FR2526238A1 - COMBINED MACHINE FOR THE PROGRAMMED CUTTING OF ISOLATED AND NON-INSULATED ELECTRIC WIRES, END WIPING AND EMBEDDING AND CRIMPING OF INSULATING BEDS AND PROTECTIONS - Google Patents

Abstract

THE SUBJECT OF THE PRESENT INVENTION IS A COMBINED MACHINE FOR THE PROGRAMMED CUTTING OF INSULATED AND NON-INSULATED ELECTRIC WIRES, THE STRIPPING OF ONE OR THEIR TWO ENDS, AND THE ENCLOSURE AND CRIMPING ON ONE OR ON BOTH ENDS OF TERMINALS OF CONNECTION AND ANY INSULATION PROTECTION, SINGLE OR MULTIPLE. THE MACHINE INCLUDES A STATION 1 FOR ADVANCING THE CONDUCTOR TO BE PROCESSED FOLLOWED BY A STATION FOR CUTTING AND STRIPING THE WIRE FITTED WITH AUTOMATIC CLAMPS 6 WHICH BRING THE ENDS OF THE WIRE TO PRESSES 41, 42 WHICH ENSURE THE CRIMPING OF A TERMINAL ELECTRICAL AND THE POSSIBLE CONNECTION OF A SINGLE OR MULTIPLE INSULATION PROTECTION. THE MACHINE HAS A PROGRAMMABLE AUTONOMOUS OPERATION AND DOES NOT REQUIRE ANY SPECIALIZED MONITORING DURING ITS OPERATION.

Description

Combined machine for insulated and uninsulated, hoisting and crimping

  programmed cut of electrical wires

  stripping of the ends and

  lugs and insulators.

  The present invention relates to a combined machine for the programmed cutting of insulated or non-insulated electrical wires,

  the stripping of their ends and the fitting and ser-

  weaving on these lugs and / or single or multiple insulating pads.

  As is known in the field of wiring

  networks and installations, in particular in the case of equipment produced in large series, such as

  household appliances or vehicles, it is widely

  The use of insulated electrical wires with crimped lugs of different shapes or types, which can be, once crimping, introduced into simple insulating guards.

or multiples.

  Machines are already known which perform single or multiple cutting, stripping, crimping and press fitting operations, but their fitting and development can only be carried out by means of

  highly specialized staff and in quite a long time.

  Usually, these machines are not able to realize

  cables longer than a pre-determined value.

  If the case arises that the end of the same cables of identical or different length already provided with lugs must be introduced into multiple drotections, it is necessary to proceed with the preliminary preparation of the cables and to their introduction in the protections

  insulators with recovery operations.

  Even then, one can clearly see the high cost of all these operations due to the number of people needed and the amount

  operations to be carried out in succession.

  The main purpose of the invention is to develop

  a combined machine for the programmed cutting of electric wires

  isolated or uninsulated teams capable of solving problems

  my current encounters in the known technique.

  Another object of primary importance of the present invention is that of making a programmable machine capable of performing cuts of the wires in a desired number in a desired sequence and

length desired and prefixed.

  Another object of the present invention is that of producing a machine capable of simultaneously executing the cutting of the wires and the stripping of the ends of the conductor according to

  sequences of number and length desired.

  Another object is that of making a machine which is capable, after the cutting and stripping sequence in a sequence of the desired number and length, of crimping electrical terminals on one or both of them.

ends of the wires.

  Another object is that of producing a machine which provides for an operation of fitting single or multiple insulating guards on the cables previously cut, stripped and crimped in lengths of the desired number and length,

  thereby obtaining cabling groups already ready to em-

  and this without the intervention of manual operations.

  Without being the last, yet another goal of the

  The present invention is that of making a complete machine

  automatically able, once programmed,

  to function in an autonomous way without asking for

  presence of a specialized control operator.

  These goals, as well as others which will appear more clearly later, are achieved by a combined machine for the programmed cutting of insulated electrical wires, the stripping of their ends and the fitting and crimping of insulating terminals and protections, characterized by the fact that it comprises

  a progress and measuring station of simultaneous length

  born of at least one insulated (or non-isolated) conductor; a simultaneous cutting and stripping station of the two consecutive ends obtained with the section of the conductor, provided with a pair of rotary clamps which bring said ends to one or more electric terminal crimping presses; a plurality of presses crimping electrical terminals; one or more auxiliary stations for fitting one or more insulating protections, single or multiple; automatic programming and control means

different operations.

  Other features and advantages of the invention are

  more clearly from the detailed description that will

  follow of a preferred embodiment, given here by way of non-limiting example with reference to the accompanying drawings, in which: Figure 1 shows schematically the whole of the

  machine seen from the power supply side of the elec-

  cudgel; FIG. 2 is an overall view of the machine on the side where the cut electrical conductor is discharged;

  FIG. 3 is a sectional view of all the devices

  who cut and strip the ends of the conductors;

  FIGS. 4a, 4b, 4c, 4d, 4e and 5a, 5b illustrate a diagrammatic

  the sequences of the cutting, stripping, crimping of the lugs and fitting of the pods

  insulating protections performed by the machine.

