WO2004041478A1 - Lageranordnung zur schwingfähigen lagerung eines schleiftellers an einem schleifgerät - Google Patents
Lageranordnung zur schwingfähigen lagerung eines schleiftellers an einem schleifgerät Download PDFInfo
- Publication number
- WO2004041478A1 WO2004041478A1 PCT/DE2003/002337 DE0302337W WO2004041478A1 WO 2004041478 A1 WO2004041478 A1 WO 2004041478A1 DE 0302337 W DE0302337 W DE 0302337W WO 2004041478 A1 WO2004041478 A1 WO 2004041478A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bearing arrangement
- grinding
- plate
- arrangement according
- mounting
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
- B24B41/047—Grinding heads for working on plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/04—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
Definitions
- the invention is based on a bearing arrangement for the oscillatable mounting of a grinding plate on a grinding device, in particular in the case of a 1/4-blade orbital sander, according to the preamble of claim 1.
- the sanding plate In conventional orbital sanders, the sanding plate is driven by an eccentric to oscillate sideways, the sanding plate being connected to the sanding device by elastic oscillating legs.
- the swinging legs prevent the rotary movement of the eccentric from being transmitted to the sanding plate and thus form an anti-rotation device for the sanding plate.
- the swinging legs absorb the contact pressure acting on the sanding plate and pass it on to the sanding device.
- the torsion legs should consume as little vibration energy as deformation energy in their torsional deformation in order to save electrical energy for the drive, which is particularly important in the case of battery-operated grinders because of the limited battery capacity.
- the swinging legs are connected to each other by a plastic bridge and form a unitary component, so that all swinging legs are assembled together with the plastic bridge.
- the invention provides a bearing arrangement for the oscillatable mounting of a grinding plate on a grinding device, in which the oscillating legs are arranged individually or in groups of several oscillating legs in several mutually separate modules.
- each module preferably has three oscillating legs, but the individual oscillating legs can also be divided up among the individual modules in a different way.
- each module can also have one, two or four swing legs.
- the elastic connection of the grinding plate to the grinding device does not necessarily have to be made by means of swinging legs, the longitudinal extension of which is considerably greater than their thickness. Rather, it is also possible to use differently designed vibrating bodies, provided that the vibrating bodies form an elastic connection between the grinding plate and the grinding device.
- the bearing arrangement according to the invention can be used not only in a grinding device, but also in a polishing device in which a polishing plate is driven by an eccentric to oscillate sideways.
- the bearing arrangement according to the invention connects the polishing plate so that it can vibrate with the polishing device.
- the individual modules for mounting on the grinding device have a bayonet lock.
- the individual modules are thus preferably attached by plugging in and then moving or rotating the individual modules, which enables assembly without tools.
- the individual modules preferably each have a groove and / or a tongue, so that adjacent modules form a tongue and groove connection in the assembled state.
- This offers the advantage that the strength of the layer according to the invention Despite the division into several modules, the arrangement is just as good as with conventional bearing arrangements with a plastic bridge for connecting the individual swinging legs.
- the individual modules preferably have a mounting body for attachment to the grinding device and a guide body for guiding the grinding plate, the mounting body being connected to the guide body by at least one of the oscillating bodies.
- the guide body with the grinding plate can thus perform relative to the mounting body oscillating movements that are generated for example by an eccentric.
- the guide body for screwing to the grinding plate has a screw receptacle, which can consist, for example, of a simple blind hole, into which a fastening screw can engage.
- the grinding plate is thus fastened by screws which are screwed into the screw receptacle from the workpiece side of the grinding plate through the grinding plate.
- the guide body on its side facing the grinding plate preferably has a projection which engages in a form-fitting manner in a correspondingly adapted fastening receptacle in the grinding plate.
- the projection on the guide body is preferably out of round in order to form an anti-rotation device.
- the mounting body of the bearing arrangement according to the invention is plate-shaped and has at least one cutout on one side edge for a correspondingly adapted spring on the grinding device.
- the individual modules are thus plugged onto the grinder in such a way that the spring on the grinder engages in the associated cutout on the side edge of the module.
- the modules are then moved so that the spring on the grinder no longer lies over the recess, but rather detects the side edge of the mounting body and thereby fixes it.
- the module must then be moved again so that the spring lies over the recess in the side edge of the mounting body, whereupon the module can simply be removed.
- the mounting body has at least one projection which, in the mounted state, forms a frictional connection with a correspondingly adapted receptacle on the grinding device.
