CN108043959A - A kind of thermal forming device - Google Patents

A kind of thermal forming device Download PDF

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Publication number
CN108043959A
CN108043959A CN201711091591.8A CN201711091591A CN108043959A CN 108043959 A CN108043959 A CN 108043959A CN 201711091591 A CN201711091591 A CN 201711091591A CN 108043959 A CN108043959 A CN 108043959A
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CN
China
Prior art keywords
mold
insert
die
mould
connector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711091591.8A
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Chinese (zh)
Inventor
卢磊
王健
江克洪
郝勤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
Original Assignee
Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Geely Holding Group Co Ltd, Zhejiang Geely Automobile Research Institute Co Ltd filed Critical Zhejiang Geely Holding Group Co Ltd
Priority to CN201711091591.8A priority Critical patent/CN108043959A/en
Publication of CN108043959A publication Critical patent/CN108043959A/en
Pending legal-status Critical Current

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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
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/10Die sets; Pillar guides
    • 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 field of machining, more particularly to a kind of thermal forming device.The device includes first substrate, second substrate and the multiple molds being arranged between first substrate and second substrate, each mold includes the upper die and lower die to cooperate, upper mold includes upper mold seat and upper mold body, lower die includes die holder and lower mould body, upper mold seat is installed on the first substrate, the top of upper mold body is connected with upper mold seat, die holder is mounted on second substrate, the bottom of lower mould body is connected with die holder, and the die cavity for accommodating workpiece is formed between the top of the bottom of upper mold body and lower mould body;Upper mold body or lower mould body have movable part, and movable part makes the surface of the die cavity of each mold in device reach unanimity with the contact between the surface of corresponding workpiece for changing the size of die cavity.The present invention can improve while process the production efficiency and product yield of more than one piece workpiece.

Description

A kind of thermal forming device
Technical field
The present invention relates to field of machining, more particularly to a kind of thermal forming device.
Background technology
Mold, in industrial production being molded, being blow molded, squeezing out, die casting or the methods of forging forming, smelting, punching press obtain The various moulds and instrument of required product.In brief, mold is the instrument for formed article, and this instrument is by various parts It forms, different molds is made of different parts, it mainly realizes article by the change of institute's moulding material physical state The processing of shape.
The hot-forming die that current major drop stamping parts supplier uses all is that more tablets produce, under normal circumstances Using a multi-cavity mold or the form of multimode joint installation.The structure of the hot-forming die of a multi-cavity mold is as shown in Figure 1, multimode joins The structure for closing the hot-forming die of installation is as shown in Figure 2.
Influence of the gap to product production efficiency between hot stamping forming die convex mould and cavity plate is far above cold stamping Mold.Quenching is the most important ring of hot forming, is both to determine the most critical point of hot forming efficiency and determining for hot forming success or failure Qualitatively point!Heat transfer coefficient during quenching is influenced by footprint pressure, shown in Figure 3, and the bigger heat transfer coefficient of pressure is more Greatly, the smaller heat transfer coefficient of pressure is smaller, while contact is less than after 0pa, heat transfer coefficient can with tablet and mold it Between gap increase and further reduce.
In hot stamping operation, the thickness of plate is not definitely consistent, can there is the tolerance of ± 0.05mm, this tolerance meeting Bring following result:Material thickness using tablet A and tablet D be negative common difference lower limit as -0.05mm, tablet B and tablet C material thickness are positive public Difference is reached the standard grade as exemplified by+0.05mm, this deviation belongs to qualified plate in the margin of tolerance.And the influence band of this deviation Come the result is that:When tablet B and tablet C are contacted in die cavity with punch-die, tablet A and tablet D in die cavity with it is recessed The gap of mould is 0.1mm.This is influenced greatly for hot forming efficiency, and as shown in the graph of above-mentioned Fig. 3, this gap causes plate The poor several times of material and the coefficient of heat conduction of die cavity, this also brings a series of problem.
Simultaneously for the size of short transverse of mold of joint installation, there is also tolerances.And this tolerance can compare plate Expect thickness deviation bigger, also result in and be not exclusively bonded between plate and die cavity.
