WO2011046482A1 - Adjustable bracket in fixtures - Google Patents

Adjustable bracket in fixtures Download PDF

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Publication number
WO2011046482A1
WO2011046482A1 PCT/SE2010/000246 SE2010000246W WO2011046482A1 WO 2011046482 A1 WO2011046482 A1 WO 2011046482A1 SE 2010000246 W SE2010000246 W SE 2010000246W WO 2011046482 A1 WO2011046482 A1 WO 2011046482A1
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WO
WIPO (PCT)
Prior art keywords
top plate
adjustment
adjustment means
bottom plate
bracket according
Prior art date
Application number
PCT/SE2010/000246
Other languages
French (fr)
Inventor
Gilbert Ossbahr
Original Assignee
Gilbert Ossbahr
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 Gilbert Ossbahr filed Critical Gilbert Ossbahr
Priority to EP10823681.1A priority Critical patent/EP2488326A4/en
Publication of WO2011046482A1 publication Critical patent/WO2011046482A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
    • B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
    • B64F5/10—Manufacturing or assembling aircraft, e.g. jigs therefor
    • 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

Definitions

  • the invention concerns an adjustable bracket for position adjustment of supporting points in flexible fixtures for instance intended for assembly of aeroplanes and other complex products.
  • fixtures are used to maintain the different parts of the product in position during the assembly process.
  • These fixtures are normally specially designed to fit the geometry of the specific product. They comprise, in typical cases, a welded substructure holding a number of support and localizing devices, so called adapter units or fixing means in specific positions.
  • the adapter units are intended to be in contact with the products and must therefore be mounted in the sub structure with great accuracy. Since the substructure normally has a low dimensional accuracy particularly lined in and ground in inserts, so called shims are between the adapter units and their fastening surfaces in the sub structure.
  • the adapter units are then locked against lateral movements in the lined in positions by punching pins of steel into holes that have been drilled jointly through the parting line between the adapter units and the substructure, so called pinning.
  • a new type of fixtures, flexible fixtures instead uses substructures of steel or aluminum profiles joined by releasable joints, for instance in accordance with The Swedish patent 524 073. In this way the substructure may when needed be adapted or rebuilt, for use at any one of several different products.
  • the substructure has in these fixtures special adjustable fastening means mounted, that in turn support the adapter units.
  • the fastening means may guided by measured values from a measuring instrument such as "Lasertracker” and by means of adjusting screws be so adjusted that chosen positions for the adaptors can be obtained within a range of adjustment.
  • a measuring instrument such as "Lasertracker”
  • the moveable parts in the adjustable brackets are locked for instance with hydraulic or mechanical couplings, at which the different adapter units are fixed to their positions, ref. 1.
  • adjustable brackets in flexible fixtures are space requiring. For instance hexapodes, that have been used for this purpose, have a building height of almost one meter, ref 2. They do not then provide accessibility for humans and tools that in many cases is desired.
  • adjustable brackets of present types are composed of moveable parts that for their function must show a play between them. Due to this the positional accuracy of the pick up units will not be as good as sometimes is desired.
  • present adjustable brackets must have very generous proportioning to obtain the stiffness and strength that is required to withstand the process forces at mounting of the product. The costs of the fixtures will then not be as low as desired.
  • the adjustable bracket principle make a very compact design possible.
  • the mentioned space problem is essentially solvedFurthermore it has a locking device that compress all plays in the moveable parts of the bracket. In this way the final position at adjustment will be very stable and precise.
  • the locking device in the bracket contribute to reinforced stiffness and strength in the adjusted position, which give the possibility of handling also high process forces at the mounting of products.
  • the invented bracket has a smaller adjustment range than present adjustment brackets in corresponding applications, for instance said hexapodes.
  • This restriction is circumvented by instead adapting the rebuildable substructure in the fixture to give the brackets locations that allow adjustment of the adapter units to the correct position within the adjustment range.
  • Fig. 1 illustrates the use of a recommended type of the adjustable bracket.
  • Fig. 2 depicts the adjustable bracket separately and more clearly.
  • Fig. 3, 4, 5 and 6 show cross-sections of the recommended shape of the adjustable bracket.
  • Fig. 7 depicts a version of the bracket where the locking device for the adjusted position of the bracket is unchanged, but where the device for its adjustment is in the shape of a parallel-kinematic mechanism.
  • Fig. 8 shows a version of the adjustable support, where once again the locking device for the adjustment of the bracket is unchanged, but where the device for its adjustment is a link mechanism.
  • Fig. 9 shows the link mechanism for adjustment more clearly.
  • Fig. 10 shows a version of the bracket where the vertical adjustment is by means of spherical nuts in the locking device of the bracket.
  • FIG. 1 In fig. 1 is in detail illustrated how a product 1 that is to be mounted is held in position by an adapter unit 2 that in turn is secured in the top plate in the adjustable bracket 3.
  • the top plate 4 in the bracket can be adjusted a few millimeters in the three coordinate directions and a few degrees in the three angular directions relative the bottom plate 5.
