EP1844901A1 - Système de fixation, adaptateur de fixation et procédé de fixation - Google Patents

Système de fixation, adaptateur de fixation et procédé de fixation Download PDF

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Publication number
EP1844901A1
EP1844901A1 EP07004675A EP07004675A EP1844901A1 EP 1844901 A1 EP1844901 A1 EP 1844901A1 EP 07004675 A EP07004675 A EP 07004675A EP 07004675 A EP07004675 A EP 07004675A EP 1844901 A1 EP1844901 A1 EP 1844901A1
Authority
EP
European Patent Office
Prior art keywords
adapter
mounting
fastening
tool
mounting adapter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07004675A
Other languages
German (de)
English (en)
Other versions
EP1844901B1 (fr
Inventor
Gerd Eisenblätter
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.)
Gerd Eisenblaetter GmbH
Original Assignee
Gerd Eisenblaetter 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 Gerd Eisenblaetter GmbH filed Critical Gerd Eisenblaetter GmbH
Publication of EP1844901A1 publication Critical patent/EP1844901A1/fr
Application granted granted Critical
Publication of EP1844901B1 publication Critical patent/EP1844901B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
    • B24D9/02—Expansible drums for carrying flexible material in tubular form, e.g. expanded by centrifugal force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/20—Mountings for the wheels

