FR2817671A1 - TAPE TIP CRIMPING PIECE WITH IMPROVED TAPE CUTTING MEANS - Google Patents

Abstract

This tool comprises a body in which is formed a crimping chamber opening out towards the outside of the body through a passage for introducing one end of a wire element, a crimping mechanism arranged in said crimping chamber, said mechanism comprising an anvil adapted to receive a part of a crimping tip, a movable punch (101) intended to deform said part by pressing it against said anvil, and a movable member (103) for cutting the strip. 103) is capable of deflection with respect to the direction of action of the punch (101).

Description

The invention relates to a tool for crimping strip ends, said tool

  strip being intended to run in its longitudinal direction, said tool comprising a body in which is formed a crimping chamber opening towards the outside of the body by a passage for introducing an end of a wire element into said chamber, a crimping mechanism arranged in said crimping chamber, said mechanism comprising an anvil adapted to receive part of a crimping end piece, a movable punch intended to deform said part by pressing it against said anvil, and a movable member

strip cutting.

  The term "ferrule" is understood here naturally as a crimping wiring accessory, in the general sense, which can

designate for example a terminal.

  However, the invention is particularly applicable to ends with an insulating collar intended for the connection of a flexible conductor provided with an insulating sheath, generally used in industrial electrical appliances operating at low voltage. Such tips are very widely used and are notably defined in

  standardization documents (French standard NF C 63-023).

  When they are presented in a band, they are connected by a plastic film molded with the collar

insulating.

  The standards defining this type of end caps with insulating flange establish standard dimensions

  covering all current industrial needs.

  Numerous crimping pliers of the aforementioned type are known in the prior art, designed to perform crimping operations with ferrules of different dimensions. Generally, known tip chargers contain a large number of tips of the same dimensions, the operator having to change the charger each time he

  want to work with different type tips.

  On the other hand, the cutting member is adjusted, generally manually, so as to describe a very precise fixed angle relative to the movement of the punch, so that the plastic film is cut between two consecutive end pieces, while the sleeve conductor of the crimp tip is deformed by the punch. Changing tips

  requires modification of the adjustment of the cutting member.

  Commonly, an industrial type terminal block can comprise at least six types of connection according to the nominal cross section of the conductor used, and therefore of ferrules, which requires from the operator, during crimping operations, either the use of several crimping pliers, or a frequent change of bit charger and therefore repeated operations of

  mounting / dismounting of the magazine on the clamp.

  In the first case, the quantity of material used is a source of confusion and errors in the operations of

  crimping and represents a prohibitive cost.

  In the second case, the repeated assembly / disassembly operations of the charger lead to a loss of

important time.

  A main object of the invention is to remedy these drawbacks by simplifying the task of the operator when he has to switch from one type of nozzle to another, and by reducing the number of operations necessary for this change. To this end, according to the invention, the cutting member is capable of movement relative to the

direction of action of the punch.

  According to other characteristics: - the cutting member is connected to the punch so as to be moved with the punch, and the cutting member is also capable of angular movement relative to the punch, around a substantially transverse axis with respect to the direction of travel of the strip; - The punch is movable relative to the anvil in a substantially translational movement; - The movable cutting member is connected to the punch so as to be moved in translation with the punch; - The movable cutting member is connected to the punch so as to be moved integrally with the punch; - The cutting member supports a centering member adapted to rest on two consecutive end pieces of the strip, in a region of junction of the end pieces, during the movement of the punch towards the anvil; - The centering member is slidably mounted on the cutting member, in the direction of movement of said cutting member; - The centering member includes stops cooperating with the punch so as to limit the angular movement of the centering member, and integrally with the cutting member, relative to the punch; - the centering member is connected to the cutting member via an elastic return member acting in the sliding direction; the cutting member comprises a blade which extends mainly in the direction of movement of the cutting member, said blade being fixed, by its end opposite the strip, to a base, while the other end of said blade is free and has a cutting edge; - The centering member has a groove extending in the main direction of the blade and cooperating with said blade, so that the blade constitutes a guide for the sliding of the centering member relative to the cutting member; and - the base is pivotally mounted on the punch

around said axis.

