[0001] The present invention relates to applicator devices for attaching terminals on electric
wires or cables. In particular, the invention regards an applicator device of the
type usable for clinching a metal terminal both on the stripped conductor and on the
insulating sheath of a portion of an electric wire or cable.
[0002] In particular, the invention regards an applicator device of the known type, comprising:
- a fixed base structure, and
- a tool-carrying assembly, which is mounted so that it can slide on the base structure
along a main axis and is designed to be associated to a control member (for example,
a ram of a press), which moves with reciprocating motion along said main axis,
in which said tool-carrying assembly includes:
- a contrast surface, designed to receive the thrust exerted by the ram of the press;
- a first cutting tool and second cutting tool, which extend parallel to said main axis
and are mobile with the tool-carrying assembly following upon activation of the press,
in order to carry out clinching of a metal terminal respectively on the conductor
and on the insulating sheath of an electric wire or cable; and
- means for adjusting the position of the first tool and the second tool, in the direction
of said main axis, with respect to said contrast surface,
in which said adjustment means comprise a first ring and a second ring mounted
so that they can turn, on the tool-carrying assembly, about said main axis, independently
of one another to control, respectively, adjustment of at least one of the two tools
and adjustment of at least the other tool, which has the function of clinching to
the insulating sheath.
[0003] Applicator devices of the type specified above have been known and used for some
time. For instance, a particular solution of applicator device having all the characteristics
specified above formed the subject of the Italian patent No. 1 283 130 in the name
of the present applicant. In these devices, the adjustment means consisting of the
two rotatable rings described above enable easy and fast adjustment of the position
of the two tools, which have, respectively, the function of clinching of the terminal
to the conductor and to the insulating sheath so as to vary accordingly the final
position reached by these tools at the end of the operating stroke of the press. The
above adjustment operation may prove necessary for various reasons, and it is advantageous
that it can be performed in a simple and fast way, as in the case of the device previously
proposed by the present applicant.
[0004] The purpose of the present invention is to further improve the adjustment means of
the applicator device, at the same time guaranteeing the possibility of carrying out
easy and fast adjustment, and moreover guaranteeing the possibility of making a very
fine and precise adjustment, whilst providing a structure that is simple and inexpensive.
[0005] With a view to achieving the above purpose, the subject of the present invention
is a device having all the characteristics specified at the beginning of the present
description and characterized moreover in that at least said first adjusting ring
has a central opening with an internally threaded surface, engaged by screwing on
a first threaded pin, which is axially fixed with respect to a main body of the tool-carrying
assembly in such a way that a rotation of said first ring causes a variation in the
axial position of said first ring with respect to both of the tools, the position
of said first ring defining uniquely the position of said contrast surface, to which
the thrust of the control member is applied.
[0006] Thanks to the characteristics referred to above, the device according to the invention
makes it possible to carry out adjustment of the two tools in a simple, but at the
same time extremely fine and precise way.
[0007] According to a first embodiment of the present invention, also said second ring has
a central opening with an internally threaded surface, engaged by screwing on a second
threaded pin, which is axially fixed with respect to the main body of the tool-carrying
assembly, said second ring being operatively in frontal contact with just the tool
for clinching on the insulator in such a way that rotation of the second ring causes
an axial adjustment of just the second tool with respect to the contrast surface,
to which the thrust of the control member is applied.
[0008] According to a second embodiment of the present invention, instead, the aforesaid
second ring has a front face presenting a helical plane ramp which is operatively
in frontal contact with just the tool for clinching on the insulator, also in this
case in such a way that rotation of the second ring causes an axial adjustment of
just the second tool with respect to the contrast surface, to which the thrust of
the control member is applied.
[0009] According to the preferred embodiment of the present invention, between said first
threaded pin and the internal threaded surface of the first ring there are set means
for reference and for maintaining the angular position of adjustment of the first
ring, comprising a toothing made on one of said two elements and an engagement member
carried by the other element and pushed radially by elastic means against said toothing,
in such a way as to obtain an indexation of the rotation of the first ring. In the
case of the solution described above, which envisages the second threaded pin, preferably
also between said second threaded pin and the internal threaded surface of the second
ring there are set means for reference and for maintaining the angular position of
adjustment of the second ring, comprising also in this case a toothing made on one
of said two elements and an engagement member carried by the other element and pushed
radially by elastic means against said toothing, in such a way as to obtain, also
in this case, an indexation of the rotation of the second ring.
[0010] Once again in the case of the preferred embodiment of the present invention, between
said first ring and said second ring there is set a disk fixed with respect to the
main body of the tool-carrying assembly, said disk and said first ring having respective
teeth designed to enter into contact with one another to define the positions of end-of-travel
of rotation of the first ring. In the case of the solution which envisages the second
threaded pin, also said second ring has a tooth co-operating with a respective tooth
provided on the fixed disk to define the positions of end-of-travel of rotation of
the second ring.
