CN104985395B - Automobile integral type skinning method and its mould structure - Google Patents
Automobile integral type skinning method and its mould structure Download PDFInfo
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- CN104985395B CN104985395B CN201510367719.3A CN201510367719A CN104985395B CN 104985395 B CN104985395 B CN 104985395B CN 201510367719 A CN201510367719 A CN 201510367719A CN 104985395 B CN104985395 B CN 104985395B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
Abstract
Automobile integral type skinning method and its mould structure, the invention discloses a kind of automobile integral type skinning method；Including carrying out the steps successively：Roll-forming；Excision forming；It is compressing.
Description
Technical field
The present invention relates to a kind of process of automobile skin, the process of especially a kind of automobile integral type covering and
Its mould structure.
Background technology
The side skin of automobile two is the indispensable pith of automobile external, in order to attractive in appearance and firm, and designer is often
While basic function shape is met, the curve form with muscle line is also designed into, this just becomes its overall profile
It is more complicated, to such metal sheet, in traditional sheet metal manufacturing, often take particular manufacturing craft to pass through hydraulic test one
The method of secondary shaping carries out shaped by fluid pressure.
But hydraulic test conventional at present is only capable of suppressing the template that length is less than 2 meters, and for bus, minibus etc.
Full-sized car, two side skin length are often 6~8 meters, then must be divided into 3~4 sections, every section of difference shaped by fluid pressure, so
Afterwards body of a motor car manufacture scene splice successively, be welded integral vehicle body.
For with existing this production technology, it has larger defect：
(1) covering is segmented, each section of manufacture will open large mold, and cost is high, and does not have versatility, especially
When vehicle is regenerated, even a little changing for very little, new die will be developed again, manufacturing cost is very high, and the cycle is also longer.
(2) covering is segmented, must successively splice at vehicle body soldering scene and be welded and could be molded, technological process is more complicated,
This not only takes a lot of work, takes material, time-consuming, and operation difficulty is larger, does not note slightly occurring as soon as bad phenomenon, severe patient covers whole side
Skin is scrapped, and suffers heavy losses.
The content of the invention
The problem to be solved in the present invention is：A kind of simple automobile integral type covering processing method and its mould knot are provided
Structure.
To solve problem described above, the present invention proposes a kind of automobile integral type skinning method；Including the steps：
Roll-forming；Excision forming；Shaped by fluid pressure.
It is used as the improvement to automobile integral type skinning method of the present invention：In the roll-forming step：First, root
According to the shape in automobile section, the relevant parameter of roll-in is set；Secondly, coiled strip is smoothed successively by roll squeezer, is classified, is molded
Afterwards, further according to side skin length severing.
It is used as the further improvement to automobile integral type skinning method of the present invention：In the excision forming step：
First, according to the species of automobile, model, corresponding forward and backward wheel cover is set, middle hot-water heating hole, luggage compartment turns to lamp hole, refueled
Hole site, then puts surplus well further according to its location parameter；Secondly position of positioning hole, is carried out according to automobile integral type covering die
It is determined that；Then, with cutting machine successively by forward and backward wheel cover, middle hot-water heating hole, luggage compartment turns to lamp hole, and tank filler sleeve has once been cut
Into；Finally, positioning hole is cut and completed.
It is used as the further improvement to automobile integral type skinning method of the present invention：Set respectively in the both sides of covering
At least two positioning holes.
It is used as the further improvement to automobile integral type skinning method of the present invention：The shaped by fluid pressure step is such as
Under：Before automobile integral type covering die is coordinated by the positioning hole on keeper and covering to be positioned, and difference is carried out successively
Wheel cover, rear wheel cover, front deck hole, preceding windowsill, rear deck hole, steering lamp hole, the hydraulic pressure shaped by fluid pressure in middle cabin hole.
It is used as the further improvement to automobile integral type skinning method of the present invention：The front wheel housing, rear wheel cover mould
Tool is installed on the post expanded letter forcing presses of 500T tetra- and carries out shaped by fluid pressure, front deck hole, preceding windowsill, rear deck hole mould installion to 150T~
Shaped by fluid pressure is carried out on 200T ordinary press, steering indicating light punch die, which is installed on 63T punch presses, carries out shaped by fluid pressure, middle cabin hole
Mould installion is molded on bender.
Automobile integral type covering die structure, including front wheel housing, rear wheel cover, front deck hole, preceding windowsill, rear deck hole, steering indicating light
Hole, middle cabin hole mould, and keeper；The keeper respectively with front wheel housing, rear wheel cover, front deck hole, preceding windowsill, rear deck
Hole, steering lamp hole, middle cabin hole mould are connected with each other；According to positioning hole and forward and backward wheel cover, middle hot-water heating hole, luggage compartment is turned to
Lamp hole, oiling hole site sets the length of keeper respectively.
