EP0342315A2 - Machine for deburring work pieces - Google Patents

Machine for deburring work pieces Download PDF

Info

Publication number
EP0342315A2
EP0342315A2 EP89102873A EP89102873A EP0342315A2 EP 0342315 A2 EP0342315 A2 EP 0342315A2 EP 89102873 A EP89102873 A EP 89102873A EP 89102873 A EP89102873 A EP 89102873A EP 0342315 A2 EP0342315 A2 EP 0342315A2
Authority
EP
European Patent Office
Prior art keywords
plate
bristles
brushes
machine
holder
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
EP89102873A
Other languages
German (de)
French (fr)
Other versions
EP0342315B1 (en
EP0342315A3 (en
Inventor
Klaus Hildenbrand
Alfred Walter
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.)
Kadia-Maschinenbau Kopp & Co GmbH
Original Assignee
Kadia-Maschinenbau Kopp & Co 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 Kadia-Maschinenbau Kopp & Co GmbH filed Critical Kadia-Maschinenbau Kopp & Co GmbH
Publication of EP0342315A2 publication Critical patent/EP0342315A2/en
Publication of EP0342315A3 publication Critical patent/EP0342315A3/en
Application granted granted Critical
Publication of EP0342315B1 publication Critical patent/EP0342315B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B24B41/002—Grinding heads
    • 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
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
    • 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
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor

Definitions

  • the present invention relates to a machine for deburring workpieces according to the preamble of claim 1.
  • the object of the present invention is to provide a machine for deburring workpieces of the type mentioned in the introduction, in which the heat aging of the plastic bristles of the plate brushes is slowed down.
  • the features specified in the characterizing part of claim 1 are provided in a machine for deburring workpieces of the type mentioned.
  • the features of claim 2 ensure that the coolant is distributed approximately uniformly over the entire bristle surfaces and thus over all bristles by the rotational movement, so that the uniform quality of the bristles on the plate brushes is maintained.
  • the machine 11 shown in the drawing for deburring workpieces 12 in the form of housing covers is equipped with two pairs of horizontally arranged plate brushes 16, 17 and 18, 19 for deburring the long sides 13 and 14 of the workpiece 12 as well as with a vertically arranged pair Disc brushes 20 and 21 are provided, which are used for deburring the top or bottom 22 of the workpiece 12. While the pairs of plate brushes 16, 17 and 18, 19 with a horizontal axis are arranged opposite one another in a region 23 of the machine stand (not shown), the plate brushes 20, 21 with a vertical axis are arranged in an adjacent region 24 of the machine stand. According to FIG.
  • a machine table 26 can be moved back and forth between these two areas 23 and 24 of the machine stand, on which the workpiece 12 can be clamped, which in this way processes on its longitudinal sides 13, 14 and on its top and bottom sides 22 becomes.
  • the reciprocating drive for the table 26 can be done in any known manner.
  • the plate brush pairs 16, 17 and 18, 19 are driven with their horizontal, parallel shafts 27 according to arrows A and B or A and B in opposite directions.
  • the disc brushes 20 and 21 are driven with their shafts 28 in opposite directions according to arrows C and D and also carry out a rotational movement superimposed on this inherent rotation in the direction of arrow E about an axis 31 which is parallel to and essentially centered between the parallel vertical axes of rotation the plate brushes 20, 21 is arranged.
  • the outer circular path and that of the shafts 28 of the superimposed circular movement are shown in dash-dot lines in FIG. 1. In this way, the side 22 of the workpiece 12 can be machined or deburred evenly over the entire surface.
  • FIG. 2 shows the drive-related mounting and mounting of the vertical plate brushes 20 and 21.
  • a first drive motor 37 is flanged approximately in the middle, the output shaft 38 of which plunges into an intermediate shaft 39 and is connected to the latter in a rotationally fixed manner.
  • the vertical intermediate shaft 39 is non-rotatably connected at its lower free end to a first gear 41 which meshes with a larger second gear 42 which is seated on the same plane and which is non-rotatably connected to a receiving spindle 30 for the shaft 28 of the disk brush 21.
  • the intermediate shaft 39 is rotatably connected at its free end and the first gear 41 adjacent to a third toothed wheel 43 which is connected via a toothed belt 44 to a fourth toothed wheel 45 of larger diameter which is mounted on a receiving spindle 29 for the shaft 28 of the Disc brush 20 sits in a rotationally fixed manner.
  • the second gear 42 and the fourth gear 45 are arranged on opposite sides of the intermediate shaft 39 in such a way that their axes and thus the shafts 28 are at the same distance from the axis of the intermediate shaft 39 and the output shaft 38 of the first drive motor 37.
  • the gear wheels 41, 42, 43 and 45 are dimensioned such that the plate brushes 20 and 21 have approximately the same peripheral speeds.
  • the selected gear transmission from the intermediate shaft 39 to the holding spindle 29 on the one hand and the holding spindle 30 on the other hand ensures that the two disk brushes 20, 21 are driven in opposite directions.
  • a holder 48 is rotatably mounted around the intermediate shaft 39, which is also firmly connected to the output shaft 38 in the axial direction, and is held immovably on the shafts 38, 39 in the axial direction.
  • the holder 48 is provided with two receiving bores 51 parallel thereto, in which the receiving spindles 29, 30 for the shafts 28 of the plate brushes 20, 21 are rotatably mounted and axially held.
  • the holder 48 is non-rotatably connected at its uppermost region 53 to a sprocket 56, which is drivingly connected via a chain 54 to a second sprocket 57 which is arranged in the same plane but at a distance and which is non-rotatably mounted on the output shaft 58 of a second drive motor 59 , which is held stationary on the carrier 36 adjacent to the first motor 37.
  • the holder 48 is surrounded in an upper larger diameter cylindrical part 61 by a coolant supply ring 62 which is held in place on the carrier 36 by means of stud bolts 63.
  • the first motor 37 is used to drive the plate brushes 20, 21 in opposite directions about their own axes
  • the second motor 59 is used to achieve a superimposed rotary movement of the pair of plate brushes 20, 21 about the axis of the intermediate shaft 39, which at the same time is that of the holder 48 is.
  • This drive transmission or transmission unit which is described as a planetary head 64, is surrounded by a housing 66 connected to the carrier 36, from whose underside 67 the two holding spindles 29 and 30 for the shafts 28 of the disk brushes 20 and 21 protrude.
  • the identically designed, vertical plate brushes 20, 21 can be clamped with their shank 28 in the respective holding spindle 29, 30 in a rotationally fixed manner and firmly in the axial direction.
  • the lower end of the shaft 28 is fixedly connected to a holding plate 72, on which a plate 74 is firmly held, which holds bristles 75 in the form of a plurality of bundles 76 along an annular ring.
  • connection of the holding plate 72 and the plate 74 takes place by means of cylindrical pins 73 distributed over the outer circumference and by means of a central fastening screw 77 which is screwed into the holding plate 72 from below within the central recess 78 of the annular plate 74 and a recessed ring edge via a profiled disk 79 81 of the annular plate 74 presses against the holding plate 72.
  • the bristles are made of plastic, preferably polyamide, and are covered with abrasive particles, for example corundum, SiC, or the like, over substantially their entire length. Particles occupied.
  • These bristles 75 which are combined in bundles 76, are clamped at one end in the ring-shaped plate 74, for example cast in or glued in, and can be worn down to about a quarter of their length protruding from the underside of the plate 74.
  • the bristles 75 on the plate 74 are supplied with a cooling liquid, for example in the form of a drilling emulsion or oil.
  • a cooling liquid for example in the form of a drilling emulsion or oil.
  • outlet openings 82 of two diametrically opposed bores 83 are provided in the area of the ring edge 81 and are aligned with corresponding bores 84 in the holding plate 72.
  • the ends of these bores 84 open into a transverse bore 85 of the holding plate 72.
  • the transverse bore 85 is provided at both ends with a sealing plug 86 and crosses the end of an axial blind bore 87 in the shaft 28.
  • This blind bore 87 is shown in FIG of the receiving spindle 29 or 30 provided through bore 88, which emerges opposite the mouth of an axial blind bore 89 in the holder 48.
  • This axial blind hole 89 is opposite the receiving spindle 29, 30 in question and opens into a radial blind hole 90 in the holder 48.
  • These two radial holes 90 open into an inner annular groove 91 in the coolant.
  • Feed ring 62 At one point on the circumference of the feed ring 62, a radial connection bore 92 is provided which opens out into the inner annular groove 91 and is provided at the other end with a screw connection for connection to a coolant supply line, not shown.
  • coolant is supplied to a region of the plate brushes 20, 21 which is adjacent to the inner boundary edge of the annular bristle arrangement and is set back with respect to the plane of exit of the bristles from the underside of the plate 74. In this way, a uniform distribution of the coolant over the entire surface of the plate brush area provided with the bristles 75 results during the rotation due to the centrifugal forces.
  • FIG. 4 shows the coolant supply to the horizontal plate brushes 16-19 using one of these plate brushes of the two pairs.
  • the structure of these horizontal plate brushes 16-19 is the same except that their diameter is smaller than that of the vertical plate brushes; therefore the reference numerals also valid for this, as used in FIG. 3, are provided with a dash in FIG. 4.
  • the coolant supply is identical, except for the fact that the receiving spindle 29 for the shaft 27 of the plate brush 16 - 19 is directly surrounded by a corresponding coolant supply ring, which is connected in a corresponding manner to the outlet openings 82 via an inner annular groove and bores .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