- This projection preferably borders directly on the cutout in the side edge of the mounting body, so that when the mounting body is moved, a friction or clamping effect occurs, as a result of which the module is fixed.
- the mounting body on the side facing the grinding device and / or on the side facing away from the grinding device preferably has a spring, which in the assembled state forms a tongue and groove connection with a correspondingly adapted groove on the grinding device.
- the invention is not limited to the bearing arrangement described above, but also includes a complete grinding or polishing device with such a bearing arrangement.
- FIG. 1 shows an orbital sander 10, which is of conventional construction and is briefly described below, in order to then go into the special features of the invention.
- the orbital sander 10 has an electric motor that drives an output shaft 14, the output shaft 14 being additionally rotatably mounted in a ball bearing 16.
- the output shaft 14 has a free end onto which an eccentric sleeve 18 is pressed, so that the eccentric sleeve 18 is fixed in a rotationally fixed manner on the output shaft 14 and is fixed in the axial direction.
- the eccentric sleeve 18 can also be fastened on the output shaft 14 in a different manner, for example by a screw connection.
- the eccentric sleeve 18 thus rotates with the output shaft 14 and is therefore balanced with respect to the output shaft 14 in order to avoid vibrations during operation.
- the eccentric sleeve 18 has at its end on the workpiece side a cup-shaped, cylindrical receptacle for a ball bearing 20 with an inner ring and an outer ring, the receptacle for the ball bearing 20 being arranged eccentrically with respect to the output shaft 14.
- the outer ring of the ball bearing 20 is pressed into the receptacle, while a sleeve-shaped receiving part 22 is pressed into the inner ring of the ball bearing 20.
- the sleeve-shaped receiving part 22 serves to fasten a grinding plate 24 and for this purpose has an internal thread 26 at its tool-side end, as can be seen in particular from FIG. 2.
- the grinding plate 24 has a mounting hole 28 in the central region for fastening to the grinding device 10, through which a central fastening screw 30 can be screwed into the internal thread 26 of the receiving part 22. Fastening the grinding plate 24 to the grinding device 10 by means of a screw connection thus enables the grinding plate 24 to be exchanged in a simple manner, so that after the selection of the corresponding grinding plate 24, a grinding or contour grinding is optionally possible with the grinding device 10.
- the grinding device 10 has a plurality of elastic oscillating legs 32 made of polyoxymethylene (POM), which guide a guide element 34 in a rotationally fixed but laterally flexible manner.
- the swinging legs 32 can, however, also consist of other elastic and resistant materials, which do not show any material fatigue even during long-term operation and frequent deformations, polyamide (PA) and polypropylene (PP) being mentioned as examples.
- the guide element 34 engages in a circumferential collar 36 formed on the upper side of the grinding plate 24, so that the freedom of movement of the grinding plate 24 is restricted to plane-parallel movements.
- the circumferential collar 36 of the grinding plate 24 is therefore non-circular and approximately triangular, whereby the grinding plate 24 is secured against rotation. A rotation of the output shaft 14 thus leads to plane-parallel grinding movements of the grinding plate 24 due to the eccentric mounting of the receiving part 22 in the eccentric sleeve 18.
- the grinding device 10 has a housing 38, which closes on its underside by a sealing lip 40 with the 0 top of the grinding plate 24.
- FIGS. 2a to 2c and 3a and 3b show a module 42 of a four-part bearing arrangement, which can be used with an orbital sander similar to the orbital sander 10 instead of the guide element 34 with the oscillating legs 32.
- the module 42 has a mounting plate 44 and a guide plate 46 which are connected to one another by three elastic swinging legs 48, the mounting plate 44, the guide plate 46 and the swinging legs 48 being made of plastic. Due to their elasticity, the three swinging legs 48 allow a lateral swinging movement of the grinding plate 24, which is driven by the eccentric sleeve 18.
- the guide plate 46 In the assembled state, the guide plate 46 is connected to the grinding plate 24.
- the guide plate 46 has a screw receptacle 50, into which a fastening screw engages in the assembled state and which connects the grinding plate 24 to the guide plate 46 by a screw connection.
- the guide plate 46 has a projection 52 on the side facing the grinding plate 24, which in the assembled state fits into a receptacle in FIG engages the grinding plate 24 to establish a positive connection between the grinding plate 24 and the guide plate 46.
- the projection 52 is out of round and has two flattened sides, whereby an anti-rotation device is formed.
- the mounting plate 44 of the module 42 is connected to the housing 38 of the grinding device 10 in the assembled state, as can be seen from FIGS. 3a and 3b.
