EP3205454B1 - Outil de montage, son utilisation et procédé de fixation d'une douille filetée - Google Patents

Outil de montage, son utilisation et procédé de fixation d'une douille filetée Download PDF

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Publication number
EP3205454B1
EP3205454B1 EP17151262.7A EP17151262A EP3205454B1 EP 3205454 B1 EP3205454 B1 EP 3205454B1 EP 17151262 A EP17151262 A EP 17151262A EP 3205454 B1 EP3205454 B1 EP 3205454B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
spindle
threaded insert
assembly tool
pressure piece
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.)
Active
Application number
EP17151262.7A
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German (de)
English (en)
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EP3205454A1 (fr
Inventor
Philipp Scholz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fairchild Fasteners Europe Camloc GmbH
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Fairchild Fasteners Europe Camloc GmbH
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Publication of EP3205454A1 publication Critical patent/EP3205454A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/143—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same for installing wire thread inserts or tubular threaded inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races

Definitions

  • the invention relates to an assembly tool for threaded inserts, the use of such an assembly tool with a threaded insert adapted to it, and a method for fastening a threaded insert in a workpiece.
  • Threaded inserts which can be designed as a threaded bushing or as a thread armouring, are used in workpieces with lower mechanical strength, e.g. in components made of aluminum or gray cast iron, in order to be able to apply comparatively higher loads via the thread. Such thread inserts are also suitable as repair solutions for damaged threads.
  • threaded inserts are components that have an external thread with which they are screwed into a possibly damaged thread of a component.
  • the threaded inserts then additionally have an internal thread or a pin with an external thread for connection to another component.
  • wedges or pins are driven into the thread insert and / or the workpiece receiving the thread insert. In particular, this prevents the threaded insert from twisting in this workpiece.
  • the tool is turned around or displaced so that the wedges or pins can be driven into the tool by striking the tool until the tool hits the workpiece surface.
  • a cylindrical pin can be inserted into the internal thread of the threaded insert.
  • an assembly tool for threaded inserts which has a bolt which is at least partially provided with a thread, and an impact sleeve, the bolt being guided in the impact sleeve in a rotationally fixed and axially displaceable manner.
  • the bolt (threaded pin) is received in the impact sleeve in such a way that the bolt can dip into the impact sleeve or protrude from the impact sleeve without, however, allowing any significant rotation of the bolt relative to the impact sleeve.
  • This assembly tool is superior to conventional tools in terms of safety and ergonomics. However, due to the sequential steps of screwing in the threaded insert and driving in the pins or wedges, this tool is more suitable for manual assembly and for small series.
  • a threaded insert assembly tool comprising a spindle, a sleeve threadedly engaged with the spindle, and locking means for releasably inhibiting rotation of the spindle relative to the sleeve.
  • An external thread of the spindle protrudes from the sleeve
  • the object of the invention is to provide an assembly tool for inserting a threaded insert into a workpiece, which is also suitable for assembly in large series.
  • An assembly tool has a spindle which is provided at least in sections with a first external thread and at least in sections with a second thread, a sleeve which has a thread engaging with the second thread, and locking means for releasably inhibiting rotation of the spindle relative to it the sleeve on.
  • the length of the spindle and the length of the sleeve are preferably adapted to one another in such a way that the first external thread at least partially protrudes from the sleeve.
  • the invention is based on the idea of bringing about the screwing of the threaded insert into a workpiece and the subsequent driving in of the pins or wedges of the threaded insert by rotating the assembly tool.
  • the spindle and the sleeve can be rotated together in a first step in the assembly of the threaded insert.
  • locking means are provided which make relative rotation between the spindle and the sleeve at least so difficult that with the comparatively low torque required to screw the threaded insert into the workpiece, there is no relative movement between the sleeve and spindle occurs. If, on the other hand, a higher torque required for driving in the pins or wedges is applied, a relative movement between the sleeve and the spindle is permitted, whereby the relative axial movement component caused by the thread engagement between the sleeve and the spindle is used to drive in the pins or wedges .