A machine (11) for deburring work pieces (12) is provided with a table (26) for clamping the work pieces and with at least one pair of disc-type brushes (20, 21) which are arranged side-by-side, have plastic bristles (75) having an abrasive layer, are rotationally driven in opposite directions about their parallel axis (18) and are held on a planetary head to perform a common rotational movement about a common centre axis, which common rotational movement is superimposed on these separate rotational movements. In order to slow down the heating of the plastic bristles (75) in a machine of this type, provision is made for the disc-type brushes (20, 21) to be connected to a coolant feed via their shank (28) and to be provided with an axially directed coolant-discharge opening (82) arranged around the rotational axis and close to the bristles (75). <IMAGE>

Description

Die vorliegende Erfindung bezieht sich auf eine Maschine zum Entgraten von Werkstücken nach dem Oberbegriff des Anspruchs 1.The present invention relates to a machine for deburring workpieces according to the preamble of claim 1.

Bei derartigen Entgratmaschinen, die Kunststoffborsten verwenden, welche mit einem Schleifmittel besetzt sind, besteht ein gewisses Problem in der Wärmealterung des für die Borsten verwendeten Polyamids. Dies bedeutet, daß u.U. eine Verschlechterung der Tellerbürsten durch Wärmealterung eintritt, bevor die Borsten der Tellerbürste bis hin zu ihrer Verschleißgrenze abgetragen sind.In such deburring machines that use plastic bristles that are coated with an abrasive, there is a certain problem in the heat aging of the polyamide used for the bristles. This means that the plate brushes deteriorate due to heat aging before the bristles of the plate brush are worn down to their wear limit.

Aufgabe der vorliegenden Erfindung ist es, eine Maschine zum Entgraten von Werkstücken der eingangs genannten Art zu schaffen, bei der die Wärmealterung der Kunststoffborsten der Tellerbürsten verlangsamt ist.The object of the present invention is to provide a machine for deburring workpieces of the type mentioned in the introduction, in which the heat aging of the plastic bristles of the plate brushes is slowed down.

Zur Lösung dieser Aufgabe sind bei einer Maschine zum Entgraten von Werkstücken der genannten Art die im Kennzeichen des Anspruchs 1 angegebenen Merkmale vorgesehen.To achieve this object, the features specified in the characterizing part of claim 1 are provided in a machine for deburring workpieces of the type mentioned.

Durch die Verwendung von Kühlmittel, bspw, in Form von Bohremulsion oder Öl an den Tellerbürsten ist es möglich, den Grad der Wärmealterung der Kunststoffborsten wesentlich zu reduzieren, so daß die Kunststoffborsten länger halten und daher ohne weiteres solange eingesetzt werden können, bis die Borsten bis hin zu Ihrer Verschleißgrenze durch die Bearbeitungsvorgänge abgetragen sind.By using coolant, for example, in the form of drilling emulsion or oil on the plate brushes, it is possible to significantly reduce the degree of heat aging of the plastic bristles, so that the plastic bristles last longer and can therefore be used without further ado until the bristles up to are worn down to your wear limit by the machining processes.