Definitions

  • the invention relates to a fastening system for mounting cylindrical tools on a drive shaft of a drive machine with the aid of a mounting adapter, a mounting adapter and a method for mounting cylindrical tools on a mounting adapter.
  • roller-shaped tools are, for example, surface treatment tools, such as grinding or polishing rollers.
  • Such tools are usually driven by a prime mover, such as a surface or longitudinal grinder, via a rotating drive shaft.
  • the term tool roll is alternatively used for a cylindrical tool.
  • the drive shafts of different machines often differ in diameter.
  • the lamellae are tilted relative to the radial direction, so that they straighten up during a rotation of the support roller and thereby the support roller is increased in its circumference.
  • An idle loosely attached abrasive tape sleeve is clamped during operation by the established slats and held.
  • the slats are tilted counter to the direction of movement, so that they yield at a contact pressure of the tool on a workpiece and the tool can adapt to the surface of the workpiece.
  • a similarly constructed grinding wheel, with which flexible abrasive belt rings can be clamped, is out of the DE 8202243 U1 known.
  • An inventive fastening system comprises a mounting adapter, with the aid of a roller-shaped tool can be mounted on a drive shaft of a drive machine.
  • a fastening adapter according to the invention comprises a hollow-cylindrical basic body which has a fastening device for mounting on the drive shaft in the interior and from which a plurality of lamellae spaced apart from one another extend outwards around the cylinder axis. The lamellae are tilted in their direction perpendicular to the cylinder axis in each case by a predetermined angle relative to the radial direction.
  • the outer diameter of the fastening adapter By exerting pressure or the action of a shearing force in the direction of the tilting on the lamellae, the outer diameter of the fastening adapter can be elastically reduced.
  • the compression of the mounting adapter is done essentially by the fact that the cavities between the slats, more precisely, the slots are reduced. Depending on the material of the slats but can also be involved in a compression of the slats themselves.
  • the slats can be made entirely of an elastic material. But it could also be sufficient for an elastic joint, which allows a further tilting of a stiff blade.
  • the compression of the mounting adapter is an elastic deformation. In the absence of pressure or shear forces, the lamellae spread again and take their original shape and orientation. The mounting adapter then has its original diameter again.
  • the stable support of the tool roll on the mounting adapter prevents slippage of the tool roll on the mounting adapter. In addition, this vibration of the tool can be avoided, which may leave behind unwanted chatter marks on the grinding surfaces under certain circumstances.
  • a roller-shaped tool according to the invention has a rigid, cylindrical passage opening for the fastening adapter, the inner diameter of which is smaller than that of the relaxed fastening adapter.
  • the difference in diameter may be on the order of less than 1 mm, while the diameters themselves are preferably in the range of a few centimeters, for example between 3 and 7 cm.
  • the inner diameter of the passage opening of the tool roll 44.75 mm, while the outer diameter of the relaxed mounting adapter is preferably 45 mm.
  • the length of the mounting adapter is preferably between 80 mm and 100 mm, particularly preferably 90 mm. This length corresponds favorably also the length of the tool roll.
  • the elastic deformability of the mounting adapter allows easy mounting of the tool roll on it. For this, the mounting adapter is first compressed, then into the Passage opening of the tool roll plugged in there to expand again until he is stuck in the press fit.
  • Suitable roller-shaped tools are, for example, mop wheels, fleece wheels or other grinding or polishing tools for surface treatment. They generally have a cylindrical basic shape. But this is not necessary in principle. There are also barrel-shaped or otherwise profiled rollers conceivable.
  • the cylindrical tools of the fastening system according to the invention have a cylindrical passage opening. This passage opening is rigid, so that its circular cross-section is substantially maintained even under load.
  • the passage opening of the tool roll is formed by a rigid tube with a circular cross-section.
  • This tube then carries the actual tool material.
  • the pipe may for example consist of a plastic such as PVC or ABS, a composite material such as Pertinax or epoxy resin, or metal, such as aluminum or steel.
  • This tube forms the rigid passage opening of the tool roll, while the actual tool material is arranged around the outside of the pipe and is supported by this.
  • this tool material may be, for example, an abrasive material in the form of pressed abrasive particles, abrasive lamellae, a layer of polishing fleece or the like.
  • the fastening adapter For mounting a tool roll according to the invention on a fastening adapter according to the invention, the fastening adapter, as described above, is compressed by the action of a shearing force on the blades and inserted into the passage opening of the tool roll.
  • the shearing force on the lamella ends can be exerted by enclosing the fastening adapter with a twist, for example.
  • the encompassing can be done manually. But it is also a machine solution conceivable.