It is used as the improvement to automobile integral type covering die structure of the present invention：The front wheel housing, rear wheel cover, front deck
Hole, preceding windowsill, rear deck hole, steering lamp hole, middle cabin hole mould are by top mold frame, upper cavity, lower mode cavity, lower mold holder, upper poly- ammonia
Fat valve rubber, inner guiding post, lower polyurethane valve rubber, inner guiding post positioning hole are constituted；The upper cavity is arranged above top mold frame,
The upper surface of top mold frame is provided with polyurethane valve rubber, and the lower surface of upper cavity is provided with inner guiding post；The underface of lower mode cavity
Lower mold holder is provided with, the lower surface of lower mold holder is provided with lower polyurethane valve rubber, and the upper surface of lower mode cavity is set relative to inner guiding post
It is equipped with inner guiding post positioning hole；The shape of front wheel housing is set between the upper cavity and lower mode cavity of the front wheel housing；The rear wheel cover
Upper cavity and lower mode cavity between be set to the shape of rear wheel cover；Before being set between the upper cavity and lower mode cavity of the preceding windowsill
The shape of windowsill；The shape in rear deck hole is set between the upper cavity and lower mode cavity in the rear deck hole；It is described to turn to the upper of lamp hole
It is set to turn to the shape of lamp hole between die cavity and lower mode cavity；Set between the upper cavity and lower mode cavity of the middle cabin hole mould
For the shape of middle cabin hole mould.
It is used as the further improvement to automobile integral type covering die structure of the present invention：The front wheel housing, trailing wheel
Cover mould installion is on the post expanded letter forcing presses of 500T tetra-, and front deck hole, preceding windowsill, rear deck hole mould installion are common to 150T~200T
On forcing press, steering indicating light punch die is installed on 63T punch presses, middle cabin hole mould installion to bender.
Difference with the prior art of the present invention：
The present invention automobile side skin be integral type, to bus, minibus etc., no matter vehicle body have how long, side skin is all
Only one piece, so, in automobile body welding, splicing is avoided the need for, technological process is just very simple, and easily operation, outward appearance is beautiful
Sense is stronger, vehicle body crashworthiness hit intensity more preferably, almost without defective products, it may be said that be really achieved saving of labor, material-saving, time saving.
Automobile side skin is integral type, and template length is general at 6~8 meters, and we are using roll-in, cutting, shaped by fluid pressure etc.
Combination is processed, and according to plate profile structure feature, hydroforming die is split into several independent moulds, root when using
Shape is covered according to different sides can arbitrarily arrange in pairs or groups, so, each mould need not be too big, reduces the manufacturing expense of mould, contracts
Short die manufacturing cycle.
When vehicle is regenerated, identical structural element avoids the need for mold developing again, only need to readjust die location i.e.
Can, indivedual new constructions need to only put into a small amount of new die, the overall reduction manufacturing cost of covering, shorten vehicle retrofitting
Cycle.
Brief description of the drawings
The embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the relative position schematic diagram of present invention compacting covering shape and prelocalization hole 21 and rear positioning hole 22；
Fig. 2 is top mold frame 11, the structural representation of upper cavity 12；
Fig. 3 is lower mode cavity 13, the structural representation of lower mold holder 14；
Fig. 4 is the structural representation of keeper 23.
Embodiment
Embodiment 1, the process and its mould structure for giving a kind of automobile integral type covering.
The process of its automobile integral type covering includes roll-forming, excision forming, the step of shaped by fluid pressure three：
Roll-forming：
As shown in figure 1, roll-forming step be for side skin cross sectional shape to be molded the step of.Due to automobile kind
Class, model, the difference of size, the cross sectional shape of its shell are also different, so when being directed to progress roll forming every time, all needing
Its cross sectional shape is set in advance, according to the shape in its section, set the relevant parameter (phase herein of board-like roll squeezer
Related parameter refers to that by the relevant parameter of the cross sectional shape of automobile skin, because kinds of automobile is different, its covering cross sectional shape is also each
Differ, so before each operation, the relative set of covering cross sectional shape is carried out according to total class of its automobile), then will volume
Material is sent directly into board-like roll squeezer, after the smoothing, classification shaping by board-like roll squeezer, further according to side skin length severing.