In Fig. 4, theoretically four molds share the power of forcing press jointly, but due to the influence of tolerance, walk plus tolerance Plate is just become by the pressure that mold applies than theoretical value bigger, and walk between the plate of negative common difference and mold to exist it is certain between Gap, it is that the cooling rate for the plate for walking plus tolerance is the cooling rate for the plate for walking negative common difference that this result was brought, which directly affects, Several times, and then bring following problem:
1st, production efficiency is limited, and productive temp is limited by the cooling time for the most slow plate that cools down.
2nd, yields is low, and the slow part of plate cooling rate is bound to cause the incomplete conversion of martensite, so that part Integral strength is uneven, influences the tensile strength of part.
3rd, part punch insert damages, and when the most slow plate that cools down can meet the strength condition demoulding, cooling is fast Plate due to temperature it is relatively low, occur thermal expansion, meeting " tightly " holding punch-pin, hold very much for the hot forming steel plate of 1500MPa Punch insert is easily pulled out into trace damage mold, shortens die life.Damage needs replacing insert to a certain extent, causes Manufacturing cost rises.
As seen from the above analysis, for existing hot stamping forming die there are many defects, there is an urgent need for carry out structure optimization to it.
The content of the invention
For the above problem of the prior art, can make positioned at each die cavity it is an object of the present invention to provide a kind of The hot forming tool that plate is fitted closely with mold cavity can improve production efficiency and product yield.
To solve the above-mentioned problems, a kind of thermal forming device of the invention, including first substrate, second substrate and setting Multiple molds between the first substrate and second substrate,
Each mold includes the upper die and lower die to cooperate, and the upper mold includes upper mold seat and upper mold body, under described Mould includes die holder and lower mould body, and the upper mold seat is mounted on the first substrate, the top of the upper mold body and institute It states upper mold seat to be connected, the die holder is mounted on the second substrate, the bottom of the lower mould body and the die holder phase Even, the die cavity for accommodating workpiece is formed between the bottom of the upper mold body and the top of the lower mould body;
The upper mold body or lower mould body have movable part, and the movable part is big for changing the die cavity It is small, the surface of the die cavity of each mold in described device is made to reach unanimity with the contact between the surface of corresponding workpiece.
Preferably, the upper mold body is fixedly connected with the upper mold seat, and the lower mould body has movable part;
The upper mold body is cavity plate, and upper mold body includes the second insert and material pressing core, and the material pressing core is mounted on described On upper mold seat, second insert is located at the outside of the material pressing core, and second insert is fixed with the upper mold seat, the pressure Expect that the bottom surface of core is higher than the bottom surface of second insert;
The lower mould body is punch-pin, and lower mould body includes blank holder, the first connector and the first insert, first edge Block is the movable part, and the blank holder is located at the outside of first insert, the top surface of the blank holder and the binder The bottom surface of core is opposite, and the blank holder is fixedly connected with the die holder, top surface and the material pressing core of first insert Bottom surface is opposite, and first insert is connected by first connector with the die holder, and first connector can be First insert provides the floating liftout power towards the material pressing core.
Preferably, the die holder has the first supporting item, and first supporting item is located at the outer of first connector Side, the blank holder are connected by first supporting item with the die holder;First connector is hydraulic cylinder, described the The lower end of one insert is connected with the piston rod of the hydraulic cylinder, and the cylinder body of the hydraulic cylinder is connected with the die holder.
Preferably, the lower die further includes lower die guide part, the lower die guide part be arranged on the die holder with it is described Between blank holder, and positioned at the outside of first supporting item;The upper mold further includes upper mold guide part, the upper mold guide part It is arranged between the upper mold seat and the blank holder, and positioned at the outside of second insert.
Preferably, it is additionally provided with the first guide plate between the inner wall of the outer wall of first insert and first supporting item.
