KR20170110251A - Mold device for hot stamping - Google Patents

Mold device for hot stamping Download PDF

Info

Publication number
KR20170110251A
KR20170110251A KR1020160034357A KR20160034357A KR20170110251A KR 20170110251 A KR20170110251 A KR 20170110251A KR 1020160034357 A KR1020160034357 A KR 1020160034357A KR 20160034357 A KR20160034357 A KR 20160034357A KR 20170110251 A KR20170110251 A KR 20170110251A
Authority
KR
South Korea
Prior art keywords
workpiece
cooling
mold
upper mold
conduit
Prior art date
Application number
KR1020160034357A
Other languages
Korean (ko)
Inventor
유정우
Original Assignee
현대제철 주식회사
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 현대제철 주식회사 filed Critical 현대제철 주식회사
Priority to KR1020160034357A priority Critical patent/KR20170110251A/en
Publication of KR20170110251A publication Critical patent/KR20170110251A/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/10—Die sets; Pillar guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/16—Heating or cooling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

An invention for a hot stamping mold apparatus is disclosed. A hot-stamping mold apparatus according to the present invention comprises: an upper mold positioned on an upper side of a workpiece; a lower mold facing the upper mold and positioned below the workpiece; and a lower mold disposed on at least one of the upper mold and the lower mold, And a cooling spraying portion for spraying the cooling fluid to the workpiece in cooperation with the operation of pressing the workpiece.

Description

[0001] MOLD DEVICE FOR HOT STAMPING [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a hot stamping mold apparatus, and more particularly, to a hot stamping mold apparatus capable of improving the cooling efficiency of a work material by injecting a cooling fluid simultaneously with hot stamping molding.

Generally, hot stamping is a step of heating a steel material to be machined to a temperature of 900 ° C or more, feeding the heated machined material into the metal mold to form a molded product, and then quenching the molded product in the metal mold to produce a molded product. The molding and cooling operations are performed at the same time.

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Laid-Open Publication No. 2015-0079700 (published on Jul. 20, 2018, entitled Hot Stamping Apparatus).

According to one embodiment of the present invention, there is provided a hot stamping mold apparatus capable of improving cooling efficiency of a workpiece by injecting a cooling fluid simultaneously with hot stamping molding.

A hot-stamping mold apparatus according to the present invention comprises: an upper mold positioned on an upper side of a workpiece; a lower mold facing the upper mold and positioned below the workpiece; and an upper mold disposed on at least one of the upper mold and the lower mold, And a cooling spraying part for spraying the cooling fluid to the workpiece in cooperation with the operation of pressing the workpiece by the mold.

It is preferable that the upper mold further includes a first cooling channel in the form of a pipe for guiding the movement of the cooling water to the inside of the first processing surface of the upper mold facing the workpiece.

It is preferable that the lower mold further includes a second cooling channel in the form of a pipe guiding the movement of the cooling water to the inside of the second processing surface of the lower mold facing the workpiece.

The lower mold preferably includes a lower mold body located at a lower portion of the upper mold, and a projecting protrusion protruding upward from the lower mold body and inserted into the upper mold together with the material to be processed by movement of the upper mold.

It is preferable that the cooling jet portion includes a supply pipe for supplying the cooling fluid to the inside of the protrusion and a branch pipe for branching from the supply pipe and communicating with the outside of the protrusion and supplying the cooling fluid toward the workpiece.

The supply pipe includes a first pipe extending from the lower side of the pipe to the upper side for guiding upward movement of the cooling fluid and a second pipe connected to the upper side of the first pipe and having a larger diameter than the first pipe, And a second conduit for storing the fluid.

Further, it is preferable that the branch pipe is connected to the second pipe and is branched radially about the branch pipe and communicates with the side surface of the protrusion.

A hot stamping mold apparatus according to the present invention is a mold apparatus for hot stamping that forms a workpiece between an upper mold and a lower mold and injects a cooling fluid to a side of the workpiece formed through the cooling spray unit to improve the cooling efficiency of the workpiece .

1 is a cross-sectional view schematically showing the structure of a hot stamping mold apparatus according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view illustrating a state in which an upper mold is lowered to form a workpiece according to an embodiment of the present invention.
3 is a cross-sectional view illustrating a state in which a cooling fluid is moved by operating a cooling jet according to an embodiment of the present invention.
FIG. 4 is a cross-sectional view illustrating a cooling spray unit according to an embodiment of the present invention.

