EP1289712A1 - Procede de rectification et rectifieuse - Google Patents

Procede de rectification et rectifieuse

Info

Publication number
EP1289712A1
EP1289712A1 EP00991534A EP00991534A EP1289712A1 EP 1289712 A1 EP1289712 A1 EP 1289712A1 EP 00991534 A EP00991534 A EP 00991534A EP 00991534 A EP00991534 A EP 00991534A EP 1289712 A1 EP1289712 A1 EP 1289712A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
ground
deburring
grinding
mandrel
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
EP00991534A
Other languages
German (de)
English (en)
Other versions
EP1289712B1 (fr
Inventor
Ernst Gruendler
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1289712A1 publication Critical patent/EP1289712A1/fr
Application granted granted Critical
Publication of EP1289712B1 publication Critical patent/EP1289712B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B24B41/065—Steady rests
    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/14—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding conical surfaces, e.g. of centres
    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
    • B24B5/24—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work for grinding conical surfaces

Definitions

  • the invention relates to a method for cylindrical grinding of a workpiece, in which a rotating grinding wheel is fed against a surface of the workpiece to be ground, while at the same time the workpiece rotates about its longitudinal axis, the surface to be ground being delimited by an edge and into a neighboring surface
  • the invention also relates to a device for cylindrical grinding of a workpiece, with a grinding wheel and a receptacle for the workpiece to be ground
  • the object of the invention is then to improve the grinding method of the type mentioned in such a way that the deburring process can be omitted.
  • the object of the invention is then to provide a grinding device which makes it possible to dispense with the separate deburring process Advantages of the invention
  • the method according to the invention with the features of claim 1 has the advantage that the burr which arises when the grinding wheel is brought in against the surface to be ground is automatically eliminated. A separate deburring process is therefore no longer necessary
  • the deburring mandrel is printed on the neighboring surface with a force between 10 and 100 N, in particular with a force in the order of magnitude of approximately 50 N
  • a pneumatic cylinder is provided, the deburring pin with an adjustable ble
  • FIG. 1 is a schematic view of a grinding machine according to the invention.
  • FIG. 3 shows a view of the components shown in FIG. 2 along the direction of the arrow III in FIG. 2;
  • FIG. 5 shows a half section through the machined workpiece along the plane V of FIG. 3;
  • FIG. 6 shows a view corresponding to that of FIG. 2, a second embodiment of the invention
  • FIG. 7 is a view corresponding to that of FIG. 4, a section through the workpiece of FIG. 6;
  • the grinding machine contains a frame 10, in which a receptacle 12 for a workpiece 14 to be machined is arranged.
  • a drive 16 is provided with which the workpiece 14 can be set in rotation.
  • a grinding wheel 18 is provided, which can be set in rotation by means of an infeed drive 20 and can also be suitably advanced against a surface of the workpiece 14 to be ground.
  • the grinding machine described so far is of conventional construction, so that its construction need not be described in detail.
  • the grinding machine is additionally provided with a deburring mandrel 22, which is made of hard metal and can be pressed against the workpiece 14 to be machined by a pressure mechanism 24.
  • the pressure mechanism has a pneumatic cylinder 26 (see FIG. 2), the interior of which can be pressurized via two schematically illustrated pneumatic lines 28 to press the deburring mandrel 22 in the direction of arrow P of FIG. 2 against the workpiece 14.
  • the operation of the deburring mandrel is as follows: If the grinding wheel 18 is advanced against a surface 30 of the workpiece 14 to be ground in the direction of the arrow Z in FIG. 2, a burr 32 is formed (see FIGS. 3 and 4) made of material exists, which is displaced onto an adjoining adjacent surface 36 via an edge 34 which delimits the surface 30 of the workpiece to be machined.
  • FIG. 4 shows a section through a section of the workpiece that has just been machined by the grinding wheel 18 and now rotates towards the deburring dome 22.
  • the ridge 32 is located outside the surface 30 to be machined in the area of the adjacent surface 36 adjacent to the edge 34.
  • FIG. 5 shows a section through a section of the workpiece which, after contacting the end surface of the deburring mandrel 22, is again visible moved to the grinding wheel 18. It can clearly be seen that the ridge 32 has been pressed back onto the surface 30 to be machined, so that it is ground off the next time it comes into contact with the grinding wheel 18.
  • the pressing force of the deburring mandrel 22 can be selected depending on the respective requirements and the material to be processed. If the workpiece 14 is, for example, a valve needle for a fuel injection valve for Verre ⁇ Vietnamesemaschi ⁇ en, in which the surface to be machined has a diameter of a few millimeters, pressure forces of 50 N are sufficient.
  • the cycle described here of producing the burr by contact between the workpiece 14 and the grinding wheel 18, pressing the burr 32 back onto the surface 30 to be machined and grinding the burr is repeated until the grinding wheel fires, that is to say no material is removed and therefore no burr can arise.
  • the result of the grinding process described is a workpiece 14 with a ground surface 30 that has no burr without a separate deburring process being necessary.
  • the arrangement of the deburring mandrel 22 shown here relative to the grinding wheel 18 can be varied depending on the requirements. If several surfaces are ground simultaneously and in addition, for example, measuring tools monitor the grinding process, the deburring mandrel 22 can also be used in other positions relative to the grinding wheel
  • FIGS. 6 to 8 show a second embodiment of the grinding machine and the grinding method carried out with it.
  • the same reference numerals are used for the components already known from the first embodiment, and reference is made to the above explanations
  • a cylindrical outer surface of the workpiece 14 is ground here, so that the ridge 32 is formed on an adjacent surface 36 adjacent to the surface 30 to be machined, which extends perpendicular to the longitudinal axis of the workpiece 14 the burr 32 is pressed back by the deburring mandrel 22 onto the surface 30 to be ground, as can be seen by comparing FIGS. 7 and 8
  • the deburring mandrel 22 does not abut the workpiece 14 with its end face in the second embodiment, but with a conically shaped pressure face 38.
  • the longitudinal axis of the deburring mandrel 22 is not aligned perpendicular to the longitudinal axis of the workpiece 14, but extends obliquely This is particularly worth mentioning that the deburring mandrel 22 is not printed against the workpiece 14 in the direction in which the ridge 32 is to be printed back onto the surface to be machined, but in a direction in which the burr was expected to continue was printed inwards towards the longitudinal axis of the workpiece.
  • the ridge 32 is printed back onto the surface 30 to be ground by the obliquely positioned pressure surface 38 away from the longitudinal axis of the workpiece 1 4
  • Alignment of the deburring mandrel 22 is particularly advantageous if other components of the grinding machine have to be arranged in the area relative to FIG. 6 to the left of the deburring mandrel 22, with this arrangement the pressure mechanism 24 can then be arranged far outside of this area

