US3771208A - Machine for crimping connectors to wires and connector supply arrangement - Google Patents

Machine for crimping connectors to wires and connector supply arrangement Download PDF

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Publication number
US3771208A
US3771208A US00234113A US3771208DA US3771208A US 3771208 A US3771208 A US 3771208A US 00234113 A US00234113 A US 00234113A US 3771208D A US3771208D A US 3771208DA US 3771208 A US3771208 A US 3771208A
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United States
Prior art keywords
ram
connector
tape
wires
anvil
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US00234113A
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English (en)
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J Taylor
J Golden
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Reliable Electric Co
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Reliable Electric Co
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    • 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
    • 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
    • H01R43/048—Crimping apparatus or processes
    • H01R43/055—Crimping apparatus or processes with contact member feeding mechanism
    • 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
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5147—Plural diverse manufacturing apparatus including means for metal shaping or assembling including composite tool
    • Y10T29/5148—Plural diverse manufacturing apparatus including means for metal shaping or assembling including composite tool including severing means
    • Y10T29/515—Plural diverse manufacturing apparatus including means for metal shaping or assembling including composite tool including severing means to trim electric component
    • 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
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5176—Plural diverse manufacturing apparatus including means for metal shaping or assembling including machining means
    • 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
    • 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
    • Y10T29/53478—Means to assemble or disassemble with magazine supply
    • Y10T29/53522—Means to fasten by deforming