Hereinafter, a hot stamping mold apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

Further, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a cross-sectional view schematically showing the structure of a hot stamping mold apparatus according to an embodiment of the present invention. FIG. 2 is a cross-sectional view illustrating a state in which an upper mold is lowered to form a workpiece according to an embodiment of the present invention. FIG. 3 is a cross-sectional view illustrating a state in which a cooling fluid is moved by a cooling injection unit according to an embodiment of the present invention. FIG. 4 is a cross-sectional view illustrating a cooling spray unit according to an embodiment of the present invention. Sectional view.

1 and 2, a hot stamping mold apparatus 1 according to an embodiment of the present invention includes an upper mold 10 positioned on the upper side of a work material 40, A lower mold 20 positioned below the processing material 40 and an upper mold 10 disposed at at least one of the upper mold 10 and the lower mold 20 to face the processing material 40, And a cooling / spraying part (30) for spraying the cooling fluid (42) with the work material (40) in cooperation with the pressurizing operation.

The upper mold 10 is located on the upper side of the workpiece 40 and is moved up and down to press the upper side of the workpiece 40. The upper mold 10 according to the embodiment is provided with a first cooling process for guiding the movement of the cooling water 44 to the inside of the first processing surface 12 of the upper mold 10 facing the workpiece 40 Channel < / RTI >

A plurality of first cooling channels 14 are provided in the body of the upper mold 10 along the first processing surface 12 and the cooling water 44 moves along the first cooling channel 14, The upper mold 10 contacting the work 40 and the workpiece 40 is cooled.

On the lower side of the upper mold 10, a groove for inserting a protruding portion of the lower mold 20 is formed. The upper mold 10 moves to the lower side in a state where the workpiece 40 heated to the set temperature is positioned at the lower side and molds the workpiece 40 together with the lower mold 20. [

The lower mold 20 faces the upper mold 10 and is positioned on the lower side of the workpiece 40. The lower mold 20 according to one embodiment includes a lower mold body 26, a protruding portion 28, and a second cooling channel 24.

The lower mold body 26 is positioned below the upper mold 10 and supports the lower side of the workpiece 40 when the upper mold 10 descends.

The projecting protrusion 28 protrudes upward from the lower mold body 26 and is inserted into the upper mold 10 together with the workpiece 40 by the movement of the upper mold 10. [ The protrusion 28 protrudes upward from the center of the lower mold body 26, and the cooling injection part 30 is installed inside the protrusion 28.

A second machining surface 22 is provided on the surface of the lower mold body 26 facing the upper mold 10 and the surface of the protrusion 28. A second cooling channel 24 in the form of a pipe for guiding the movement of the cooling water 44 is provided inside the second processing surface 22 of the lower mold 20 facing the processing material 40.

A plurality of second cooling channels 24 are provided in the body of the lower mold 20 along the second processing surface 22 and the cooling water 44 moves along the second cooling channel 24, The lower mold 20 contacting the work 40 and the workpiece 40 is cooled.

3 and 4, the cooling and spraying unit 30 is installed in at least one of the upper mold 10 and the lower mold 20, and the upper mold 10 presses the workpiece 40 Various modifications are possible within a technical spirit of jetting the cooling fluid 42 to the workpiece 40 in conjunction with the operation of operating the same.

The cooling fluid 42 according to one embodiment uses high-pressure cooling air, but in addition to air, a fluid such as an inert gas or water can also be used as the cooling fluid 42. The cooling / spraying section (30) includes a supply pipe path (32) and a branch path (38).

The supply conduit 32 may be formed in various shapes within the technical concept of supplying the cooling fluid 42 to the inside of the protrusion 28. The supply line 32 according to one embodiment includes a first line 34 and a second line 36. The first conduit 34 extends upward from the lower side of the projection 28 to guide the upward movement of the cooling fluid 42. The second conduit 36 is connected to the upper side of the first conduit 34 and has a larger diameter than the first conduit 34 and forms a space for storing the cooling fluid 42 moved along the first conduit 34 do.

The cooling fluid 42 moved upward along the first conduit 34 is collected in the second conduit 36 and moved along the branch conduit 38 again so that the uniform distribution of the cooling fluid 42 is facilitated .

The branch pipe 38 branches at the supply pipe passage 32 and communicates with the outside of the protrusion 28 to supply the cooling fluid 42 toward the workpiece 40. [ The branch passage 38 according to one embodiment is connected to the second passage 36 and is radially branched about the branch passage 38 to communicate with the side surface of the projecting portion 28.