  The invention finds a particularly interesting application in a crimping pliers of the type comprising a body extended by a first branch forming a handle, and by a second branch forming a handle, articulated on the body, a channel being formed in said first branch, said channel. removably receiving a charger

  end caps and opening into the crimping chamber.

  In this embodiment of the invention, the loader comprises at least two magazines corresponding respectively to nozzles of different dimensions, and the clamp comprises locking and selection means adapted to keep the loader in the channel, selectively in the one of the positions in which one

  of shops opens opposite the passage.

  The invention will be better understood on reading the

  description which will follow given only as a

  example and made with reference to the accompanying drawings in which: - Figure 1 is an elevational view of ends with insulating flange in strip, as used in a crimping pliers according to the invention; - Figure 2 is an elevational view of a crimping tool equipped with a tip loader, according to the invention; - Figure 3 is an exploded view of the clamp and the tip loader shown in Figure 2 according to a first embodiment of the invention; - Figures 4A and 4B are detail views showing the charger blocking means, in accordance with a second embodiment of the invention, respectively in a first and a second position; - Figure 5 is a view similar to Figure 2, corresponding to one or the other of the two embodiments, with partial cutaway of a wall of the handle receiving the tip charger, the charger being in a first position; - Figure 6 is a view similar to Figure 5, the tip loader being in a second position; - Figure 7 is a detail view of Figure 2, which shows the crimping chamber and the crimping tool; - Figure 8 is a partially exploded perspective view of the pliers shown in Figures 2 to 7, showing more particularly the crimping tool and a drive member of said tool; - Figure 9 is a partial perspective view of the crimping tool alone, in which have been shown the punch, the centering member and the cutting member; and - Figures 10A to 10E are schematic elevational views of the crimping tool and a series of crimping nozzles, in successive phases of

the crimping operation.

  In Figure 1, there is shown a series of strip tips, of the type commonly used in the applications cited in the preamble to this application. A nozzle 1 essentially comprises an insulating cylindrical sleeve 3 secured to a coaxial conductive cylindrical sleeve 5, of smaller diameter. The insulating sleeve 3 is intended to receive the insulating sheath of an electrical conductor while the conductive sleeve 5 is intended to receive the conductive core and to be deformed thereon during the operation

crimping.

  The ferrules 1, as they are generally used in crimping pliers, are in the form of elongated strips in which the ferrules 1 are arranged parallel to each other, oriented in the same way, the axis of the ferrules being

  orthogonal to the longitudinal direction of the strip.

  Two consecutive end pieces 1 are connected by a plastic film 7, for example molded with the insulating sleeves 3, the plastic film 7 joining two consecutive insulating sleeves 3 in the vicinity of their free end, in the part of minimum distance between the two

cylinders.

  It is understood that the plastic film 7 extends in the longitudinal direction of the strip, and that this film 7 is intended to be cut during the crimping operation of a ferrule 1 on an electrical conductor, so as to

  detach this end piece 1 from the strip.

  In Figure 1, only three tips have been shown, but the tip strips as commonly used have a very large number. It goes without saying that, the plastic film 7 being relatively flexible, the strip can be placed flat as shown, in a spiral, in laces or in any other form suitable for the different

types of chargers used.

  In Figure 2, there is shown a crimping pliers 10 according to the invention, suitable for ferrules 1 of different sizes and of general shape shown in

Figure 1.

  For the convenience of the description, we will orient the

  gripper along the horizontal X-X and vertical Z-Z axes as shown in FIG. 2 in order to define in all that follows the terms "top", "bottom", "bottom",

  "upper", "front", "rear", etc ...

  The clamp 10 which has been shown is of the multifunction type since it makes it possible to carry out several types of operations, namely the cutting of an electrical electrical conductor, the stripping of one end of such an electrical conductor, and the crimping a tip on the

  electrical conductor thus stripped.

