WO2005061179A1 - Einsatzwerkzeug für eine werkzeugmaschine - Google Patents
Einsatzwerkzeug für eine werkzeugmaschine Download PDFInfo
- Publication number
- WO2005061179A1 WO2005061179A1 PCT/EP2004/052875 EP2004052875W WO2005061179A1 WO 2005061179 A1 WO2005061179 A1 WO 2005061179A1 EP 2004052875 W EP2004052875 W EP 2004052875W WO 2005061179 A1 WO2005061179 A1 WO 2005061179A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hub
- opening
- insert tool
- stop
- tool
- Prior art date
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
-
- 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
- B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
-
- 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
- B24B45/00—Means for securing grinding wheels on rotary arbors
- B24B45/006—Quick mount and release means for disc-like wheels, e.g. on power tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/16—Bushings; Mountings
Definitions
- the invention relates to an insert tool for a machine tool according to the preamble of claim 1.
- An insert tool for a machine tool is known from WO 03/097299, which comprises a hub with openings for fastening the hub on a driving flange of the machine tool.
- the hub is plugged onto a centering collar, with three fasteners designed as hooks reaching through three openings in the hub.
- the hooks overlap the hub and hold it in the axial direction on the driving flange.
- retaining bolts snap into recesses provided for this.
- the insert tool is now secured in the tangential direction by the retaining bolts and held in the axial direction by the fastening hooks on the driving flange.
- the retaining bolts are pressed out of the recesses by actuating a release button, as a result of which the insert tool and with it the hub can be turned back in the tangential direction, also referred to as the circumferential direction.
- the mounting hooks can be disengaged from the hub and the insert tool can be removed from the drive flange.
- the invention is based on an insert tool for a machine tool, which has a hub with at least one opening for carrying out a fastening means, via which the hub can be clamped onto a driving flange of the machine tool connected to a drive shaft, the opening having a holding area and a release area has and the release area includes a stop to limit a release movement of the fastener.
- the opening have a convex section adjacent to the stop.
- the hub With a stop, the hub can be brought into a very exact position relative to the driving flange when the fastener strikes the stop. This allows the hub and, with it, the insert tool to be pulled off the catch flange without snagging.
- a breakthrough space can be created in addition to the stop, through which a cantilevered element of the fastening means, which can be used to securely hold the hub on the driving flange, can be passed without snagging.
- a reliable, simple solution sen of the insert tool from the driving flange can be achieved in connection with a secure holding of the hub and a simple and inexpensive manufacture of the fastener.
- the convex section can be arranged in the immediate vicinity of the stop or in an indirect environment of the stop. The distance between the convex section and the stop is a maximum of half the distance between the stop and the holding area of the opening.
- the convex section expediently adjoins a straight section of the opening forming the stop, as a result of which a squeegee-free release of the hub can be achieved with a particularly simple manufacture of the hub and the fastening means.
- the opening can have a first and a second area, the second area being wider in the radial direction than the first area.
- the release movement of the fastener can be described in particular as a movement of the fastener directed in the tangential direction from the holding area into the release area.
- the opening comprises a section which is at least 2 mm, in particular at least 3 mm, further away from the holding area in the tangential direction than the stop.
- a protruding element of the fastening means can pass through this area. leads, which can ensure a great stability of the connection of the hub with the driving flange.
- the stop is oriented rotated by an angle between 2 ° and 10 °, in particular between 4 ° and 7 °, against a direction of rotation of the release movement of the fastening means relative to the radial direction.
- the hub is rotated relative to the driving flange and relative to the fastening means.
- the fastening means performs a releasing movement in a releasing direction relative to the stop.
- the release movement takes place in a direction of rotation, for example clockwise, aims towards the stop and is limited by it.
- the opening has a convex, in particular radially inner section which is oriented in the tangential direction.
- the fastening means can be guided from the releasing area into the holding area and back without elastic deformation, as a result of which the fastening movement or releasing movement can be made very smoothly.
- the elongated holes are expediently each at least substantially rectangular, as a result of which a particularly reliable securing against reverse installation can be achieved.
- the rectangularity is preserved if the elongated holes are formed from straight sections which are connected to one another by radii.
- a section that is oriented in the tangential direction and is therefore curved is also referred to as straight.
- a simple attachment and detachment of the insert tool on or from the driving flange by rotating the hub can be achieved if the elongated holes are each aligned in the tangential direction.
- the hub comprises holding means for fixing the hub in the tangential direction.
- Such holding means can be openings or shapes into which fastening means can be introduced for tangentially securing the insert tool.
- These holding means are expediently separated from the opening, as a result of which a great stability of both the holding means and the opening can be achieved.
- the hub contain a centering opening for centering the hub. Centering results in prepositioning of the insert tool on the driving flange, by means of which the fastening means can be simply carried out through the opening.