Definitions

  • the machine comprises an anvil for back ingthe tape and connector, a reciprocating ram, a
  • wire-retaining guide carried by the ram for supporting the two wires in spaced apart relationship, and a shear block adjacent to the anvil and being movable relative to the anvil.
  • the shear block has cutting edges cooperating with the ram for cutting the wires and has addi- Int. HOlr 43/04 203 tional cutting edges cooperating with the anvil for cut- [58] Field of Search....................
  • References Cited is driven by a primary piston which is in lost-motion UNITED STATES PATENTS connection with a member that actuates a valve to operate a secondary piston for feeding the tape following the forward stroke of the primary piston.
  • SHEET 7 BF 8 MACHINE FOR CRIMPING CONNECTORS TO WIRES AND CONNECTOR SUPPLY ARRANGEMENT BACKGROUND OF THE INVENTION This invention relates to improvements in machines for crimping connectors to conductor wires so as to form a spliced connection of the wires.
  • each wire of the existing cable must be spliced with a wire of the new cable.
  • Such splicing operation requires positive electrical contact at the splice and also requires that each splice be insulated from the other splices in the cable. Since the splicing is carried out in the field, the operation is necessarily performed somewhat by hand, it being understood that hand operation includes the use of portable pneumatic equipment. In any event, the equipment or machine for the splicing operation must be one that is reliable in operation, easy to use, and makes it possible to form a large number of spliced connections in a short period of time.
  • the machine comprises an anvil for backing the tape and a base of each connector, a reciprocating ram, a wire retaining guide carried by the ram for supporting a pair of juxtaposed wires, and a shear block adjacent to the anvil and being movable relative to the anvil.
  • the shear block has cutting edges cooperating with the ram for cutting the wires and also has additional cutting edges cooperating with the anvil for cutting the tape.
  • the ram has die surfaces cooperating with the anvil for crimping the connector by folding the sides of the connector and the tape bonded thereto such that portions of those sides and the tape are between the wires.
  • the machine also includes a primary cylinder and piston for driving the ram through a forward stroke to (l) sever the tape with a connector thereon from the remainder of the tape, (2) insert the wires into the connector and with the wires having ends protruding from opposite ends of the connector, (3) cutting off the protruding end portions, and (4) crimp the connector to the wires by folding the sides of the connector, as aforesaid.
  • the ram has projecting pins for engaging the shear block to insure that the tape is severed should the wire ends be cut before the tape is cut.
  • the wires are pulled into the connector so that the cut ends of the wires are recessed in the connector when the latter is crimped. This prevents short circuits. The result is attained by the unique shear block and the manner in which it acts on the wires in conjunction with the operation of the ram.
  • the invention also contemplates the use of a secondary piston and cylinder for driving a feed wheel which advances the tape to position the next connector against the anvil preparatory to crimping.
  • the secondary piston is operated to drive the feed wheel.
  • the primary piston rod is in lost-motion connection with a rod which is driven by the primary piston rod near the end of its power stroke so as to actuate a valve and supply the air to the secondary cylinder.
  • Each connector has a U-shaped shell and a U-shaped insert telescoped within the shell, the insert having inwardly projecting prongs to bite through or pierce the insulation covering the wires to be crimped.
  • the plastic tape has marginal strip portions and spaced parallel transverse sections joining the marginal strip portions.
  • the tape also has openings between the transverse sections whereby the tape appears much like a ladder in which the rungs of the ladder are made up of the aforesaid transverse sections. These transverse sections are bonded to the base and sides of the outer shell of the connector and with those portions of the transverse sections that are bonded to the sides of the outer shell extending upwardly beyond the free ends of the sides of the shell.
  • the tape is cut adjacent to the marginal strip portions, which are discarded as scrap after they come out of the machine. Consequently, only a small portion of the tape is wasted since the bulk of the tape is retained by the connector to serve as an insulation for the same.
  • the tape will be prepunched to form the ladder configuration prior to bonding the connectors to the transverse sections or runged portion of the ladder.
  • the tape with the connectors thereon may then be rolled up into a reel or other supply container, as desired.
  • FIG. 1 is a perspective view of a crimping machine constructed in accordance with and embodying the present invention
  • FIG. 2 is a fragmentary top plan view of the machine of FIG. 1;
  • FIG. 3 is a fragmentary sectional view taken approximately along line 33 of FIG. 2, but showing other parts broken away for purposes of clarity, and showing the ram in its normal or fully retracted position;
  • FIG. 4 is a fragmentary sectional view, on an enlarged scale, of a portion of FIG. 3 and showing the ram partially advanced toward the anvil or head preparatory to crimping the connector and cutting of the tape;
  • FIG. 5 is a fragmentary sectional view, on an enlarged scale, of a portion of the structure of FIG. 4 but showing the ram advanced to the position in which the tape is cut;