  • the bottom plate 5 is in turn with the bolts 6 tightened to the beam 7 that is a part of the substructure of the fixture.
  • the bracket is shown separately in its recommended embodiment and how the top plate can be adjusted in the six degrees of freedom in the room.
  • the three adjustments screws 8 are used to adjust the top plate vertically and in two angular directions. These screws 8 and also the other screws in the construction are of so called ball-top type , that is they have a turnable ball with a flat side at its tip. The adjustments screw will in this way get a good contact against the counter surface also at some angular deviation.
  • the fourth adjustment screw 9 in the top plate is used to achieve additional contact against the bottom plate and provide better stability.
  • the two adjustment screws 10 act from the side against a protruding part 12 of the top plate, said part extends down through the recess 13 in the bottom plate and has a play relative the walls of the recess.
  • the top plate is displaced laterally and an associated angle.
  • the likewise laterally directed adjustment screw 11 provides displacement in the third longitudinal axis. To each one of the laterally directed adjustment screws also corresponding counter screws belong.
  • the corner bolts 15 are used for locking of the top plate 4 and are stationary mounted in the bottom plate 5. These bolts are in typical cases the same bolts that are numbered 6 in fig 1.
  • the corner bolts 15 serve at the same time as fastening against the substructure in the fixture. They pass through holes 16 in the top plate, said holes being over-sized relative the diameter of the bolts. In this way lateral adjustment of the top plate is made possible without the corner bolts 15 being in the way.
  • the nuts 17 are used to lock the top plate when the adjustment of the top plate has been executed. The axial forces from these nuts are then transferred via a package of spherical washers 18 to the surface of the top plate 19. In this way friction develop between the washers in the packet and the surface 19 on the top plate, which secure that the adjusted position is maintained. Increased friction also arise between adjustment screws 8 and 9 of the top plate in their contact with the bottom plate.
  • FIG. 7 Another version of the invented construction, that may be of advantage as to precision, has instead of adjustment screws an adjustment device based on a parallel cinematic mechanism.
  • a parallel cinematic mechanism holds a top plate in a statically controlled position by six articulated legs cooperating in the holding of a common top plate.
  • the adjustable bracket at the used parallel cinematic mechanism is illustrated in fig. 7.
  • the articulated link arms 21 have mutually angled mounting positions and connect the top plate 4 with the bottom plate 5.
  • the link arms have in both their ends spherical bearings 22 that in their turn are fastened in pins 23. These pins are pivotable in their fastenings in top and bottom , 4 and 5 respectively and have radially an excentric offset relative their bearings 22 at the linkarms.
  • the fastening points of the linkarms can be displaced to a chosen position within a movement circle.
  • the top plate is in this way displaced and can be adjusted to arbitrary positions in six freedom degrees within an adjustment range.
  • the top plate 4 is in this case adjusted vertically and in two angles with adjusting screws 8 and 9 in accordance with the described design in the recommended embodiment.
  • the position laterally and the associated angle is adjusted with link mechanism that has turnable pins 24 and 25.
  • These pins have at their lower inwards facing part eccentrically placed spherical bearings 26 that each hold a link arm 27.
  • the link arms are as is apparent from the cross section in fig. 10 placed in a pocket 28 between the two plates. Two of the link arms cross the main direction of the two plates and the third one extend in this direction. Furthermore the link arms are via an additional spherical bearing 29 coupled to a pin 30, that is fastened in the bottom plate 5.
  • a contracting spring 31 of rubber holds the two plates together during the adjustment process.
  • the locking of the adjusted position of the top plate is also here by means of the same type as in above described embodiments, that is by means of nuts at the corner bolts 15 that press spherical washers 18 together and hold the top plate fast by compressive force and friction.
  • the turnable and self-braking adjustment screws 8 and 9 contribute in this case.
  • a further version of the bracket, that avoid bending tensions in the top plate at its locking, is illustrated in fig 10.
  • the height position and two associated angle values of the top plate are in this version adjusted by means of from below active nuts 32, that extends towards the corner bolts 15 and that have a spherical surface fitting against spherical washers 18.
  • Rubber springs 20 holds the parts of the bracket together during the adjustment process, and can, as illustrated in fig 1 be fastened in the outer edges of of top and bottom plates respectively with bolts 33.
  • Locking in adjusted position is by means of spherical nuts 32 and washers 18 that run on the corner screws 15 and can press against each other without subjecting the top plate to any bending torque.
  • the bracket according to the invention can by means of external position measuring ("Lasertrack”) be adjusted very precisely to compensate for variations and deviations in the supporting structure.
  • Lasertrack external position measuring
  • the adjustment can be controlled by the position measuring and can be made manually or by means of programmable controllable tools or by means of a robot.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Transportation (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

