EP3319754A1 - Système d'entraînement pour un pont pivotant - Google Patents

Système d'entraînement pour un pont pivotant

Info

Publication number
EP3319754A1
EP3319754A1 EP16730353.6A EP16730353A EP3319754A1 EP 3319754 A1 EP3319754 A1 EP 3319754A1 EP 16730353 A EP16730353 A EP 16730353A EP 3319754 A1 EP3319754 A1 EP 3319754A1
Authority
EP
European Patent Office
Prior art keywords
drive
drive arrangement
region
clamping device
fixed housing
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.)
Withdrawn
Application number
EP16730353.6A
Other languages
German (de)
English (en)
Inventor
Bernd KEIBACH
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.)
Franz Kessler GmbH
Original Assignee
Franz Kessler 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 Franz Kessler GmbH filed Critical Franz Kessler GmbH
Publication of EP3319754A1 publication Critical patent/EP3319754A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
    • B23Q1/50—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism
    • B23Q1/54—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only
    • B23Q1/5406—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only a single rotating pair followed perpendicularly by a single rotating pair
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
    • B23Q16/02—Indexing equipment
    • B23Q16/08—Indexing equipment having means for clamping the relatively movable parts together in the indexed position
    • B23Q16/10—Rotary indexing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/10—Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means

Definitions

  • the invention relates to a drive arrangement for swing bridge, wherein the drive arrangement comprises a pivoting device, with a drive force receiving device, which is adapted to cooperate with a drive unit for receiving a rotational drive force; and a clutch device configured to couple the drive force receiving device and a pivot bridge unit together for rotation about a pivot axis, the drive assembly further comprising at least one bearing device configured to rotatably support the pivot device with respect to a fixed housing portion of the drive assembly ; and wherein the drive arrangement further comprises at least one clamping device which is designed to selectively fix the pivoting device in different rotational positions, the fixed housing section of the drive arrangement having an inner region axially facing the pivoting bridge unit and one of the pivoting device
  • Swing bridge unit axially facing away from the outside.
  • Such arrangements are known from the prior art and shown for example in EP 2 113 334 AI. In this case, such arrangements are typically used in machine tool construction, in particular for positioning and / or guidance of workpieces relative to a tool.
  • clamping device often comprises
  • EP 2 113 334 A1 shows a driven via a drive ring pivot bridge, which is mounted on a journal in a housing wall. Further, a clamping device is provided which engages the drive ring in order to fix the swing bridge in different rotational positions can. However, the clamping device is difficult to access, which also disassembly of the
  • clamping device Due to its complex construction, the clamping device extends from an outside area to an inside area of a housing, to finally generate clamping forces at an inside position within the housing. This results in a large and branched power flow, which is detrimental to the rigidity of the overall arrangement.
  • Swing bridge in which a drive motor between a centrally arranged in a housing clamping device and an axially inner bearing device is arranged.
  • the resulting power flow between the clamping device, the bearing device and the drive motor is therefore again relatively spacious.
  • the inventors have recognized that an improved maintenance friendliness can be achieved by positioning the clamping device in the outer region of the stationary housing region.
  • the clamping device can be serviced from outside the machine tool, ie without a maintenance worker having to intervene directly in the processing space of a machine tool.
  • it can thereby be made possible that fewer or even no components of a corresponding machine tool can be detected. must be in order to access the clamping device can. This applies in particular to the swivel bridge unit or the drive unit.
  • the inventors have further recognized that it is advantageous for ensuring a high rigidity, when the bearing device is also arranged in the outer region of the fixed housing, ie near the clamping device. In contrast to the known solutions discussed above, this makes it possible to achieve the shortest possible and direct flow of force within the drive arrangement as well as a reduction of disadvantageous for the rigidity lever arms.
  • the clamping device may comprise, for example, a displaceable component which can cooperate with an active surface to generate a clamping force.
  • the displaceable component can be brought in particular under the action of a compressive force with the active surface in abutment.
  • a gap is first present in a clamping force-free state, which gap must be bridged in order to generate clamping forces.
  • the recording according to the invention of a rotational drive force by means of the drive force receiving device from a (possibly external) drive unit is to be understood in particular as coupling into or forwarding of a rotational drive force to the pivoting device. This allows the
  • Coupling device then be pivoted together with a swivel bridge unit coupled thereto.
  • the drive unit directly forms a part of the drive assembly according to the invention.
  • the drive unit can be designed, for example, as an electric motor which drives a toothed wheel which engages in a drive force receiving device in the form of a toothed rim.
  • the drive unit may be formed as a stator of an electric motor, which drives a drive force receiving device in the form of a preferably inner rotor.
  • the driving force absorption Me also interact directly with the generation of the driving force with the drive unit.
  • the drive force receiving device is designed as an interface for fastening a rotating component of the drive unit.