[0011] Thanks to the aforesaid characteristics, the device according to the invention is
able to meet the requirements of ease and precision of adjustment with a relatively
simple structure, of small dimensions and low cost.
[0012] Further characteristics and advantages of the present invention will emerge from
the ensuing description with reference to the attached drawings, which are provided
purely by way of non-limiting example and in which:
- Figure 1 is a perspective view of a first embodiment of the device according to the present
invention;
- Figure 2 is an exploded view of a first part of the device of Figure 1;
- Figure 3 is an exploded view of a second part of the device of Figure 1;
- Figure 4 is a partial cross-sectional view of the device of Figure 1; and
- Figures 5, 6, 7 are variants of Figures 2, 3, 4 which refer to a second embodiment of the invention.
[0013] Figures 1-4 illustrate a first example of embodiment of the device according to the
invention. In these figures, the reference A designates, as a whole, an applicator
device according to the invention designed to apply, by clinching, a metal terminal
both on the stripped conductor and on the insulating sheath of a portion (typically,
an end portion) of an electric wire or cable. According to a technique in itself known,
the device A comprises a fixed base structure, designated as a whole by B, which has
a vertical channel-shaped portion C with a C-shaped cross section defined by two parallel
walls C1 set at a distance apart and connected at the back by a wall C2.
[0014] Again in a way in itself known, within the portion C of the fixed base structure
B there is mounted, so that it can slide vertically, a tool-carrying assembly D, the
movement of which is controlled by a connection element E connected to the ram of
a press (not illustrated) which moves with reciprocating motion in a direction parallel
to the axis of sliding of the tool-carrying assembly D, the said axis being designated
by G in the drawings.
[0015] In the present description and in the annexed drawings no detailed illustration of
the base structure B and of the various members associated thereto is 5 provided,
given that these components are extraneous to the tool-carrying assembly D in so far
as these constructional items can be built in any known way and do not, taken in themselves,
form part of the scope of the invention. Similar considerations may be made as regards
the means designed to feed the metal terminals to the device according to the invention.
In any case, an at least partial description of the above components may be found,
for example, in the following documents: EP-A-0 542 144 which is considered as closest
prior art, US-A-5 909 913 and US-A-5 577 318.
[0016] As already clarified previously, for the purposes of the present invention what is
important is how the tool-carrying assembly D is built and how, in this assembly,
it is possible to obtain fine adjustment of the position of the tools associated thereto.
[0017] In what follows, a detailed description will be provided of the tool-carrying assembly
D in the embodiment of the invention that is illustrated in Figures 1 to 4.
[0018] The tool-carrying assembly D comprises a main body 16, made of metal material and
presenting a prismatic conformation, which is mounted so that it can slide within
the channel-section portion C of the base structure B. The main body 16 has (see Figures
3 and 4), on its top surface, a blind hole 17, in which a screw 1 is screwed that
has the function of fixing a threaded pin 2 to the main body 16 (see Figures 2 and
4), the said threaded pin 2 having a top head 2a of enlarged diameter, and a threaded
bottom portion 2b.
[0019] The threaded pin 2 is secured by the screw 1 to the main body 16 with interposition
of a disk 4 (see again Figures 2 and 4), the function of which will emerge clearly
from what follows, and a centring hub 6 which is received in a slot 26 (see Figure
3) made on the top surface of the main body 16. The screw 1 passes through the disk
4 and the centring hub 6 with interposition of a bushing 7.
[0020] With reference to Figures 3 and 4, numbers 14 and 15 designate two cutting tools
carried by the assembly D, which are used for clinching of the metal terminal respectively
to the stripped conductor and to the insulating sheath of an electric wire or cable.
The two tools 14, 15 take the form of metal blades and cooperate with an anvil 18
fixed to the base structure B designed to support the metal terminal in order to enable
clinching of the terminal on the electric wire or cable.
[0021] The annexed drawings do not illustrate the electric wire or the terminal that is
to be clinched onto it, in so far as the said components can be of any known type.
An example of such components is provided in Figures 2 and 3 of the document EP-A-0
542 144.
