CN103056212B - For sheet material hot forming and the mould of cutting and method - Google Patents

For sheet material hot forming and the mould of cutting and method Download PDF

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Publication number
CN103056212B
CN103056212B CN201210398641.8A CN201210398641A CN103056212B CN 103056212 B CN103056212 B CN 103056212B CN 201210398641 A CN201210398641 A CN 201210398641A CN 103056212 B CN103056212 B CN 103056212B
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CN
China
Prior art keywords
mould
sheet
slide block
separation
operative orientation
Prior art date
Application number
CN201210398641.8A
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Chinese (zh)
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CN103056212A (en
Inventor
G.鲁普
M.M.阿拉维
P.奥尔克斯
R.马利克
M.科特齐亚恩
Original Assignee
大众汽车有限公司
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Publication date
Priority to DE102011116714.9 priority Critical
Priority to DE102011116714A priority patent/DE102011116714A1/en
Application filed by 大众汽车有限公司 filed Critical 大众汽车有限公司
Publication of CN103056212A publication Critical patent/CN103056212A/en
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Publication of CN103056212B publication Critical patent/CN103056212B/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
    • B21D22/00Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02Stamping using rigid devices or tools
    • B21D22/022Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
    • 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
    • B21D24/00Special deep-drawing arrangements in, or in connection with, presses
    • B21D24/16Additional equipment in association with the tools, e.g. for shearing, for trimming
    • 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
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/24Perforating, i.e. punching holes
    • B21D28/32Perforating, i.e. punching holes in other articles of special shape
    • B21D28/325Perforating, i.e. punching holes in other articles of special shape using cam or wedge mechanisms, e.g. aerial cams
    • 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
    • B21D37/16Heating or cooling

Abstract

The present invention relates to a kind of for sheet material (400) being carried out the mould (100) of hot forming especially pressure quench, this mould has at least two can be along the mould part of operative orientation (A) relative movement, and heated sheet material (400) can be shaped by the pressure (F) applied along operative orientation (A) acts between the two mould part, described mould also has at least one separation equipment, can carry out lock out operation by this separation equipment on the sheet material (400) between described mould part.By present invention provide that, described separation equipment has at least one separation slide block (260) that can move transverse to operative orientation (A), can carry out lock out operation (C, D) by this separation slide block after sheet material (400) shapes in the section steeply extended relative to operative orientation (A).The invention still further relates to one can be upper that implements, for the method that sheet material is carried out hot forming especially pressure quench at described mould (100).

Description

For sheet material hot forming and the mould of cutting and method
Technical field
The present invention relates to a kind of mould for sheet material being carried out hot forming especially pressure quench, this mould Having at least two can be along the mould part of operative orientation relative movement, and heated sheet material can be By applying the pressure forming along operative orientation effect between said two mould part, described mould also has There is at least one separation equipment, can be at the sheet material between described mould part by this separation equipment On carry out lock out operation.The invention still further relates to a kind of can implement on described mould for sheet material is carried out The method of hot forming especially pressure quench.
Background technology
Hot forming is interpreted as sheet metal especially steel plate materials at this, and (preferably thickness of slab is at 0.5mm extremely Between 2.0mm) molding or shape correction, described process (may be up to hundreds of Celsius in recrystallization temperature Degree) carried out above.To this end, first sheet material to be formed is heated to relevant temperature, next become in heat Shape die for molding, holding shape or shape correction.Hot formed special flexible program is pressure quench. When pressure quench, the most heated sheet material (being particularly suitable for the steel plate materials of pressure quench) is in cooling Pressure quench die for molding, keep shape or shape correction and the coldest to a certain extent But, in order to improve its intensity and/or hardness the most targetedly.For hot forming especially pressure quench Various method flexible program well known in the art, this also will be explained below illustrating.
Hot forming especially pressure quench is mainly used in producing the automobile component for automobile making, because of For relatively light and that bigger load can be born plate forming part thus can be produced, such as reinforcement and Vehicle chassis component.
Additionally, by the mould for hot forming especially pressure quench known in the art and correlation method, Mechanical separation can also be implemented on the sheet material be positioned at mould by them to operate.Mechanical separation operation reason Solve as cutting sheet material by cutting knife, cutting edge etc..Prior art such as refers to DE 102006040224 A1。
But, simple lock out operation can only be implemented by known mould and method.In precipitous region Or in section (further below by specific definition), so far can only by workpiece or plate forming part from hot forming mould Carrying out lock out operation by separation laser again after taking out in tool or pressure quench mould, this is pretty troublesome and high Expensive.