  • the driving force receiving device may for example be formed as a mounting flange, which is arranged on the coupling device of the pivoting device or is supported on this.
  • the coupling device can be designed as a hollow shaft which can receive the bearing journal of a swivel bridge unit in a central bore.
  • the coupling of the drive force receiving device and the swivel bridge unit is preferably rotationally fixed.
  • Pivoting bridge unit and the driving force receiving device to be attached to the coupling device, for example by a screw.
  • the bearing device of the drive arrangement can be designed according to the invention as a rolling bearing and generally form a radial bearing or an axial-radial bearing.
  • the bearing device is arranged between the coupling device and a fixed housing portion of the drive arrangement and allows a rotatable mounting of the coupling device in this housing area.
  • the drive arrangement comprises only a single such bearing device, in particular a single arranged on the coupling device axial-radial roller bearing.
  • the selective fixing of the pivoting device according to the invention in various rotary stalls generally means fixing in any or at least selected rotational positions within a movement range or at least individual movement range segments of the pivoting device.
  • the fixing can be effected via the above-described interaction of one or more deflectable or displaceable components of the clamping device and an active surface, wherein the active surface can be formed in particular as part of the coupling device or as part of a rotatably coupled to the coupling device clamping member.
  • the term clamping device is understood to mean at least one corresponding active surface and / or one unit of active surface and deflectable component, whereby additional components provided for clamping force generation, such as lines for the supply and removal of a pressure medium, can also be arranged outside the outer region of the stationary housing region.
  • the clamping device comprises a hydraulic and / or pneumatic working chamber, which is designed with introduction of a pressure medium to apply a displacement force to the displaceable component, wherein the working chamber is arranged in the outer region.
  • the deflectable component of the clamping device can be designed, for example, in the form of a single piston or a membrane with a solid-body joint.
  • a development of the invention provides that the outer region of the fixed housing region occupies between one tenth and two thirds of the total axial width of the fixed housing region in the region of the pivoting device.
  • the outer area occupies up to a ninth, an eighth, a seventh, a sixth, a fifth, a quarter, a third or half of the corresponding overall axial width.
  • the inner region of the stationary housing region in each case occupies the remaining portion of the total width of the stationary housing region.
  • the total width can therefore be divided accordingly between the outer area and the inner area.
  • the total width of the fixed housing region can be defined by a cross-sectional width or an axial extension in an axis-containing section.
  • the cross-sectional width in the area of the pivoting device is provided as the relevant dimensioning area, ie the housing areas arranged near the pivoting device or adjacent to the pivoting device.
  • this area can be essentially limited to the axial overlapping area of the pivoting device and of the stationary housing area.
  • the bearing journal of a pivotal bridge unit receiving bore is selected as a reference.
  • a mounted Swing bridge assembly can also be the design directly with respect to the bearing pin of the swivel bridge unit.
  • the outer region of the fixed housing portion may extend over a range between one-tenth and two-thirds of the total axial length of the coupling device or alternatively the bore or trunnion, and in particular up to a ninth, an eighth, a seventh, a sixth Occupy one fifth, one quarter, one third or half of the corresponding total axial length.
  • the inner region can preferably again occupy the respective remaining proportion of the corresponding axial overall length.
  • the erfindungsmäße axial distance between the bearing device and the clamping device may be defined with respect to said reference, ie with respect to the total axial width of the fixed housing portion in the region of the pivoting device or the total axial length of the coupling device, the bore or a journal , It can be inventively provided that the axial distance between one-third and one-tenth of the amount of the corresponding reference is.
  • the axial distance can be defined according to the invention with respect to the axial extent of the outer region and occupy a proportion between 0% (which corresponds to a same axial position of bearing device and clamping device) and 100% of this axial extent. In particular, the proportion may be up to 20%, 40%, 60% or 80% of the axial extent.
  • the drive force receiving device is arranged at least partially in the inner region of the stationary housing region.
  • Driving force receiving device and the bearing and clamping device can be arranged in different areas within the drive assembly, wherein the driving force receiving device of the pivotal bridge unit facing axially and positioned closer to a processing space of a corresponding machine tool.
  • the bearing device is arranged axially further inwardly, that is to say closer to the inner region of the stationary housing region, than the clamping device.
  • the bearing unit can axially between the axially inner drive force receiving device and the axially outside be arranged clamping device.
  • the clamping device can be arranged axially between the axially inner drive force receiving device and the axially outer bearing device.
  • the driving force receiving device is designed as a rotor of an electric motor, which is preferably designed as a Torquemotor and / or internal rotor.
  • the invention may also be provided as an external rotor trained electric motor, wherein the electric motor is again preferably designed as a torque motor.
