CN102228940A - Thermal forming die for high-strength steel plates - Google Patents

Thermal forming die for high-strength steel plates Download PDF

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Publication number
CN102228940A
CN102228940A CN2011101125180A CN201110112518A CN102228940A CN 102228940 A CN102228940 A CN 102228940A CN 2011101125180 A CN2011101125180 A CN 2011101125180A CN 201110112518 A CN201110112518 A CN 201110112518A CN 102228940 A CN102228940 A CN 102228940A
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CN
China
Prior art keywords
water
die
water inlet
insert
cooling
Prior art date
Application number
CN2011101125180A
Other languages
Chinese (zh)
Inventor
齐东胜
张军
冯超
徐国松
李龙志
Original Assignee
上海北特科技股份有限公司
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.)
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Application filed by 上海北特科技股份有限公司 filed Critical 上海北特科技股份有限公司
Priority to CN2011101125180A priority Critical patent/CN102228940A/en
Publication of CN102228940A publication Critical patent/CN102228940A/en

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Abstract

The invention relates to a thermal forming die for high-strength steel plates. The thermal forming die comprises an upper sliding block of a press; an upper die holder is arranged on the upper sliding block of the press; a lower die holder is arranged on a lower table top of the press; an upper die insert is arranged on the upper die holder; the upper die insert comprises at least two upper forming inserts; a lower die insert is arranged on the lower die holder; the lower die insert comprises at least two lower forming inserts; the thermal forming die also comprises an upper water inlet bar and an upper water outlet bar on the upper die holder and a lower water inlet bar and a lower water outlet bar on the lower die holder; each water inlet in the upper water inlet bar is connected with each water outlet in the upper water outlet bar through a first cooling water passage arranged on each upper forming insert; and each water inlet in the lower water inlet bar is connected with each water outlet in the lower water outlet bar through a second cooling water passage arranged on each lower forming insert. The thermal forming die has the advantages of saving the material cost, reducing the machining difficulty, realizing better cooling effect and improving the quality of parts.

Description

The high-strength steel sheet hot forming tool

Technical field

The present invention relates to a kind of high-strength steel sheet hot forming tool, relate in particular to the cooling pipe structure of this hot forming tool.

Background technology

In recent years, along with the light-weighted proposition of automobile and people to the pay attention to day by day of security by bus, the thermoforming part of high-strength steel sheet more and more is subjected to automaker's favor.High-strength steel sheet is after thermoforming, its interior tissue all is converted into martensitic structure, on the macro property, the yield strength of part is greater than 1000MPa, tensile strength has promoted the collision performance and the fatigue strength of vehicle body, simultaneously greatly greater than 1500Mpa, the high-strength steel sheet that is used for thermoforming does not need too thick thickness yet, thereby has alleviated pts wt.

Chinese patent literature CN10128889 discloses a kind of " ultra-high strength steel hot stamping forming die ", and this mould comprises upper bolster and is fixed on punch, the die shoe on the upper bolster and is fixed on die on the die shoe, is provided with cooling-water duct in the die.

Chinese patent literature CN101972814A discloses a kind of " a kind of super-high strength steel door anti-collision joist hot stamping die ", and this mould comprises combination punch-die, cooling system, coolant seal circle.Cooling system employing boring, boring back are being processed the racetrack tank sealed at both ends near the piecemeal mould apart from both ends of the surface 10-50mm position; Cooling water enters from a tank, is flowed out by another tank.The place is provided with seal groove at bosh, built-in sealing ring, and external cooling water pipe.

Chinese patent literature CN1829813 discloses a kind of " hot-forming method and thermoforming member ", for the steel plate of special component be heated to austenitic temperature (Ac3) above and keep after, carry out the shaping of end article shape, in the cooling of the forming temperature in shaping or after be shaped, the cooling velocity of the martensite shop temperature (Ms point) of arrival formed parts is more than critical cooling rate, and, be that Quenching Treatment is carried out in 25-150 ℃/s cooling with average cooling rate from Ms o'clock to 200 ℃.