Adjustable bracket in fixtures with a bottom plate (5) for fastening on a supporting structure and a top plate (4) on which a fixture can be mounted. The top plate (4) can be adjusted in the six degrees of freedom in the room. Three adjustment screws (8) in the top plate (4) are used to adjust this vertically and in two angular directions relative the bottom plate. Two adjustment screws (10) in the bottom plate act from the side against a downwards from the top plate (4) protruding part (12), that extends down into a recess (13) in the bottom plate and has a play relative the walls of the recess. By adjustment of the screws (10) the top plate is displaced laterally and an associated angle. A likewise laterally directed adjustment screw (1 1 ) gives displacement in the third longitudinal axis. To each one of the laterally directed adjustment screws also corresponding counter screws (14) belong. They are used to secure that an adjusted lateral position of the top plate is maintained. Corner bolts (15) are used for locking of the top plate (4). The corner bolts (15) pass through holes 15 in the top plate, which have a greater diameter relative the diameter of the bolts.

Description

ADJUSTABLE BRACKET IN FIXTURES
TECHNICAL FIELD
The invention concerns an adjustable bracket for position adjustment of supporting points in flexible fixtures for instance intended for assembly of aeroplanes and other complex products.
PRIOR ART
At the assembly of complex products fixtures are used to maintain the different parts of the product in position during the assembly process. These fixtures are normally specially designed to fit the geometry of the specific product. They comprise, in typical cases, a welded substructure holding a number of support and localizing devices, so called adapter units or fixing means in specific positions. The adapter units are intended to be in contact with the products and must therefore be mounted in the sub structure with great accuracy. Since the substructure normally has a low dimensional accuracy particularly lined in and ground in inserts, so called shims are between the adapter units and their fastening surfaces in the sub structure. The adapter units are then locked against lateral movements in the lined in positions by punching pins of steel into holes that have been drilled jointly through the parting line between the adapter units and the substructure, so called pinning. A new type of fixtures, flexible fixtures, instead uses substructures of steel or aluminum profiles joined by releasable joints, for instance in accordance with The Swedish patent 524 073. In this way the substructure may when needed be adapted or rebuilt, for use at any one of several different products. The substructure has in these fixtures special adjustable fastening means mounted, that in turn support the adapter units. The fastening means may guided by measured values from a measuring instrument such as "Lasertracker" and by means of adjusting screws be so adjusted that chosen positions for the adaptors can be obtained within a range of adjustment. When the position values have been reached, the moveable parts in the adjustable brackets are locked for instance with hydraulic or mechanical couplings, at which the different adapter units are fixed to their positions, ref. 1. The advantage with such flexible fixtures is that one and the same fixture can be used for several different products. One also avoids the time consuming work with shims and pinning at the work with building fixtures.
One of the problems at present types of adjustable brackets in flexible fixtures is that they are space requiring. For instance hexapodes, that have been used for this purpose, have a building height of almost one meter, ref 2. They do not then provide accessibility for humans and tools that in many cases is desired. Another problem is that adjustable brackets of present types are composed of moveable parts that for their function must show a play between them. Due to this the positional accuracy of the pick up units will not be as good as sometimes is desired. A third problem is that present adjustable brackets must have very generous proportioning to obtain the stiffness and strength that is required to withstand the process forces at mounting of the product. The costs of the fixtures will then not be as low as desired.
DESCRIPTON OF THE INVENTION
The adjustable bracket principle, according to the invention, make a very compact design possible. With this the mentioned space problem is essentially solvedFurthermore it has a locking device that compress all plays in the moveable parts of the bracket. In this way the final position at adjustment will be very stable and precise. Furthermore the locking device in the bracket contribute to reinforced stiffness and strength in the adjusted position, which give the possibility of handling also high process forces at the mounting of products. With this the most essential problems at adjustable brackets of existing types are solved.
