CN104438589B - A kind of automobile dash board Lower extension Sheet Metal Forming Technology and mould - Google Patents
A kind of automobile dash board Lower extension Sheet Metal Forming Technology and mould Download PDFInfo
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- CN104438589B CN104438589B CN201410466001.5A CN201410466001A CN104438589B CN 104438589 B CN104438589 B CN 104438589B CN 201410466001 A CN201410466001 A CN 201410466001A CN 104438589 B CN104438589 B CN 104438589B
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- holding pad
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Abstract
The invention discloses a kind of automobile dash board Lower extension Sheet Metal Forming Technology and mould, use new drawing die mould structure and die face technique, reduce the scrappage of process part processing in production process, and in the case of process part processing shape is unfavorable for that stock utilization promotes, it is achieved that promote stock utilization, ensure accessory size and the purpose of presentation quality；The content of compression Sheet Metal Forming Technology, in the case of requiring to reduce lathe usage quantity and operator's quantity, it is achieved one group of mould of the component sharing of two kinds of relevant vehicles produces.After Sheet Metal Forming Technology change, the stock utilization of certain vehicle front panel Lower extension (left/right) part existing can improve 9%, and the board dimension used also has the space reduced further；The scrappage of drawing operation part is reduced to present less than 0.2% by original 4.5%；The qualification rate of part has been brought up to entirely reach more than 92% by 80%～the 87% of original instability.
Description
Technical field
The present invention relates to stamp forming technology field, particularly to a kind of automobile dash board Lower extension punching press
Technique and mould.
Background technology
The plate of existing automobile dash board Lower extension is rectangle plate, a size of 925mm × 635mm.
The binder mode of its drawing die is that four limits compressions feed simultaneously.
Below in conjunction with concrete techniqueflow, the drawing work of this part is described further:
Before A, the drawing action of plate start, the blanking cutter being contained on holding pad and upper bolster is by rectangular slab
Two corner blankings of material, the structure of its lower mold and upper mold is as Figure 1-Figure 4；
Plate 4 regions up and down are compressed by B, upper mold and holding pad, start drawing action, plate
Flow to mold center via these 4 regions.
The technique of vehicle I front panel Lower extension (left/right) is arranged as shown in Figure 5-Figure 8, is followed successively by
OP10 drawing, OP20 trimming pre-punched hole, OP30 flanging and restriking separate with OP40 punching side punching.This work
The part connecting method of skill can avoid process part processing to form semi-enclosed cavity, and the control to stock utilization has relatively
Big help.
But existing punching production technological design existing defects, part material is high-yield strength plate, mould
Can cause, after tool use time length, the accessory size qualification rate Quality Down produced, and due to tensioning member
Cracking, (scrappage of drawn component is to cause the part drawing crack scrappage in actual production process to uprise
Reach 4.5%)；And the process part processing connecting method of front panel Lower extension (left/right) part has been formed
Closed cavity, designs mould by common stamping parts forming technology and can not fundamentally promote material use
Rate.
Therefore, for above-mentioned situation, it is ensured that accessory size and presentation quality, the material use of part is improved
Rate, reduces part rejection rate, becomes the important technological problems that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
In view of this, the invention provides a kind of automobile dash board Lower extension Sheet Metal Forming Technology and mould, right
The Sheet Metal Forming Technology of front panel Lower extension (left/right) has carried out change mould newly developed, improves zero
Part size quality, improves the stock utilization of part, reduces part rejection rate.
