WO2023138277A1 - Matrice combinée conjointe de forgeage et flambage inverse pour forgeage de grande manivelle de vilebrequin - Google Patents

Matrice combinée conjointe de forgeage et flambage inverse pour forgeage de grande manivelle de vilebrequin Download PDF

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Publication number
WO2023138277A1
WO2023138277A1 PCT/CN2022/139731 CN2022139731W WO2023138277A1 WO 2023138277 A1 WO2023138277 A1 WO 2023138277A1 CN 2022139731 W CN2022139731 W CN 2022139731W WO 2023138277 A1 WO2023138277 A1 WO 2023138277A1
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WO
WIPO (PCT)
Prior art keywords
die
forging
combined
conjoined
anvil
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Application number
PCT/CN2022/139731
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English (en)
Chinese (zh)
Inventor
张连华
郑介林
张晖
Original Assignee
中聚信海洋工程装备有限公司
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Application filed by 中聚信海洋工程装备有限公司 filed Critical 中聚信海洋工程装备有限公司
Publication of WO2023138277A1 publication Critical patent/WO2023138277A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • 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
    • B21K1/06—Making machine elements axles or shafts
    • B21K1/08—Making machine elements axles or shafts crankshafts

Definitions

  • the present application relates to a combined reverse buckle forging die, in particular to a combined forging die with reverse buckle above a forging, which belongs to the technical field of mechanical manufacturing.
  • the bellcrank is the main part to transform the movement form. Because of its large and complex force, it must have sufficient rigidity, strength and ability to withstand impact loads. In order to meet the above performance requirements, forged bellcranks are usually used.
  • Forging crankshafts generally requires processes such as jaw pressing, upsetting, billet drawing, grooving, bending, and shape finishing. Different processes require different anvil molds. In the traditional large-scale forging crankshaft process, the anvil molds are mostly set alone, and the anvil molds are set and combined unreasonably. Therefore, the number of anvil molds is large and takes up a lot of space. The process of replacing anvil molds is complicated and takes a long time. , High cost.
  • This application proposes a combined conjoined reverse buckle forging die for forging large crankshafts. Multiple forging dies with different functions are arranged on the same die body, and the forging workpiece is reversely buckled to complete multiple processes without replacing the die body, thereby achieving the purpose of less number of times in the forging process and high production efficiency.
  • the combined conjoined reverse buckle forging die may include a mold body and a mold, and is characterized in that:
  • the model can include: a replacement anvil die and a bending die;
  • the replacement anvil die and the bending die can be arranged on the same mold body, and the die mouth of the replacement anvil die and the die mouth of the bending die are adjacently arranged in the same direction;
  • the replacement anvil die can be an open die, and its internal shape is the same as the upper part of the forging;
  • the bending die can be a splayed opening die, and the inner wall of the splayed shape is an arc surface.
  • the opening die can be reversely buckled on the forging.
  • the contact between the arc surface and the forging is the initial crimping line.
  • the arc length of the rolling arc surface may be the bending stroke.
  • a special clamping handle may be provided on the mold body.
  • the bending die can bend the forging into a herringbone shape, and the top angle of the herringbone shape can be set between 90° and 110°.
  • the pressing stroke can be set to be ⁇ 95% of the bending stroke and ⁇ 70% of the bending stroke.
  • a plurality of molds with different shapes and different functions are set on the same mold body, and different forging processes can be implemented on the forgings only by changing the position of the mold body, thereby saving the time for changing the anvil mold, so that the forgings can complete multiple forging steps in the same fire.
  • the design of this application is scientific and reasonable, and at least has the advantages of high efficiency, saving mold materials, and saving energy.
  • 1 is a mold body
  • 2 is a manipulator
  • 3 is a clamping handle
  • 4 is a trapezoidal mold
  • 5 is a bottom anvil
  • 6 is a prefabricated part
  • 7 is an upper anvil
  • 8 is a die
  • 101 is a replacement anvil mold
  • 102 is a bending mold.
  • a replacement anvil die 101 and a bending die 102 are adjacently arranged on the die body 1, and the die mouth direction of the replacement anvil die 101 and the bending die 102 is arranged in the same direction, and one end of the die body 1 is provided with a clamping handle 3.
  • the trapezoidal mold 4 is placed on the bottom anvil, the preform 6 is placed on the top of the trapezoidal mold 4, the replacement anvil mold 101 is placed between the preform 6 and the upper anvil 7, the upper anvil 7 presses down, and the trapezoidal mold 4 forges the lower part of the preform 6 into a trapezoidal groove.
  • the original shape remains unchanged.
  • the manipulator 2 clamps the clamping handle 3, and moves the mold body 1 from the position shown in the accompanying drawing 2 to the position shown in the accompanying drawing 3, so that the trapezoidal mold 102 is placed between the preform 6 and the upper anvil 7, and the upper anvil 7 presses down, and the trapezoidal mold 102 squeezes the two arms of the preform 6. Since the inner surface of the trapezoidal mold 102 is set as an arc surface, the arc surface and the arms of the preform 6 are always linearly contacted and squeezed, so that the two arms of the preform 6 are constantly approaching each other, and finally bent into the state shown in Figure 4.
  • the application relates to a combined conjoined reverse buckle forging die for forging large crank crutches.
  • the replacement anvil die and the bending die are adjacently arranged on the same die body.
  • the inner shape of the replacement anvil die is the same as that of the upper part of the forging.
  • the combined conjoined reverse buckle forging die of the present application can implement different forging processes on the forgings only by changing the position of the die body, which saves the time for replacing the anvil dies, and enables the forgings to complete multiple forging steps in the same fire.
  • the design of this application is scientific and reasonable, and at least has the advantages of high efficiency, saving mold materials, and saving energy.
  • the combined conjoined reverse buckle forging die and the like of the present application are reproducible and can be applied in various industrial applications.
  • the combined conjoined reverse buckle forging die of the present application can be applied to the technical field of mechanical manufacturing.