[0022] Again with reference to Figure 3, the first cutting tool 14 designed for clinching
the metal terminal on the conductor of the electric wire is rigidly connected to the
main body 16 by means of a screw 29 which engages a hole 14a of the tool 14 and a
threaded hole 16a of the main body 16 (see also Figure 4). The tool 15, which is used
for clinching the terminal to the insulating sheath, is instead able to move in a
limited way in a direction parallel to the axis G of the device, in that it has an
eyelet 15a slidably engaged on the screw 29 with interposition of a bushing 28 (see
Figures 3 and 4). The cutting tool 15 has a top tooth 15b which is in contact with
a slider 8. The slider 8 is mounted so that it can slide in a direction parallel to
the axis G of the device between two flanges 16b of the main body 16 (see Figure 3)
and is limited in said movement by the engagement within an eyelet 8a of its own of
the shank of a screw 27 secured to the main body 16 in a direction transverse to the
axis G.
[0023] The means for adjustment of the two cutting tools 14, 15 comprise a first ring 3
and a second ring 5, which are mounted so that they can turn independently of one
another about the axis G on the tool-carrying assembly D in the way that is described
hereinafter.
[0024] The first ring 3, the purpose of which is to control adjustment of the first cutting
tool 14 designed for clinching the metal terminal on the copper conductor of the electric
wire, has an annular body with a threaded internal surface 3a (see Figure 2, which
illustrates the ring 3 also in the reversed position) screwed on the threaded portion
2b of the pin 2.
[0025] The top face 3b (Figure 2) of the first ring 3 defines the contrast surface to which
the thrust exerted by the ram of the press is applied by means of the connection element
E. The said element has, in a way of itself known, two bottom feet E1 which engage
under the head 2a of the threaded pin 2 with an axial play with respect to the distance
existing between the head 2a and the threaded portion 2b of the pin 2 (see Figure
4). In this way, during operative travel downwards of the ram of the press, the thrust
is transmitted from the connection element E to the top face of the ring 3, thus causing,
by means of the pin 2, the disk 4, and the centring hub 6, movement of the main body
16 with the tools 14, 15 associated thereto. During return travel upwards of the ram
of the press, the two feet E1 engage under the head 2a of the pin 2, pushing the entire
tool-carrying assembly D upwards.
[0026] A rotation of the first ring 3 with respect to the threaded pin 2 determines a variation
in the axial position of the ring 3 with respect to the pin 2 as a result of the threaded
connection existing between the pin 2 and the ring 3. Consequently, the position of
the two tools 14, 15 with respect to the contrast surface 3b of the ram of the press
is varied. In this way, an adjustment of the tool 14 designed for clinching the terminal
onto the conductor of the wire is obtained without altering the relative position
between the tool 14 and the other tool 15 designed for clinching the terminal onto
the insulating sheath.
[0027] The positions of end-of-travel of rotation of the ring 3 are defined by the engagement
of a tooth 21, which projects radially from the peripheral edge of the fixed disk
4, with a tooth 23 that protrudes radially inwards from a bottom skirt 3c of the first
ring 3 (see Figure 2).
[0028] Moreover provided are indexing means for indexation of the rotation of the ring 3.
These means comprise a toothing 3d (see the enlarged view in Figure 2) made on the
crest of the thread in the inner surface 3a of the ring 3. The said toothing co-operates
with an engagement tooth 10 that is inserted into a housing 19 (Figure 2) of the threaded
pin 2 and is pushed radially by a helical spring 12 against the toothing 3d. Of course,
the maximum possible displacement upwards of the ring 3 with respect to the threaded
pin 2b is not in any case such as to disengage the tooth 10, which is housed at the
base of the threaded pin 2, from the inner surface of the ring 3. The same of course
applies also as regards engagement of the end-of-travel tooth 23 of the ring 3 on
the tooth 21 of the fixed disk 4.
[0029] Finally, the outer surface of the ring 3 carries a knurling 3e as an aid to gripping
the ring and further preferably has a graduated scale (not illustrated) which serves
as a reference of the angular position of the ring.
[0030] In what follows, the conformation and arrangement of the second ring 5 will be described.
Also this ring has an annular body mounted so that it can turn about the centring
hub 6 between the top surface of the main body 16 and the bottom surface of the disk
4 (see Figures 2 and 4). The ring 5 has, on its bottom face (also illustrated in Figure
2), a helical plane ramp 24a, which is in operative contact with the slider 8 (Figures
3 and 4) that controls the position of the tool 15 for clinching of the terminal to
the insulating sheath of the electric wire. A rotation of the second ring 5, which
is in an axially fixed position with respect to the main body 16, consequently causes
a variation in the axial position of the slider 8 and of the tool 15 controlled by
the latter, the said tool 15 thus changing its position with respect to the tool 14,
which is fixed with respect to the main body 16. Also in this case, the positions
of end-of-travel of rotation of the ring 5 are defined by the engagement of an arrest
member 9, received in a top slot 20b (Figure 2) of the centring hub 6, on an internal
radial tooth 24 of the second ring 5. The arrest element 9 extends axially also through
a radial slot 25 of the disk 4 to provide a reference for the correct angular position
of mounting of the disk 4 with respect to the centring hub 6, the angular position
of which is, instead, uniquely determined by engagement within the slot 26 on the
top surface of the main body 16. Also for the ring 5 there are provided indexing means
for indexation of rotation, the said means comprising a toothing 5a made on the inner
surface of the ring 5, which co-operates with an engagement tooth 11 that is inserted
in a front slot 20a of the centring hub 6, located in a position diametrically opposite
to the slot 20b, and that is pushed radially against the toothing 5a by a helical
spring 13 set between the engagement element 11 and the wall of the bushing 7. Finally,
also the ring 5 has, on its outer surface, a knurling 5b (Figure 2) and preferably
a graduated scale (not illustrated).
