing an exterior model skeleton for a vehicle as set forth in claim 8, wherein the sub-skeleton includes a trunk lid sub-skeleton.
10. The method for manufacturing the whole vehicle outer model skeleton according to claim 8, wherein the fairing data is fairing data of an outer contour of the vehicle type.
11. The method of manufacturing a full car outer model frame as recited in claim 8, wherein the reference points are distributed on the main frame, and the reference points include fixed reference points, positioning reference points and linear bearing guide mounting points.
12. The method for manufacturing the external model skeleton of the whole automobile according to claim 11, wherein the overlapped parts of the fairing data outlines of the disassembled parts at the same parts of different automobile types are determined, the overlapped parts form a line segment set, and the reference points comprise a fixed reference point, a positioning reference point and a linear bearing guide sleeve mounting point which are distributed in the line segment set.
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