WO2002030614A1 - Adapter spindle-bearing arrangement for an assembly frame - Google Patents

Adapter spindle-bearing arrangement for an assembly frame Download PDF

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Publication number
WO2002030614A1
WO2002030614A1 PCT/EP2001/011683 EP0111683W WO0230614A1 WO 2002030614 A1 WO2002030614 A1 WO 2002030614A1 EP 0111683 W EP0111683 W EP 0111683W WO 0230614 A1 WO0230614 A1 WO 0230614A1
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WO
WIPO (PCT)
Prior art keywords
adapter
mounting
spindle
adapter spindle
receptacle
Prior art date
Application number
PCT/EP2001/011683
Other languages
German (de)
French (fr)
Inventor
Ralf BRÜCKMANN
Original Assignee
Expert Maschinenbau 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 Expert Maschinenbau Gmbh filed Critical Expert Maschinenbau Gmbh
Publication of WO2002030614A1 publication Critical patent/WO2002030614A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • B23P19/06—Screw or nut setting or loosening machines

Definitions

  • the invention relates to a mounting arrangement for mounting components, such as rear axles, engine and transmission assemblies, tanks and exhaust systems of motor vehicles in individual or successive assembly stations in the large-scale production of motor vehicles, bearing arrangement for drive spindles which can be rotated and in predetermined Dimensions are slidably mounted in a bearing housing that can be attached to the mounting frame at a right angle to the axis of rotation of the spindle and have a receptacle for an assembly tool, such as a screwdriver, wrench, nut holder, socket, etc., at their end that is to be held are formed at their opposite end in such a way that it can be rotatably inserted into a chuck which can be driven by a motor drive machine.
  • assembly tool such as a screwdriver, wrench, nut holder, socket, etc.
  • Such adapter spindles are installed on assembly frames, which in stations of an assembly line for workpieces, e.g. Body-in-white or floor assemblies of motor vehicles are arranged, the mounting frames being fitted with attachments which are then each attached to the workpiece, i.e. the floor assembly, must be installed before the
  • the mounting parts to be fastened to the floor assembly for example brackets for exhaust pipe conditions, receptacles for the fuel tank, brackets for the rear axle, etc., whereupon these brackets are then attached to the floor assembly by means of corresponding motor-driven screwing tools on the floor assembly.
  • the actual screwing tools that engage the fastening elements for the holder must be arranged at different distances from an imaginary mounting level of the mounting frame, since they have to be partially inserted, for example, into the jagged underside of the floor. It is therefore out of the question to attach the actual drive machines for the screwing tools directly to the mounting frame, since there is usually no space for this. For this reason, the here in on the mounting frame
  • the end of the adapter spindle usually has a standardized square connection - e.g. Provide an 1/2 "connection for the attachment of the respective screwing tool, e.g. from the square recesses for nuts or screw heads, etc.
  • the opposite lower end of the connection e.g. Provide an 1/2 "connection for the attachment of the respective screwing tool, e.g. from the square recesses for nuts or screw heads, etc.
  • Drive spindle on which the actual drive machine, i.e. a screwdriver that can be attached must be designed according to the connections of this drive machine.
  • these machines have nut-like receptacles for one provided on the adapter spindle
  • Hexagon spigot - for example a wrench size of 17 mm. These hexagon pegs have been used so far adapter spindles located directly on the drive end of the adapter spindle.
  • the wrench size of the drive machine receptacle specifies the diameter of the adjoining part of the drive spindle, which, for example with a wrench size of 17 mm, must be approximately 20 mm in diameter.
  • the rotatable and laterally deflectable bearing of the adapter spindle in the associated bearing housing must then be configured, i.e. the dimensions of the bearing housing are also specified by the diameter of the drive spindle specified by the structural connection dimensions of the drive machine. At least in individual cases - e.g. If space is limited in the recesses of the floor assembly in which the additional attachment is to be attached, the diameter of the bearing housing can be critical.
  • mounting elements for the attachments to be attached to the floor assembly must also protrude from the mounting frame to the attachment point. The arrangement of these mounting parts at predetermined mounting points via separate supports etc. also requires space.
  • the invention is based on the object of minimizing the dimensions of the bearing housings for the adapter spindle in question here, as well as for the attachment-element elements, in such a way that the spatial problems described are reduced to such an extent that even on spatially unfavorable recessed areas Bottom assembly can still be screwed on.
  • the adapter spindle specifies a maximum torque to be transmitted from the motor drive machine to the assembly tool and the dimension of the mounting of the assembly tool.
  • NEN has the smallest possible diameter that the end of the adapter spindle opposite the receptacle for the assembly tool is provided with a receptacle corresponding to the receptacle for the assembly tool, and that an adapter which is non-rotatably attachable to the receptacle on the end of the adapter tool and faces the receptacle of the drive machine -Intermediate piece is provided.
  • the diameter of the actual adapter spindle is thus determined - taking into account the torque to be transmitted - exclusively from the structural dimensions of the receptacle for the assembly tool, which - as already mentioned - is generally a square with a smaller cross section than the usual one Hexagon pin for the feed of the drive machine has.
  • the drive spindle itself can therefore be manufactured with a correspondingly reduced diameter, but in this case there is no longer any possibility of working on the suitable end with a hexagonal cross section at the end of the drive machine, which fits the chuck of the drive machine.
  • the end of the drive spindle on the drive machine side was designed accordingly, corresponding to the opposite end, which carries the receptacle for the assembly tool, ie in a special case provided with a square.