In order to realize being converted into martensitic cooling velocity, the cooling line design in the die cavity is most important.Method for designing of the prior art is that a plurality of tandems of inserting connect, cooling water by first insert flow to mould after, insert by other successively and from last outflow of inserting, the defective of this method for designing is: one, along with the trend of cooling water channel, cooling water temperature is raising gradually, and its heat that can take away reduces gradually, cause the part cooling velocity inconsistent, and finally influence the mechanical performance of part; Two, take away more heat in order to make cooling water, necessary enlargement discharge, and because the pipeline complexity in the die cavity can cause water flow pressure to raise, needing to dispose powerful water circulating pump could satisfy, and has increased quenching difficulty and input cost; Three, owing to there is higher hydraulic pressure, be difficult to handle the current leakage problems completely, cause the mould corrosion, increased maintenance cost, reduced die life.

Summary of the invention

The technical issues that need to address of the present invention have provided a kind of high-strength steel sheet hot forming tool, are intended to solve the above problems.

In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:

The present invention includes: the press top shoe; On described press top shoe, install die holder; Die shoe is installed on the press following table; Patrix is installed on upper bolster to be inserted; Described patrix is inserted and is comprised that go up being shaped more than at least 2 insert; Counterdie is installed on described die shoe to be inserted; Described counterdie is inserted and is comprised that go up being shaped more than at least 2 insert; It is identical with the number of descending to be shaped to insert that described last shaping is inserted; Also comprise: water inlet row and upper water-out row on the upper bolster, and following water inlet row and following water outlet on die shoe are arranged; Described each water inlet of going up among the water inlet row links to each other with each delivery port during described upper water-out is arranged by being arranged in first cooling-water duct that is shaped each on inserting; Each water inlet among the described down water inlet row links to each other with each delivery port among the described row of water outlet down by being arranged in each second cooling-water duct that is shaped down on inserting.

Compared with prior art, the invention has the beneficial effects as follows: saved material cost, reduced difficulty of processing, realized better cooling effect, improved the part quality.

Description of drawings

Fig. 1 is a main TV structure schematic diagram of the present invention.

Fig. 2 is the lateral plan of Fig. 1.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail:

By Fig. 1, Fig. 2 as seen: the present invention includes: press top shoe 1; On described press top shoe 1, install die holder 2; Die shoe 5 is installed on the press following table 6; Patrix is installed on upper bolster 2 is inserted 3; Described patrix is inserted and 3 is comprised that go up being shaped more than at least 2 insert 31; Counterdie is installed on described die shoe 5 is inserted 4; Described counterdie is inserted and 4 is comprised that go up being shaped more than at least 2 insert 41; Described go up to be shaped inserts 31 and shaping 41 numbers of inserting are identical down; Also comprise: water inlet row 9 and upper water-out row 90 on the upper bolster 2, and following water inlet row 91 and following water outlet on die shoe 5 arrange 92; Described each water inlet of going up among the water inlet row 9 links to each other with each delivery port that described upper water-out is arranged in 90 by being arranged in first cooling-water duct of inserting on 31 7 that is shaped each on; Each water inlet among the described down water inlet row 91 links to each other with each delivery port among the described row of water outlet down 92 by being arranged in each second cooling-water duct 10 of inserting on 41 that is shaped down.

Described go up to be shaped insert 31 and last shaping insert and 41 be respectively 3.Thermoforming part 8 among the figure.

Water circuit system of the present invention is arranged in during upper and lower mould inserts, and respectively sets up two branch water rows on the upper and lower mould die holder, and one connects water inlet pipe, and one connects outlet pipe.The branch water row who connects water inlet pipe is provided with the outlet of a plurality of water routes, each delivery port is inserted and is linked to each other with one by pipeline, the branch water row who connects outlet pipe is provided with a plurality of waterway inlets, and each water inlet is inserted and linked to each other with one by pipeline, has so just formed each independent cooling system of inserting.Become a plurality of independent loops, the loop number is identical with the number of inserting.

