CN105268848B - Molding die for formed automobile back door-plate - Google Patents

Molding die for formed automobile back door-plate Download PDF

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Publication number
CN105268848B
CN105268848B CN201510672405.4A CN201510672405A CN105268848B CN 105268848 B CN105268848 B CN 105268848B CN 201510672405 A CN201510672405 A CN 201510672405A CN 105268848 B CN105268848 B CN 105268848B
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China
Prior art keywords
die
forming
plate
door
movable core
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CN201510672405.4A
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Chinese (zh)
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CN105268848A (en
Inventor
王玉成
付再兴
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Chery Automobile Co Ltd
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Chery Automobile Co Ltd
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Priority to CN201510672405.4A priority Critical patent/CN105268848B/en
Publication of CN105268848A publication Critical patent/CN105268848A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/10Die sets; Pillar guides

Abstract

The present invention relates to a kind of molding die for formed automobile back door-plate,Including upper mold and lower die,Actuating unit driving upper mold moves up and down and forming surface of the forming surface of upper mold away from or close to lower die,Blank holder is provided with around the forming surface of lower die,Movable core is provided with the forming surface of lower die,Movable core is connected with elevating mechanism,Elevating mechanism driving activity core moves up and down,The forming surface for being molded back door plate moulding region is provided with movable core,Coordinated using the movable core being arranged in lower die and upper mold,Plate to be formed is placed in lower die,Upper mold moves down,Upper mold is contacted with blank holder,So as to by plate compact,Elevating mechanism can drive movable core to move up,So that the upper forming surface of movable core is highly higher than the forming surface height of lower die,So as to realize the shaping to the complex model region on back door-plate first,Upper mold continues to be displaced downwardly to bottom dead centre,So as to which other drape formings of back door-plate are finished.