For the sake of clarity it should be mentioned that the invented bracket has a smaller adjustment range than present adjustment brackets in corresponding applications, for instance said hexapodes. This restriction is circumvented by instead adapting the rebuildable substructure in the fixture to give the brackets locations that allow adjustment of the adapter units to the correct position within the adjustment range.
Further advantages and characteristics of the invention are apparent from the claims and the following descriptions of preferred embodiments of the invention respectively.
The invention is below described with reference to the following drawings: Fig. 1 illustrates the use of a recommended type of the adjustable bracket. Fig. 2 depicts the adjustable bracket separately and more clearly.
Fig. 3, 4, 5 and 6 show cross-sections of the recommended shape of the adjustable bracket.
Fig. 7 depicts a version of the bracket where the locking device for the adjusted position of the bracket is unchanged, but where the device for its adjustment is in the shape of a parallel-kinematic mechanism.
Fig. 8 shows a version of the adjustable support, where once again the locking device for the adjustment of the bracket is unchanged, but where the device for its adjustment is a link mechanism. Fig. 9 shows the link mechanism for adjustment more clearly.
Fig. 10 shows a version of the bracket where the vertical adjustment is by means of spherical nuts in the locking device of the bracket.
In fig. 1 is in detail illustrated how a product 1 that is to be mounted is held in position by an adapter unit 2 that in turn is secured in the top plate in the adjustable bracket 3. The top plate 4 in the bracket can be adjusted a few millimeters in the three coordinate directions and a few degrees in the three angular directions relative the bottom plate 5. The bottom plate 5 is in turn with the bolts 6 tightened to the beam 7 that is a part of the substructure of the fixture.
In fig 2-6 the bracket is shown separately in its recommended embodiment and how the top plate can be adjusted in the six degrees of freedom in the room. The three adjustments screws 8 are used to adjust the top plate vertically and in two angular directions. These screws 8 and also the other screws in the construction are of so called ball-top type , that is they have a turnable ball with a flat side at its tip. The adjustments screw will in this way get a good contact against the counter surface also at some angular deviation. The fourth adjustment screw 9 in the top plate is used to achieve additional contact against the bottom plate and provide better stability. The two adjustment screws 10 act from the side against a protruding part 12 of the top plate, said part extends down through the recess 13 in the bottom plate and has a play relative the walls of the recess.
By adjustment of the screws 10 the top plate is displaced laterally and an associated angle. The likewise laterally directed adjustment screw 11 provides displacement in the third longitudinal axis. To each one of the laterally directed adjustment screws also corresponding counter screws belong.
The corner bolts 15 are used for locking of the top plate 4 and are stationary mounted in the bottom plate 5. These bolts are in typical cases the same bolts that are numbered 6 in fig 1. The corner bolts 15 serve at the same time as fastening against the substructure in the fixture. They pass through holes 16 in the top plate, said holes being over-sized relative the diameter of the bolts. In this way lateral adjustment of the top plate is made possible without the corner bolts 15 being in the way. The nuts 17 are used to lock the top plate when the adjustment of the top plate has been executed. The axial forces from these nuts are then transferred via a package of spherical washers 18 to the surface of the top plate 19. In this way friction develop between the washers in the packet and the surface 19 on the top plate, which secure that the adjusted position is maintained. Increased friction also arise between adjustment screws 8 and 9 of the top plate in their contact with the bottom plate.
In the construction there are also contracting springs 20 of rubber. The object of these is to keep the top plate drawn towards the bottom plate while adjustment is in progress and then keep unavoidable plays in the threads of the adjustment screws compressed in one and the same direction. The nuts 17 are then not yet tightened.
In addition to the above described recommended embodiment of the bracket according to the invention there are a number of versions that may be appropriate at specific conditions. One version of the above described embodiment, that is obvious, has the protrusion 12 below the top plate 4, fig. 4, moved to the upper side of the bottom plate 5. The laterally directed adjustment screws 10 and 14 in the bottom plate are at the same time moved to corresponding positions in the top plate. The same functions are then obtained as with the just described embodiment, but with reversed locations. It is also possible to conceive all adjustment screws being placed in one of the plates.