Hereinafter, an operating state of the hot stamping mold apparatus 1 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1, a workpiece 40 heated to a predetermined temperature is positioned between the upper mold 10 and the lower mold 20. As shown in FIG.

The upper metal mold 10 moves downward to press the workpiece 40 as shown in Figure 2 so that the workpiece 40 has the shape of the first work surface 12 and the shape of the second work surface 22 .

3, after the upper mold 10 presses the workpiece 40, the cooling fluid 42 is supplied through the first conduit 34 of the supply conduit 32. As shown in Fig. The cooling fluid 42 moves upward through the first conduit 34 to be collected in the second conduit 36 and laterally moved through the branch conduit 38. The cooling fluid 42 moved through the branch passage 38 is sprayed in the lateral direction of the workpiece 40 to cool the side surface of the workpiece 40 which is relatively poorly cooled.

The hot stamping mold apparatus 1 can secure the strength of the sidewall portion of the molded product by simultaneously injecting the high-pressure cooling fluid 42 to the side surface of the working material 40 at the same time as the hot stamping of the working material 40 , It is possible to suppress the occurrence of twisting and twisting of the product due to cooling imbalance after the product is taken out, thereby improving the dimensional accuracy of the processed product.

As described above, according to the present invention, the machining workpiece 40 is formed between the upper mold 10 and the lower mold 20, and at the same time, the side surface of the machining workpiece 40 molded through the cooling / So that the cooling efficiency of the workpiece 40 can be improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined by the appended claims. will be. Accordingly, the true scope of the present invention should be determined by the following claims.

1: Molding device for hot stamping
10: upper mold 12: first working surface
14: first cooling channel 20: lower mold
22: second working surface 24: second cooling channel
26: Lower mold body 28:
30: Cooling / spraying section 32:
34: first conduit 36: second conduit
38: Branch furnace 40: Working material
42: cooling fluid 44: cooling water

Claims (7)

An upper mold positioned on the upper side of the workpiece;
A lower mold facing the upper mold and positioned below the workpiece; And
And a cooling / spraying part provided at least at one of the upper mold and the lower mold, for spraying the cooling fluid to the workpiece in cooperation with the operation of pressing the workpiece by the upper mold, Molding device for stamping.
The method according to claim 1,
Wherein the upper mold further includes a first cooling channel in the form of a pipe for guiding the movement of the cooling water to the inside of the first processing surface of the upper mold facing the workpiece.
3. The method of claim 2,
Wherein the lower mold further comprises a channel-shaped second cooling channel for guiding the movement of the cooling water to the inside of the second processing surface of the lower mold facing the workpiece.
The method according to claim 1,
The lower mold includes a lower mold body positioned at a lower portion of the upper mold; And
And a protrusion protruding upward from the lower mold body and inserted into the upper mold together with the workpiece by movement of the upper mold.
5. The method of claim 4,
Wherein the cooling jet portion includes: a supply pipe for supplying a cooling fluid to the inside of the protruding portion; And
And a branch pipe branching from the supply pipe path and communicating with the outside of the projecting portion and supplying the cooling fluid toward the workpiece.
6. The method of claim 5,
Wherein the supply conduit includes: a first conduit extending from a lower side of the protrusion upward to guide upward movement of the cooling fluid; And
And a second conduit connected to the upper side of the first conduit and having a larger diameter than the first conduit and storing the cooling fluid moved along the first conduit.
The method according to claim 6,
Wherein the branch pipe is connected to the second pipe and is radially branched about the branch pipe to communicate with a side surface of the protrusion.
KR1020160034357A 2016-03-23 2016-03-23 Mold device for hot stamping KR20170110251A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160034357A KR20170110251A (en) 2016-03-23 2016-03-23 Mold device for hot stamping

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160034357A KR20170110251A (en) 2016-03-23 2016-03-23 Mold device for hot stamping

Publications (1)

Publication Number Publication Date
KR20170110251A true KR20170110251A (en) 2017-10-11

Family

ID=60139085

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020160034357A KR20170110251A (en) 2016-03-23 2016-03-23 Mold device for hot stamping

Country Status (1)