  • the locking means required to switch between the two operating modes of the assembly tool namely on the one hand the common rotary movement of the sleeve and spindle for screwing in the insert and on the other hand the relative rotary movement of the sleeve and spindle for driving in the pins or wedges, can either be designed in such a way that the relative rotary movement between sleeve and spindle, e.g. in the manner of a ratchet or ratchet or by means of a lock, is completely blocked, or alternatively is inhibited to the extent that at least with the comparatively low torque required to screw the threaded insert into the workpiece, a relative rotation between the sleeve and the spindle is inhibited or prevented.
  • a slip clutch can also be used between the sleeve and the spindle.
  • this is achieved through increased friction between the spindle and the sleeve, i.e. without additional components.
  • the fit between the sleeve and the spindle can be selected accordingly and / or the coefficients of friction of the sleeve and / or the spindle can be selected accordingly.
  • the locking means can thus also be formed by the areas of the spindle and the sleeve itself which are in contact with one another.
  • the spindle has a thread on two sections, namely on the one hand the first external thread for connection to the threaded insert and on the other hand a further thread which is in engagement with the sleeve.
  • the second thread is preferably also an external thread which engages in an internal thread of the sleeve.
  • the two threads can be considered from each other separate threaded sections may be formed.
  • a continuous thread can be provided on the spindle, which forms both thread sections.
  • Overlapping thread sections can also be provided on the spindle. Both threaded sections preferably have the same direction of rotation.
  • the thread sections can have the same or different pitches.
  • the locking means have a stop on the spindle and a counter-stop on the sleeve, which releasably block rotation of the spindle relative to the sleeve when the stop rests against the counter-stop.
  • This can be achieved, for example, in that the sleeve, which is in thread engagement with the spindle, jams with one another when the stop of the spindle contacts the counter-stop of the sleeve, whereby this clamping occurs when a larger torque is applied, as is the case for driving in the wedges or the sleeve. Pins is required, releases automatically.
  • the sleeve which rotates both during the screwing of the threaded insert into the workpiece and during the driving of the pins or wedges, does not bear directly against the non-co-rotating pins or wedges in order to prevent damage from this relative rotation avoid.
  • the side of the sleeve facing the insert can be provided as a slide bearing with a friction-reducing coating or can be designed with a correspondingly low-friction material pairing.
  • a pressure piece which is arranged radially outside the spindle and has an end wall on the side facing away from the sleeve is preferably mounted on or in the sleeve.
  • the pins or wedges can be driven in when the sleeve moves together with the pressure piece relative to the spindle.
  • the length of the pressure piece, the length of the spindle and the length of the sleeve are important preferably adapted to one another in such a way that the first external thread of the spindle protrudes at least partially from the sleeve and from the pressure piece.
  • the pressure piece is freely rotatable relative to the sleeve and is not axially displaceable relative to the sleeve on or in the sleeve. This can be done, for example, using a needle or ball bearing and possibly a locking ring.
  • the spindle is rotatably fixed with at least one of these Coupled in sections surrounding the spacer ring, wherein the spacer ring for driving in the pins or wedges is axially movable together with the spindle relative to the sleeve.
  • the spacer ring is moved towards the workpiece together with the other components of the assembly tool and together with the threaded insert while the threaded insert is being screwed into the workpiece.
  • the spacer ring is preferably also axially movable relative to the pressure piece.
  • the spacer ring can be secured in the spindle by means of a pin, elongated holes in which the pin is guided are provided in the pressure piece.
  • the use of the spacer ring allows the screw-in depth of the threaded insert in the workpiece to be determined very precisely, since the screwing-in of the threaded insert is canceled when the spacer ring hits the workpiece surface (end of the first operating mode) and the threaded insert is subsequently driven in by driving the wedges or pins into its position is fixed relative to the workpiece. This makes it possible to mount a large number of threaded inserts with high precision at a defined screw-in depth in the workpiece.
  • the spacer ring can be designed to be exchangeable, with different screw-in depths being able to be represented with different dimensions of the spacer ring.
  • the spacer ring can be designed in several parts and, for example, have an external thread which engages with the internal thread of an adjusting ring that at least partially surrounds the spindle.
  • the setting ring can, if necessary, be fixed in its position with a lock nut, which is also in engagement with the external thread of the spacer ring.
  • the position of the setting ring relative to the spacer ring and thus to the spindle defines the screw-in depth of the threaded insert or the switching between the operating modes of the assembly tool.