Preferably, the lower mould body is fixedly connected with the die holder, and the upper mold body has movable part;
The lower mould body is punch-pin, and lower mould body includes the 4th insert, and the 4th insert is fixed with the die holder, The top surface of 4th insert has protrusion;
The upper mold body is cavity plate, and upper mold body includes the 5th insert and the second connector, and the 5th insert is institute State movable part, the 5th insert is connected by second connector with the upper mold seat, the 5th insert with it is described 4th insert is opposite, and the bottom surface of the 5th insert has the concave architecture with the 4th insert cooperation, second connection Part can provide the floating liftout power towards the 4th insert for the 5th insert.
Preferably, second connector is hydraulic cylinder, the upper end of the 5th insert and the piston rod of the hydraulic cylinder It is connected, the cylinder body of the hydraulic cylinder is connected with the upper mold seat.
Preferably, the upper mold seat has the storage tank in concave shape, and second connector is fixed on described accommodating In slot, the periphery of the 5th insert is equipped with boss, and the boss is contained in the storage tank.
Preferably, the upper mold body further includes limiting plate, and one end of the limiting plate is connected with the edge of storage tank, limit The other end part shelter of position plate states the opening of storage tank, and the boss of the 5th insert is located at the top of the limiting plate, The limiting plate, which can be held in the palm, carries the boss so as to prevent the 5th insert from departing from the storage tank.
Preferably, the upper mold body further includes the second guide plate, second guide plate be located at the inner wall of the storage tank with Between the outer wall of 5th insert.
A kind of thermal forming device of the present invention, has the advantages that:
The present invention is mold design movable part, by movable part come the adjustment mould according to workpiece material adaptability The size of chamber, the contact between workpiece surface and mold to be made to reach unanimity, so as to eliminate various tolerances and product The deviation that tired tolerance range is come so that the cooling velocity of different plates reaches unanimity from root, makes workpiece that multi-cavity generates can be with It cools down under the same conditions, reaches optimal production efficiency.Further, since workpiece cooling velocity reaches unanimity, it can be ensured that shape Into complete martensite, it is ensured that workpiece each several part has consistent tensile strength, improves product yield.
The design of movable part of the present invention so that mold can adapt to different press.It avoids simultaneously because of cooldown rate Difference causes thermal expansion, makes in workpiece insertion punch-pin, and the effect for extending die life is played in the thus damage caused by insert Fruit.
Description of the drawings
It, below will be to required in embodiment or description of the prior art in order to illustrate more clearly of technical scheme The attached drawing used is briefly described.It should be evident that the accompanying drawings in the following description is only some embodiments of the present invention, it is right For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings Its attached drawing.
Fig. 1 is the structure diagram of the thermal forming device of existing a multi-cavity mold;
Fig. 2 is the structure diagram of the thermal forming device of existing multimode joint installation;
Fig. 3 is the relational graph of hot forming efficiency affecting factors and heat transfer coefficient;
Fig. 4 is the schematic diagram using existing thermal forming device processing part;
Fig. 5 is the structure diagram for the thermal forming device that the embodiment of the present invention one provides;
Fig. 6 is the structure diagram for the hot-forming die that the embodiment of the present invention one provides;
Fig. 7 is the structure diagram for the thermal forming device that the embodiment of the present invention two provides;
Fig. 8 is the structure diagram for the hot-forming die that the embodiment of the present invention two provides.
In figure:1- first substrates, 2- molds, 3- second substrates, 21- upper molds, 22- workpiece, 23- lower dies, 211- upper mold seats, 213- material pressing cores, 214- upper mold guide parts, the second inserts of 215-, 231- die holders, the first connectors of 232-, 233- first are inlayed Block, 234- lower die guide parts, the first guide plates of 235-, 236- blank holders, the 5th inserts of 216-, the second connectors of 217-, 218- Two guide parts, 219- limiting plates, the 4th inserts of 238-.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art obtained on the premise of creative work is not made it is all its His embodiment, belongs to the scope of protection of the invention.