  • an adapter intermediate piece is provided, which is provided on the adapter spindle side complementary to the receptacle at the assigned end of the adapter spindle and on the drive machine side with a corresponding connection pin which can be inserted into the chuck of the drive machine.
  • both the receptacle for the assembly tool and the receptacle on the end of the adapter spindle facing away from the assembly tool are preferably designed as a square head with standardized dimensions, in which case the adapter intermediate piece on the receiving side has a recess which accommodates the square head on the adapter spindle and is complementary on the drive machine side has a hexagonal cross section which can be inserted into the chuck of the drive machine. Due to the smaller diameter of the spindle then to be stored in the bearing housing, this bearing housing can also be reduced in its outer dimensions compared to the bearing housings for drive machines in the form used previously.
  • a second measure for reducing the space requirement for the parts protruding from the mounting frame then consists in that the bearing housing holding the actual adapter spindle has a cylindrical fastening surface, at least in an area facing the mounting frame, on which the mounting elements for the mounting parts are attached can be arranged.
  • the mounting elements can then be fastened to the bearing housing in the immediate vicinity of the adapter spindle, so that - in contrast to the mounting elements previously mounted separately on the mounting frame - they also take up less space and it is therefore possible to also create recessed areas with small free passage areas in the To reach the bottom of the floor assembly to be fitted with the attachments.
  • FIG. 1 shows a longitudinal central section through an adapter spindle according to the invention -
  • FIG. 2 shows a bearing arrangement similar to the adapter spindle bearing arrangement according to FIG. 1 in its assembly position on a section of an assembly frame with tubular conveying means arranged on the bearing housing.
  • Miger bracket for a bracket element for the attachment to be assembled.
  • the adapter spindle bearing arrangement according to the invention shown in FIG. 1 and designated in its entirety by 10 comprises the actual adapter spindle 12, which is supported by an elongated shaft - e.g. from a bright drawn round steel with the same diameter throughout from a high-strength steel alloy, e.g. 42CrMo5 - is formed.
  • a square head 14 or 16 emerges integrally from the end faces of the ends of the adapter spindle 12, of which the square head 14 shown in the drawing for the rotationally fixed fastening of an assembly tool, for example the nut shown in FIG. 2 with an inserted screw 18 with a hexagon head 20 may serve.
  • an adapter intermediate piece 22 is fastened, from the end surface of which faces away from the spindle projects the pin 24, which is designed and dimensioned accordingly, for insertion into the chuck of a conventional, motor-driven screwdriver, and has a diameter of hexagonal.
  • the drive spindle 12 is rotatable in a bearing housing 26 and is longitudinally displaceable by a predetermined stroke and, in addition, to compensate for inaccuracies in the position of the mounting points, is displaceably displaceable by a predetermined (small) amount.
  • the bearing housing 26 Over most of its length, the bearing housing 26 has a cylindrical, that is to say circularly limited outer shape in diameter. In the case shown, only the lower end region of the bearing housing is designed as a mounting flange 28 which is square in plan view and enlarged compared to the diameter of the cylindrical part.
  • the rotatable and longitudinally displaceable mounting of the spindle 18 within the housing is carried out by two spaced apart Bearing bushes 30, 32 are taken over, which are inserted into receptacles in a spacer sleeve 34, which in turn are supported on the end face via longitudinal ball bearings 36, 38 on a radially projecting collar of the bearing housing 26 or a bearing cover 40 screwed into a threaded bore in the bearing housing at the opposite end , Since the spacer sleeve 34 has a significantly reduced outer diameter compared to the clear inner diameter of the bearing housing 26, the above-mentioned transverse play to compensate for inaccuracies in the position of the mounting points is given within the scope of the play between the spacer sleeve and the inner wall of the bearing housing.
  • the measure of the longitudinal displaceability of the drive spindle 12 in the bearing housing is predetermined by stop rings 42, 44 which can be pushed onto the spindle 12 on opposite sides of the bearing housing 26 and can be clamped in the predetermined fastening position by grub screws.
  • stop rings 42, 44 which can be pushed onto the spindle 12 on opposite sides of the bearing housing 26 and can be clamped in the predetermined fastening position by grub screws.
  • the adapter spindle bearing arrangement 10 described in connection with FIG. 1 is shown attached to a mounting plate 46 welded to the mounting frame, which is otherwise not shown, wherein it is additionally illustrated that the cylindrical outer section of the bearing housing 26 serves as a holder for one of the top made of attached hollow cylindrical, ie tubular carrier 48, which is penetrated by the adapter spindle 12.
  • a holding plate 52 is welded onto a section 50 of the tubular carrier 48, which section is extended over a partial section and which carries a holding element 54 in the form of a fitting bolt, on which the - by means of the screw 18 on the underside of an assembly - is to be fastened. fixing (not shown) attachment is held in the properly aligned mounting position. It should be mentioned that - at least larger - add-on parts are usually screwed several times, so that a corresponding number of adapter spindle bearing arrangements and mounting elements must be provided on the associated mounting frame for their attachment.

