EP1361934A1 - Einsatzwerkzeug mit einer rotierend antreibbaren, scheibenförmigen nabe - Google Patents
Einsatzwerkzeug mit einer rotierend antreibbaren, scheibenförmigen nabeInfo
- Publication number
- EP1361934A1 EP1361934A1 EP01984708A EP01984708A EP1361934A1 EP 1361934 A1 EP1361934 A1 EP 1361934A1 EP 01984708 A EP01984708 A EP 01984708A EP 01984708 A EP01984708 A EP 01984708A EP 1361934 A1 EP1361934 A1 EP 1361934A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hub
- insert tool
- tool according
- abrasive
- recesses
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/16—Bushings; Mountings
Definitions
- the invention is based on an insert tool with a rotationally drivable, disk-shaped hub according to the preamble of claim 1.
- Disc-shaped insert tools e.g. grinding or cutting discs for angle grinders, usually consist entirely of bonded abrasive and have a central circular recess, via which the insert tool can be non-positively fastened in the initial direction with a clamping nut and positively in the axial direction on an angle grinder spindle.
- Both insert tools are known which have a reinforcement made of sheet metal in the region of the recess, and tools without a reinforcement.
- the invention is based on an insert tool with a rotationally drivable, disk-shaped hub, to which an abrasive is fastened in the radially outer region.
- the hub be designed with a bending stiffness that changes in the radial direction.
- An advantageous transition between the abrasive and the hub can be achieved and overall a harmonious bending line can be achieved.
- Advantageous cohesion between the abrasive and the hub can be achieved and detachment when attaching the insert tool, for example on a spindle of an angle grinder, and while working can be reliably avoided.
- a bending stiffness or bending line can be adapted to a desired course in a structurally simple manner by designing recesses made in the radially outer region of the hub.
- the bending stiffness of the hub can be weakened in specific areas.
- the recesses can have various shapes which appear useful to the person skilled in the art.
- the recesses can be designed as slots with a constant width and / or with a radially inwardly continuously or gradually decreasing width, as a result of which the bending stiffness decreases radially outwards due to the radially outwardly decreasing hub material.
- At least one recess in the radially inner rich has a greater width than in the radially outer region, as a result of which an advantageously large fastening area is provided in the radially outer region and a type of spring region can be achieved in the radially inner region adjoining it.
- the recesses are advantageously designed to be radially open to the outside, which advantageously allows segments which can be deflected largely independently of one another. In principle, however, the recesses could also be designed to be closed radially outward.
- the hub is advantageously inexpensive and environmentally friendly made from sheet metal, in particular sheet steel.
- the abrasive which is often difficult to recycle, can be completely used up and the hub can be easily recycled.
- other hub materials are also conceivable, such as plastics, ceramic materials, etc.
- the solution according to the invention is particularly advantageously applicable to abrasives that require a cutting, grinding, roughing and / or form cutting disc.
- the abrasive of a thin cutting disc has great flexibility compared to a sheet metal hub without the recesses mentioned.
- the adapted bending line of the sheet metal hub means that detachment of the abrasive due to axially acting forces can be reliably avoided.
- the solution according to the invention can also be used in application tools in which the abrasive is formed by an abrasive paper or the like.
- the hub is at least partially covered on both sides by at least one layer of the abrasive, for example by an abrasive fabric layer or glass fiber mats etc., whereby the connection between the hub and the abrasive can be improved.
- a positive connection can be achieved in both axial directions.
- connection can be improved in that the abrasive and the hub are connected in a form-fitting manner at least in the direction of rotation via connecting means.
- Large drive torques can be safely transferred from the hub to the abrasive.
- a positive connection in the axial direction is also conceivable, for example by means of angled and / or cranked projections etc. engage in or through the abrasive in the axial direction and advantageously in a stamping process, for example jointly sam with other recesses to which the hub can be formed.
- an axial positive locking can take place cost-effectively when bending the molded projections or frames reaching through the abrasive outwards or inwards when the abrasive is pressed.
- a connection between the hub and the abrasive can be further improved by subjecting the abrasive and the hub together to at least one heat process during a manufacturing process of the abrasive, and / or the abrasive in addition to a non-positive and / or positive connection via a material connection with the Hub is connected, such as in particular via an adhesive connection.