Another version of the invented construction, that may be of advantage as to precision, has instead of adjustment screws an adjustment device based on a parallel cinematic mechanism. Such a mechanism holds a top plate in a statically controlled position by six articulated legs cooperating in the holding of a common top plate. The adjustable bracket at the used parallel cinematic mechanism is illustrated in fig. 7. The articulated link arms 21 have mutually angled mounting positions and connect the top plate 4 with the bottom plate 5. The link arms have in both their ends spherical bearings 22 that in their turn are fastened in pins 23. These pins are pivotable in their fastenings in top and bottom , 4 and 5 respectively and have radially an excentric offset relative their bearings 22 at the linkarms. By adjusting the angle positions of the pins in the two plates, for instance by means of a screwdriver the fastening points of the linkarms can be displaced to a chosen position within a movement circle. The top plate is in this way displaced and can be adjusted to arbitrary positions in six freedom degrees within an adjustment range.
The locking of the adjusted position of the top plate take place with the same type of device as in previously described embodiments, that is by means of nuts at the corner bolts 15, that press together spherical washers 18 and holds the top plate by compressive force and friction. At the compression also the existing plays in the parallel kinematic mechanism are compressed which result in a play free and stiff positioning of the top plate. To minimize the play during positioning procedure also a contractive spring may be placed between the two plates 4 and 5 (not shown).
A further version of the invented bracket that may have advantages as to simplicity in the adjustment method is illustrated in fig. 8 and 9.
The top plate 4 is in this case adjusted vertically and in two angles with adjusting screws 8 and 9 in accordance with the described design in the recommended embodiment. The position laterally and the associated angle is adjusted with link mechanism that has turnable pins 24 and 25. These pins have at their lower inwards facing part eccentrically placed spherical bearings 26 that each hold a link arm 27. The link arms are as is apparent from the cross section in fig. 10 placed in a pocket 28 between the two plates. Two of the link arms cross the main direction of the two plates and the third one extend in this direction. Furthermore the link arms are via an additional spherical bearing 29 coupled to a pin 30, that is fastened in the bottom plate 5. A contracting spring 31 of rubber holds the two plates together during the adjustment process.
The locking of the adjusted position of the top plate is also here by means of the same type as in above described embodiments, that is by means of nuts at the corner bolts 15 that press spherical washers 18 together and hold the top plate fast by compressive force and friction. To maintained locking the turnable and self-braking adjustment screws 8 and 9 contribute in this case. A further version of the bracket, that avoid bending tensions in the top plate at its locking, is illustrated in fig 10. The height position and two associated angle values of the top plate are in this version adjusted by means of from below active nuts 32, that extends towards the corner bolts 15 and that have a spherical surface fitting against spherical washers 18. Said washers 18, that have one side flat, act against the flat lower surface of the top plate 3 and can also slide against this surface of the top plate during the adjustment. Rubber springs 20 holds the parts of the bracket together during the adjustment process, and can, as illustrated in fig 1 be fastened in the outer edges of of top and bottom plates respectively with bolts 33.
Lateral adjustment and associated angular adjustment is in this version of the bracketdone by means of adjustment screws 10 and 11, as has been described in connection with figs 2-6 or by means of a mechanism, that has been described with reference to figs 8 and 9.
Locking in adjusted position is by means of spherical nuts 32 and washers 18 that run on the corner screws 15 and can press against each other without subjecting the top plate to any bending torque.
The bracket according to the invention can by means of external position measuring ("Lasertrack") be adjusted very precisely to compensate for variations and deviations in the supporting structure. By starting from external or integrated position measuring of the positions of the adapter units sufficient degree of adjustment can be evaluate, that is for instance required turning angles for the used adjustment screws. This calculation can even consider possible individual registered variations between different brackets. The adjustment can be controlled by the position measuring and can be made manually or by means of programmable controllable tools or by means of a robot.
REFERENCES
Ref. 1. Kihlman H. Affordable Automation for Aircraft Assembley, Dissertation no 953, Linkoping Studies in Science and Technology, ISBN: 91-85299-59-6,2005
Ref. 2. Kilman H. Engstrom M, Flexible Fixtures with Low Costs and Short Lead Times, SAE International, 2006

