Temporary clamping device and kit for drilling jigs

Abstract

Temporary clamping device (1 ) for drilling jigs for one or more panels comprising a tubular outer body (2) defining a first through seat (9), a conical element (3) defining a second through seat (12) and a tie rod (4) having a threaded portion (7). The conical element (3) and the tie rod (4) are respectively insertable in the first and in the second through seat (12). The tie rod (4) guarantees an advancement of the conical element (3) inside the first through seat (9). The advancement of the conical element (3) causes the passage of the outer body (2) between a rest configuration, and an expanded configuration, in which the conical element (3) is completely inserted in the second through seat (12) causing its expansion.

Description

[0001] TEMPORARY CLAMPING DEVICE AND KIT FOR DRILLING JIGS

[0002] The present invention relates to a temporary clamping device and kit for drilling jigs for one or more panels.

[0003] In detail, the object of the invention consists of a device and a kit that finds application in the aeronautical, aerospace sector and in all those sectors in which guide systems are used for drilling machines that need to apply a jig on a panel or an element to be drilled.

[0004] Such an invention advantageously finds use for the installation of panels and support structures of aeronautical and aerospace vehicles.

[0005] To date, the clamping between the panel and the drilling jig is carried out by means of an expansion element, or fasteners, inserted in a pre-drill hole on the panel, which through a screw system generates a compression of the jig-panel package.

[0006] Disadvantageously, the expansion elements present in the prior art show several criticalities.

[0007] A first critical criticality consists in that these fasteners are very delicate and therefore can be easily damaged if the screwdriver used to install them is not properly calibrated.

[0008] A second criticality lies in the fact that the expansion elements are made in a non-dismountable monobloc and, therefore, when one of the components breaks, it is necessary to replace the entire assembly.

[0009] A third criticality consists in that normally the areas where the fasteners are used are made of more panels, or metal sheets, coupled with the interposition of mastics which, inevitably, end up penetrating inside the fasteners making it unusable.

[0010] Finally, a fourth criticality lies in the fact that the action of the expansion element consists in pulling the panel against the drilling jig which, however, does not rest completely on the panel but only in some points.

[0011] It follows that, where there are no supports, the action of the drilling jig of pulling into the void tends to deform the panel, especially if the tightening torques applied are not perfectly calculated or the fasteners used to screw them are not correctly calibrated.

[0012] The technical task of the present invention is therefore to provide a temporary clamping device and kit for drilling jigs for one or more panels that are able to overcome the drawbacks arising from the prior art.

[0013] Aim of the present invention is therefore specifically to make available a temporary clamping device and kit for drilling jigs for one or more panels that are completely dismountable and replaceable in each of their components.

[0014] A further aim of the present solution is therefore to make available a temporary clamping device and kit for drilling jigs for one or more panels that are able to limit the possibility of mastics and adhesives damaging and / or rendering the components of the device unusable.

[0015] A further aim of the present solution is therefore to make available a temporary clamping device and kit for drilling jigs for one or more panels that are able to guarantee the tightness of the drilling jig on a panel, reducing the possibility that the panel may deform or be damaged.

[0016] A further aim of the present solution is therefore to make available a temporary clamping device and kit for drilling jigs for one or more panels that are able to guarantee the tightness of the area of the panel near the drilling, limiting vibrations and consequently improving drilling operations.

[0017] Finally, a further aim of the present solution is therefore to make available a temporary clamping device and kit for drilling jigs for one or more panels that are able to provide, and therefore combine, different components, so as to cover as many cases as possible of drilling operation.

[0018] The technical task mentioned and the objects stated are substantially achieved by a temporary clamping device and kit for drilling jigs for one or more panels comprising the technical features set out in one or more of the appended claims.

[0019] According to one aspect of the present invention, a temporary clamping device for drilling jigs for one or more panels is made available. The device comprises a tubular outer body in which a first seat is obtained. The first seat extends between a first and a second drilled face of the outer body.

[0020] The device comprises a conical element, reversibly insertable in the first seat of the outer body.

[0021] The conical element comprises a second seat extending between a first and a second drilled end.

[0022] The first drilled end lies on the first drilled face when the conical element is completely inserted into the outer body.

[0023] The device comprises a tie rod insertable inside the second seat having a threaded portion.

[0024] When the tie rod is inserted in the second through seat, the threaded portion comes out of the latter away from the conical element and allows to obtain, by means of a screwing movement of the tie rod, an advancement of the conical element inside the first seat.