Embodiment one
The present embodiment provides a kind of thermal forming device, as shown in figure 5, the device 2 include first substrate 1, second substrate 3 with And it is arranged on multiple molds 2 between the first substrate 1 and second substrate 3.Fig. 6 is referred to, each mold 2 includes phase interworking The upper mold 21 of conjunction and lower die 23, the upper mold 21 include upper mold seat 211 and upper mold body, and the lower die 23 includes die holder 231 With lower mould body, the upper mold seat 211 is mounted on the first substrate 1, top and the upper mold of 21 body of upper mold Seat 211 is connected, and the die holder 231 is mounted on the second substrate 3, bottom and the die holder of the lower mould body 231 are connected, and the die cavity for accommodating workpiece 22 is formed between the top of 23 body of bottom and the lower die of 21 body of upper mold;Institute It states upper mold body to be fixedly connected with the upper mold seat 211, the lower mould body has movable part, and the movable part is used to change Become the size of the die cavity, make the contact between the surface of the die cavity of each mold and the surface of corresponding workpiece in described device Pressure reaches unanimity.
In the present embodiment, the upper mold body is cavity plate, and the lower mould body is punch-pin.
Specifically, upper mold body includes the second insert 215 and material pressing core 213, the material pressing core is mounted on the upper mold seat On, second insert 215 is located at the outside of the material pressing core 213, and second insert 215 is fixed with the upper mold seat 211, The bottom surface of the material pressing core 213 is higher than the bottom surface of second insert.As a preferred embodiment, the material pressing core Elastic element can be set between 213 and upper mold seat, and elastic element for example can be nitrogen gas spring, to allow material pressing core opposite Upper mold seat moves, and material pressing core can contact workpiece material prior to the second insert 215, the setting of elastic element can make material pressing core with The surface of workpiece material fits closely.
Lower mould body includes blank holder 236, the first connector 232 and the first insert 233, and first insert is the work Dynamic component, the blank holder 236 are located at the outside of first insert 233, the top surface of the blank holder and the material pressing core Bottom surface is opposite, and the blank holder is fixedly connected with the die holder 231, the top surface of first insert and the bottom of the material pressing core Face is opposite, and first insert is connected by first connector 232 with the die holder 231, first connector 232 Floating liftout power towards the material pressing core 213 can be provided for first insert 233.
Preferably, the die holder has the first supporting item, and first supporting item is located at first connector 232 Outside, the blank holder 236 are connected by first supporting item with the die holder 231;First connector is hydraulic pressure Cylinder, the lower end of first insert 233 are connected with the piston rod of the hydraulic cylinder, the cylinder body of the hydraulic cylinder and the die holder 231 are connected.
Preferably, the lower die further includes lower die guide part 234, and the lower die guide part 234 is arranged on the die holder Between 231 and the blank holder 236, and positioned at the outside of first supporting item;The upper mold further includes upper mold guide part 214, the upper mold guide part 214 is arranged between the upper mold seat 211 and the blank holder 236, and positioned at the described second edge The outside of block 215.
Preferably, it is additionally provided with the first guide plate between the inner wall of the outer wall of first insert 233 and first supporting item 235, the first guide plate 235 moves for the first insert 233 of guiding.
Referring to Fig. 6, the middle part of upper mold seat has groove, and in the grooves, the second insert 215 is located at 213 part of material pressing core The edge of groove, the bottom surface of material pressing core 213 are higher than the bottom surface of the second insert 215.The middle part of die holder has convex Supporting item, the bottom surface of one end on blank holder 236 close to the first insert 233 are fixed with supporting item, separate first on blank holder 236 The bottom surface of one end of insert 233 is connected with the upper end of lower die guide part 234, and lower end and the die holder 231 of lower die guide part 234 connect It connects.Lower end of the top surface of one end away from the first insert 233 also with upper mold guide part 214 is connected on blank holder 236, and upper mold is oriented to The upper end of part 214 is connected with upper mold seat 211.Upper mold guide part 214 and lower die guide part 234 play support and guiding role, Pressure apparatus can also be set to measure the pressure being applied in lower die on lower die guide part 234.