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

Abstract

La présente demande concerne une matrice combinée conjointe de forgeage et flambage inverse pour forgeage d'une grande manivelle de vilebrequin. Une matrice de remplacement d'enclume et une matrice de cintrage sont agencées de manière adjacente sur le même corps de matrice, une forme interne de la matrice de remplacement d'enclume étant la même qu'une partie supérieure d'un organe de forge ; et la matrice de cintrage est une matrice à ouverture évasée, une paroi latérale interne évasée étant une surface bombée devant être flambée de manière inverse sur l'organe de forge, et les positions de contact entre la surface bombée et l'organe de forge étant une ligne de pressage initiale et une ligne de pressage finale. Au moyen de la matrice combinée conjointe de forgeage et flambage inverse dans la présente demande, différents processus de forgeage peuvent être mis en œuvre sur l'organe de forge uniquement par la modification de la position du corps de matrice, et le temps de remplacement d'une matrice d'enclume est économisé, de telle sorte que l'organe de forge achève de multiples étapes de travail de forgeage dans le même nombre de chauffage. La présente demande est scientifique et rationnelle en termes de conception, et possède au moins les avantages d'être élevée en termes d'efficacité, apte à d'économiser des matériaux de matrice, apte à économiser de l'énergie, etc.
PCT/CN2022/139731 2022-01-20 2022-12-16 Matrice combinée conjointe de forgeage et flambage inverse pour forgeage de grande manivelle de vilebrequin WO2023138277A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202220153155.9U CN216729359U (zh) 2022-01-20 2022-01-20 一种锻制大型曲拐的组合连体反扣锻模
CN202220153155.9 2022-01-20

Publications (1)

Publication Number Publication Date
WO2023138277A1 true WO2023138277A1 (fr) 2023-07-27

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PCT/CN2022/139731 WO2023138277A1 (fr) 2022-01-20 2022-12-16 Matrice combinée conjointe de forgeage et flambage inverse pour forgeage de grande manivelle de vilebrequin

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CN (1) CN216729359U (fr)
WO (1) WO2023138277A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023071375A1 (fr) * 2021-10-28 2023-05-04 中聚信海洋工程装备有限公司 Matrice d'enclume combinée pour forger un grand coude de vilebrequin
CN216729359U (zh) * 2022-01-20 2022-06-14 中聚信海洋工程装备有限公司 一种锻制大型曲拐的组合连体反扣锻模

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1947886A (zh) * 2006-11-01 2007-04-18 中国科学院金属研究所 大型船用曲轴曲拐的弯曲锻造装置及锻造方法
KR20120069129A (ko) * 2010-12-20 2012-06-28 현대중공업 주식회사 크랭크 쓰로우 제조 장치 및 그 제조 방법
CN212551545U (zh) * 2020-05-15 2021-02-19 苏州强隆铸锻有限公司 一种模锻精整组合模具
CN213944745U (zh) * 2020-10-20 2021-08-13 晋西车轴股份有限公司 一种锻造模具
CN214236120U (zh) * 2020-12-31 2021-09-21 山东华源索具有限公司 双耳绞生产加工模具
CN113926973A (zh) * 2021-10-28 2022-01-14 中聚信海洋工程装备有限公司 一种锻造大型曲拐的组合砧模及工艺
CN216729359U (zh) * 2022-01-20 2022-06-14 中聚信海洋工程装备有限公司 一种锻制大型曲拐的组合连体反扣锻模

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1947886A (zh) * 2006-11-01 2007-04-18 中国科学院金属研究所 大型船用曲轴曲拐的弯曲锻造装置及锻造方法
KR20120069129A (ko) * 2010-12-20 2012-06-28 현대중공업 주식회사 크랭크 쓰로우 제조 장치 및 그 제조 방법
CN212551545U (zh) * 2020-05-15 2021-02-19 苏州强隆铸锻有限公司 一种模锻精整组合模具
CN213944745U (zh) * 2020-10-20 2021-08-13 晋西车轴股份有限公司 一种锻造模具
CN214236120U (zh) * 2020-12-31 2021-09-21 山东华源索具有限公司 双耳绞生产加工模具
CN113926973A (zh) * 2021-10-28 2022-01-14 中聚信海洋工程装备有限公司 一种锻造大型曲拐的组合砧模及工艺
CN216729359U (zh) * 2022-01-20 2022-06-14 中聚信海洋工程装备有限公司 一种锻制大型曲拐的组合连体反扣锻模

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