[0025] The advancement of the conical element can take place between the second drilled face and the first drilled face of the outer body, or vice versa.

[0026] The advancement of the conical element causes the passage of the outer body between a first rest configuration and a second expanded configuration.

[0027] In the first rest configuration, the threaded portion of the tie rod is only partially inserted into the second seat.

[0028] In the second expanded configuration the tie rod is completely inserted into the second seat.

[0029] Further characteristics and advantages of the present invention will become clearer from the indicative and, therefore, non-limiting description of a temporary clamping device and kit for drilling jigs.

[0030] Such a description will be set out below with reference to the accompanying drawings, which are provided for illustrative and therefore non-limiting purposes, in which: - Figure 1 shows a perspective and front view of a temporary clamping device for drilling jigs;

[0031] - Figure 2 is an exploded view of the device of Figure 1 ;

[0032] - Figure 3 shows a possible embodiment of a component of the device;

[0033] - Figures 4A and 4B illustrate a front view and a section of the component of Figure 3 to which a marker is further applied;

[0034] - Figure 5 illustrates a further component of the device;

[0035] - Figure 6 illustrates some main elements of the claimed kit.

[0036] With reference to the attached figures, a temporary clamping device for drilling jigs for one or more panels has been indicated overall with 1 which, for simplicity of description, will be referred to below as device 1 .

[0037] The device 1 has the task of maintaining a reversible coupling between one or more superimposed panels and a drilling jig that performs the function of guide for the execution of ordered holes on such panels.

[0038] The starting condition provides for the presence of coordinated holes, smaller than the desired final diameter, on one or more panels.

[0039] The holes present on the panels are used as a guide and reference, in order to facilitate the insertion of the device 1 , whose aim is to hold the drilling jig firmly in place on the panel.

[0040] The device 1 comprises a tubular outer body 2, a conical element 3 and a tie rod 4.

[0041] Preferably, one or more components of the device 1 are made of steel and subsequently heat-treated.

[0042] Advantageously, thanks to this type of processing, the device 1 has better structural and physical characteristics at the end of the treatment.

[0043] The steel and the subsequent heat treatment increase wear resistance and surface hardness, while improving the toughness of the device 1 .

[0044] In other words, once the mechanical machinings have been carried out, by chip removal, the components of the device 1 are subjected to a tempering heat treatment with consequent final grinding to make all the components perfectly within tolerance with respect to the couplings provided for by the present invention.

[0045] Advantageously, the device 1 is completely dismountable in all its components, and therefore it will be possible to replace the individual components when they wear out or break.

[0046] This possibility is advantageous in economic terms also with regard to the possibility of repairing the device 1 by replacing only the damaged or most worn components.

[0047] Structurally, the outer body 2 defines a first through seat 9 developing between a first 10 and a second drilled face 11 .

[0048] In other words, the outer body 2 has a substantially tubular conformation that defines in its inside a passage channel extending between the first drilled face 10 and the second drilled face 11 .

[0049] According to a possible embodiment, the first through seat 9 of the outer body 2 has a conical, substantially conical or cylindrical shape.

[0050] The outer body 2 also has a plurality of longitudinal notches 5 adapted to allow an expansion of the tubular outer body 2.

[0051] Preferably, such longitudinal notches 5 develop alternately between the first drilled face 10 towards the second drilled face 11 and from the second drilled face 11 towards the first drilled face 10 such that a lateral surface of the outer body 2 has a substantially serpentine conformation.

[0052] In other words, cuts are obtained on the lateral surface of the outer body 2 so as to allow the expansion of the first through seat 9 according to the nominal size of through seats present on the drilling jig.

[0053] Alternately, the outer body 2 may comprise a collar 11 a developing around the second drilled face 11 and the longitudinal notches all develop from the first drilled face 10 until reaching the collar 11 a (without however extending over the latter).

[0054] In other words, in this second embodiment, the longitudinal notches 5 start and end at the same height as the outer body 2, as can be observed in Figure 3. In general, that is regardless of the specific conformation / arrangement of the cuts made on the outer body 2, the application of an appropriate force on the inner walls of the outer body 2 (according to the methods that will be detailed below) causes the mutual distancing of the various portions enclosed between two successive notches causing overall the enlargement of the outer body 2.

[0055] The outer body 2, according to a possible embodiment, can have a cylindrical shape, as shown in Figures 1 and 2.

