EP0512373A2 - Dispositif de montage d'un outil - Google Patents
Dispositif de montage d'un outil Download PDFInfo
- Publication number
- EP0512373A2 EP0512373A2 EP92107238A EP92107238A EP0512373A2 EP 0512373 A2 EP0512373 A2 EP 0512373A2 EP 92107238 A EP92107238 A EP 92107238A EP 92107238 A EP92107238 A EP 92107238A EP 0512373 A2 EP0512373 A2 EP 0512373A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- intermediate piece
- leaf springs
- flange
- workpiece
- 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.)
- Withdrawn
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
- B24D9/08—Circular back-plates for carrying flexible material
Definitions
- the invention relates to a device for holding a tool, for example a grinding wheel or a milling cutter, on the drivable spindle of a machine tool, a handling device or the like.
- a tool for example a grinding wheel or a milling cutter
- a handling device or the like With a receptacle shaft that can be clamped into it and an adapter that is molded onto it and carries the tool.
- the tool is in each case firmly connected to the intermediate piece.
- a threaded hole is machined into this or a threaded shoulder is formed on it, so that the tool can be exchangeably attached to the intermediate piece by means of a clamping screw or a nut.
- the object of the invention is therefore to provide a device for holding a tool of the type mentioned, by means of which it is possible in a very simple manner to machine workpieces in accordance with the contour present in each case without the machine spindle carrying the tool being in its vertical position must be changed.
- the machine spindle should rather follow a theoretically given contour, the tool, on the other hand, should adapt itself to the actual workpiece contour to be machined and rest on the workpiece with an almost constant contact pressure, so that unevenness is refined, but there is no unnecessary material removal and no damage to the workpieces the processing of which must be accepted.
- this is achieved by means of the device for holding a tool of the type mentioned at the outset in that the tool is attached to the intermediate piece in a limitedly adjustable manner in the axial direction thereof by means of two or more arcuate curved, preferably uniformly distributed leaf springs.
- the depth of the receiving grooves should correspond approximately to the material thickness of the leaf springs.
- One of the flanges holding the leaf springs can be plugged onto the intermediate piece and, for example, connected to the flange by means of grub screws inserted into the flange and engaging in the intermediate piece, the tool can be attached to the other flange.
- the intermediate piece with a collar for the position-oriented support of the flange carrying the leaf springs and the adjustment path of the leaf springs in the direction of the receiving shaft limit by a selectable axial distance between the end face of the intermediate piece and the flange carrying the tool.
- the intermediate piece can have a centrally arranged receiving bore and a guide bolt can be fixedly connected to the tool and / or the flange carrying this, which is held so as to be axially displaceable to a limited extent in the receiving bore of the intermediate piece.
- the receiving bore of the intermediate piece as an enlarged stepped bore on the side facing the receiving shaft and to attach a stop disk or the like to the free end of the guide bolt, for example by means of a screw, through which the adjustment path of the tool in the direction of the machined Workpiece is limited.
- the flange carrying this should be provided with one or more wedge-shaped and axially projecting lugs or the like which engage in the associated recesses of the tool.
- the guide pin can have a stepped threaded neck or a threaded bore penetrating the flange and the tool, onto or into which a clamping nut acting on the tool can be screwed or a clamping screw can be screwed.
- a device for holding a tool according to the invention is formed by the tool is attached to the intermediate piece by means of arcuate curved leaf springs, it is possible in a very simple manner to machine workpieces according to their predetermined contour. Since the tool is held by means of the leaf springs, this is namely automatically adjustable in the axial direction of the intermediate piece, so that it adapts to the contour of the workpiece and it is thus processed with an almost constant contact pressure.
- the machine spindle is therefore not to be aligned with the workpiece to be machined in a series, rather it can follow a theoretical workpiece contour; dimensional tolerances are compensated for by the leaf springs during a work process.
- the device shown in FIG. 1 and designated 1 serves to hold a tool, for example a grinding wheel 3, on a drivable machine spindle 2 of a machine tool in order to be able to machine the surface 5 of a workpiece 4.
- a receptacle shaft 11 which can be clamped into the machine spindle 2 and an intermediate piece 12 formed thereon, on which the grinding wheel 3 is held, are provided.
- the grinding wheel 3 is held by means of four arcuately curved leaf springs 21, so that it delimits in the axial direction of the intermediate piece 12 is adjustable and automatically adapts to the respective surface 5 of the workpiece 4 can adjust. In this way, bumps are refined, but excessive material removal is not carried out.
- the surface 5 of the tool 4 it can be painted.
- two flanges 22 and 23 are provided, in which receiving grooves 24 and 25 and threaded bores 26 and 29 are incorporated.
- the depth of the receiving grooves 24 and 25 corresponds approximately to the material thickness of the leaf springs 21, so that they are flush with the flanges 22 and 23.