  This clamp 10 comprises a central body 12, of which on the one hand are a first handle 14, the cross section of which is roughly quadrangular and tubular, and on the other hand, a first jaw 16. On the body 12 is articulated a second handle 18 connected to a second jaw 20. The second handle 18 is pivotally mounted on the body 12 around a pivot axis YY, in a plane P which will be defined as the clamping plane of the clamp 10 Each of the handles 14, 18 is integral with a cutting blade 22, 23 with a cutting edge intended, when the handles 14, 18 are tightened, to cut an electrical conductor placed between them. The two jaws 16, 20 cooperate with each other and are associated with a mechanism known per se which makes it possible to clamp and then strip a conductor

electric insulated.

  The body 12 has a hole 25 formed transversely in a wall of the body 12 and giving access to a crimping chamber 27 formed in the body 12, in which the crimping operation is carried out. The hole 25 will be better visible in Figures 3, 4 and 5, since a partial cutout of the wall of the body 12 has been

  produced for the purposes of the description of the

  crimping, which will be made with particular reference to the

  Figure 6 which is an enlarged detail of Figure 2.

  The handle 14 is provided at its free end with an opening 31 through which is engaged in the handle 14 a tip loader 33. As will be seen in FIG. 3, the handle 14 constitutes a hollow body forming a channel, of such that the end pieces 1 present in the charger 33, when the latter is in place, are present at the entrance to the crimping chamber 27, opposite the hole 25 through which the operator can introduce an end of electrical conductor in the first end piece 1 of the strip, and bring it into the crimping chamber 27. The hole 25, which is opposite the crimping chamber 27, is extended towards the free end of the handle 14 by an oblong lumen 35 making it possible to view several consecutive tips of the same strip, and thus give information to the operator on the number of tips remaining

in the charger.

  Reference is now made to FIG. 3, in which the pliers of FIG. 2 have been shown in exploded perspective in order to clearly show the magazine 33, the channel 38 formed in the handle 14, as well as a magazine support 40 mounted in channel 38 and intended to receive the

charger 33 removably.

  The charger 33 has the general shape of a rectilinear bar elongated in a main direction coinciding with the main direction of a strip of end pieces 1. The charger 33 comprises, in the example shown, two integral and superimposed magazines 42, 43 each defined by two parallel walls 42A, 42B, 43A, 43B, each pair of walls 42A, 42B, 43A, 43B forming a respective rectilinear rail in the longitudinal direction of the loader 33. In the embodiment shown, each pair of walls 42A, 42B , 43A, 43B has a different spacing adapted to receive a strip of end pieces 1 of different dimensions, as they have been described with reference to FIG. 1. However, this spacing can be chosen to be identical, it being understood that for a spacing given corresponding to a tip size, several types of tip sizes

  can be loaded in the store.

  One 42A, 43A of the walls of each store 42, 43 is integral with a curved metal blade 45, 46 of which a bent part is intended to be inserted between two end pieces 1 consecutive, so as to constitute a means of sliding stop in the respective magazine 42, 43 of a strip of end pieces. These walls 42A, 43A constitute the external walls of the charger 33. In one of these walls 43A is provided a locking window 49 of the charger 33 in the support 40. This window 49 constitutes a hooking member intended to cooperate with a complementary member formed by an elastic tab 51 of the support 40

provided with a lug.

  The support 40 is formed by an elongated slide, extending when it is mounted in the channel 38, from the free end of the handle 14 to the crimping chamber 27. At one of its ends coinciding with a free end region of the handle 14, is formed a perforated plate 53 ensuring a pivot connection with a pin 55 formed projecting in the channel 38

  transversely to the clamping plane P, i.e.

  say transversely with respect to the direction of travel of the end pieces 1. The support 40 can thus pivot in the channel 38 around the common axis Y'-Y 'of the journal

and of the perforated plate 53.

  On the side of the end of the handle 14 facing the crimping chamber 27, the channel 38 has a toothed wall 59 forming two notches 61, while the support 40 is integral with a toothed plate 63 at its end opposite to the perforated plate 53. The toothed plate 63 has a tooth 65 facing the notches 61, and adapted to cooperate with them to define two angular positions of the support 40 around the axis Y'-Y '. The plate 63 also has a tongue 66 which resiliently urges the toothed plate back by pressing on

the body 12.