For achieving the above object, the present invention provides following technical scheme:
A kind of automobile dash board Lower extension Sheet Metal Forming Technology, including step:
S1, OP10 drawing die, including step:
S11, upper mold move downward, until being installed on the upper mold auxiliary holding pad contact plate within upper bolster
Material；Now by upper mold auxiliary holding pad, it is installed on the lower mold auxiliary holding pad within die shoe by plate
Cavity edge region in four limits is pushed down, and is installed on the lower mold cylinder within lower mold and orders about lower mold auxiliary pressure
Flitch upwards jack-up upper mold auxiliary holding pad, subsequently into step S12；
S12, be installed on the upper mold cylinder within upper mold order about upper mold auxiliary holding pad move downward, upper mold
Cylinder pressure is more than being installed on the lower mold cylinder pressure within lower mold, and upper mold cylinder will be originally by lower mold cylinder
Order about the upper mold auxiliary holding pad pressure of upwards jack-up, and make the plate generation shape of cavity edge areas adjacent
Becoming, until the deformation of this part plate is consistent with die face, auxiliary holding pad can be only achieved relatively up and down
Resting state, subsequently into step S13；
S13, upper mold continue to move downward, the plate die profile by upper mold and the main holding pad pressure of lower mold
Living other three edge regions, along with upper mold continues to move downward, plate is to mold center's direction flowing, simultaneously
Cavity edge region in plate is compressed will not flow by upper mold auxiliary holding pad and lower mold auxiliary holding pad
Dynamic；After mould reaches end state, enter step S14；
S14, make upper mold auxiliary holding pad, die profile and lower mold auxiliary holding pad, main holding pad at mould
Has separated in synchronization during opening, until upper mold auxiliary holding pad is finally complete with lower mold auxiliary holding pad
Separate, subsequently into step S2；
S2, OP20 edger: once cut out in most of sideline of part, only retains local the most earnestly
While to facilitate process part processing to transmit to subsequent processing, subsequently into step S3；
S3, OP30 piercing and flanging splitting die；Including separation, punching, flange and shaping, subsequently into
Step S4；
S4, OP40 incised notch mouth die.
Preferably, plate is isosceles trapezoid plate, and its long limit is cavity sides.
Preferably, in step S14, auxiliary holding pad is synchronized/forces back body and pushes away by the cylinder of lower mold
Become owner of between holding pad and upper mold auxiliary holding pad, make upper mold auxiliary holding pad, die profile and lower mold auxiliary
Pressing aid flitch, main holding pad realize separated in synchronization, until upper mold auxiliary holding pad is final and lower mold auxiliary pressure
Flitch is kept completely separate.
Preferably, step S14 also includes: finally complete with lower mold auxiliary holding pad at upper mold auxiliary holding pad
After fully separating, auxiliary holding pad is synchronized/forces back body by main holding pad and upper mold by the cylinder of lower mold
Retract between auxiliary holding pad；If cylinder retracts inefficacy, force to retract hook auxiliary holding pad can be synchronized/
Back body is forced to retract in situ.
Preferably, the OP40 incised notch mouth die in step S4, with the OP30 piercing and flanging in step S3
Splitting die is placed on same press use.
A kind of automobile dash board Lower extension diel, including upper die and lower die, internally installed in upper mold
There are upper mold auxiliary holding pad, die profile and upper mold cylinder, the position of upper mold auxiliary holding pad and plate four
Cavity edge region in individual limit is relative, and upper mold auxiliary holding pad has the cavity edge region with plate
Corresponding forming surface, upper mold cylinder can order about upper mold auxiliary holding pad and move downward；
There are lower mold auxiliary holding pad, main holding pad and lower mold cylinder, lower mold auxiliary pressure lower mold is internally installed
Cavity edge region in four limits in the position of flitch and plate is relative, and lower mold auxiliary holding pad have with
The corresponding forming surface in cavity edge region of plate, lower mold cylinder can order about lower mold auxiliary holding pad upwards
Motion；
Upper mold cylinder pressure is more than lower mold cylinder pressure；
Main holding pad includes the part relative with other three edge regions in four limits of plate with die profile.
Preferably, upper mold cylinder and lower mold cylinder are nitrogen cylinder.
Preferably, also include that the cylinder being installed on the main holding pad of lower mold and auxiliary holding pad synchronize/force
Back body, cylinder can drive with lathe source of the gas, auxiliary holding pad synchronizes/force back body at symbol
The suitable time points closing press runs pushes between main holding pad and upper mold auxiliary holding pad in time.
Preferably, also include that the pressure being installed on lower mold retracts hook, it is possible to when lathe source of the gas lost efficacy by auxiliary
Pressing aid flitch synchronizes/forces back body and retracted by between main holding pad and upper mold auxiliary holding pad.