  • FIG. 6 is a fragmentary sectional view similar to FIG. 5 but showing the ram in the wire-cutting position
  • FIG. 7 is a fragmentary sectional view similar to FIG. 6 and showing the ram in its fully advanced position and wherein the connector is fully crimped to the conductors;
  • FIG. 8 is an exploded perspective view of the wire ret'ainer, the ram, and a portion of the end of the ram rod;
  • FIG. 9 is an exploded perspective view of the head or anvil, the shear block, the anvil retainer plate, and certain parts associated therewith;
  • FIG. 10 is a fragmentary sectional view showing the primary piston and cylinder and toggle linkage associated therewith, the piston being in its normal or retracted position;
  • FIG. 11 is a sectional view similar to FIG. 10 but showing the primary piston approaching the end of its forward stroke
  • FIGS. 12 and 13 are fragmentary sectional views, on an enlarged scale, taken approximately along lines 12-l2 and 13--13 of FIG. 3;
  • FIG. 14 is a fragmentary exploded perspective view of the feed wheel drive and indexing arrangement which form part of the present invention.
  • FIG. 15 is a fragmentary sectional view, on an enlarged scale, taken approximately along line 1515 of FIG. 3;
  • FIG. 16 is a perspective view, somewhat diagramatic in nature, and showing the pneumatic interconnections of the primary and secondary cylinders;
  • FIG. 17 is a top plane view showing the connectors mounted on the prepunched tape
  • FIG. 18 is a side elevational view of the structure of FIG. 17;
  • FIG. 19 is a bottom plan view of the structure of FIG. 17;
  • FIG. 20 is a sectional view, on an enlarged scale, taken along line 20-20 of FIG. 17;
  • FIG. 21 is an elevational view of a splice formed by crimping a connector to a pair of insulated wires by the machine of and in accordance with the present invention
  • FIG. 22 is a sectional view, on an enlarged scale, taken along line 2222 of FIG. 21;
  • FIG. 23 shows a modified form of ram
  • FIG. 24 shows a modified form of a shear block
  • FIG. 25 is a fragmentary horizontal section showing the action of the ram and shear block of FIG. 24.
  • Each connector 2 comprises a U-shaped shell 4 having a base 6 opposed sides 8, l0 and inwardly projecting opposed'flanges 12, 14 at the free end of the sides 8, 10.
  • the shell 4 is preferably formed of a soft deformable material such as copper or annealed brass.
  • a U-shaped insert 16 Telescoped within the shell 4 and of slightly shorter length is a U-shaped insert 16 also having a base 18 opposed sides 20, 22 and opposed flanges 24, 26.
  • the insert 16 is preferably formed of a resilient somewhat harder material such as spring tempered phosphor bronze and includes a series of inwardly projecting prongs 28 that are formed by striking the insert material from the base 18 and sides 20, 22.
  • the connectors 2 are in spaced parallel relationship and are disposed along a carrier or tape 30.
  • this tape 30 is a thin flexible sheet of polyethylene terephthalate resin commonly sold under the trademark Mylar.
  • the tape 30 has parallel marginal strip portions 32, 34 that are joined by parallel transverse sections 36. Each transverse section has a portion 38 that is bonded to a base 6 of a connector.
  • each transverse section 36 has parallel projecting portions 40, 42 which are bonded to the exterior surfaces of the sides 8, l0 and extend a substantial distance beyond the flanges 12, 14.
  • the connectors 2 are spaced from the marginal strip portions 32, 34 to leave parallel regions of severence 44, 46 which are of reduced width as compared to the adjacent portion 38 and at which the tape will be severed parallel to the strip portions 32, 34 in the crimping operation, as will be presently more fully described.
  • the outwardly projecting portions 40, 42 are formed by cutting or punching the tape with the result that a series of openings 48 are formed between the respective connectors and their associated transverse sections 36.
  • the porjecting portion 40, 42 are formed by slitting the tape, there is little waste of tape material, and it is a relatively simple matter to bond the portions 38, 40, 42 to the connector in any suitable manner.
  • the tape comes with one side provided with a heat-bondable adhesive.
  • the machine deforms the connector 2 to the shape shown in FIGS. 21 and 22.
  • the crimping deforms the sides of the shell 4 and of the insert 16 and causes the flanges 12, 14, 24, 26 to be positioned between the conductor wires 50, 52.
  • the projected portions, 40, 42am turned in between and are clinched by the flanges 12, 14.
  • the prongs 28 pierce the insulation surrounding the wires and bite into the wires to form the electrical connection between the wires.
  • the machine comprises a housing having side plates 54, 56 a top plate 58, and cover members 60, 62.
  • the side plate, top plate and cover members may be suitably secured together by the screws shown.
  • the cover member62 has an opening 64 through which the tape 30 enters the interior of the housing.
  • a tape guide 66 having opposed channels 68, 68 for receiving the marginal portions 32, 34 to guide the tape 30 in an upwardly inclined fashion toward a feed wheel 70.
  • the feed wheel 70 has circumferentially spaced peripheral teeth 72 for engagement in the openings 48 in the tape whereby the feed wheel 70 serves to drive positively the tape upwardly toward the top plate 58.
  • the feed wheel 70 has a reduced diameter portion 74 with a series of notches 76 circumferentially spaced apart and equal in number to the number of teeth 72.
