EP2037547B1 - Manufacturing process of cylinder plug pins for electric connection and plug pins manufactured in this process - Google Patents

Manufacturing process of cylinder plug pins for electric connection and plug pins manufactured in this process Download PDF

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Publication number
EP2037547B1
EP2037547B1 EP20080014031 EP08014031A EP2037547B1 EP 2037547 B1 EP2037547 B1 EP 2037547B1 EP 20080014031 EP20080014031 EP 20080014031 EP 08014031 A EP08014031 A EP 08014031A EP 2037547 B1 EP2037547 B1 EP 2037547B1
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EP
European Patent Office
Prior art keywords
diameter
cylinder
height
plug pin
semi
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
EP20080014031
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German (de)
English (en)
French (fr)
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EP2037547A1 (en
Inventor
Yinda Yu
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Yu Yinda
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Individual
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Publication date
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Publication of EP2037547A1 publication Critical patent/EP2037547A1/en
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Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
    • 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
    • B21D22/14—Spinning
    • 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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets

Definitions

  • This invention relates to a manufacturing process of cylinder plug pins for electric connection on plugs and plug pins manufactured in this process.
  • EP 1 213 135 A1 discloses an index-feed processing system comprising a plurality of processing units disposed in the longitudinal feeding direction of a workpiece corresponding to a plurality of processing processes so that the processing processes are performed sequentially as the workpiece is indexed.
  • EP 0 128 990 A1 discloses a hollow cylinder to be used as a plug pin, with a round end, a portion with a reduced diameter and a collar, made from a flat blank by deep drawing.
  • the first technical problem for this invention to solve is to, targeting at the existing situation described above, provide a manufacturing process for cylinder plug pins for electric connection that can not only ensure the performances of pins, but also greatly reduce the production cost as well as plug pins made in this process.
  • a cylinder blank with the diameter of 21.5mm should be made by stamping on a feeding belt, which should then be drawn into a cylinder work piece with the diameter of 14.5mm and the height of 7.4mm, the work piece is then sent to the next position by a manipulator; after the 2 nd drawing, the diameter of the cylinder work piece is 11.6mm and the height is 11.4mm; said cylinder work piece is then drawn into one with the diameter of 9.2mm and the height of 15.5mm after the 3 nd drawing; then drawn into the diameter of 7.3mm and the height of 21.5mm after the 4 th drawing; then drawn into the diameter of 5.8mm and the height of 28mm after the 5 th drawing; and at last, it is made into a semi-finished cylinder plug pin with the diameter of 4.8mm and the height of 35mm after
  • a cylinder blank with the diameter of 20.0mm should be made by stamping on a feeding belt, which should then be drawn into a cylinder work piece with the diameter of 12.5mm and the height of 7.5mm, the work piece is then sent to the next position by a manipulator; after the 2 nd drawing, the diameter of the cylinder work piece is 10.0mm and the height is 11.5mm; said cylinder work piece is then drawn into one with the diameter of 8.0mm and the height of 16.5mm after the 3 rd drawing; then drawn into the diameter of 6.5mm and the height of 21.5mm after the 4 th drawing; then drawn into the diameter of 5.2mm and the height of 27.5mm after the 5 th drawing; and at last, it is made into a semi-finished cylinder plug pin with the diameter of 4.0mm and the height of 31.5mm after the 6 th drawing.
  • a plug pin made according to the said manufacturing process above is in the shape of a one-block hollow cylinder with cavity.
  • said drawing should be carried out for 6 times preferably, first, a cylinder blank with the diameter of 20-25mm should be made by stamping on a feeding belt, which should then be drawn into a cylinder work piece with the diameter of 12-16mm and the height of 6 ⁇ 8mm, the work piece is then sent to the next position by a manipulator; after the 2 nd drawing, the diameter of the cylinder work piece is 10-13mm and the height is 10-12mm; said cylinder work piece is then drawn into one with the diameter of 8.2 ⁇ 10.2mm and the height of 14 ⁇ 16mm after the 3 rd drawing; then drawn into one with the diameter of 5 ⁇ 8mm and the height of 20 ⁇ 23mm after the 4 th drawing; then drawn into one with the diameter of 5-7mm and the height of 27-29mm after the 5 th drawing; and at last, it is made into the cylinder semi-finished plug pin with the diameter of 4 ⁇ 5mm and the height of 28 ⁇ 36mm after the 6 th drawing.