[0031] As is evident from the foregoing description, in the device illustrated in Figures
1 to 4, the position of the cutting tool 14 for clinching of the terminal to the copper
conductor of the electric wire may be varied by rotation of the first ring 3 as a
result of its threaded connection on the pin 2. During the movement of adjustment,
the tool 15 for clinching of the terminal to the insulating sheath of the electric
wire moves together with the tool 14, without therefore there occurring a variation
in the relative position of the two tools. When, instead, it is desired to vary only
the position of the tool 15 for clinching the terminal to the insulating sheath of
the electric wire, it is necessary to act on the second ring 5, which determines the
desired movement of adjustment as a result of the frontal engagement between the helical
ramp 24a and the slider 8.
[0032] There will now follow a description of the structure and operation of the second
embodiment of the device according to the invention, illustrated in Figures 5-7. In
these figures, the parts that are the same as the parts of Figures 1 to 4 or have
corresponding functions are designated by the same reference numbers.
[0033] The main difference of the embodiment illustrated in Figures 5-7 with respect to
the first embodiment described previously lies in the fact that, in the case of the
device illustrated in Figures 5-7 also the second adjustment ring 5 has an annular
body with an internal thread 50 (Figure 5) screwed on a second threaded pin 70, which
is also rigidly connected to the main body 16 of the tool-carrying assembly D. In
addition, as may be seen from Figures 5 and 7, the threaded pin 2 of the first embodiment
is replaced by two separate elements: an internally threaded bushing 2b, which performs
the function of the threaded portion 2b of the pin 2 of Figure 2, and a bushing 2
inserted through the threaded bushing 2b and having a top head 2a that performs the
function of the head 2a of the pin 2 of Figure 2. The bushing 2 is moreover inserted
through the central hole of the fixed disk 4 and through the central through hole
of the second threaded pin 70. The assembly made up of the bushing 2, the threaded
bushing 2b, the disk 4, and the second threaded pin 70 is rigidly connected to the
main body 16 by means of the screw 1. As in the case of the first embodiment, the
first adjustment ring 3 is engaged by screwing on the first threaded pin 2b in such
a way that a rotation of the ring 3 causes an axial displacement of the top face 3b
of the ring 3, on which there is applied the thrust exerted by the ram of the press,
with respect to the main body 16 to which are associated the two cutting tools 14,
15. Also in this case, the outer surface of the ring 3 has a knurling 3e and is preferably
provided with a graduated scale (not illustrated). Also in this case, rotation of
the ring 3 is indexed by means of engagement, on a toothing made on the crest of the
internal thread of the ring 3, which is altogether similar to the knurling 3d (illustrated
in Figure 2), of an engagement element 10 that is housed in an internal slot 19 of
the ring 3 and is pushed by a spring 12 against the thread of the threaded bushing
2b. The spring 12 is withheld externally by a threaded grub screw 110. The threaded
grub screw 110 also performs the function of co-operating with a tooth 21 projecting
upwards from the peripheral edge of the fixed disk 4 to define the positions of end-of-travel
of rotation of the ring 3. The fixed disk 4 also has a tooth 9 which projects downwards
from its peripheral edge, in a position diametrically opposite to the tooth 21, and
which co-operates with a radial tooth 24 made on a top end surface of the second ring
5 to define the positions of end-of-travel of rotation of said ring.
[0034] Whilst in the case of the first embodiment illustrated in Figures 1-4, the second
ring 5 always remains in the same axial position and determines the displacement of
the cutting tool 15 by means of its helical plane ramp 24a, in the case of the second
embodiment illustrated in Figures 5-7, the second adjustment ring 5 changes its axial
position following upon its rotation, in so far as it is engaged by screwing on the
second threaded pin 17. As may be clearly seen in Figure 7, the axial displacement
of the second ring 5 has, however, no effect on the axial position of the first ring
3 and, instead, directly causes a displacement of the tool 15 by means of the direct
engagement of the bottom surface of the ring 5 on the top end of the slider 8 (Figure
7). Consequently, also in this case adjustment of the ring 5 only causes a movement
of adjustment of the tool 15, without affecting the position of the tool 14 used for
clinching the terminal to the copper conductor.