  • the setting ring For a smaller screw-in depth of the threaded insert, the setting ring must be advanced further relative to the spindle in the screwing direction of the threaded insert, so that the screwing-in process is terminated earlier, whereas the setting ring must be withdrawn relative to the spindle if a greater screw-in depth is to be achieved.
  • the sleeve can have a first cylindrical section in which the as Internal thread formed thread is provided, and a second cylindrical section which is spaced from the first section by a radially inwardly protruding web or flange, and in which a flange section of the pressure piece is rotatably mounted and secured against axial movement, for example by means of a locking ring.
  • the spindle can have a shaft, at one end of which the first external thread is provided and at the opposite second end the second thread designed as an external thread is provided, wherein the second end can have an enlarged diameter compared to the shaft.
  • the pressure piece can, for example, encompass the shaft of the spindle and have two elongated holes in which the spacer ring is guided in a rotationally fixed and axially movable manner by means of a pin.
  • the sleeve and optionally also the spindle are preferably equipped with engagement means for a torque-transmitting tool. It is further preferred if the end wall is provided with a bevel on the side of the pressure piece facing away from the sleeve, so that the pressure piece can be adapted to the geometry of the opening in the workpiece. Alternatively or additionally, a shoulder can also be provided on the end wall of the pressure piece.
  • the threaded insert is preferably designed as a sleeve with an external thread and an internal thread, with at least one longitudinal groove in which a wedge or pin is received in the outer surface of the threaded insert.
  • the internal thread of the threaded insert is adapted to the first external thread of the spindle of the assembly tool so that they can be screwed into one another.
  • the radial position of the at least one pin or wedge is preferably adapted to the radial position of the end wall of the pressure piece of the assembly tool, so that the pressure piece can drive in the at least one pin or wedge.
  • Another aspect of the invention relates to a method for fastening a threaded insert in an opening of a workpiece.
  • an assembly tool of the type mentioned above is first provided, as well as a threaded insert adapted to the assembly tool.
  • the threaded insert is designed, for example, as a sleeve with an external thread and an internal thread, with at least one longitudinal groove being formed in the outer surface of the threaded insert, in which a pin or wedge is received in such a way that the pin or wedge is axially Direction does not extend completely along the external thread of the threaded insert.
  • the pin or wedge does not initially block the screwing of the external thread of the threaded insert into the workpiece, but rather projects beyond the sleeve-like base body of the insert on the side facing away from the workpiece.
  • the threaded insert is then screwed onto the first external thread of the spindle, the rotation of the spindle relative to the sleeve preferably already being inhibited or blocked for this purpose.
  • the threaded insert is screwed into the opening of the workpiece by rotating the sleeve together with the spindle until the spacer ring or a possibly provided setting ring hits the workpiece with its end face facing away from the sleeve.
  • the lock or inhibition between the sleeve and the spindle is either released automatically as described above or this can be done by a defined engagement, for example by releasing a locking element or switching a ratchet or ratchet.
  • the threaded insert is then anchored in the opening of the workpiece by driving the pin or wedge into the groove and into the workpiece, in which the sleeve is rotated relative to the spindle, the pressure piece and the spacer ring. As described above, this causes an axial relative movement between the sleeve and the pressure piece on the one hand and the fixed spindle with the spacer ring on the other hand.
  • the sleeve is preferably rotated by means of a motor-driven tool, for example by means of a drill, by means of a cordless screwdriver or by means of a pneumatic screwdriver.
  • a motor-driven tool for example by means of a drill, by means of a cordless screwdriver or by means of a pneumatic screwdriver.
  • Such tools can be equipped with an overload clutch, for example a slip clutch, which prevent further drive of the sleeve when a maximum torque is reached.
  • This can be used to complete the driving in of the pins or wedges when the sleeve or preferably the pressure piece has driven in the pins or wedges to such an extent that, for example, they are essentially flush with the sleeve-shaped base body of the insert.
  • the assembly tool can then be released from the workpiece and the threaded insert. This is done by changing the rotational movement of the sleeve. This preferably first causes a relative movement between the sleeve and the spindle again until the spindle is jammed with the sleeve again. Alternatively, this can also be achieved by actively operating a locking element or a ratchet or ratchet. The sleeve and spindle can then be rotated further together so that the spindle unscrews itself from the threaded insert. The assembly tool is now back in its original position.