- the connection between the mounting plate 44 and the housing 38 of the sander 10 is in this case by a bayonet catch, so that a simple assembly and disassembly of the module 42 without • tool is possible.
- the mounting plate 44 has two cutouts 54.1, 54.2 on one side edge, into which two springs 56.1, 56.2 engage in the mounting position shown in FIG. 3a, so that the module 42 can be inserted into the housing 38 on the workpiece side.
- the springs 56.1, 56.2 slide through the associated cutouts 54.1, 54.2 on the mounting plate 44.
- the module 42 is then pushed from the assembly position shown in FIG. 3a into the end position shown in FIG. 3b, the springs 56.1, 56.2 in the end position of the module 42 next to the cutouts 54.1, 54.2 on the Mount the mounting plate 44 and thereby clamp the mounting plate 44.
- a projection 58 is formed on the side of the mounting plate 44 facing the spring 56.1 at the edge of the recess 54.1 and presses against the spring 54.1 in the end position of the module 42.
- two springs 60, 62 are formed on the mounting plate 44, which guide the mounting plate 44 in the assembled state, the spring 60 engaging in a correspondingly adapted groove in the housing 38 of the grinding device 10.
- the mounting plate 44 of the module 42 has a wedge-shaped groove 64, in which a correspondingly adapted tongue of an adjacent module engages in the assembled state, so that the individual modules of the bearing arrangement according to the invention are mechanically connected to one another and are nevertheless mounted individually and therefore with a small space requirement can .
- the bearing arrangement according to the invention consists of four modules 42, each of which is constructed mirror-inverted and either has the groove 64 or a correspondingly adapted tongue.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/516,585 US7207872B2 (en) | 2002-11-06 | 2003-07-11 | Bearing arrangement for vibrationally mounting a grinding disk in a grinder |
EP03810368A EP1581365B1 (de) | 2002-11-06 | 2003-07-11 | Lageranordnung zur schwingf higen lagerung eines schleiftell ers an einem schleifger t |
JP2004549043A JP2006504540A (ja) | 2002-11-06 | 2003-07-11 | 研削器具に研削ディスクを振動可能に支承するための支承装置 |
DE50312600T DE50312600D1 (de) | 2002-11-06 | 2003-07-11 | Lageranordnung zur schwingf higen lagerung eines schleiftell ers an einem schleifger t |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10251556.5 | 2002-11-06 | ||
DE10251556A DE10251556A1 (de) | 2002-11-06 | 2002-11-06 | Lageranordnung zur schwingfähigen Lagerung eines Schleiftellers an einem Schleifgerät |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004041478A1 true WO2004041478A1 (de) | 2004-05-21 |
Family
ID=32115266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2003/002337 WO2004041478A1 (de) | 2002-11-06 | 2003-07-11 | Lageranordnung zur schwingfähigen lagerung eines schleiftellers an einem schleifgerät |
Country Status (6)
Country | Link |
---|---|
US (1) | US7207872B2 (de) |
EP (1) | EP1581365B1 (de) |
JP (1) | JP2006504540A (de) |
CN (1) | CN100522475C (de) |
DE (2) | DE10251556A1 (de) |
WO (1) | WO2004041478A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005009739A1 (de) | 2005-03-03 | 2006-09-07 | Robert Bosch Gmbh | Handwerkzeugmaschine |
US8100745B2 (en) * | 2007-03-16 | 2012-01-24 | Black & Decker Inc. | Low vibration sander with a flexible top handle |
JPWO2014132745A1 (ja) * | 2013-02-28 | 2017-02-02 | 日立工機株式会社 | 動力工具 |
JP6342252B2 (ja) * | 2014-07-28 | 2018-06-13 | 京セラインダストリアルツールズ株式会社 | サンダ |
CN108067985B (zh) * | 2016-11-08 | 2023-11-07 | 苏州宝时得电动工具有限公司 | 砂光机 |
CN107498461B (zh) * | 2017-09-26 | 2023-12-19 | 广州市锐恒科技有限公司 | 一种高效抛光研磨复合主轴 |