[0035] The fixed disk 4 has, also in the vicinity of its centre, two tabs 230, 240 which
are respectively turned upwards and turned downwards, one of these tabs engaging a
seat 270 in the threaded bushing 2b, and the other tab engaging a seat 280 on the
top end of the second threaded pin 70 so as to provide a reference for the correct
angular position of the two threaded pins 2b, 70. The pin 70, in turn, rests on the
top surface of the main body 16 and has a prismatic ridge 290 engaged within the top
slot 26 of the main body 16 so as to provide a reference for the correct angular position
of the second threaded pin 70 with respect to the main body 16.
[0036] Also rotation of the second ring 5 is indexed, in that the thread on the inner surface
50 of the ring 5 also has a knurling similar to the knurling 3d that may be seen in
Figure 2. The said knurling is engaged by an engagement element 11 which is received
in a slot 20 made at the top on the second threaded pin 70 and which is pressed radially
outwards by a spring 13 against the inner threaded wall of the ring 5. Furthermore,
also the ring 5 has an external knurling 5b and preferably a graduated scale (not
illustrated). Finally, the part for supporting the two cutting tools 14, 15 is altogether
identical to the one illustrated in Figure 3 for the first embodiment of the invention.
[0037] Also the operation of the second embodiment is altogether similar to that of the
first embodiment, except for the differences referred to above as regards the threaded
connection of the second ring 5 on the second threaded pin 70 and for the way in which
the second ring 5 causes a movement of adjustment of the second cutting tool 15.
[0038] Of course, without prejudice to the principle of the invention, the details of construction
and the embodiments may vary widely with respect to what is described and illustrated
herein purely by way of example, without thereby departing from the scope of the present
invention.
1. An applicator device for clinching a metal terminal both on the stripped conductor
and on the insulating sheath of a portion of an electric wire or cable, said device
comprising:
- a fixed base structure (B), and
- a tool-carrying assembly (D), which is mounted so that it can slide on the base
structure (B) along a main axis (G) and is designed to be associated to a control
member, for example a ram of a press, which moves with reciprocating motion along
said main axis (G),
in which said tool-carrying assembly includes:
- a contrast surface (3b), designed to receive the thrust exerted by the ram of the
press;
- a first cutting tool (14) and a second cutting tool (15), which extend parallel
to said main axis (G) and are mobile with the tool-carrying assembly (D) following
upon activation of the press, in order to carry out clinching of a metal terminal
respectively on the conductor and on the insulating sheath of an electric wire or
cable; and
- means for adjusting the position of the first tool (14) and the second tool (15),
in the direction of said main axis (G), with respect to said contrast surface (3b),
in which said adjustment means comprise a first ring (3) and a second ring (5)
mounted so that they can turn on the tool-carrying assembly (D), about said main axis
(G), independently of one another to control, respectively, adjustment of at least
one of the two tools (14, 15) and adjustment of at least the other tool (15), which
has the function of clinching the terminal to the insulating sheath,
characterized in that:
at least said first adjusting ring (3) has a central opening with an internally threaded
surface, engaged by screwing on a first threaded pin (2b), which is axially fixed
with respect to a main body (16) of the tool-carrying assembly in such a way that
a rotation of said first ring (3) causes a variation in the axial position of said
first ring (3) with respect to both of the tools (14, 15), the position of said first
ring (3) defining uniquely the position of said contrast surface (3b), to which the
thrust of the control member is applied.
2. The device according to Claim 1, characterized in that also said second ring (5) has a central opening with an internally threaded surface,
engaged by screwing on a second threaded pin (70), which is axially fixed with respect
to a main body (16) of the tool-carrying assembly (D), said second ring (5) being
operatively in contact with just the tool (15) for clinching on the insulator in such
a way that rotation of the second ring (5) causes an axial adjustment of just the
second tool (15) with respect to the contrast surface (3b) to which the thrust of
the control member is applied.
3. The device according to Claim 1, characterized in that said second ring (5) has a front face presenting a helical plane ramp (24a) which
is operatively in frontal contact with just the tool (15) for clinching on the insulator
in such a way that rotation of the second ring (5) causes an axial adjustment of just
the second tool (15) with respect to the contrast surface (3b) to which the thrust
of the control member is applied.