Summary of the invention
Therefore, how be to point out can be simpler in precipitous section for the technical problem to be solved Realize lock out operation inexpensively.
This technical problem is used for carrying out sheet material hot forming especially pressure quench by the present invention by a kind of Mould and a kind of can by implement on the mould of the present invention for sheet material is carried out hot forming especially The method of pressure quench solves.Before or after elaboration be similarly applicable for the two master of the present invention Topic.
At least two are had by the mould being used for sheet material is carried out hot forming especially pressure quench of the present invention Individual mould part and preferably upper mold portion and Lower mold portion, the two mould part can edge Operative orientation relative movement, and heated sheet material can be by executing between said two mould part Add the pressure forming along operative orientation effect.Separate additionally, also there is at least one by the mould of the present invention Equipment, can carry out separating behaviour by this separation equipment on the sheet material between described mould part Making, by present invention provide that, described separation equipment has at least one can dividing transverse to operative orientation motion From slide block, can be after sheet material forming (especially when mould is still in closedown) by this separation slide block Lock out operation is carried out in the sheet material section steeply extended relative to operative orientation.
Especially it is also used for manufacturing hot formed especially pressure quench by the mould of the present invention, and is cut Limit and/or punching sheet material profiled member.
In terms of each method flexible program, the shaping of sheet material is interpreted as that molding, shape keep or shape correction. The sheet material steeply extended relative to operative orientation or workpiece section are interpreted as that (in a mold) is relative to work Direction or squeezing action direction are substantially with 0 ° to 60 °, and preferably 0 ° to 40 ° and especially about The section of the angle extension of 5 ° to 15 ° or region.In order to assess extension or orientation, need if desired to see Examine the mathematical compensation face of relevant portions.The applicant's it is experimentally confirmed that in traditional machine cuts (its Middle cut direction is roughly equivalent to operative orientation), for relative operative orientation with the angle of 40 ° to 90 ° The section extended can obtain good result, therefore need not the present invention such as in these sections and arranges Can be transverse to the separation slide block of operative orientation motion.
Separate slide block be interpreted as translatable motion and relative to mould or in mould the mould of relative movement Tool element, it has at least one cutter sweep (such as cutting edge, cutting knife, piercing punch etc.), wherein, It is arranged on the cutter sweep for implementing lock out operation separating on slide block with corresponding especially position admittedly Fixed cutter sweep acts on jointly, and this most also will be apparent from.By present invention provide that, separate slide block Can move transverse to operative orientation (or squeezing action direction).This is interpreted as, the direction of motion and therefore also Action direction or cut direction is had to favour or are perpendicular to operative orientation.Preferably specifying, the direction of motion is with logical The operative orientation being often vertical becomes the angle between 30 ° to 150 °.Particularly preferably specify, the direction of motion Especially cut direction (wherein the direction of motion and cut direction are typically identical) is perpendicular to should implement to separate The sheet material precipitous section or the most at a right angle of operation.
By deformation process can be performed in a driving stroke or extrusion stroke by the mould of the present invention And at least one precipitous section of sheet material or workpiece, carry out lock out operation at least one times.Advise at this Fixed, first make sheet material forming and following (namely when the shaping of sheet material is basically completed) implement once Or separating for several times operation.Lock out operation preferably leans on as closely as possible at described relatively-movable mould part Time near, when namely the pressure-ram at shaping extruder is positioned at its underpart stop (UT) and especially exist Perform time before pressure-ram will arrive its underpart stop (at former millimeters of UT), therefore work as extruding When push rod arrives its underpart stop, lock out operation completes.It is then preferred that regulation, the to be separated or sheet material of cutting (cutting member) at least in part and stays mould during lock out operation in the case of applying surface pressing Between the acting surface of part molding, especially until lock out operation is intactly implemented.
Preferably specify, before the relevant portions of sheet material cools down completely, carry out in by the mould of the present invention Lock out operation.This not only improves and forms the cutting force that facet is also beneficial to need to apply on cutting member (this cutting force reduces when sheet material temperature rises).In addition can be substantially reduced on cutting edge, cutting knife etc. Abrasion.