  • an electric motor By using an electric motor, the rotational position of a pivoting bridge unit coupled to the drive assembly can be set extremely precisely.
  • the use of a torque motor further ensures that sufficiently large torques can be provided in a compact design, so that even heavy workpieces can be positioned and guided relative to a tool.
  • the size can be further reduced by forming the electric motor as an internal rotor.
  • the stationary housing region encloses all components which do not rotate with the other components of the drive arrangement and in particular with the pivoting device about the pivot axis.
  • the fixed housing portion may be integrally formed, for example as a corresponding cross-sectional area of a machine frame.
  • the stationary housing region comprises at least one frame element and at least one cover assembly detachably mounted thereto.
  • the frame member may extend over more than half the axial extent of the drive assembly and in particular the coupling device.
  • the frame member extends over the substantially entire axial extent of the drive assembly and optionally also beyond.
  • the lid assembly may include a substantially planar lid member and be configured to be detached from and remounted from the frame member during maintenance, for example.
  • the cover assembly is arranged on an outer surface of the frame element which faces away axially from the swivel bridge unit, and at least the clamping device sections opposite, in particular axially opposite.
  • This allows the clamping device to be readily accessible with appropriate disassembly of the lid assembly.
  • the clamping device or individual components thereof are at least partially disposed on the cover assembly and form with the cover assembly a correspondingly detachable and mountable to the drive assembly module.
  • the cover assembly has a larger diameter or a larger radial extent than the clamping device.
  • an opening in the housing of the drive assembly and in particular in the frame member can be provided, through which the clamping device can be removed completely and without additional disassembly steps.
  • the fixed housing portion and in particular the frame member may provide a plurality of axial and / or radial active surfaces adapted to guide, support or support the remaining components of the drive assembly.
  • radial active surface is to be understood as meaning a surface section which can essentially absorb forces in a radial direction and provides a corresponding abutment surface, and the same applies with respect to the axial active surfaces which absorb substantially axial forces.
  • a development of the invention provides that at least the bearing device and the clamping device are supported on the active surfaces of the same frame element.
  • this frame member can also support a drive unit by means of a corresponding effective surface, in particular the stator of an electric motor.
  • the fixed housing portion has a radially inner region, in particular formed by a radially inwardly projecting diameter stage, and the bearing means is disposed in the inner region.
  • the fixed housing area in the region of the drive arrangement can be have radially further outward as well as radially further inboard areas. These can limit a common space in which the drive assembly is received.
  • the radially inner region defines an axial and / or radial active surface, against which the bearing device rests or at least is supported.
  • the radially inner region forms at least one axial active surface which cooperates with the clamping device and / or which is designed to cooperate with the components of a drive unit.
  • the radially inner region can provide both a support of the bearing device, as well as of the components of the clamping device or a drive unit. This allows a particularly compact design as well as a short and direct flow of force within the
  • the clamping device is designed to generate clamping forces in the radial direction.
  • the clamping device is designed to generate clamping forces in the axial direction.
  • the clamping device can thus be designed as an axial or radial clamping device, wherein the respective directions designate in a known manner a pressure force generating direction or a feed movement of the clamping device.
  • the Klemmkrafterzeugung can generally be done with the aid of a hydraulic or pneumatic pressure medium.
  • clamping device generates clamping forces in both the radial and axial directions.
  • the clamping device may also be designed such that the clamping forces generated in a certain direction (radially or axially) outweigh the respective other direction.
  • clamping forces can be understood to mean a compressive force generated by means of the clamping device, which is applied to an active surface, for example with the aid of a deflectable component.
  • the active surface may preferably be formed as part of the pivoting device, in particular the coupling device. In this way, rotation-inhibiting frictional forces can be generated at or within the effective surface.
  • the clamping forces cause the structure of a rotationally inhibiting positive connection.
  • the bearing device comprises a rotation measuring system.
  • the rotation measuring system can in particular be designed to allow conclusions to be drawn about a rotational or angular position of the pivoting device and in particular of a pivoting bridge unit coupled to the pivoting device.
  • the bearing device according to the invention is arranged in the outer region of the fixed housing portion, it is thus ensured that the rotation measuring system is also arranged in a generally easily accessible position. Thus, the ease of maintenance is also improved with regard to the rotation measuring system of the drive assembly. This applies in particular to known solutions in which the rotation measuring system is arranged in a normally difficult to access torque motor.
  • a rotation measuring system can also be arranged on an axially outer end of the pivoting device and in particular on the coupling device.