CA3054036A1 (en) * | 2018-12-28 | 2020-06-28 | Virtual Machines Inc. | Method and system for producing abrasive products |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1216238A (en) * | 1968-05-17 | 1970-12-16 | Black & Decker Ltd | Improvements in or relating to power-driven abrasive tools |
US3849943A (en) * | 1973-02-26 | 1974-11-26 | Rockwell International Corp | Power operated sanding machine |
US3862520A (en) * | 1974-02-14 | 1975-01-28 | Singer Co | Support assembly for a portable surface-treating machine |
US3918214A (en) * | 1974-10-02 | 1975-11-11 | Mc Graw Edison Co | Vibrating sander |
US4397120A (en) * | 1981-09-01 | 1983-08-09 | Black & Decker Inc. | Suspension system for an abrading tool |
EP1166963A1 (de) * | 2000-06-21 | 2002-01-02 | Skil Europe B.V. | Flachschleifer mit austauschbarem Schleifsohlenelement |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2848850A (en) * | 1956-08-10 | 1958-08-26 | Rotex Company | Electric sanders |
US2885833A (en) * | 1957-06-19 | 1959-05-12 | Oster Mfg Co John | Hand held sanding and abraiding machine |
US3336702A (en) * | 1964-02-28 | 1967-08-22 | Black & Decker Mfg Co | Oscillating platen for abrading tool |
US3345784A (en) * | 1964-12-29 | 1967-10-10 | Rockwell Mfg Co | Orbital finishing sander |
US3815292A (en) * | 1972-08-21 | 1974-06-11 | A Hutchins | Structure and manufacture of abrading tool having suction system |
JPS5410625Y2 (de) * | 1974-12-09 | 1979-05-16 | ||
JPS52135592U (de) * | 1976-04-09 | 1977-10-14 | ||
US4095375A (en) * | 1977-03-16 | 1978-06-20 | The Singer Company | Support assembly for a portable surface-treating machine |
JPS56126350U (de) * | 1980-02-21 | 1981-09-25 | ||
JPS607953U (ja) * | 1983-06-27 | 1985-01-19 | リョービ株式会社 | 研摩機の集塵装置 |
US4837981A (en) * | 1987-07-06 | 1989-06-13 | Ryobi Limited | Power operated sanding machine |
JPH0683952B2 (ja) * | 1989-09-05 | 1994-10-26 | 株式会社マキタ | コードレス研摩機 |
DE59410331D1 (de) * | 1994-02-03 | 2003-11-27 | Bosch Gmbh Robert | Handwerkzeugmaschine zur Flächenbearbeitung |
JP3634995B2 (ja) * | 1999-12-07 | 2005-03-30 | 株式会社マキタ | サンダ |
GB2380151B (en) * | 2001-07-20 | 2004-09-22 | Black & Decker Inc | Oscillating hand tool |
DE10160265A1 (de) * | 2001-12-07 | 2003-06-18 | Bosch Gmbh Robert | Handschwingschleifmaschine |
-
2002
- 2002-11-06 DE DE10251556A patent/DE10251556A1/de not_active Withdrawn
-
2003
- 2003-07-11 US US10/516,585 patent/US7207872B2/en not_active Expired - Fee Related
- 2003-07-11 WO PCT/DE2003/002337 patent/WO2004041478A1/de active Application Filing
- 2003-07-11 CN CNB038249464A patent/CN100522475C/zh not_active Expired - Fee Related
- 2003-07-11 EP EP03810368A patent/EP1581365B1/de not_active Expired - Lifetime
- 2003-07-11 JP JP2004549043A patent/JP2006504540A/ja active Pending
- 2003-07-11 DE DE50312600T patent/DE50312600D1/de not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1216238A (en) * | 1968-05-17 | 1970-12-16 | Black & Decker Ltd | Improvements in or relating to power-driven abrasive tools |
US3849943A (en) * | 1973-02-26 | 1974-11-26 | Rockwell International Corp | Power operated sanding machine |
US3862520A (en) * | 1974-02-14 | 1975-01-28 | Singer Co | Support assembly for a portable surface-treating machine |
US3918214A (en) * | 1974-10-02 | 1975-11-11 | Mc Graw Edison Co | Vibrating sander |
US4397120A (en) * | 1981-09-01 | 1983-08-09 | Black & Decker Inc. | Suspension system for an abrading tool |
EP1166963A1 (de) * | 2000-06-21 | 2002-01-02 | Skil Europe B.V. | Flachschleifer mit austauschbarem Schleifsohlenelement |
Also Published As
Publication number | Publication date |
---|---|
DE50312600D1 (de) | 2010-05-20 |
JP2006504540A (ja) | 2006-02-09 |
EP1581365B1 (de) | 2010-04-07 |
CN100522475C (zh) | 2009-08-05 |
CN1694780A (zh) | 2005-11-09 |
US20050164615A1 (en) | 2005-07-28 |
EP1581365A1 (de) | 2005-10-05 |
US7207872B2 (en) | 2007-04-24 |
DE10251556A1 (de) | 2004-05-19 |
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