[0056] Traditionally, the outer body 2 is the component of the device 1 most subject to mechanical stress and therefore at risk of breaking, since it must guarantee the insertion, expansion and clamping of the device 1 in the drilling jig.

[0057] Advantageously, the outer body 2 of the device 1 of the present invention, according to a possible embodiment, is instead formed starting from a single piece with a high thickness and it is therefore more resistant and it better withstands the mechanical strains and stresses deriving from its expansion and subsequent contraction.

[0058] Preferably, the outer body also comprises a marker M, such as for example a tag for radio frequency identification (otherwise known as RFID tag), which allows to uniquely identify the device 1 and can further comprise or be connected to further information suitable for identifying the device 1 .

[0059] For example, a specific marker M can be used to inform about the length, width, mechanical strength and / or other structural characteristics of a specific device 1 .

[0060] The marker M can be reversibly coupled to the outer body 2 in such a way as to allow it to be replaced or repaired, if necessary.

[0061] In accordance with a possible embodiment, the outer body 2 has a circumferential seat 11 b that can preferably be positioned at one end of the outer body 2 (for example if present at the collar 11 a).

[0062] In this context, the marker M can have a ring or foldable band conformation in such a way as to be housed / housable within the circumferential seat 11 b in such a way as not to increase or in any case modify the overall footprint of the device 1 .

[0063] The circumferential seat 11 b has the further advantage of reducing the section of material in that area so as to increase the deformation capacity of the component as a result of the thrust caused by the conical element 3 in the manner that will be detailed below.

[0064] In accordance with an aspect of the present invention, an outer surface of the outer body 3 can be knurled or in general have relief notches or machinings that allow to increase the adhesion of this element on the jigs to which it will be applied.

[0065] In the embodiment that is exemplary illustrated in the attached figures (Figure 3 in particular), these relief elements have a double helix geometry.

[0066] The conical element 3 is insertable inside the first through seat 9 of the outer body 2.

[0067] Specifically, the conical element 3 is reversibly insertable in the first through seat 9 of the outer body 2.

[0068] The conical element 3 comprises a second through seat 12 developing between a first 13 and a second drilled end 14.

[0069] In other words, the conical element 3 also has a substantially tubular conformation that defines in its inside a passage channel extending between the first drilled end 13 and the second drilled end 14.

[0070] Preferably, the conical element 3 has a truncated cone shape, with the diameter of the first drilled end 13 smaller than the diameter of the second drilled end 14 and with said second diameter greater than a diameter of the first through seat 9 when the outer body is in a rest condition.

[0071] In this way, the insertion of the conical element 3 inside the first through seat 9 causes a progressive enlargement of the outer body 2, due to the thrust exerted by the increasing section of the conical element 3 on the inner walls of said outer body 2. Preferably, the second through seat 12 of the conical element 3 has a cylindrical or substantially cylindrical shape.

[0072] When the conical element 3 is completely inserted into the outer body 2, the first drilled end 13 of the conical element 3 lies on the first drilled face 10 of the outer body 2.

[0073] In other words, the first drilled end 13, in use, is placed flush or in abutment on the first drilled face 10 when the conical element 3 is completely inserted into the outer body 2.

[0074] The conical element 3 is therefore preferably configured to fit into the outer body 2 until it adheres perfectly to the walls of the latter and have the first drilled end 13 match with the first drilled face 10 of the outer body 2.

[0075] In this context, it therefore appears that the first through seat 9 is at least partially counter-shaped to the conical element 3.

[0076] Preferably, however, at least a portion of the outer surface of the conical element is neither in abutment against the inner wall of the outer body 2 nor even in a condition of complete insertion of the conical element 3.

[0077] In other words, the outer surface of the conical element 3 has at least a first portion A and at least a second portion B having different inclinations with respect to a longitudinal axis (i.e. a main development axis aligned with the inner channel that extends from the first drilled end 12 to the second drilled end 13) of said conical element 3.

[0078] Therefore, the conical element 3 has at least one section with reduced width that allows to reduce the contact surface between it and the outer body 2.

[0079] In this way, while maintaining its functionality intact, it is much easier for the operator to release the two elements when it is necessary to remove the device 1 .

[0080] In particular, the first and second portion A, B may have a difference in inclination of between 0.2 and 1 degree.