4. The device according to Claim 1, characterized in that between said first threaded pin (2b) and the internal threaded surface (3a) of said
first ring (3) there are set means for reference and for maintaining the angular position
of adjustment of the first ring (3), comprising a toothing (3d) made on one of said
two elements and an engagement member (10) carried by the other element and pushed
radially by elastic means (12) against said toothing (3d), in such a way as to obtain
an indexation of the rotation of the first ring.
5. The device according to Claim 2, characterized in that between said second threaded pin (70) and the internal threaded surface (50) of said
second ring (5) there are set means for reference and for maintaining the angular
position of adjustment of the second ring (5), comprising a toothing made on one of
said two elements and an engagement member (11) carried by the other element and pushed
radially by elastic means (13) against said toothing, in such a way as to obtain an
indexation of the rotation of the second ring.
6. The device according to Claim 1, characterized in that between said first ring (3) and said second ring (5) there is set a disk (4) fixed
with respect to the main body (16) of the tool-carrying assembly, said disk (4) and
said first ring (3) having respective teeth (21, 23; 21, 110) designed to enter into
contact with one another to define the positions of end-of-travel of rotation of the
first ring.
7. The device according to Claim 2, characterized in that between said first ring (3) and said second ring (5) there is set a disk (4) fixed
with respect to the main body (16) of the tool-carrying assembly (D), said disk (4)
and said first ring (3) having respective teeth (21, 110) designed to enter into contact
with one another to define the positions of end-of-travel of rotation of the first
ring, said disk (4) and said second ring (5) moreover having respective teeth (9,
24) designed to enter into contact with one another to define the positions of end-of-travel
of rotation of the second ring.
1. Applikatorvorrichtung zum Anpressen eines metallischen Endanschlusses sowohl an den
freigelegten Leiter als auch an die Isolierhülle eines Abschnittes eines elektrischen
Drahtes oder Kabels, wobei genannte Vorrichtung aufweist:
- eine feststehende Grundkonstruktion (B) und
- eine Werkzeugträgereinheit (D), die so angeordnet ist, dass sie an der Grundkonstruktion
(B) längs einer Hauptachse (G) gleiten kann und so ausgelegt ist, dass sie mit einem
Steuerglied verbunden ist, beispielsweise einem Stößel einer Presse, welcher sich
in hin- und hergehender Bewegung längs der genannten Hauptachse (G) bewegt,
wobei die genannte Werkzeugträgereinheit beinhaltet:
- eine Gegenfläche (3b), die so ausgelegt ist, dass sie die durch den Stößel der Presse
ausgeübte Druckkraft aufnimmt;
- ein erstes Schneidwerkzeug (14) und ein zweites Schneidwerkzeug (15), die sich parallel
zur genannten Hauptachse (G) erstrecken und bei Betätigung der Presse mit der Werkzeugträgereinheit
(D) beweglich sind, um das Anpressen eines metallischen Endanschlusses an den Leiter
bzw. an die Isolierhülle eines elektrischen Drahtes oder Kabels auszuführen, und
- ein Mittel, um die Position des ersten Werkzeuges (14) und des zweiten Werkzeuges
(15) in Richtung der genannten Hauptachse (G) relativ zu der genannten Gegenfläche
(3b) einzustellen,
- wobei das genannte Einstellmittel einen ersten Ring (3) und einen zweiten Ring (5)
umfaßt, die so angeordnet sind, dass sie sich an der Werkzeugträgereinheit (D) um
die genannte Hauptachse (G) unabhängig voneinander drehen können, um die Einstellung
von jeweils zumindest einem der zwei Werkzeuge (14, 15) bzw. die Einstellung von zumindest
dem jeweils anderen Werkzeuges (15) zu steuern, welches die Funktion des Anpressens
des Endanschlusses an die Isolierhülle besitzt,
dadurch gekennzeichnet, dass:
zumindest der genannte erste Einstellring (3) eine zentrale Öffnung mit einer mit
Innengewinde versehenen Fläche besitzt, mit der ein eingeschraubter erster Gewindestift
(2b) in Eingriff ist, welcher relativ zu einem Hauptkörper (16) der Werkzeugträgereinheit
in der Weise axial festgelegt ist, dass eine Drehung des genannten ersten Ringes (3)
eine Veränderung der axialen Position des genannten ersten Ringes (3) relativ zu beiden
Werkzeugen (14, 15) bewirkt, wobei die Position des genannten ersten Ringes (3) einzig
die Position der genannten Gegenfläche (3b) definiert, auf die die Druckkraft des
Steuergliedes ausgeübt wird.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass auch der genannte zweite Ring (5) eine zentrale Öffnung mit einer Fläche mit Innengewinde
aufweist, mit der ein eingeschraubter zweiter Gewindestift (70) in Eingriff ist, welcher
axial relativ zu einem Hauptkörper (16) der Werkzeugträgereinheit (D) festgelegt ist,
wobei genannter zweiter Ring (5) wirkungsmäßig mit eben dem Werkzeug (15) für das
Anpressen an die Isolation in solcher Weise in Berührung ist, dass die Drehung des
zweiten Ringes (5) eine axiale Einstellung eben des zweiten Werkzeuges (15) relativ
zu der Gegenfläche (3b) bewirkt, auf die die Druckkraft des Steuergliedes ausgeübt
wird.
