EP3717178A1 - Outil de montage d'un insert fileté en fil métallique - Google Patents

Outil de montage d'un insert fileté en fil métallique

Info

Publication number
EP3717178A1
EP3717178A1 EP18827108.4A EP18827108A EP3717178A1 EP 3717178 A1 EP3717178 A1 EP 3717178A1 EP 18827108 A EP18827108 A EP 18827108A EP 3717178 A1 EP3717178 A1 EP 3717178A1
Authority
EP
European Patent Office
Prior art keywords
coupling part
spindle body
installation
rotation
torque
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.)
Granted
Application number
EP18827108.4A
Other languages
German (de)
English (en)
Other versions
EP3717178B1 (fr
Inventor
Andreas Marxkors
Holger Thommes
Tobias Beyer
Maximilian LEINKENJOST
Klemens RUCHA
Alexej Butov
Marcel Purrio
Hermann Zimmermann
Klaus-Friedrich Grubert
Sascha ZAVAROL
Franz Lutz
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.)
Boellhoff Verbindungstechnik GmbH
Original Assignee
Boellhoff Verbindungstechnik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Boellhoff Verbindungstechnik GmbH filed Critical Boellhoff Verbindungstechnik GmbH
Publication of EP3717178A1 publication Critical patent/EP3717178A1/fr
Application granted granted Critical
Publication of EP3717178B1 publication Critical patent/EP3717178B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/141—Mechanical overload release couplings
    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • B25B23/1427—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by mechanical means

Definitions

  • the present invention relates to an installation tool for a wire thread insert, a torque coupling insertable in such tools and an installation method for a threaded wire insert in a threaded bore.
  • installation tools with a rotating drive unit are generally be known.
  • Such installation tools are used for example for the installation of Drahtgewindeeinsquestioned- in a threaded hole, for screwing a threaded bolt or for tightening or loosening a female threaded member on a threaded bolt or the like.
  • drive units serve in this context pneumatic and electric motors. It is also conceivable to manually drive such installation tools.
  • torque clutches are used in the prior art.
  • Such couplings are also referred to as overload clutch, as described in DE 195 01 084 C2.
  • the overload clutch shown there is used in a power or motor driven tool.
  • This overload clutch consists of driving clutch parts and driven clutch parts.
  • the driving and driven coupling parts are connected to each other via spring means and a biasing force generated above.
  • the mutually spring-biased coupling parts comprise input and output cam disks, which are arranged axially opposite each other.
  • coupling balls are arranged between these input and output cam disks, these coupling balls interacting with the cams such that a detachable drive takes place between the rotary drive input and the rotary drive output.
  • the mutually spring-biased coupling parts of the overload clutch interrupt the power flow between the drive side and output side. This way will avoided that an overload torque reaches the compound to be produced and causes damage there.
  • Known overload clutches work with coupling balls, which are arranged between the oppositely arranged spring-biased coupling parts. These coupling balls ensure low friction between the coupling parts that realize the force flow and are detachable from each other. At the same time, such a complex construction of an overload clutch ensures a high manufacturing and maintenance costs.
  • wire thread inserts require a targeted release or separation the mounting spindle of the screwed wire thread insert or a targeted bending back of parts of the wire thread insert.
  • a wire thread insert with installation pin is installed such that the mounting spindle with the mounting pin makes a positive connection for screwing the wire thread insert. In order to solve the spindle from the threaded opening again, the installation pin must be released from this positive connection.
  • the wire thread insert which is described in DE 10 2010 050 735, requires after its screwing into the desired depth of the threaded opening a targeted bending back of its trunnion. Accordingly, it is necessary for an installation blade to engage this rebulable mounting post to bend it back into the thread of the threaded opening. Only when this additional installation step has been completed, the installation spindle should be removed from the thread opening.
  • the wire thread insert installation tool has the following features: a drive unit, in particular an electric or a pneumatic drive unit, which provides a rotational movement switchable between a first and a second direction, a spindle body with a drive section for rotating the spindle body and with a threaded section, on which the wire thread insert is aufspindelbar and of which the wire thread insert is abspindelbar, an installation blade which is movably disposed in the spindle body between an engaged position and a rest position to selectively attack the wire thread insert and / or to be released from an attack or interference with the wire thread insert, and a Torque coupling consisting of a positive and non-positive intermeshing clutch upper part and lower coupling part consists of which the clutch upper part rotatably connected to the drive unit and the lower coupling part rotatably connected to the spindle body, while having a decoupled relative rotation between
  • the above installation tool for a wire thread insert initially supports the avoidance of torque overload conditions when inserting or installing or screwing the wire thread insert into a threaded opening.
