EP1223646B1 - Terminal applicator device for attaching terminal to electric wires or cables - Google Patents
Terminal applicator device for attaching terminal to electric wires or cables Download PDFInfo
- Publication number
- EP1223646B1 EP1223646B1 EP01830686A EP01830686A EP1223646B1 EP 1223646 B1 EP1223646 B1 EP 1223646B1 EP 01830686 A EP01830686 A EP 01830686A EP 01830686 A EP01830686 A EP 01830686A EP 1223646 B1 EP1223646 B1 EP 1223646B1
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- EP
- European Patent Office
- Prior art keywords
- ring
- tool
- respect
- rotation
- adjustment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/048—Crimping apparatus or processes
- H01R43/0488—Crimping apparatus or processes with crimp height adjusting means
Definitions
- the present invention relates to applicator devices for attaching terminals on electric wires or cables.
- 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.
- the invention regards an applicator device of the known type, comprising:
- Applicator devices of the type specified above have been known and used for some time.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- first threaded pin 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.
- 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.
- 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.
- 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.
- Figures 1-4 illustrate a first example of embodiment of the device according to the invention.
- 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.
- 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.
- a tool-carrying assembly D 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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).
- 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.
- the two feet E1 engage under the head 2a of the pin 2, pushing the entire tool-carrying assembly D upwards.
- 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.
- 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).
- indexing means for indexation of the rotation of the ring 3. 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.
- 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.
- 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.
- 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.
- 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.
- indexing means for indexation of rotation 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.
- the ring 5 has, on its outer surface, a knurling 5b ( Figure 2) and preferably a graduated scale (not illustrated).
- 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.
- 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.
- 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.
- 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.
- the outer surface of the ring 3 has a knurling 3e and is preferably provided with a graduated scale (not illustrated).
- 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.
- the second ring 5 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.
- 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 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.
- 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.
- the ring 5 has an external knurling 5b and preferably a graduated scale (not illustrated).
- 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.
- 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.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Processing Of Terminals (AREA)
- Insulated Conductors (AREA)
- Wire Bonding (AREA)
- Installation Of Indoor Wiring (AREA)
- Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
- Communication Cables (AREA)
Abstract
Description
- 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.
- 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,
- 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,
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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. Themain body 16 has (see Figures 3 and 4), on its top surface, ablind hole 17, in which ascrew 1 is screwed that has the function of fixing a threadedpin 2 to the main body 16 (see Figures 2 and 4), the said threadedpin 2 having a top head 2a of enlarged diameter, and a threadedbottom portion 2b. - The threaded
pin 2 is secured by thescrew 1 to themain 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 acentring hub 6 which is received in a slot 26 (see Figure 3) made on the top surface of themain body 16. Thescrew 1 passes through the disk 4 and thecentring hub 6 with interposition of abushing 7. - With reference to Figures 3 and 4,
numbers tools 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. - 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.