  According to the figures, the machine according to the invention is

  consisting of a station 1 for advancing the driver 2 des-

  designed to be sectioned in lengths prefixed.

  This station 1 has a pair of motorized wheels, respectively 3 and 4, between which is obliged to pass

  the driver 2 which is thus driven and unwound from a bobbin

not shown in the figure.

  The movement of these pairs of wheels 3 and 4 is controlled by

  electronic sensors that measure the length of the con-

  driver in progress according to the number of revolutions performed by these same wheels, said control system being part of a computer on which it is possible to program the number of sections of conductor to be cut to a predetermined length and the crimping or not of lugs on both ends of the conductors In an embodiment according to a variant, the machine provides a plurality of devices for advancing and measuring the conductors that advance simultaneously at least two

  conductors for branching or branching.

  The machine advances the first end of the driver

  from said advance station 1 by obliging it to become

  troducing in a substantially cylindrical chute 5,

  arranged on a first rotary gripper 6.

  This same chute 5 has in an intermediate zone a slot 7 in which is inserted a locking element 8 actuated, through a lever system 9, by a jack

pneumatic double effect 10.

  In practice, when the feed station 1 stops at a certain length of the conductor, the latter is blocked in the chute 5 by the pressure exerted by

said locking member.

  Said chute 5 is extended by a conical appendage 11 whose cylindrical end piece 12 fits into a housing

  13 belonging to the cutting and denouncing

14.

  This cutting and stripping station 14 has a triple pair of knives, respectively intermediate cutting 15a

  and 15b and side stripping 16a, 16b, 17a, 17b.

  The three upper knives 15a, 16a and 17a are mounted on an upper bed base 18 supported by a horizontal arm 19 which, in turn, is secured to two vertical columns 20

  and 21 integral with the frame of the machine.

  The three lower knives 15b, 16c and 17c are in turn integral with a lower bed base 22 supported by a

  second horizontal arm 23 which, through the intermediary of

  sliding slips 24, is guided on said columns

and 21.

  By acting on said lower bed base 22, a piston 25 causes the cutting of the conductor and the incision of the material

  insulation to be removed to obtain the stripping.

  Next to said stripping station 14, and in a position symmetrical with respect to said first rotary clamp 6, is a second rotary clamp 26, constituted by a vertical body 27 which supports a horizontal appendage 28 with a laterally open chute 29 and disposed in direct extension of the chute 5 of the first clamp 6

  and housing 13 o passes the driver.

  To hold the driver in the middle position in the

  32, there is provided a pair of inverted V-shaped jaws 30a and 30b which are pushed downwardly by a piston 31 through a lever system 32, so that

  that their wings are inserted into openings

  on the base of the chute 29 by bringing the driver to the top of the V at which it remains blocked against the

middle zone of the chute 29.

  This same chute 29 is closed laterally on its side which is turned towards the cutting station 14 by a flap 33 articulated by hinges 34, so as to create a "closed channel" when the driver is introduced during the advancement phase and release the same lateral opening of the chute to let the driver out when this

  will be necessary in the operative sequence.

  On the other hand, on an arm 36 is mounted an auxiliary clamp consisting of two jaws 37 and 38 articulated on the same arm 36 and meshing with toothed sectors 39 The gripping point 40 of said jaws 37 and 38 has been advantageously calculated so as to be in correspondence with the position of the driver when the

  auxiliary gripper 35 grips it.

  The sequence of the operating phases of the machine comprises the advance on a prefixed length of the conductor by the station 1, while the two rotary clamps 6 and 26 are arranged on the sides of the cutting station 13 by producing a single chute for the passage

of the driver.

  After having advanced for a certain length, the driver stops and this stop triggers the simultaneous cutting and incising operation of the insulator on the two ends of conductors generated by the cut and which belong to

  two consecutive sections of cable.

  To make the stripping, the two clamps 6 and 26, after closing on the driver, move away from the station

  section 13 by disengaging the ends of the latter,

  packed with insulation, from this same station 13.

  At this stage, the two clamps 6 and 26 each rotate about their vertical axis, bringing the stripped ends of the conductor under two crimping presses 41 and 42.

  usual type, o the pods will be applied.

  In this position where the clamp 26 is in front of the

  press 42, the auxiliary gripper 35 grips the driver

  near the lug, releases it from the second clamp 26, by releasing it laterally through the opening of the chute 29, then, by performing another rotation, brings the lug to a station 43 where it is automatically introduced

  in an insulating protective cover.

  Once this operation is completed, the driver is ejected on a ramp 44. The various operations which have just been described can all be programmed or even eliminated, so that it is possible to obtain sections of conductor

  for cabling with their ends fitted with an insulated terminal

  whether or not isolated. The insulation can be made with multiple protection, in which case it will remain in the waiting position

  other drivers, until it is completed.