  • the feed wheel 70 includes a shaft 78 that is joumaled in a bearing 80 mounted in the side plate 56. Mounted on the shaft 78 exteriorly of the side plate 56 (FIG. 2) is a hand wheel 82 for manually operating the feed wheel 70. Mounted on the underside of the top plate 58 is an index spring 84 which adapted to engage in one of the notches 76 to retain the feed wheel 70 in position each time it is rotated or indexed to advance the tape 30.
  • the feed wheel 70 is driven by a piston rod 86 of a secondary air cylinder 87, the operation of which will hereinafter be described. Suffice it to say for the present, however, that the secondary piston rod 86 is pivotally connected to an arm or link 88 which drives a shaft 90.
  • the shaft 90 is coupled to the feed wheel 70 by a clutch roller bearing 92 of known construction. This clutch roller bearing 92 transmits torque in one direction and is overrunning in the opposite direction.
  • clutch roller bearing 92 permits the shaft 90 to drive the feed wheel clockwise (FIGS. 3 and 14); however, when the shaft rotates counterclockwise upon retraction of the secondary piston rod 86, the shaft 90 rotates relative to the feed wheel 70, the latter then being held in position by the index spring 84. Since the clutch roller bearing 92 is a commercially available item, it is not shown or described in detail herein.
  • the secondary cylinder 87 is also of conventional design and is of a type such that the introduction of air pressure therein causes the piston rod 86 to move upwardly (FIG. 3) while removal of air pressure causes a coil spring (not shown) within the cylinder 87 to retract the piston rod 86.
  • the secondary cylinder 87 has a base block 94 that pivotally receives a shoulder screw 96 that is threaded into one end of a spacer 98 located between the secondary cylinder 87 and the side plate 56.
  • An additional screw 100 projects through the side plate 56 and is threaded into the other end of the spacer 98.
  • the machine includes a forming die or ram 102 that is driven by a ram rod 104 overlying the top plate 58.
  • the ram rod 104 is powered by a primary piston rod 106 movable in a main or primary air cylinder 108.
  • the ram rod 104 is guided for reciproeating movement in a bearing 110 and by guide blocks 112.
  • a return spring 114 Between the bearing 110 and guide blocks 112 is a return spring 114.
  • the rear end of the ram rod 114 is connected to a toggle linkage of knowndesign. Suffree it to say, however, that a clevis 116 is threaded onto the rear end of the ram rod 102 and is guided between the blocks 112, 112.
  • the clevis 116 is pivotally connected by a pin 117 to a bell crank 124, and the bell crank 124 is pivotally connected by a pin 122 to a clevis 118.
  • Clevis 118 is pivotally connected by a pin 120 to anchor blocks 119 on the top plate 58.
  • the lower end of the bell crank 124 is pivotally connected by a pin 126 to a clevis 127 that is secured to the end of the primary piston rod 106.
  • the forward end of the ram rod 104 carries a wire retainer 128.
  • This wire retainer 128 is a generally U-shaped member having forwardly extending legs 129, 129 (FIG. 8) and a bight 130 with a vertical hole 132 therein.
  • the forward ends of the legs 129, 129 are each provided with leaf springs 134, 134 and pins 136, 136.
  • Each spring 134 bears against its associated pin near the base thereof to provide a structure for retaining an insulated conductor that is placed between a spring 134 and its associated pin.
  • the respective spring and pin arrangements 134, 136 are offset from each other such that when a pair of insulated conductor wires, such as wires 50, 52, are placed in the respective wire holders formed by the pins 136 and springs 134, the two conductor wires will be juxtaposed and, in general, roughly parallel.
  • the rear portion 138 (FIG. 8) of the ram 102 is of reduced height so as to fit under the bight 130 of the wire retainer 128, as may be seen from FIG. 4. Furthermore, the forward end 140 of the ram 102 is reduced and cut away to fit under the bight 130 and also in an arcuate recess 142 in the ram.
  • a screw 144 passes through the hole 132 and through a transverse hole 146 in the rear portion 138 whereby the ram 102, the wire retainer 128, and the ram rod 104 are fastened together rigidly and with the ram 102 being disposed between the sides or legs 129, 129 of the wire retainer 128.
  • the forward end or face of 5 the ram 102 is provided with arcuate die surfaces 148, 148 that are separated by a ridge 150. These surfaces extend transversely of the ram 102 and are for the purpose of deforming the sides of the connector. Furthermore, the edges 152 which are formed at the intersection of the surfaces 148 and the sides of the ram 102 provide cutting edges at opposite sides of the ram 102 for cooperation with additional cutting edges (hereinafter described) for cutting off excess conductor wire.
  • the anvil 154 has a for ward vertical surface 156 which is flat and constitutes a backing for the tape and connector during the crimping operation, as illustrated in FIGS. 4-7.
  • the anvil 154 is held in place by a retainer 158 that is secured by screws to the top plate 58.
  • a screw 160 passes through a hole in the retainer 158 and through an elongated or oval-shaped vertical hole 162 in the anvil 154.
  • the screw 160 is threaded into the top plate 58 to hold the anvil in place.
  • the elongated hole 162 permits forward and rearward adjustment of the position of the anvil 154.
  • a U-shaped shear block 164 housed within the retainer 158 .
  • the shear block 164 includes spaced parallel arms 166, 168 and a bight 170.
  • the shear block 164 is spring-biased for movement within the retainer 158 and relative to the anvil 154.
  • a pair of coil springs 172 are interposed between the bight 170 and retainer 158.
  • the coil springs 172 may be seated in recesses 174, 174 in the retainer 158.
  • a like pair of recesses are provided on the back side of the bight 170 for receiving the springs 172, 172.