  • the mounting adapter For driving the mounting adapter through the drive shaft, the mounting adapter in turn is equipped with a passage opening and a fastening device for the drive shaft. Diameter of the passage opening and the special fastening device are adapted to the drive shaft to be used. Possible embodiments of the fastening device are here, for example, an internal thread or a double groove, in which a corresponding drive shaft can engage. Basically, all known variants of rotationally fixed shaft-hub connections are suitable for this purpose. According to a preferred embodiment of the invention, however, the fastening device is an internal thread. Suitable standard threads are for example M10 thread, M14 thread or 5/8 "thread.
  • the tool roll rotates with the mounting adapter driven by the drive shaft. Due to the rotation, an outwardly directed centrifugal force additionally acts on the tilted and stressed lamellae. This increases the pressure of the lamellae on the inner wall of the passage opening. This increases the friction between the fin ends and the passage opening.
  • the holder of the tool on the mounting adapter is stabilized.
  • the slats of the fastening adapter according to the invention consist of an elastic material.
  • an elastic material such is for example rubber or polyurethane with a preferred hardness between 60 Shore and 100 Shore. This hardness range is particularly advantageous for avoiding disturbing vibrations. If the entire slats are made of an elastic material, so improve the compression properties of the mounting adapter. On the other hand, the expansion caused by centrifugal force during operation is also facilitated.
  • compression elastic lamellae mean that the compression takes place not only due to the reduced voids between the lamellae but also due to compression of the lamellae themselves.
  • the construction is simplified compared to a variant with only elastic joints.
  • the lamellae are also designed so that they have the smallest cross-section at their point of attachment to the hollow cylindrical body.
  • lamellae made of a uniform elastic material, this has the consequence that the lamellae bend on the one hand for compression, on the other hand also for expansion, preferably at this attachment point. It is thus formed, so to speak, an elastic joint.
  • the lamellae are also preferably configured such that in the relaxed state of the mounting adapter, the outer ends of all the lamellae together form a cylinder jacket surface interrupted by slots. Relaxed state here means that the mounting adapter is at rest and no pressure or force acts on him. This preferred embodiment of the fin ends causes a particularly good concern of the fin ends in the passage opening of the cylindrical tool.
  • the contact surface between the fin ends and tool roll is then particularly large. This improves the friction between the mounting adapter and the tool roller.
  • the preferred shape of the lamellae with the smallest cross-section at the point of attachment and outer ends, which taken together form a cylinder jacket surface, can be realized by dividing the lamellae by slits each having parallel boundary walls. This shape is obtained by cutting uniform slots of constant width into a hollow cylindrical body. In the description of the figures, reference will be made to this in more detail.
  • its peripheral edge is chamfered on at least one of its end faces. This facilitates the insertion of the mounting adapter in the passage opening of the cylindrical tool.
  • the fastening adapter on its end face, which faces the drive machine in operation extends cylindrically around the center with the fastening device.
  • a cylindrical projection is formed from which no lamellae go out.
  • a tool roll according to the invention is pushed over the mounting adapter only so far during assembly that the cylindrical supernatant still looks out.
  • the cylindrical projection then serves as a spacer between the drive machine and the tool roll.
  • the fastening device in the passage opening of the fastening adapter expediently continues in this extension.
  • the entire attachment adapter may be constructed such that the attachment device and the passage opening are located in a cylindrical metal core around which the lamellae are made of an elastic material.
  • the cylindrical protrusion may be formed simply by a metal core elongated with respect to the slats.
  • a mounting adapter on the drive shaft of a prime mover may be provided in a preferred development in the cylindrical projection a thread for a grub screw with a grub screw.
  • a screw connection and fastening degree can be additionally fixed.
  • the grub screw is then conveniently mounted laterally in the cylindrical supernatant.
  • this has a stop ring for the tool roll on its end facing the drive machine.
  • This stop ring can either consist of the material of the slats or of another material, for example metal. He can be made in one piece both with the slats and with the metal core of the mounting adapter or subsequently recognized.
  • the mounting adapter with a cylindrical projection of the stop ring is suitably arranged between the supernatant and the slats at the end of the slats.
  • the outer diameter of the stop ring is greater than the inner diameter of the passage opening in the tool roll and less than or equal to the outer diameter.
  • the stop ring may be formed of an elastic material, it is not compressible to the extent that the tool roll could be slid over it.
  • the stop ring provides a stop for the tool roll and serves as a spacer to the drive machine.
