KR970061395A - METHOD AND APPARATUS FOR MANUFACTURING COMPOSITE DOUBLE CYLINDRICAL PULLEY USING COLD FORGING - Google Patents

METHOD AND APPARATUS FOR MANUFACTURING COMPOSITE DOUBLE CYLINDRICAL PULLEY USING COLD FORGING Download PDF

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Publication number
KR970061395A
KR970061395A KR1019960003236A KR19960003236A KR970061395A KR 970061395 A KR970061395 A KR 970061395A KR 1019960003236 A KR1019960003236 A KR 1019960003236A KR 19960003236 A KR19960003236 A KR 19960003236A KR 970061395 A KR970061395 A KR 970061395A
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South Korea
Prior art keywords
die
punch
outer ring
raw material
metal
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KR1019960003236A
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Korean (ko)
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KR100219234B1 (en
Inventor
정덕진
김기홍
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정훈보
주식회사 풍 산
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Priority to KR1019960003236A priority Critical patent/KR100219234B1/en
Publication of KR970061395A publication Critical patent/KR970061395A/en
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Publication of KR100219234B1 publication Critical patent/KR100219234B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/28—Making machine elements wheels; discs
    • B21K1/42—Making machine elements wheels; discs pulleys, e.g. cable pulleys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/12—Forming profiles on internal or external surfaces

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

본 발명은 자동차의 에어콘에 사용되는 콤퓨레샤용 클러치와 같이 복합 이중원통형상을 갖는 제품의 제조방법 및 장치에 관한 것으로, 더욱 상세하게는 다이내부에 공급된 피가공물인 냉간단조물을 펀치(Punch)로 가압하여 소성변형시키므로 펀치하부에 형성되는 내측링(Ring)과 외측링 부위의 경도가 균일하게 형성됨과 동시이들 내, 외측링의 길이가 동일하게 형성되고, 펀치상부에 형성되는 외측링도 상기 내, 외측링과 같이 균일한 경도와 일정한 길이로 성형될 수 있도록 한 냉간단조를 이용한 복합 이중원통형상 풀리의 제조방법 및 장치에 관한 것이다. 이를 위한 본 발명의 제조방법은 프레스금형의 다이내에 설치된 카운터펀치위에 원소재를 올려놓고 펀치를 하강시키면 원소재가 소성 변형을 일으키면서 소재의 유동특성상 상부펀치부로 먼저 유동된다는 점을 이용하여 상기와 같은 방법으로 상부외측링부위를 먼저 성형하고 난후, 카운터펀치와 멘드렐사이의 공간으로 소재가 유동되어 하부 내,외측링부를 형성시키게 되며, 상기 다이 및 펀치에 형성된 단턱부에 의해 하부외측링부로 흐르는 금속의 유동이 제어되어 하부내 외측링부가 동일한 길이로 성형됨과 동시에 상부외측링과 하부내,외측링이 균일한 경도를 갖으면서 동시에 성형되도록 한 것이다. 또한, 본 발명의 제조장치는 원소재가 올려지는 다이와, 상기 다이내에 설치되어 폴리의 내, 외측링부를 성형하는 공간이 되는 내측공간 및 외측공간을 구비하는 카운터펀치와, 원소재를 가압하여 소성변형을 일으키며 상부외측링부의 길이를 일정하게 유지해주는 역할을 하는 상부펀치 및, 상기 다이에 형성되어 원소재의 성형시 외측으로 흐르는 금속의 유동속도를 감소시켜 주는 단턱이 구비된 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for manufacturing a product having a complex double cylindrical shape such as a clutch for a compressor for use in an automobile air conditioner, So that the hardness of the inner ring and the outer ring portion formed at the lower portion of the punch are uniformly formed and at the same time, the lengths of the inner and outer rings are formed to be the same, and the outer ring formed at the upper portion of the punch And more particularly, to a method and an apparatus for manufacturing a composite double cylindrical type pulley using a cold forging so that the inner and outer rings can be formed into a uniform hardness and a constant length. The manufacturing method of the present invention is characterized in that, when a raw material is placed on a counter punch installed in a die of a press die and the punch is lowered, the raw material is firstly flowed to the upper punch part due to the flow characteristics of the material, After the upper outer ring portion is formed in the same manner as described above, the material flows into the space between the counter punch and the mandrel to form the inner and outer ring portions. By the step portion formed in the die and the punch, The flow of the flowing metal is controlled so that the lower inner and outer ring portions are formed to have the same length and at the same time the upper outer ring and the lower inner and outer rings are formed at the same time with uniform hardness. In addition, the manufacturing apparatus of the present invention comprises: a die on which a raw material is placed; a counter punch provided in the die and having an inner space and an outer space serving as spaces for molding the inner and outer ring portions of the poly; An upper punch which serves to keep the length of the upper outer ring part constant while causing deformation, and a step formed on the die to reduce the flow speed of the metal flowing outward when the raw material is molded.