Abstract

A bearing arrangement (10) for drive spindles (12) which can be arranged on assembly frames in order to retain components such as rear axles, engine and gear box structural components, tanks and exhaust gas systems in motor vehicles in individual or successive assembly stations in the mass production of motor vehicles. The adapter spindle (12) has a diameter which is as small as possible, determined by the maximum moment transmitted by the motor-driven drive machine to the assembly tool (20) and the dimensions for receiving the assembly tool (20). The end of the adapter spindle (12) opposite the receiving element for the assembly tool (20) is provided with a receiving element corresponding to the receiving element for the assembly tool (22). An intermediate adapter element is also provided, said intermediate adapter element being able to be placed in a rotationally fixed manner on the receiving element on the end of the adapter spindle (12) facing away from the assembly tool, fitting into the casing element of the drive machine.

Description

Adapterspindel -Lageranordnung für Montagerahmen Adapter spindle bearing arrangement for mounting frames
Die Erfindung betrifft eine an Montagerahmen zur Halterung von Bauteilen, wie Hinterachsen, Motor- und Getriebe-Baugruppen, Tanks und Abgasanlagen von Kraftfahrzeugen in einzelnen oder aufeinander folgenden Montagestationen in der Großserienfertigung von Kraf fahrzeugen anbringbare Lageranordnung für Antriebsspindeln, die drehbar und in vorgege- benem Maße in einer rechtwinklig zur Spindel-Drehachse ver- schieblich in einem am Montagerahmen befestigbaren Lagergehäuse gehaltert sind und an ihrem dem zu halternden An- bauteil zugewandten Ende eine Aufnahme für ein Montagewerkzeug, wie Schraubendreher, Schraubenschlüssel, Mutternauf- nähme, Stecknuss etc. aufweisen und an ihrem gegenüberliegenden Ende so ausgebildet sind, dass dieses in ein von einer motorischen Antriebsmaschine drehantreibbares Futter drehfest einführbar ist.The invention relates to a mounting arrangement for mounting components, such as rear axles, engine and transmission assemblies, tanks and exhaust systems of motor vehicles in individual or successive assembly stations in the large-scale production of motor vehicles, bearing arrangement for drive spindles which can be rotated and in predetermined Dimensions are slidably mounted in a bearing housing that can be attached to the mounting frame at a right angle to the axis of rotation of the spindle and have a receptacle for an assembly tool, such as a screwdriver, wrench, nut holder, socket, etc., at their end that is to be held are formed at their opposite end in such a way that it can be rotatably inserted into a chuck which can be driven by a motor drive machine.
Derartige Adapterspindeln werden an Montagerahmen installiert, welche in Stationen einer Montagelinie für Werkstücke, z.B. Rohkarosserien oder Bodengruppen von Kraftfahrzeugen angeordnet sind, wobei die Montagerahmen mit Anbauteilen bestückt werden, die dann jeweils am Werkstück, d.h. der Bodengruppe, montiert werden müssen, bevor dieSuch adapter spindles are installed on assembly frames, which in stations of an assembly line for workpieces, e.g. Body-in-white or floor assemblies of motor vehicles are arranged, the mounting frames being fitted with attachments which are then each attached to the workpiece, i.e. the floor assembly, must be installed before the
Bodengruppe weitergefördert wird. Auf diesen Montageplattenformen müssen also die an der Bodengruppe zu befestigenden Anbauteile, beispielsweise Halterungen für Abgasleitun- gen, Aufnahmen für den Kraftstofftank, Halterungen für die Hinterachse etc. bestückt werden, worauf diese Halterungen dann nach Ansetzen an der betreffenden Bodengruppe mittels entsprechender motorisch angetriebener Schraubwerkzeuge an der Bodengruppe befestigt werden. Unabhängig von der formalen Ausgestaltung der jeweiligen Bodengruppe müssen die eigentlichen, an den Befestigungselementen für die Halterung angreifenden Schraubwerkzeuge in unterschiedlichen Abständen von einer gedachten Montageebene des Montagerahmens an- geordnet werden, da sie zum Beispiel zum Teil in die zerklüftete Unterseite des Bodens eingefahren werden müssen. Es kommt also nicht in Frage, die eigentlichen Antriebsmaschinen für die Schraubwerkzeuge direkt an Montagerahmen zu befestigen, da hierfür in der Regel kein Platz vorhanden ist . Aus diesem Grund werden am Montagerahmen die hier inBodengruppe is promoted. The mounting parts to be fastened to the floor assembly, for example brackets for exhaust pipe conditions, receptacles for the fuel tank, brackets for the rear axle, etc., whereupon these brackets are then attached to the floor assembly by means of corresponding motor-driven screwing tools on the floor assembly. Regardless of the formal design of the respective floor assembly, the actual screwing tools that engage the fastening elements for the holder must be arranged at different distances from an imaginary mounting level of the mounting frame, since they have to be partially inserted, for example, into the jagged underside of the floor. It is therefore out of the question to attach the actual drive machines for the screwing tools directly to the mounting frame, since there is usually no space for this. For this reason, the here in on the mounting frame