Claims (2)

1. a high-strength steel sheet hot forming tool comprises: the press top shoe; On described press top shoe, install die holder; Die shoe is installed on the press following table; Patrix is installed on upper bolster to be inserted; Described patrix is inserted and is comprised that go up being shaped more than at least 2 insert; Counterdie is installed on described die shoe to be inserted; Described counterdie is inserted and is comprised that go up being shaped more than at least 2 insert; It is identical with the number of descending to be shaped to insert that described last shaping is inserted; It is characterized in that also comprising: water inlet row and upper water-out row on the upper bolster, and following water inlet row and following water outlet on die shoe are arranged; Described each water inlet of going up among the water inlet row links to each other with each delivery port during described upper water-out is arranged by being arranged in first cooling-water duct that is shaped each on inserting; Each water inlet among the described down water inlet row links to each other with each delivery port among the described row of water outlet down by being arranged in each second cooling-water duct that is shaped down on inserting.
2. high-strength steel sheet hot forming tool according to claim 1 is characterized in that: described go up to be shaped inserted and gone up shaping and insert and be respectively 3.
CN2011101125180A 2011-05-03 2011-05-03 Thermal forming die for high-strength steel plates CN102228940A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011101125180A CN102228940A (en) 2011-05-03 2011-05-03 Thermal forming die for high-strength steel plates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011101125180A CN102228940A (en) 2011-05-03 2011-05-03 Thermal forming die for high-strength steel plates

Publications (1)

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CN102228940A true CN102228940A (en) 2011-11-02

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104815908A (en) * 2015-05-06 2015-08-05 翟述基 Water cooling mold for high-strength steel plate stamping part thermal forming
CN104923660A (en) * 2014-03-20 2015-09-23 宝山钢铁股份有限公司 Hot stamping die of snakelike cooling water channel type
CN105598282A (en) * 2015-12-30 2016-05-25 吉林大学 Hot forming punching device of automobile energy absorbing structure and punching method
CN110369621A (en) * 2019-07-05 2019-10-25 东莞理工学院 A kind of block insert type hot-forming die cooling system that temperature controls with the shape
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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1671715A1 (en) * 2003-10-02 2006-06-21 Nippon Steel Corporation Apparatus and method of hot press-forming metal plate material
US20090071217A1 (en) * 2007-09-13 2009-03-19 The Boeing Company Composite Fabrication Apparatus and Method
CN201231286Y (en) * 2008-07-31 2009-05-06 钢铁研究总院 Baby fixation device for imaging department
CN201712076U (en) * 2010-06-28 2011-01-19 渭南安信电子技术有限公司 Concentrated cooling monocrystalline silicon wire cutting unit
CN202114161U (en) * 2011-05-03 2012-01-18 上海北特科技股份有限公司 Thermoforming die for high-strength steel plates

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1671715A1 (en) * 2003-10-02 2006-06-21 Nippon Steel Corporation Apparatus and method of hot press-forming metal plate material
US20090071217A1 (en) * 2007-09-13 2009-03-19 The Boeing Company Composite Fabrication Apparatus and Method
CN201231286Y (en) * 2008-07-31 2009-05-06 钢铁研究总院 Baby fixation device for imaging department
CN201712076U (en) * 2010-06-28 2011-01-19 渭南安信电子技术有限公司 Concentrated cooling monocrystalline silicon wire cutting unit
CN202114161U (en) * 2011-05-03 2012-01-18 上海北特科技股份有限公司 Thermoforming die for high-strength steel plates

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104923660A (en) * 2014-03-20 2015-09-23 宝山钢铁股份有限公司 Hot stamping die of snakelike cooling water channel type
CN104815908A (en) * 2015-05-06 2015-08-05 翟述基 Water cooling mold for high-strength steel plate stamping part thermal forming
CN105598282A (en) * 2015-12-30 2016-05-25 吉林大学 Hot forming punching device of automobile energy absorbing structure and punching method
CN110369621A (en) * 2019-07-05 2019-10-25 东莞理工学院 A kind of block insert type hot-forming die cooling system that temperature controls with the shape
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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Application publication date: 20111102