Can both have at least one traditional separation equipment by the mould of the present invention and also there is at least one Separation equipment with one or more movable (according to illustrate before) separation slide block.By the present invention Mould can be designed for manufacturing multiple plate forming part simultaneously.Additionally, it is permissible by the mould of the present invention It is designed for manufacturing localized heat and shapes the plate forming part of especially pressurized quenching.
By the mould of the present invention can produce thermal deformation especially pressure quench, in precipitous section have There is a plate forming part that at least one line of cut moves towards, and need not be this by plate forming part or workpiece from mould Tool takes out.Preferably specify, need the plate forming part manufactured in by the mould of the present invention final at it Outline aspect substantially completely and be the most circumferentially trimmed, and the most also rushed Hole, wherein, described punching may also comprise offers large-area groove.Therefore, by by the mould of the present invention Tool can be with low cost and expend to produce smaller and be particularly useful for the hot forming of automobile making and especially add The plate forming part of pressure quenching.
Preferably specifying, the design of at least one described mould part especially upper mold portion has at least one The individual mould sections for molding, this mould sections is resiliently supported at the substrate of this mould part directly or indirectly Upper and therefore can along operative orientation or be in reverse to operative orientation and move (such as motion 5mm to 15mm), Make described mould sections can after sheet material forming and when exceeding the pressure determined elastic yield, in order to Be achieved in said two mould part further towards (such as near aforesaid length, i.e. 5mm extremely 15mm), operate movable separation slide block the most passively and make it transverse to the side of operative orientation To mobile or sliding.
Mould sections for molding is interpreted as having the acting surface section directly contacted with sheet material to be formed Mould element.The mould sections of molding such as refer to die (if die is segment design, it is also possible to Only refer to a die section) or refer to that forming terrace die is (if forming terrace die is segment design, it is also possible to only Refer to a punch section).Can be incoming relevant by the plastic force produced by shaping extruder by resilient support In mould sections, wherein, described plastic force results in the surface pressing determined during forming process.? After forming process and when exceeding the extruding force determining or defining, relevant mould sections can keep With pressure applied oppositely elastic yield in the case of surface pressing, thus make by the pressurization of the present invention The mold component of quenching mould remains to further near mobile (several millimeters the most moved as described above), Touch immediately sending out the mechanically actuated separating slide block.This reference will also be given to accompanying drawing below and is expanded on further.Pass through The mould sections for molding that resilient support is relevant can also stop the power peak value that local occurs, thus avoids Defect and/or the mould of plate forming part are impaired.
At least one can be had for operating the pusher separating slide block passively by the mould of the present invention.Should Pusher combines so that the extruding force that is applied on mould by shaping extruder mechanically with separating slide block It is converted into the movement and cutting force pointed to transverse to operative orientation.This conversion such as can be by sliding each other Dynamic inclined-plane or carried out by linkage of tumbling.Relative to separating slide block, pusher is the most movingly It is arranged on another mould part especially Lower mold portion.Pusher such as can be solid regularly with position It is scheduled on the substrate of related die part.
The mould sections of described molding resilient support on the substrate of mould part can pass through at least one bullet Spring device realizes.This spring assembly can be such as mechanical spring, as torque spring, helical spring or Disc spring.But preferably specify, this spring assembly is air spring and especially nitrogen spring.This Plant air spring or nitrogen spring can have been bought as outsourcing piece.The advantage of air spring is such as that feature is bent Line is the most linearly.Mould sections can be at 5mm relative to maximum spring travel or the travel of substrate Between 15.0mm, especially between about 8.0mm to 10mm.Maximum spring travel can be at two Side limits upwardly through mechanical stop.
But can also preferably specify there is at least one for operating on one's own initiative by the mould of the present invention At least one separates the driving element of slide block.This driving element e.g. hydraulic cylinder etc., its such as by time Between control or stretching travel control ground activate and correspondingly can make pusher transverse to operative orientation move To implement lock out operation.Drive element and phase can be preferably provided at by the pusher of this driving element operation On same mould part.By the mould of the present invention can not only have for passive operation pusher device but also There is the device for active operation pusher, by the operable identical or different promotion of described device Device.Therefore two kinds of operation schemes can be combined with each other.