- the integral connection can be made after or during the manufacturing process of the abrasive. If the manufacturing process of the abrasive is used to connect the hub and the abrasive, additional work steps can be saved and an overall rational manufacturing process of the insert tool can be achieved. In particular, a gluing process can be easily integrated into the manufacturing process of the abrasive, but other cohesive connections are also conceivable, such as soldered and / or welded connections, etc.
- the solution according to the invention can be used with insert tools which are fastened on a spindle by means of a clamping nut and particularly advantageously with hubs which, in addition to a central recess, have recesses for fastening via a quick-action clamping system.
- assembly forces can occur in the axial direction can be taken advantage of via a harmonic bending line.
- FIG. 3 is an enlarged view of a hub without abrasive from above
- Fig. 4 shows the hub of Fig. 3 in a side view
- FIG. 5 shows an alternative to FIG. 3.
- Fig. 1 shows an angle grinder 36 from above with an electric motor, not shown, mounted in a housing 38.
- the angle grinder 36 is a first, in Housing 38 on the side facing away from an insert tool, which extends in the longitudinal direction and can be guided via a second handle 44 which is attached to a gear housing 42 in the region of the insert tool and extends in the longitudinal direction.
- FIG. 2 shows the insert tool from FIG. 1 in the disassembled state.
- the insert tool has a rotatably drivable, disk-shaped hub 10 made of sheet steel, to which an abrasive 14 forming a grinding wheel is fastened in the radially outer region.
- the abrasive 14 is essentially composed of glass fiber mats, abrasives and binders, which are pressed together to form a solid disc, the binder having been cured in a heat process.
- the hub 10 is designed with a changing bending stiffness in the radial direction, the hub 10 in its radially outer region being deliberately weakened by slot-shaped recesses 16 in order to adapt the bending stiffness.
- the recesses 16 are designed to be open radially outwards, which advantageously results in segments which can be deflected largely independently of one another.
- the recesses 16 have a constant width and protrude radially inwards to just before an area in which the recesses 30, 32 are made for fastening the insert tool via a quick-action clamping system on an angle grinder spindle.
- a circular recess 28 for centering the insert tool is made in the central region of the hub 10.
- the hub 10 is covered on both sides by at least one layer 22, 24 of the abrasive 14, the abrasive 14 being arranged in an annular recess with essentially its entire thickness on a side 48 facing the angle grinder 36, so that the hub 10 and the abrasive 14 advantageously in the direction of angle grinding r 36 in a common plane.
- the hub 10 On a side 34 facing away from the angle grinder 36, a layer 22 of the abrasive 14 formed by a glass fiber mat covers the hub 10 radially inward.
- the abrasive 14 and the hub 10 are positively connected in the direction of rotation via connecting means 26 (FIG. 4).
- the connecting means 26 are formed by projections which extend in the axial direction and are formed on the hub 10 and which engage axially in or through the grinding means 14.
- the projections forming the connecting means 26 are formed with the recesses 16, 28, 30, 32 in a common stamping process.
- an axial form-fit particularly in the case of thin abrasives, could be achieved by bending molded projections or frames which grip through the abrasive outwards or inwards at low cost when the abrasive is pressed.
- the hub 10 and the abrasive 14 are subjected to a common heat process, with a material connection between the Abrasive 14 and the hub 10, namely an adhesive bond is cured.
- FIG. 12 An alternative hub 12 is shown in FIG. Components that remain essentially the same are fundamentally numbered with the same reference numerals. Furthermore, with regard to the same features and functions, reference can be made to the description of the exemplary embodiment in FIGS. 2 and 3.
- the hub 12 has recesses 18, 20 which are designed to be open radially outwards and which have different widths in the radial direction.