Description

냉간단조를 이용한 복합 이중원통형상 풀리의 제조방법 및 장치.Method and apparatus for manufacturing a composite double cylindrical pulley using cold forging.

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도의(a)(b)는 구멍이 없는 복합 이중원통형상 폴리 단면도와저면도.1 (a) and 1 (b) show a double-cylindrical poly-sectional view and a bottom view without a hole.

제2도의 (a)(b)는 구멍이 있는 복합 이중원통향상 풀리의 단면도와 저면도 .FIG. 2 (a) and FIG. 2 (b) are a cross-sectional view and a bottom view of a double-cylinder, incremental pulley with a hole.

제3도는 구멍이 없는 복합 이중원통형상 풀리에 사용되는 원소재의 단면도.FIG. 3 is a cross-sectional view of a raw material used in a composite dual cylindrical pulley without holes; FIG.

제4도는 구멍이 있는 복합 이중원통형상 풀리에 사용되는 원소재의 단면도.FIG. 4 is a cross-sectional view of a raw material used for a composite dual cylindrical pulley with a hole; FIG.

Claims (5)

금형조립체의 다이내에 설치된 카운터펀치위에 원소재를 올려놓고 펀치를 하강시킴에 따라 원소재가 소성변형을 일으키면서 상부펀치와 다이사이의 공간으로 유동하여 상부외측링부가 형성되고, 다이와 카운터펀치사이의 공간으로도 금속이 유동하여 하부내, 외측링부가 형성되며, 상기 펀치부에 형성된 단턱부의 영향으로 금속의 유동방향과 속도가 바뀌어 다이에 형성된 단턱부의 영향으로 금속의 유동속도가 제어되므로서 상부에 외측링부가 있고 하부에 동일한 길이의 내 외측링부가 있으면서 경도가 균일한 복합 이중원통영상 풀리가 성형됨을 특징으로 하는 냉각단조를 이용한 이중원통영상 풀리의 제조방법.The raw material is placed on the counter punch installed in the die assembly and the punch is lowered so that the raw material flows to the space between the upper punch and die due to the plastic deformation to form the upper outer ring portion, The flow direction of the metal and the speed of the metal are changed due to the influence of the step formed in the punch portion so that the flow rate of the metal is controlled by the influence of the step formed on the die, Wherein a composite double cylinder image pulley having an outer ring portion and an inner and outer ring portion of the same length at the lower portion and having a uniform hardness is molded. 원소재가(20)가 올려지는 다이(30)와; 상기 다이내에 설치되어 복합 이중원통형상 풀리(10)의 하부내, 외측링부(13)(14)의 성형공간이 되는 내측공간(41)과 외측공간(42)을 구비하는 카운터펀치(40)와; 원소재가 소성 변형을 일으키도록 가압하여 상부외측링(12)을 일정하게 형성해주는 펀치(50)와; 상기 다이에 형성되어 원소재의 성형시 내측으로 흐르는 금속의 유동속도를 감소시켜주며 풀리(10)에 연장턱부(15)를 형성하는 단턱(31)과; 상기 펀치에 형성되어 상부로 흐르는 금속의 유동방향을 바꾸어 주는 역할을 하는 단턱(51)을 구비하여서 됨을 특징으로 하는 냉각단조를 이용한 복합 이중원통형상풀리의 제조장치.A die 30 on which the raw material 20 is lifted; A counter punch 40 having an inner space 41 and an outer space 42 which are provided in the above-mentioned cage and form a molding space of the lower and outer ring portions 13 and 14 of the complex double cylindrical pulley 10, ; A punch 50 for pressing the raw material to cause plastic deformation to form the upper outer ring 12 uniformly; A step (31) formed on the die to reduce the flow velocity of the metal flowing inward during the forming of the raw material and forming an elongated jaw (15) in the pulley (10); And a step (51) formed on the punch and acting to change a flow direction of the metal flowing upward. 