EP0737548A1 - Verbesserter Kopf für Schleifmaschinen mit Trägerarmen für oszillierende Segmente - Google Patents

Verbesserter Kopf für Schleifmaschinen mit Trägerarmen für oszillierende Segmente Download PDF

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Publication number
EP0737548A1
EP0737548A1 EP96830131A EP96830131A EP0737548A1 EP 0737548 A1 EP0737548 A1 EP 0737548A1 EP 96830131 A EP96830131 A EP 96830131A EP 96830131 A EP96830131 A EP 96830131A EP 0737548 A1 EP0737548 A1 EP 0737548A1
Authority
EP
European Patent Office
Prior art keywords
shaft
casing
crown
engaged
toothed
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Withdrawn
Application number
EP96830131A
Other languages
English (en)
French (fr)
Inventor
Renzo Signorini
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.)
Comes Srl
Original Assignee
Comes Srl
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 Comes Srl filed Critical Comes Srl
Publication of EP0737548A1 publication Critical patent/EP0737548A1/de
Withdrawn legal-status Critical Current

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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
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • B24B41/047—Grinding heads for working on plane surfaces
    • B24B41/0475—Grinding heads for working on plane surfaces equipped with oscillating abrasive blocks, e.g. mounted on a rotating head

Definitions

  • the subject of the present invention is an improved head for polishing machines with oscillating sector-carrying arms, of the type intended for levitation and polishing of stony materials such as, for example, marbles and granites.
  • the heads for polishing machines with oscillating sector carriers comprise, essentially, a fixed support which is integral with the chassis of the machine, a central vertical shaft connected to a motor member by means of a drive stud, and means for connecting the movement of said central shaft to a plurality of sector-carrying arms, each of which supports a corresponding abrasive sector for performing the actual polishing of the surface in work, and which oscillate angularly around corresponding inclined axes with respect to said area or otherwise parallel to the same.
  • the Italian documents FI92A16, FI92A112 and FI93A104 describe operational heads based on the aforementioned constructive scheme.
  • the main purpose of the present invention is to eliminate the aforementioned drawbacks.
  • FIG. 1 shows the perspective view, partially in section, of a head for polishing machines according to the invention, where a spherical articulation is visible to make the head oscillating relative to the central motor shaft and means for retaining said joint;
  • Fig. 2 shows the perspective view, partially in section, of a head for polishing machines according to the invention, where are visible means for transmitting the movement from the central shaft to the ring gear which transmits the movement to the sector carriers;
  • Fig. 3 shows the sectional view along AA of FIG. 2;
  • Fig. 4 shows the sectional view along BB of FIG. 2.
  • said crown (4) is integral with a bushing (91) which is installed idly, with a slight clearance, on the central shaft (1) and is at its turn integral with the casing from which the respective rotational movement is derived in the exercise position.
  • a bushing (91) which is installed idly, with a slight clearance, on the central shaft (1) and is at its turn integral with the casing from which the respective rotational movement is derived in the exercise position.
  • an eccentric (12) is fixed on which is engaged a crazy sleeve (17) installed in the buttonhole (18) of said crown (4): the diameter of said sleeve (17) being slightly less than the length of the minor axis of the buttonhole (18).
  • the abrasive sectors are subjected to a rotational movement around the axis of the shaft (1) and at the same time, an oscillatory movement around the axes of the shafts of the respective sector carriers (7), as required to obtain correct polishing of the working surface.
  • the frequency of the oscillatory movement of said sector carriers (7) is determined, fundamentally, by the characteristics of the connection which controls the above-mentioned wheel (11) and by the specific geometrical characteristics of the eccentric (12), in addition to the angular speed of the shaft (1).
  • the structure defined above makes it possible to reduce the overall height in height of the heads for polishing machines of the aforementioned type, since the control of the oscillation of the crown (4) results housed inside the same rather than outside .
  • said casing (9.90) is made to oscillate relative to the central shaft (1) by means of a spherical joint (5) and maintained in an orthogonal position relative to the shaft (1) at by means of the pressure exerted by elastic elements (50) which are placed on opposite sides with respect to the lower base (90) of the casing and interposed between said flange (15) carried by the shaft (1) and a flange ( 43) in a position higher than the latter: a threaded ring (33) being provided in the center of said flange (15) to allow the location of the shaft (1) in the same and the positioning of the articulation (5) coaxially with the shaft (1).
  • the described structure allows the self-adaptation of the operational head to the local irregularities of the working surfaces and the absorption of forces in the operational position, even in the case of harder materials.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
EP96830131A 1995-04-14 1996-03-20 Verbesserter Kopf für Schleifmaschinen mit Trägerarmen für oszillierende Segmente Withdrawn EP0737548A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT95FI000066A IT1278641B1 (it) 1995-04-14 1995-04-14 Testa perfezionata per macchine lucidatrici con bracci portasettori oscillanti
ITFI950066 1995-04-14