  • the invention further relates to a machine tool having a drive arrangement according to the invention according to one of the aspects discussed above.
  • the invention relates to a swivel bridge assembly comprising a at least one side received in an inventive drive assembly pivot bridge unit, in particular a swivel bridge unit having a zusharm ⁇ handy rotary table axis.
  • FIG. 1 shows an overall view of a swivel bridge unit accommodated on both sides in drive arrangements according to the invention
  • FIG. FIG. 2 shows an axis-containing sectional view of a drive arrangement according to the invention according to a first exemplary embodiment of the invention
  • FIG. and FIG. FIG. 3 shows an axis-containing sectional view of a drive arrangement according to the invention in accordance with a second exemplary embodiment of the invention.
  • FIG. FIG. 1 shows an example of a swivel bridge assembly with two drive arrangements 10 according to the invention.
  • the swivel bridge unit 12 comprises a swivel bridge 14 extending horizontally between the drive arrangements 10 and a rotary table 16 arranged centrally on the swivel bridge 14
  • drive units 10 are respectively arranged in the drive assemblies, by means of which the
  • Pivoting bridge unit 12 around a in FIG. 1 horizontally extending pivot axis A is pivotable.
  • the swivel bridge unit 12 further comprises a non-separate illustrated and recorded in the pivot bridge 14 drive unit to rotate the rotary table 16 about a vertical axis of rotation B.
  • a rotation about the axes A and B a clamped on the rotary table 16 workpiece relative to a in FIG. 1 not shown tool a machine tool can be positioned.
  • the in FIG. 1 visible components of the pivoting bridge unit 12 extend into a processing space R of a machine tool not shown in detail.
  • the drive assemblies 10 are further formed as separate drive blocks, which are fastened to a machine frame of a machine tool. This can be done for example by placing on an outer mounting surface of a machine frame and screwing in a lower Verschraubungsbe- rich 19 of the drive assemblies 10.
  • the drive units 10 may form an integral part of the machine frame, wherein the fixed housing portion of the drive assembly may be formed by adjacent portions of the machine frame.
  • FIG. 1 also shows that the uncut drive assemblies 10 each comprise a fixed housing portion 36. Further is in the drive assemblies 10 are each a pivot pin of the pivot bridge 14 are pivotally received in the manner described below.
  • the fixed housing portions 36 of the drive assemblies 10 each have an inner region 20 axially facing the swivel bridge unit 12, that is to say a region close to or adjacent to the processing space R of the machine tool (not shown).
  • the fixed housing portions 36 on an axially remote from the pivotal bridge unit 12 outer region 22. This lies opposite the processing space R, so to speak, and is, in other words, arranged outside or not adjacent to it.
  • FIG. 2 shows a drive arrangement 10 according to the invention according to a first exemplary embodiment of the invention.
  • the drive assembly 10 in FIG. 2 according to the in FIG. 1 right drive assembly 10 aligned.
  • the pivoting device 26 comprises a coupling device 28 designed as a hollow shaft in the case shown, which also defines the central bore 24 and which is formed rotationally symmetrically about the pivot axis A.
  • the coupling device 28 is further rotatably coupled in a known manner with the bearing pin of a pivoting bridge unit 12, not shown, or a corresponding interface portion of a pivoting bridge unit 12. This can be done for example via screws or conventional shaft-hub connections.
  • the pivoting device 26 comprises a driving force receiving device 30, which is also coupled in a rotationally fixed manner to the coupling device 28.
  • this is designed as an internal rotor of a torque motor 31.
  • the torque motor 31 further comprises a stator forming a drive unit 32 received in the drive assembly 10. The torque motor 31 is thus formed in the present case as an internal rotor.
  • the drive force receiving device or the rotor 30 is screwed to a flange portion 33 of the coupling device 28, wherein the details of this screw connection in FIG. 2 are not shown separately. It is the Flange portion 33 formed by an outer diameter stage of the coupling device 28.
  • the pivoting device 26 is also rotatably supported by a bearing device 34 in a fixed housing portion 36 of the drive assembly 10.
  • the bearing device 34 is formed in the case shown as an axial-radial roller bearing and is located on an outer peripheral surface of the coupling device 28 and a radially inwardly projecting diameter step 37 of the fixed housing portion 36 at.
  • a rotational force generated by means of the drive unit 32 can thus be absorbed by the pivoting device 26 via the drive force receiving device 30 and transmitted to a pivoting bridge unit 12 by means of the coupling device 28.
  • a clamping device 38 is also formed in a generally known manner as an axial clamping device and comprises two fixed components 40 which receive a deflectable component 42. These components 40, 42 limit in a known manner a working chamber into which a pressure medium for displacing the displaceable component 42 can be introduced.
  • the displaceable component 42 is then shown in FIG. 2 axially displaced to the left, ie in the direction of a pivotal bridge unit 12. In this case, it comes with a rotatably coupled to the coupling device 28 clamping disk element 44 in abutment.
  • the abutment region of the clamping disk element 44 forms an active surface, on which under the introduction of compressive forces by means of the deflectable component 42 rotation-inhibiting frictional forces are generated.
  • the clamping device 38 is shown in a tightened and clamping force generating state.
  • the fixed housing portion 36 of the drive assembly 10 includes in FIG. 2, a central frame element 46 and an axially inner and axially outer cover assembly 48, 50.
  • the frame member 46 has a plurality of radial active surfaces 52, on which the stator of the torque motor 31 and the drive unit 32, a radially outer ring 35 of the bearing device 34th and the radially outer stationary component 40 of the clamping device 38 abut against rotation.