  • An adjustment screw 176 is threaded into a hole 178 in the retainer 158 and passes freely through a hole 180 in the bight 170.
  • the forward end of the screw 176 is adapted to abut the rear surface of the anvil 154 so that the latter may be positioned properly while the screw 160 is loose, after which the screw 160 may be tightened.
  • the arms 166, 168 of the shear block are provided with arcuate abutments 180, 180 against which the insulated wires 50, 52 seat during the wire cutting portion of the crimping operation.
  • these abutments 180, 180 are offset just as are the wire retaining arrangements of the wire retainer 178.
  • the abutments are offset such that one abutment receives one insulated conductor while the other abutment receives the other conductor.
  • the side edges 182, 182 of the abutments 180, 180 provide sharp edges that cooperate with the edges 152 of the ram to cut off the excess portions of wire projecting from the connector 2.
  • the ram rod 104, ram 102, and wire retainer 128 will move to the right (FIGS. 4-7).
  • the conductors 50, 52 are carried forwardly, they engage respectively the arcuate abutments 180, 180 on the shear block.
  • Further movement of the ram then causes the shear block 164 to move to the right (FIG. 3) against the force of the springs 172.
  • the shear block so moves, the cutting edges 186 on the shear block cooperate with the cutting edges 188 on the anvil to slit the tape vertically along the regions of severence 44, 46,
  • FIG. 19 At this time the machine is in a position shown in FIG. 5. Further movement of the ram to the postion shown in FIG. 6 causes the cutting edges 152, 152 at the sides of the ram 102 to cooperate with the cutting edges 182, 182 on the shear block 164 to cut the protruding ends of the conductors. Further movement of the ram to the position shown in FIG. 7 results in completing the insertion of the conductors into the connector 2 and causes the die surfaces 148, 148 to crimp the connector, thereby to provide the splice shown in FIGS. 7, 21 and 22.
  • the flanges 12, 14, 24, 26 of the connector as well as the extended portion 40, 42 of the tape are forced between the two conductors.
  • the ram is thereafter retracted, and the tape 30 is advanced by the feed wheel 72.
  • the primary cylinder 108 has opposed circular ears 190, one of which is shown in FIG. 12, the other being identical thereto.
  • the ears 190 are joumeled in trunnions 192 that are provided on the side plates 54, 56.
  • the piston rod 106 is connected to a primary piston 194 located within the cylinder 108.
  • the rear end of the cylinder 108 is closed off by a valve housing 196 that contains a conventional valve structure, the operation of which will be hereinafter described.
  • a closure disc 198 that constitutes abutment for one end of a return spring 200 that biases the piston 194 to its return position adjacent to the housing 196. This is the position shown in, FIG. 10.
  • the pistonrod 106 has a central bore 202 for coaxially mounting a rod 204 that also extends through the valve housing 196 and at its outer end has a stroke wheel 206 threadedly mounted thereon.
  • the stroke wheel 206 may be adjustably positioned for actuating a valve tripping or operating button 208 on the housing 196.
  • the air supply arrangement for the primary and secondary cylinders 108, 87 is shown in FIG. 16. Air from a suitable source of compressed air is supplied through fitting 214 through flexible line 216 to the valve structure. The air passes through the valve structure to control lines 218, 220 in which manually operated valves 224, 226 are located. It will be noted that these valves are in series and are mounted on the exterior surfaces of the side plates 54, 56, one of the valves 224 beingillustrated in FIG. 1. The downstream line 228 from the valve 226 connects to a fitting 230 on the valve housing 196 for supplying air to the primary piston 194 for driving the piston 194 in its forward stroke.
  • both valves 224, 226 must be opened at the same time in order for the piston 194 to commence operation.
  • the stroke wheel 206 finally engages the trip button 208, air to the cylinder 108 is exhausted to atmosphere whereby the spring 200 returns the piston 194.
  • Air from the valve arrangement will thereafter be supplied through secondary line 232 to the secondary cylinder 87 so that the piston therein and secondary piston rod 86 proceeds through its operating stroke to rotate the feed wheel and advanced the tape upwardly to position the next connector for subsequent crimping.
  • the strip button 208 is released, opening the supply line 232 to atmosphere whereby the spring within the secondary cylinder 87 returns the piston rod 86 to its normal position shown in FIG. 3.
  • valve means within the housing 196 is of a known type used for operating two spring return air cylinders in sequence with the phasing or control of the valve being effected at the end of the stroke of the firstactuated cylinder. Accordingly, such valve means may simply be a four-way valve in which air is supplied to cylinder 108 if the trip button 208 is released and air is supplied to the cylinder 87 when the button 208 is depressed. Furthermore, the valve has a phase lag or inertia in operation due to damping thereof such that the ram 102 is able to move back out of the way to allow clearance for the next connector being advanced to its crimping position. Also, if desired, the secondary cylinder 87 may be somewhat slower acting as compared to the primary cylinder, which further allows for retraction of the ram 102 to provide such clearance for the advancing tape.
  • FIG. 23 shows a modified form of ram 102' which is similar to the ram 102, previously described.