It is no length limitation on theoretical method used in the present invention (due in the prior art, being mould shaped by fluid pressure
Mode, which, which is typically necessary mould and hydraulic test and cooperated, to be realized, current hydraulic test, often only to small model
Enclose area effectively, the covering length of automobile is again long, so when mould is suppressed, segmentation compacting can only be often carried out,
And the method mutually spliced), it is only necessary to intercepted according to pre-set motor vehicle length；And it is actual in institute of the invention
Use during, the operating efficiency of this method is very high, by taking common bus as an example, and it is about that it, which is molded into the working time blocked,
After 2min/, and its shaping, without the process such as splicing for its progress again.
Excision forming：
As shown in figure 1, needing to carry out accordingly the side skin obtained in roll-forming step in excision forming step
Hole position, special shape are precut；According to the species of automobile, model, the corresponding forward and backward wheel cover of setting, middle hot-water heating hole, OK
Lee cabin, turns to lamp hole, then oiling hole site put surplus well further according to its location parameter, has then compiled program, then with numerical control etc.
Ion cutting machine once cuts completion.
In the step of roll-forming, its side skin disposal molding, without separately splicing again, so in this step
In, without the calculating for hole position progress separately, it is only necessary to which the demand according to setting, which carries out corresponding cutting, to be cut,
By taking common bus as an example, the net cycle time of its excision forming is about 8min/, and because its cutting action is in an entirety
It is upper to complete, in cutting process, can intuitively it be observed for the external world for the position that each hole position etc. is cut, if larger
Parameter setting error situation, its external world can be intervened in time, reduce the disqualification rate of finished product.
Shaped by fluid pressure step passes through automobile integral type covering die to be molded to functional special shape on side skin
Completed after accordingly coordinating, and mould placement location must accurately in place, so by forward and backward wheel cover in this step, in
Between hot-water heating hole, luggage compartment turns to lamp hole, the cutting such as tank filler sleeve complete after, it is necessary to cut at least four work in advance at the two ends of side skin
Skill positioning hole, front and rear at least each 2 positioning holes, as shown in figure 1, prelocalization hole 21 and rear positioning hole 22, it is upper due to covering
Lower two ends following process is less, so be not suitable for setting positioning hole, and rear and front end is handled due to bound edge, so setting positioning hole
Afterwards, it does not have any influence to the overall construction of automobile completely by subsequent treatment；And as positioning hole, it needs accurate
It is determined that such as forward and backward wheel cover, middle hot-water heating hole, luggage compartment turns to the position of any one in lamp hole, tank filler sleeve；Further,
When general progress borehole setting, because the technique of circular hole is most simple, and in the case of a round orifices orientation, due to the present invention
In mould need to coordinate other equipment to be moved, after the locating rod 20 on its keeper 23 and circular hole are positioned, position
Part 23 carries out slight circulatory motion with a circular hole, and this cheap motion is likely to result in and positions inaccurate phenomenon,
So its locating effect is bad.And it is other, if positioned with least one elongated hole, need setting keeper when
Wait, the locating rod 20 on keeper 23 is configured relative to the shape of elongated hole, the cost of this set is apparently higher than circle
Positioning hole and the cost of cylindrical locating rod 20.
Shaped by fluid pressure：
In the present invention, used hydroforming die uses multi-mould splitting mode and completes overall shaped by fluid pressure
Step；As shown in Figures 2 and 3, mould of the invention is by top mold frame 11, upper cavity 12, lower mode cavity 13, lower mold holder 14, upper polyurethane
Valve rubber 15, inner guiding post 16, lower polyurethane valve rubber 17 are constituted；Upper cavity 12 is arranged above top mold frame 11, top mold frame 11
Upper surface be provided with polyurethane valve rubber 15, the lower surface of upper cavity 12 is provided with inner guiding post 16；Lower mode cavity 13 just under
Side is provided with lower mold holder 14, and the lower surface of lower mold holder 14 is provided with lower polyurethane valve rubber 17, and the upper surface of lower mode cavity 13 is relative
Inner guiding post 16 is provided with inner guiding post positioning hole 18.
The hydroforming die of the present invention is respectively arranged with front wheel housing relative to the hydraulic processes of the present invention, rear wheel cover, preceding
Cabin hole, preceding windowsill, rear deck hole, steering lamp hole, middle cabin hole mould and keeper 23, when compacting each time,
Corresponding operation is carried out using corresponding mould.