Claims

1. Bracket (3) for adaptor units (2) in a supporting structure that comprise, a bottom plate (5) that is fastened in the structure and a top plate that is fastened in the adapter unit, characterized in that adjustment means are arranged acting between the plates for mutual adjustment in six axis's and locking means for locking of adjusted position.
2. Bracket according to claim 1 , characterized in that one of the plates (4) comprise one or several protruding parts (12) extending into one or several recesses (13) in the other plate (5) and that the protruding part or parts in relation to the recess or recesses have a play corresponding to the desired degree of adjustment and that a first set of adjustment means (10) are arranged between the protruding part or parts and the recess or recesses to adjust the plates relative each other and that a second set of adjustment means (8) are arranged acting between the plates for adjustment of these relative each other perpendicular to said plane, as well as mutual angles relative this plane.
3. Bracket according to claim 1 or 2, characterized in the locking means including bottom plate and top plate against each other tensioning means (15).
4. Bracket according to any of the preceding claims, characterized in that the adjustment means are held in contact with the herewith cooperating surfaces by springs, counter adjustment means (14), gravity or the locking means.
5. Bracket according to claim 1, characterized in that the adjustment means include between bottom plate (5) and top plate (4) adjustable links (21) with eccentric bearings.
6. Bracket according to any of the preceding claims, characterized in that one or several of the adjustment means are constitutes of screws (8) or the like threaded in the bottom plate (5) or top plate (4) respectively.
7. Bracket according to any of the preceding claims, characterized in that the locking means consist of threaded bars (15) fastened in the bottom plate (4) and extending through openings (16) in the top plate (5), which openings show a desired adjustment measure corresponding play to respective threaded bar and that nuts (17) are arranged to press the plates against each other with an insertion of washers.
8. Bracket according to claim 2 and 7, characterized in that the adjustment means consist of externally threaded cases and that the threaded bars for locking with play extends through the cases that for turning are shaped with grip areas in their surfaces facing away from the bottom plate.
9. Bracket according to any of the claims 1 to 5, characterized in that the adjustment means include pivotable cams, eccentric adjustment means (23) and/or links.
10. Bracket according to any of the preceding claims characterized in that the adjustment means as well as the locking means or possible springs act via washers (18) or intermediate blocks with part spherical or part cylindrical areas facing the adjustment means and flat areas against the opposed part so that large uniformly loaded contact areas are obtained.
PCT/SE2010/000246 2009-10-16 2010-10-14 Adjustable bracket in fixtures WO2011046482A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10823681.1A EP2488326A4 (en) 2009-10-16 2010-10-14 Adjustable bracket in fixtures

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0901338A SE533630C2 (en) 2009-10-16 2009-10-16 Adjustable bracket in structures
SE0901338-4 2009-10-16

Publications (1)

Publication Number Publication Date
WO2011046482A1 true WO2011046482A1 (en) 2011-04-21

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Country Status (3)

Country Link
EP (1) EP2488326A4 (en)
SE (1) SE533630C2 (en)
WO (1) WO2011046482A1 (en)

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CN104097060A (en) * 2014-07-10 2014-10-15 武汉当代核技术有限公司 Support for adjusting position of beam line heavy type electromagnetic element of particle accelerator
CN106180528A (en) * 2016-08-19 2016-12-07 苏州高登威科技股份有限公司 Mistake proofing detent mechanism
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CN110289737A (en) * 2019-08-13 2019-09-27 南京汽轮电机(集团)有限责任公司 A kind of generator bearing shell protective device
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CN114290023A (en) * 2021-12-30 2022-04-08 哈尔滨工业大学 Six-degree-of-freedom low-stress assembly device for spacecraft

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EP2488326A4 (en) 2017-11-01

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