  • the ram 102' has laterally projecting, parallel pins 250, 252 on opposite sides of the ram and located rearwardly of the cutting edges 152 and the front opening or recess 190' of the ram.
  • the pins 250, 252 are also forwardly of the rear portion 138 and are offset to engage respectively those portions of the forward ends of the shear block arms 166, 168 that are adjacent to the abutments 180, 180.
  • the pins 250, 252 engage the shear block arms 166, 168 to move the shear block and cut the tape. Consequently, the pins 250, 252 insure cutting of the tape even if the wires are prematurely cut.
  • the springs 172, 172 could be designed with sufficient stiffness so that the wires will always be cut before the tape is cut.
  • each wire retainer in the wire retaining guide 128, it will be apparent that more than one conductor can be secured between each spring 134 and its associated pin 136. In addition either ordinary or tap splices may be made.
  • shear block 164a that is similar to the shear block 164 except that the shear block 164a has projections that form arcuate, convex surfaces 260, 262. These surfaces project toward the ram a substantial distance such that the crests of the arcs of those surfaces are but a short distance from the arcuate abutments 180, 180, respectively. As will be explained subsequently, these surfaces 260, 262 cooperate with the ram of FIG. 23 to draw the cut ends 270, 270 of the conductors 50, 52 within the ends of the connector 2 prior to completion of the crimping operation.
  • the cut ends of the conductors are recessed within the connector 2 and are shielded by the tape ends that extend beyond the ends of the connector. This prevents short circuits between adjacent splices where a number of spliced conductors are cabled together.
  • the return springs 172 (FIG. 9) for the shear block 164a be sufficiently strong that the conductors will be out before the tape is cut.
  • the conductors are cut, as previously described. Further movement of the ram may cause some initial crimping of the connector to take place, and in addition the conductors are carried within the connector by the wire retainer 128.
  • the conductor portions 264, 266 that are outwardly of the connector engage the arcuate surfaces 260, 262 causing the portions 264', 266 to bend.
  • said wireretaining means comprises for each wire a pin and a spring that provide a structure for gripping the wire.
  • a machine in which said ram has a return stroke, and indexing means responsive to said return stroke for advancing the tape to position another conductor at said anvil.
  • said indexing means includes a feed wheel with peripheral teeth that engage openings in the tape between the conductors, said feed wheel being rotatable about an axis that is parallel to the path of reciprocation of said ram.
  • a machine fo crimping a tape-carried connector means comprising a reciprocating ram, conductor retaining means carried by-said ram, an anvil, a shear block slidable relative to said anvil and being springbiased toward said ram, first cooperating means including said ram and cutting edges on said shear block and anvil for cutting said tape and for cutting said conductor means exteriorlyof said connector, and second cooperating means on said ram and said anvil for crimping said connector to said conductor means.
  • a machine for crimping to conductors connectors that are mounted on a carrier, said machine comprising first means for crimping a connector to a conductor and for severing the connector from the carrier, and second means for advancing the carrier in a stepby-step fashion to position connectors; said first means including a ram and a primary piston for driving said ram through an operating stroke; said second means including feed means for moving said carrier and a secondary piston for actuating said feed means; and means for operating said secondary piston upon completion of said operating stroke, said last-named means comprising a member having a lost-motion connection with said primary piston.
  • a machine according to claim 11 including valve means triggered by said member upon completion of said operating stroke.
  • each connector having a U-shaped shell, the shell including opposed sides and a base, a continuous tape of nonconducting material having marginal strip portions and spaced parallel transverse sections joining said marginal strip portions, the tape having openings between said transverse sections, each transverse section being bonded to a base and opposed sides of a shell and with the transverse section extending outwardly beyond those ends of the opposed sides that are remote from said base, a ram and anvil means that form cooperating die members for crimping a connector to conductor wires and folding said transverse sections into the crimped connector, means forming a passage for movement of the connectors one-by-one to the space between the ram and the anvil means when the ram and anvil means are apart, means for gripping wires at regions that are spaced apart a distance that is greater than the distance between said marginal strip portions, means for driving said ram toward said anvil means, means for severing end portions of
  • each connector and shell has opposed flanges projecting toward each other and located at said lastmentioned ends of the opposed sides, and wherein the die members force said flanges into juxtaposed relationship and with the transverse sections being clinched by said flanges.
  • a machine according to claim 1 including means cooperating with the ram for drawing the cut ends of said wires into said connector.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Wire Processing (AREA)
US00234113A 1972-03-13 1972-03-13 Machine for crimping connectors to wires and connector supply arrangement Expired - Lifetime US3771208A (en)

