CN202591378U - Hot stamping die - Google Patents

Hot stamping die Download PDF

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Publication number
CN202591378U
CN202591378U CN 201220115725 CN201220115725U CN202591378U CN 202591378 U CN202591378 U CN 202591378U CN 201220115725 CN201220115725 CN 201220115725 CN 201220115725 U CN201220115725 U CN 201220115725U CN 202591378 U CN202591378 U CN 202591378U
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China
Prior art keywords
hot stamping
stamping die
cooling
insert
water storage
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CN 201220115725
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Chinese (zh)
Inventor
吴彦骏
徐伟力
洪振军
罗爱辉
艾健
俞宁峰
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Baoshan Iron and Steel Co Ltd
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Baoshan Iron and Steel Co Ltd
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Priority to CN 201220115725 priority Critical patent/CN202591378U/en
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Abstract

The utility model discloses a hot stamping die. The hot stamping die comprises a plurality of insert blocks, wherein a cooling pipeline is arranged on each insert block; and in addition, a water storage communicating groove is further arranged on the end surface of each insert block, openings at the end parts of the cooling pipelines on the same insert blocks and the adjacent insert blocks are formed in the grooves, and two adjacent insert blocks are hermetically connected. The hot stamping die can fast and uniformly perform cooling and quenching on a hot-stamped part so as to meet the requirements for batch production of automobile parts.