- a coding and a definition of a rotational position of the insert tool when it is attached to a centering collar can be achieved if the centering opening has at least one radial recess.
- This recess encompasses, for example, a code elevation on the driving flange, which can be used to prevent impermissible insertion tools from being attached to the driving flange.
- the radial recess in the centering opening can be designed such that the fastening means can be passed directly through the opening when the recess engages around the elevation.
- FIG. 1 shows an angle grinder with a cutting disc
- FIG. 2 shows a hub of the cutting disc over a driving flange of the angle grinder
- FIG. 3 shows a top view of the hub from FIG. 2
- FIG. 4 shows the hub plugged onto the driving flange in a detailed view
- 5 shows the hub fastened on the driving flange in a detailed view
- FIG. 6 shows a plan view of an opening in a hub and a fastening means.
- Figure 1 shows an angle grinder 2 from above with an electric motor mounted in a housing 4, not shown.
- the angle grinder 2 can be guided via a first handle 6 and a second handle 8, the first handle 6 being fastened to a gear housing 10 in the area of an insert tool 12 and the second handle 8 extending in the longitudinal direction and in the housing 4 on one of the Insert tool 12 facing away is integrated.
- the insert tool 12 can be driven in the direction of rotation 14 via the electric motor, a transmission (not shown) and a drive shaft (also not shown).
- a hub 16 of the insert tool 12 is visible.
- This hub is shown in Figure 2.
- Abrasive body 18 of the insert tool 12 is arranged, which is fastened to the hub 16 with the aid of fastening elements 20.
- the hub 16 of the insert tool 12, which is designed as a cutting disc, is shown in an exploded view in FIG. 2 in perspective above a driving flange 22 of the angle grinder 2.
- This driving flange 22 comprises a centering collar 24, onto which the hub 16 with a centering opening 26 can be attached.
- the radially innermost part of the hub 16 rests on three coding bumps 28 which extend radially outward from the centering collar 24.
- the hub 16 lying on these coding elevations 28 can be rotated in the tangential direction 30 until three radial recesses 32 overlap the three coding elevations 28.
- the hub 16 - and with it the entire insert tool 12 - falls somewhat lower until it comes to rest on three locking bolts 36 with its inner plate 34.
- These three locking bolts 36 are spring-loaded and can be pressed down by an operator of the angle grinder 2 by pressing the insert tool 12.
- the lower plate 34 of the hub 16 can be pressed down onto a bottom 38 of the driving flange 22, as a result of which fastening means 40 designed as hooks are passed through openings 42 in the lower plate 34 of the hub 16.
- the hub 16 can now be rotated clockwise, as a result of which a radially innermost region 44 of the lower plate 34 can be passed under the coding elevations 28.
- the breakthroughs 42 each The adjacent holding area 46 of the lower plate 34 is pushed under an obliquely aligned ramp element 48 of the fastening means 40, the fastening means 40 being pulled slightly upwards against the force of a prestressed spring (not shown).
- the holding area 46 is pushed under a holding element 50 which is aligned parallel to the bottom 38 of the driving flange 22 and which presses the hub 16 onto the bottom 38 with the aid of the prestressed spring (not shown).
- the locking bolts 36 come into congruence with pot-like depressions 52 of the hub 16 and snap into these depressions 52 due to a rapid rise.
- the depressions 52 are designed as formations of the lower plate 34, so that they can be seen in FIG. 2 as essentially cylindrical elevations.
- the hub 16 and with it the entire insert tool 12 are now fixed in the tangential direction 30 by the locking bolts 36 in the pot-like recesses 52 and held in the axial direction by the spring-loaded holding elements 50.
- FIG. 3 shows the hub 16 of the insert tool 12 in a plan view.
- the hub 16 comprises three identically designed openings 42 and three identical holding means designed as pot-like depressions 52, which protrude from the plane of the drawing in a plan view.
- the openings 42 are designed in the form of two elongated holes connected to one another, which are aligned in the tangential direction 30 and parallel to one another.
- the elongated holes are each essentially rectangular.
- the openings 42 each include a holding area 54 and a release area 56. If an attachment means 40 is arranged in the release area 56, the attachment means 40 can be passed through the aperture 42 for attaching or detaching the hub 16. If the hub 16 is in the state in which it is fastened on the driving flange 22, a web 58 of the fastening means 40 is arranged in the holding area 54, and the holding element 50 and at least part of the ramp element 48 cover the holding area 46 of the lower one Sheet 34 of the hub 16.
- the opening 42 comprises a radially inner section 78 which is oriented in the tangential direction.
- the web 58 can be guided along this section 78 without being deflected in the process.
- FIG. 4 shows a top view of a fastening means 40 passed through an opening 42 and a section of the hub 16.