Applications Claiming Priority (1)

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US23411372A 1972-03-13 1972-03-13

Publications (1)

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US3771208A true US3771208A (en) 1973-11-13

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US00234113A Expired - Lifetime US3771208A (en) 1972-03-13 1972-03-13 Machine for crimping connectors to wires and connector supply arrangement

Country Status (13)

Country Link
US (1) US3771208A (es)
JP (1) JPS48102286A (es)
AR (1) AR194306A1 (es)
AU (1) AU474886B2 (es)
BR (1) BR7301752D0 (es)
CA (1) CA988688A (es)
DE (1) DE2312187C3 (es)
ES (1) ES412548A1 (es)
FR (1) FR2175931A1 (es)
GB (1) GB1366626A (es)
IT (1) IT979814B (es)
SE (1) SE397234B (es)
ZA (1) ZA731714B (es)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3866291A (en) * 1972-09-20 1975-02-18 Rose Walter Kg Apparatus for splicing conductors
US3911712A (en) * 1973-07-13 1975-10-14 Amp Inc Crimping tool
US3962780A (en) * 1975-06-26 1976-06-15 General Electric Company Methods and apparatus for making electrical interconnections
US4035910A (en) * 1975-06-26 1977-07-19 General Electric Company Methods and apparatus for use in making electrical interconnections
US4051594A (en) * 1976-03-29 1977-10-04 General Electric Company Methods and apparatus for use in making electrical interconnections
US4148137A (en) * 1976-03-29 1979-04-10 General Electric Company Apparatus for use in making electrical interconnections
US4411063A (en) * 1979-07-09 1983-10-25 Thomas & Betts Corporation Splice installing tool
US4480385A (en) * 1979-10-11 1984-11-06 Allied Corporation Tool and method for terminating electrical conductors in contact members
EP0627787A2 (en) * 1993-06-04 1994-12-07 Thomas & Betts Corporation Terminals used for terminating sealed wire
US5495662A (en) * 1993-02-09 1996-03-05 Sumitomo Wiring Systems, Ltd. Cable guide for a terminal crimping apparatus
EP0917249A2 (en) * 1997-11-14 1999-05-19 INARCA S.p.A. Serially associated electrical connectors for feeding automated wiring machines with the same
US20050210670A1 (en) * 2001-11-24 2005-09-29 Delphi Technologies, Inc. Wire loader
US20070101570A1 (en) * 2005-11-10 2007-05-10 Komax Holding Ag Wire-Processing Device and Method of Operating such a Wire-Processing Device
US20070123069A1 (en) * 2004-06-12 2007-05-31 Je-Ir Choi Clip ribbon and apparatus for splicing surface mounted device carrier tapes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8816325D0 (en) * 1988-07-08 1988-08-10 Amp Great Britain Wire processing apparatus
CN112909690B (zh) * 2021-01-19 2022-11-29 国网湖北省电力有限公司荆州供电公司 一种馈线连接用手提连接箱设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339719A (en) * 1965-10-12 1967-09-05 Thomas & Betts Co Inc Terminal tape
US3465409A (en) * 1966-12-23 1969-09-09 Western Electric Co Terminal attaching machine
US3685148A (en) * 1970-03-20 1972-08-22 Jack Garfinkel Method for making a wire splice