  • the frame element 46 further has a radially inwardly projecting diameter step 37, which has a radial active surface 52 and an axial active surface 54 for supporting the bearing device 34.
  • the diameter stage 37 also defines an axial outwardly facing axial active surface 39 against which the clamping disk element 44 of the clamping device 38 abuts.
  • the diameter step 37 forms an axially inner axial active surface 41, which serves as a stop surface for the drive unit 32.
  • the fixed housing portion 36 includes one of the housing shown in FIG. 2 pivoting unit 12, not shown, axially facing inner region 20 and an axially remote from the pivot bridge unit outer region 22. These regions are in the embodiment of FIG. 2 each bounded by the lid assemblies 48, 50 and the frame member 46.
  • the cover assemblies 48, 50 abut respectively on outer surfaces 54 of the frame member 46 and are screwed in this area with the frame member 46 (not shown separately in FIG. In the case of the outer cover assembly 50, the abutment surface 54 is formed by an axially outer end surface 54 of the frame element 46.
  • the frame member 46 further has a in FIG. 2 not shown screwed portion 19 of the drive assembly 10 in order to fasten the drive assembly 10 to the machine frame of a machine tool can (see FIG. 1).
  • both the bearing device 34 and the clamping device 38 in the outer region 22 of the fixed housing portion 36 is arranged.
  • the drive unit 32 is arranged near an axially inner region of the drive arrangement 10 and thus in the inner region 20 of the stationary housing arrangement 36.
  • the fixed housing portion 36 extends in the region of the pivoting device 26 with an overall axial width b along the pivot axis A, wherein in the case shown no exact axial overlap of the housing portion 36 and pivoting device 26 is used.
  • the axial outer region 22 encompassing the bearing device 34 and the clamping device 38 assumes a proportion a of the total axial width b of the stationary housing region 36.
  • the proportion a of the outer region 22 at the axial total width b is one third.
  • the proportion i of the axial inner region 20 at the axial total width b is two-thirds.
  • the drive unit 32 and also the drive force receiving device 30 in the form of the inner rotor are arranged completely within the axial inner region 20.
  • the axial distance d between the bearing device 34 and the clamping device 38 is dimensioned comparatively small.
  • an axially outer end of a rolling body region of the bearing device 34 is turned off on the axial distance between the active surface of the clamping disk element 44.
  • this distance d is one sixth of the total axial width b of the fixed housing region 36 and half of the axial extent a of the outer region 22.
  • Clamping device 38 takes place over a comparatively short axial distance d and the axial lever arm d of the bearing or clamping forces relative to the respective other component of bearing device 34 and clamping device 38 correspondingly low fails.
  • FIG. 2 shows a rotational measurement system 60 arranged at an axially outer end of the coupling device 28, which generates a signal with respect to a current angular position of the pivoting device 26.
  • the rotation measurement system 60 may also be generally disposed on or supported by the outer cover assembly 50. In the case shown, it is held on a stepped axial end of the coupling device 28 and is pushed onto a corresponding diameter stage.
  • a rotation measuring system 60 integrated into the bearing device 34 may also be provided, wherein in the present case a scanning head 34a integrated in the bearing is shown.
  • a scanning head 34a integrated in the bearing is shown.
  • the coupling device 28 and / or the cover assembly 50 can be produced with lower costs, resulting in a corresponding cost savings. Since the storage device 34 according to the invention is also arranged in the outer area, the ease of maintenance and accessibility is still guaranteed.
  • FIG. 3 shows a second embodiment of a drive arrangement 10 according to the invention. This differs from the embodiment of FIG. 2 only with regard to the design of the clamping device 38. In the following, therefore, the same reference numerals are used for similar or equivalent components.
  • the clamping device 38 is shown in FIG. 3 in turn similarly positioned within the drive assembly 10, ie in the axial outer region 22 of the fixed housing portion 36.
  • the outer region 22 is again similar to the variant of FIG. 2 dimensioned and thus takes a share a of the total axial width b of the fixed housing portion 36 a.
  • the axial distance d between the bearing device 34 and the clamping device 38 is dimensioned gleichichar- term.
  • the clamping device 38 is distinguished from the variant of FIG. 2 characterized in that it is designed as a radial clamping device, that generates radially acting pressure forces.
  • the clamping device 38 in turn has a displaceable component 42, which is displaceable radially inwardly in the direction of an outer radial active surface 52 of the coupling device 28 for generating pressure force.
  • rotation-inhibiting frictional forces can be generated.
  • the clamping device 38 is shown in a tightened state.
  • Radial clamping devices are generally advantageous in particular due to a low-complexity pneumatic controllability compared to the often exclusively hydraulically controllable axial clamping devices. In the past
  • Clamping means 38 can bridge only comparatively small gap widths to an opposite effective area. Due to the radial feed, these gap widths must be as uniform as possible even in the circumferential direction, in particular in the case of a radial clamping device 38 which bears against large peripheral regions.
  • Clamping allows, which have as a displaceable components of individual piston or diaphragm with solid joints, the displacement in turn can preferably be done pneumatically.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Units (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