Description

A kind of hot stamping die
Technical field
The utility model relates to a kind of mould, relates in particular to a kind of diel.
Background technology
Hot press-formed technology can overcome the shortcoming that traditional super-high strength steel plate shaping is difficult, parts size precision is low.Its technological process is as shown in Figure 1; Earlier green strength is heated to the austenitic temperature about 950 ℃ at the boron plate about 400~600Mpa 1 through heating furnace 2; The cooling circuit system cools of passing through hot stamping die 3 through hot stamping die 3 quick punching presses and under packing state is again quenched, thereby obtains superelevation tensile strength part 4 (its intensity is more than 1500Mpa).In automobile industry, the drop stamping part can significantly improve the crashworthiness of vehicle body, alleviates car weight, satisfies the requirement of automobile industry to security, energy-conserving and environment-protective and comfortableness.Drop stamping technology need be quenched in mould with the maximum different hot parts in back that are to be shaped of traditional cold punching press in pressurize.In order to reach the desired cooling velocity of drop stamping technology, need in hot stamping die, arrange cooling circuit.Therefore, in order to satisfy the production efficiency of per minute 3 strokes in the actual production in enormous quantities, the design of mold cools down circuit system is the key that guarantees cooling effect.
The external formal mould of drop stamping volume production all adopts independently cooling circuit system of sectional type at present; Like Fig. 2, shown in Figure 3; One mold generally is divided into a plurality of inserting, and each is inserted and constitutes an independently cooling circuit system, i.e. the cooling water pipeline 5 of boring processing mold profile in each is inserted; The two ends of cooling water pipeline 5 are blocked with plug 6, process the water inlet pipe 7 and outlet pipe 8 inserted then.To respectively insert afterwards is assembled together, and the water inlet pipe 7 that will respectively insert again is connected water service pipe with outlet pipe 8, thereby forms complete cooling system.Technique scheme has the heat transfer efficiency height, when producing in enormous quantities, can change the advantage of inserting.But this mold cools down circuit system is complicated, and the sealing position is more, is prone to the situation that cooling water is revealed; And position, plug 6 place no-cooling-water passes through, and makes that the cooling effect at this position is relatively poor; In addition, the inlet and outlet pipe lines of respectively inserting 7,8 will be connected with die face cooling water pipeline 5, and bore process is complicated, and the process-cycle is long.On the other hand, the domestic technical scheme of not making the formal mould of drop stamping volume production at present has only the original mold that adopts the monoblock cast form, and it can't satisfy the productive temp requirement of batch process because heat transfer efficiency is low.
Summary of the invention
The goal of the invention of the utility model provides a kind of hot stamping die; This hot stamping die can cool off the steel plate after the punching press equably; And it is simple in structure, reliable and practical, can effectively reduce the production cost of drop stamping part, thereby satisfies the auto parts batch production requirement.
According to the foregoing invention purpose, the utility model provides a kind of hot stamping die, comprise several and insert that respectively inserting is provided with cooling line; In addition, respectively inserting to go up also is provided with a water storage connectivity slot on end face, same insert go up and adjacent inserting on each cooling line open-ended all in this groove, adjacent two insert is tightly connected.
In the present technique scheme, mould is spliced by some inserting, and each two ends of inserting is equipped with a water storage connectivity slot.When adopting the described hot stamping die of present technique scheme that steel plate is carried out drop stamping; Cooling water is introduced into and converges in to be inserted in the water storage connectivity slot of an end; Then equably in the water storage connectivity slot the open-ended of each cooling line enter in this each cooling line of inserting, thereby the drop stamping part on this is inserted cools off uniformly; Cooling water through this cooling line of inserting after; Get into and converge in another water storage connectivity slot; The open-ended of each cooling line enters in adjacent each cooling line of inserting in this water storage connectivity slot again, thereby the drop stamping part on adjacent the inserting is cooled off uniformly.By that analogy, cooling water flows through whole hot stamping die, thus to the drop stamping part on the whole hot stamping die carry out fast, Cooling Quenching operation equably.
In hot stamping die; When the somewhere cooling line during certain is inserted takes place to leak; Converge in the next water storage connectivity slot through this cooling water of going up all the other cooling lines of inserting, and flow into equably in the adjacent cooling line of inserting, thereby can not have influence on follow-up Cooling Quenching operation of inserting.
In above-mentioned hot stamping die, adjacent two insert connects through dormant bolt.
Preferably, in above-mentioned hot stamping die, adjacent two insert is connected with bolt through binding groove, so that staff's dismounting is inserted.
Preferably, in above-mentioned hot stamping die, water storage connectivity slot outer ring is provided with an annular seal groove.0 shape sealing ring is pressed in the annular seal groove, can effectively seals the water storage connectivity slot.
The described hot stamping die of the utility model has the following advantages:
(1) this hot stamping die can cool off the steel plate after the punching press fast, equably, and has eliminated the relatively poor defective of local cooling effect that exists in the existing hot stamping die;
(2) this hot stamping die is simple in structure, reliable and practical, even the cooling water pipeline in mould somewhere leaks, also can not influence the cooling at other positions;
(3) this hot stamping die is simple in structure, is easy to processing, thereby effectively reduces the manufacturing cost of hot stamping die, and then has reduced the manufacturing cost of drop stamping part;
(4) this hot stamping die has the advantage that cooling velocity is fast, production cost is low, thereby can satisfy the auto parts batch production requirement.
Description of drawings
Fig. 1 is the flow chart of hot press-formed technology.
Fig. 2 is the structural representation of existing mold.
Fig. 3 is the structural representation of the A that inserts among Fig. 2.