  • the Figures 1 to 7b show a first embodiment of the assembly tool 1 according to the invention.
  • the assembly tool 1 essentially consists of a sleeve 2 and a spindle 3.
  • the assembly tool 1 also has a pressure piece 4, a bearing 5, a locking ring 6, a spacer ring 7, a pin 8 and Magnets 9 on.
  • the sleeve 2 is provided with an in the Figures 1 and 2 Formed lower cylindrical section, which forms a space for receiving a region of the pressure piece 4, the bearing 5 and the locking ring 6.
  • the upper section of the sleeve 2 is hexagonal on the outside, ie with an engagement means for a torque-transmitting tool, such as a wrench or a motor-driven screwdriver.
  • the upper section of the sleeve 2 defines a substantially cylindrical space which is provided with an internal thread 10.
  • the upper space and the lower space of the sleeve 2 are spaced apart from one another by a radially inwardly projecting flange 11 which has a passage opening for the spindle 3.
  • three permanent magnets 9 are introduced, which make it possible to hold the assembly tool 1 magnetically on a torque-transmitting tool.
  • the spindle 3 can have, for example, a cylindrical shaft which connects two sections each provided with an external thread to one another.
  • a in the Figures 1 and 2 The lower section of the spindle 3 is designed with an outer diameter that is smaller than that of the shaft. This lower section carries a first external thread 12.
  • One in the Figures 1 and 2 The upper section of the spindle 3 is designed with a head-like enlarged outer diameter and has a second external thread 13.
  • a further engagement means for a torque-transmitting tool can be provided, which is designed as a hexagon socket in the embodiment shown.
  • the first external thread 12 of the spindle 3 can, as will be described in more detail below, be screwed into a threaded insert 14, which for example Figures 6a and 7a is shown.
  • the second external thread 13 of the spindle 3 engages the internal thread 10 of the sleeve 2.
  • the spindle 3 is screwed into the sleeve 2 so far that the shoulder between the shaft of the spindle 3 and the head of the spindle 3 bearing the second external thread 13 rests on the flange 11 of the sleeve 2.
  • the lower side of the head of the spindle 3 in the figure forms a stop 11 ′ which, together with the flange 11 forming a counter-stop, act as a locking means for releasably inhibiting a rotation of the spindle 3 relative to the sleeve 2.
  • the spindle 3 and the sleeve 2 are clamped together, similar to a tightly tightened nut on a threaded bolt.
  • the sleeve 2 can only be rotated relative to the spindle 3 when a torque which overcomes this clamping is exceeded.
  • the pressure piece 4 is in the illustrated embodiment, a sleeve-like component with an in the Figures 1 and 2 upper flange-like end.
  • the pressure piece 4 engages around the shaft of the spindle 3 in such a way that the spindle 3 can be moved in the axial direction relative to the pressure piece 4.
  • the pressure piece 4 is rotatably mounted with its flange-like end in the lower region of the sleeve 2.
  • the bearing 5 is provided between the sleeve 2 and the pressure piece 4, which is designed as a nail bearing in the embodiment shown.
  • the pressure piece 4 is held in the sleeve 2 by means of the locking ring 6 in such a way that the pressure piece 4 does not move axially relative to the sleeve 2.
  • the pressure piece 4 At its end facing away from the sleeve 2 (in Figures 1 and 2 below) the pressure piece 4 is provided with an end wall 15 which, for example, can be stepped or, as in the embodiment shown, be provided with a phase. Furthermore, the pressure piece 4 can, as in the embodiment shown, with two each other opposite elongated holes 16 which extend in the longitudinal direction of the assembly tool 1.
  • the spacer ring 7 is also designed as an essentially sleeve-shaped component.
  • the spacer ring 7 has an inner diameter that is slightly larger than the outer diameter of the pressure piece 4, so that the spacer ring 7 engages around the pressure piece 4, but is displaceable relative to it.
  • the pin 8 attaches the spacer ring 7 to the pressure piece 4 and to the spindle 3 by the pin 8 reaching through lateral openings of the spacer ring 7, the elongated holes 16 of the pressure piece 4 and a transverse opening in the shaft of the spindle 3. In this way the spacer ring 7 is connected to the spindle 3 in a rotationally fixed and axially non-displaceable manner. In addition, the spacer ring 7 is connected to the pressure piece 4 in a rotationally fixed but axially displaceable manner.
