US3833993A - Crimping apparatus - Google Patents

Crimping apparatus Download PDF

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Publication number
US3833993A
US3833993A US00252792A US25279272A US3833993A US 3833993 A US3833993 A US 3833993A US 00252792 A US00252792 A US 00252792A US 25279272 A US25279272 A US 25279272A US 3833993 A US3833993 A US 3833993A
Authority
US
United States
Prior art keywords
funnel
cam
assembly
crimping
pin
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
Application number
US00252792A
Other languages
English (en)
Inventor
W Kremkau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TE Connectivity Corp
Original Assignee
AMP Inc
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 AMP Inc filed Critical AMP Inc
Priority to US00252792A priority Critical patent/US3833993A/en
Priority to CA169,612A priority patent/CA981432A/en
Priority to IT23599/73A priority patent/IT984240B/it
Priority to AU54962/73A priority patent/AU5496273A/en
Priority to GB2061773A priority patent/GB1387953A/en
Priority to DE2322514A priority patent/DE2322514C2/de
Priority to NL7306523A priority patent/NL7306523A/xx
Priority to BE131046A priority patent/BE799448A/xx
Priority to BR3458/73A priority patent/BR7303458D0/pt
Priority to ES414674A priority patent/ES414674A1/es
Priority to SE7306726A priority patent/SE376124B/xx
Priority to AR247996A priority patent/AR194454A1/es
Priority to FR7317243A priority patent/FR2184775B1/fr
Priority to JP48053070A priority patent/JPS4949181A/ja
Application granted granted Critical
Publication of US3833993A publication Critical patent/US3833993A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R43/04—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
    • H01R43/0585—Crimping mandrels for crimping apparatus with more than two radially actuated mandrels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/532—Conductor
    • Y10T29/53209—Terminal or connector
    • Y10T29/53213—Assembled to wire-type conductor
    • Y10T29/53235—Means to fasten by deformation