Fig. 4 is the structural representation of the described hot stamping die of the utility model under a kind of embodiment.
Fig. 5 is the vertical view of the described hot stamping die of the utility model punch in one embodiment.
Fig. 6 is the structural representation of the described hot stamping die of the utility model punch in one embodiment.
Fig. 7 is the split structural representation of the described hot stamping die of the utility model punch in one embodiment.
Fig. 8 is the structural representation of the described hot stamping die of the utility model punch insert in one embodiment.
Fig. 9 is the sectional view of B-B face among Fig. 8.
Figure 10 is the structural representation of the described hot stamping die of the utility model cooling water interface in one embodiment.
Figure 11 is the front view of Figure 10.
Figure 12 is the structural representation of the described hot stamping die of the utility model binding groove in one embodiment.
Figure 13 is the sectional view of C-C face among Figure 12.
Figure 14 is the split structure chart of the described hot stamping die of the utility model die in one embodiment.
The specific embodiment
To combine Figure of description and concrete embodiment that the described hot stamping die of the utility model is done further detailed description below.
Fig. 4 has shown the described hot stamping die of the utility model structure in the present embodiment.As shown in Figure 4, punch 101a and die 101b are separately fixed on lower bolster 105a and the cope match-plate pattern 105b.Punch 101a and die 101b include two inserting 102, being located at the blank holder 104 of 102 both sides of inserting and the warter connection 103 that is tightly connected with 102 ends of inserting of being connected sealed to each other.Wherein, every 102 the length of inserting all is no more than 400mm, so that boring processing; Because blank holder 104 can not influence the performance of part, so it adopts the poor slightly monoblock cast mode of heat transfer efficiency, to practice thrift cost.
Fig. 5, Fig. 6, Fig. 7 have shown the structure of the described hot stamping die of the utility model punch in the present embodiment.Like Fig. 5, Fig. 6, shown in Figure 7,102a one end of inserting is connected with bolt through binding groove 108 with 102b one end of inserting, and it connects end face and is provided with a water storage connectivity slot 107.Blank holder 104 is located at the both sides of the 102a that inserts, 102b.Insert 102a, 102b other end end face is tightly connected with warter connection 103 respectively, in order to insert cooling water.Be equipped with water storage connectivity slot 107 on each warter connection 103.Insert and respectively be provided with 8 edges cooling line 106 that length direction is provided with of inserting in 102a, the 102b; The caliber of cooling line 106 is 18mm; Distance between per two cooling lines 106 is between 10~20mm; And the distance on the 102a that inserts, 102b surface is between 10~15mm, can quick and uniform heat of cooling punching parts to guarantee respectively to insert.Cooling line 106 openings at two ends all are located in the water storage connectivity slot 107 at the 102a that inserts, 102b two ends.
Fig. 8, Fig. 9 have shown the structure of the water storage connectivity slot of the described hot stamping die of the utility model between inserting in the present embodiment.Like Fig. 8, shown in Figure 9, the 102 end face tops of inserting are provided with the water storage connectivity slot 107 of an irregular T shape, and the open-ended of cooling water pipe 106 all is located in the water storage connectivity slot 107.Be provided with a circle annular seal groove 109 in water storage connectivity slot 107 outer rings, itself and 0 shape sealing ring are used, and play the effect of sealing water storage connectivity slot 107.
Figure 10, Figure 11 have shown the described hot stamping die of the utility model structure of warter connection in the present embodiment.Like Figure 10, shown in Figure 11, water storage connectivity slot 107 is located on the warter connection, and its structure and the water storage connectivity slot of being located between inserting are basic identical, are shaped as irregular T shape, and the outer ring is provided with a circle annular seal groove 109.The limbers of warter connection is located in the water storage connectivity slot 107, and the open-ended of the cooling pipe on adjacent the inserting all is located in the water storage connectivity slot 107.Some bolts hole are located on the warter connection of water storage connectivity slot 107 belows, connect warter connection and insert in order to bolt.Be provided with a sealing bolt hole 112 on water storage connectivity slot 107 tops, its outer ring is provided with a circle annular seal groove 109, in order to sealing water storage connectivity slot 107.
Figure 12, Figure 13 have shown the described hot stamping die of the utility model structure of binding groove in the present embodiment.Like Figure 12, shown in Figure 13, the both sides of the end bottom of inserting are provided with two binding grooves, and binding groove comprises interconnective dovetail groove 110 and U-lag 111.Through the bolt hole on bolt-through U-lag 111 and adjacent the inserting, be fixed together thereby two inserted.The effect of dovetail groove is to make things convenient for staff's dismounting to insert.
Figure 14 has shown the structure of the described hot stamping die of the utility model die in the present embodiment.Shown in figure 14, the structure of die and the structure of punch are basic identical, and its difference is to be fixedly connected through dormant bolt 113 between two die plate inserts; Be provided with 10 cooling lines in each die plate insert; And each water storage connectivity slot 107 is shaped as irregular U-shaped in die; In addition, be not provided with the sealing bolt hole in the water storage connectivity slot on the warter connection of die.
When hot stamping die is worked; Cooling water gets into and converges in the water storage connectivity slot on the warter connection through water service pipe; The open-ended of cooling line flows in first interior cooling line of inserting equably in inserting through first then, and mould is cooled off; After cooling water is inserted through first; Converge in two water storage connectivity slots between inserting; The open-ended of cooling line flows in second interior cooling line of inserting, after in the water storage connectivity slot inflow water service pipe in another warter connection equably in inserting through second again.
Be noted that the above specific embodiment of enumerating that is merely the utility model, obviously the utility model is not limited to above embodiment, and many similar variations are arranged thereupon.If those skilled in the art from all distortion that the disclosed content of the utility model directly derives or associates, all should belong to the protection domain of the utility model.