  • the threaded insert 14 is also designed in the form of a sleeve and has an external thread 17 for screwing into a threaded opening of a workpiece 18.
  • the threaded insert 14 is also provided with an internal thread 19 which is adapted to the first external thread 12 of the spindle 3.
  • Grooves 20, which run in the axial direction, that is to say in the longitudinal direction of the assembly tool, are also formed in the outer circumferential surface of the threaded insert.
  • a pin or wedge 21 is inserted into each groove 20 and is held in the groove 20 by clamping force. If necessary, the wedge 21 can also be detachably connected to the threaded insert 14 in some other way.
  • the wedges 21 stand out as from the Figures 6a and 7a can be seen, initially at the rear in the screwing-in direction, ie on the side facing away from the workpiece 18, over the base body of the threaded insert 14.
  • the wedges 21 do not overlap, or at least only to a small extent, with the external thread 17 of the threaded insert 14, so that the screwing of the threaded insert 14 into the workpiece 18 is not hindered by the wedges 21.
  • a single wedge 21 is sufficient to fix the threaded insert 14 in the workpiece 18.
  • This first operating mode can alternatively also be achieved in that an overload clutch is provided between the sleeve 2 and the spindle 3, which only allows a relative rotation of the sleeve 2 and the spindle 3 when a defined torque is exceeded.
  • another suitable locking means can be provided which releasably prevents a relative rotation of the sleeve 2 and the spindle 3.
  • the first external thread 12 of the spindle 3 protrudes over the end wall facing the workpiece 18 (in Fig. 2 below) of the spacer ring 7.
  • the threaded insert 14 can thus be connected to the assembly tool 1 in that the sleeve 2 is rotated, whereby the spindle 3 is also rotated, and its first external thread 12 is screwed into the internal thread 19 of the threaded insert 14.
  • the wedges 21 protrude into the ring-like space between the Spacer ring 7 and the shaft of the spindle 3.
  • a shoulder 22 is preferably formed at the transition between the shaft of the spindle 3 and the first external thread 12, against which the sleeve-like base body of the threaded insert 14 strikes when the threaded insert 14 is completely screwed onto the spindle 3 is. This is in the Figures 7a and 7b to recognize.
  • the threaded insert 14 can then be guided together with the assembly tool 1 to the workpiece 18 provided with a threaded opening, the threaded insert 14 being screwed into the workpiece 18 in which the sleeve 2 is rotated further.
  • the torque required for this is comparatively small, so that the clamping connection between the sleeve 2 and the spindle 3 is not released, but rather the torque is transmitted via the sleeve 2 into the spindle 3 and into the threaded insert 14. This is in the Figures 6b and 6c shown.
  • the screw-in depth of the threaded insert 14 into the workpiece 18 can be defined, for example, via the axial extent of the spacer ring 7. How out Figure 7a As can be seen, the axial distance D between the side of the shoulder 22 facing the workpiece 18 and the face of the spacer ring 7 facing the workpiece 18 determines the screwing depth of the threaded insert 14 into the workpiece 18. It meets the face of the spacer ring 7 on the surface of the Workpiece 18 when the threaded insert 14 is completely screwed into the workpiece 18.
  • the threaded insert 14 can be screwed deeper into the workpiece 18. Conversely, the threaded insert 14 ends flush with the workpiece surface when the shoulder 22 of the spindle 3 is flush with the end face of the spacer ring 7 or the threaded insert 14 protrudes beyond the workpiece surface 18 when the shoulder 22 of the spindle 3 is set back with respect to the end face of the spacer ring 7.
  • the screw-in depth of the threaded insert 14 can be adapted to different requirements.
  • the screw-in depth of the threaded insert 14 can also be limited by the fact that the wedges 21 hit the workpiece 18.
  • Figure 7a it is shown how an edge of the wedges 21 strikes against a phase of the opening in the workpiece 18 when the end face of the spacer ring 7 touches the surface of the workpiece 18.
  • a lock between the sleeve 2 and the spindle 3 can also be released manually or automatically at this point in time.
  • the assembly tool 1 is transferred to its second operating mode, in which the sleeve 2 and the spindle 3 can be rotated relative to one another.