[0081] Preferably, the conical element 3 comprises one or more transverse guides 6 developing at the second drilled end 14 of the conical element 3. These guides have a longitudinal inlet / opening at the second drilled end 14 and continue transversely past an elbow point.

[0082] These transverse guides 6 can be passing-through (i.e. develop as a notch made on the lateral wall of the conical element 3) or be made in the form of recesses on the outer wall of the conical element 3.

[0083] Preferably, the conical element 3 has a tooth 3a positioned on its outer surface and the inner surface of the outer body 2 has a suitable sliding seat 2a within which the tooth 3a can axially slide.

[0084] The sliding seat 2a then operationally defines a guide for the tooth, thus determining the insertion / extraction limit travel of the conical element 3 with respect to the outer body 2.

[0085] Preferably, the tooth 3a extends linearly over the entire circumference of the conical element 3 and correspondingly, the axial sliding seat 2a has a circular conformation within which the tooth can be inserted and slide axially.

[0086] The tie rod 4 is inserted into the second through seat 12 of the conical element 3.

[0087] The tie rod 4 has a threaded portion 7 extending away from the first drilled face 10 when the tie rod 4 is inserted in the second through seat 12 and the conical element 3 is inserted in the first through seat 9.

[0088] Preferably, the threaded portion 7 is made of metallic material by turning.

[0089] In other words, the tie rod 4 is a metallic element made by turning that has a threaded portion 7 with the nominal diameter as the coordinated holes present on the panel and necessary for using the device 1 so that the drilling jig is perfectly in position on the panel to be drilled.

[0090] In use, the tie rod 4 guarantees an advancement of the conical element 3 inside the first through seat 9 between the second drilled face 11 and the first drilled face 10 of the outer body 2.

[0091] Operationally, the screwing of the tie rod 4 when it is inserted in the second through seat 12, causes an advancement of the tie rod itself towards the coordinated hole which in turn causes the advancement of the conical element 3 inside the first through seat 9 towards the first drilled face 10, causing an expansion of the outer body 2 along the longitudinal notches 5.

[0092] The advancement of the conical element 3 then causes the passage of the outer body 2 between a first rest configuration of the device 1 and a second expanded configuration of the device 1 .

[0093] In the first rest configuration, the threaded portion 7 of the tie rod 4 is only partially inserted in the second through seat 12.

[0094] In the second expanded configuration, the tie rod 4 is completely inserted in the second through seat 12 and its subsequent screwing into a corresponding coordinated hole causes the dragging of the conical element 3 along the first through seat 9.

[0095] According to a possible embodiment, the conical element 3 and the tie rod 4 are constrained by means of a joint and coupled by means of a square elastic ring.

[0096] The elastic ring guarantees the screwing movement of the tie rod 4 in the second through seat 12 of the conical element 3.

[0097] In other words, the only components of the device 1 that are constrained by means of a joint are the conical element 3 and the tie rod 4 that are coupled by means of a square section elastic ring, which allows the rotation of the tie rod 4 in the conical element 3 but not the decoupling in the axial direction.

[0098] Advantageously, the longitudinal notches 5, present on the outer body 2, facilitate the expansion of the first through seat 9 and the passage of the outer body 2 into the second configuration of the device 1 , causing the insertion of the conical element 3 in the outer body 2.

[0099] According to a possible embodiment, the device 1 comprises a washer 8 superimposed or superimposable on the first drilled face 10 of the outer body 2 and having a central hole 15 adapted to guarantee the insertion of the threaded portion 7 of the tie rod 4.

[0100] Preferably, the washer 8 is made of deformable polymeric material. In other words, the washer 8 can be made of soft plastic.

[0101] The washer 8 has a diameter slightly smaller than that of the outer body 2 and a central hole 15 with nominal diameter slightly smaller than that of the threaded portion 7 of the tie rod 4.

[0102] Advantageously, the washer 8 prevents the panel from being damaged as a result of the contact with the outer body 2 and its pressure on the panel itself under the action of the tie rod 4.

[0103] In addition, the washer 8 prevents possible glues or mastics, present between two superimposed panels to be drilled, from penetrating inside the outer body 2.

[0104] In other words, the possibility of the device 1 of being dismounted and the presence of the washer 8 optimise any cleaning processes of the device 1 and strongly limits the possibility of mastics and adhesives damaging and / or rendering the device 1 itself unusable.

[0105] The present invention also makes available a temporary clamping kit for drilling jigs for one or more panels.