Definitions

  • crimping terminal contacts onto electrical wires or leads as such are known as in the art, is well developed'as exemplified by US. Pat. No. 3,416,213 among many others.
  • the crimping Y art includes the steps of placing a contact between crimping dies or indentors, inserting a prepared electrical lead into the barrel of the contact and crimping it firmly onto the lead.
  • the .depth of crimp can be controlled simply by the amount of pressure applied.
  • a hand tool of this type can crimp a rather large range of sizes of leads and terminals.
  • the amount of crimp i.e., the depth the dies or indentors advance, is not as versatile. This means then that an automatic or semiautomatic apparatus can be used for different lead and contact sizes by changing out the indentors and the mechanism drivingsuch indentors.
  • the present invention provides, in a apparatus useful for crimping terminal contacts onto electrical leads, the apparatus, being of the type having .a funnel assembly, for guiding the leads into the contact and also having a plurality of indentors operable to crimp the contact onto the lead, an improvement being first a funnel consisting of two halves, each half having a leg portion and on one end thereof semi-circular portion with a radiused tapered groove along its open side so that when the funnel halves are in abutting relation,
  • the grooves cooperate to form a funnel opening, and each half further having on another end a perpendicular extending, cam following pin, and a spring retaining pin on the leg portion, and a pair of funnel cams each having a base portion, upstanding wall portion and a step-like cam portion having a angled wall surface adapted .to block the afore-mentioned cam following pin whereby the funnel halves are kept in closed engagement with each other, a wall parallel to the funnel leg whereby the pin may move freely outwardly under biasing force of said springs thereby opening the funnels, and a ramp on the step whereby the pin maybe DESCRIPTION OF THE PREFERRED EMBODIMENT
  • a terminal contact 10 is adapted to crimp a terminal contact 10 as seen in FIG. 7 onto an electrical lead 12 to produce a terminated lead 14. So that returned to its abutting relation with the angled wall this operation can be done on an assembly line basis, a plurality of contacts 10 are mounted on a carrier strip 16 which is fed through the apparatus.
  • the strip made of a plastic film such as MYLAR, consists of a base sheet 17 having spaced apart slots 18 along its rear side 19 and a narrow strip 20 electronically welded on top .of the sheet and extending rearwardly from the front edge 21. Base sheet 17 and strip 20 form pockets 22 between the'electronic weldswhich hold contacts 10.
  • the apparatus in FIG. 1 includes the mechanical apparatus 26 and its housing 28 which also doubles as a carrying case.
  • the case includes a hinged side 29 which provides access to apparatus 26, a reel assembly 30 which includes a free wheeling feed reel 31 on which is coiled afore-mentioned carrier strip. 16 loaded with contacts 10.
  • the reel assembly 30 also includes a reel mounting spindle 32 and a vertical attachment post 33.
  • the apparatus 26 includes on its left side (toward the left margin) a wire stripper assembly 36 which has been disclosed in US. Pat. No. 3,630,105.
  • an end of an electrical lead 12 is inserted into a funnel shaped opening 37 and four blades (not shown) within the assembly cut away or strip a portion of insulation from lead 12 leaving a bare section of conductor 38 exposed as shown in FIG. 7.
  • other parts of the stripper assembly 36 which is shown include the stripper head 39, an insulation scrap basket 40, and to the right, a stripping adjusting knob 41.
  • a protective shield 42 encloses most of the assembly.
  • the crimping assembly 44 is on the right of apparatus 26 and includes the crimping head assembly 46 and the rocker assembly 48 (FIG. 4) and the belt feed 50. Additionally but not shown are the .power means to drive 'both the wire stripper assembly 36 and crimping assembly 44.
  • a crimping head adjustment wheel 52 is located to the left and below the crimping head assembly.
  • the important aspect in the present invention is the crimping head assembly 46 which is shown in exploded justing the depth of penetration of the bolt in to the head and tail.
  • FIG. 2a is an enlarged view of a funnel cam
  • the first element is a clear plastic cover plate 53 which-contains a plurality of mounting holes 54, a central aperture 55 and a horizontal slot 56 integral with the aperture.
  • indentor retainer ring 58 which contains a number of mounting holes 59 and on the rear side, two slots 60a, each apart and which form a part of carrier strip slot 60 which can be seen in FIG. 3.
  • the left hand slot 60a has one corner designated at 62, rounded to permit belt 16 to move into the slots without snagging an edge.
  • the next part in the assembly 46 is the cam wheel 64.
  • the front surface of wheel 64 contains two identical cam slots 65, each 180 apart.
  • the slots are adapted to receive a funnel cam 66, held therein by funnel cam retainer 67 which is attached to wheel 64 via screw 68 threadedly engaging bore 69 in the slot.
  • the construction of funnel cam 66 can best be seen in FIG. 2a.
  • the cam includes a base member 70 and an upstanding wall member 71 integral with the base and having a zig-zag configuration. Further there is a cam member 72 integral with base 70 and wall portion 71, and contains a ramp 73.
  • cam wheel 64 contains two slots, 180 apart, which form another portion of carrier strip slot 60 and are designated at 6017. Also found on the rear side of wheel 64 are four indentor cam seats 73, each being 90 apart from its neighbor. Each seat receives an indentor cam 75 and a return cam 76. Cam wheel 64 also has a pin 77 which is housed in an appropriate aperture (not shown) and extends rearwardly from the wheel.
  • lndentor guide 80 of the crimping head assembly 46 is shown in FIG. 2 to the left of cam wheel 64.
  • Guide 80 a metal disk, receives a split wire funnel assembly 81 in its funnel groove 82 located on its front side. The groove terminates in the center of the guide in a funnel bore 83 which extends therethrough.
  • a wire removal slot 84 extends laterally of bore 83, both slot 84 and bore 83 being in alignment with slot 56 and aperture 55 respectively found on the plastic cover plate 53.
  • Each half of funnel 81 includes the afore-mentioned leg member 87 which terminates outwardly at a point 88 which contains a rearwardly projecting cam pin 89. lnwardly each leg member 87 terminates in an semicircular portion 90 which is attached perpendicularly to the leg member. Each semi-circular portion has a tapered, radiused groove 90a extending inwardly from one side and a cylindrical radiused groove portion 90b extending to the opposite side.
  • the rear side of guide 80 can best be described by referring to FIG. 3-as well as FIG. 2.
  • Bisecting the guide 80 is portion 600 of carrier strip slot 60. Attention is drawn to the fact that the rearward opening of wire removal slot 84 terminates in a section of carrier strip slot 60.
  • indentor grooves Radiating outwardly from funnel bore 83 are four indentor grooves collectively numbered 92 and spaced 90 degrees apart from each other.
  • a plurality of bores 94 extend through guide 80 for mounting purposes.