  • the assembly tool 1 can now be returned to its first operating mode and screwed out of the workpiece 18 and the threaded insert 14.
  • the direction of rotation of the tool driving the sleeve is reversed, as shown in FIG Figures 6e and 6f is indicated. Since the spindle 3 and the spacer ring 7 are at least slightly clamped to the workpiece 18 via the threaded insert 14, if the direction of rotation of the sleeve is reversed, a relative movement between the sleeve 2 and the spindle 3 occurs again until the spindle 3 reaches the position shown in Fig. 2 has reached the starting position shown.
  • the spindle 3 jams again with the latter, so that the spindle 3 and the sleeve 2 are in their first operating mode that is connected to one another in a rotationally fixed manner. Alternatively or additionally, this can be done via a manually or automatically intervening locking device. As the sleeve 2 continues to rotate, the first The external thread 12 of the spindle 3 is unscrewed from the threaded insert 14, whereby the assembly process is completely completed.
  • FIG Fig. 8 An alternative embodiment is shown in FIG Fig. 8 shown.
  • the construction of the assembly tool 1 is essentially the same as that of the previously described embodiment. Identical components are therefore given the same reference numerals.
  • the difference between the first embodiment and the embodiment according to Fig. 8 is that on the spacer ring 7 'after Fig. 8 an external thread 23 is provided.
  • An adjusting ring 24 is screwed onto this external thread 23 with an internal thread.
  • a lock nut 25 is also provided, which likewise engages with the external thread 23.
  • the setting ring 24 can be fixed in its position on the spacer ring 7 'by means of the lock nut 25. With the lock nut 25 loosened, the position of the adjusting ring 24 relative to the spacer ring 7 'can be changed.
  • the spacer ring 7 or 7 ' can be completely omitted.
  • Switching between the first and second operating mode can be triggered, for example, by the fact that the wedges 21 strike the surface of the workpiece 18.
  • the screwing-in process can be ended in the first operating mode by stopping the sleeve 2.
  • the clamping connection between the spindle 3 and the sleeve 3 can then be released by holding the spindle 3 at least briefly relative to the sleeve 2, which then continues to rotate. This can be the case with the Fig. 1
  • the embodiment shown takes place via the means of attack in the head of the spindle 3.
  • the first operating mode can be restored when the spindle 3 and the sleeve 2 are braced against one another by appropriate tool engagement.
  • the pressure piece 4 can be designed in one piece and / or non-rotatably with the sleeve 2 if the bearing 5 is omitted.
  • the end wall 15 and the wedges 21 rotate relative to each other. This is fundamentally undesirable because this relative movement generates friction and can possibly damage the wedges 21.
  • the friction can be counteracted by a corresponding design of the end face 15, for example with a coating.
  • a spacer ring can be provided as described in detail above or can be omitted, as described in relation to the simplified embodiment.
  • the complete installation is converted into a pure rotary movement (left / right).
  • the stroke for pressing in the wedges 21 is generated by a rotary movement by means of the thread 10/13.
  • Tool 1 is compatible with standard screwdrivers and wrenches.
  • the installation depth can be set very precisely, the load on the workpiece 18 being minimal.
  • the installation is very ergonomic and quiet because, unlike before, you do not have to work with a hammer.
  • the assembly tool 1 enables the installation of a threaded insert 14 even with a low overall height and is characterized by good accessibility for limited space.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Claims (10)

  1. Outil d'assemblage pour inserts filetés avec une broche (3) qui est pourvue au moins dans des sections d'un premier filetage extérieur (12) et au moins dans des sections d'un deuxième filetage (13), d'un manchon (2), comprenant un filetage stationnaire (10) qui s'engage avec le deuxième filetage (13), et des moyens de verrouillage (11) pour l'inhibition libérable d'une rotation de la broche (3) par rapport au manchon (2), dans lequel la longueur de la broche (3) et la longueur du manchon (2) sont adaptées l'une à l'autre de telle sorte que le premier filetage extérieur (12) fait saillie au moins partiellement à partir du manchon (2), caractérisé en ce que la broche (3) est couplée de manière non rotative à une bague d'espacement (7, 7') l'entourant au moins dans des sections, dans laquelle la bague d'espacement (7, 7') est mobile axialement avec la broche (3) par rapport au manchon (2).