  • said drawing should be carried out for 6 times preferably, first, a cylinder blank with the diameter of 19-21 mm should be made by stamping on a feeding belt, which should then be drawn into a cylinder work piece with the diameter of 11 ⁇ 13 mm and the height of 6 ⁇ 8 mm, the work piece is then sent to the next position by a maniputator; after the 2 nd drawing, the diameter of the cylinder work piece is 9-11mm and the height is 10 ⁇ 12 mm; said cylinder work piece is then drawn into one with the diameter of 7 ⁇ 9mm and the height of 15.5 ⁇ 17.5mm after the 3 rd drawing; then drawn into one with the diameter of 5.5 ⁇ 7.5mm and the height of 20.5 ⁇ 22.5mm after the 4 th drawing; then the drawn into one with the diameter of 4.2 ⁇ 6.2mm and the height of 26.5 ⁇ 28.5mm after the 5 th drawing; and at last, it is made into the cylinder semi-finished plug pin with the diameter of 3,5 ⁇ 4.5mm and the height of 30.5 ⁇ 32.5mm after
  • said shrinking cuff and said push pin adopt are made of alloy steel, said tool head also be alloy steel bead.
  • this invention adopts the technology combining progressive die drawing and extrusion forming by auto lathe to produce the finished plug pin conforming to the specifications, which can not only greatly reduce the production cost and save materials, but also ensure fine mechanical strengthen and conducting performance; moreover, with the shrinkage method for plug pins by a shrinking cuff, no material waste in the manufacturing process, which can both save energy sources and keep the cleanness of the workplace so as to meet the requirements of environmental protection and effectively maintain the fine mechanical strength and conductivity of the product, after tests, multiple parameters of the plug pins made in this process, including the mechanical strength and the current capacity, have achieved or even exceeded the performances of copper bar plug pins by auto lathe.
  • Embodiment 1 now we take a manufacture of a cylinder pin 1 of European plug with the diameter of 4.8mm and the height of 31.5mm as an example, the process consists of the following steps:
  • said tool carrier 8 sends the tool forwards, making the extrusion tool head 82 extrude said work piece lengthwise (or cause said alloy steel bead 81 in it for the extrusion), said extrusion tool head 82 extrude contacts with the copper tube that is rotating at a high rate, which produces high temperature and makes the copper tube annealed and softened and shrink into the required size under the extrusion.
  • the extrusion by another tool head 71 fixed on the carrier will produce a shrunk section at the center part of the semi-finished cylinder plug pin 1'.
  • plug pin 1 is in the shape of a one-block hollow cylinder with cavity 2.
  • Embodiment 2 Figure 5 and Figure 6 show the structure of a plug pin of another size made in the process according to the invention, as it is different from the plug pin 1 mentioned in the embodiment above in terms of size and appearance, it will be made by a different process.
  • This embodiment shows a plug pin 1 with the diameter of 4.0mm and the height of 28.5mm, a shrunk section is provided at the central part 13 on the outer surface.
  • this structure can only save material, but also ensure the original conducting performance and mechanical strength of the plug pin 1, moreover, after tests, multiple parameters of the plug pins made in this process, including the mechanical strength and the current capacity, have achieved or even exceeded the performances of solid copper bar plug pins by automatic lathe.
  • Plug pins of different specifications can be made in the process according to this invention and can be equipped on different carriers to be made into various plugs of different countries, including European plugs, French plugs, German plugs and English plugs, etc..
  • Embodiment 3 now we take the manufacture of a cylinder pin 1 of European plug with the diameter of 4.8mm and the height of 31.5mm as the example, the process consists of the following steps:
  • the tube shrinking cuff 9 is made of alloy steel and is fixed on the pulling board 8, during the operation, move the pull board 8 to the end of the semi-finished plug pin 1' and insert in the plug pin, then proceed to advance leftwards, the tapered hole 92 in the shrinking cuff 9 extrudes the end of the semi-finished plug pin 1 to shrink the end of the semi-finished plug pin 1', see figure 10 .
  • said push pin 91 is tapered and made in alloy steel.
  • a hollow integral finished plug pin 1 can be made following the process above, which both saves materials and can ensure the original conductivity and mechanical strength of the plug pin 1, after tests, multiple parameters of the plug pins made in this process, including the mechanical strength and the current capacity, have achieved or even exceeded the performances of copper bar plug pins by auto lathe.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Forging (AREA)
EP20080014031 2007-09-11 2008-08-05 Manufacturing process of cylinder plug pins for electric connection and plug pins manufactured in this process Expired - Fee Related EP2037547B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2007100711304A CN100502171C (zh) 2007-09-11 2007-09-11 用于电连接的圆柱形插针的制作工艺

