US3089532A - Dies for crimping electrical connectors - Google Patents
Dies for crimping electrical connectors Download PDFInfo
- Publication number
- US3089532A US3089532A US10330A US1033060A US3089532A US 3089532 A US3089532 A US 3089532A US 10330 A US10330 A US 10330A US 1033060 A US1033060 A US 1033060A US 3089532 A US3089532 A US 3089532A
- Authority
- US
- United States
- Prior art keywords
- die
- dies
- crimping
- electrical connectors
- ferrule
- 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 - Lifetime
Links
- 238000002788 crimping Methods 0.000 title description 14
- 239000004020 conductor Substances 0.000 description 11
- 239000002184 metal Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000005028 tinplate Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/058—Crimping mandrels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
Definitions
- crimping dies have had serious disadvantages, particularly when used on large-sized conductors, -i.e., 4/0 and larger. It has been observed that it has been particularly difiieult to crimp terminals of this size because of the difficulty in the uniform reduction of wires, breakthrough of the tin plate, formation of metal flash, and deformation of the indenter. It is an object of this invention to provide a crimping die for electrical connectors which will eliminate these undesirable characteristics. It is also an object of this invention to provide a crimping die which has a rounded crimping nest and a crimping indenter which is round in the middle and flat on the outer edges.
- FIGURE 1 is a perspective view of a set of dies embodying the principles of this invention
- FIGURE 2 is a front plan view of the dies shown in FIGURE 1 with a ferrule-type connector inserted therebetween;
- FIGURE 3 is a sectional view taken through plane 33 of FIGURE 4, illustrating the dies and connectors of FIGURE 2 in crimped relationship;
- FIGURE 4 is a top plan view showing an electrical connector crimped onto a conductor with the die members shown in phantom;
- FIGURE 5 is a view similar to FIGURE 4 showing a different embodiment
- FIGURE 6 is a side view of FIGURE 5.
- the die set is comprised of a lower die It and an upper die 12 (FIGURE 1).
- the bottom die may be considered a nest and has an arcuate working surface 14 which has a radius larger than the ferrule member 16.
- the working surface has a pair of opposed side surfaces 18 and 20.
- a die holding member 22 is secured to the die to mount the die in a crimping tool.
- the upper die may be termed an indenter.
- the die surface has an inner radial surface 24 which is equal to the working surface 14.
- a pair of lands 26 and 28 project outwardly from the arcuate surface 24.
- the width of the indenting die is slightly less than the distance between the opposed working surfaces 18 and 2% of the nest. Thus the indenting die fits snugly into the nest (FIGURE 3).
- Another pair of lands 3d and 32 extends from the sides of the indenting die, and in the assassa Fatented May 14, 1963 closed position abut the top of the nest to prevent overcrimping.
- the conductor When it is desired to crimp a ferrule and conductor in the dies, the conductor is inserted into the ferrule and the ferrule placed between the dies. The dies are brought together until the lands 3i) and 32 abut the top of the working surfaces 18 and 20 (FIGURE 3). As shown in FIGURE 3, the fiat land surfaces and 28 cause deformation of the outer strands of the conductor within the ferrule. The round working surface 24 causes the same deformation of wire strands in the central portion of the conductor. The over-all effect is to provide a crimped section 4 having a uniform deformation of wire strands throughout the crimped cross-section.
- the smooth, gentle design of the indenting die from the flat land portions 26 and 23 through the larger arcuate working surface 24 prevents the crimping pressure from springing the U-shaped indenting die and causing it to fracture after repeated crimping. Additionally, the tin plate on the outside of the erimpe-d ferruie is not punctured or disturbed. The configuration of the crimped section does not provide any flashed surfaces of metal which would be harmful in an electrical connection.
- FIGURES 5 and 6 The form or embodiment of the invention shown in FIGURES 5 and 6 is similar to that shown in FIGURES 1 and 4.
- a pair of axially disposed die surfaces is provided which effect spaced, crimped sections 42, 44.
- the crimp may be made in two stages, making each crimp separately.
- the metal at each end of the crimped connection is extruded, causing a considerable increase in the tensile strength of the connection.