Mode is preferably carried out as one kind, the lower die guide part 234 can include guide sleeve and guide post, the guide sleeve Lower end is fixed on die holder 231, and the upper end of the guide post is fixed on blank holder 236, and the lower end of the guide post penetrates described In guide sleeve.Optionally, the lower die guide part 234 can be gas spring, be preferably nitrogen gas spring device.As another preferred Mode can also install pressure gauge on the lower die guide part 234, for testing the pressure being applied in lower die 23.
Mode is preferably carried out as one kind, the upper mold guide part 214 can include guide sleeve and guide post, the guide sleeve Upper end is fixed on upper mold seat 211, and the lower end of the guide post is fixed on blank holder 236, and the upper end of the guide post penetrates described In guide sleeve.Optionally, the upper mold guide part 214 can be gas spring, be preferably nitrogen gas spring device.
First insert of lower mould body is designed as movable part by the present embodiment, compared to the fixed knot of existing upper and lower mould Structure can adjust the size of die cavity by movable part, so that workpiece material is more bonded with die cavity, and then can be by outside The pressure of application uniformly reaches workpiece surface, and the contact between workpiece surface and mold is made to reach unanimity, so as to It eliminates various tolerances and deviation that cumulative limit is brought, so that the cooling velocity of different plates reaches unanimity from root, makes more The workpiece of chamber generation can cool down under the same conditions, reach optimal production efficiency.Further, since workpiece cooling velocity tends to Unanimously, it can be ensured that form complete martensite, it is ensured that workpiece each several part has consistent tensile strength, and it is good to improve product Rate.
The design of movable part of the present invention so that mold can adapt to different press.It avoids simultaneously because of cooldown rate Difference causes thermal expansion, makes in workpiece insertion punch-pin, and the effect for extending die life is played in the thus damage caused by insert Fruit.
Embodiment two
The present embodiment provides a kind of thermal forming device, as shown in fig. 7, the device 2 include first substrate 1, second substrate 3 with And it is arranged on multiple molds 2 between the first substrate 1 and second substrate 3.Fig. 6 is referred to, each mold 2 includes phase interworking The upper mold 21 of conjunction and lower die 23, the upper mold 21 include upper mold seat 211 and upper mold body, and the lower die 23 includes die holder 231 With lower mould body, the upper mold seat 211 is mounted on the first substrate 1, top and the upper mold of 21 body of upper mold Seat 211 is connected, and the die holder 231 is mounted on the second substrate 3, bottom and the die holder of the lower mould body 231 are connected, and the die cavity for accommodating workpiece 22 is formed between the top of 23 body of bottom and the lower die of 21 body of upper mold;Institute It states lower mould body to be fixedly connected with the die holder 231, the upper mold body has movable part, and the movable part is used to change Become the size of the die cavity, make the contact between the surface of the die cavity of each mold and the surface of corresponding workpiece in described device Pressure reaches unanimity.
In the present embodiment, the lower mould body is punch-pin, and the upper mold body is cavity plate.
Specifically, lower mould body includes the 4th insert 238, the bottom surface of the 4th insert 238 and the die holder 231 are solid Fixed, the top surface of the 4th insert has protrusion.Upper mold body include the 5th insert 216 and the second connector 217, the described 5th Insert 216 is the movable part, and the top surface of the 5th insert passes through second connector 217 and the upper mold seat 211 Connection, the bottom surface of the 5th insert 216 is opposite with the 4th insert 238, and the bottom surface of the 5th insert 216 has and institute The concave architecture of the 4th insert cooperation is stated, second connector 217 can be that the 5th insert 216 is provided towards described the The floating liftout power of four inserts 238.
Preferably, second connector 217 is hydraulic cylinder, the upper end of the 5th insert and the piston of the hydraulic cylinder Bar is connected, and the cylinder body of the hydraulic cylinder is connected with the upper mold seat 211.The quantity of second connector 217 can be multiple.
Mode is preferably carried out as one kind, the upper mold seat 211 has the storage tank in concave shape, and described second connects Fitting 217 is fixed in the storage tank, and the periphery of the 5th insert is equipped with boss, and the boss is contained in the storage tank It is interior.