Frage stehenden Adapterspindeln montiert, welche drehbar in einem Lagergehäuse gehalten sind, das seinerseits in der geeigneten Höhenstellung des Montagerahmens montierbar ist. Dieses Lagergehäuse muss die Adapterspindeln also einer- seits drehbar lagern, wobei aber zum Ausgleich von Monta- geungenauigkeiten etc. auch gewisse horizontale Versetzungen der eigentlichen Adapterspindel in einem vorgegebenen Rahmen möglich sein müssen, so dass Montageungenauigkeiten der Befestigungspunkte der jeweiligen Bodengruppe ausgegli- chen werden können. Das der Bodengruppe zugewandte freieQuestion mounted adapter spindles, which are rotatably held in a bearing housing, which in turn can be mounted in the appropriate height position of the mounting frame. This bearing housing must therefore rotate the adapter spindles on the one hand, but in order to compensate for mounting inaccuracies, etc., certain horizontal displacements of the actual adapter spindle must also be possible within a predetermined frame, so that mounting inaccuracies of the fastening points of the respective base group can be compensated for , The free one facing the floor assembly
Ende der Adapterspindel weist in der Regel einen genormten Vierkantanschluss - z.B. eine l/2 " -Anschluss für die Befestigung des jeweiligen Schraubwerkzeugs, z.B. vo Vierkant mitgenommenen Aufnahmen für Muttern oder Schraubenköpfe etc., versehen. Das gegenüberliegende untere Ende derThe end of the adapter spindle usually has a standardized square connection - e.g. Provide an 1/2 "connection for the attachment of the respective screwing tool, e.g. from the square recesses for nuts or screw heads, etc. The opposite lower end of the
Antriebsspindel, an welchem die eigentliche Antriebsmaschine, d.h. ein Schrauber, angesetzt werden kann, muss entsprechend den Anschlüssen dieser Antriebsmaschine ausgebildet sein. In der Regel weisen diese Maschinen nussartige Aufnahmen für einen an der Adapterspindel vorgesehenenDrive spindle on which the actual drive machine, i.e. a screwdriver that can be attached must be designed according to the connections of this drive machine. In general, these machines have nut-like receptacles for one provided on the adapter spindle
Sechskantzapfen - beispielsweise der Schlüsselweite 17 mm - auf. Diese Sechskantzapfen sind bei den bisher im Einsatz befindlichen Adapterspindeln direkt am antriebsseitigen Ende der Adapterspindel angeformt . Durch die Schlüsselweite der Aufnahme der Antriebsmaschine ist der Durchmesser des anschließenden Teils der Antriebsspindel vorgegeben, der beispielsweise bei einer Schlüsselweite von 17 mm bei einem Durchmesser von ca. 20 mm liegen muss.Hexagon spigot - for example a wrench size of 17 mm. These hexagon pegs have been used so far adapter spindles located directly on the drive end of the adapter spindle. The wrench size of the drive machine receptacle specifies the diameter of the adjoining part of the drive spindle, which, for example with a wrench size of 17 mm, must be approximately 20 mm in diameter.
Ausgehend von diesem Durchmesser muss dann die drehbare und um das vorgegebene Maß auch seitlich auslenkbare Lagerung der Adapterspindel im zugehörigen Lagergehäuse ausgestaltet werden, d.h. durch den durch die konstruktiven Anschlussmaße der Antriebsmaschine vorgegebenen Durchmesser der Antriebsspindel werden auch die Abmessungen des Lagergehäuses vorgegeben. Zumindest in Einzelfällen - z.B. bei beengten Raumverhältnissen in Vertiefungen der Bodengruppe, in welchem der zusätzliche Anbauteil befestigt werden soll, kann der Durchmesser des Lagergehäuses kritisch sein. Hinzu kommt, dass ja auch Halterungselemente für die an der Bodengruppe zu befestigenden Anbauteile vom Montagerahmen zur Befestigungsstelle vorkragen müssen. Die Anordnung dieser Halterungsteile an vorgegebenen Halterungspunkten über gesonderte Träger etc. erfordert ebenfalls Platz.Based on this diameter, the rotatable and laterally deflectable bearing of the adapter spindle in the associated bearing housing must then be configured, i.e. the dimensions of the bearing housing are also specified by the diameter of the drive spindle specified by the structural connection dimensions of the drive machine. At least in individual cases - e.g. If space is limited in the recesses of the floor assembly in which the additional attachment is to be attached, the diameter of the bearing housing can be critical. In addition, mounting elements for the attachments to be attached to the floor assembly must also protrude from the mounting frame to the attachment point. The arrangement of these mounting parts at predetermined mounting points via separate supports etc. also requires space.
Der Erfindung liegt demgegenüber die Aufgabe zugrunde, die Abmessungen der Lagergehäuse für die hier in Frage stehende Adapterspindel ebenso wie für die Anbauteil-Halterungsele- mente so zu minimieren, dass die geschilderten räumlichen Probleme so weit verringert werden, dass auch an räumlich ungünstigen vertieften Partien der Bodengruppe noch Anbau- teile anschraubbar sind.In contrast, the invention is based on the object of minimizing the dimensions of the bearing housings for the adapter spindle in question here, as well as for the attachment-element elements, in such a way that the spatial problems described are reduced to such an extent that even on spatially unfavorable recessed areas Bottom assembly can still be screwed on.