Publications (1)

Publication Number Publication Date
EP0737548A1 true EP0737548A1 (de) 1996-10-16

Family

ID=11351177

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96830131A Withdrawn EP0737548A1 (de) 1995-04-14 1996-03-20 Verbesserter Kopf für Schleifmaschinen mit Trägerarmen für oszillierende Segmente

Country Status (2)

Country Link
EP (1) EP0737548A1 (de)
IT (1) IT1278641B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0908271A3 (de) * 1997-10-09 2001-01-31 CO.ME.S. S.r.l. Schleifkopf mit oszillierenden Werkzeugträgern
CN1074971C (zh) * 1997-10-09 2001-11-21 Co·Me·S·有限公司 具有摆动工具夹的研磨头
EP1234635A3 (de) * 2001-01-26 2002-11-27 Perini Macchine S.r.l Glätt- und Polierkopf für Steinplatten oder sonstige Materialplatten, mit elastisch-schwingungsdämpfenden Elementen
EP1234634A3 (de) * 2000-01-28 2002-11-27 Perini Macchine S.r.l Schleifkopf zum Glätten und Polieren von Gestein
EP1231023A3 (de) * 2001-01-26 2002-11-27 Perini Macchine S.r.l Glätt- und Polierkopf für Steine, mit schwingenden Schuhhaltevorrichtungen, die mit den entsprechenden Antriebswellen verspannt sind

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8808679U1 (de) * 1988-07-06 1988-11-17 Wallin, Anders, Lund Schleifkopf zum Oberflächenbearbeiten und Polieren von Stein, Marmor und anderen harten Werkstoffen
EP0437831A1 (de) * 1990-01-18 1991-07-24 Brema Srl Polierkopf mit schwingenden Schleifsteinen zum Bearbeiten von Steinmaterialien, insbesondere von Granitplatten
EP0628381A1 (de) * 1993-05-25 1994-12-14 CO.ME.S. S.r.l. Kopf für Poliermaschine mit oszillierenden Sektorträgern

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8808679U1 (de) * 1988-07-06 1988-11-17 Wallin, Anders, Lund Schleifkopf zum Oberflächenbearbeiten und Polieren von Stein, Marmor und anderen harten Werkstoffen
EP0437831A1 (de) * 1990-01-18 1991-07-24 Brema Srl Polierkopf mit schwingenden Schleifsteinen zum Bearbeiten von Steinmaterialien, insbesondere von Granitplatten
EP0628381A1 (de) * 1993-05-25 1994-12-14 CO.ME.S. S.r.l. Kopf für Poliermaschine mit oszillierenden Sektorträgern

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0908271A3 (de) * 1997-10-09 2001-01-31 CO.ME.S. S.r.l. Schleifkopf mit oszillierenden Werkzeugträgern
CN1074971C (zh) * 1997-10-09 2001-11-21 Co·Me·S·有限公司 具有摆动工具夹的研磨头
EP1234634A3 (de) * 2000-01-28 2002-11-27 Perini Macchine S.r.l Schleifkopf zum Glätten und Polieren von Gestein
EP1234635A3 (de) * 2001-01-26 2002-11-27 Perini Macchine S.r.l Glätt- und Polierkopf für Steinplatten oder sonstige Materialplatten, mit elastisch-schwingungsdämpfenden Elementen
EP1231023A3 (de) * 2001-01-26 2002-11-27 Perini Macchine S.r.l Glätt- und Polierkopf für Steine, mit schwingenden Schuhhaltevorrichtungen, die mit den entsprechenden Antriebswellen verspannt sind

Also Published As

Publication number Publication date
IT1278641B1 (it) 1997-11-27
ITFI950066A0 (it) 1995-04-14
ITFI950066A1 (it) 1996-10-14

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