  • the torque coupling used solves the connection between the drive side and the output side of the installation tool as soon as a critical torque, for example, when running up an axial stop of the mounting spindle is reached.
  • an adjusting movement preferably a line-type adjusting movement, generated between one of the coupling halves and a movable actuator.
  • These coupling halves are formed by the above-mentioned upper coupling part and the lower coupling part.
  • an axial movement along an axis of rotation of the upper coupling part and the lower coupling part is preferably triggered at the same time.
  • This axial relative movement between the said actuator and the upper coupling part and / or the lower coupling part can be used for a further step during the installation of the wire thread insert in a threaded bore.
  • This axial relative movement of the actuator is preferably used when releasing an installation blade of the installation tool from an engagement with the wire thread insert.
  • Another alternative is to place the installation blade in an engaged position or other mounting position within the mounting spindle and / or on the wire thread insert.
  • a further preferred embodiment is that a further adjusting element is actuated by means of the axial relative movement of the actuator in addition to an installation blade.
  • This actuator can be used in example to solve the installation pin from engagement of the mounting spindle.
  • the lower coupling part and the upper coupling part are arranged spring biased against each other, so that in a rotational blockade of the coupling lower part via the spindle body, the upper coupling part is rotatable relative to the lower coupling part, wherein the lower coupling part resiliently evades.
  • both coupling parts Due to the shape of the mutually facing sides of the lower coupling part and the upper coupling part, both coupling parts form a positive-locking and / or frictional connection supported by spring preload.
  • the impressed in the coupling parts spring bias determines a release torque between the two coupling parts, which leads to a loosening of the connection between the lower coupling part and the upper coupling part.
  • This release of the coupling parts from each other takes place precisely when said rotation blockage of the coupling lower part or the upper coupling part occurs
  • the coupling lower part is connected to the spindle body, so that a rotational blockade of the spindle body leads to a standstill of the coupling lower part.
  • the coupling upper part comprises a slotted guide, with an axial actuator of the coupling upper part in response to a rotational direction of the upper coupling part is axially displaceable, wherein the axial actuator does not rotate with the upper coupling part.
  • the axial actuator is an axially guided in the clutch upper part clutch piston with an at least one side radially projecting roller pin which engages in the slotted guide.
  • the wire thread insert installation tool is provided such that the spindle is connected to the installation of the wire thread insert with the coupling lower part.
  • the spindle is blocked during installation and thus also the lower coupling part as soon as a certain installation depth or an axial stop of the spindle is reached.
  • the rotational blockage of the spindle leads to a rotation stoppage of the coupling lower part, but does not prevent further rotation of the upper coupling part due to the overload torque occurring.
  • the link guide which is connected in a form-fitting manner to the clutch piston, causes an axial offset of the clutch piston.
  • This movement which can be understood as a secondary use of the release movement between the upper coupling part and the lower coupling part, is used in the context of the present invention for the targeted movement or switching or setting of an axial actuator.
  • the movement profile of the axial actuator can be defined.
  • the coolies sen Adjust defines a curvilinear path, in particular a helical path, in the upper coupling part, which causes a relative axial displacement between the upper coupling part and the clutch piston upon rotation of the upper coupling part relative to the clutch piston.
  • a size of an axial offset and a speed of taking place axia- len offset adjustable is preferable to adjust or tune the movement of the actuator on the thus to be implemented installation function of the installation tool on the shape of the slotted guide.
  • the axial offset of the coupling piston can be transferred to the installation blade via an actuator.
  • the installation blade which is arranged within the spindle body, is used in the installation of a wire thread insert and / or in an uninstalling of Drahtgewin de miches or when processing the wire thread insert in the threaded opening to use. Accordingly, the moving actuator and the installation blade transferred motion used to make installation steps, processing steps and / or De installation sled on a wire thread insert in a threaded opening.