Description

Molding die for formed automobile back door-plate
Technical field
The invention belongs to cold punching die technical field, more particularly to a kind of shaping mould for formed automobile back door-plate Tool.
Background technology
With the fast development of auto industry, automobile is more and more general in the use of Chinese family as the easily vehicles And particularly the sharp unique automobile of some shapes is deep by numerous automobile consumers favor.For the automobile of unique outlook, its car Often structure is complex for the body sheet metal component particularly large-scale covering such as gusset, back door.
As certain SUV vehicle of Saic Chery Automobile Co., Ltd, with reference to shown in Fig. 1, the shadow region A of back door-plate Surface modeling is complex, if the back door-plate of this kind of vehicle is molded using common drawing die, it is easy to so that the moon Shadow zone domain A wrinkles, the common drawing mold structure of above-mentioned shaping back door-plate, with reference to shown in Fig. 2, including on die holder Cavity plate 20 on punch-pin 10 and upper mold seat, the forming surface side of punch-pin 10 are provided with blank holder 12, the lower face of blank holder 12 with The mandril 11 of lifting body is fixed, lifting body drive mandril 11 with cavity plate 20 with flatten enclose 12 pressing and it is synchronous on move down Dynamic, when being molded the back door-plate, cavity plate 20 moves down above-mentioned drawing die, is 20 forming surface side of cavity plate and blank holder first 12 against so that plate to be formed be locked, cavity plate 20 continues to move down, until so that the forming surface of cavity plate 20 and punch-pin 10 Forming surface coordinates, so that plate further calendering formation, exists more yet with such automotive back door-plate Complicated moulding face region, such as is difficult to be molded according to above-mentioned molding die punch forming, the forming surface of one side mould, On the other hand it is easy to simply by a punching press so that the complicated moulding face region of such product produces serious corrugation Metaboly.Above-mentioned deformed product can only alleviate corrugated region by later stage metal plate repairing, however, simple passes through The problem of mode of metal plate repairing is to eliminate the corrugated problem of back door-plate, on the one hand it is difficult to corrugation be completely eliminated, on the other hand, It is relatively thin due to shadow region A, it is easy to the phenomenon torn occur.
The content of the invention
It is an object of the invention to:A kind of molding die that can ensure that back door sheet metal forming quality is provided.
To achieve the above object, the technical solution adopted by the present invention is:A kind of shaping for formed automobile back door-plate Mould, including upper mold and lower die, actuating unit driving upper mold move up and down and the forming surface of upper mold away from or close to lower die into Type face, is provided with blank holder around the forming surface of lower die, movable core, the slide core is provided with the forming surface of the lower die Mould is connected with elevating mechanism, and elevating mechanism driving activity core moves up and down, and is provided with movable core for being molded back door The forming surface of plate moulding region A.
Compared with prior art, technique effect existing for the present invention is:Using the movable core being arranged in lower die with it is upper Mould coordinates, and plate to be formed is placed in lower die, and upper mold moves down, and upper mold is contacted with blank holder, so that by plate compact, rises Descending mechanism can drive movable core to move up so that and the upper forming surface of movable core is highly higher than the forming surface height of lower die, so that The shaping to the complex model region on back door-plate can be realized first, and upper mold continues to be displaced downwardly to bottom dead centre, so as to by back Other drape formings of door-plate finish.
Brief description of the drawings
Fig. 1 is the structure diagram of automotive back door-plate;
Fig. 2 is the existing forming die structure schematic diagram for being used to be molded back door-plate;
Fig. 3 to Fig. 6 is the molding die completed state schematic diagram of the present invention;
Fig. 7 is the structure diagram of the movable core of the present invention.
Embodiment
With reference to Fig. 1 to Fig. 7, the present invention is further described:
A kind of molding die for formed automobile back door-plate, including upper mold 10 and lower die 20, actuating unit driving on Mould 10 moves up and down and forming surface 201 of the forming surface of upper mold 10 101 away from or close to lower die 20, the forming surface 201 of lower die 20 Surrounding is provided with blank holder 21, movable core 30 is provided with the forming surface 201 of the lower die 20, the activity core 30 is with rising Descending mechanism connects, and elevating mechanism driving activity core 30 moves up and down, and is provided with movable core 30 for being molded back door-plate The forming surface 31 of sculpted zone A.
With reference to Fig. 3 to Fig. 6, the forming surface of the forming surface 31 and upper mold 10 of the movable core 30 being arranged in lower die 20 is utilized 101 coordinate, and plate B to be formed is placed in lower die 20, and upper mold 10 moves down, and upper mold 10 is contacted with blank holder 21, so that will Plate compact, elevating mechanism can be operated alone movable core 30 and move up so that 31 height of upper forming surface of movable core 30 is higher than The height of forming surface 201 of lower die 20, so as to the shaping for the complex model region A being molded first on back door-plate, is abandoned existing In technology by the way of one-step shaping caused by complex model region A the bad phenomenon such as corrugation, under upper mold 10 continues Bottom dead centre is moved to, so as to which other drape formings of back door-plate are finished.
