CN102380521A - Size verification method of modified vehicle on basis of platform vehicle type with large size deviation - Google Patents
Size verification method of modified vehicle on basis of platform vehicle type with large size deviation Download PDFInfo
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- CN102380521A CN102380521A CN2010102688855A CN201010268885A CN102380521A CN 102380521 A CN102380521 A CN 102380521A CN 2010102688855 A CN2010102688855 A CN 2010102688855A CN 201010268885 A CN201010268885 A CN 201010268885A CN 102380521 A CN102380521 A CN 102380521A
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Abstract
The invention discloses a size verification method of a modified vehicle on the basis of a platform vehicle type with large size deviation, which is mainly used for guiding the design of the modified vehicle so as to ensure the correct size for installation and matching of the modified vehicle on the basis of the platform vehicle type with large size deviation. The main design concept comprises the following steps of: counting out the size deviation rule of key installation points, installation surfaces and profile matching surfaces of a plurality of sampled vehicles, modifying a three-dimensional digital mold of original vehicles according to the size deviation rule of the original vehicles, then carrying out design of the modified vehicle, verifying the matching degree of the key size and the peripheral profile size in assembling by a fast molding piece according to the data of the modified vehicle, and ensuring the correctness of the state of a mold opening piece and the correctness of the matching of all parts in assembling.
Description
Technical field
The present invention is a kind of size verification method that changes the money car based on the big platform vehicle of dimensional discrepancy, can effectively improve the big platform vehicle of dimensional discrepancy and change the design of money car and the deviation that exists between coupling is installed.
Background technology
One. the reason that platform truck molded dimension deviation is big:
For some the old platform vehicle than the long production time limit historical (6-10 and more than) has been arranged, inconsistent situation may appear in on-the-spot accessory size and three-dimensional data size, and each controlling dimension appearance causes the reason of this phenomenon to mainly contain than large deviation:
1. design alteration flow process system is unsound.Part proposes change for some reason under the situation of die sinking, establish after design engineer's three-dimensional data is revised to become mould and fail to upgrade in time and put in place;
2. mould supplier feedback system is unsound.After the stamping parts mould later stage repeatedly debugs through the production scene, generally also be difficult to reach the three-dimensional data of revising with the supplier and mate fully, and the information that the supplier feeds back to main engine plants relatively lags behind a lot.
3. the consume of mould and field adjustable influences each other.Because mould in use can constantly wear and tear, be not identical so the production batch time is separated by inevitable than long part, and the assembling process in workshop also is can to adjust accordingly to the part of different batches, for example profile etc. is located in adjustment.
In sum; Some productive lifes actual accessory size of platform moulding more of a specified duration certain deviation can occur with the three-dimensional digital-to-analogue of design; In addition because mould and anchor clamps also can be made corresponding adjustment for the part that cooperates different production batch or the part of establishing change; Cause for above-mentioned reasons can't mating fully and design three-dimensional digital-to-analogue with actual field entrucking state, thus productive life platform vehicle more of a specified duration often its each controlling dimension deviation to bigger.
Two. the performance aspect that dimensional discrepancy is big:
1. the vehicle mounting points aperture play of different batches.For example the change of front and rear covers hinge installing hole shape-location tolerance tends to cause can't mate with gusset and beater or beat-up after the front and rear covers assembling, and front and back headlight and front and back security personnel dress coupling is difficult when causing general assembly indirectly.(generally bigger to dimensional discrepancy) at Y
2. the deviation of appearance profile size.The deviation of its exterior contour size of vehicle body appearance component (like front and rear covers) can cause and gusset, beater or beat-up etc. between fit clearance and face difference change.If deviation is bigger, then possibly ask that crack and face are poor through what adjustment guaranteed to install front and rear covers and gusset and beater or beat-up in when assembling.
3. there is deviation in symmetrical part.Because symmetrical part not exclusively is in same secondary mould, to produce, therefore the deviation of different mould wear rates causes symmetrical part asymmetric, or deviation is bigger, because symmetrical part reference for installation also often is inconsistent, causes with other parts and can't mate simultaneously.
Three. change money back frame scape:
Because productive life its appearance and modeling of vehicle more of a specified duration can not meet the aesthetic conceptions that people grow with each passing hour; Therefore a lot of old vehicles constantly release change the money car based on old automobile development platform; And it is main through revising automobile appearance; Keep that internal structure is constant to realize that its automobile metal plate work that relates to change mainly contains front and rear covers and beater or beat-up.Outward appearance through these parts changes money to change the modelling feature of vehicle, like a minute suture, and front and rear covers height and characteristic curve, car light and front and back conformal shape and characteristic face etc.
The peripheral part that general front and rear covers and beater or beat-up are installed coupling all is to continue to use part; And front and rear covers and beater or beat-up all design on original three-dimensional digital-to-analogue basis; Each controlling dimension can't be consistent with on-the-spot size fully, cause these parts newly developed at the scene during entrucking can't with continue to use part and mate fully.