  • Each indentor groove 92 receives an indentor 96 (FIG. 2) which consists of three sections; i.e., an indenting head member 97, a tail camming member 98 and an adjusting connecting member 99 which both connects the two and adjusts the overall length.
  • an indentor 96 (FIG. 2) which consists of three sections; i.e., an indenting head member 97, a tail camming member 98 and an adjusting connecting member 99 which both connects the two and adjusts the overall length.
  • the member is threaded at either end and is received in threaded apertures located in the two outer sections.
  • Head member 97 terminates in a tapered, squared-off point 100.
  • Tail member 98 has its lower surface; i.e., the side away from the reader in FIG. 2, notched at 101 so that the indentor can move freely under cam return 76 as seen in FIG. 3.
  • a pin 102 projects up from the floor of the notched area to a height equal to the step 103 formed by reason of notching.
  • a rear cover plate 104 covers the rear top half of crimping head assembly 46. Holes 105 therein admit conventional bolts (not shown) for purposes of mounting the plate to the assembly.
  • the assembly of crimping head assembly involves telescoping the three main elements into each other so that guide 80 fits within cam wheel 64 and those two elements fit within ring 56.
  • the assembly is fixed to the crimping apparatus so that the guide 80 and ring 56 are stationary and the cam wheel is free to rotate a distance equal to the length of a slot 106 in cam return 76.
  • FIG. 3 The back of an assembled crimping head assembly 46 is shown in FIG. 3 so as to illustrate the interrelationship of the indentors 96 with the several other elements of the assembly.
  • Each tail member 98 abuts the beveled side 105 of cam 75 and pin 102 projects into slot 106 in cam 76.
  • Connecting member 99 insures that each indentor 96 travels inwardly to the same depth as the other indentors 96.
  • FIG. 4 illustrates the rocker assembly 48 which oscillates cam wheel 64.
  • Rocker arm 110 is rocked back and forth by conventional means; i.e., an electric motor (not shown) driving a fly wheel 111 on which a roller 112 is mounted and which rides in slot 113 in arm 110.
  • Arm 110 pivots about a pin 114 and is connected to pin 77 in cam wheel 64 via slot 115 located in the upper end of the arm.
  • a switch 116 controlling the operation of rocker arm 1 10 is seen to the right of roller 1 12.
  • the assembly which drives carrier strip 16 through the carrier strip slot 60 is seen in part in phantom and consists of a pair of drive wheels (not shown) and belt 116 on which are fixed a plurality of teeth 117 which engage slots 18 in carrier strip 16.
  • FIG. 5 shows the front of crimping head assembly 46 and the relation between funnel assembly 81 and funnel cam 66.
  • the pin 89 on each leg 87 engages cam 66 at or near the point of juncture 120 between wall portion 71 and cam member 72 thereby holding each funnel half 81 in the closed position shown.
  • cam wheel 64 has been rotated counter-clockwise allowing cam member 72 to move past pin 89 and out of blocking position of funnel assembly 81. Under the force of springs 86 the funnel halves are pushed open as seen. As cam wheel 64 rotates back, pin 89 rides up ramp 73 and back into the blocked position seen in FIG. 5.
  • indentor earns 75 are causing indentors 86 to advance inwardly to crimp barrel 125 onto lead 12.
  • cam wheel 64 is rotated counter-clockwise which causes indentors 96 to move outwardly and the funnels halves to open.
  • carrier strip 16 is advanced (via belt 1 16) to the right so that a new contact 26 is placed between indentors 96 and aligned with grooves 91.
  • the now terminated lead 14 is advanced along wire removal slot 84 where lead 14 and contact 10 are pulled from carrier strip 16. This completes the'cycle and leaves the crimping head assembly 46 in readiness for terminating another lead 12.
  • an improvement comprising:
  • a funnel assembly consisting of two halves, each half having a leg portion, a perpendicular, semicircular portion having a radiused groove, with a tapered section on one end of said leg portion, said grooves cooperating to form a funnel opening when said halves are in abutting relation, and a cam pin on another end of said leg portion, and further having a spring engaging pin on said leg portion;
  • a pair of funnel cams each having a base member, an upstanding wall member and a cam member, said cam member including a funnel blocking portion adapted to block outwardly movement of said cam pin on said funnel leg portion, a parallel portion adapted to permit outwardly movement of said cam pin, and a ramp adapted to return said cam pin from said parallel portion to said funnel-blocking portion;
  • a plurality of indentors each indentor consisting of a indenting head, a camming tail and a connecting member threadedly engaged both to said head and said tail and operable to vary the length of said indentor by adjusting the amount of threaded engagement of either or both of said head and said tail thereonto.
  • center portions with a funnel opening extending inwardly from one side and merging with a cylindri cal opening extending to the other side, said center portion split along a plane extending through the axis of said funnel and cylindrical openings thereby forming two identical center portion halves;
  • a pair of biasing means each adapted to bias a center portion half away from another center portion half;
  • camming means adapted to engage said camming pin on said leg member for camming said center portion halves into abutting engagement with each other.
  • the camming means of claim 1 further including blocking means thereon adapted to keep said center halves in abutting engagement and ramp means thereon adapted to return said camming pin to said blocking means.
  • each indentor having a indentor head member, one end being tapered and another end having a threaded aperture;
  • a connecting member threaded on both ends and adapted to be attached to said head and tail members via said threaded apertures and further adapted to vary the length of said indentor by adjusting the depth of said threaded attachment.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Supply And Installment Of Electrical Components (AREA)
US00252792A 1972-05-12 1972-05-12 Crimping apparatus Expired - Lifetime US3833993A (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
US00252792A US3833993A (en) 1972-05-12 1972-05-12 Crimping apparatus
CA169,612A CA981432A (en) 1972-05-12 1973-04-26 Electrical terminal crimping apparatus
IT23599/73A IT984240B (it) 1972-05-12 1973-04-30 Apparecchio di aggraffatura
AU54962/73A AU5496273A (en) 1972-05-12 1973-04-30 Crimping apparatus
GB2061773A GB1387953A (en) 1972-05-12 1973-05-01 Crimping apparatus
DE2322514A DE2322514C2 (de) 1972-05-12 1973-05-04 Andrückmaschine
NL7306523A NL7306523A (US06272168-20010807-M00014.png) 1972-05-12 1973-05-10
BE131046A BE799448A (fr) 1972-05-12 1973-05-11 Appareil de sertissage,
BR3458/73A BR7303458D0 (pt) 1972-05-12 1973-05-11 Aparelho cravador
ES414674A ES414674A1 (es) 1972-05-12 1973-05-11 Un aparato de recalcar.
SE7306726A SE376124B (US06272168-20010807-M00014.png) 1972-05-12 1973-05-11
AR247996A AR194454A1 (es) 1972-05-12 1973-05-11 Un aparato plegador
FR7317243A FR2184775B1 (US06272168-20010807-M00014.png) 1972-05-12 1973-05-11
JP48053070A JPS4949181A (US06272168-20010807-M00014.png) 1972-05-12 1973-05-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00252792A US3833993A (en) 1972-05-12 1972-05-12 Crimping apparatus