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339719A (en) * 1965-10-12 1967-09-05 Thomas & Betts Co Inc Terminal tape
US3465409A (en) * 1966-12-23 1969-09-09 Western Electric Co Terminal attaching machine
US3685148A (en) * 1970-03-20 1972-08-22 Jack Garfinkel Method for making a wire splice

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3866291A (en) * 1972-09-20 1975-02-18 Rose Walter Kg Apparatus for splicing conductors
US3911712A (en) * 1973-07-13 1975-10-14 Amp Inc Crimping tool
USRE30001E (en) * 1975-06-26 1979-05-22 General Electric Company Methods and apparatus for making electrical interconnections
FR2335073A1 (fr) * 1975-06-26 1977-07-08 Gen Electric Appareil de realisation de connexions electriques serties et d'enlevement de debris dans un tel appareil
FR2335071A1 (fr) * 1975-06-26 1977-07-08 Gen Electric Procede et appareil de realisation de connexions electriques serties
US4035910A (en) * 1975-06-26 1977-07-19 General Electric Company Methods and apparatus for use in making electrical interconnections
US3962780A (en) * 1975-06-26 1976-06-15 General Electric Company Methods and apparatus for making electrical interconnections
FR2335072A1 (fr) * 1975-06-26 1977-07-08 Gen Electric Appareil de realisation de connexions electriques serties
US4051594A (en) * 1976-03-29 1977-10-04 General Electric Company Methods and apparatus for use in making electrical interconnections
FR2358037A1 (fr) * 1976-03-29 1978-02-03 Gen Electric Appareil et procede pour la realisation de connexions electriques serties
US4148137A (en) * 1976-03-29 1979-04-10 General Electric Company Apparatus for use in making electrical interconnections
US4411063A (en) * 1979-07-09 1983-10-25 Thomas & Betts Corporation Splice installing tool
US4480385A (en) * 1979-10-11 1984-11-06 Allied Corporation Tool and method for terminating electrical conductors in contact members
US5495662A (en) * 1993-02-09 1996-03-05 Sumitomo Wiring Systems, Ltd. Cable guide for a terminal crimping apparatus
EP0627787A2 (en) * 1993-06-04 1994-12-07 Thomas & Betts Corporation Terminals used for terminating sealed wire
EP0627787A3 (en) * 1993-06-04 1996-06-19 Thomas & Betts Corp Shielded cable connectors.
EP0917249A2 (en) * 1997-11-14 1999-05-19 INARCA S.p.A. Serially associated electrical connectors for feeding automated wiring machines with the same
EP0917249A3 (en) * 1997-11-14 2000-07-19 INARCA S.p.A. Serially associated electrical connectors for feeding automated wiring machines with the same
US20050210670A1 (en) * 2001-11-24 2005-09-29 Delphi Technologies, Inc. Wire loader
US7334321B2 (en) * 2001-11-24 2008-02-26 Delphi Technologies, Inc. Wire loader
US20070123069A1 (en) * 2004-06-12 2007-05-31 Je-Ir Choi Clip ribbon and apparatus for splicing surface mounted device carrier tapes
US20070101570A1 (en) * 2005-11-10 2007-05-10 Komax Holding Ag Wire-Processing Device and Method of Operating such a Wire-Processing Device
US7698801B2 (en) * 2005-11-10 2010-04-20 Komax Holding Ag Wire-processing device and method of operating such a wire-processing device

Also Published As

Publication number Publication date
AU5321473A (en) 1974-09-12
JPS48102286A (es) 1973-12-22
DE2312187C3 (de) 1975-05-28
ZA731714B (en) 1973-12-19
GB1366626A (en) 1974-09-11
FR2175931A1 (es) 1973-10-26
DE2312187B2 (de) 1974-09-05
BR7301752D0 (pt) 1974-07-11
CA988688A (en) 1976-05-11
AR194306A1 (es) 1973-06-29
IT979814B (it) 1974-09-30
ES412548A1 (es) 1976-01-01
AU474886B2 (en) 1976-08-05
DE2312187A1 (de) 1973-09-27
SE397234B (sv) 1977-10-24

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