- the recesses 18 are T-shaped and have a greater width in the radially inner region than in the radially outer region, whereas the recesses 20 are V-shaped and have a decreasing width radially inwards. 4, the recesses 18 and 20 are combined with one another, but it is also conceivable to provide the recesses 18 or 20 exclusively on one hub each.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10106980A DE10106980A1 (de) | 2001-02-15 | 2001-02-15 | Einsatzwerkzeug mit einer rotierend antreibbaren, scheibenförmigen Nabe |
DE10106980 | 2001-02-15 | ||
PCT/DE2001/004757 WO2002070205A1 (de) | 2001-02-15 | 2001-12-14 | Einsatzwerkzeug mit einer rotierend antreibbaren, scheibenförmigen nabe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1361934A1 true EP1361934A1 (de) | 2003-11-19 |
EP1361934B1 EP1361934B1 (de) | 2006-09-06 |
Family
ID=7674101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01984708A Expired - Lifetime EP1361934B1 (de) | 2001-02-15 | 2001-12-14 | Einsatzwerkzeug mit einer rotierend antreibbaren, scheibenförmigen nabe |
Country Status (8)
Country | Link |
---|---|
US (1) | US7097548B2 (de) |
EP (1) | EP1361934B1 (de) |
JP (1) | JP2004518549A (de) |
KR (1) | KR20030014666A (de) |
CN (1) | CN1217768C (de) |
DE (2) | DE10106980A1 (de) |
TW (1) | TW576775B (de) |
WO (1) | WO2002070205A1 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10360246A1 (de) * | 2003-12-20 | 2005-07-28 | Robert Bosch Gmbh | Einsatzwerkzeug für eine Werkzeugmaschine |
USD619152S1 (en) | 2009-12-18 | 2010-07-06 | Techtronic Power Tools Technology Limited | Adapter |
USD623034S1 (en) | 2009-12-18 | 2010-09-07 | Techtronic Power Tools Technology Limited | Tool arbor |
USD651062S1 (en) | 2010-09-29 | 2011-12-27 | Milwaukee Electric Tool Corporation | Tool interface for an accessory |
USD646542S1 (en) | 2010-09-29 | 2011-10-11 | Milwaukee Electric Tool Corporation | Accessory interface for a tool |
USD653523S1 (en) | 2010-09-29 | 2012-02-07 | Milwaukee Electric Tool Corporation | Adapter for a tool |
USD652274S1 (en) | 2010-12-14 | 2012-01-17 | Techtronic Power Tools Technology Limited | Universal interface for accessory blades |
USD651876S1 (en) | 2010-12-14 | 2012-01-10 | Techtronic Power Tools Technology Limited | Universal interface for accessory blades |
USD651875S1 (en) | 2010-12-14 | 2012-01-10 | Techtronic Power Tools Technology Limited | Universal interface for accessory blades |
USD651877S1 (en) | 2010-12-14 | 2012-01-10 | Techtronic Power Tools Technology Limited | Universal interface for accessory blades |
USD651878S1 (en) | 2010-12-14 | 2012-01-10 | Techtronic Power Tools Technology Limited | Universal interface for accessory blades |
USD651874S1 (en) | 2010-12-14 | 2012-01-10 | Techtronic Power Tools Technology Limited | Universal interface for accessory blades |
USD694598S1 (en) | 2012-06-25 | 2013-12-03 | Techtronic Power Tools Technology Limited | Universal interface for accessory blades |
USD694599S1 (en) | 2012-06-25 | 2013-12-03 | Techtronic Power Tools Technology Limited | Universal interface for accessory blades |
USD694076S1 (en) | 2012-06-25 | 2013-11-26 | Techtronic Power Tools Technology Limited | Universal interface for accessory blades |
USD694597S1 (en) | 2012-06-25 | 2013-12-03 | Techtronic Power Tools Technology Limited | Universal interface for accessory blades |
USD694596S1 (en) | 2012-06-25 | 2013-12-03 | Techtronic Power Tools Technology Limited | Universal interface for accessory blades |
DE102013007234A1 (de) * | 2013-04-26 | 2014-10-30 | Lemken Gmbh & Co. Kg | Doppelscheibenschar |