On automobile, also have some body accessorieses in addition, like front and rear covers door lock, air spring; Hinges etc., its member generally are divided into two parts, and an end is installed on the front and rear covers; The other end is installed on the vehicle body, plays to connect front and rear covers and vehicle body, and realizes that front and rear covers opens and closes function.Like front and rear covers door lock (lock body is installed on the front and rear covers, and snap close is installed on the vehicle body), (end is installed on the front and rear covers air spring; One end is sent out and is contained on the vehicle body); Hinges (hinge one end needs before and after being installed in, and an end is installed on the vehicle body) etc. are if the mounting points of vehicle body end and installation dimension deviation are bigger; Then can cause these body accessorieses can't be well and front and rear covers inner panel coupling, be complementary with the other end that is installed in the annex on the vehicle body even also be difficult to after perhaps being installed on the front and rear covers inner panel.
If therefore as the bigger part of these self overall sizes of front and rear covers; Because its die cost is higher relatively; If on original three-dimensional data, design change money car front and rear covers can't with the good coupling or at all can't mate of vehicle body; These moulds need to revise or scrap fully possibly so, have influenced development cost and cycle greatly.
Four. traditional development method and the inventive method contrast:
Owing to generally change the design procedure of money car be: sample car analysis in early stage-three-dimensional data design-Kai total order mold members-formal entrucking and suitably fine setting; This development procedure is applicable to the platform vehicle that each controlling dimension deviation is less; And more of a specified duration for some productive lifes, the platform vehicle that the controlling dimension deviation is bigger is because the uniformity of its three-dimensional data and actual field part is relatively poor; Certain problem can appear in installation and matching part, possibly need constantly adjustment mould and repeated validation in the later stage entrucking process
If this car based on this old platform vehicle adopts the traditional development method; After the total order mold members is produced, must need after the problem of appearance installation and coupling during entrucking to revise three-dimensional data, will cause repeatedly revising the requirement of mould like this with satisfied installation coupling; Also might scrap a whole set of mould; Therefore need bear the risk that repairs a die and give up and touch, increase development cost, cycle, risk greatly, possibly cause project to be stagnated when serious because of the mould problem.
Institute of the present invention employing method then can be evaded the problems referred to above, the steps include: sample car analysis in early stage-three-dimensional data correction and design-rapid shaping spare processing and entrucking checking-data fine setting-total order mold members-formal entrucking and suitably fine setting.Though in the traditional development method, increased several steps; But before formal die sinking, verify through rapid shaping spare earlier; Expense and cycle are shorter; And rapid shaping spare material be prone to be revised, and makes when matching and debugging is installed and can revise rapid shaping spare reaching the requirement of installation match through the scene with rapid shaping spare again, and amendment record is fed back to three-dimensional data carry out last correction.The step of these increases can reduce because of there not being checking directly to open the risk of total order mold members greatly, has also reduced the later stage mould simultaneously and has revised the cycle of debugging with entrucking repeatedly.
Summary of the invention
The objective of the invention is to overcome the big platform vehicle of dimensional discrepancy hinge changes the money car difficulty that checking brings to the design and installation coupling and a kind of size verification method that changes the money car based on the big platform vehicle of dimensional discrepancy is provided.
The objective of the invention is to reach through following measure:
A kind of size verification method that changes the money car based on the big platform vehicle of dimensional discrepancy; This method needs to count to this platform vehicle earlier the key mounting holes size of many sample cars of sampling; The deviation rule of the size of installed surface and outline face according to after the three-dimensional digital-to-analogue of the former car of its dimensional discrepancy rule correction, changes the design of money car then; And will change the money car data and verify the installation and the matching relationship of itself and peripheral part, and revise changing money car three-dimensional data through rapid shaping spare.
Said rapid shaping spare is used for verifying the apparent size coupling of sheet metal component.
The sheet metal component of said rapid shaping spare checking is a total member, the corresponding assembly of an exemplar of being processed, and, under the prerequisite that does not influence verification the verifying results, carry out suitable adjustment according to the version of assembly.
Beneficial effect of the present invention:
Owing to change the money car based on the big old platform vehicle of dimensional discrepancy; Method for designing possibly need constantly adjustment mould and repeated validation as the one of which in later stage entrucking process; Not only can emit the risk of repeatedly revising mould; Also might scrap a whole set of mould, even the project possibility of not going down, development cost, cycle, risk increased greatly.Therefore change the money car when the entrucking and the uniformity of three-dimensional data for what guarantee platform vehicle that this dimensional discrepancy is big; Need a kind of new exploitation checking thinking; The method that the present invention used avoided the big platform vehicle of dimensional discrepancy change the money car general design and develop with the entrucking process in the problems referred to above of occurring; Guarantee the uniformity of design and real vehicle state, practiced thrift development cost, shortened the construction cycle.
The specific embodiment
Developing thought: find out the former car key mounting holes size of sampling; The deviation rule of the size of installed surface and outline face; After the three-dimensional digital-to-analogue of the former car of its dimensional discrepancy rule correction; Change money car design, and will change the money car data and verify itself and the installation and the matching relationship of peripheral part, with the correctness that guarantees that actual die sinking event data entrucking is mated through rapid shaping spare.