As shown in figure 4, above-described keeper 23 includes locating rod 20, length adjustment bar 21, die fixing device 22, it is fixed
It is connected with each other between position bar 20 and die fixing device 22 by length adjustment bar 21, can basis during actual use
Prelocalization hole 21 or rear positioning hole 22 and forward and backward wheel cover, middle hot-water heating hole, luggage compartment, are turned between lamp hole or tank filler sleeve
Relevant position, the length adjustment bar 21 for setting multiple length to fix, and when every time for using, from corresponding long
Spend adjusting rod 21.
Its mold use method is as follows：
By in corresponding mould installion to corresponding press equipment, e.g., front wheel housing, rear wheel cover are installed to the posts of 500T tetra-
On expanded letter forcing press, front deck hole, preceding windowsill, rear deck hole are installed on 150T~200T ordinary press, lamp hole peace will be turned to
It is attached on 63T punch presses, middle cabin hole is installed on bender.In the installation process of mould, according to the relative position of its hole position
Put, corresponding prelocalization pin or rear alignment pin are set thereon, realize the positioning of its correspondence mould.
Carry out front wheel housing, rear wheel cover, front deck hole, preceding windowsill, rear deck hole, steering indicating light successively by corresponding press device
Hole, the substep compacting in middle cabin hole.Every time when compacting, corresponding positioning hole is inserted by prelocalization pin or rear alignment pin
It is interior, it can realize being accurately positioned for mould by two positioning holes.
When compacting, it is first determined the length dimension of length adjustment bar 21, and choose for length dimension；Secondly exist
The two ends difference stationary positioned bar 20 and die fixing device 22 of length adjustment bar 21；Finally choose suitable mould and hydraulic test
Carry out corresponding pore pressure system；
In the pressing step of hole, correspondence mould is fixed with die fixing device 22 first；Secondly inner guiding post 16 is pressed into
In inner guiding post positioning hole 18, by carrying out mutual positioning between inner guiding post 16 and inner guiding post positioning hole 18, and mould thereon is confirmed
Whether the relative position between chamber 12 and lower mode cavity 13 is accurate.
If in the press-in inner guiding post of inner guiding post 16 positioning hole 18, completely suppressed, if inner guiding post 16 fails pressure
Enter in inner guiding post positioning hole 18, then stop compacting, by being suppressed again after position correction.
Finally, in addition it is also necessary to it is noted that listed above is only a specific embodiment of the invention.Obviously, it is of the invention
Above example is not limited to, there can also be many deformations.One of ordinary skill in the art can be straight from present disclosure
Export or all deformations associated are connect, protection scope of the present invention is considered as.
Claims (4)
1. a kind of automobile integral type skinning method；It is characterized in that：Including the steps：Roll-forming, excision forming, it is pressed into
Type；
In the roll-forming step：
First, according to the shape in automobile section, the relevant parameter of roll-in is set；
Secondly after, by roll squeezer successively smoothing coiled strip, be classified, being molded, further according to side skin length severing；
In the excision forming step：
First, according to the species of automobile, model, corresponding front wheel housing, rear wheel cover, middle hot-water heating hole, luggage compartment, steering indicating light are set
Hole, then oiling hole site puts surplus well further according to its location parameter；
Secondly position of positioning hole determination, is carried out according to automobile integral type covering die；It is respectively provided in the both sides of side skin few
Two circular locating openings；
Then, with cutting machine successively by front wheel housing, rear wheel cover, middle hot-water heating hole, luggage compartment turns to lamp hole, and tank filler sleeve is once cut
Cut completion；
Finally, positioning hole is cut and completed；
The compressing step is as follows：
Automobile integral type covering die is coordinated by the positioning hole on keeper and side skin to be positioned, and is carried out successively respectively
Front wheel housing, rear wheel cover, front deck hole, preceding windowsill, rear deck hole, turn to lamp hole, middle cabin hole hydraulic pressure it is compressing.
2. automobile integral type skinning method according to claim 1, it is characterized in that：Front wheel housing, rear wheel cover mould installion are arrived
It is pressed on the post expanded letter forcing presses of 500T tetra-, front deck hole, preceding windowsill, rear deck hole mould installion are common to 150T~200T
It is pressed on forcing press, steering indicating light punch die is installed on 63T punch presses and is pressed, middle cabin hole mould installion
It is molded on to bender.