Preferably specifying, described movable separation slider designs is sheet material trimming for (in precipitous section) Or punching.Trimming is interpreted as making edge and processing additive and work with open or close line of cut trend Part separates.That is workpiece or sheet material the most fully trimming in terms of its final outline.To this end, Cutter sweep design has at least one corresponding cutting edge or corresponding cutting knife.Punching is interpreted as closing Line of cut move towards cut workpiece thus produce Internal periphery (punching, through hole, groove).To this end, cutting dress Put and be such as designed as piercing punch or drift.
It is then preferred that regulation, described movable separation slide block have default, be substantially perpendicular to described The direction of motion that precipitous section (should implement lock out operation in this section) extends.Therefore cut direction base Being perpendicular to sheet material on Ben, this such as in the dimensional stability of line of cut trend and/or (cuts at sheet material or workpiece Cutter member) the upper facet aspect that formed is favourable.
Particularly preferably specifying, the design of at least one described mould part has at least one on one's own initiative The chiller in cooling mould action face, in order to sheet material is carried out cold when hot forming especially pressure quench But.Chiller such as can be realized by a plurality of cooling duct, and cooling medium can flow through described cooling duct To reach to cool down the purpose in mould action face.Two mould parts (upper mold portion and lower mould portions Point) decision design has a chiller.Can specify that the whole area to mould action face carries out cold But but it also may only cool down local.
The line of cut preferably at least portion of the lock out operation for being implemented by described movable separation slide block Divide and extend in the precipitous section of non-active cooling.Therefore sheet material is trimmed in uncooled section, this It is all favourable at different aspect.This will be expanded on further below in reference to accompanying drawing.
By the present invention for sheet material carried out the method for hot forming especially pressure quench at least include with Lower step:
-provide by the mould of the present invention;
-heated sheet material is put in the mould opened;
-close described mould and make sheet material forming;And
-next the most and then at least one section steeply extended relative to operative orientation Middle enforcement lock out operation at least one times.
In the present inventive method extension design and design by before and after can be suitable for similarly Draw in elaboration in the present inventive method.
Accompanying drawing explanation
Other features and advantages of the present invention are drawn by accompanying drawing and the following description and are not limited to this.Attached Feature that is shown in figure and/or that be set forth below and shown or described feature compound mode are independently same Time be also the public characteristic of the present invention.In the accompanying drawings:
Fig. 1 illustrates the open mode by the mould of the present invention with schematic sectional;
Fig. 2 illustrates the situation when implementing lock out operation of the mould in Fig. 1 with schematic sectional;
Fig. 3 with schematic sectional illustrate another by the mould of the present invention implement lock out operation time feelings Shape.
Detailed description of the invention
Fig. 1 illustrate by the present invention for pressure quench sheet material with for manufacturing the plate forming part of quenching Mould 100.Shown mould 100 is pressure quench mould.By the hot-forming die of the present invention substantially Can construct in the same manner.
Mould or pressure quench mould 100 include top the first mould part (upper die) 200 and under Second mould part (lower mould) 300 in portion.According to view, mould 100 is in open mode.In order to Closing mould 100, upper mold portion 200 can continue to use operative orientation that A represents relative to lower die Tool part 300 moves.The generation of movement and extruding force to be applied through (unshowned) shaping extruder real Existing, mould 100 is arranged in this shaping extruder.
Upper mold portion 200 has upper substrate 210, and it is provided with to suspension with complicated molding The die 220 in mould action face 222.The mould action face 222 of die side includes multiple being provided for into The sharp regions (being the region on left side and right side according to view) of the precipitous section of shape.Mould action face 222 Sharp regions about to become angle y of 15 ° to extend relative to operative orientation A, and this is in sharp regions, right side In be shown in broken lines.Oblique line represents the complementary area of relevant range at this.A plurality of cooling duct is represented with 230, The described cooling duct medium that is cooled flows through to be actively cooled the mould action face 222 of die side.
Die 220 is entirely through multiple air springs 240 (especially nitrogen spring) directly or the most also Indirectly it is supported in upper substrate 210, and by compression or extruding air spring 240 and work side The most back moving to A, this also will be explained below illustrating.In order to limit die 220 at inflation bullet Movement travel when spring 240 compresses, arranges simple spacer element 250 alternatively.Pass through air spring Quantity, configured and disposed can the regulation of 240 act on the bullet on die 220 when being formed at pressure quench Spring force and the surface pressing reached relative to sheet material needs to be formed and to be quenched.