From above-mentioned technical scheme it can be seen that the present invention provide automobile dash board Lower extension presser
Skill, uses new drawing die mould structure and die face technique, by the material type of flow of drawing die by tradition
4 limits charging become 3 limits charging, although the process part processing of this Sheet Metal Forming Technology is semi-enclosed cavity, but by
Do not have material to flow in open cavity beyond, promoted so stock utilization will not reduce；
Reduce the scrappage of process part processing in production process, and be unfavorable for that stock utilization promotes in process part processing shape
In the case of, it is achieved that promote stock utilization, ensure accessory size and the purpose of presentation quality.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the lower mold of drawing die in prior art；
Fig. 2 is the structural representation of the upper mold of drawing die in prior art；
Fig. 3 is the sectional view in Fig. 1 along Section A-A；
Fig. 4 is the sectional view in Fig. 1 along section B-B；
Fig. 5 is the schematic diagram of draw step in existing Sheet Metal Forming Technology；
Fig. 6 is the schematic diagram of (trimming+pre-punched hole) step in existing Sheet Metal Forming Technology；
Fig. 7 is the schematic diagram of (flange+shaping) step in existing Sheet Metal Forming Technology；
Fig. 8 is the schematic diagram of (punching+separation) step in existing Sheet Metal Forming Technology；
The structural representation of the lower mold of the drawing die that Fig. 9 provides for the embodiment of the present invention；
The structural representation of the upper mold of the drawing die that Figure 10 provides for the embodiment of the present invention；
Figure 11 is the sectional view in Fig. 9 along Section A-A；
Figure 12 is the sectional view in Fig. 9 along section B-B；
The schematic diagram of draw step in the Sheet Metal Forming Technology that Figure 13 provides for the embodiment of the present invention；
The schematic diagram of trimming process in the Sheet Metal Forming Technology that Figure 14 provides for the embodiment of the present invention；
(separation+punching+flange+shaping) step in the Sheet Metal Forming Technology that Figure 15 provides for the embodiment of the present invention
Schematic diagram；
During another vehicle part of production that Figure 16 provides for the embodiment of the present invention, the steel plate mould used
The schematic diagram of Sheet Metal Forming Technology (trimming) step.
Wherein, 1 is cylinder, and 2 synchronize/force back body for auxiliary holding pad, and 3 assist binder for lower mold
Plate, 4 is main holding pad, and 5 is die shoe, and 6 is punch, and 7 retract hook for pressure, and 8 assist for upper mold
Holding pad, 9 is die profile, and 10 is upper bolster, and 11 is upper mold cylinder, and 12 is lower mold cylinder.
Detailed description of the invention
The invention discloses a kind of automobile dash board Lower extension Sheet Metal Forming Technology and mould, downward to front panel
Stretch the Sheet Metal Forming Technology of part (left/right) and carried out change mould newly developed, improve accessory size matter
Amount, improves the stock utilization of part, reduces part rejection rate.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
Refer to the structural representation of the lower mold of the drawing die that Fig. 9-Figure 16, Fig. 9 provide for the embodiment of the present invention
Figure；The structural representation of the upper mold of the drawing die that Figure 10 provides for the embodiment of the present invention；Figure 11 is Fig. 9
The middle sectional view along Section A-A；Figure 12 is the sectional view in Fig. 9 along section B-B；Figure 13 is this
The schematic diagram of draw step in the Sheet Metal Forming Technology that bright embodiment provides；Figure 14 provides for the embodiment of the present invention
Sheet Metal Forming Technology in the schematic diagram of trimming process；In the Sheet Metal Forming Technology that Figure 15 provides for the embodiment of the present invention
The schematic diagram of (separation+punching+flange+shaping) step；The production that Figure 16 provides for the embodiment of the present invention
During another vehicle part, the schematic diagram of Sheet Metal Forming Technology (trimming) step of the steel plate mould used.