  On the other hand, an operating member 67 is provided in the form of a button which projects from the clamp 10 through an oblong hole 69 passing through, formed in the handle 14, being integral with the toothed plate 63 and linked to the

support 40.

  So as to recall the support 40 in one of its angular positions defined by the notches 61, the support 40 is provided with an elastic blade 71 which bears on the bottom of the channel 38 while producing on the front part of the support 40

  an elastic force directed upwards.

  Figures 4A and 4B illustrate a second embodiment of the invention which differs from the first by the means for locking the charger in one or the other of its positions. In this embodiment, the two notches 61 and the toothed plate 63 are replaced by a piece 164 of steel wire for example, in the form of an inverted U pin. The pin is positioned in the channel 38 in place of the notches 61 of the first embodiment. One of the branches of the U and part of the connection to the other branch is integral with the body 12 while the other branch is free and has two successive camberings defining a narrowing of the spacing between the two branches and thus two notches 161 A pin 163 secured to the operating member 67 and linked to the support 40. This pin moves between a stable high position and a stable low position by the elastic effect of the pin combined with the narrowing forming a "hard point" in the maneuver. Note that the pin has in one piece the functions of

recall and positioning.

  In Figure 5, there is shown a first configuration of the clamp 10 and the charger 33 according to the invention, in which the charger is in one l1 of the two stable positions defined by the notches 61. In this position, the magazine 43 in which is housed a strip of end caps, shown of large dimensions, opens opposite the hole 25 corresponding to the location of the crimping chamber 27, and also opposite the oblong opening 35 (but this does not appear not on this Figure). In Figure 6, there is shown the configuration for performing a crimping operation with the end pieces housed in the magazine 42, that is to say with end pieces shown of small dimensions. The support 40 is in this case placed in another angular position around its pivot axis Y'-Y 'and the tooth 65 cooperates with the other notch 61. This position makes it possible to open the magazine 42 opposite the hole 25 overlooking the bedroom

crimping 27.

  To pass from one to the other of the configurations represented in FIGS. 5 and 6, the operator has the possibility of actuating the button 67 upwards or downwards to pivot the support 40 and integrally the charger 33. It can also maneuver directly the portion of the loader 33 protruding from the free end of the handle 14. Indeed, the loader 33 has a considerable length; consequently, when the magazine is locked by cooperation of the window 49 and the elastic tab 51 in the support 40, it projects from the clamp through the insertion opening located at the free end

handle 14.

  This protruding length of the charger 33 relative to the handle 14 also allows an operator to easily extract the charger 33 from the support 40 and from the handle 14, by simple pulling, the locking means constituted by the window 49 and the tab elastic 51 being releasable means, by means of a tensile force

relatively small.

  Referring to Figures 7 to 10, we will now describe in more detail the crimping tool of the clamp 10 and its operating mode. Figure 7 shows a detail of Figure 2

  corresponding to the crimping chamber 27.

  There is shown in particular a series of end pieces 1 in band, visible through the oblong opening 35, the first of the series 1A is placed in the crimping chamber 27 for a crimping operation on an electrical conductor . A crimping mechanism is arranged in the crimping chamber 27. It comprises an upper part 81 fixed relative to the body 12, this fixed part 81 being in the form of a hollow anvil, the concavity of which faces the end piece 1A to crimp. The anvil 81 is of dimensions adapted to several sizes of end pieces 1, and receives the conductive sleeve 5 of the end piece 1, which conductive sleeve 5 must be deformed

  on the conductive core of the electrical conductor.

  The crimping tool also comprises a movable lower part 83 to which the functions are assigned, and this in a conventional manner, for cutting the plastic film 7 and for punching the conductive sleeve 5. The mobile part 83 is driven in a movement essentially in translation towards the anvil 81, under

  the action of a link 85 articulated around a Y axis '' -

  Y '' transverse to the clamping plane P and to the

  direction of travel of the end strip.

  Figure 8 is a perspective view of the pliers, in which there is shown, outside of the crimping chamber 27, the movable part 83 of the crimping tool

  and the link 85 for driving this movable part 83.

  It appears more clearly in this Figure that the link 85 comprises two branches 88, 89 substantially orthogonal, the link 85 being pivotally mounted around

  of the Y axis '' - Y '' on a pin 91 secured to the body 12.