Mode is preferably carried out as one kind, the upper mold body further includes limiting plate 219, and the one of the limiting plate 219 End is connected with the edge of storage tank, and the other end part shelter of limiting plate 219 states the opening of storage tank, the 5th insert Boss is located at the top of the limiting plate 219, and the limiting plate 219, which can be held in the palm, carries the boss so as to prevent the 5th insert 216 depart from the storage tank.Depending on 2 deployment scenarios of mold, limiting plate 219 can also be sold by side or stop screw replaces.
Preferably, the upper mold body further includes the second guide plate 218, and second guide plate 218 is located at the storage tank Between inner wall and the outer wall of the 5th insert 216.Second guide plate 218 moves for the 5th insert 216 of guiding.Second guide part 218 can also be lead.
It is well known that being simulated compared with cold stamping, drop stamping is for the contact gap of plate and contact quite sensitive.Compared with Big contact (20Mpa applanations) can bring the face coefficient of conductivity of about 2500W/mm2K, but for 0Mpa gaplesss This face coefficient of conductivity value will be down to below 1000W/mm2K.It can further be reduced for there being the coefficient of heat conduction in gap, This value can be poor four times or more, and the quenching velocity brought, productive temp, part quality etc. have large effect.It is and of the invention The insert (stroke of loose plug can meet required less than 10mm) of design activity, enough pressurizes are provided by hydraulic jacking cylinder Power avoids the influence for being limited by rigid mold and press ram to realize, can eliminate the inclined of various tolerance ranges Difference, so that the cooling velocities of different plates reaches unanimity from root, the significant increase production efficiency of multi-work piece production.May be used also To reduce defect rate, extend the service life of die insert.
Above description has fully disclosed the specific embodiment of the present invention.It is pointed out that it is familiar with the field Technical staff is to any change that the specific embodiment of the present invention is done all without departing from the scope of claims of the present invention. Correspondingly, the scope of claim of the invention is also not limited only to previous embodiment.

Claims (10)

1. a kind of thermal forming device, which is characterized in that including first substrate (1), second substrate (3) and be arranged on described first Multiple molds (2) between substrate and second substrate,
Each mold (2) includes the upper mold (21) to cooperate and lower die (23), the upper mold (21) including upper mold seat (211) and Upper mold body, the lower die (23) include die holder (231) and lower mould body, and the upper mold seat (211) is mounted on described first On substrate (1), the top of the upper mold body is connected with the upper mold seat (211), and the die holder (231) is mounted on described the On two substrates (3), the bottom of the lower mould body is connected with the die holder (231), the bottom of the upper mold body with it is described The die cavity for accommodating workpiece is formed between the top of lower mould body;
The upper mold body or lower mould body have movable part, and the movable part makes for changing the size of the die cavity The surface of the die cavity of each mold is reached unanimity with the contact between the surface of corresponding workpiece in described device.
2. the apparatus according to claim 1, which is characterized in that the upper mold body and the fixed company of the upper mold seat (211) It connects, the lower mould body has movable part;
The upper mold body is cavity plate, and upper mold body includes the second insert (215) and material pressing core (213), the material pressing core (213) On the upper mold seat, second insert (215) is located at the outside of the material pressing core (213), second insert with The upper mold seat is fixed, and the bottom surface of the material pressing core is higher than the bottom surface of second insert;
The lower mould body is punch-pin, and lower mould body includes blank holder (236), the first connector (232) and the first insert (233), first insert is the movable part, and the blank holder (236) is located at the outside of first insert (233), The top surface of the blank holder is opposite with the bottom surface of the material pressing core, and the blank holder is fixedly connected with the die holder (231), institute It is opposite with the bottom surface of the material pressing core to state the top surface of the first insert, first insert by first connector (232) with The die holder (231) is connected, and first connector (232) can be that first insert (233) is provided towards the pressure Expect the floating liftout power of core (213).