Publications (1)

Publication Number Publication Date
US3833993A true US3833993A (en) 1974-09-10

Family

ID=22957568

Family Applications (1)

Application Number Title Priority Date Filing Date
US00252792A Expired - Lifetime US3833993A (en) 1972-05-12 1972-05-12 Crimping apparatus

Country Status (14)

Country Link
US (1) US3833993A (US06272168-20010807-M00014.png)
JP (1) JPS4949181A (US06272168-20010807-M00014.png)
AR (1) AR194454A1 (US06272168-20010807-M00014.png)
AU (1) AU5496273A (US06272168-20010807-M00014.png)
BE (1) BE799448A (US06272168-20010807-M00014.png)
BR (1) BR7303458D0 (US06272168-20010807-M00014.png)
CA (1) CA981432A (US06272168-20010807-M00014.png)
DE (1) DE2322514C2 (US06272168-20010807-M00014.png)
ES (1) ES414674A1 (US06272168-20010807-M00014.png)
FR (1) FR2184775B1 (US06272168-20010807-M00014.png)
GB (1) GB1387953A (US06272168-20010807-M00014.png)
IT (1) IT984240B (US06272168-20010807-M00014.png)
NL (1) NL7306523A (US06272168-20010807-M00014.png)
SE (1) SE376124B (US06272168-20010807-M00014.png)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4025999A (en) * 1976-02-18 1977-05-31 Joseph Wolyn Adjustable crimp die assembly
US4828516A (en) * 1983-12-30 1989-05-09 Amp Incorporated Crimped electrical connection and crimping dies therefore
US4890384A (en) * 1988-08-25 1990-01-02 Amp Incorporated Method of crimping an electrical connection
US4951369A (en) * 1988-07-08 1990-08-28 Amp Incorporated Wire processing apparatus
US4976132A (en) * 1983-12-30 1990-12-11 Amp Incorporated Dies for crimping an electrical connection
US5471863A (en) * 1994-04-05 1995-12-05 The Whitaker Corporation Precision crimping apparatus
WO2004021523A1 (en) * 2002-08-28 2004-03-11 Daniels Manufacturing Corporation Crimp tool for crimping pin and socket contacts
US20050136736A1 (en) * 2003-12-11 2005-06-23 Daniel Labro Device for crimping a contact on a cable
US20050282445A1 (en) * 2003-08-19 2005-12-22 Kelly William D Crimp tool for crimping pin and socket contacts