As the preferred solution of the present invention, to realize be pressed into more structurally sound to back door-plate complex model region A Type, the slide-and-guide that the activity core 30 forms vertical direction with lower die 20 coordinate, and movable core 30 is slided with lower die 20 and led To cooperation, the shift phenomenon that movable core 30 can be avoided to occur during moving down, even offset naked eyes can not be seen clearly Also the stable molding of complex model region A can be had an impact;
Preferably, the elevating mechanism includes the nitrogen gas spring 40 being arranged in lower die 20, and the cylinder body of nitrogen gas spring 40 is consolidated Surely it is arranged in lower die 20, the plunger rod of nitrogen gas spring 40 is vertical and rod end is connected with movable core 30, the activity core 30 When being in highest order, the height of the forming surface 31 of movable core 30 is higher than the height of forming surface 201 of lower die 20.Utilize nitrogen gas spring 40 characteristic, can effectively implement the support to movable core 30, during lower die 10 moves down, the forming surface 101 of upper mold 10 Side is pressed with blank holder 21, and blank holder 21 declines, and the forming surface 31 of the forming surface 101 of upper mold 10 first with movable core 30 is pressed Close, so as to be molded the complex model region A of back door-plate first, upper mold 10 continues to move down, so that under driving activity core 30 Drop so that the compression of nitrogen gas spring 40 shortens, so that the forming surface 201 of other forming surfaces 101 and lower die 20 of upper mold 10 is pressed Close, so as to be molded other sculpted zones of back door-plate, and then complete the forming operation to whole back door-plate;When shaping finishes Afterwards, upper mold 10 resets, since nitrogen gas spring 40 has certain delay performance, nitrogen gas spring 40 will not reset at once, nitrogen Movable core 30 in gas spring 40 will not immediately rise, but blank holder 21 first rises, so that the back door after shaping Plate lifting simultaneously departs from the forming surface 101 of upper mold 10, just because of the delay performance of nitrogen gas spring 40, can avoid movable core 30 Lifting synchronous with blank holder 21, or movable core 30 will be faster than the lifting action of blank holder 21, and then can avoid activity The upper surface of core 30 causes the phenomenon for the complex model region jacking deformation for being molded door-plate.
Further, limiting section is provided between the movable core 30 and lower die 20, the limiting section is used to limit 30 displacement lower limit of activity core processed.Specifically, the limiting section is the limited block 32 being arranged in lower die 20, the limited block 32 Upper surface and movable core 30 lower face against or away from coordinating.Lower face and limited block 32 using movable core 30 The spacing cooperation of upper surface, continues to move down so as to limit movable core 30.
The movable core 30 is in plate-like, its forming surface 31 is arranged on the upper surface of movable core 30, slide core Guide pad 34 provided around mould 30, the slide-and-guide that the guide pad 34 forms vertical direction with lower die 20 coordinates, described The cylinder body of nitrogen gas spring 40 is arranged on pedestal 33, the pedestal 33 and lower die 20 form it is detachable be fastenedly connected, the limit Position block 32 is arranged on pedestal 33.
Further, the blank holder 21 is arranged on lifting body, and lifting body drives blank holder 21 with upper mold 10 synchronously move up and down with the pressing of blank holder 21.Lifting body includes the mandril 50 for being arranged on the lower section of blank holder 21, institute Mandril 50 is stated to be connected with air-cushion unit, air-cushion unit driving blank holder 21 follow upper mold 10 move up and down maneuver.
Finally, the whole action process of the lower present invention of summary:
Plate B to be formed is placed on the blank holder 21 for being lifted to highest order, 21 height of blank holder at this time is higher than The height of the forming surface 31 of movable core 30 and the forming surface 201 of lower die 20, the height of the forming surface 31 of movable core 30 are higher than The height of the forming surface 201 of lower die 20, operation upper mold 10 move down so that 101 side of forming surface and the blank holder 21 of upper mold 10 lean on Near and press so as to which plate B to be formed tentatively be compressed, upper mold 10 continues to move down, the forming surface 101 of upper mold 10 first with activity The forming surface of core 31 is close and presses, so that complex model region A be molded, upper mold 10 continues to move down, so that upspringing Spring 40 compresses, until other forming surfaces 101 of upper mold 10 and the forming surface 201 of lower die 20 are close and press, so that after being molded Other sculpted zones of tailgate plate, until being displaced downwardly to the bottom dead centre of upper mold 10, whole forming action finishes upper mold 10;Upper mold 10 is multiple During position, holding pad 21 synchronously rises with the rising of upper mold 10, until upper mold 10 and reset, holding pad 21 and upper mold 10 separation, molding back door-plate are taken out, nitrogen gas spring 40 is inflated and drives movable core 30 to rise, so that whole device is answered Position is completed, and continues to place plate B to be formed, into the forming operation of next back door-plate.