Lower mold portion 300 has lower basal plate 310, with the mould action face 322 for molding Forming terrace die 320 be erected to and be immovably arranged in lower basal plate.The mould of punch side is made Design accordingly with the mould action face 222 of die side with face 322 and correspondingly as include multiple suddenly High and steep region.Represent that a plurality of cooling duct, the described cooling duct medium that is cooled flows through with on one's own initiative with 330 The mould action face 322 of cooling punch side.Lower mold portion 300 can also have unshowned equally Can have fixture or the plate holder of cooling duct.
Mould 100 also include two be mutually symmetrical design for be positioned at mould part 200 and 300 it Between sheet material or workpiece on implement the separation equipment of lock out operation.Mould 100 can also only have one point From equipment or the identical or different separation equipment of design with more than two.Separation equipment includes respectively It is movably disposed on upper mold portion 200 and can slide transverse to the separation of operative orientation A motion Block 260.Separate slide block 260 relative to upper mold portion 200 and transverse to the water of operative orientation A Flat mobility direction arrow C represents.Movably separate be respectively arranged with on slide block 260 with The cutter sweep 270 of design cutting edge 271 thereon, this cutting edge 271 is in a way known The cutting edge 371 corresponding with two on forming terrace die 320 acts on implementing cutting process jointly.With The cutter sweep 270 of design cutting edge 271 thereon and be arranged on cutting edge on forming terrace die 320 371 all can be designed as removable abrasive element.
Movable separation slide block 260 has inclined-plane in its side design pointed to away from upper substrate 210 261.In order to operate movable separation slide block 260, Lower mold portion 300 include two pushers or Pusher brake shoe 360, they are non-removably secured in lower basal plate 310 and at it away from bottom On the side that substrate 310 points to, same design has inclined-plane 361.Move at mould part 200 and 300 Time close, inclined-plane 261 in opposite directions can relative slide with 361, the most movable separation slide block 260 Operated the most passively and pushed away transverse to operative orientation A towards the direction of forming terrace die 320 Move (seeing Motion arrow C).
The slide plate or similar structures being fixed on the inclined-plane 361 of pusher 360 or side is represented with 380. This slide plate can also be fixed on movable separation slide block 260.By corresponding inclined-plane 261 and 361 Structure, can set out the most in advance separate slide block 260 motion and spendable cutting force between Transformational relation.Device for making separation slide block 260 reset is not shown.Reset and such as can pass through spring element Part (such as air spring) is carried out.The shown setting separating slide block 260 and pusher 360 can also be exchanged, That is separate slide block can be arranged on Lower mold portion, and pusher is arranged on upper die In part.
In order to manufacture quenching and the plate forming part being trimmed, the plate forming part before heated is especially Position is placed in the mould 100 opened exactly.Sheet material is typically to be suitable to the steel plate materials of pressure quench, It had been heated to the temperature higher than 900 DEG C before putting into mould 100.First method modification side Case (direct weighting quenching) specifies, puts in mould 100 by the sheet material that form is flat blank, then mould 100 There is the function of molding.Second method flexible program (indirect weighting quenching) specifies, mould put into by sheet material Be the most preformed plate forming part or intermediary form part time in tool 100, then mould 100 can have Molding, shape keep or the function of shape correction.
After putting into sheet material that is to be formed, to be quenched and that treat trimming, mould 100 is closed, upper die Part 200 moves along operative orientation A for this.This motion is produced by shaping extruder.Passing through top During mould part 200 closes mould 100 along the movement of operative orientation A, for making sheet material 400 molding Required power imports upper substrate 210 from the pressure punch of shaping extruder, and by filling at this Air spring 240 is transferred to die 220.In this stage, air spring 240 is for transfer molding power also And the power peak value being likely to occur is weakened at this.
Fig. 2 illustrates the situation that mould 100 is closed.Sheet material 400 is positioned at die 220 and shapes Between punch 320, this sheet material profile corresponding to punch and die when mould 100 is closed is configured to work Part.Workpiece or sheet material 400 with whole area or are likely to only abut in mould action face with area On 222 and 322, thus cooling down sheet material 400 rapidly, this makes according to known metallurgical mechanism The hardness of sheet material 400 or intensity raise.