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59217747A (ja) * 1983-05-25 1984-12-07 Mitsubishi Rayon Co Ltd 塩化ビニル系樹脂組成物
JPS60152548A (ja) * 1984-01-23 1985-08-10 Japan Synthetic Rubber Co Ltd 塩化ビニル系樹脂組成物
DE4127843C2 (de) * 1991-08-22 1996-12-19 Guenther Ing Gr Wallrabenstein Kabel-Konfektionier-Maschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2939505A (en) * 1956-04-23 1960-06-07 Amp Inc Feeding and crimping method and apparatus
US2929433A (en) * 1958-10-17 1960-03-22 Artos Engineering Co Art of attaching terminals to electric conductors
US3199334A (en) * 1961-12-11 1965-08-10 Marion B Holmes Crimping tool
US3416213A (en) * 1966-08-16 1968-12-17 Amp Inc Crimping apparatus for electrical terminals

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4025999A (en) * 1976-02-18 1977-05-31 Joseph Wolyn Adjustable crimp die assembly
US4828516A (en) * 1983-12-30 1989-05-09 Amp Incorporated Crimped electrical connection and crimping dies therefore
US4976132A (en) * 1983-12-30 1990-12-11 Amp Incorporated Dies for crimping an electrical connection
US4951369A (en) * 1988-07-08 1990-08-28 Amp Incorporated Wire processing apparatus
US4890384A (en) * 1988-08-25 1990-01-02 Amp Incorporated Method of crimping an electrical connection
US5471863A (en) * 1994-04-05 1995-12-05 The Whitaker Corporation Precision crimping apparatus
WO2004021523A1 (en) * 2002-08-28 2004-03-11 Daniels Manufacturing Corporation Crimp tool for crimping pin and socket contacts
US20040072378A1 (en) * 2002-08-28 2004-04-15 Kelly William D. Crimp tool for crimping pin and socket contacts
US7162909B2 (en) 2002-08-28 2007-01-16 Daniels Manufacturing Corporation Crimp tool for crimping pin and socket contacts
US20050282445A1 (en) * 2003-08-19 2005-12-22 Kelly William D Crimp tool for crimping pin and socket contacts
US20050136736A1 (en) * 2003-12-11 2005-06-23 Daniel Labro Device for crimping a contact on a cable
US7418851B2 (en) * 2003-12-11 2008-09-02 Airbus France S.A.S. Device for crimping a contact on a cable

Also Published As

Publication number Publication date
JPS4949181A (US06272168-20010807-M00014.png) 1974-05-13
CA981432A (en) 1976-01-13
AR194454A1 (es) 1973-07-13
DE2322514C2 (de) 1986-05-22
ES414674A1 (es) 1976-01-16
SE376124B (US06272168-20010807-M00014.png) 1975-05-05
FR2184775A1 (US06272168-20010807-M00014.png) 1973-12-28
BR7303458D0 (pt) 1974-06-27
FR2184775B1 (US06272168-20010807-M00014.png) 1977-02-11
GB1387953A (en) 1975-03-19
AU5496273A (en) 1974-10-31
IT984240B (it) 1974-11-20
NL7306523A (US06272168-20010807-M00014.png) 1973-11-14
BE799448A (fr) 1973-11-12
DE2322514A1 (de) 1973-11-29

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