  • the abovementioned axial offset takes place as a function of the direction of rotation of the coupling upper part in comparison to the lower coupling part in the direction of the spindle body or in the direction of the drive unit.
  • the upper coupling part and the lower coupling part in the axial and opposing orientation of end faces depending Weil a circumferential sequence of at least two opposing and adjacent to a common vertex ramps defining an engagement contour between the upper coupling part and lower coupling part.
  • the strength of the detachable connection between the upper coupling part and lower coupling part is also determined by the interlocking contours of the mutually facing surfaces or end faces of the upper coupling part and the lower coupling part.
  • these surfaces of the upper coupling part and the lower coupling part each have at least one cam, which comprises two opposing ramps connected over the common vertex. An inclination of these ramps and the spring preload, which presses the clutch top and the clutch lower part against each other, define a release torque, which is required so that the clutch upper part on the preferably horn mandat coupling lower part can slide in rotation.
  • the shaping contour of the mutually facing sides of the upper coupling part and the lower coupling part as well as the strength of the spring preload between the upper coupling part and the coupling base part can be selectively selected and / or adjusted.
  • an inclination angle of the ramps in combination with the spring preload between the coupling upper part and the lower coupling part determines a limit torque at which a relative rotation between the upper coupling part and the lower coupling part can be generated.
  • the present invention also comprises the above-described wire thread insert A construction tool used torque coupling.
  • This torque coupling can also be used for other tools in which a rotating drive unit is used.
  • These Torque clutch has the following features: a positive and non-positive intermeshing clutch upper part and lower coupling part, of which the upper coupling part or the lower coupling part rotatably connected to a drive unit and the other coupling part rotatably connected to an output unit, while triggered with a decoupled relative rotation between the upper coupling part and lower coupling part by exceeding a limit torque between the upper coupling part and lower coupling part, a linear relative movement between the coupling part coupled to the drive unit and an axially movable actuating unit arranged in this coupling part can be generated.
  • the torque clutch has the property that the lower coupling part and the upper coupling part are spring-biased against each other so that the upper coupling part is rotatable with respect to the lower coupling part when the coupling lower part rotates. This configuration ensures that the torque clutch actually releases the connection between the clutch lower part and the upper part of the clutch when a critical torque is exceeded.
  • the upper coupling part comprises a slotted guide, with which an axial actuator of the upper coupling part in response to a direction of rotation of the coupling upper part is axially displaceable relative to the actuator.
  • the axial actuator is preferably an axially guided in the upper coupling clutch piston with a at least one side radially projecting roller pin, which engages in the above-mentioned slotted guide.
  • the slotted guide is defined as a curvilinear path, in particular a helical path, in the upper coupling part, which causes upon rotation of the upper coupling part ei nen relative axial displacement between Kupplungsobertei 1 and clutch piston.
  • this relative axial offset between the coupling upper part and the coupling piston is preferably transferable via an actuator to the setting unit, in particular to an adjusting unit arranged within the output unit.
  • the axial displacement preferably takes place as a function of the direction of rotation of the upper coupling part in comparison to the lower coupling part in the direction of the output unit or in the direction of the drive unit.
  • the coupling upper part and the coupling lower part in the axial and opposite orientation in each case a circumferential sequence of at least two opposite and adjacent to a common vertex ramps, which define an engagement contour, preferably a direct engagement contour, between the upper coupling part and Kupplungsuntertei 1.
  • the used angles of inclination of the ramps in the direction of the apex in combination with a spring preload between the coupling upper part and the lower coupling part, produce a limit torque at which a relative rotation between the upper part of the coupling and the lower part of the coupling and a relative displacement between an actuator and the upper part of the coupling or the lower part of the coupling can be generated.
  • the present invention also discloses an installation method for a wire thread insert in a threaded opening with an installation tool according to one of the embodiments described above.
  • the installation method comprises the following steps: Spindle the wire thread insert onto the spindle body in a first direction of rotation of the spindle body, attaching the spindle body with wire thread insert at the threaded opening and screwing the wire thread insert into the threaded opening by means of the spindle body by rotation of the spindle body in the first direction of rotation until a stop blocks further axial screwing of the spindle body, triggering the torque coupling by blocking the spindle body, so that the installation blade over a relative movement to the spindle body is placed in an attack position / operating position or is moved from the operating position to a rest position, and rotating the spindle body i n a second direction of rotation until the wire thread insert is unwound from the spindle body.