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

L'invention concerne un procédé pour rectifier une pièce (14), selon lequel une meule en rotation (18) est avancée vers une surface à rectifier (30) de la pièce (14), pendant que la pièce tourne autour de son axe longitudinal. La surface à rectifier (30) est délimitée par une arête (34) et se transforme en une surface adjacente (36). L'invention vise à supprimer la nécessité de recourir à un ébavurage, opération indispensable jusqu'à présent à la suite de la rectification. A cet effet, un mandrin d'ébavurage (22) est plaqué sur la surface adjacente (36) pendant la rectification, de sorte qu'une bavure (32) produite lors de la rectification de la surface (30) soit repoussée sur cette dernière. L'invention concerne également un dispositif pour mettre en oeuvre ledit procédé.
EP00991534A 2000-02-15 2000-12-20 Procede de rectification et rectifieuse Expired - Lifetime EP1289712B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10006559 2000-02-15
DE10006559A DE10006559A1 (de) 2000-02-15 2000-02-15 Schleifverfahren und Schleifmaschine
PCT/DE2000/004548 WO2001060565A1 (fr) 2000-02-15 2000-12-20 Procede de rectification et rectifieuse

Publications (2)

Publication Number Publication Date
EP1289712A1 true EP1289712A1 (fr) 2003-03-12
EP1289712B1 EP1289712B1 (fr) 2005-07-13

Family

ID=7630893

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00991534A Expired - Lifetime EP1289712B1 (fr) 2000-02-15 2000-12-20 Procede de rectification et rectifieuse

Country Status (5)