- a die set for crimping ferrule-type connectors onto conductors including: a first nesting die having a concave arcuate bottom working surface and oppose-d side surfaces tangent to the extremities and forming a continuation of said arcuate working surface, a second indenting die having opposed side surfaces narrower than the opposed side surfaces of the nesting die, an intermediate concave arcuate working surface between the opposed side surfaces of the indenting die, and a pair of parallel lands on the indenting die adapted to relieve stress concentration on the indenting die and distribute the crimping force more evenly through the connector, said lands being coplanar and disposed so that one land is on each side of the arcuate working surface and extends from an edge of the arcuate working surface to one of the opposed side surfaces, whereby the connector may be crimped onto the conductor Without the formation of sharp side edges.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL261431D NL261431A (ar) | 1960-02-23 | ||
NL121045D NL121045C (ar) | 1960-02-23 | ||
US10330A US3089532A (en) | 1960-02-23 | 1960-02-23 | Dies for crimping electrical connectors |
DEA36711A DE1129200B (de) | 1960-02-23 | 1961-02-11 | Pressgesenk zum Andruecken von Verbindungs-klemmen mit zylindrischem Zwingenteil undVerbindungsklemme |
GB5218/61A GB898428A (en) | 1960-02-23 | 1961-02-13 | Improvements in die sets for crimping electrical connectors and in electrical connections made with such die sets |
FR853438A FR1282395A (fr) | 1960-02-23 | 1961-02-21 | Outils pour sertir des viroles |
CH209261A CH397032A (de) | 1960-02-23 | 1961-02-22 | Verfahren zum Andrücken eines zylindrischen Zwingenteiles an ein elektrisches Kabel, Presse zur Durchführung des Verfahrens und nach dem Verfahren hergestellte Verbindung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10330A US3089532A (en) | 1960-02-23 | 1960-02-23 | Dies for crimping electrical connectors |
Publications (1)
Publication Number | Publication Date |
---|---|
US3089532A true US3089532A (en) | 1963-05-14 |
Family
ID=21745236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10330A Expired - Lifetime US3089532A (en) | 1960-02-23 | 1960-02-23 | Dies for crimping electrical connectors |
Country Status (5)
Country | Link |
---|---|
US (1) | US3089532A (ar) |
CH (1) | CH397032A (ar) |
DE (1) | DE1129200B (ar) |
GB (1) | GB898428A (ar) |
NL (2) | NL121045C (ar) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003078861A1 (de) * | 2002-03-15 | 2003-09-25 | Ac-Tec Gmbh | Verfahren zur herstellung einer drahtseil-pressverbindung |
CN107026379A (zh) * | 2017-06-05 | 2017-08-08 | 芜湖侨云友星电气工业有限公司 | 一种线束端子压接头 |
USD990999S1 (en) * | 2021-06-24 | 2023-07-04 | Hanlong Industrial Co., Ltd. | Crimping die |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2242280A (en) * | 1939-02-24 | 1941-05-20 | Adams Alfred Henry | Swedging tool |
US2426492A (en) * | 1943-11-15 | 1947-08-26 | Burndy Engineering Co Inc | Compression die |
US2534867A (en) * | 1945-01-11 | 1950-12-19 | Western Electric Co | Method of applying binding elements to cords |
US2732615A (en) * | 1956-01-31 | sandberg | ||
US2802257A (en) * | 1949-02-01 | 1957-08-13 | Amp Inc | Method of forming an electrical connection |
US2837135A (en) * | 1953-11-03 | 1958-06-03 | Amp Inc | Rotary turret head for crimping tools |
US2965147A (en) * | 1954-07-06 | 1960-12-20 | Amp Inc | Crimping methods and apparatus |
-
0
- NL NL261431D patent/NL261431A/xx unknown
- NL NL121045D patent/NL121045C/xx active
-
1960
- 1960-02-23 US US10330A patent/US3089532A/en not_active Expired - Lifetime
-
1961
- 1961-02-11 DE DEA36711A patent/DE1129200B/de active Pending
- 1961-02-13 GB GB5218/61A patent/GB898428A/en not_active Expired
- 1961-02-22 CH CH209261A patent/CH397032A/de unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2732615A (en) * | 1956-01-31 | sandberg | ||
US2242280A (en) * | 1939-02-24 | 1941-05-20 | Adams Alfred Henry | Swedging tool |
US2426492A (en) * | 1943-11-15 | 1947-08-26 | Burndy Engineering Co Inc | Compression die |
US2534867A (en) * | 1945-01-11 | 1950-12-19 | Western Electric Co | Method of applying binding elements to cords |
US2802257A (en) * | 1949-02-01 | 1957-08-13 | Amp Inc | Method of forming an electrical connection |
US2837135A (en) * | 1953-11-03 | 1958-06-03 | Amp Inc | Rotary turret head for crimping tools |
US2965147A (en) * | 1954-07-06 | 1960-12-20 | Amp Inc | Crimping methods and apparatus |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003078861A1 (de) * | 2002-03-15 | 2003-09-25 | Ac-Tec Gmbh | Verfahren zur herstellung einer drahtseil-pressverbindung |
EP1353088A1 (de) * | 2002-03-15 | 2003-10-15 | ABCO-Hydraulik GmbH | Verfahren zur Herstellung einer Drahtseil-Pressverbindung |
US20060156532A1 (en) * | 2002-03-15 | 2006-07-20 | Andreas Kock | Method of production of a cable press connection |
CN107026379A (zh) * | 2017-06-05 | 2017-08-08 | 芜湖侨云友星电气工业有限公司 | 一种线束端子压接头 |
USD990999S1 (en) * | 2021-06-24 | 2023-07-04 | Hanlong Industrial Co., Ltd. | Crimping die |
Also Published As
Publication number | Publication date |
---|---|
CH397032A (de) | 1965-08-15 |
GB898428A (en) | 1962-06-06 |
NL261431A (ar) | |
DE1129200B (de) | 1962-05-10 |
NL121045C (ar) |
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