US9555554B2 (en) | 2013-05-06 | 2017-01-31 | Milwaukee Electric Tool Corporation | Oscillating multi-tool system |
CN111730508B (zh) * | 2020-07-02 | 2021-05-14 | 丽水学院 | 一种磨床用自适应滑块沟槽磨削工具及使用方法 |
CN113084687A (zh) * | 2021-04-13 | 2021-07-09 | 汪闰 | 一种新能源汽车生产用轮毂抛光设备 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2652321A (en) * | 1950-09-07 | 1953-09-15 | Norton Co | Grinding wheel |
US3526999A (en) * | 1968-08-08 | 1970-09-08 | Leopold Jagers | Cutting blades |
US3667169A (en) * | 1970-04-27 | 1972-06-06 | Norton Co | Abrasive finishing article |
US3667167A (en) * | 1971-01-26 | 1972-06-06 | Landis Tool Co | Work driving device for automatic camshaft grinding machine |
CH577365A5 (en) * | 1973-08-22 | 1976-07-15 | Swarovski Tyrolit Schleif | High speed grinding disc - has zones of increased strength adjacent to and extending from hub bore |
US4251955A (en) * | 1979-01-29 | 1981-02-24 | The Warner & Swasey Company | Hub assembly |
JPS63300872A (ja) * | 1987-05-30 | 1988-12-08 | Sanwa Daiyamondo Kogyo Kk | 超砥粒カッタ− |
DE3728233A1 (de) | 1987-08-25 | 1989-03-16 | Tusch Kg Diamant | Trennscheibe, insbes. diamant-trennscheibe |
US4962748A (en) * | 1987-11-09 | 1990-10-16 | Schweickhardt Karl B | Diamond abrasive saw blade and method of dry sawing concrete |
DE4430229A1 (de) * | 1994-08-25 | 1996-02-29 | Eisenblaetter Gerd Gmbh | Lamellenschleifscheibe |
US5839423A (en) * | 1997-03-13 | 1998-11-24 | Jones; Leon D. | Cutting disc |
IT1297505B1 (it) * | 1997-12-04 | 1999-12-17 | Tecno Sinter Srl | Utensile troncatore e metodo per la sua realizzazione |
US6136143A (en) * | 1998-02-23 | 2000-10-24 | 3M Innovative Properties Company | Surface treating article including a hub |
DE29806114U1 (de) | 1998-04-03 | 1998-06-04 | DHV Jürgen Hilk GmbH, 35719 Angelburg | Trennscheibe |
JP3444819B2 (ja) * | 1999-07-05 | 2003-09-08 | 株式会社ノリタケスーパーアブレーシブ | 回転円盤砥石 |
-
2001
- 2001-02-15 DE DE10106980A patent/DE10106980A1/de not_active Ceased
- 2001-12-14 EP EP01984708A patent/EP1361934B1/de not_active Expired - Lifetime
- 2001-12-14 DE DE50110967T patent/DE50110967D1/de not_active Expired - Lifetime
- 2001-12-14 JP JP2002569355A patent/JP2004518549A/ja not_active Withdrawn
- 2001-12-14 WO PCT/DE2001/004757 patent/WO2002070205A1/de active IP Right Grant
- 2001-12-14 KR KR1020027013630A patent/KR20030014666A/ko not_active Application Discontinuation
- 2001-12-14 US US10/257,181 patent/US7097548B2/en not_active Expired - Lifetime
- 2001-12-14 CN CN018079520A patent/CN1217768C/zh not_active Expired - Lifetime
- 2001-12-25 TW TW090132156A patent/TW576775B/zh not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO02070205A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN1217768C (zh) | 2005-09-07 |
JP2004518549A (ja) | 2004-06-24 |
US7097548B2 (en) | 2006-08-29 |
WO2002070205A1 (de) | 2002-09-12 |
US20030162487A1 (en) | 2003-08-28 |
TW576775B (en) | 2004-02-21 |
DE50110967D1 (de) | 2006-10-19 |
KR20030014666A (ko) | 2003-02-19 |
EP1361934B1 (de) | 2006-09-06 |
CN1422201A (zh) | 2003-06-04 |
DE10106980A1 (de) | 2002-09-05 |
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Inventor name: SCHULZE, WILHELM Inventor name: HOELZL, CHRISTOF Inventor name: KRONDORFER, HARALD Inventor name: HUBER, JOHANN Inventor name: SCHADOW, JOACHIM Inventor name: HECKMANN, MARKUS |
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Inventor name: HECKMANN, MARKUS Inventor name: HOELZL, CHRISTOF Inventor name: SCHULZE, WILHELM Inventor name: HUBER, JOHANN Inventor name: SCHADOW, JOACHIM Inventor name: KRONDORFER, HARALD |
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