The automobile dash board Lower extension Sheet Metal Forming Technology that the embodiment of the present invention provides, its core improvement exists
In, including step:
S1, OP10 drawing die, including step:
S11, upper mold move downward, and connect until being installed on the upper mold auxiliary holding pad 8 within upper bolster 10
Touch panel material；Now by upper mold auxiliary holding pad 8, it is installed on the lower mold auxiliary binder within die shoe 5
Cavity edge region in four limits of plate is pushed down by plate 3, is installed on the lower mold cylinder 12 within lower mold and drives
Make lower mold auxiliary holding pad 3 upwards jack-up upper mold auxiliary holding pad 8, subsequently into step S12；
S12, be installed on the upper mold cylinder 11 within upper mold order about upper mold auxiliary holding pad 8 move downward,
Upper mold cylinder 11 pressure is more than being installed on lower mold cylinder 12 pressure within lower mold, and upper mold cylinder 11 is by former
This upper mold auxiliary holding pad 8 being ordered about upwards jack-up by lower mold cylinder 12 is depressed, and makes cavity edge region
Neighbouring plate deforms upon, until the deformation of this part plate is consistent with die face, assists pressure up and down
Flitch can be only achieved relative static conditions, subsequently into step S13；In this step, plate is allowed
Locally (cavity edge region) is starting first molding before pulling action for the consistent shape of mould local profile
Become；
After S13, upper mold auxiliary holding pad 8 and lower mold auxiliary holding pad 3 reach relative static conditions, on
Mould continues to move downward, plate by the die profile 9 of upper mold and the main holding pad 4 of lower mold push down other three
Edge regions, along with upper mold continues to move downward, plate is to mold center's direction flowing, simultaneously in plate
Cavity edge region is compressed will not flow by upper mold auxiliary holding pad 8 and lower mold auxiliary holding pad 3；
After mould reaches end state, enter step S14；
S14, make upper mold auxiliary holding pad 8, die profile 9 and lower mold auxiliary holding pad 3, main holding pad
4 during mould is opened separated in synchronization, press until upper mold auxiliary holding pad 8 is final with lower mold auxiliary
Flitch 3 is kept completely separate, subsequently into step S2；So far mould completes a complete pulling action, and
Tensioning member is not because the separated in synchronization of several parts deforms；
S2, OP20 edger: once cut out in most of sideline of part, only retains local the most earnestly
While to facilitate process part processing to transmit to subsequent processing, subsequently into step S3；Original Sheet Metal Forming Technology is due to operation
Part has side cut step, it is necessary to the trimming operation of process part processing is arranged to twice sequence, and (two mold OP20 are just
Cut and cut with OP40 side), and improve the process part processing after technique and can not use side cutting process, new technology
The improvement of operation content compression is the equal of to be fused to by the trimming work step of OP20 and OP40 of old technology
Existing OP20 shaving die, once cuts out most of sideline of part, retains local tangent trimming
To facilitate process part processing to transmit to subsequent processing；Owing to process part processing does not has completely separable, can be only with a people
Process part processing is just put lower operation smoothly, and the design of new Sheet Metal Forming Technology can adapt to stream equally the most smoothly
Waterline produces；
S3, OP30 piercing and flanging splitting die, including separation, punching, flange and shaping, subsequently into
Step S4；
S4, OP40 incised notch mouth die.
From above-mentioned technical scheme it can be seen that the embodiment of the present invention provide automobile dash board Lower extension
Sheet Metal Forming Technology, uses new drawing die mould structure and die face technique, by the material type of flow of drawing die
3 limits charging (as shown in figure 13) are become, although the operation of this Sheet Metal Forming Technology by 4 traditional limit chargings
Part is semi-enclosed cavity, but owing to open cavity beyond (cavity sides) does not has material to flow, so material
Expect that utilization rate will not reduce to have promoted；Reduce the scrappage of process part processing in production process, and
In the case of process part processing shape is unfavorable for that stock utilization promotes, it is achieved that promote stock utilization, guarantee
Accessory size and the purpose of presentation quality.
As preferably, plate is isosceles trapezoid plate, and its long limit is cavity sides.The most in step s 11,
The longest edge region of plate is pushed down by upper mold auxiliary holding pad 8 and lower mold auxiliary holding pad 3, and at S12
In make this part of plate deform upon by the effect of cylinder；In step s 13, die profile 9 He
Main holding pad 4 pushes down the minor face of plate and two these three edge regions of waist edge.By change part at drawing die
Interior connecting method, is made production plate into isosceles trapezoid by rectangle, eliminates rectangle in prior art
The process of two corner blankings of plate, while simplifying operation, also improves the utilization rate of material.
In order to optimize above-mentioned technical scheme further, in step S14, the cylinder 1 of lower mold will auxiliary
Holding pad synchronizes/forces back body 2 and pushes between main holding pad 4 and upper mold auxiliary holding pad 8, makes
Mould auxiliary holding pad 8, die profile 9 and lower mold auxiliary holding pad 3, main holding pad 4 realize synchronizing to divide
From, until upper mold auxiliary holding pad 8 is finally kept completely separate with lower mold auxiliary holding pad 3.Complete at mould
After pulling action, during upper mold moves upward along with lathe slide block, drive upper mold auxiliary holding pad 8
The power of upper mold cylinder 11 be delivered on main holding pad 4 by forced synchronism/backing mechanism 2, thus protect
Demonstrate,proved main holding pad 4, die profile 9, upper and lower mould auxiliary holding pad be in during mould is opened
The state of synchronization action, it is to avoid certain assembly is because the action asynchronous situation causing tensioning member to scrap goes out
Existing
In the specific embodiment that this programme provides, step S14 also includes: assist holding pad 8 in upper mold
Final be kept completely separate with lower mold auxiliary holding pad 3 after, the cylinder 1 of lower mold will auxiliary holding pad synchronize/by force
Back body 2 processed is assisted by main holding pad 4 and upper mold and retracts between holding pad 8；If cylinder 1 retracts
Lost efficacy, and forced to retract hook 7 and auxiliary holding pad can be synchronized/force back body 2 and retract original position.