Country Link
US (1) US20040067721A1 (fr)
EP (1) EP1289712B1 (fr)
JP (1) JP2003522652A (fr)
DE (2) DE10006559A1 (fr)
WO (1) WO2001060565A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6736860B2 (en) * 2002-03-12 2004-05-18 Unilever Home & Personal Care Usa Division Of Conopco, Inc. Gradual permanent coloring of hair using dye intermediates dissolved in alkaline water with fatty alcohol
US6743265B2 (en) * 2002-03-13 2004-06-01 Unilever Home & Personal Care Usa Division Of Conopco, Inc. Gradual permanent coloring of hair using dye intermediates dissolved in alkaline water with a gelling agent
US6758867B2 (en) * 2001-12-28 2004-07-06 Unilever Home & Personal Care Usa, Division Of Conopco, Inc. Gradual permanent coloring of hair using dye intermediates in a shampoo base

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1475186B1 (fr) * 2003-05-07 2005-09-21 HTT Hauser Tripet Tschudin AG Méthode et dispositif pour abraser des pièces à symétrie de révolution
DE50301227D1 (de) * 2003-05-07 2006-02-02 Htt Hauser Tripet Tschudin Ag Verfahren und Vorrichtung zum abrasiven Rundbearbeiten
US7021990B2 (en) 2003-08-19 2006-04-04 Htt Hauser Tripet Tschudin Ag Method and apparatus for circular grinding
US7029366B2 (en) 2004-08-17 2006-04-18 Htt Hauser Tripet Tschudin Ag Method and apparatus for abrasive circular machining
DE102007023894A1 (de) * 2007-05-23 2008-11-27 Robert Bosch Gmbh Vorrichtung zum Rundschleifen wenigstens eines Abschnittes eines Bauteiles
CN102240938B (zh) * 2011-07-15 2013-12-11 东莞市翔通光电技术有限公司 光纤陶瓷插芯的自动倒角机及其自动倒角加工方法
CN102794684A (zh) * 2012-08-31 2012-11-28 浙江东晶电子股份有限公司 一种小型化晶体谐振器金属封焊电极的修磨方法
KR101481053B1 (ko) * 2014-02-19 2015-01-12 니탄 밸브 가부시키가이샤 가공 장치 및 버 제거 장치
JP6687441B2 (ja) * 2016-03-28 2020-04-22 中央発條株式会社 コイルばね用端末処理装置
CN110539221A (zh) * 2019-10-17 2019-12-06 北京第二机床厂有限公司 适应于高精度伺服阀阀芯的磨削同步去毛刺机构及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1885233A (en) * 1926-02-10 1932-11-01 Norton Co Fluid pressure operated steadyrest
US3334445A (en) * 1964-10-26 1967-08-08 Timken Roller Bearing Co Grinding machine
CH628560A5 (en) * 1978-05-18 1982-03-15 Studer Ag Fritz Work-supporting device on a machine tool
DE3009294A1 (de) * 1980-03-11 1981-09-17 Fa. Gottlieb Gühring, 7470 Ebingen Verfahren und vorrichtung zur herstellung von werkstuecken mit nadelfoermigen feinzapfen
JP3158760B2 (ja) * 1993-02-26 2001-04-23 豊田工機株式会社 研削方法
US5865667A (en) * 1996-05-22 1999-02-02 Rollomatic S.A. Grinding machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0160565A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6758867B2 (en) * 2001-12-28 2004-07-06 Unilever Home & Personal Care Usa, Division Of Conopco, Inc. Gradual permanent coloring of hair using dye intermediates in a shampoo base
US6736860B2 (en) * 2002-03-12 2004-05-18 Unilever Home & Personal Care Usa Division Of Conopco, Inc. Gradual permanent coloring of hair using dye intermediates dissolved in alkaline water with fatty alcohol
US6743265B2 (en) * 2002-03-13 2004-06-01 Unilever Home & Personal Care Usa Division Of Conopco, Inc. Gradual permanent coloring of hair using dye intermediates dissolved in alkaline water with a gelling agent

Also Published As

Publication number Publication date
DE10006559A1 (de) 2001-08-23
JP2003522652A (ja) 2003-07-29
WO2001060565A1 (fr) 2001-08-23
EP1289712B1 (fr) 2005-07-13
US20040067721A1 (en) 2004-04-08
DE50010720D1 (de) 2005-08-18

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