In the view shown in Fig. 2, die 220 be positioned at its underpart final position and can not be again along work Make direction A to move further.In this stage, air spring 240 is used for keeping mould action face 222 And between 322 and sheet material 400 for cooling and quenching sheets 400 needed for surface pressing, wherein, for This required pressure is applied by shaping extruder unchangeably, and this is by pointing to the power arrow of upper substrate 210 F illustrates.
When die 220 enters final position, its underpart after sheet material 400 shapes as previously mentioned, extruding Drift not yet arrives its underpart stop (UT), but can also be along operative orientation together with upper substrate 210 A moves several millimeters.This makes the pressure within air spring 240 increase relevantly with stroke.When filling Exceed predetermined in air spring 240 or by design or when arranging the pressure of definition, air spring can To be compressed or to be extruded.Thus, die 220 can be elastic with the ground in opposite direction of pressure applied F Make a concession, till encountering optional distancing element 250 at least up to this die.By compression or extruding inflation Spring 240, mould part 200 and 300 can be further towards movement (or upper mold portion 200 Can move along operative orientation A portion's mould part 300 further downward), wherein, mould part 200 With 300 this further also carried out by shaping extruder near mobile.
Mould part 200 with 300 further towards the mobile compression similar along with air spring 240. By this compression of air spring 240, die 220 can elastic yield continuously.This elasticity is moved back Allow and can be understood as position own and be securely maintained at the die 220 of final position, bottom in upper die portion Dividing the yielding within 200, wherein, die 220 moves to upper substrate 210 to a certain extent, as As illustrating with Motion arrow B.But more precisely upper substrate 210 is to fixing die 220 motions.In this stage, air spring 240 makes in mould action face 222 and 322 and sheet material The surface pressing of definition is kept between 400.
The latest at mould part 200 and 300 further towards (wherein mould part 200 and 300 time mobile This further first pass through compression or the extruding of air spring 240 near mobile and cause therewith Die 220 can be fixed in upper substrate 210 elastic yield realize), movable separate sliding The inclined-plane 261 on pusher 360 that block 260 is fixing with position contacts with 361 plane earths and thus may be used To slide over each other.Here, movable separation slide block 260 is operated and court the most passively The direction of forming terrace die 320 elapses transverse to operative orientation A so that the cutter sweep being disposed thereon 270 can implement lock out operation in the precipitous section of workpiece or sheet material 400, wherein, are positioned at correspondence Sheet material 400 between cutting edge 271 and 371 is cut off.Required cutting force is by inclined-plane 261 and 361 On mechanical conversion produced by pressure F.
The horizontal translocation motion C separating slide block 260 can be in the range of 1mm to 20mm, preferably In the range of 2mm to 15mm, and especially (the most also give in the range of 2mm to 10mm Position and cutting tolerance are gone out).This horizontal translocation motion C separating slide block 260 generally moves with vertical Fold adds, described in vertically move and be equivalent to upper mold portion 200 and enter one at mould part 200 and 300 Walk the movement along operative orientation A when mobile.Therefore define finally for separation slide block 260 and continue to use The synthesis of the direction of motion that Motion arrow D represents is moved.By the direction of motion that design structure is prespecified D is substantially perpendicular to need the precipitous section implementing lock out operation to extend.The direction of motion such as can be passed through Guide element is prespecified, can also be favourable in terms of the support in cutting process of this guide element 's.
Lock out operation refers to as workpiece trimming to produce the outline of definition.Outside edges of boards waste material part is used 401 are represented and just can be fallen downwards by action of gravity after resetting separating slide block 260 when necessary Fall, wherein, it is also possible to other is set for the probability removing the hottest edges of boards waste material part 401. Prespecified, edges of boards waste material part 401 is not clamped when cutting.
Line of cut trend that is open or that be also likely to be closing is positioned at the mould action face 222 of active cooling Outside 322, and the district less or not being cooled in molding before therefore in sheet material 400 In section, therefore do not have in these sections (when cutting process) or the most small extent carried out quenching (its Middle hardness is gradually reduced between quenching and unhardened section).The most this probability, I.e. sheet material 400 can when the hottest (such as between 600 DEG C to 700 DEG C and especially about 650 DEG C) it is trimmed, this is needing formation and/or the cutting edge of facet on the cutting force of applying, workpiece Abrasion aspect on 271 and 371 is all favourable.As from shown in Fig. 2 it can be seen that line of cut is permissible Mould action face 222 and 322 extension that next-door neighbour is cooled.Such advantage is, during lock out operation Or it is very well solid from side by the clamping between mould action face 222 and 322 in cutting process Determine sheet material 400.This has the advantage that and also resides in, line of cut can be set very accurately quenching and not Between the section of quenching or be arranged on cooling and between uncooled section.