- 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 themain body 16 by means of ascrew 29 which engages a hole 14a of thetool 14 and a threadedhole 16a of the main body 16 (see also Figure 4). Thetool 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 aneyelet 15a slidably engaged on thescrew 29 with interposition of a bushing 28 (see Figures 3 and 4). Thecutting tool 15 has a top tooth 15b which is in contact with aslider 8. Theslider 8 is mounted so that it can slide in a direction parallel to the axis G of the device between twoflanges 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 ascrew 27 secured to themain body 16 in a direction transverse to the axis G. - The means for adjustment of the two
cutting tools first ring 3 and asecond 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. - The
first ring 3, the purpose of which is to control adjustment of thefirst 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 thering 3 also in the reversed position) screwed on the threadedportion 2b of thepin 2. - The
top face 3b (Figure 2) of thefirst 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 threadedpin 2 with an axial play with respect to the distance existing between the head 2a and the threadedportion 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 thering 3, thus causing, by means of thepin 2, the disk 4, and thecentring hub 6, movement of themain body 16 with thetools pin 2, pushing the entire tool-carrying assembly D upwards. - A rotation of the
first ring 3 with respect to the threadedpin 2 determines a variation in the axial position of thering 3 with respect to thepin 2 as a result of the threaded connection existing between thepin 2 and thering 3. Consequently, the position of the twotools contrast surface 3b of the ram of the press is varied. In this way, an adjustment of thetool 14 designed for clinching the terminal onto the conductor of the wire is obtained without altering the relative position between thetool 14 and theother tool 15 designed for clinching the terminal onto the insulating sheath. - The positions of end-of-travel of rotation of the
ring 3 are defined by the engagement of atooth 21, which projects radially from the peripheral edge of the fixed disk 4, with atooth 23 that protrudes radially inwards from a bottom skirt 3c of the first ring 3 (see Figure 2). - 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 thering 3. The said toothing co-operates with anengagement tooth 10 that is inserted into a housing 19 (Figure 2) of the threadedpin 2 and is pushed radially by ahelical spring 12 against the toothing 3d. Of course, the maximum possible displacement upwards of thering 3 with respect to the threadedpin 2b is not in any case such as to disengage thetooth 10, which is housed at the base of the threadedpin 2, from the inner surface of thering 3. The same of course applies also as regards engagement of the end-of-travel tooth 23 of thering 3 on thetooth 21 of the fixed disk 4. - Finally, the outer surface of the
ring 3 carries aknurling 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. - 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 thecentring hub 6 between the top surface of themain body 16 and the bottom surface of the disk 4 (see Figures 2 and 4). Thering 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 thetool 15 for clinching of the terminal to the insulating sheath of the electric wire. A rotation of thesecond ring 5, which is in an axially fixed position with respect to themain body 16, consequently causes a variation in the axial position of theslider 8 and of thetool 15 controlled by the latter, the saidtool 15 thus changing its position with respect to thetool 14, which is fixed with respect to themain body 16. Also in this case, the positions of end-of-travel of rotation of thering 5 are defined by the engagement of anarrest member 9, received in a top slot 20b (Figure 2) of thecentring hub 6, on an internalradial tooth 24 of thesecond ring 5. Thearrest element 9 extends axially also through aradial slot 25 of the disk 4 to provide a reference for the correct angular position of mounting of the disk 4 with respect to thecentring hub 6, the angular position of which is, instead, uniquely determined by engagement within theslot 26 on the top surface of themain body 16. Also for thering 5 there are provided indexing means for indexation of rotation, the said means comprising a toothing 5a made on the inner surface of thering 5, which co-operates with anengagement tooth 11 that is inserted in a front slot 20a of thecentring hub 6, located in a position diametrically opposite to the slot 20b, and that is pushed radially against the toothing 5a by ahelical spring 13 set between theengagement element 11 and the wall of thebushing 7. Finally, also thering 5 has, on its outer surface, aknurling 5b (Figure 2) and preferably a graduated scale (not illustrated). - 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 thefirst ring 3 as a result of its threaded connection on thepin 2. During the movement of adjustment, thetool 15 for clinching of the terminal to the insulating sheath of the electric wire moves together with thetool 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 thetool 15 for clinching the terminal to the insulating sheath of the electric wire, it is necessary to act on thesecond ring 5, which determines the desired movement of adjustment as a result of the frontal engagement between the helical ramp 24a and theslider 8. - 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.