  • the inventively preferred installation method for a wire thread insert utilizes the above-described advantageous properties of the installation tool with torque coupling.
  • a wire thread insert is usually screwed so deep into a threaded opening by the installation tool until the spindle of the installation tool is blocked by a depth stop in another rotary motion. This depth stop determines the depth at which the wire thread insert is to be installed in the threaded opening.
  • the blockade of the rotational movement of the spindle simultaneously leads to the fact that a further common rotation of the coupling upper part and the lower coupling part is prevented due to the releasable positive and non-positive connection existing between them. But since the drive unit continues to be in operative connection with the torque clutch, the
  • the installation method also preferably comprises the further step: bending back a trunnion of the wire thread insert into a thread of the threaded opening through the handle position offset into the installation blade during rotation in the second direction of rotation.
  • a compression of the trunnion after bending back and switching the torque clutch when reaching a limit torque in combination with a displacement of the installation blade from an attack position on the wire thread insert in a rest position is further preferably carried out between the first and the second rotational direction.
  • FIG. 1 is an exploded view of a preferred embodiment of the installation tool
  • FIG. 2 is a side sectional view of a preferred embodiment of the installation tool according to the invention.
  • FIG. 3 is another side sectional view of the preferred installation tool
  • FIG. 4 is an illustration of a first sequence of movement of the installation tool in turning a wire thread insert into a threaded opening; 5 shows a further preferred sequence of movement of the installation tool in blocking the further rotation of the spindle body due to the depth stop,
  • FIG. 6 shows an illustration of a subsequent sequence of movements of a blockage of the spindle body through the depth stop
  • FIG. 7 is a sectional view of the preferred embodiment according to FIG. 6 for illustrating the internal movement sequences in the installation tool
  • FIG. 8 shows an illustration of a further movement sequence of the installation tool in FIG.
  • FIG. 9 shows an illustration of a further preferred sequence of movements during the backward rotation of the preferred installation tool, FIG.
  • FIG. 10 is a sectional view of a preferred embodiment of the installation tool according to FIG. 9 for illustrating the inner movement processes in the installation tool;
  • FIG. 11 shows an illustration of a further sequence of movement of the preferred installation tool during the turning back
  • FIG. 12 shows a preferred embodiment of the interference suppression block of the preferred installation tool
  • FIG. 13 shows a preferred representation of the activation of the preferred installation tool when using the interference suppression function
  • FIG. 14 shows an illustration of the preferred movement sequences during the use of the interference suppression function
  • Figure 15 is a flow chart of a preferred embodiment of the invention.
  • the installation tool 1 comprises a drive unit 10.
  • the drive unit 10 is preferably driven electrically or pneumatically. It also preferably comprises a start switch 12 in order to switch off the drive unit 10 another way. Accordingly, a spindle body 20 starts to rotate or stops its rotation when the start switch 12 is operated.
  • the drive unit 10 preferably comprises a direction of rotation change switch 14. If this is preferably actuated in combination with the start switch 12, the direction of rotation of the drive unit 10 reverses.
  • the drive unit 10 facing away from the spindle body 20 has a threaded portion 22. On this, the wire thread insert to be installed is spindled or unwound from it.
  • the spindle body 20 has an internal cavity in which a slider 24 is arranged.
  • the slider 24 is axially displaceable on the triggering of a torque clutch or a clutch assembly 30, which is explained in more detail below.
  • an opening to the inner cavity of the spindle body 20 is provided at an installation end of the spindle body 20 that faces away from the drive unit 10. Accordingly, at this point preferably an adjustable blade 28 or the slider 24 engages outwardly from the interior of the spindle body 20.
  • the installation end preferably has an installation structure in order to hold a wire thread insert rotationally fixed on the threaded portion 22.
  • the preferred installation structure for a wire thread insert with a fold-back pin is described in DE 10 2010 050 735 and is incorporated by reference.
  • the installation struc ture alternatively consists of a radially extending recess or groove.
  • the installation blade 28 can also be used as the installation structure, which preferably engages in a notch of the wire thread insert arranged radially inwards.