But lock out operation may also mean that punching, move towards at workpiece or sheet material for the line of cut to close Offering boring or hole, through hole or groove in the precipitous section of 400, elaboration before can be similarly applicable for This.
After sheet material 400 cools down (being such as brought down below 200 DEG C), this is by within the retention time of definition Maintaining pressure F to carry out (also for terminating quenching), pressure-ram is that this is maintained under it the most in short time At portion's stop, mould 100 can by upper mold portion 200 be in reverse to operative orientation D movement and Open.In opening stroke, the air spring 240 flicked still guarantees to maintain on the shift motion determined Surface pressing, this such as may be used for cooling down sheet material 400.Then can by quenching and be trimmed and/ Or the sheet material being the most also punched takes out.The plate forming part made is e.g. for the car of body of a motor car Kerve, the structure of this kerve determines it and has precipitous section.
The mould 100 illustrated in fig. 1 and 2 also can be configured differently.Such as die and forming terrace die Can exchange relative to the layout of upper mold portion and Lower mold portion.Forming terrace die can be set equally It is calculated as flexibility, is namely elastically supported at the forming terrace die on substrate.In addition can set separating slide block Put on Lower mold portion and/or pusher is arranged on upper mold portion etc..
Fig. 3 illustrates that another is by the mould 100a of the present invention.The parts that identical or function is identical are used and Fig. 1 The reference identical with in Fig. 2 represents, simply with the addition of letter " a ".
In mould 100a, only cutter sweep 270a is designed as slide block, in order to implement lock out operation, Described slide block can be operated and transverse to work on one's own initiative by fixing driving element 290a (such as hydraulic cylinder) Make direction D motion.Hydraulic cylinder 290a is fixed in Immobile bearing 265a, and this bearing may be provided at In upper substrate 210a or lower basal plate 310a.Activation to hydraulic cylinder 290a such as can control the time Ground and/or Stroke Control ground are carried out, and can arrange corresponding for detecting stretching in mould 100a for this The sensor of stroke.Other side be suitable for similarly before explaining the mould 100 shown in Fig. 1 and Fig. 2 State.
The mould program being exemplarily illustrated and illustrating can also be combined with each other.The most such as shown in Fig. 3 Hydraulic cylinder 290a is desirably integrated in the slide block 260 shown in Fig. 1 and Fig. 2, in order to it is possible to cutting Cut and on device 270, produce bigger regulation campaign and/or cutting force.
List of numerals
100 moulds (pressure quench mould)
200 upper mold portion (mold)
210 upper substrate
220 dies
The mould action face of 222 die sides
230 chillers (cooling duct)
240 air springs
250 spacer elements
260 separate slide block
261 inclined-planes (sliding surface)
265 bearings
270 cutter sweeps
271 cutting edges
290 drive element (hydraulic cylinder)
300 Lower mold portion (lower mold)
310 lower basal plate
320 forming terrace dies
The mould action face of 322 punch sides
330 chillers (cooling duct)
360 pushers (pusher brake shoe)
361 inclined-planes (sliding surface)
371 cutting edges
380 slide plates
400 sheet materials (workpiece)
401 edges of boards waste material parts (waste material part)
A operative orientation
B (die) yielding campaign
C separates the horizontal movement of slide block
D separates the resultant motion of slide block
F pressure
Y angle

Claims (8)

1., for the method to sheet material (400) pressure quench, wherein, hold in an extrusion stroke Row deformation process and at least one times lock out operation, it is characterised in that following steps:
-a kind of mould (100) being arranged in shaping extruder is provided, having at least two can be along work The mould part (200,300) of direction (A) relative movement, and heated sheet material (400) can be described Being shaped by the pressure (F) applied along operative orientation (A) acts between two mould parts, described mould is also There is at least one separation equipment, described mould part (200,300) can be positioned at by this separation equipment Between sheet material (400) on carry out lock out operation, wherein, described separation equipment has at least one can be horizontal To the separation slide block (260) moved in operative orientation (A), can be become at sheet material (400) by this separation slide block In the section steeply extended relative to operative orientation (A), lock out operation is carried out after shape, and, its In at least one described mould part (200;300) design has at least one for being actively cooled mould Acting surface (222;322) chiller (230;330), but for can being moved by described Separate the line of cut precipitous section at least partially in non-active cooling of the lock out operation that slide block (260) is implemented Interior extension,