[0106] The kit comprises a counter-jig having at least one threaded seat alignable with a respective through seat.

[0107] Preferably, the counter-jig comprises a plurality of threaded seats associable with respective through seats of a drilling jig.

[0108] According to a possible embodiment, at least one threaded seat has the same spacing as the through seats of the drilling jig.

[0109] In other words, on the counter-jig, normally made of aluminium alloy, holes are obtained with the same spacing as the through seats present on the drilling jig.

[0110] According to a possible embodiment, at least one threaded seat has a substantially truncated cone structure, in which a larger base can be facing the drilling jig to receive the tie rod 4 by screwing.

[0111] Preferably, the threaded seat of the counter-jig may comprise a first and a second diameter having different dimensional characteristics from each other. The first diameter, in abutment with one or more of the panels, has a larger size.

[0112] Operationally, the first diameter of the threaded seat of the counter-jig that comes into contact with the inner face of the panel to be drilled has the aim of preventing the drilling from being able to exert such pressure on the part that could deform it.

[0113] Advantageously, the first diameter of the threaded seat, slightly larger than the hole to be made later with a cutting tool, guarantees that there is no removal of material by the counter-jig.

[0114] The second diameter, adjacent to the first diameter, and distal with respect to one or more of the panels, comprises a threading compatible with the threaded portion 7 of the tie rod 4 of the device 1 .

[0115] In other words, past the point reached by the cutting tool, the second diameter of the threaded seat is reduced and becomes threaded.

[0116] Advantageously, the second diameter of the threaded seat of the counterjig is compatible with the coordinated holes present on the panel and has a pitch compatible with the threaded portion 7 of the tie rod 4.

[0117] The kit comprises one or more devices 1 according to one or more of the above technical features insertable in a respective through seat in such a way as to engage by means of the threaded portion 7 a corresponding threaded seat.

[0118] Furthermore, the kit may comprise a drilling jig comprising a plurality of through seats, preferably cylindrical in shape, distributed in an operational portion of the drilling jig.

[0119] The device 1 is inserted or insertable in one or more of the through seats of the jig.

[0120] The device 1 is used, in order to guarantee the temporary clamping of the drilling jig on a panel, mounted in all its parts.

[0121] According to a possible embodiment, the device 1 once installed may be slightly more recessed in the through seat of the jig, this is due to the presence of the washer 8 made of plastic material. In other words, when the device 1 is inserted in the through seat it remains completely in the profile of the latter, without coming out.

[0122] This detail is very important because, especially in areas where the distance between the through seats is reduced, there may be interference between the devices 1 and the machinery subsequently used for drilling the panels.

[0123] Furthermore, advantageously, the washer 8 guarantees the necessary deformation of the assembly thanks to which both the mechanical tightness of the device 1 in the through seat and the necessary assembly tightness of the device 1 with the panel take place.

[0124] In other words, unlike the standard systems that pull the drilling jig into the void with respect to the panel, in the case of the present invention, the kit, and in particular the device 1 , comes into direct contact with the panel creating a rigid and solid assembly group.

[0125] Advantageously, the device 1 inside the kit not only guarantees the tightness of the drilling jig on the panel but also drastically reduces the possibility that the material with which the panel is made may deform or be damaged.

[0126] Furthermore, advantageously, the device 1 improves the drilling operation by keeping the area of the panel near which the machining takes place firmly, preventing the latter from vibrating.

[0127] Preferably, the kit may further comprise a screwdriver 20 operable to promote a screwing of the tie rod 4 into the respective threaded seat.

[0128] In particular, the screwdriver 20 may comprise a screwing head on which a bit is mounted, preferably in a reversible manner, which is counter-shaped to a head of the tie rod and configured to engage it stably allowing it to be screwed during activation of the screwdriver 20.

[0129] Preferably, the screwdriver 20 further comprises at least one pin, developing transversely to the bit, adapted to engage a corresponding transverse guide 6 of the conical element 3 of the device 1 .

[0130] In this way, during a removal step of the device 1 , the pins can engage the transverse guides of the conical element 3 in a stable manner and a simple pulling of the screwdriver 20 away from the jig allows the conical element 3 to be extracted in a particularly simple manner from the first through seat 9, thus returning the outer element 2 into its rest configuration in which it can be easily extracted from the seat of the jig.