  • a depth stop 26 is preferably arranged on the threaded portion 22. If the Ge threaded portion 22 with wire thread insert to the depth stop 26 in a threaded hole screwed in, then blocked the depth stop 26 further screwing and further rotation of the spindle body 20 in the direction of insertion or installation direction Ri (S2, S3)
  • the clutch arrangement 30 provides a releasable connection between tween the drive unit 10 and the spindle body 20 ago. This detachable connection transmits the rotational movement of the drive unit 10 to the spindle body 20 or interrupts the power flow between the drive unit 10 and the spindle body 20.
  • the torque coupling 30 preferably comprises a coupling lower part 32, which is spring-biased against a clutch top 34. The spring preload generates a spring 36.
  • On the upper coupling part 34 and lower coupling part 32 is preferably a coupling surface 38, 40 is provided.
  • These coupling surfaces 38, 40 face each other and are pressed against each other via the spring 36 releasably.
  • a form-fitting and a frictional connection is created between the upper coupling part 34 and the lower coupling part 32, which transmits the rotation of the drive unit 10 to the spindle body 20.
  • each coupling surface 38, 40 comprises at least one cam 39, 41, preferably in each case two, which are delimited by adjacent valleys. Based on this shape, the coupling surfaces 38, 40 preferably fit into each other. In this case, each cam 39, 41 has a vertex, over which two oppositely inclined ramps are connected to each other.
  • the upper coupling part 34 is rotatably connected in the preferred embodiment of the installation tool 1 with the drive unit 10.
  • the lower coupling part 32 is preferably non-rotatably connected to the spindle body 20. At the same time, however, the lower coupling part 32 is deflectable in the axial direction, ie in the direction of the spindle body 20, against the force of the spring 36.
  • the spin del moments 20 rotates with the wire thread insert according to the direction of movement of the receiving thread of the threaded hole. Once the depth stop 26 runs onto the threaded member, the spindle body 20 is blocked against further rotation.
  • the limit torque is preferably first determined by the biasing force of the spring 36 between the upper coupling part 34 and the lower coupling part 32.
  • the adjacent coupling surfaces 38, 40 are flat. A frictional connection between the two coupling surfaces 38, 40, which would be determined solely by the surface friction, then sets the limit torque.
  • the coupling surfaces 38, 40 are preferably also profiled or roughened.
  • the coupling surfaces 38, 40 have intermeshing cams and valleys, as can be seen in FIGS. 5, 6, 8.
  • a cam is correspondingly formed by two ramps approaching a vertex.
  • the limit torque of the torque clutch 30 can be adjusted. The steeper the ramps rise to the vertex, the higher must be the limit torque for triggering the torque clutch 30.
  • the lower coupling part 32 is provided with an axial cavity.
  • the slide connection 42 preferably serves to transmit a linear movement along the longitudinal axis of the installation tool 1.
  • slide connection 42 preferably serves to transmit a linear movement along the longitudinal axis of the installation tool 1.
  • slide 24 and slide connection 42 are rotatably connected to the spindle body 20 and / or the lower coupling part 32. As a result, they can not be twisted against each other.
  • the upper coupling part 34 is provided as a hollow cylindrical sleeve at least over an axial partial area.
  • the clutch piston 44 preferably has at least one roller pin 46, which protrudes radially outward.
  • the roller pin 46 is fixedly arranged in the clutch piston 44.
  • the roller pin 46 is preferably received and guided in a slotted guide 48 of the upper coupling part 34. If the clutch arrangement 30 is in the undissolved state, then the clutch top part 34 rotates together with the clutch piston 44 and the clutch lower part 32.
  • the rotation of the clutch piston 44 is based on the rotary drive of the roller pin 46 through the slotted guide 48 , 41 and valleys of the coupling surfaces 38, 40, the rotationally fixed connection of the clutch piston 44 with the spindle body 20 via the slide connection 42 is formed.
  • the clutch piston 44 is preferably connected in a rotationally fixed manner to the lower coupling part 32 and / or to the spindle body 20.
  • the roller pin 46 remains in its rotational angular position while the slotted guide 48 of the upper coupling part 34 moves on.
  • the slotted guide 48 has a slope, preferably has the slotted guide 48 is a helical shape, the clutch piston 44 is offset in a relative rotation between the clutch piston 44 and clutch top 34 in the axial direction. The strength and direction of the axial offset of the clutch piston 44 is determined by the pitch and the direction of passage of the link guide 48.