- a detachable connection is provided by means of clamping screws 28 and 31, which can be screwed into the threaded bores 26 and 29 of the flanges 22 and 23 and which penetrate holes 27 and 30 machined into the ends 21 'and 21' 'of the leaf springs 21.
- the flange 22 provided with a centering bore 34 can be connected in a rotationally fixed manner to the intermediate piece 12, whereas the grinding wheel 3 is held in a rotationally fixed manner on the flange 23.
- two diametrically opposed, centrally arranged bores 32 are incorporated into these, into which screws 33 engaging in the intermediate piece 12 are inserted.
- this is equipped with a collar 13 on which the flange 22 is supported in a position-oriented manner.
- the guide pin 41 also serves for the additional axial guidance of the grinding wheel 3 during its adjustment movements.
- a two-stage bore 15, 16 is machined into the intermediate piece 12, into which the guide pin 41 engages.
- a bearing 18 this is guided axially displaceably in the area of the bore 15.
- a stop disc 44 is attached to the free end of the guide pin 41 by means of a screw 45, which interacts with the shoulder 17 formed by the stepped bores 15 and 16.
- the guide pin 41 and the grinding wheel 3 can thus be displaced in the direction of the receiving shaft 11, but the adjustment path in the direction of the workpiece 4 to be machined is limited by applying the stop wheel 44 to the shoulder 17, a predetermined preload of the leaf springs 21 is thereby maintained.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19914114707 DE4114707A1 (de) | 1991-05-06 | 1991-05-06 | Vorrichtung zur halterung eines werkzeuges |
DE4114707 | 1991-05-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0512373A2 true EP0512373A2 (fr) | 1992-11-11 |
EP0512373A3 EP0512373A3 (en) | 1993-02-03 |
Family
ID=6431057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19920107238 Withdrawn EP0512373A3 (en) | 1991-05-06 | 1992-04-28 | Device for holding a tool |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0512373A3 (fr) |
DE (1) | DE4114707A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2862248A1 (fr) * | 2003-11-17 | 2005-05-20 | Giat Ind Sa | Dispositif de polissage de la surface d'un bloc de materiau |
FR2875155A1 (fr) * | 2004-09-10 | 2006-03-17 | Essilor Int | Outil de polissage comportant un plateau d'entrainement et un patin amovible pour la finition d'une lentille ophtalmique |
CN107662118A (zh) * | 2017-11-25 | 2018-02-06 | 山西江淮重工有限责任公司 | 圆弧形卡箍端面的铣削装夹工装 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1840254A (en) * | 1929-06-27 | 1932-01-05 | Fischman & Sons I | Polishing apparatus |
DE2930740A1 (de) * | 1979-07-28 | 1981-02-12 | Fabritius Hans Josef | Plan-schleifteller fuer hochtourige winkel- und druckluft-schleifmaschinen |
-
1991
- 1991-05-06 DE DE19914114707 patent/DE4114707A1/de not_active Withdrawn
-
1992
- 1992-04-28 EP EP19920107238 patent/EP0512373A3/de not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1840254A (en) * | 1929-06-27 | 1932-01-05 | Fischman & Sons I | Polishing apparatus |
DE2930740A1 (de) * | 1979-07-28 | 1981-02-12 | Fabritius Hans Josef | Plan-schleifteller fuer hochtourige winkel- und druckluft-schleifmaschinen |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2862248A1 (fr) * | 2003-11-17 | 2005-05-20 | Giat Ind Sa | Dispositif de polissage de la surface d'un bloc de materiau |
FR2875155A1 (fr) * | 2004-09-10 | 2006-03-17 | Essilor Int | Outil de polissage comportant un plateau d'entrainement et un patin amovible pour la finition d'une lentille ophtalmique |
WO2006030091A1 (fr) * | 2004-09-10 | 2006-03-23 | Essilor International (Compagnie Generale D'optique) | Outil de polissage comportant un plateau d'entrainement et un patin amovible pour la finition d'une lentille ophtalmique |
US8029341B2 (en) | 2004-09-10 | 2011-10-04 | Essilor International (Compagnie Generale D'optique) | Polishing tool comprising a drive plate and a removable pad for finishing an ophthalmic lens |
CN107662118A (zh) * | 2017-11-25 | 2018-02-06 | 山西江淮重工有限责任公司 | 圆弧形卡箍端面的铣削装夹工装 |
CN107662118B (zh) * | 2017-11-25 | 2023-12-22 | 山西江淮重工有限责任公司 | 圆弧形卡箍端面的铣削装夹工装 |
Also Published As
Publication number | Publication date |
---|---|
EP0512373A3 (en) | 1993-02-03 |
DE4114707A1 (de) | 1992-11-12 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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AK | Designated contracting states |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 19930804 |