3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der genannte zweite Ring (5) eine Frontseite mit einer schraubenartigen Rampe (24a)
besitzt, welche wirkungsmäßig mit eben dem Werkzeug (15) für das Anpressen an die
Isolation in der Weise in frontaler Berührung ist, dass die Drehung des zweiten Ringes
(5) eine axiale Einstellung gerade des zweiten Werkzeuges (15) relativ zu der Gegenfläche
(3b) bewirkt, auf die die Druckkraft des Steuergliedes ausgeübt wird.
4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass zwischen den genannten ersten Gewindestift (2b) und die Fläche (3a) mit Innengewinde
des genannten ersten Ringes (3) Mittel eingesetzt sind für den Hinweis auf die und
das Beibehalten der Winkelposition der Einstellung des ersten Ringes (3), mit einer
Verzahnung (3b), die an einem der zwei Elemente ausgebildet ist, und einem Eingriffsglied
(10), das von anderem Element getragen und durch ein Federmittel (12) radial gegen
die genannte Verzahnung (3d) in solcher Weise gedrückt wird, dass eine Indexierung
der Drehung des ersten Ringes erhalten wird.
5. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass zwischen den genannten zweiten Gewindestift (70) und die Fläche (50) mit Innengewinde
des genannten zweiten Ringes (5) Mittel eingesetzt sind für Hinweis auf die und das
Beibehalten der Winkelposition der Einstellung des zweiten Ringes (5), mit einer Verzahnung,
die an einem der genannten zwei Elemente ausgebildet ist, und einem Eingriffsglied
(11), das vom anderen Element getragen und radial mittels eines Federmittels (13)
gegen die genannte Verzahnung hin in solcher Weise gedrückt wird, dass eine Indexierung
der Drehung des zweiten Ringes erhalten wird.
6. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass zwischen den genannten ersten Ring (3) und den genannten zweiten Ring (5) eine Scheibe
(4) eingesetzt ist, die relativ zum Hauptkörper (16) der Werkzeugträgereinheit festgelegt
ist, wobei genannte Scheibe (4) und der genannte erste Ring (3) betreffende Zähne
(21, 23; 21, 110) besitzen, die so ausgebildet sind, dass sie miteinander in Kontakt
treten, um die Positionen des Bewegungsendes der Drehung des ersten Ringes zu definieren.
7. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass zwischen den genannten ersten Ring (3) und den genannten zweiten Ring (5) eine Scheibe
(4) eingesetzt ist, die relativ zum Hauptkörper (16) der Werkzeugeträgereinheit (D)
festgelegt ist, wobei genannte Scheibe (4) und genannter erster Ring (3) betreffende
Zähne (21, 110) besitzen, die so ausgebildet sind, dass sie miteinander in Kontakt
treten, um die Positionen des Bewegungsendes der Drehung des ersten Ringes zu definieren,
wobei genannte Scheibe (4) und genannter zweiter Ring (5) außerdem betreffende Zähne
(9, 24) aufweisen, die so ausgebildet sind, dass sie miteinander in Kontakt treten,
um die Positionen des Bewegungsendes der Drehung des zweiten Ringes zu definieren.