  • the threaded portion 22 preferably has a right-handed thread, so that the drive unit 10 operates clockwise for installation (see arrows in FIG. 4). In a left-handed thread on the threaded portion 22, the necessary for the drive and installation movements take place in the opposite direction Rich.
  • the upper coupling part 34 continues to rotate relative to the lower coupling part 32 (see FIG. 5). Since the clutch piston 44 is non-rotatably connected to the clutch lower part 32, the slotted guide 48 rotates relative to the roller pin 46 arranged therein (S4). According to the preferred embodiment shown in Figure 5, the slotted guide 48 has a slope in the installation direction Ri similar to a left-hand thread. Thus, when the link guide 48 is rotated clockwise about the clutch piston 44, the link guide 48 displaces the clutch piston 44 above the roller pin 46 in the direction of installation Ri. With this preferred axial movement, the slider 24 is axially displaced to move the mounting blade 28 from inside the vehicle Spindle body 20 to move outward (S4).
  • the further instal lation of the wire thread insert is preferably prepared with Jenkinsbiegb aren pin, as described in DE 10 2010 050 735.
  • Generally exhibiting the installation blade 28 is realized by the axial movement of the clutch piston 44 in the installation direction Ri. This movement is preferably also used for ejecting a trunnion of a wire thread insert from a radial groove at the installation end of the threaded portion 22.
  • the ball guide 48 preferably has the course similar to a clockwise-rotating drive unit 10
  • the relative rotation between the lower coupling part 32 and in the upper coupling part 34 would provide for axial displacement of the coupling piston 44 against the installation direction Ri.
  • the slide guide 48 would have to be inclined in the opposite direction, i. at an axial offset in the installation direction Ri similar to a right-hand thread and counter to the installation direction Ri similar to a left-hand thread.
  • the offset in the installation direction Ri is also schematically illustrated in FIG. Here it can be seen how the axial displacement of the clutch piston 44 transmits via the slide connection 42 to the slide 24 and the installation blade 28.
  • FIG. 10 shows how a preferred axial offset takes place counter to the installation direction Ri. Since preferably the clutch piston 44, the slide connection 42, the slider 24 and the installation blade 28 are axially coupled, the axial displacement of the clutch piston 44 leads to a retraction of the
  • the direction of rotation of the drive unit 10 is preferably reversed (S7). According to a preferred embodiment, this is done by triggering or pressing the start switch 12 and the change of direction switch 14th at the same time. It is also preferable to provide only one switch for this function or to automatically change the direction of rotation. According to a preferred embodiment of the present invention, there is no engagement of the switch for changing the direction of rotation when the direction of rotation is changed. In this way, the handling and application of the installation tool is facilitated.
  • the rotational blockade of the spindle body 20 also blocks the lower coupling part 32.
  • the upper coupling part 34 continues to rotate relative to the lower coupling part 32 and axially displaces the clutch piston 44 counter to the installation direction Ri.
  • the installation blade 28 is released from engagement or attack on the wire thread insert (S6). Thereby, the rotation blockage of the spindle body 20 is released and the threaded portion 22 is unwound from the installed wire thread insert (S9).
  • the installation blade 28 attacks according to a preferred embodiment of the present invention at the end of the wire thread insert to be crushed. This attack is preferably due to a frictional engagement between the Installation blade 28 un supported the end of the wire thread insert, which possibly makes it difficult to release the installation blade 28 by said axial displacement. Therefore, it is before given to the above axial offset for releasing the connection between installation blade
  • This counter rotation comprises a rotation angle of less than 360 °, preferably 180 ° or even less than 90 °.
  • this counter rotation relieves the installation blade 28. He then follows the above-described Axialversatz the installation blade 28, preferably this movement is not hindered by friction losses.
  • the direction of rotation of the drive unit 10 is preferably first switched in the thread direction of the threaded portion 22. So with a new wire thread insert on the threaded portion 22 spindles (Sl) and subsequently installed.
  • the suppressor block 50 is preferably a pin that is pressed against a flat surface or into a depression or into a groove on the spindle body 20.
  • suppressor block 50 prevents rotation of the spindle body 20.