The new drawing work used is owing to employing two pieces of auxiliary holding pads (on upper die and lower die each one
Block), mould complete punching press action complete time, need to control well main holding pad 4 and upper mold and up and down
The concordance of mould auxiliary holding pad motion, otherwise upper mold auxiliary holding pad 8 will be because of the work of nitrogen cylinder
With, produce during mould is opened relative to upper mold motion down, drawn component top is deformed.This
Time, two the auxiliary holding pads being arranged on main holding pad 4 synchronize/force back body 2 and begun to
Act on.
By above-mentioned technique, it is possible to avoid upper mold auxiliary holding pad 8 during next punching press action
Damage, and due to upper mold auxiliary holding pad 8 during die drawn action incorrect owing to being in
Position and cause tensioning member to scrap.
In order to optimize above-mentioned technical scheme further, the OP40 incised notch mouth die in step S4, with step
OP30 piercing and flanging splitting die in S3 is placed on same press use.Have compressed Sheet Metal Forming Technology, vehicle
The production process of I part has 4 original roads to be reduced to 3 present roads.This time process change also has one
Purpose, is to realize raw on same group of mould to realize the part of vehicle II and vehicle I newly developed
Produce, and the trim lines of both vehicles only left member has local different, so a set of auxiliary work can also be increased
Sequence (simple steel template die) is for producing the left member of another vehicle II.
The embodiment of the present invention additionally provides a kind of automobile dash board Lower extension diel, including upper mold and
Lower mold, upper mold includes upper bolster 10 and die profile 9, and lower mold includes main holding pad 4, die shoe 5 and
Punch 6, die profile 9 therein and punch 6 are corresponding, are respectively acting on the upper and lower surface of plate；
Its core improvement is, has upper mold auxiliary holding pad 8 and upper mold cylinder upper mold is internally installed
11, the cavity edge region in four limits in position and plate of upper mold auxiliary holding pad 8 is relative, and upper mold
Auxiliary holding pad 8 has the corresponding forming surface in cavity edge region with plate, and upper mold cylinder 11 can drive
Upper mold auxiliary holding pad 8 is made to move downward；Die profile 9 includes and other three limit in four limits of plate
The part that region is relative；
There are lower mold auxiliary holding pad 3 and lower mold cylinder 12, lower mold auxiliary holding pad 3 lower mold is internally installed
Four limits in position and plate in cavity edge region relative, and lower mold auxiliary holding pad 3 have and plate
Material the corresponding forming surface in cavity edge region, lower mold cylinder 12 can order about lower mold auxiliary holding pad 3 to
Upper motion；Main holding pad 4 includes the part relative with other three edge regions in four limits of plate；
The pressure that the pressure that upper mold cylinder 11 can provide can provide more than lower mold cylinder 12；In upper mold
When auxiliary holding pad 8 contacts with lower mold auxiliary holding pad 3, assist holding pad 8 by upper mold) order about lower mold
Auxiliary holding pad 3 moves downward.
It is internal that the lower mold auxiliary holding pad 3 that this programme provides is installed on die shoe 5, upper mold auxiliary holding pad
8 are installed on upper bolster 10 inside, and the two auxiliary holding pad all drives with nitrogen cylinder, upper mold auxiliary binder
The nitrogen cylinder pressure of plate 8 is more than the nitrogen cylinder pressure of lower mold auxiliary holding pad 3.This upper and lower mould auxiliary pressure
The effect of flitch plate has two: 1, allow the local of plate before starting pulling action first molding for mould
The deformation that local profile is consistent.2, plate is compressed, when plate flows to mold center direction, effect
The plate at above-mentioned position will not flow.