1. Dispositif applicateur pour sertir une borne métallique à la fois sur le conducteur
dénudé et sur la gaine isolante d'une portion d'un fil ou d'un câble électrique, ledit
dispositif comprenant :
-- une structure de base fixe (B), et
-- un ensemble porte-outils (D), qui est monté de manière à pouvoir coulisser sur
la structure de base (B) le long d'un axe principal (G) et qui est conçu pour être
associé à un élément de commande, par exemple un vérin d'une presse, qui se déplace
avec un mouvement de va-et-vient le long dudit axe principal (G),
dans lequel ledit ensemble porte-outils inclut :
-- une surface de contraste (3b), conçue pour recevoir la poussée exercée par le vérin
de la presse ;
-- un premier outil de coupe (14) et un second outil de coupe (15), qui s'étendent
parallèlement audit axe principal (G) et qui sont mobiles avec l'ensemble porte-outils
(D) à la suite de l'activation de la presse, afin de procéder au sertissage d'une
borne métallique respectivement sur le conducteur et sur la gaine isolante d'un fil
ou d'un câble électrique ; et
-- des moyens pour ajuster la position du premier outil (14) et du second outil (15),
dans la direction dudit axe principal (G), par rapport à ladite surface de contraste
(3b),
dans lequel lesdits moyens d'ajustement comprennent une première bague (3) et une
seconde bague (5) montées de manière à pouvoir tourner sur l'ensemble porte-outils
(D), autour dudit axe principal (G), indépendamment l'une de l'autre pour commander,
respectivement, l'ajustement de l'un au moins des deux outils (14, 15) et l'ajustement
de l'autre outil (15) au moins, qui a pour fonction de sertir la borne sur la gaine
isolante,
caractérisé en ce que :
au moins ladite première bague d'ajustement (3) présente une ouverture centrale avec
une surface intérieure taraudée, engagée par vissage sur une première tige filetée
(2b), laquelle est axialement fixée par rapport à un corps principal (16) de l'ensemble
porte-outils de telle façon qu'une rotation de ladite première bague (3) provoque
une variation de la position axiale de ladite première bague (3) par rapport aux deux
outils (14, 15), la position de ladite première bague (3) définissant uniquement la
position de ladite surface de contraste (3b) à laquelle est appliquée la poussée de
l'élément de commande.
2. Dispositif selon la revendication 1, caractérisé en ce que ladite seconde bague (5) également présente une ouverture centrale avec une surface
intérieure taraudée, engagée par vissage sur une seconde tige filetée (70), laquelle
est axialement fixée par rapport à un corps principal (16) de l'ensemble porte-outils
(D), ladite seconde bague (5) étant fonctionnellement en contact de l'uniquement avec
l'outil (15) pour le sertissage sur l'isolant, de telle façon qu'une rotation de la
seconde bague (5) provoque un ajustement axial du second outil (15) uniquement par
rapport à la surface de contraste (3b) à laquelle est appliquée la poussée de l'élément
de commande.
3. Dispositif selon la revendication 1, caractérisé en ce que ladite seconde bague (5) possède une face frontale présentant une rampe plane hélicoïdale
(24a) qui est fonctionnellement en contact frontal uniquement avec l'outil (15) pour
le sertissage sur l'isolant, d'une telle façon qu'une rotation de la seconde bague
(5) provoque un ajustement axial du second outil (15) uniquement par rapport à la
surface de contraste (3b) a laquelle est appliquée la poussée de l'élément de commande.
4. Dispositif selon la revendication 1, caractérisé en ce que, entre ladite première tige filetée (2b) et la surface interne taraudée (3a) de ladite
première bague (3), sont placés des moyens pour une référence et pour maintenir la
position d'ajustement angulaire de la première bague (3), comprenant une denture (3d)
ménagée sur l'un desdits deux éléments, et un élément d'engagement (10) porté par
l'autre élément et poussé radialement par des moyens élastiques (12) contre ladite
denture (3b), de manière à obtenir une indexation de la rotation de la première bague.
5. Dispositif selon la revendication 2, caractérisé en ce que, entre ladite seconde tige filetée (70) et la surface interne taraudée (50) de ladite
seconde bague (5), sont placés des moyens pour une référence et pour maintenir la
position d'ajustement angulaire de la seconde bague (5), comprenant une denture ménagée
sur l'autre desdits deux éléments et un élément d'engagement (11) porté par l'autre
élément et poussé radialement par des moyens élastiques (13) contre ladite denture,
de manière à obtenir une indexation de la rotation de la seconde bague.
6. Dispositif selon la revendication 1, caractérisé en ce que, entre ladite première bague (3) et ladite seconde bague (5), est placé un disque
(4) fixé par rapport au corps principal (16) de l'ensemble porte-outils, ledit disque
(4) et ladite première bague (3) ayant des dents respectives (21, 23 ; 21, 110) conçues
pour entrer en contact les unes avec les autres pour définir les positions de fin
de course en rotation de la première bague.
7. Dispositif selon la revendication 2, caractérisé en ce que, entre ladite première bague (3) et ladite seconde bague (5), est placé un disque
(4) fixé par rapport au corps principal (16) de l'ensemble porte-outils (D), ledit
disque (4) et ladite première bague (3) ayant des dents respectives (21, 110) conçues
pour entrer en contact les unes avec les autres pour définir les positions de fin
de course en rotation de la première bague, ledit disque (4) et ladite seconde bague
(5) ayant en outre des dents respectives (9, 24) conçues pour entrer en contact les
unes avec les autres pour définir les positions de fin de course en rotation de la
seconde bague.