  • the direction of rotation of the drive unit 10 is preferably changed, in which the start scarf ter 12 and the change of direction switch 14 are actuated simultaneously (S7).
  • the result in rotation offset drive unit 10 generates an exceeding of the limit torque, because the all-drive unit 10 tries to rotate the upper coupling part 34 against the fixed clutch lower part 32.
  • the clutch assembly 30 triggers and switches axially the clutch piston 44 and thus the paving blade 28 back to the starting position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Bridges Or Land Bridges (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

Outil de montage pour un insert fileté en fil métallique comprenant les caractéristiques suivantes : une unité d'entraînement, qui fournit un mouvement de rotation pouvant être commuté entre un premier sens et un deuxième sens, un corps de broche comprenant une section d'entraînement pour la rotation du corps de broche et une section filetée sur laquelle l'insert fileté en fil métallique peut être monté, un filet rapporté ainsi qu'un couplage de couple, qui est composé d'une partie supérieure d'accouplement et d'une partie inférieure d'accouplement à engagement mutuel par coopération de forme et liaison de force, dont la partie supérieure d'accouplement est reliée solidairement en rotation à l'unité d'entraînement et la partie inférieure d'accouplement est reliée solidairement en rotation au corps de broche, une rotation relative découplée entre la partie supérieure d'accouplement et la partie inférieure d'accouplement, déclenchée par le dépassement d'un couple limite entre la partie supérieure d'accouplement et la partie inférieure d'accouplement, permet de générer un mouvement relatif entre le corps de broche et le filet rapporté.
EP18827108.4A 2018-01-16 2018-12-21 Outil de montage d'un insert fileté en fil métallique Active EP3717178B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018100832.5A DE102018100832A1 (de) 2018-01-16 2018-01-16 Einbauwerkzeug für einen Drahtgewindeeinsatz
PCT/EP2018/086579 WO2019141497A1 (fr) 2018-01-16 2018-12-21 Outil de montage d'un insert fileté en fil métallique

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EP3717178A1 true EP3717178A1 (fr) 2020-10-07
EP3717178B1 EP3717178B1 (fr) 2022-12-14

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EP (1) EP3717178B1 (fr)
KR (1) KR102424657B1 (fr)
CN (1) CN111655431B (fr)
DE (1) DE102018100832A1 (fr)
ES (1) ES2938862T3 (fr)
HU (1) HUE061309T2 (fr)
PL (1) PL3717178T3 (fr)
WO (1) WO2019141497A1 (fr)

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CN110125872A (zh) * 2019-04-03 2019-08-16 西南电子技术研究所（中国电子科技集团公司第十研究所） 机动式钢丝牙套卸套器装置
CN110450092A (zh) * 2019-09-06 2019-11-15 杭叉集团股份有限公司 一种用于叉车安全架的装配工具
DE102019133161A1 (de) * 2019-12-05 2021-06-10 Schaeffler Technologies AG & Co. KG Antriebsstrang mit Überlastdämpfer
KR20220020495A (ko) 2020-08-12 2022-02-21 주식회사 엘지에너지솔루션 퇴화 셀 제조방법 및 퇴화 셀 평가 방법
ES2955783T3 (es) 2020-08-13 2023-12-07 Boellhoff Verbindungstechnik Gmbh Máquina automática de instalación para una herramienta de instalación para un inserto de rosca de alambre y procedimiento de instalación
CN113799057A (zh) * 2021-09-26 2021-12-17 北京中燕建设工程有限公司 一种带力矩测量的压缩机探头安装工具
US20230294257A1 (en) * 2022-03-15 2023-09-21 Toyota Motor Engineering & Manufacturing North America, Inc. Retainer installation tool

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KR102424657B1 (ko) 2022-07-22
CN111655431B (zh) 2022-06-07
CN111655431A (zh) 2020-09-11
WO2019141497A1 (fr) 2019-07-25
DE102018100832A1 (de) 2019-09-19
ES2938862T3 (es) 2023-04-17
KR20200100842A (ko) 2020-08-26
US20210060746A1 (en) 2021-03-04
PL3717178T3 (pl) 2023-04-17
US11648651B2 (en) 2023-05-16
EP3717178B1 (fr) 2022-12-14
HUE061309T2 (hu) 2023-06-28

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