-heated sheet material (400) is put in the mould (100) opened, and wherein, described sheet material (400) The temperature higher than 900 DEG C was had been heated to before putting into mould (100),
-close described mould (100) and make described sheet material (400) shape, wherein, described sheet material (400) Abut on mould action face (222,322), and thus described sheet material (400) cooled down rapidly, This can cause the hardening of described sheet material (400), and
-next at least one section steeply extended relative to operative orientation (A) by separation Equipment implements lock out operation at least one times, is used for producing the outline of definition, and wherein, line of cut moves towards position Outside the mould action face (222,322) of active cooling, said sheet material (400) is in molding before In less or be not cooled, and therefore do not have or be the most small extent hardened, and wherein, institute State sheet material (400) to be trimmed when the hottest between 600 DEG C to 700 DEG C, and wherein, The separation slide block (260) that can move is respectively arranged with the cutting edge (271) designed thereon Cutter sweep (270), described cutting edge (271) and two corresponding cutting edges on forming terrace die (320) (371) jointly act on to implement cutting process.
2. one kind according to claim 1 method for mould to sheet material (400) pressure quench (100), this mould have at least two can along operative orientation (A) relative movement mould part (200, 300), and heated sheet material (400) can between said two mould part by apply along work The pressure (F) that direction (A) acts on shapes, and described mould also has at least one separation equipment, by this point Can carry out separating behaviour on the sheet material (400) being positioned between described mould part (200,300) from equipment Make, it is characterised in that described separation equipment has at least one and can move transverse to operative orientation (A) Separation slide block (260), by this separation slide block can sheet material (400) shape after relative to work The section that direction (A) steeply extends carries out lock out operation, and, mould described at least one of which Partly (200;300) design has at least one for being actively cooled mould action face (222;322) Chiller (230;330), but for being implemented by the described separation slide block (260) that can move The line of cut of lock out operation is at least partially in being close to cooled mould in the precipitous section of non-active cooling Acting surface (222,322) extend, wherein, the separation slide block (260) that can move is respectively arranged with The cutter sweep (270) of design cutting edge (271) thereon, described cutting edge (271) and forming terrace die (320) two corresponding cutting edges (371) on act on jointly to implement cutting process.
3. the mould (100) as described in claim 2, it is characterised in that at least one described mold (200) design is divided to have at least one mould sections (220) for molding, the so elastic twelve Earthly Branches of this mould sections Support is on the substrate (210) of this mould part (200) so that described mould sections can shape at sheet material (400) Rear and when exceeding pressure (F) determined elastic yield, in order to be achieved in said two mould part (200,300) further towards, the separation slide block (260) that can move of operation and making the most passively It is transverse to direction (C, D) sliding of operative orientation (A).
4. the mould (100) as described in claim 3, it is characterised in that described mould (100) have to A few pusher being used for operating described separation slide block (260) passively.
5. the mould (100) as described in claim 3 or 4, it is characterised in that described mould (100) has There is at least one for the described mould sections (220) being used for molding is elastically supported at described substrate (210) On spring assembly (240).
6. the mould (100a) as described in claim 2, it is characterised in that described mould (100a) has At least one is for operating the driving element (290a) of described separation slide block (270a) on one's own initiative.
7. by the mould (100) one of claim 2 to 4 described, it is characterised in that described can transport Dynamic separation slide block (260) is designed for as sheet material (400) trimming or punching.
8. by the mould (100) one of claim 2 to 4 described, it is characterised in that described can transport Dynamic separation slide block (260) has default, to be substantially perpendicular to described precipitous section extension motion side To (D).
CN201210398641.8A 2011-10-22 2012-10-19 For sheet material hot forming and the mould of cutting and method CN103056212B (en)

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DE102011116714.9 2011-10-22
DE102011116714A DE102011116714A1 (en) 2011-10-22 2011-10-22 Tool and method for thermoforming and cutting, in particular for press hardening and cutting, of a sheet metal material

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