제2항에 있어서, 상기 다이(30)는 원소재(20)의 성형시 성형력에 의한 외부로의 팽창응력과 피로파괴를 방지하기 위해 외부에 설치된 구조용 합금강 재질의 다이링(60) 및, 성형력에 견딜 수 있는 공구강재질의 다이인서트(70)로 구성된 것임을 특징으로 하는 냉간단조를 이용한 복합 이중원통형상 풀리의 제조장치.The die (30) according to claim 2, wherein the die (30) comprises a die ring (60) made of a structural alloy steel material provided on the outside in order to prevent expansion stress and fatigue breakage to the outside due to forming force during molding of the raw material (20) And a die insert (70) made of a tool steel capable of withstanding a forming force. 제2항에 있어서, 상기 다이(30)의 단턱(31)은 하부내측링부로 흐르는 금속의 유동속도를 감소시켜 주기 위하여 카운터펀치(40)보다 높은 위치에 형성된 것임을 특징으로 하는 냉각단조를 이용한 복합 이중원통영상 풀리의 제조장치.3. The method of claim 2, wherein the step (31) of the die (30) is formed at a higher position than the counter punch (40) to reduce the flow rate of metal flowing to the lower inner ring Apparatus for manufacturing dual cylindrical image pulleys. 제2항에 있어서, 상기 다이(30)의 단턱(31)은 하부내측링부로 흐르는 금속의 유동속도를 감소시켜 주기 위하여 카운터펀치(40)보다 낮은 위치에 형성된 것임을 특징으로 하는 냉간단조를 이용한 복합 이중원통영상 풀리의 제조장치.3. The method of claim 2, wherein the step (31) of the die (30) is formed at a lower position than the counter punch (40) to reduce the flow rate of metal flowing to the lower inner ring Apparatus for manufacturing dual cylindrical image pulleys. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960003236A 1996-02-10 1996-02-10 Manufacturing method and device for complex double cylinder-shape pully by cold forging KR100219234B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960003236A KR100219234B1 (en) 1996-02-10 1996-02-10 Manufacturing method and device for complex double cylinder-shape pully by cold forging

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Application Number Priority Date Filing Date Title
KR1019960003236A KR100219234B1 (en) 1996-02-10 1996-02-10 Manufacturing method and device for complex double cylinder-shape pully by cold forging

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KR970061395A true KR970061395A (en) 1997-09-12
KR100219234B1 KR100219234B1 (en) 1999-09-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100704997B1 (en) * 2006-04-05 2007-04-09 한국기계연구원 Air cylinder need not bearing and seal
KR100704999B1 (en) * 2006-04-05 2007-04-09 한국기계연구원 Air cylinder not seal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101450779B1 (en) * 2014-07-24 2014-10-17 (주)신영유니크 Forging Manufacturing DeviceF For Vehicle Pully

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100704997B1 (en) * 2006-04-05 2007-04-09 한국기계연구원 Air cylinder need not bearing and seal
KR100704999B1 (en) * 2006-04-05 2007-04-09 한국기계연구원 Air cylinder not seal

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