  2. Outil d'assemblage selon la revendication 1, caractérisé en ce que les moyens de blocage comprennent une butée (11') pour la broche (3) et une contre-butée (11) pour le manchon (2), qui bloquent de manière amovible une rotation de la broche (3) par rapport au manchon (2) lorsque la butée (11') repose contre la contre-butée (11).
  3. Outil d'assemblage selon la revendication 1 ou 2, caractérisé en ce qu'une pièce de pression (4) agencée radialement à l'extérieur de la broche (3) est montée sur ou dans le manchon (2), dans lequel la longueur de la pièce de pression (4) et la longueur de la broche (3) et la longueur du manchon (2) sont adaptées les unes aux autres de telle sorte que le premier filetage extérieur (12) fait au moins partiellement saillie à partir du manchon (2) et à partir de la pièce de pression (4), et dans lequel la pièce de pression (4) comprend une paroi d'extrémité (15) sur le côté opposé au manchon (2).
  4. Outil d'assemblage selon la revendication 3, caractérisé en ce que la pièce de pression (4) est montée sur ou dans le manchon (2) pour être librement rotative par rapport au manchon (2) mais pour ne pas être déplaçable axialement par rapport au manchon (2).
  5. Outil d'assemblage selon l'une quelconque des revendications 3 ou 4, caractérisé en ce que la bague d'écartement (7, 7') est fixée dans la broche (3) au moyen d'une goupille (8), dans lequel des trous oblongs (16) sont fournis dans la pièce de pression (4), dans laquelle la goupille (8) est guidée.
  6. Outil d'assemblage selon les revendications 3 ou 4 et 5, caractérisé en ce que la bague d'écartement (7, 7') peut être déplacée axialement par rapport à la pièce de pression (4) .
  7. Outil d'assemblage selon l'une des revendications 5 ou 6, caractérisé en ce que la bague d'écartement (7') comprend un filetage extérieur (23) qui s'engage avec le filetage intérieur d'une bague d'ajustement (24) entourant la broche (3) au moins dans des sections.
  8. Outil d'assemblage selon l'une des revendications 5 à 7, caractérisé en ce que
    le manchon (2) comprend une première section cylindrique, dans laquelle le filetage (10) conçu comme un filetage intérieur est fourni, et une deuxième section cylindrique, qui est espacée de la première section par une âme ou une bride (11) faisant saillie radialement vers l'intérieur et dans laquelle une section de bride de la pièce de pression (4) est montée de manière rotative et fixée contre un mouvement axial,
    la broche (3) comprend une tige, à la première extrémité de laquelle le premier filetage extérieur (12) et à la deuxième extrémité opposée de laquelle le deuxième filetage (13), conçu comme un filetage extérieur, est fourni, dans laquelle la deuxième extrémité comprend un diamètre agrandi par rapport à la tige,
    la pièce de pression (4) s'engage avec la tige de la broche (3) et comprend deux trous oblongs (16), dans lesquels la bague d'espacement (7, 7') est guidée de manière non rotative et axialement mobile au moyen d'une goupille (8),
    le manchon (2) et la broche (3) sont chacun équipés de moyens d'engagement pour un outil de transmission de couple, et/ ou
    sur le côté de la pièce de pression (4) opposé au manchon (2), une paroi d'extrémité (15) fournie avec un chanfrein et/ ou un épaulement est formée.
  9. Utilisation d'un outil d'assemblage (1) selon l'une quelconque des revendications précédentes pour la fixation d'un insert fileté (14) dans une ouverture d'une pièce à usiner (18), dans lequel l'insert fileté (14) est conçu comme un manchon avec un filetage extérieur (17) et un filetage intérieur (19), dans lequel au moins une rainure s'étendant longitudinalement (20) est formée dans la surface extérieure de l'insert fileté (14), dans laquelle rainure une goupille (21) est reçue, dans lequel le filetage intérieur (19) de l'insert fileté (14) est adapté au premier filetage extérieur (12) de la broche (3) et la position radiale de la goupille (21) est adaptée à la position radiale de la paroi d'extrémité (15) de la pièce de pression (4) .