Publications (2)

Publication Number Publication Date
EP2037547A1 EP2037547A1 (en) 2009-03-18
EP2037547B1 true EP2037547B1 (en) 2011-10-26

Family

ID=39160448

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080014031 Expired - Fee Related EP2037547B1 (en) 2007-09-11 2008-08-05 Manufacturing process of cylinder plug pins for electric connection and plug pins manufactured in this process

Country Status (3)

Country Link
EP (1) EP2037547B1 (zh)
CN (1) CN100502171C (zh)
ES (1) ES2373609T3 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101081022B1 (ko) 2011-06-14 2011-11-09 이완규 중공형 파워플러그핀의 냉간단조 제조장치 및 제조방법

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101330188B (zh) * 2008-07-01 2010-06-02 虞寅达 用于电连接的圆柱形插针的制作方法
CN101719617B (zh) * 2008-10-09 2013-12-04 陈志锋 电源电极产品的制造工艺及专用设备
DE102012002350A1 (de) 2011-07-20 2013-01-24 Bals Elektrotechnik Gmbh & Co. Kg Kontaktelement für eine elektrische Steckverbindervorrichtung
CN102801080B (zh) * 2012-08-02 2016-08-10 慈溪市绿绿电子有限公司 一种用于数字转输连接端子圆柱形插针件的制作工艺
CN102832526B (zh) * 2012-09-17 2015-07-22 遵义市飞宇电子有限公司 一种插针组合件加工方法
CN106532311B (zh) * 2016-12-22 2018-09-25 虞东升 圆柱形插脚及其插头
CN107834243A (zh) * 2017-11-02 2018-03-23 江苏和飞航天电子有限公司 一种新型端面接触排插端子
CN109205244A (zh) * 2018-10-09 2019-01-15 凯尔信汽车零部件（京山）有限公司 一种扎带装配用的物料预插剪切装置
CN112490820B (zh) * 2020-10-20 2022-05-06 常州市史美尔精密机械科技有限公司 一种连接器金属件的机床加工工艺
CN112864762A (zh) * 2020-12-22 2021-05-28 深圳市巴科光电科技股份有限公司 一种用于led显示屏连接器的双工位折弯机构
CN112756913B (zh) * 2020-12-28 2023-01-06 成都爱美科科技材料有限公司 一种用于玻璃纤维生产的贵金属漏板的漏嘴制备方法
CN116191163B (zh) * 2023-05-04 2023-07-07 江西海桦电子有限公司 一种插针成型机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4434552A (en) * 1982-03-01 1984-03-06 The Bendix Corporation Method of making a pin type electrical connector contact
EP0128990A1 (fr) 1983-06-21 1984-12-27 Cemrep Broche conductrice pour fiche de courant électrique
US4820207A (en) * 1985-12-31 1989-04-11 Labinal Components And Systems, Inc. Electrical contact
JP4745481B2 (ja) 2000-02-15 2011-08-10 株式会社放電精密加工研究所 順送り加工装置
KR100475838B1 (ko) * 2002-05-01 2005-03-10 유태승 전원플러그용 봉형 전극봉의 제조방법과 금형

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101081022B1 (ko) 2011-06-14 2011-11-09 이완규 중공형 파워플러그핀의 냉간단조 제조장치 및 제조방법

Also Published As

Publication number Publication date
ES2373609T3 (es) 2012-02-07
EP2037547A1 (en) 2009-03-18
CN101136532A (zh) 2008-03-05
CN100502171C (zh) 2009-06-17

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