Country Link
KR (1) KR20170110251A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108704981A (en) * 2018-05-11 2018-10-26 首钢集团有限公司 One kind being used for hot forming plate temperature measuring equipment
CN109909379A (en) * 2019-03-29 2019-06-21 重庆大学 Hot stamping forming die insert structure and its processing method
KR20200061057A (en) * 2018-11-23 2020-06-02 주식회사전우정밀 Method and Apparatus for Closing Pipe
KR20200062555A (en) * 2018-11-27 2020-06-04 주식회사전우정밀 Apparatus and method for forming metal product
WO2022065607A1 (en) * 2020-09-28 2022-03-31 (주)오토젠 Mold apparatus and mold manufacturing method for producing same
KR20230030351A (en) 2021-08-25 2023-03-06 현대제철 주식회사 Mold for hot stamping and manufacturing method of hot stamping component
KR20230031039A (en) 2021-08-26 2023-03-07 현대제철 주식회사 Mold for hot stamping and manufacturing method of hot stamping component
KR20230103427A (en) 2021-12-31 2023-07-07 현대제철 주식회사 Mold for hot stamping and manufacturing method of hot stamping component
CN116765247A (en) * 2023-05-04 2023-09-19 昆山市海雅特汽车科技有限公司 Anti-deformation metal sheet continuous stamping die
KR20230172973A (en) 2022-06-16 2023-12-26 현대제철 주식회사 Mold for hot stamping

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108704981A (en) * 2018-05-11 2018-10-26 首钢集团有限公司 One kind being used for hot forming plate temperature measuring equipment
KR20200061057A (en) * 2018-11-23 2020-06-02 주식회사전우정밀 Method and Apparatus for Closing Pipe
KR20200062555A (en) * 2018-11-27 2020-06-04 주식회사전우정밀 Apparatus and method for forming metal product
CN109909379A (en) * 2019-03-29 2019-06-21 重庆大学 Hot stamping forming die insert structure and its processing method
WO2022065607A1 (en) * 2020-09-28 2022-03-31 (주)오토젠 Mold apparatus and mold manufacturing method for producing same
KR20230030351A (en) 2021-08-25 2023-03-06 현대제철 주식회사 Mold for hot stamping and manufacturing method of hot stamping component
KR20230031039A (en) 2021-08-26 2023-03-07 현대제철 주식회사 Mold for hot stamping and manufacturing method of hot stamping component
KR20230103427A (en) 2021-12-31 2023-07-07 현대제철 주식회사 Mold for hot stamping and manufacturing method of hot stamping component
KR20230172973A (en) 2022-06-16 2023-12-26 현대제철 주식회사 Mold for hot stamping
CN116765247A (en) * 2023-05-04 2023-09-19 昆山市海雅特汽车科技有限公司 Anti-deformation metal sheet continuous stamping die
CN116765247B (en) * 2023-05-04 2023-12-01 昆山市海雅特汽车科技有限公司 Anti-deformation metal sheet continuous stamping die

Similar Documents

Publication Publication Date Title
KR20170110251A (en) Mold device for hot stamping
US8291741B2 (en) Forming tool comprising cooling duct bores branched within tool elements
US9314832B2 (en) Sheet metal member shape forming system and method
US8424356B2 (en) Deep-drawing device
CN105251892B (en) Rear axle square plate blanking-pinching-coining composite die and machining process thereof
CN105886746A (en) Induction shape correcting and die quenching and tempering technological method and equipment for annular parts
KR101115337B1 (en) Cooling and washing device of die for hot forming products and control method thereof
JP2014079790A (en) Hot press molding method and die
JP2005262440A (en) Device to thermally tighten or loosen tool in shrink chuck
US20190201965A1 (en) Hot pressing method and hot pressing system
CA2879810C (en) Fracture-splitting apparatus and fracture-splitting method for the fracture-splitting of workpieces
CN105666094A (en) Device for improving press fitting of main shaft
CN107052221B (en) A kind of hot upsetting device for automatically molding
KR101689568B1 (en) Press system
KR101734474B1 (en) Hot press forming apparatus and method thereof
CN210146805U (en) A accurate oiling device in mould for modulus of continuity
KR200485232Y1 (en) Apparatus of molding for branch type pipe and branch type thereof
KR20120066090A (en) Mold apparatus
CN209813201U (en) Auxiliary cooling device for press and press system
KR20190033385A (en) Cooling system for hot stamping mold
CN205393945U (en) Improve device of main shaft pressure equipment
CN102211122A (en) Conical spiral-reduction special-forging forming machine and forming method for pipes
KR102224344B1 (en) Method and apparatus for manufacturing hardened steel parts
KR20100061888A (en) Apparatus for increasing machining distance of vertical type machine tool
KR20070077234A (en) Hot wind nozzle

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application