3. automobile integral type covering die structure, it is characterized in that：Including front wheel housing, rear wheel cover, front deck hole, preceding windowsill, rear deck hole,
Turn to lamp hole, middle cabin hole mould, and keeper (23)；
The keeper (23) respectively with front wheel housing, rear wheel cover, front deck hole, preceding windowsill, rear deck hole, turn to lamp hole, middle cabin hole
Mould is connected with each other；
According to positioning hole and front wheel housing, rear wheel cover, middle hot-water heating hole, luggage compartment turns to lamp hole, and oiling hole site sets fixed respectively
The length of position part；
The front wheel housing, rear wheel cover, front deck hole, preceding windowsill, rear deck hole, steering lamp hole, middle cabin hole mould are by top mold frame
(11), upper cavity (12), lower mode cavity (13), lower mold holder (14), upper polyurethane valve rubber (15), inner guiding post (16), lower polyurethane
Valve rubber (17), inner guiding post positioning hole (18) are constituted；
The upper cavity (12) is arranged above top mold frame (11), and the upper surface of top mold frame (11) is provided with polyurethane rubber
Pad (15), the lower surface of upper cavity (12) is provided with inner guiding post (16)；Lower mold holder (14) is provided with immediately below lower mode cavity (13),
The lower surface of lower mold holder (14) is provided with lower polyurethane valve rubber (17), and the upper surface of lower mode cavity (13) is relative to inner guiding post (16)
It is provided with inner guiding post positioning hole (18)；
The shape of front wheel housing is set between the upper cavity (12) and lower mode cavity (13) of the front wheel housing mould；
The shape of rear wheel cover is set between the upper cavity (12) and lower mode cavity (13) of the rear wheel cover mould；
The shape of windowsill before being set between the upper cavity (12) and lower mode cavity (13) of the preceding windowsill mould；
The shape in rear deck hole is set between the upper cavity (12) and lower mode cavity (13) of rear deck hole mould；
It is set to turn to the shape of lamp hole between the upper cavity (12) and lower mode cavity (13) of the steering indicating light punch die；
The shape in middle cabin hole is set between the upper cavity (12) and lower mode cavity (13) of the middle cabin hole mould.
4. automobile integral type covering die structure according to claim 3, it is characterized in that：The front wheel housing, rear wheel cover mould
Tool is installed on the post expanded letter forcing presses of 500T tetra-, front deck hole, preceding windowsill, rear deck hole mould installion to 150T~200T usual pressures
On machine, steering indicating light punch die is installed on 63T punch presses, middle cabin hole mould installion to bender.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510367719.3A CN104985395B (en) | 2015-06-25 | 2015-06-25 | Automobile integral type skinning method and its mould structure |
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| CN201510367719.3A CN104985395B (en) | 2015-06-25 | 2015-06-25 | Automobile integral type skinning method and its mould structure |
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| CN104985395B true CN104985395B (en) | 2017-08-08 |
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| CN106670731B (en) * | 2016-07-14 | 2018-07-31 | 安徽安凯汽车股份有限公司 | A kind of production method examined for car windshield with the tooling of covering positioning |
| CN113732173A (en) * | 2021-08-26 | 2021-12-03 | 安徽安凯汽车股份有限公司 | Light passenger car side wall outer plate skin and forming process and forming equipment thereof |
| CN114274543B (en) * | 2021-12-15 | 2023-01-10 | 成都飞机工业（集团）有限责任公司 | Reinforced skin positioning and forming method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204867059U (en) * | 2015-06-25 | 2015-12-16 | 浙江定川机电制造有限公司 | Car integral type covering mould structure |
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| FR2745215B1 (en) * | 1996-02-23 | 1998-04-17 | Gec Alsthom Transport Sa | METHOD FOR PRODUCING A VEHICLE PAVILION, VEHICLE PAVILION AND VEHICLE COMPRISING SUCH A PAVILION |
| CN201799521U (en) * | 2010-08-12 | 2011-04-20 | 重庆市华青汽车配件有限公司 | Punching device of front door outer skin reinforcement mold for car |
| CN103143892B (en) * | 2013-03-08 | 2015-06-03 | 长春轨道客车股份有限公司 | Forming method for vehicle head covering |
| CN103624487A (en) * | 2013-04-28 | 2014-03-12 | 宝山钢铁股份有限公司 | Uncoiling blanking forming method |
| CN103341734A (en) * | 2013-07-08 | 2013-10-09 | 中国北车集团大同电力机车有限责任公司 | Locomotive side wall curved surface skin forming method |
| CN103949562B (en) * | 2014-04-02 | 2016-03-02 | 凌云工业股份有限公司 | A kind of automobile door sill component automatic production device |
| CN203764756U (en) * | 2014-04-10 | 2014-08-13 | 哈尔滨建成集团有限公司 | Guide pillar moving-out type three-in-one raising die with combination mode of upper die and lower die varied |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204867059U (en) * | 2015-06-25 | 2015-12-16 | 浙江定川机电制造有限公司 | Car integral type covering mould structure |
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