  10. Procédé de fixation d'un insert fileté (14) dans une ouverture d'une pièce à usiner (18), comprenant les étapes suivantes :
    □ Fourniture d'un outil d'assemblage (1) selon l'une quelconque des revendications précédentes et d'un insert fileté (14) adapté à l'outil d'assemblage (1), dans lequel l'insert fileté (14) est conçu comme un manchon avec un filetage extérieur (17) et un filetage intérieur (19), dans lequel au moins une rainure s'étendant longitudinalement (20) est formée dans la surface extérieure de l'insert fileté (14), dans laquelle rainure une goupille (21) est reçue de telle sorte que la goupille (21) ne s'étende pas complètement dans la direction axiale le long du filetage extérieur (17) de l'insert fileté (14),
    □ Vissage de l'insert fileté (14) sur le premier filetage extérieur (12) de la broche (3) alors qu'une rotation de la broche (3) par rapport au manchon (2) est inhibée ou bloquée,
    □ Vissage de l'insert fileté (14) dans l'ouverture de la pièce à usiner (18) par une rotation du manchon (2) avec la broche (3) jusqu'à ce que la bague d'écartement (7, 7') ou la bague d'ajustement (24) rencontre la pièce à usiner (18) avec sa face d'extrémité étant opposée au manchon (2),
    □ Libération du bloc ou de l'inhibition entre le manchon (2) et la broche (3),
    □ L'ancrage de l'insert fileté (14) dans l'ouverture de la pièce à usiner (18) est assuré par l'entrainement de la goupille (21) dans la rainure (20) et dans la pièce à usiner (18) au moyen d'une rotation du manchon (2) par rapport à la broche (3), à la pièce de pression (4) et à la bague d'écartement (7, 7').
EP17151262.7A 2016-01-20 2017-01-12 Outil de montage, son utilisation et procédé de fixation d'une douille filetée Active EP3205454B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016100933.4A DE102016100933B4 (de) 2016-01-20 2016-01-20 Montagewerkzeug, dessen Verwendung und Verfahren zur Befestigung eines Gewindeeinsatzes

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EP3205454A1 EP3205454A1 (fr) 2017-08-16
EP3205454B1 true EP3205454B1 (fr) 2021-03-03

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US (1) US20170203423A1 (fr)
EP (1) EP3205454B1 (fr)
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Cited By (1)

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WO2024022548A1 (fr) 2022-07-26 2024-02-01 Howmet Aerospace Inc. Outil d'installation, son utilisation et procédé de fixation d'un insert fileté

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EP3219442B1 (fr) * 2016-03-17 2022-01-19 Ludwig Hettich Holding GmbH & Co. KG Élement d'entrainement d'un couple de rotation sur une cosse a insert filete
DE102017111665A1 (de) 2017-05-29 2018-11-29 Profil Verbindungstechnik Gmbh & Co. Kg Klemmeinrichtung
US10668606B2 (en) 2017-12-14 2020-06-02 Raytheon Technologies Corporation Key locked insert installation tool
US10882170B2 (en) 2018-03-08 2021-01-05 United Technologies Corporation Key locking stud installation tool
CN111002269B (zh) * 2020-01-22 2024-05-24 沈阳建筑大学 一种电主轴轴承内圈挡环拆装工具
TWI728845B (zh) * 2020-06-18 2021-05-21 立晏企業有限公司 鐵套拆裝工具
CN113320346A (zh) * 2021-06-30 2021-08-31 重庆长安汽车股份有限公司 一种后纵臂安装结构及车辆

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US5617623A (en) 1995-05-24 1997-04-08 Jergens, Inc. Installation tool for keylocking inserts
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FR2931091B1 (fr) 2008-05-19 2010-06-11 Snecma Outillage de mise en place de douille a clavette et kit comprenant celui-ci
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Publication number Priority date Publication date Assignee Title
WO2024022548A1 (fr) 2022-07-26 2024-02-01 Howmet Aerospace Inc. Outil d'installation, son utilisation et procédé de fixation d'un insert fileté

Also Published As

Publication number Publication date
DE202016100643U1 (de) 2016-02-16
US20170203423A1 (en) 2017-07-20
DE102016100933A1 (de) 2017-07-20
EP3205454A1 (fr) 2017-08-16
DE102016100933B4 (de) 2024-04-25

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