- the hub 16 is in such a position relative to the centering collar 24 that the recesses 32 in the lower plate 34 are in register with the coding elevations 28 of the centering collar 24.
- the hub can 16 are pressed downward in the axial direction in the direction of the base 38, as a result of which the ramp element 48 and the holding element 50 of the fastening means 40 are passed through the release area 56.
- the hub 16 rotates in the direction indicated by arrows 60, the locking bolts 36 come into alignment with the depressions 52, and the web 58 comes into the holding area 54, as shown in FIG. 5.
- the hub 16 is released from the driving flange 22 by actuating an actuation button, not shown, by means of which the locking bolts 36 are pressed downward and out of the recesses 52.
- the hub 16 can now be rotated counterclockwise in accordance with an arrow 62 (FIG. 5), as a result of which the fastening means 40 moves into the release area 56 in a release movement in the release direction 64.
- the release direction is parallel to the tangential direction 30 and clockwise.
- the release movement in the release direction 64 can be carried out by an operator of the angle grinder 2 until the web 58 of the fastening means 40 strikes a stop 66 of the opening 42. In this position, the recess 32 is aligned with the coding elevation 28 (FIG. 4), so that the hub 16 can be lifted off the driving flange 22.
- the stop 66 is not aligned completely in the radial direction, but is oriented at an angle 67 of 95.5 ° to the release direction or tangential direction 30 and thus rotated by an angle of 5.5 ° counterclockwise to the radial direction.
- the right of the two side walls of the web 58 aligned parallel to one another in FIG. 5 beats hereby flat against the stop 66.
- the stop 66 is part of a bulge 68 of the lower plate 34 of the hub 16. The stop 66 or the bulge 68 limits a release movement of the hub 16.
- the bulge 68 protrudes by an offset distance of approximately 3.2 mm into the release area 56 against the release direction 64. This corresponds to approximately 80% of a radial width 70 of the holding area 54, values between 50% and 150% of the radial width 70 also being suitable.
- the release area 56 thus has a section 72 which is offset from the stop 66 by precisely that offset distance in the release direction 64 and is thus further away from the holding area 54 in the tangential direction by the offset distance than the stop 66.
- the section 72 delimits a rear area 74 of the Opening 42 through which the holding element 50 can be passed when the hub 16 is attached or detached to the driving flange 22.
- the opening 42 has a convex section 76 which is arranged adjacent to the stop 66.
- This Convex section 76 can be designed in a manner that appears suitable to a person skilled in the art, for example with a radius or as an acute corner.
- the presence of the convex section 76 permits the configuration of the rear region 74 in the release direction 64 behind the stop 66.
- the fastening means 40 can have a holding element 50 which projects further in the release direction 64 than the web 58 of the fastening means 40. This enables a particularly simple, stable and inexpensive manufacture of the fastening means 40.
- FIG. 6 shows a further embodiment of an opening 80 in a hub.
- a holding element 82 of a fastening means 84 has a rounded shape, as does a corresponding rear region 86 of the opening 80.
- a stop 88 of the opening 80 is made shorter than the stop 66 of the opening 42, so that a convex section designed as a pointed corner 90 connects directly to the stop 88. Otherwise, the fastening means 40 and 84 and the openings 42 and 80 correspond in shape and dimensions.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Turning (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/564,669 US8608530B2 (en) | 2003-12-20 | 2004-11-08 | Insertion tool for a machine tool |
DE502004006279T DE502004006279D1 (de) | 2003-12-20 | 2004-11-08 | Einsatzwerkzeug für eine werkzeugmaschine |
EP04820604A EP1697085B1 (de) | 2003-12-20 | 2004-11-08 | Einsatzwerkzeug für eine werkzeugmaschine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10360246.1 | 2003-12-20 | ||