  The first branch 88 of the rod 85 has at its free end a U-shaped notch 93 which engages on a complementary cylindrical pin 95 secured to the second handle 18, the pin 95 being able to slide in the notch 93 and drive the rotation of the link 85 when an operator moves the two handles 14, 18 apart or away. The second branch 89 of the link 85 also has at its free end a U-shaped notch 97 receiving a complementary shaft, belonging to the movable part 83, and extending parallel to the Y '' - Y '' axis of the link 85. This shaft has been designated under the reference 99 and has a central part 99A (represented in FIG. 9) which

cooperates with the notch 97.

  It is easy to understand from the view in FIG. 8, that the mobile part 83 of the crimping tool is actuated towards the anvil in a direction substantially orthogonal to the direction of travel of the end pieces 1, and this in the clamping plane P , when the operator brings the two together

branches 14, 18 of the clamp 10.

  In Figure 9, only the part is shown

  mobile 83 of the crimping mechanism.

  This movable part 83 comprises a punch 101, a

  cutting member 103 and a centering member 105.

  The punch 101 can be made in one piece or, as shown, in two rigidly assembled pieces, namely a support 110 on which is fixed a serrated blade 112 forming the pressure member of the punch 101 on the

  conductive sleeve 5 of the crimp fitting.

  The cutting member 103 has a base 114 and a tapered blade 116 fixed to said base 114. The tapered blade 116 is of elongated shape and extends, in the position shown, substantially parallel to the serrated blade 112, one ends of the tapered blade 116 being embedded in the base 114, while the free edge 118 is configured as a cutting edge. The base 114 and the support 110 of the punch 101 are linked to each other by means of the shaft 99, so that the cutting member 103 has a freedom with respect to the punch 101 angular movement around the shaft 99, that is to say around the axis Y '' '- Y' '', while they are linked in translation. The centering member 105 is formed by an L-shaped block mounted to slide on the base 114 parallel to the tapered blade 116. To this end, a first branch 121 of the centering member 105 has a groove 123 complementary to the tapered blade 116 so that it constitutes a guide for the sliding of the centering member 105 relative to the base 114, the tapered blade 116 being at least partially inserted into the groove 123 by one of its edges lateral, when the centering member 105 is in place on the base 114. The centering member 105 is positioned on the base 114 of the cutting member 103 in the following manner: the base 114 has a recess cylindrical made parallel to the tapered blade 116, which receives a complementary finger 125 projecting from the lower part of the centering member 105, the finger being surrounded by a spiral spring 129 which rests on the one hand around or in the bottom of the recess of the base 114, and secondly against the underside of the centering member 105. The second branch 131 of this member, transverse to the tapered blade 116 and to the direction of movement of the punch 101, has two projections forming stops 133 placed on either side of a lateral edge of the crenellated blade 112, the two stops 133 being intended to limit the angular movement of the assembly formed by the cutting member 103 and the centering member 105 relative to the punch 101, around the axis Y '' '- Y' '' materialized by the shaft 99. The limit positions thus defined form a first position offset angularly towards the rear by a positive angle cm, explained below, relative to the direction of the punch 101, and a second direction more strongly shifted backwards by

  relative to this punch, from an angle CM> em.

  On either side of the tapered blade 116, the first branch 121 of the centering member 105 has, at its free end facing the anvil 81, a flat or slightly concave inclined surface 141 respectively, intended to bear on the respective insulating sleeve 3 of each of the two consecutive end pieces. The two surfaces 141

  converge towards anvil 81.

  The operation of the mechanical assembly as well

  described will be better understood on reading the description

  made with reference to Figures 10A to 10E, which show successive steps in a crimping operation using a pliers according to the invention, as described above. In these Figures, there is shown a series of end pieces 1, the end end piece 1A of which is in front of the crimping chamber 27 in order to undergo a crimping operation on an electrical electrical conductor. The end caps have been shown on the side of the insulating sleeve 3, so the cutting 103 and centering members 105 appear in the foreground, while the punch 101, which is arranged in line with the conductive sleeve 5, appears at

second plan.