In order to optimize above-mentioned technical scheme further, this mould also includes the main holding pad being installed on lower mold
Cylinder 1 and auxiliary holding pad on 4 synchronize/force back body 2, and cylinder 1 can drive with lathe source of the gas
Dynamic, push main holding pad by synchronizing/force back body 2 in time at the suitable time points meeting press runs
Between 4 and upper mold auxiliary holding pad 8, its structure is referred to shown in Fig. 9.Synchronize/force back body
2 are installed on main holding pad 4, when mould is pressed onto the end, lathe source of the gas drive cylinder 1, will synchronize/
Force back body 2 to push between main holding pad 4 and upper mold auxiliary holding pad 8, complete stretching at mould
After action, during upper mold moves upward along with lathe slide block, drive the nitrogen of upper mold auxiliary holding pad 8
The power of cylinder is delivered on main holding pad 4 by synchronizing/force back body 2, thus ensure that main binder
Plate 4, die profile 9, upper and lower mould auxiliary holding pad is in synchronization action during mould is opened
State, it is to avoid certain assembly is because the asynchronous situation causing the tensioning member to scrap of action occurs.
As preferably, it is two that auxiliary holding pad synchronizes/force the quantity of back body 2, the most relatively sets
Putting the both sides at main holding pad 4, cylinder 1 is corresponding two.
In the specific embodiment that this programme provides, mould also includes that the pressure being installed on lower mold retracts hook
7, it is possible to auxiliary holding pad synchronizes/forces back body 2 by main holding pad 4 when lathe source of the gas lost efficacy
And retract between upper mold auxiliary holding pad 8, its structure is referred to shown in Figure 10.Below in conjunction with concrete work
The technological process of this programme drawing die is described further by process of making:
(1) before the drawing action of plate starts, three edge regions of main holding pad 4 and lower mold auxiliary binder
Plate 3 is pushed down plate together and makes plate produce the deformation of local；
(2) upper mold auxiliary holding pad 8 and lower mold auxiliary holding pad 3 reach relative static conditions, go up simultaneously
Plate shaping is gone out definite shape and coordinates nitrogen cylinder by mould auxiliary holding pad 8 and lower mold auxiliary holding pad 3
Pressure, assists lower mold the plate at holding pad 3 to compress and makes it not flow toward mold center direction again；
(3) upper mold continues to move downward, and plate is via three edge regions of main holding pad 4, in mould
Flow in heart direction；
(4), when mould reaches end state, the auxiliary holding pad on main holding pad 4 synchronizes/forces to return
Mechanism 2 makes upper mold and up/down mould auxiliary holding pad and main holding pad 4 separated in synchronization, until upper mold auxiliary pressure
Flitch 8 is kept completely separate with main holding pad 4.Avoid and make owing to upper and lower auxiliary binder moves asynchronous
The situation becoming drawn component deformation occurs.
In sum, the invention provides a kind of lifting stock utilization, ensure accessory size and outward appearance matter
Amount, the automobile dash board Lower extension Sheet Metal Forming Technology reducing the scrappage of process part processing in production process and mould
Tool.
Its key point is:
(1) after being changed by the docking mode of part, process part processing is semi-enclosed cavity structure, by common punching
The drawing work of casting die designs mould and is difficult to improve stock utilization.
(2) the material type of flow of drawing die is made into 3 limit chargings by 4 common limit chargings, normally
Mould structure is difficulty with.
(3) share one set of die and reduce pressuring machine (4 press become 3 to realize two kinds of vehicles
Platform press) and operator's quantity in the case of manufactured parts, need a whole set of Sheet Metal Forming Technology of part is carried out
Big change.
(4) on drawing die, two pieces of auxiliary holding pads are increased so that produce by the mode of 3 limit chargings
The purpose of drawn component is achieved, and reduces the scrappage of process part processing.
(5) use auxiliary holding pad to synchronize/force back body to solve due to two pieces of auxiliary holding pad works
The action inconsistent part deformation problem caused when making.
The advantage of this programme is:
(1) use new drawing die mould structure and die face technique, reduce process part processing in production process
Scrappage, and process part processing shape be unfavorable for stock utilization promote in the case of, it is achieved that promote material
Material utilization rate, guarantee accessory size and the purpose of presentation quality.
(2) compress the content of Sheet Metal Forming Technology, require minimizing lathe usage quantity and operator's quantity
In the case of, it is achieved one group of mould of the component sharing of two kinds of relevant vehicles produces.
After Sheet Metal Forming Technology change, the material use of certain vehicle front panel Lower extension (left/right) part existing
Rate can improve 9%, and the board dimension used also has the space reduced further；Drawing operation part
Scrappage is reduced to present less than 0.2% by original 4.5%；Machine for producing bed is subtracted by original 4
Few to 3, producers are reduced to 8 people by 10 original people；The qualification rate of part is by original unstable
80%～87% brought up to entirely reach more than 92%；Achieve two kinds of vehicles and use identical
Mould, punch line, personnel produce.