Claims (4)

1. a hot stamping die comprises several and inserts, and respectively inserting is provided with cooling line; It is characterized in that; Respectively inserting to go up is provided with a water storage connectivity slot on end face, same insert go up and adjacent inserting on each cooling line open-ended all in this groove, adjacent two insert is tightly connected.
2. hot stamping die as claimed in claim 1 is characterized in that, adjacent two insert connects through dormant bolt.
3. hot stamping die as claimed in claim 1 is characterized in that, adjacent two insert is connected with bolt through binding groove.
4. like claim 2 or 3 described hot stamping dies, it is characterized in that said water storage connectivity slot outer ring is provided with an annular seal groove.
CN 201220115725 2012-03-23 2012-03-23 Hot stamping die Active CN202591378U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220115725 CN202591378U (en) 2012-03-23 2012-03-23 Hot stamping die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220115725 CN202591378U (en) 2012-03-23 2012-03-23 Hot stamping die

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104043732A (en) * 2013-03-15 2014-09-17 现代自动车株式会社 Hot stamping mold
CN104275411A (en) * 2014-10-24 2015-01-14 东莞市豪斯特热冲压技术有限公司 Improved type mold structure
CN104550494A (en) * 2015-01-29 2015-04-29 大连理工大学 Thermoforming water-cooled mold with transverse splicing structure and sealing performance testing method for thermoforming water-cooled mold
CN106552863A (en) * 2015-09-24 2017-04-05 上海凌云汽车模具有限公司 The side chain structure that amphitypy block is laterally locked
CN107042264A (en) * 2017-03-17 2017-08-15 江苏华强模具科技有限公司 A kind of drop stamping experiment mould
CN107225181A (en) * 2016-03-25 2017-10-03 宝山钢铁股份有限公司 A kind of automobile B-column class part hot stamping die without blank holder
CN110449518A (en) * 2019-09-16 2019-11-15 安徽江淮福臻车体装备有限公司 A kind of cooling system forming method heating punch-forming mold

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104043732A (en) * 2013-03-15 2014-09-17 现代自动车株式会社 Hot stamping mold
CN104275411A (en) * 2014-10-24 2015-01-14 东莞市豪斯特热冲压技术有限公司 Improved type mold structure
CN104550494A (en) * 2015-01-29 2015-04-29 大连理工大学 Thermoforming water-cooled mold with transverse splicing structure and sealing performance testing method for thermoforming water-cooled mold
CN104550494B (en) * 2015-01-29 2016-08-31 大连理工大学 Horizontally-spliced structure hot forming water cooling mold and sealing property detecting method thereof
CN106552863A (en) * 2015-09-24 2017-04-05 上海凌云汽车模具有限公司 The side chain structure that amphitypy block is laterally locked
CN107225181A (en) * 2016-03-25 2017-10-03 宝山钢铁股份有限公司 A kind of automobile B-column class part hot stamping die without blank holder
CN107225181B (en) * 2016-03-25 2019-08-27 宝山钢铁股份有限公司 A kind of automobile B-column class part hot stamping die of no blank holder
CN107042264A (en) * 2017-03-17 2017-08-15 江苏华强模具科技有限公司 A kind of drop stamping experiment mould
CN110449518A (en) * 2019-09-16 2019-11-15 安徽江淮福臻车体装备有限公司 A kind of cooling system forming method heating punch-forming mold

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