  In the phase shown in Figure 9A, the punch

  101, the centering member 105 and the tapered blade 116 (i.e.

  i.e. the cutting member 103), are at rest below the anvil 81 and the crimping tip 1A, which is brought in progressively by the operator by means of the electrical conductor to be crimped in the crimping 27, under the anvil 81. In this position, the tapered blade 116 and the centering member 105 have a longitudinal axis angularly offset from that of the punch 101 (shown here vertical) by any angle aA between am and aM. This angle aA of shift in the rest position of the movable member 83 essentially depends on the position in which the clamp is held by the user, and has no effect on the rest of the crimping operation because that it can vary

  freely between the two values am and aM-

  Figure 0lB represents the extreme position of advancement of the end strip, the crimp end lA being here brought into abutment on a bottom wall 143 of the crimping chamber 27. It is in this position of the strip tips that the user usually operates the gripper. In FIG. 10C, the actuation of the clamp 10 is illustrated, when the handles 14, 18 are brought together, at the start of the tightening phase. The crenellated blade 112 of the punch 101 comes to bear, following a vertical translation, on the conductive sleeve 5 of the end piece 1A while the centering member 105 moves integrally in translation in the longitudinal direction of the blade tapered 116, this direction describing the angle of offset aA relative to the direction of the punch 101 (shown vertical). Figure 10D illustrates a next phase of the tightening operation, in which the pressure of the serrated blade 112 of the punch 101 on the conductive sleeve 5 of the tip lA causes the latter to take a stable position wedged at the bottom of the anvil 81. In the example shown, beyond this position, any additional effort exerted to bring the handles 14, 18 causes the reliefs of the serrated blade 112 to penetrate into the conductive sleeve 5, and an additional displacement towards the anvil of the centering member 105 and

of the tapered blade 116.

  In FIG. 10E, the end position of the handles 14, 18 is shown, in which the crenellated blade 112 has finished moving towards the anvil 81 and produced the complete deformation of the conductive sleeve 5, while the member centering 105, by resting, via one and / or the other of the inclined surfaces 141 of the member 105, on the insulating sleeve of the crimp fitting 1A or the fitting next, took a stable position resting on the two tips. The orientation of the centering member 105 and of the tapered blade 116 shown here, defines an offset angle mE generally different from the initial angle aA, since the crimp fittings have a junction area imposing on the centering member 105 a position generally different from the orientation corresponding to the initial offset cA. In the movement of the handles 14, 18 which results in the deformation of the conductive sleeve 5, the centering member 105 is brought into abutment on the insulating sleeve 3 of two consecutive end pieces. By continuing this movement of bringing the handles 14, 18 together, the spring 129 is compressed under the effect of the additional displacement integral with the tapered blade 116 and the serrated blade 112. In the example shown, the tapered blade 116 follows in a manner completes the translational movement of the crenellated blade 112. Consequently, the tapered blade 116 is extracted from the groove 123 of the centering member 105 and cuts the plastic film 7 separating two consecutive end pieces, the plastic film being placed, thanks free movement of the centering member 105 relative to the punch 101, opposite the cutting edge 118 of the tapered blade 116. In FIG. 10E, the end position of the tapered blade 116 is shown, in which the cutting edge 118 completely cuts the plastic film 7. It will be appreciated that the mechanical device which has just been described allows automatic centering of the cutting member 103 on the junction region n which includes the plastic film to be cut, and this for bits of different sizes, within the limit of the possibilities of travel

  of the cutting member 103 relative to the punch 101.

  The invention which has just been described makes it possible, by simple mechanical means, to produce a clamp.

  crimping of tips of great flexibility of use.

  An embodiment of the invention has been described in which the tip loader 33 comprises two magazines adapted to receive different types of tips, but it would be easily conceivable to design a crimping pliers and an associated loader, such as the magazine has a higher number of magazines for tips of different types, this magazine can take a corresponding number of positions in the clamp so as to

  selectively supply the crimping chamber.

  The crimping pliers thus produced thus offer great flexibility of use since the operator can very quickly and by a very simple operation change

  type of end caps ready to be crimped.