L'invention concerne un système d'entraînement (10) pour un pont pivotant, le système d'entraînement (10) comportant un dispositif de pivotement (26). Le système d'entraînement comprend un dispositif de réception de force d'entraînement (30) qui est conçu pour coopérer avec une unité d'entraînement (32) afin de recevoir une force d'entraînement en rotation ; et un dispositif d'accouplement (26) qui est conçu pour accoupler l'un à l'autre le dispositif de réception de force d'entraînement (32) et une unité de pont pivotant (12) en vue d'une rotation conjointe autour d'un axe de pivotement (A). Le système d'entraînement (10) comporte en outre au moins un dispositif palier (34) qui est conçu pour le montage rotatif du dispositif de pivotement (26) par rapport à une région de carter fixe (36) du système d'entraînement (10). Le système d'entraînement (10) comporte en outre au moins un dispositif de serrage (38) qui est conçu pour fixer sélectivement le dispositif de pivotement (26) dans différentes positions en rotation. La région de carter fixe (36) du système d'entraînement (10) comprend une région intérieure (20) tournée axialement vers l'unité de pont pivotant (12) et comprend une région extérieure (20) détournée axialement de l'unité de pont pivotant (12). Selon l'invention, à la fois le dispositif palier (34) et le dispositif de serrage (38) sont disposés dans la région extérieure (22) de la région de carter fixe (36).
EP16730353.6A 2015-07-06 2016-06-16 Système d'entraînement pour un pont pivotant Withdrawn EP3319754A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015008716.9A DE102015008716A1 (de) 2015-07-06 2015-07-06 Antriebsanordnung für eine Schwenkbrücke
PCT/EP2016/063830 WO2017005472A1 (fr) 2015-07-06 2016-06-16 Système d'entraînement pour un pont pivotant

Publications (1)

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EP3319754A1 true EP3319754A1 (fr) 2018-05-16

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EP16730353.6A Withdrawn EP3319754A1 (fr) 2015-07-06 2016-06-16 Système d'entraînement pour un pont pivotant

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DE102022117967A1 (de) 2022-07-19 2024-01-25 Schaeffler Technologies AG & Co. KG Rundtischlageranordnung
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DE102015008716A1 (de) 2017-01-12
WO2017005472A1 (fr) 2017-01-12
CN108025409A (zh) 2018-05-11

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