In this specification, each embodiment uses the mode gone forward one by one to describe, and each embodiment stresses
Being the difference with other embodiments, between each embodiment, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses
The present invention.Multiple amendment to these embodiments will be aobvious and easy for those skilled in the art
Seeing, generic principles defined herein can be in the situation without departing from the spirit or scope of the present invention
Under, realize in other embodiments.Therefore, the present invention is not intended to be limited to these realities shown in this article
Execute example, and be to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (9)
1. an automobile dash board Lower extension Sheet Metal Forming Technology, it is characterised in that include step:
S1, OP10 drawing die, including step:
S11, upper mold move downward, until being installed on the upper mold auxiliary holding pad that upper bolster (10) is internal
(8) contact plate；Now by upper mold auxiliary holding pad (8), it is installed on die shoe (5) inside
Lower mold auxiliary holding pad (3) the cavity edge region in four limits of plate is pushed down, be installed on lower mold
Internal lower mold cylinder (12) orders about lower mold auxiliary holding pad (3) upwards jack-up upper mold auxiliary holding pad
(8), subsequently into step S12；
S12, being installed on the upper mold cylinder (11) within upper mold, to order about upper mold auxiliary holding pad (8) downward
Motion, upper mold cylinder (11) pressure more than being installed on lower mold cylinder (12) pressure within lower mold, on
Mould cylinder (11) will be ordered about the upper mold auxiliary holding pad of upwards jack-up originally by lower mold cylinder (12)
(8) pressure, and make the plate of cavity edge areas adjacent deform upon, until the shape of this part plate
Becoming consistent with die face, auxiliary holding pad can be only achieved relative static conditions, subsequently into step up and down
S13；
S13, upper mold continue to move downward, and plate is by the die profile (9) of upper mold and the main binder of lower mold
Other three edge regions pushed down by plate (4), and along with upper mold continues to move downward, plate is to mold center direction
Flowing, the cavity edge region in plate is assisted holding pad (8) and lower mold auxiliary binder by upper mold simultaneously
Plate (3) compresses and will not flow；After mould reaches end state, enter step S14；
S14, upper mold auxiliary holding pad (8), die profile (9) and lower mold is made to assist holding pad
(3), main holding pad (4) separated in synchronization during mould is opened, until upper mold auxiliary holding pad
(8) finally it is kept completely separate, subsequently into step S2 with lower mold auxiliary holding pad (3)；
S2, OP20 edger: once cut out in most of sideline of part, only retains local the most earnestly
While to facilitate process part processing to transmit to subsequent processing, subsequently into step S3；
S3, OP30 piercing and flanging splitting die, including separation, punching, flange and shaping, subsequently into
Step S4；
S4, OP40 incised notch mouth die.
Automobile dash board Lower extension Sheet Metal Forming Technology the most according to claim 1, its feature exists
In, plate is isosceles trapezoid plate, and its long limit is cavity sides.
Automobile dash board Lower extension Sheet Metal Forming Technology the most according to claim 2, its feature exists
In, in step S14, the cylinder (1) being installed on the main holding pad (4) of lower mold will assist binder
Plate synchronize/force back body (2) push main holding pad (4) and upper mold auxiliary holding pad (8) it
Between, make upper mold auxiliary holding pad (8), die profile (9) and lower mold auxiliary holding pad (3), master
Holding pad (4) realizes separated in synchronization, until upper mold auxiliary holding pad (8) is final and lower mold auxiliary binder
Plate (3) is kept completely separate.
Automobile dash board Lower extension Sheet Metal Forming Technology the most according to claim 3, its feature exists
In, step S14 also includes: final and lower mold auxiliary holding pad (3) in upper mold auxiliary holding pad (8)
After being kept completely separate, auxiliary holding pad is synchronized/forces back body (2) by leading by the cylinder (1) of lower mold
Retract between holding pad (4) and upper mold auxiliary holding pad (8)；If cylinder (1) retracts inefficacy,
Pressure retracts hook (7) and auxiliary holding pad can synchronize/force back body (2) retracts original position.
Automobile dash board Lower extension Sheet Metal Forming Technology the most according to claim 4, its feature exists
In, the OP40 incised notch mouth die in step S4, put with the OP30 piercing and flanging splitting die in step S3
Use on same press.