[0131] In detail, in accordance with an aspect of the invention, the conical element 3 comprises one or more transverse guides 6 developing at the second drilled end 14 and the screwdriver 20 comprises one or more pins configured to define with said guides 6 a coupling, preferably a coupling of the bayonet type.

[0132] In general, the screwdriver 20 with a duly shaped interface allows the device 1 to be inserted into the through seat of the drilling jig and push the latter into abutment on the panel.

[0133] The counter-jig is configured to go into contact with at least one panel and enter into interaction with the device 1 when the latter is inserted into the drilled jig.

[0134] The device 1 is configured to clamp the jig and the counter-jig at opposite surfaces of one or more panels.

[0135] The insertion of the device 1 in the drilling jig provides that an operator simply brings the device 1 closer to the pin of the screwdriver 20, which can remain integral, for example thanks to a magnetic retention system. Subsequently, the operator, through the screwdriver 20, positions and inserts the device 1 inside the through seat so that the threaded portion 7 of the tie rod 4 enters in the coordinated hole of the panel and reaches the counter-jig positioned on the other side of the panel.

[0136] Operationally, the operator who inserted the counter-jig operates the screwdriver 20 which, by rotating the tie rod 4, screws the device 1 into the counter-jig.

[0137] The counter-jig, by remaining fixed, actually advances the conical element 3 of the device 1 which consequently dilates the outer body 2 while making it adhere to the through seat of the drilling jig and thereby tightening the entire system, i.e. the counter-jig, the panel, the device 1 and the drilling jig.

[0138] Advantageously, the adhesion between the various elements of the system is further optimized by the elastic effect of the washer 8 in polymeric material.

[0139] Preferably, once the screwdriver 20 reaches a predetermined tightening torque value it will automatically stop the motion, emitting a sound.

[0140] The operator, at this point, will simply have to move the screwdriver 20 away from the device 1 .

[0141] Finally, once the drilling of the panel has been completed, in order to remove the device 1 , the operator will bring the screwdriver 20 again closer to the tie rod 4; then, he will reverse the rotation until it is completely extracted.

[0142] According to a possible embodiment, by applying a clockwise rotation to the screwdriver 20, the at least one pin of the screwdriver 20 is guided in one or more guides 6 developing along the second drilled end 14 of the conical element 3, facilitating the gripping and the exit of the device 1 from the drilling jig.

[0143] If the device 1 comprises a marker M, the screwdriver 20 may comprise a sensor configured to detect said marker M and preferably read the information contained therein.

[0144] In particular, the kit may comprise a database adapted to store a plurality of activation profiles of the screwdriver 20 and wherein the screwdriver 20 comprises a control unit connected to the sensor and connectable to the database.

[0145] In this context, the control unit is configured to select an activation profile as a function of the marker M.

[0146] In other words, the sensor “reads” the marker M and communicates the acquired information to the control unit, which in turn queries the database to identify the most suitable activation profile of the screwdriver 20 for operating with the specific device 1 associated with the detected marker M.

[0147] Advantageously, the present invention therefore makes available a temporary clamping device 1 and kit for drilling jigs for one or more panels capable of overcoming the drawbacks arising from the prior art.

[0148] Advantageously, the present invention makes available a device 1 and a kit that are completely dismountable and replaceable in each of their components.

[0149] Advantageously, the present invention is able to limit the possibility of mastics and adhesives damaging and / or rendering the components of the device 1 or of the kit unusable.

[0150] Advantageously, the present invention is able to guarantee the tightness of the drilling jig on a panel, reducing the possibility that the panel may deform or be damaged.

[0151] Advantageously, the present invention is able to guarantee the tightness of the area of the panel near the drilling, limiting vibrations and consequently improving drilling operations.

[0152] Advantageously, the present invention is able to provide, and therefore combine, different components, so as to cover as many cases as possible of drilling operation.

