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WO2016008631A1 - Ponceuse à excentrique pourvue de deux entraînements - Google Patents

Ponceuse à excentrique pourvue de deux entraînements Download PDF

Info

Publication number
WO2016008631A1
WO2016008631A1 PCT/EP2015/061648 EP2015061648W WO2016008631A1 WO 2016008631 A1 WO2016008631 A1 WO 2016008631A1 EP 2015061648 W EP2015061648 W EP 2015061648W WO 2016008631 A1 WO2016008631 A1 WO 2016008631A1
Authority
WO
WIPO (PCT)
Prior art keywords
eccentric
drive
gear
rotary drive
orbital
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.)
Ceased
Application number
PCT/EP2015/061648
Other languages
German (de)
English (en)
Inventor
Richard E Geitner
Reinhard Gantke
Zoltan Ross
Albrecht Kreissig
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.)
C&E Fein GmbH and Co
Original Assignee
C&E Fein GmbH and Co
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 C&E Fein GmbH and Co filed Critical C&E Fein GmbH and Co
Priority to EP15725604.1A priority Critical patent/EP3169482A1/fr
Publication of WO2016008631A1 publication Critical patent/WO2016008631A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • B24B23/03—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor the tool being driven in a combined movement

Definitions

  • the invention relates to an eccentric grinder with an eccentric drive for driving a tool holder on which a grinding tool can be fixed.
  • Eccentric sander are in use for decades, especially to perform surface grinding on larger surfaces.
  • the grinding pattern and the grinding removal depends on the construction of the eccentric drive and can not be influenced practically in a given construction.
  • This eccentric sander additionally has a device for Changing the grinding movement between pure eccentric and a drive with a forced rolling movement of an eccentrically and rotatably mounted on a drive shaft with the grinding disc friction or ring gear on.
  • the eccentric grinder several friction rings or gear rims fixed to the housing and there are several sanding plates provided with corresponding friction or sprockets, which can cooperate with the housing-fixed friction or sprockets.
  • the present invention seeks to provide an eccentric grinder with which a very effective Schleifabtrag is made possible and preferably the microsection is adaptable depending on the application.
  • the eccentric drive is additionally mechanically coupled with a rotary drive, so that the tool holder and thus the grinding disc recorded there performs an eccentric movement which is superimposed with a rotational movement.
  • the rotary drive and the eccentric drive are independently controllable.
  • This feature has the particular advantage that the behavior of the eccentric grinder can be adjusted during operation and to the respective Task can be coordinated. Thus, the removal can be optimized and a particularly favorable grinding pattern can be generated.
  • the eccentric drive on an eccentric element on which the tool holder is received.
  • the eccentric drive on an eccentric element, which is coupled to an output element of the rotary drive via a first transmission.
  • the rotary drive a second gear, preferably a bevel gear on.
  • the second transmission is preferably driven by a motor shaft of the rotary drive via a third gear.
  • the speed of a commonly used universal motor can be adjusted to the desired speed of the tool holder.
  • the eccentric drive on a motor with a motor shaft from which an intermediate shaft is driven via a further gear wherein the eccentric element is eccentrically mounted on the intermediate shaft by means of an eccentric bearing.
  • a gear with external teeth is provided on the eccentric element, which is in engagement with an internal toothing on the output element of the rotary drive.
  • the rotational speed of the rotary drive and the eccentric drive are preferably independently controllable.
  • This measure has the advantage that the behavior of the eccentric grinder can be varied within wide limits in order to adapt this to different grinding tasks can.
  • the gears are preferably designed as a gear transmission.
  • a central control for controlling the rotary drive and the eccentric drive is provided, which is coupled to at least one control element for controlling the rotary drive and / or the eccentric drive, wherein preferably both the rotary drive and the eccentric drive over each an adjusting element are adjustable.
  • the speed adjustment for the rotary drive and the eccentric drive can be performed in a simple and comfortable to use manner.
  • Figure 1 is a perspective side view of an eccentric grinder according to the invention
  • FIG. 2 shows the eccentric sander according to FIG. 1 without the outer housing for better recognition of rotary drive and eccentric drive;
  • FIG. 3 shows a section through the eccentric drive according to FIG. 2;
  • Figure 4 is a schematic circuit, the central control with the associated
  • FIG. 1 An eccentric grinder according to the invention is shown in perspective in FIG. 1 in the side view and designated overall by the numeral 10.
  • the eccentric grinder 10 has a housing 12 with a knob-shaped handle portion 14 at the upper end of the housing 12, and with an elongated, rearwardly tapered handle 16 to which a switch 18 is provided for switching on and off of the eccentric slider 10 , Attached to the lower end of the housing 12 is a sanding pad 20 to which an abrasive (e.g., abrasive paper) may be releasably secured, preferably by means of a hook and loop fastener.
  • an abrasive e.g., abrasive paper
  • the eccentric sander 10 has two drives, namely a rotary drive 22 and an eccentric 24, which are mechanically coupled to each other to the sanding pad with a resulting movement to drive, which arises from the superposition of an eccentric motion with a rotary motion.
  • the rotary drive 22 and the eccentric drive 24 can be controlled separately, for which purpose a central control 60 is provided, which is coupled with adjusting elements 62, 64.
  • the adjusting elements 62, 64 are not shown in Fig. 1.
  • the rotary drive 22 has a motor 22a with a motor shaft 23 which is received in the handle 16.
  • the eccentric 24 has a motor 24a with a motor shaft 25 which is arranged perpendicular to the motor 22a and is located below the handle portion 14.
  • a gear pinion 53 is received, which drives a gear 54 of an intermediate shaft 40.
  • the motor shaft 23 thus drives the intermediate shaft 40 via a spur gear 52.
  • the intermediate shaft 40 is mounted in the housing 12 by means of two bearings 50, 51 and drives a driven gear 44 via a bevel gear 42 at.
  • a pinion 43 is provided with a bevel gear, which meshes with an associated toothing on the driven gear 44.
  • the output gear 44 is thus driven by the motor 22a via a double gear transmission ratio about its longitudinal axis rotating.
  • the motor 24a of the eccentric 24 drives with its motor shaft 25 via a spur gear 56 to an intermediate shaft 36 which by means of two bearings 37, 38 in Housing 12 is mounted.
  • the output gear 44 associated end of the intermediate shaft 36 is a pot-shaped bearing receptacle 34 for an eccentric 33 is arranged eccentrically.
  • an eccentric element 28 is rotatably mounted with a projection 32.
  • the eccentric element 28 has at its outer end a tool holder 48, for example in the form of a threaded bore in which the sanding pad 20 is removably secured by a screw 55.
  • a gear 30 is provided with an external toothing on the eccentric element 28, which meshes with an associated internal toothing 46 on the inner surface of the hollow output gear 44.
  • the eccentric element 28 is displaced in a about a longitudinal axis 35 of the intermediate shaft 36 eccentric circular motion.
  • the gear formed by the gear 30 and the internal teeth 46 of the driven gear 44 gear 26 results from the gear formed by the gear 30 and the internal teeth 46 of the driven gear 44 gear 26, a rotating drive movement of the eccentric element 28, which is superimposed on the eccentric movement.
  • the eccentric grinder 10 has a central control 60, by means of which the rotational speed of the rotary drive 22 and the eccentric drive 24 via two adjusting elements 62, 64 is individually controllable.
  • the drive of the eccentric grinder 10 can be varied within wide limits with respect to the rotational speed of the eccentric drive 24 and the rotational speed of the rotary drive 22 and thus adapted to the most varied grinding tasks.
  • the grinding removal and the grinding pattern can be optimized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