  • the solution of the object of the invention also succeeds with a mounting adapter for use in a fastening system as described above.
  • An inventive method for attaching a cylindrical tool with a tubular passage opening on a mounting adapter for a drive shaft of a prime mover includes embracing the mounting adapter with a twist, whereby the mounting adapter is compressed. Then, the mounting adapter is inserted in this compressed state in the passage opening of the tool, after which the compression is released, whereupon the mounting adapter expands again in the passage opening and thus forms by clamping and frictional engagement on its outer surface a rotationally fixed connection with the tool.
  • twist is understood to mean a rotation of the outer circumference of the fastening adapter with respect to its center marked by the passage opening in the direction of movement preferred in operation.
  • a fastening adapter 10 comprises a hollow-cylindrical basic body 11, from which lamellae 15 originate.
  • the slats 15 and the hollow cylindrical base body 11 may be made of one piece or assembled.
  • the fins 15 are separated by slots 14. Both the slits 14 and the slats 15 are tilted relative to the radial direction by a predetermined angle ⁇ (FIG. 2).
  • the cross-sectional shape of the fins 15 is determined by the cross-sectional shape of the slots 14 therebetween.
  • the slots 14 are configured as channels with approximately trapezoidal cross-section, wherein the two boundary surfaces are parallel to the adjacent blades 15.
  • the spaces are formed as slots 14 of constant width. Accordingly, the cross section of the fins 15 is similar to that of a circular sector, which becomes wider with increasing radius.
  • the lamellae 15 are thus cylinder sectors, which are arranged tilted from the radial direction.
  • the tilt angle ⁇ can be defined differently. Depending on the definition and reference point, it then assumes different values. The values may vary in the range of about 15 ° to 90 °, depending on the definition. However, all fins 15 are tilted objectively under the same angle with respect to their respective radial direction.
  • the mounting adapter 10 also has a preferred operating direction, which is indicated in Fig. 2 by the arrow 20.
  • the fins 15 are tilted in the preferred operating direction 20 from its radial direction.
  • a braking of the blade ends caused by friction between the tool roll and mounting cylinder counteracts the tilting shear force.
  • the lamellae 15 spread further, so that the connection between the mounting adapter and roller-shaped tool is additionally stabilized.
  • the mounting adapter is equipped with a fastening device 12.
  • the embodiment shown in Figures 2, 4 and 5 has an internal thread with which it can be screwed onto a corresponding drive shaft.
  • the embodiment shown in Fig. 3 differs from that shown in Fig. 2 only in that the fastening device is formed instead of an internal thread as a double groove.
  • other cross sections for corresponding drive shafts are possible.
  • Fig. 3 shows how this compression can be done by embracing the mounting adapter by hand.
  • the compression can be achieved on the one hand by a pressure on the Lammellen 15 or by embracing with a twist.
  • the inclusion of a twist means that the center of the mounting adapter is held in place with the fastening device 12 while the outer blade ends are rotated relative to this center.
  • the direction of rotation is shown by the arrow in the hand in Fig. 3.
  • the fastening adapter 10 has a reduced diameter and can thus be inserted into the passage opening 21 of a cylindrical tool 17.
  • the passage opening 21 of the tool 17 is formed here by a PVC pipe 18 which carries on the outside an annular cylinder 19 made of abrasive material.
  • the pressure of the slats 15 on the PVC pipe 18 increases the friction between the slats 15 and the PVC pipe 18. In operation, the pressure, and thus the friction, by acting on the slats 15 Centrifugal force additionally increased.
  • the holder of the tool on the mounting adapter 10 is therefore particularly stable during operation.
  • Fig. 5 shows a further embodiment of a mounting adapter in a tool roll in section through the longitudinal axis.
  • a fastening device 12 an internal thread is provided, which is located in a metal core of the mounting adapter 10.
  • the metal core is extended over the length of the fins 15 out and forms a cylindrical projection 23.
  • a thread for a grub screw 24 is additionally provided in the cylindrical projection.
  • the cylindrical projection 23 is located at the end of the fastening adapter 10 facing the drive machine.
  • the fastening adapter 10 has a stop ring 22 which, like the core, is made of metal and connected thereto.
  • a tool roll 17, made of a PVC pipe 18 and a slip ring cylinder 19 is pushed from the other end of the mounting adapter 10 over this.
  • the mounting adapter 10 is beveled at this end 25.
  • the stop ring 22 has an outer diameter which is greater than the inner diameter of the PVC pipe 18 and smaller than the outer diameter of the slip ring cylinder 19.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Automatic Assembly (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP07004675A 2006-04-12 2007-03-07 Système de fixation et adaptateur de fixation Active EP1844901B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006017305A DE102006017305A1 (de) 2006-04-12 2006-04-12 Befestigungssystem, Befestigungsadapter und Befestigungsverfahren