Claims

CLAIMS1 ) Temporary clamping device (1 ) for drilling jigs for one or more panels comprising:- a tubular outer body (2) defining a first through seat (9) developing between a first drilled face (10) and a second drilled face (11 ) and having a plurality of longitudinal notches (5) adapted to allow an expansion of said outer body (2);- a conical element (3), insertable in said first through seat (9) of said outer body (2), and comprising a second through seat (12) developing between a first drilled end (13) and a second drilled end (14);- a tie rod (4) insertable in said second through seat (12) and having a threaded portion (7) extending away from the first drilled face (10) when the tie rod (4) is inserted in the second through seat (12) and the conical element (3) is inserted in the first through seat (9); characterized in that a screwing of said tie rod (4) when inserted into the second through seat (12) causes an advancement of the conical element (3) inside said first through seat (9) towards the first drilled face (10), causing an expansion of the outer body (2) along said longitudinal notches (5).2) Device (1 ) according to claim 1 , wherein said threaded portion (7) is made of metallic material by turning.3) Device (1 ) according to claim 1 or 2, wherein said conical element (3) comprises one or more transverse guides (6) developing at said second drilled end (14).4) Device (1 ) according to any one of the preceding claims, comprising a washer (8) superimposed or superimposable on said first drilled face (10) of said outer body (2) and having a central hole (15) adapted to guaranteethe insertion of said threaded portion (7) of said tie rod (4).5) Device (1 ) according to claim 4, wherein said washer (8) is made of deformable polymeric material.6) Device (1 ) according to any one of the preceding claims, wherein said conical element (3) and said tie rod (4) are constrained by means of a joint and coupled by means of a square elastic ring.7) Device (1 ) according to any one of the preceding claims, wherein the outer body (2) comprises longitudinal notches (5) that develop alternately from the first drilled face (10) towards the second drilled face (1 1 ) and from the second drilled face (1 1 ) towards the first drilled face (10) such that a lateral surface of the outer body (2) has a substantially serpentine conformation.8) Device (1 ) according to any one of the preceding claims 1 to 6, wherein the outer body (2) has a collar (11 a) developing around the second drilled face (1 1 ) and comprises longitudinal notches (5) that develop from the first drilled face (10) up to the collar (11 a).9) Device (1 ) according to any one of the preceding claims, wherein the outer body (2) comprises a marker (M) adapted to uniquely identify the device (1 ).10) Device according to claim 9, wherein the outer body (2) has a circumferential seat (1 1 b) at the collar (1 1 a), said marker (M) having a ring conformation and being housed in said circumferential seat (1 1 b).11 ) Device (1 ) according to claim 10, wherein the marker (M) comprises a tag for radio frequency identification, RFID.12) Device (1 ) according to any one of the preceding claims, wherein an outer surface of the outer body (2) is knurled.13) Device (1 ) according to any one of the preceding claims, wherein an outer surface of the conical element (3) has a tooth (3a) and an inner surface of the outer body (2) has an axial sliding seat (2a) for said tooth (3a).14) Device (1 ) according to claim 13, wherein the tooth and the axial sliding seat (2a) develop circumferentially respectively on the outer surface of the conical element (3) and on the inner surface of the outer body (2).15) Device (1 ) according to any one of the preceding claims, wherein the first through seat (9) is partially counter-shaped to the conical element (3).16) Device (1 ) according to any one of the preceding claims, wherein the outer surface of the conical element (3) has at least a first portion (A) and at least a second portion (B), said first and second portions (A, B) having respective different inclinations with respect to a longitudinal axis of said conical element (3)17) Temporary clamping kit for drilling jigs for one or more panels comprising:- a drilling jig comprising a plurality of through seats distributed in an operational portion of said drilling jig;- a counter-jig having at least one threaded seat alignable with a respective through seat;- at least one device (1 ), according to any one of the preceding claims, insertable in a respective through seat in such a way as to engage by means of the threaded portion (7). a corresponding threaded seat.18) Kit according to claim 17, comprising a screwdriver (50) operable to promote a screwing of the tie rod into the respective threaded seat.19) Kit according to claim 18, wherein the outer body (2) comprises a marker (M) adapted to uniquely identify the device (1 ) and the screwdriver (50) comprises a sensor configured to detect said marker (M).20) Kit according to claim 19, comprising a database adapted to store a plurality of activation profiles of the screwdriver (20) and wherein the screwdriver (20) comprises a control unit connected to the sensor and connectable to said database; said control unit being configured to select an activation profile as a function of the marker (M), detected.21) Kit according to any one of claims 17 to 20, wherein the conical element (3) comprises one or more transverse guides (6) developing at said second drilled end (14) and the screwdriver comprises one or more pins configured to define with said guides (6) a bayonet coupling.22) Kit according to any one of claims 17 to 21 , wherein said counter-jig comprises a plurality of threaded seats associable with respective through seats of the jig.23) Kit according to any one of claims 17 to 22, wherein said at least one threaded seat has a substantially truncated cone structure, wherein a larger base can be facing the jig to receive the tie rod (4) by screwing.

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