L'invention concerne une ponceuse à excentrique (10) comprenant un entraînement à excentrique (24) destiné à entraîner un porte-outil (48) sur lequel un outil de ponçage (20) peut être fixé. Un entraînement en rotation (22) est prévu qui est accouplé mécaniquement à l'entraînement à excentrique (24) pour entraîner le porte-outil (20) de manière à générer un mouvement du porte-outil résultant du mouvement de l'excentrique et du mouvement de rotation. De préférence, l'entraînement en rotation (22) et l'entraînement à excentrique (24) sont commandés indépendamment.
PCT/EP2015/061648 2014-07-15 2015-05-27 Ponceuse à excentrique pourvue de deux entraînements Ceased WO2016008631A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15725604.1A EP3169482A1 (fr) 2014-07-15 2015-05-27 Ponceuse à excentrique pourvue de deux entraînements

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014109904.4A DE102014109904A1 (de) 2014-07-15 2014-07-15 Exzenterschleifer
DE102014109904.4 2014-07-15

Publications (1)

Publication Number Publication Date
WO2016008631A1 true WO2016008631A1 (fr) 2016-01-21

Family

ID=53274533

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/061648 Ceased WO2016008631A1 (fr) 2014-07-15 2015-05-27 Ponceuse à excentrique pourvue de deux entraînements

Country Status (3)

Country Link
EP (1) EP3169482A1 (fr)
DE (1) DE102014109904A1 (fr)
WO (1) WO2016008631A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237854A2 (fr) * 1986-03-20 1987-09-23 Robert Bosch Gmbh Ponceuse à excentrique munie d'un dispositif de variation du mouvement de ponçage
DE3702937A1 (de) * 1987-01-31 1988-08-11 Eoc Normalien Gmbh & Co Kg Verfahren zum polieren und poliergeraet
EP0320599A1 (fr) * 1987-12-16 1989-06-21 Festo KG Meuleuse à disque excentrique
WO1989009114A1 (fr) * 1988-03-24 1989-10-05 Robert Bosch Gmbh Meuleuse excentrique
DE3933885A1 (de) * 1988-10-12 1990-04-19 Urawa Kogyo Kk Motorisch angetriebene schleifvorrichtung
WO2003008150A1 (fr) * 2001-07-14 2003-01-30 Robert Bosch Gmbh Machine-outil a main pourvue d'un moyen de freinage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3615799C2 (de) 1986-05-10 1994-10-13 Bosch Gmbh Robert Exzenterschleifer mit einer Vorrichtung zum Verändern der Schleifbewegung
DE4233728A1 (de) * 1992-10-07 1994-04-14 Bosch Gmbh Robert Exzentertellerschleifer
DE19905624A1 (de) * 1999-02-11 2000-08-17 Festo Tooltechnic Gmbh & Co Exzenterteller-Schleifmaschine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237854A2 (fr) * 1986-03-20 1987-09-23 Robert Bosch Gmbh Ponceuse à excentrique munie d'un dispositif de variation du mouvement de ponçage
DE3702937A1 (de) * 1987-01-31 1988-08-11 Eoc Normalien Gmbh & Co Kg Verfahren zum polieren und poliergeraet
EP0320599A1 (fr) * 1987-12-16 1989-06-21 Festo KG Meuleuse à disque excentrique
WO1989009114A1 (fr) * 1988-03-24 1989-10-05 Robert Bosch Gmbh Meuleuse excentrique
DE3933885A1 (de) * 1988-10-12 1990-04-19 Urawa Kogyo Kk Motorisch angetriebene schleifvorrichtung
WO2003008150A1 (fr) * 2001-07-14 2003-01-30 Robert Bosch Gmbh Machine-outil a main pourvue d'un moyen de freinage

Also Published As

Publication number Publication date
DE102014109904A1 (de) 2016-01-21
EP3169482A1 (fr) 2017-05-24

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