6. an automobile dash board Lower extension diel, including upper die and lower die, its feature exists
In, there are upper mold auxiliary holding pad (8), die profile (9) and upper mold cylinder upper mold is internally installed
(11), the cavity edge region phase in four limits in position and plate of upper mold auxiliary holding pad (8)
Right, and upper mold auxiliary holding pad (8) there is the corresponding forming surface in cavity edge region with plate, on
Mould cylinder (11) can order about upper mold auxiliary holding pad (8) and move downward；Have lower mold is internally installed
Lower mold auxiliary holding pad (3), main holding pad (4) and lower mold cylinder (12), lower mold auxiliary holding pad
(3) the cavity edge region in four limits in position and plate is relative, and lower mold auxiliary holding pad (3)
Having the corresponding forming surface in cavity edge region with plate, it is auxiliary that lower mold cylinder (12) can order about lower mold
Pressing aid flitch (3) moves upward；
Upper mold cylinder (11) pressure is more than lower mold cylinder (12) pressure；
Main holding pad (4) and die profile (9) include and other the three edge regions phase in four limits of plate
To part.
Automobile dash board Lower extension diel the most according to claim 6, its feature exists
In, upper mold cylinder (11) and lower mold cylinder (12) are nitrogen cylinder.
Automobile dash board Lower extension diel the most according to claim 7, its feature exists
In, also include the cylinder (1) that is installed on the main holding pad (4) of lower mold and auxiliary holding pad synchronize/strong
Back body processed (2), cylinder (1) can drive with lathe source of the gas, is synchronized/forces by auxiliary holding pad
Back body (2) pushes main holding pad (4) and upper mold in time at the suitable time points meeting press runs
Between auxiliary holding pad (8).
Automobile dash board Lower extension diel the most according to claim 8, its feature exists
In, also include that the pressure being installed on lower mold retracts hook (7), it is possible to will auxiliary when lathe source of the gas lost efficacy
Holding pad synchronize/force back body (2) by main holding pad (4) and upper mold assist holding pad (8) it
Between retract.
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| CN201410466001.5A CN104438589B (en) | 2014-09-12 | 2014-09-12 | A kind of automobile dash board Lower extension Sheet Metal Forming Technology and mould |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410466001.5A CN104438589B (en) | 2014-09-12 | 2014-09-12 | A kind of automobile dash board Lower extension Sheet Metal Forming Technology and mould |
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| CN104438589B true CN104438589B (en) | 2016-09-14 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215172A (en) * | 2015-10-26 | 2016-01-06 | 重庆至信实业有限公司 | The handling of threshold internal plate connector Trimming Die and mounting structure |
| CN105537417A (en) * | 2015-12-11 | 2016-05-04 | 重庆大发天地机械制造工业有限公司 | Limiting lifting structure of blank holder mold of door sill inner plate connecting piece punching mold |
| CN106975687B (en) * | 2017-03-27 | 2018-06-22 | 泊头市兴达汽车模具制造有限公司 | A kind of inner plate of car door water cuts position drop platform crack resistence creping |
| CN108405709B (en) * | 2018-05-18 | 2019-05-28 | 莱州新亚通金属制造有限公司 | A kind of particular manufacturing craft and manufacturing process of manufacturing engineering vehicle connecting plate |
| CN111136164B (en) * | 2019-12-30 | 2021-04-16 | 北汽福田汽车股份有限公司 | Method and equipment for processing vehicle rear wall outer plate |
| CN112756454B (en) * | 2021-01-25 | 2022-03-15 | 奇瑞汽车股份有限公司 | Design method of common mode process of left side wall and right side wall of vehicle and common mode die |
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| CN204182789U (en) * | 2014-09-12 | 2015-03-04 | 柳州五菱汽车有限责任公司 | The diel of a kind of automobile dash board downward-extension part |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204182789U (en) * | 2014-09-12 | 2015-03-04 | 柳州五菱汽车有限责任公司 | The diel of a kind of automobile dash board downward-extension part |
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| CB02 | Change of applicant information |
Address after: 545007 Liuzhou Hexi Road, the Guangxi Zhuang Autonomous Region, No. 18 Applicant after: Guangxi company limited of automobile group Applicant after: Liuzhou Wuling Automobile Industry Co., Ltd. Address before: 545007 Liuzhou Hexi Road, the Guangxi Zhuang Autonomous Region, No. 18 Applicant before: Liuzhou Wuling Motors Co., Ltd. Applicant before: Liuzhou Wuling Automobile Industry Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: WULING AUTOMOBILE CO., LTD., LIUZHOU TO: GUANGXI PROVINCE AUTOMOBILE GROUP CO., LTD. |
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