Claims (6)

  1. A kind of 1. molding die for formed automobile back door-plate, it is characterised in that:Including upper mold (10) and lower die (20), move Force mechanisms driving upper mold (10) moves up and down and forming surface of the forming surface of upper mold (10) (101) away from or close to lower die (20) (201), blank holder (21) is provided with around the forming surface (201) of lower die (20), is set in the forming surface (201) of the lower die (20) Movable core (30) is equipped with, the activity core (30) is connected with elevating mechanism, and elevating mechanism driving activity core (30) is up and down It is mobile, the forming surface (31) for being molded back door plate moulding region A is provided with movable core (30);
    Limiting section is provided between the movable core (30) and lower die (20), the limiting section is used to limit movable core (30) displacement lower limit.
  2. 2. the molding die according to claim 1 for formed automobile back door-plate, it is characterised in that:The slide core The slide-and-guide that mould (30) forms vertical direction with lower die (20) coordinates, and the elevating mechanism includes being arranged in lower die (20) Nitrogen gas spring (40), the cylinder body of nitrogen gas spring (40) are fixed in lower die (20), and the plunger rod of nitrogen gas spring (40) is vertical And rod end is connected with movable core (30), when the activity core (30) is in highest order, the forming surface of movable core (30) (31) forming surface (201) height of the height higher than lower die (20).
  3. 3. the molding die according to claim 1 for formed automobile back door-plate, it is characterised in that:The limiting section To be arranged on the limited block (32) in lower die (20), the upper surface of the limited block (32) and the lower face of movable core (30) are supported Lean on or away from cooperation.
  4. 4. the molding die according to claim 3 for formed automobile back door-plate, it is characterised in that:The activity Core (30) is in plate-like, its forming surface (31) is arranged on the upper surface of movable core (30), is set around movable core (30) The guide pad (34) put, the slide-and-guide that the guide pad (34) forms vertical direction with lower die (20) coordinate, nitrogen gas spring (40) cylinder body is arranged on pedestal (33), the pedestal (33) and lower die (20) form it is detachable be fastenedly connected, the limit Position block (32) is arranged on pedestal (33).
  5. 5. the molding die according to claim 1 for formed automobile back door-plate, it is characterised in that:The blank holder (21) it is arranged on lifting body, lifting body driving blank holder (21) is same with the pressing of upper mold (10) and blank holder (21) Step moves up and down.
  6. 6. the molding die according to claim 5 for formed automobile back door-plate, it is characterised in that:Lifting body bag The mandril (50) being arranged on below blank holder (21) is included, the mandril (50) is connected with air-cushion unit, air-cushion unit driving flanging Circle (21) follow upper mold (10) move up and down maneuver.
CN201510672405.4A 2015-10-14 2015-10-14 Molding die for formed automobile back door-plate Active CN105268848B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510672405.4A CN105268848B (en) 2015-10-14 2015-10-14 Molding die for formed automobile back door-plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510672405.4A CN105268848B (en) 2015-10-14 2015-10-14 Molding die for formed automobile back door-plate

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CN105268848A CN105268848A (en) 2016-01-27
CN105268848B true CN105268848B (en) 2018-05-11

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Application Number Title Priority Date Filing Date
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107413954A (en) * 2017-08-30 2017-12-01 安徽江淮汽车集团股份有限公司 A kind of drawing die
CN109675993A (en) * 2018-12-27 2019-04-26 江苏裕邦车业科技有限公司 A kind of auto parts and components stamping equipment of more executing agency's synchronous processings

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57193244A (en) * 1981-05-25 1982-11-27 Nissan Motor Co Ltd Cushion drawing press die
JPS5884620A (en) * 1981-11-12 1983-05-20 Nissan Motor Co Ltd Drawing press die
CN201613307U (en) * 2009-11-10 2010-10-27 浙江吉利汽车有限公司 Vehicle door outer panel drawing mould
CN202752441U (en) * 2012-06-29 2013-02-27 重庆桃园金属表面处理有限公司 Stamping mold of automobile left back door outer plate and right back door outer plate
CN102974694B (en) * 2012-11-05 2016-02-24 浙江吉利汽车研究院有限公司杭州分公司 A kind of diel of single action press
CN203109012U (en) * 2013-01-17 2013-08-07 奇瑞汽车股份有限公司 Automobile die movable blank holder
CN103586342B (en) * 2013-10-15 2017-04-12 浙江吉利汽车研究院有限公司 Drawing die
CN103801624B (en) * 2014-03-10 2016-03-16 安徽江淮汽车股份有限公司 A kind of door skin mould

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