Publications (2)

Publication Number Publication Date
EP1844901A1 true EP1844901A1 (fr) 2007-10-17
EP1844901B1 EP1844901B1 (fr) 2011-06-15

Family

ID=38110713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07004675A Active EP1844901B1 (fr) 2006-04-12 2007-03-07 Système de fixation et adaptateur de fixation

Country Status (5)

Country Link
US (1) US20070259611A1 (fr)
EP (1) EP1844901B1 (fr)
AT (1) ATE512765T1 (fr)
CA (1) CA2584998A1 (fr)
DE (1) DE102006017305A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105014564A (zh) * 2015-08-12 2015-11-04 丹阳市超宇五金磨具有限公司 一种抛光轮
FR3073166A1 (fr) * 2017-11-09 2019-05-10 Far Group Europe Rouleau a surface fonctionnelle pour outil electrique et outil electrique dote d'un tel rouleau

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0722107D0 (en) * 2007-11-10 2007-12-19 Exakt Prec Tools Ltd Improvements in adn relating to power tools
JP6140540B2 (ja) * 2013-06-14 2017-05-31 スリーエム イノベイティブ プロパティズ カンパニー アダプタ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8202243U1 (de) * 1982-01-29 1982-05-13 Kemper-Kontakt Gert Kemper GmbH & Co KG, 5600 Wuppertal Schleifscheibe
DE9003235U1 (de) * 1990-03-20 1990-05-23 Gerd Eisenblaetter Gmbh, 8192 Geretsried Schleifwalze
DE29804042U1 (de) * 1998-02-18 1998-04-30 Kemper-Kontakt Gert Kemper GmbH & Co KG, 42327 Wuppertal Walzenförmiger Träger für Schleifhülsen
FR2769532A1 (fr) * 1997-10-13 1999-04-16 Maurice Plazanet Tambour rotatif pour machine de traitement de sol et machine equipee dudit tambour

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IL73328A (en) * 1984-10-26 1990-02-09 Tzora Furniture Ind Ltd Rotatable joint with coaxially assembled parts
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JP3133917B2 (ja) * 1995-05-02 2001-02-13 矢崎総業株式会社 ステアリングホイールと回転コネクタとの結合構造
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IT1298703B1 (it) * 1997-10-02 2000-01-12 Unibase Spa Rullo ad espansione centrifuga perfezionato per macchine smerigliatrici
US6290038B1 (en) * 1999-03-29 2001-09-18 Lord Corporation Elastomer damper
US6152814A (en) * 1999-09-16 2000-11-28 Rp Abrasives & Machine Co. Inc. Expandable abrasive belt for use with inflatable tool
DE10042109C2 (de) * 2000-08-28 2003-07-03 M & F Entw & Patentverwertungs Polierwerkzeug
FR2853990B1 (fr) * 2003-04-17 2006-12-29 Ge Med Sys Global Tech Co Llc Dispositif de montage d'une anode tournante d'un tube a rayons x et procede de fabrication de ce dispositif
US7101108B1 (en) * 2003-12-22 2006-09-05 Lung-Tang Chuang Collar for taking hold of fixation piece of window shade rod

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8202243U1 (de) * 1982-01-29 1982-05-13 Kemper-Kontakt Gert Kemper GmbH & Co KG, 5600 Wuppertal Schleifscheibe
DE9003235U1 (de) * 1990-03-20 1990-05-23 Gerd Eisenblaetter Gmbh, 8192 Geretsried Schleifwalze
FR2769532A1 (fr) * 1997-10-13 1999-04-16 Maurice Plazanet Tambour rotatif pour machine de traitement de sol et machine equipee dudit tambour
DE29804042U1 (de) * 1998-02-18 1998-04-30 Kemper-Kontakt Gert Kemper GmbH & Co KG, 42327 Wuppertal Walzenförmiger Träger für Schleifhülsen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105014564A (zh) * 2015-08-12 2015-11-04 丹阳市超宇五金磨具有限公司 一种抛光轮
FR3073166A1 (fr) * 2017-11-09 2019-05-10 Far Group Europe Rouleau a surface fonctionnelle pour outil electrique et outil electrique dote d'un tel rouleau
EP3482879A1 (fr) * 2017-11-09 2019-05-15 Far Group Europe Rouleau a surface fonctionnelle pour outil electrique et outil electrique dote d'un tel rouleau

Also Published As

Publication number Publication date
DE102006017305A1 (de) 2007-10-18
EP1844901B1 (fr) 2011-06-15
US20070259611A1 (en) 2007-11-08
CA2584998A1 (fr) 2007-10-12
ATE512765T1 (de) 2011-07-15

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