Idiographic flow:
1. drift correction in the same way: the sample car that extracts different production batch; To crucial mounting points, installed surface, outline border size is got scanning element cloud and three-dimensional coordinates measurement ready; Through the some cloud that scans is carried out finishing analysis; Find out and note the dimensional discrepancy rule of this platform vehicle, whether as the deviation of the critical size (installing hole, locating hole) of all sample cars all has uniformity in the same way.If there is the conforming in the same way rule of this deviation, then at first need carries out the first round to three-dimensional data and revise according to the surveying record value.
2. selected reference car: the result that will scan with three-dimensional coordinates measurement compares with the three-dimensional digital-to-analogue of former car, after first round correction, extracts certain less sample car of deviation wherein as control vehicle according to statistics.If all deviations are bigger, all can not mate preferably with three-dimensional digital-to-analogue, then need carry out reversely to selected control vehicle, with reverse data former car three-dimensional data is carried out the first round and revise.
3. three-dimensional data design: former car data is made amendment adjustment installing hole size, installed surface and outline, the hard spot during as design according to control vehicle size or correction size.The A face that provides according to moulding then carries out Section Design, and structural design guarantees that in design process hard spot is constant.
4. rapid shaping spare processing: the three-dimensional data according to design is integrated into a part with front and rear covers inner and outer plates (or beater or beat-up) digital-to-analogue, input to machining center and make rapid shaping spare, and work in-process guarantees the precision of critical size and important overall size.
5. rapid shaping spare is installed the coupling checking: the rapid shaping spare that processes is installed on the vehicle body of benchmark sample car; Find out the problem that occurs in the matching process of installing; Note the deviate of installing hole and installed surface; Note the same gusset of front and rear covers, all ring gaps and the face of other peripheral parts such as beater or beat-up are poor.Analyze these measured values, find out the aperture that needs adjustment, installed surface etc.; Quick exemplar is made amendment to adjust to the matching status of front and rear covers and vehicle body; And write down concrete adjusted value, then three-dimensional data is carried out second and take turns correction, till the entrucking checking is passed through.
6. three-dimensional data is freezed, and assigns formal die sinking instruction.
Claims (3)
1. size verification method that changes the money car based on the big platform vehicle of dimensional discrepancy; It is characterized in that: these method needs count the key mounting holes size of many sample cars of sampling earlier to this platform vehicle; The deviation rule of the size of installed surface and outline face; Then according to after the three-dimensional digital-to-analogue of the former car of its dimensional discrepancy rule correction; Change money car design, and will change the money car data and verify the installation and the matching relationship of itself and peripheral part, and revise changing money car three-dimensional data through rapid shaping spare.
2. a kind of size verification method that changes the money car based on the big platform vehicle of dimensional discrepancy according to claim 1 is characterized in that: said rapid shaping spare is used for verifying the apparent size coupling of sheet metal component.
3. a kind of size verification method that changes the money car according to claim 1 based on the big platform vehicle of dimensional discrepancy; It is characterized in that: the sheet metal component of said rapid shaping spare checking is a total member; The corresponding assembly of an exemplar of being processed; And, under the prerequisite that does not influence verification the verifying results, carry out suitable adjustment according to the version of assembly.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102688855A CN102380521A (en) | 2010-08-30 | 2010-08-30 | Size verification method of modified vehicle on basis of platform vehicle type with large size deviation |
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| CN2010102688855A CN102380521A (en) | 2010-08-30 | 2010-08-30 | Size verification method of modified vehicle on basis of platform vehicle type with large size deviation |
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| CN102380521A true CN102380521A (en) | 2012-03-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376179A (en) * | 2014-11-24 | 2015-02-25 | 大连理工大学 | Fast vehicle modeling rendering based on database |
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| CN101614513A (en) * | 2009-06-29 | 2009-12-30 | 无锡吉兴汽车声学部件科技有限公司 | Revise the method for inspection tool of automobile roof lining |
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2010
- 2010-08-30 CN CN2010102688855A patent/CN102380521A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1375770A (en) * | 2002-04-23 | 2002-10-23 | 上海交通大学 | Digital white car body sample making method |
| WO2004053740A2 (en) * | 2002-12-02 | 2004-06-24 | Esi Group | Method for simulating a die-stamping process |
| CN1750009A (en) * | 2005-10-09 | 2006-03-22 | 万向钱潮股份有限公司 | Method for realizing computer auxiliary sedan chassis total layout |
| CN101614513A (en) * | 2009-06-29 | 2009-12-30 | 无锡吉兴汽车声学部件科技有限公司 | Revise the method for inspection tool of automobile roof lining |
Non-Patent Citations (1)
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| CN104376179A (en) * | 2014-11-24 | 2015-02-25 | 大连理工大学 | Fast vehicle modeling rendering based on database |
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Application publication date: 20120321 |