3. the apparatus of claim 2, which is characterized in that the die holder have the first supporting item, described first Support member is located at the outside of first connector (232), and the blank holder (236) passes through first supporting item and the lower die Seat (231) is connected;First connector is hydraulic cylinder, the lower end of first insert (233) and the piston of the hydraulic cylinder Bar is connected, and the cylinder body of the hydraulic cylinder is connected with the die holder (231).
4. device according to claim 3, which is characterized in that the lower die further includes lower die guide part (234), under described Mould guide part (234) is arranged between the die holder (231) and the blank holder (236), and positioned at first supporting item Outside;The upper mold further includes upper mold guide part (214), and the upper mold guide part (214) is arranged on the upper mold seat (211) Between the blank holder (236), and positioned at the outside of second insert (215).
5. the device according to claim 3 or 4, which is characterized in that the outer wall and described first of first insert (233) The first guide plate (235) is additionally provided between the inner wall of supporting item.
6. the apparatus according to claim 1, which is characterized in that the lower mould body and the fixed company of the die holder (231) It connects, the upper mold body has movable part;
The lower mould body is punch-pin, and lower mould body includes the 4th insert (238), the 4th insert (238) and the lower die Seat (231) is fixed, and the top surface of the 4th insert has protrusion;
The upper mold body is cavity plate, and upper mold body includes the 5th insert (216) and the second connector (217), the 5th edge Block (216) is the movable part, and the 5th insert is connected by second connector (217) and the upper mold seat (211) Connect, the 5th insert (216) and the 4th insert (238) relatively, the bottom surface of the 5th insert (216) have with it is described The concave architecture of 4th insert cooperation, second connector (217) can be that the 5th insert (216) is provided described in The floating liftout power of 4th insert (238).
7. device according to claim 6, which is characterized in that second connector (217) be hydraulic cylinder, the described 5th The upper end of insert is connected with the piston rod of the hydraulic cylinder, and the cylinder body of the hydraulic cylinder is connected with the upper mold seat (211).
8. device according to claim 6, which is characterized in that the upper mold seat (211) has in the accommodating of concave shape Slot, second connector (217) are fixed in the storage tank, and the periphery of the 5th insert is equipped with boss, the boss It is contained in the storage tank.
9. device according to claim 8, which is characterized in that the upper mold body further includes limiting plate (219), the limit One end of position plate (219) is connected with the edge of storage tank, and the other end part shelter of limiting plate (219) states opening for storage tank Mouthful, the boss of the 5th insert is located at the top of the limiting plate (219), and the limiting plate (219) can ask load described convex Platform is so as to preventing the 5th insert (216) from departing from the storage tank.
10. device according to claim 8 or claim 9, which is characterized in that the upper mold body further includes the second guide plate (218), Second guide plate (218) is located between the inner wall of the storage tank and the outer wall of the 5th insert (216).
CN201711091591.8A 2017-11-08 2017-11-08 A kind of thermal forming device Pending CN108043959A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102310147A (en) * 2011-09-26 2012-01-11 奇瑞汽车股份有限公司 Molding die for processing high-tension plate parts
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CN203992018U (en) * 2014-08-01 2014-12-10 上海屹丰汽车模具制造有限公司 The hot stamping forming die of part common mode
CN105382098A (en) * 2014-08-27 2016-03-09 本特勒尔汽车技术有限公司 Press-forming tool with tolerance compensation

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CN202212467U (en) * 2011-07-31 2012-05-09 苏州金鸿顺汽车部件股份有限公司 Forming mold for high-strength automotive anti-collision beam
CN102310147A (en) * 2011-09-26 2012-01-11 奇瑞汽车股份有限公司 Molding die for processing high-tension plate parts
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CN203764715U (en) * 2014-01-28 2014-08-13 无锡红弦汽车轻量化科技有限公司 Die hydraulic device for thermoformed steel plate sectional strengthened type parts
CN203992018U (en) * 2014-08-01 2014-12-10 上海屹丰汽车模具制造有限公司 The hot stamping forming die of part common mode
CN105382098A (en) * 2014-08-27 2016-03-09 本特勒尔汽车技术有限公司 Press-forming tool with tolerance compensation

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Application publication date: 20180518