Ausgehend von einer Adapterspindel-Lageranordnung der eingangs erwähnten Art wird diese Aufgabe erfindungsgemäß dadurch gelöst, dass die Adapterspindel über ihre gesamte Länge einen durch das von der motorischen Antriebsmaschine auf das Montagewerkzeug maximal zu übertragende Moment und die Abmessung der Aufnahme des Montagewerkzeugs vorgegebe- nen geringstmöglichen Durchmesser aufweist, dass das der Aufnahme für das Montagewerkzeug gegenüberliegende Ende der Adapterspindel mit einem der Aufnahme für das Montagewerkzeug entsprechende Aufnahme versehen ist, und dass ein auf die Aufnahme am ontagewerkzeugabgewandten Ende der Adapterspindel drehfest aufsteckbares, passend in das Futter der Antriebsmaschine einsteckbares Adapter-Zwischenstück vorgesehen ist. Die eigentliche Adapterspindel wird also in ihrem Durchmesser - unter Berücksichtigung des zu übertra- genden Moments - ausschließlich von den konstruktiven Abmessungen der Aufnahme für das Montagewerkzeug bestimmt, welches - wie bereits erwähnt - in der Regel ein Vierkant ist, der einen geringeren Querschnitt als der übliche Sechskantzapfen für das Futter der Antriebsmaschine hat. Die Antriebsspindel selbst kann also mit entsprechend verrringertem Durchmesser hergestellt werden, wobei dann allerdings nicht mehr die Möglichkeit besteht, am antriebs- maschinenseitigen Ende den passenden, im Querschnitt sechseckigen Zapfen anzuarbeiten, der an das Futter der An- triebsmaschine passt . Dementsprechend wurde das antriebsma- schinenseitige Ende der Antriebsspindel - entsprechend dem gegenüberliegenden, die Aufnahme für das Montagewerkzeug tragenden Ende - ausgestaltet, d.h. im speziellen Fall mit einem Vierkant versehen. Um dann die Antriebsmaschine an diesem Ende anschließen zu können, wird ein Adapter- Zwischenstück vorgesehen, welches adapterspindelseitig komplementär zur Aufnahme am zugeordneten Ende der Adapterspindel und antriebsmaschinenseitig mit einem entsprechenden, in das Futter der Antriebsmaschine einführbaren An- schlusszapfen versehen ist.Starting from an adapter spindle bearing arrangement of the type mentioned at the outset, this object is achieved according to the invention in that the adapter spindle, over its entire length, specifies a maximum torque to be transmitted from the motor drive machine to the assembly tool and the dimension of the mounting of the assembly tool. NEN has the smallest possible diameter that the end of the adapter spindle opposite the receptacle for the assembly tool is provided with a receptacle corresponding to the receptacle for the assembly tool, and that an adapter which is non-rotatably attachable to the receptacle on the end of the adapter tool and faces the receptacle of the drive machine -Intermediate piece is provided. The diameter of the actual adapter spindle is thus determined - taking into account the torque to be transmitted - exclusively from the structural dimensions of the receptacle for the assembly tool, which - as already mentioned - is generally a square with a smaller cross section than the usual one Hexagon pin for the feed of the drive machine has. The drive spindle itself can therefore be manufactured with a correspondingly reduced diameter, but in this case there is no longer any possibility of working on the suitable end with a hexagonal cross section at the end of the drive machine, which fits the chuck of the drive machine. The end of the drive spindle on the drive machine side was designed accordingly, corresponding to the opposite end, which carries the receptacle for the assembly tool, ie in a special case provided with a square. In order to then be able to connect the drive machine to this end, an adapter intermediate piece is provided, which is provided on the adapter spindle side complementary to the receptacle at the assigned end of the adapter spindle and on the drive machine side with a corresponding connection pin which can be inserted into the chuck of the drive machine.
Erfindungsgemäß ist also sowohl die Aufnahme für das Montagewerkzeug als auch die Aufnahme am Montagewerkzeug abgewandten Ende der Adapterspindel bevorzugt als Vierkantkopf mit genormten Abmessungen ausgebildet, wobei dann das Adapter-Zwischenstück aufnahmeseitig eine den Vierkantkopf an der Adapterspindel komplementär aufnehmende Aussparung und antriebsmaschinenseitig einen im Querschnitt sechseckigen, ins Futter der Antriebsmaschine einsetzbaren Zapfen aufweist . Aufgrund des geringeren Durchmessers der dann im Lagergehäuse zu lagernden Spindel kann auch dieses Lager- gehause in seinen äußeren Abmessungen gegenüber den Lagergehäusen für Antriebsmaschinen in der bisher eingesetzten Form verringert werden.According to the invention, both the receptacle for the assembly tool and the receptacle on the end of the adapter spindle facing away from the assembly tool are preferably designed as a square head with standardized dimensions, in which case the adapter intermediate piece on the receiving side has a recess which accommodates the square head on the adapter spindle and is complementary on the drive machine side has a hexagonal cross section which can be inserted into the chuck of the drive machine. Due to the smaller diameter of the spindle then to be stored in the bearing housing, this bearing housing can also be reduced in its outer dimensions compared to the bearing housings for drive machines in the form used previously.
Eine zweite Maßnahme zur Verringerung des Raumbedarfs für die vom Montagerahmen vortretenden Teile besteht dann darin, dass das die eigentliche Adapterspindel halternde Lagergehäuse zumindest in einem dem Montagerahmen zu hal- ternden Anbauteil zugewandten Bereich eine zylindrische Befestigungsflache aufweist, auf welche die Halterungsele- mente für die Anbauteile angeordnet werden können. Die Halterungselemente sind dann also in unmittelbarer Nähe der Adapterspindel an deren Lagergehäuse befestigbar, so dass sie - abweichend von den bisher gesondert am Montagerahmen montierten Halterungselementen - ebenfalls einen geringeren Raum beanspruchen und es dadurch möglich ist, auch noch vertiefte Bereiche mit geringen freien Durchtrittsflächen in der Unterseite der mit den Anbauteilen zu bestückenden Bodengruppe zu erreichen.A second measure for reducing the space requirement for the parts protruding from the mounting frame then consists in that the bearing housing holding the actual adapter spindle has a cylindrical fastening surface, at least in an area facing the mounting frame, on which the mounting elements for the mounting parts are attached can be arranged. The mounting elements can then be fastened to the bearing housing in the immediate vicinity of the adapter spindle, so that - in contrast to the mounting elements previously mounted separately on the mounting frame - they also take up less space and it is therefore possible to also create recessed areas with small free passage areas in the To reach the bottom of the floor assembly to be fitted with the attachments.