  The invention saves considerable time on current cabling operations in an industrial environment, without significantly increasing the cost of

tool manufacturing.

  The invention also makes it possible to achieve a precise cut of the plastic film separating the end caps in strips, avoiding the operator to manually adjust the offset angle of the cutting member relative to the punch, each time the operator changes type of tips. In particular, if a single loader using several magazines receiving various types of end pieces is used, this charger being movable between several positions corresponding to the supply of the crimping chamber by these different magazines, the possibility is offered to the operator to frequently change the type of ferrules without heavy operations, and it is avoided

  tedious adjustments to each of these changes.

Claims (13)

  1. Tool for crimping end caps in strip form, said strip being intended to run in its longitudinal direction, said tool comprising a body (12) in which a crimping chamber (27) opens out towards the outside of the body (12 ) by a passage (25) for introducing one end of a wire element into said chamber (27), a crimping mechanism disposed in said crimping chamber (27), said mechanism comprising an anvil (81) suitable for receiving a part (5) of a crimping end, a movable punch (101) intended to deform said part (5) by pressing it against said anvil (81), and a movable member (103) for cutting the strip (7 ), characterized in that the cutting member (103) is capable of movement relative to the direction of action of the punch (101).   2. Crimping tool according to claim 1, characterized in that the cutting member (103) is connected to the punch (101) so as to be moved with the punch (101), and the cutting member (103) is also capable of angular movement relative to the punch (101), about an axis (Y '' '- Y' '') substantially transverse to   the direction of travel of the tape.   3. Crimping tool according to claim 1 or 2, characterized in that the punch (101) is movable relative to the anvil (81) in a substantially translational movement. 4. Crimping tool according to claim 3, characterized in that the movable cutting member (103) is connected to the punch (101) so as to be moved in translation with the punch (101).   5. Crimping tool according to claim 4, characterized in that the movable cutting member (103) is connected to the punch (101) so as to be moved integrally with the punch (101).   6. Crimping tool according to any one of   Claims 1 to 5, characterized in that the   cutout (103) supports a centering member (105) adapted to rest on two consecutive end pieces (1) of the strip, in a region of junction of the end pieces (1), during the   displacement of the punch (101) towards the anvil (81).   7. Crimping tool according to claim 6, characterized in that the centering member (105) is slidably mounted on the cutting member (103), according to the   direction of movement of said cutting member (103).   8. Crimping tool according to claim 7, characterized in that the centering member (105) comprises stops (133) cooperating with the punch (101) so as to limit the angular movement of the centering member (105 ), and jointly with the cutting member (103), by compared to the punch (101).   9. Crimping tool according to claim 7 or 8, characterized in that the centering member (105) is connected to the cutting member (103) via an elastic return member (129) acting following the sliding direction.   10. Crimping tool according to any one of   Claims 1 to 9, characterized in that the   cutting (103) comprises a blade (116) which mainly extends in the direction of movement of the cutting member (103), said blade (116) being fixed, by its end opposite the strip, to a base ( 114), while the other end of said blade (116) is free   and has a cutting edge (118).   11. Crimping tool according to claims 7   and 10 taken together, characterized in that the centering member (105) has a groove (123) extending in the main direction of the blade (116) and cooperating with said blade, so that the blade (116) constitutes a guide for the sliding of the centering member (105) relative to the cutting member (103).   12. Crimping tool according to claim 2, characterized in that the base (114) is pivotally mounted   on the punch (101) around said axis (Y '' '- Y' '').   13. Crimping tool according to any one of   Claims 1 to 12, consisting of a clamp, said clamp   comprising a body (12) extended by a first branch (14) forming a handle, and by a second branch (18) forming a handle, articulated on the body (12), a channel (38) being formed in said first branch (14) , said channel (38) removably receiving a tip loader (33) and opening into the crimping chamber (27), characterized in that the loader (33) comprises at least two magazines (42,43) corresponding respectively to tips of different dimensions, and the clamp (10) comprises locking and selection means (40, 49, 51, 61, 65, 67) adapted to hold the magazine (33) in the channel (38), selectively in one of the positions in which one of the stores (42,43) opens facing the passage (25).