- 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 threadedpin 70, which is also rigidly connected to themain body 16 of the tool-carrying assembly D. In addition, as may be seen from Figures 5 and 7, the threadedpin 2 of the first embodiment is replaced by two separate elements: an internally threadedbushing 2b, which performs the function of the threadedportion 2b of thepin 2 of Figure 2, and abushing 2 inserted through the threadedbushing 2b and having a top head 2a that performs the function of the head 2a of thepin 2 of Figure 2. Thebushing 2 is moreover inserted through the central hole of the fixed disk 4 and through the central through hole of the second threadedpin 70. The assembly made up of thebushing 2, the threadedbushing 2b, the disk 4, and the second threadedpin 70 is rigidly connected to themain body 16 by means of thescrew 1. As in the case of the first embodiment, thefirst adjustment ring 3 is engaged by screwing on the first threadedpin 2b in such a way that a rotation of thering 3 causes an axial displacement of thetop face 3b of thering 3, on which there is applied the thrust exerted by the ram of the press, with respect to themain body 16 to which are associated the twocutting tools ring 3 has aknurling 3e and is preferably provided with a graduated scale (not illustrated). Also in this case, rotation of thering 3 is indexed by means of engagement, on a toothing made on the crest of the internal thread of thering 3, which is altogether similar to the knurling 3d (illustrated in Figure 2), of anengagement element 10 that is housed in aninternal slot 19 of thering 3 and is pushed by aspring 12 against the thread of the threadedbushing 2b. Thespring 12 is withheld externally by a threadedgrub screw 110. The threadedgrub screw 110 also performs the function of co-operating with atooth 21 projecting upwards from the peripheral edge of the fixed disk 4 to define the positions of end-of-travel of rotation of thering 3. The fixed disk 4 also has atooth 9 which projects downwards from its peripheral edge, in a position diametrically opposite to thetooth 21, and which co-operates with aradial tooth 24 made on a top end surface of thesecond ring 5 to define the positions of end-of-travel of rotation of said ring. - 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 thecutting tool 15 by means of its helical plane ramp 24a, in the case of the second embodiment illustrated in Figures 5-7, thesecond adjustment ring 5 changes its axial position following upon its rotation, in so far as it is engaged by screwing on the second threadedpin 17. As may be clearly seen in Figure 7, the axial displacement of thesecond ring 5 has, however, no effect on the axial position of thefirst ring 3 and, instead, directly causes a displacement of thetool 15 by means of the direct engagement of the bottom surface of thering 5 on the top end of the slider 8 (Figure 7). Consequently, also in this case adjustment of thering 5 only causes a movement of adjustment of thetool 15, without affecting the position of thetool 14 used for clinching the terminal to the copper conductor. - The fixed disk 4 has, also in the vicinity of its centre, two
tabs seat 270 in the threadedbushing 2b, and the other tab engaging aseat 280 on the top end of the second threadedpin 70 so as to provide a reference for the correct angular position of the two threadedpins pin 70, in turn, rests on the top surface of themain body 16 and has aprismatic ridge 290 engaged within thetop slot 26 of themain body 16 so as to provide a reference for the correct angular position of the second threadedpin 70 with respect to themain body 16. - Also rotation of the
second ring 5 is indexed, in that the thread on theinner surface 50 of thering 5 also has a knurling similar to the knurling 3d that may be seen in Figure 2. The said knurling is engaged by anengagement element 11 which is received in aslot 20 made at the top on the second threadedpin 70 and which is pressed radially outwards by aspring 13 against the inner threaded wall of thering 5. Furthermore, also thering 5 has anexternal knurling 5b and preferably a graduated scale (not illustrated). Finally, the part for supporting the twocutting tools - 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 threadedpin 70 and for the way in which thesecond ring 5 causes a movement of adjustment of thesecond cutting tool 15. - 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.
Claims (7)
- 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), anda 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),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; andmeans 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),
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. - 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.
- 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.
- 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.
- 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.
- 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.