Die Erfindung ist in der folgenden Beschreibung eines Aus- führungsbeispiels in Verbindung mit der Zeichnung näher erläutert, und zwar zeigt:The invention is explained in more detail in the following description of an exemplary embodiment in conjunction with the drawing, which shows:
Fig. 1 einen Längsmittelschnitt durch eine erfindungsgemäße Adapterspindel -1 shows a longitudinal central section through an adapter spindle according to the invention -
Lageranordnung; undBearing assembly; and
Fig. 2 eine der Adapterspindel-Lageranordnung gemäß Figur 1 ähnliche Lageranordnung in ihrer Montagestellung an einem Abschnitt eines Montagerahmens mit auf dem Lagergehäuse angeordneter rohrför- miger Halterung für ein Halterungselement für das zu montierende Anbauteil .2 shows a bearing arrangement similar to the adapter spindle bearing arrangement according to FIG. 1 in its assembly position on a section of an assembly frame with tubular conveying means arranged on the bearing housing. Miger bracket for a bracket element for the attachment to be assembled.
Die in Figur 1 gezeigte und in ihrer Gesamtheit mit 10 bezeichnete erfindungsgemäße Adapterspindel -Lageranordnung umfasst die eigentliche Adapterspindel 12, welche von einer langgestreckten Welle - z.B. aus einem blankgezogenen Rund- stahl durchgehend gleichen Durchmessers aus einer hochfesten Stahllegierung, wie z.B. 42CrMo5 - gebildet wird. Von den Stirnflächen der Enden der Adapterspindel 12 tritt jeweils ein Vierkantkopf 14 bzw. 16 integral vor, von denen der in der Zeichnung obere Vierkantkopf 14 zur drehfesten Befestigung eines Montagewerkzeugs, beispielsweise der in Figur 2 mit einer eingesetzten Schraube 18 mit Sechskant- köpf dargestellten Nuss 20 dienen möge. Auf den Vierkantkopf 16 am unteren Ende der Spindel 12 ist ein Adapter- Zwischenstück 22 befestigt, von dessen spindelabgewandter Endfläche der zum Einstecken in das Futter eines üblichen, motorisch angetriebenen Schraubers bestimmte und dement- sprechend geformte und bemessene, im Durchmessser sechseckige Zapfen 24 vorspringt .The adapter spindle bearing arrangement according to the invention shown in FIG. 1 and designated in its entirety by 10 comprises the actual adapter spindle 12, which is supported by an elongated shaft - e.g. from a bright drawn round steel with the same diameter throughout from a high-strength steel alloy, e.g. 42CrMo5 - is formed. A square head 14 or 16 emerges integrally from the end faces of the ends of the adapter spindle 12, of which the square head 14 shown in the drawing for the rotationally fixed fastening of an assembly tool, for example the nut shown in FIG. 2 with an inserted screw 18 with a hexagon head 20 may serve. On the square head 16 at the lower end of the spindle 12, an adapter intermediate piece 22 is fastened, from the end surface of which faces away from the spindle projects the pin 24, which is designed and dimensioned accordingly, for insertion into the chuck of a conventional, motor-driven screwdriver, and has a diameter of hexagonal.
Die Antriebsspindel 12 ist in einem Lagergehäuse 26 drehbar und um einen vorgegebenen Hub längsverschieblich und außer- dem noch - zum Ausgleich von Ungenauigkeiten in der Lage der Montagepunkte - um ein vorgegebenes (geringes) Maß querverschieblich gelagert. Über den größten Teil seiner Längenerstreckung hat das Lagergehäuse 26 eine zylindrische, d.h. im Durchmesser kreisförmig begrenzte äußere Form. Lediglich der untere Endbereich des Lagergehäuses ist im gezeigten Fall als in der Draufsicht quadratisch begrenzter, gegenüber dem Durchmesser des zylindrischen Teils vergrößerter Befestigungsflansch 28 ausgebildet. Die drehbare und längsverschiebliche Lagerung der Spindel 18 inner- halb des Gehäuses wird von zwei voneinander beabstandeten Lagerbüchsen 30, 32 übernommen, die in Aufnahmen in einer Abstandshülse 34 eingesetzt sind, welche ihrerseits stirnseitig über Längskugellager 36, 38 an einem radial einspringenden Bund des Lagergehäuses 26 bzw. einem am gegen- überliegenden Ende in eine Gewindebohrung im Lagergehäuse eingeschraubten Lagerdeckel 40 abgestützt sind. Da die Abstandshülse 34 gegenüber dem lichten Innendurchmesser des Lagergehäuses 26 einen deutlich verringerten Außendurchmesser aufweist, ist im Rahmen des Spiels zwischen der Ab- standshülse und der Innenwandung des Lagergehäuses das vorstehend erwähnte Querspiel zum Ausgleich von Ungenauigkei- ten der Lage der Montagepunkte gegeben. Das Maß der Längs- verschieblichkeit der Antriebsspindel 12 im Lagergehäuse wird durch Anschlagringe 42, 44 vorgegeben, die auf gegen- überliegenden Seiten des Lagergehäuses 26 auf der Spindel 12 aufschiebbar und durch Madenschrauben in der vorgegebenen Befestigungsstellung festklemmbar sind. Um über eine reine kraftschlüssige Klemmung hinaus eine formschlüssige Festlegung der Anschlagringe 44 auf der Spindel 12 zu er- halten, sind in den vorgegebenen Befestigungsstellungen für die Anschlagringe niedrige Ansenkungen im Umfang der Spindel 12 vorgesehen, in welche jeweils das zugespitzte Vorderende der Madenschrauben eingeschraubt wird.The drive spindle 12 is rotatable in a bearing housing 26 and is longitudinally displaceable by a predetermined stroke and, in addition, to compensate for inaccuracies in the position of the mounting points, is displaceably displaceable