DE10360246A DE10360246A1 (de) | 2003-12-20 | 2003-12-20 | Einsatzwerkzeug für eine Werkzeugmaschine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005061179A1 true WO2005061179A1 (de) | 2005-07-07 |
Family
ID=34706392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/052875 WO2005061179A1 (de) | 2003-12-20 | 2004-11-08 | Einsatzwerkzeug für eine werkzeugmaschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US8608530B2 (de) |
EP (1) | EP1697085B1 (de) |
CN (1) | CN100592961C (de) |
DE (2) | DE10360246A1 (de) |
WO (1) | WO2005061179A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100973157B1 (ko) | 2008-07-16 | 2010-07-30 | 김경진 | 핸드 그라인더의 디스크홀더 착탈장치 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007055778A1 (de) * | 2007-12-12 | 2009-06-18 | Hilti Ag | Handwerkzeugmaschine mit Spannmutter |
CN102814792B (zh) * | 2011-06-09 | 2014-12-17 | 苏州宝时得电动工具有限公司 | 动力工具及应用于该动力工具的工作头和转接器 |
US10399218B2 (en) * | 2011-12-19 | 2019-09-03 | Carine Elen | Motorized scrubbing, buffing, and polishing tool |
US9408513B2 (en) * | 2011-12-19 | 2016-08-09 | Carine Elen | Motorized scrubbing, buffing, and polishing tool |
US9561580B2 (en) * | 2014-03-07 | 2017-02-07 | Prime Supply Inc. | Grinding-disc device for power tools |
DK178917B1 (da) * | 2016-05-31 | 2017-05-22 | Kadicma Aps | Bajonetkobling samt bearbejdningsenhed med sådan bajonetkobling |
US10589439B2 (en) * | 2016-06-21 | 2020-03-17 | Globe Food Equipment Company | Blade mounting and removal tool, system, and product slicer |
JP6625245B2 (ja) * | 2016-12-16 | 2019-12-25 | ミレェテック カンパニー リミテッドMiretec Co., Ltd. | 回転装置 |
CN111136581A (zh) * | 2018-11-05 | 2020-05-12 | 韩建英 | 一种快速装卸专用切割片 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030129933A1 (en) * | 2000-04-07 | 2003-07-10 | Dieter Wendt | Receptacle for grinder tools |
US20030181152A1 (en) * | 2001-06-28 | 2003-09-25 | Albrecht Hofmann | Attachment for grinder |
WO2003097299A1 (de) * | 2002-05-18 | 2003-11-27 | Robert Bosch Gmbh | System mit einer werkzeugaufnahme |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2747343A (en) * | 1954-09-02 | 1956-05-29 | Contur Abrasive Company Inc | Abrasive articles and the like and holders therefor |
US5207028A (en) * | 1991-05-17 | 1993-05-04 | Black & Decker Inc. | Tool element subassembly and method of manufacturing same |
DE10017458A1 (de) * | 2000-04-07 | 2001-10-18 | Bosch Gmbh Robert | Schleifmaschinenwerkzeugaufnahme |
DE10017981A1 (de) * | 2000-04-11 | 2001-10-25 | Bosch Gmbh Robert | Werkzeugaufnahme |
DE10106979A1 (de) * | 2001-02-15 | 2002-09-05 | Bosch Gmbh Robert | Einsatzwerkzeug mit einer rotierend antreibbaren, scheibenförmigen Nabe |
DE10106980A1 (de) * | 2001-02-15 | 2002-09-05 | Bosch Gmbh Robert | Einsatzwerkzeug mit einer rotierend antreibbaren, scheibenförmigen Nabe |
DE10136459A1 (de) * | 2001-07-26 | 2003-02-13 | Bosch Gmbh Robert | System mit einer Werkzeugaufnahme |
DE10218196B4 (de) * | 2002-04-24 | 2017-06-29 | Robert Bosch Gmbh | Einsatzwerkzeug und Schnellspannsystem mit einer rotierend antreibbaren, schweibenförmigen Nabe |
-
2003
- 2003-12-20 DE DE10360246A patent/DE10360246A1/de not_active Ceased
-
2004
- 2004-11-08 US US10/564,669 patent/US8608530B2/en not_active Expired - Fee Related
- 2004-11-08 EP EP04820604A patent/EP1697085B1/de not_active Expired - Fee Related
- 2004-11-08 WO PCT/EP2004/052875 patent/WO2005061179A1/de active IP Right Grant
- 2004-11-08 CN CN200480038214A patent/CN100592961C/zh not_active Expired - Fee Related
- 2004-11-08 DE DE502004006279T patent/DE502004006279D1/de active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030129933A1 (en) * | 2000-04-07 | 2003-07-10 | Dieter Wendt | Receptacle for grinder tools |
US20030181152A1 (en) * | 2001-06-28 | 2003-09-25 | Albrecht Hofmann | Attachment for grinder |
WO2003097299A1 (de) * | 2002-05-18 | 2003-11-27 | Robert Bosch Gmbh | System mit einer werkzeugaufnahme |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100973157B1 (ko) | 2008-07-16 | 2010-07-30 | 김경진 | 핸드 그라인더의 디스크홀더 착탈장치 |
Also Published As
Publication number | Publication date |
---|---|
DE10360246A1 (de) | 2005-07-28 |
DE502004006279D1 (de) | 2008-04-03 |
US20060172668A1 (en) | 2006-08-03 |
US8608530B2 (en) | 2013-12-17 |
CN100592961C (zh) | 2010-03-03 |
CN1933941A (zh) | 2007-03-21 |
EP1697085A1 (de) | 2006-09-06 |
EP1697085B1 (de) | 2008-02-20 |
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