- 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.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO010022 | 2001-01-16 | ||
IT2001TO000022A ITTO20010022A1 (en) | 2001-01-16 | 2001-01-16 | APPLIANCE DEVICE FOR TERMINALS ON ELECTRIC WIRES OR CABLES. |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1223646A2 EP1223646A2 (en) | 2002-07-17 |
EP1223646A3 EP1223646A3 (en) | 2003-11-12 |
EP1223646B1 true EP1223646B1 (en) | 2004-10-06 |
Family
ID=11458376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01830686A Expired - Lifetime EP1223646B1 (en) | 2001-01-16 | 2001-11-07 | Terminal applicator device for attaching terminal to electric wires or cables |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1223646B1 (en) |
AT (1) | ATE279034T1 (en) |
DE (1) | DE60106191T2 (en) |
ES (1) | ES2228787T3 (en) |
IT (1) | ITTO20010022A1 (en) |
PT (1) | PT1223646E (en) |
TR (1) | TR200402693T4 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103414084A (en) * | 2013-07-24 | 2013-11-27 | 昆山迈致治具科技有限公司 | Wire pressing jig |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI20051149A1 (en) * | 2005-06-17 | 2006-12-18 | Mecal Srl | PERFECTED POKER FOR GRAFTING DEVICES |
CN101282020B (en) * | 2007-04-06 | 2010-10-13 | 豪利士电线装配(中山)有限公司 | Method for pressing terminal and control apparatus thereof |
IT1391433B1 (en) * | 2008-09-26 | 2011-12-23 | Mecal Srl | ADJUSTMENT UNIT FOR TOOLS MOVEMENT WITH PARTICULAR RESOLUTION FOR METALLIC TERMINAL DEVICES ON ELECTRIC CABLES DEVICE PROVIDED WITH THIS UNIT |
IT1392683B1 (en) * | 2009-01-20 | 2012-03-16 | Mecal S R L | APPLICATION DEVICE FOR METAL TERMINALS ON ELECTRIC CABLES WITH CONTROLLED SEALING OF THE CODE OF THE CABLES |
ITPD20110109A1 (en) * | 2011-04-11 | 2012-10-12 | Wirmec Srl | DEVICE FOR MICROMETRIC ADJUSTMENT IN DEVICES FOR SOLDERING OF ELECTRIC TERMINALS |
CN111883995B (en) * | 2020-07-21 | 2024-09-06 | 杭州市中医院 | Fly-by-wire device for reciprocating movement of radiation field smooth finger assembly for breast cancer electron beam radiotherapy |
CN114545140B (en) * | 2022-04-25 | 2022-07-05 | 合肥航太电物理技术有限公司 | Heavy current electromagnetic pulse injection test device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL132410C (en) * | 1961-10-02 | |||
DE4137163A1 (en) * | 1991-11-12 | 1993-05-13 | Bernhard Schaefer Werkzeug Und | DEVICE FOR CONNECTING A WIRE TO A PLUG, CONTACT ELEMENT OR THE LIKE |
GB2278559B (en) * | 1993-06-01 | 1996-08-28 | Terence Robert Raynor | Continuously variable crimp height |
IT1315715B1 (en) * | 2000-06-30 | 2003-03-18 | K M I Srl | DEVICE FOR ADJUSTING THE PRESSURE OF CRIMPING INAPPLICATORS FOR CRIMPING OF TERMINALS WITH ELECTRIC CABLES. |
-
2001
- 2001-01-16 IT IT2001TO000022A patent/ITTO20010022A1/en unknown
- 2001-11-07 DE DE60106191T patent/DE60106191T2/en not_active Expired - Lifetime
- 2001-11-07 TR TR2004/02693T patent/TR200402693T4/en unknown
- 2001-11-07 PT PT01830686T patent/PT1223646E/en unknown
- 2001-11-07 EP EP01830686A patent/EP1223646B1/en not_active Expired - Lifetime
- 2001-11-07 AT AT01830686T patent/ATE279034T1/en not_active IP Right Cessation
- 2001-11-07 ES ES01830686T patent/ES2228787T3/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103414084A (en) * | 2013-07-24 | 2013-11-27 | 昆山迈致治具科技有限公司 | Wire pressing jig |
Also Published As
Publication number | Publication date |
---|---|
EP1223646A2 (en) | 2002-07-17 |
PT1223646E (en) | 2005-01-31 |
ATE279034T1 (en) | 2004-10-15 |
ITTO20010022A1 (en) | 2002-07-16 |
ITTO20010022A0 (en) | 2001-01-16 |
ES2228787T3 (en) | 2005-04-16 |
DE60106191T2 (en) | 2005-11-24 |
TR200402693T4 (en) | 2004-11-22 |
EP1223646A3 (en) | 2003-11-12 |
DE60106191D1 (en) | 2004-11-11 |
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