by a predetermined (small) amount. Over most of its length, the bearing housing 26 has a cylindrical, that is to say circularly limited outer shape in diameter. In the case shown, only the lower end region of the bearing housing is designed as a mounting flange 28 which is square in plan view and enlarged compared to the diameter of the cylindrical part. The rotatable and longitudinally displaceable mounting of the spindle 18 within the housing is carried out by two spaced apart Bearing bushes 30, 32 are taken over, which are inserted into receptacles in a spacer sleeve 34, which in turn are supported on the end face via longitudinal ball bearings 36, 38 on a radially projecting collar of the bearing housing 26 or a bearing cover 40 screwed into a threaded bore in the bearing housing at the opposite end , Since the spacer sleeve 34 has a significantly reduced outer diameter compared to the clear inner diameter of the bearing housing 26, the above-mentioned transverse play to compensate for inaccuracies in the position of the mounting points is given within the scope of the play between the spacer sleeve and the inner wall of the bearing housing. The measure of the longitudinal displaceability of the drive spindle 12 in the bearing housing is predetermined by stop rings 42, 44 which can be pushed onto the spindle 12 on opposite sides of the bearing housing 26 and can be clamped in the predetermined fastening position by grub screws. In order to obtain a positive locking of the stop rings 44 on the spindle 12 in addition to a purely frictional clamping, low countersinks in the circumference of the spindle 12 are provided in the predetermined fastening positions for the stop rings, into each of which the tapered front end of the grub screws is screwed.
In Figur 2 ist die in Verbindung mit Figur 1 beschriebene Adapterspindel-Lageranordnung 10 auf einem an dem im übrigen nicht dargestellten Montagerahmen angeschweißten Montageplatte 46 befestigt gezeigt, wobei zusätzlich veranschaulicht ist, dass der zylindrische äußere Abschnit des Lager- gehäuses 26 als Halterung für einen von der Oberseite aus aufgesteckten hohlzylindrischen, d.h. rohrförmigen Träger 48 dienen kann, der von der Adapterspindel 12 durchsetzt wird. Auf einem, über einen Teilabschnitt verlängerten Abschnitt 50 des rohrförmigen Trägers 48 ist eine Halte- rungsplatte 52 aufgeschweißt, welche ein Halterungselement 54 in Form eines Passbolzens trägt, auf dem das - mittels der Schraube 18 an der Unterseite einer Baugruppe - zu be- festigende (nicht gezeigte) Anbauteil in der bestimmungsgemäß ausgerichteten Montagestellung gehalten wird. Dabei ist zu erwähnen, dass - zumindest größere - Anbauteile in der Regel mehrfach verschraubt werden, so dass also für ihre Befestigung eine entsprechende Anzahl von Adapterspindel-Lageranordnungen und Halterungselemente am zugehörigen Montagerahmen vorzusehen sind. In FIG. 2, the adapter spindle bearing arrangement 10 described in connection with FIG. 1 is shown attached to a mounting plate 46 welded to the mounting frame, which is otherwise not shown, wherein it is additionally illustrated that the cylindrical outer section of the bearing housing 26 serves as a holder for one of the top made of attached hollow cylindrical, ie tubular carrier 48, which is penetrated by the adapter spindle 12. A holding plate 52 is welded onto a section 50 of the tubular carrier 48, which section is extended over a partial section and which carries a holding element 54 in the form of a fitting bolt, on which the - by means of the screw 18 on the underside of an assembly - is to be fastened. fixing (not shown) attachment is held in the properly aligned mounting position. It should be mentioned that - at least larger - add-on parts are usually screwed several times, so that a corresponding number of adapter spindle bearing arrangements and mounting elements must be provided on the associated mounting frame for their attachment.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. An Montagerahmen zur Halterung von Bauteilen, wie Hin- terachsen, Motor- und Getriebe-Baugruppen, Tanks und Abgasanlagen von Kraftfahrzeugen in einzelnen oder aufeinander folgenden Montagestationen in der Großserienfertigung von Kraftfahrzeugen anbringbare Lageranordnung (10) für Antriebsspindeln (12), die drehbar und in vorgegebenem Maße in einer rechtwinklig zur Spindel -Drehachse verschieblich in einem am Montagerahmen befestigbaren Lagergehäuse (26) gehaltert sind und an ihrem dem zu halternden Anbauteil zugewandten Ende eine Aufnahme für ein Montagewerkzeug (20), wie Schraubendreher, Schraubenschlüssel, Mutternauf- nähme, Stecknuss etc. aufweisen und an ihrem gegenüberliegenden Ende so ausgebildet sind, dass dieses in ein von einer motorischen Antriebsmaschine drehantreibbares Futter drehfest einführbar ist, d a d u r c h g e k e n n z e i c h n e t , dass die Adapterspindel (12) über ihre gesamte Länge einen durch das von der motorischen Antriebsmaschine auf das Montagewerkzeug (20) maximal zu übertragende Moment und die Abmessungen für die Aufnahme des Montagewerkzeugs (20 ) vorgegebenen geringstmöglichen Durchmesser aufweist, dass das der Aufnahme für das Montagewerkzeug (20) gegenüberliegende Ende der Adapterspindel (12) mit einer der Aufnahme für das Montagewerkzeug (22) entsprechenden