  The different operating phases of the machine are illus-

  4 and 5 are also provided stations for the fitting of insulating protections on

both pods.

  Figure 4 illustrates a first operational phase in the

  the conductor C held by the plier Pl has already left the cutting and stripping device T, which has proceeded to this same stripping by removing the insulator from the end

of the driver.

  In the phase illustrated in FIG. 4b, the plier P1 describes a rotation by bringing the end of the conductor C to the level of the crimping press Pr1 which makes the fitting

a first electrical lug.

  After this operation, the display 4c shows the phase during which the plier Pl brings the driver C back into alignment

  with the cutting device C and with the second clamp P 2.

  Successively, the driver continues his advance movement

  until another PB clamp grasps the end

  at the crimping zone of the electrical terminal.

than previously stapled.

  In FIG. 4 d, it is possible to see the phase during which the end on which the electrical lug has been crimped is kept at a standstill and blocked By the clamp PB while the conductor C continues to advance to a desired length,

by arranging himself in a loop.

  FIG. 4 shows the phase in which the conductor C, which has just been cut at its other end by the cutting device T and then stripped, is seized at the

  this second end by the clamp P 2.

  FIG. 5a shows the phase in which a crimping press Pr 2 fixes a second electrical terminal on the

  conductor C, while the pincer Pp brings the first end

  the same conductor C to a station I 1 o said

  electrical lug is fitted in an insulating protection.

  FIG. 5b shows the successive phase during which an auxiliary clamp PA moves the clamp P 2 to another station P 2 where the second end of the conductor C is it

  also equipped with an insulating protection for the lug.

  At the same time, a new driver C 1 is already ready

for a new cycle.

  The use of a computer with memory on the other hand gives the machine extreme flexibility, because it allows to program the lengths of different

  sections of drivers that we want to realize that their number.

  On the other hand, in case we want to make a connection

  multiple, the calculator can order an appropriate sequence

  required to prepare bundles of conductors already wired and with lugs already grouped in a single insulating protection or directly wired on

terminals of the apparatus.

  It goes without saying that the innovative concept that made it possible

  tion of the machine which has just been described may equally well allow the development of other similar machines

  capable of performing a sequence of equivalent operations.

  Moreover, the dimensions of the machine according to the invention and the materials used for its realization can be

  any according to the necessities.

Claims (7)

Claims.   1 Combined machine for programmed cutting of conductors   electrical insulated, the stripping of their ends, the   weaving lugs and the possible fitting of insulating protective lugs, characterized in that it comprises a station (1) simultaneous advancement and length measurement of at least one insulated conductor (or not insulated) ; a station (14) for simultaneous cutting and stripping of the two ends obtained by cutting the conductor, provided with   of a pair of rotating tongs (6, 26) which bring the   ends to one or more presses (41, 42) for crimping electrical terminals; a plurality of presses (41, 42) for crimping electrical terminals; one or more auxiliary stations (43) for fitting one or more insulating protections, single or multiple; automatic programming and control means different operations.   2 Machine according to the preceding claim, characterized in that said feed station (1) comprises at least one pair of wheels (3, 4) tangent to each other, which   enclose the driver in their zone of tangency by thus, his training.   3 Machine according to the preceding claim, characterized in that said drive wheels (3, 4) are motorized and provided with sensors which, based on the number of turns made by said wheels proceed to the measurement   the length of the conductor section that they advance.   4 Machine according to claim 1, characterized in that said cutting station (14) is constituted by a triple pair of knives, whose central pair (15 a, b) ensures the severing of the conductor, while the pairs of knives adjacent areas (16a, 16b, 17a, 17b) ensure   the incision of the insulation for stripping.   Machine according to one or more of the preceding claims 6-   characterized in that said cutting station (14) also comprises at least one pair of tongs (6, 26)   able to hold the driver, to move towards the   before cutting and to move away from these same knives   after cutting to clear the insulation.   6 Machine according to the preceding claim, characterized in that after performing the stripping of the conductor said clamps (6, 26) describe a rotation retaining the respective ends of the latter to bring each under a press (41, 42 ) who performs the crimping   an electrical connector or lug.   Machine according to one or more of the preceding claims   characterized in that at least one of said clamps (6, 26) is provided with an auxiliary clamp (35) having two jaws which grip the conductor on which the lug has been crimped and bring it to a station (43) successive o this same pod is introduced in a   single or multiple insulating protection.   Machine according to one or more of the preceding claims   dentes, characterized in that it is provided with a calculatorprogrammateur -apte to control the various operations of the machine and to program them in a sequential manner. 9 Machine according to the preceding claim, characterized in that on said computer can be programmed the number and length of conductor sections that we want to cut.   Machine according to one or more of the preceding claims   cedeentes, characterized in that on said calculator   it is possible to program a sequence of different sections   rents, possibly repetitive, suitable for the preparation   of groups of conductors wired to a single isolated multiple nector.