Aufnahme versehen ist, und dass ein auf die Aufnahme am montagewerkzeugabgewand- ten Ende der Adapterspindel drehfest aufsteckbares passend in das Futter der Antriebsmaschine einsteckbares Adapter- Zwischenstück vorgesehen ist .1. A mounting arrangement (10) for drive spindles (12) which can be rotated on mounting frames for holding components, such as rear axles, engine and transmission assemblies, tanks and exhaust systems of motor vehicles in individual or successive assembly stations in the large-scale production of motor vehicles and are held to a predetermined extent in a bearing housing (26) which can be fastened to the mounting frame and which has a receptacle for an assembly tool (20), such as a screwdriver, wrench, nut receptacle, in a bearing housing (26) which can be fastened to the mounting frame. Have socket etc. and are formed at their opposite end so that it can be rotatably inserted into a chuck that can be driven by a motor drive machine, characterized in that the adapter spindle (12) has a length over its entire length due to the movement of the motor drive machine to the mon day tool (20) maximum torque to be transmitted and the dimensions for the mounting of the mounting tool (20) predetermined minimum possible diameter that the end of the adapter spindle (12) opposite the mounting for the mounting tool (20) with one of the receptacles for the mounting tool (22 ) is provided in the corresponding receptacle, and that an adapter intermediate piece is provided that is non-rotatably attachable to the receptacle on the end of the adapter spindle facing away from the assembly tool.
2. Adapterspindel-Lageranordnung nach Anspruch 1, dadurch gekennzeichnet, dass die Aufnahme für das Montagewerkzeug2. Adapter spindle bearing arrangement according to claim 1, characterized in that the receptacle for the assembly tool
(20) als Vierkantkopf (14) mit genormten Abmessungen ausgebildet ist . (20) is designed as a square head (14) with standardized dimensions.
3. Adapterspindel -Lageranordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Aufnahme am montagewerk- zeugabgewandten Ende der Adapterspindel (12) als Vierkant - köpf (16) mit genormten Abmessungen ausgebildet ist.3. Adapter spindle bearing arrangement according to claim 1 or 2, characterized in that the receptacle on the end of the adapter spindle (12) facing away from the assembly tool is designed as a square head (16) with standardized dimensions.
4. Adapterspindel-Lageranordnung nach Anspruch 3, dadurch gekennzeichnet, dass das Adapter-Zwischenstück (22) aufnahmeseitig eine den Vierkantkopf (16) an der Adapterspindel (12) komplementär aufnehmende Aussparung und antriebs- maschinenseitig einen im Querschnitt sechseckigen, ins Futter der Antriebsmaschine einsetzbaren Zapfen (24) aufweist .4. Adapter spindle bearing arrangement according to claim 3, characterized in that the adapter intermediate piece (22) on the receiving side has a square head (16) on the adapter spindle (12) complementary receiving recess and on the drive machine side a hexagonal in cross section, can be used in the chuck of the drive machine Has pin (24).
5. Adapterspindel-Lageranordnung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das die eigentliche5. adapter spindle bearing arrangement according to one of claims 1 to 4, characterized in that the actual
Adapterspindel (12) halternde Lagergehäuse (26) zumindest in einem dem im Montagerahmen zu halternden Anbauteil zugewandten Bereich eine zylindrische äußere Befestigungsfläche aufweist . Bearing housing (26) holding adapter spindle (12) has a cylindrical outer fastening surface at least in an area facing the attachment part to be held in the mounting frame.
PCT/EP2001/011683 2000-10-13 2001-10-10 Adapter spindle-bearing arrangement for an assembly frame WO2002030614A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20017623U DE20017623U1 (en) 2000-10-13 2000-10-13 Adapter spindle bearing arrangement for mounting frames
DE20017623.4 2000-10-13

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WO2002030614A1 true WO2002030614A1 (en) 2002-04-18

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ID=7947642

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WO (1) WO2002030614A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5014405A (en) * 1988-08-22 1991-05-14 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Jig pallet for an automatic assembly device
EP0593338A1 (en) * 1992-10-13 1994-04-20 Renault Automation Device for making an assembly of two pieces in a screwing workstation
DE4443497A1 (en) * 1994-12-07 1996-06-13 Opel Adam Ag Threaded spindle holder for use in car assembly lines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3544323A1 (en) * 1985-12-14 1987-06-19 Bosch Gmbh Robert SCREWDRIVER WITH A MEASURING DEVICE FOR DETERMINING TRANSLATORY MOVEMENT

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5014405A (en) * 1988-08-22 1991-05-14 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Jig pallet for an automatic assembly device
EP0593338A1 (en) * 1992-10-13 1994-04-20 Renault Automation Device for making an assembly of two pieces in a screwing workstation
DE4443497A1 (en) * 1994-12-07 1996-06-13 Opel Adam Ag Threaded spindle holder for use in car assembly lines

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