Durch die Merkmale des Anspruchs 2 wird erreicht, daß durch die Rotationsbewegung das Kühlmittel über die gesamte Borstenflächen und damit über alle Borsten etwa gleichmäßig verteilt wird, so daß die gleichmäßige Qualität der Borsten an den Tellerbürsten erhalten bleibt.The features of claim 2 ensure that the coolant is distributed approximately uniformly over the entire bristle surfaces and thus over all bristles by the rotational movement, so that the uniform quality of the bristles on the plate brushes is maintained.

Vorteilhafte Ausgestaltungen der Kühlmittelführung zu den Borsten ergeben sich aus den Merkmalen des Anspruchs 3 und/oder 4.Advantageous refinements of the coolant guide to the bristles result from the features of claims 3 and / or 4.

Weitere vorteilhafte Ausführungsformen vorliegender Erfindung ergeben sich gemäß den Merkmalen der Unteransprüche 5 und 6, jeweils ggf. im Zusammenhang mit denen des Anspruchs 7, je nach dem, ob die Tellerbürsten lediglich um ihre eigene Achsen rotierend angetrieben sind, oder ob sie zusätzlich eine gemeinsame überlagerte Bewegung um eine mittige Achse ausführen.Further advantageous embodiments of the present invention result according to the features of subclaims 5 and 6, in each case possibly in connection with that of claim 7, depending on whether the plate brushes are driven only rotating about their own axes or whether they additionally superimposed a common one Carry out movement around a central axis.

Weitere Einzelheiten der Erfindung sind der folgenden Beschreibung zu entnehmen, in der die Erfindung anhand des in der Zeichnung dargestellten Ausführungsbeispieles näher beschrieben und erläutert ist. Es zeigen:

  • Figur 1 in schematischer Draufsicht einen mit horizontalen und vertikalen Paaren von Tellerbürsten versehenen Teil einer Maschine zum Entgraten von Werkstücken gemäß einem bevorzugten Ausführungsbeispiel der Erfindung.
  • Figur 2 in teilweise geschnittener und abgebrochener Seitenansicht des das vertikale Paar Tellerbürsten aufnehmenden Teils der Entgratmaschine nach Fig. 1.
  • Figur 3 in etwas anderem Maßstab den unteren in Fig. 2 abgebrochenen Teil mit den vertikal angeordneten Tellerbürsten teils in Ansicht und teils im Schnitt, was gleichzeitig der Ansicht gemäß Pfeil 111 der Fig. 1 entspricht, und
  • Figur 4 eine teilweise geschnittene Ansicht gemäß Pfeil IV der Fig. 1 der horizontalen Paare von Tellerbürsten.
Further details of the invention can be found in the following description, in which the invention is described and explained in more detail with reference to the embodiment shown in the drawing. Show it:
  • Figure 1 is a schematic plan view of a part of a machine for deburring workpieces provided with horizontal and vertical pairs of plate brushes according to a preferred embodiment of the invention.
  • FIG. 2 shows a partially sectioned and broken side view of the part of the deburring machine according to FIG. 1 that receives the vertical pair of plate brushes.
  • Figure 3 on a slightly different scale, the lower part broken off in Fig. 2 with the vertically arranged plate brushes partly in view and partly in section, which at the same time corresponds to the view according to arrow 111 of FIG. 1, and
  • Figure 4 is a partially sectioned view according to arrow IV of Fig. 1 of the horizontal pairs of plate brushes.

Die in der Zeichnung dargestellte Maschine 11 zum Entgraten von Werkstücken 12 in Form von Gehäusedeckeln ist sowohl mit zwei Paaren von horizontal angeordneten Tellerbürsten 16, 17 bzw. 18, 19 zum Entgraten der Längsseiten 13 und 14 des Werkstücks 12 als auch mit einem vertikal angeordneten Paar Tellerbürsten 20 und 21 versehen, die zum Entgraten der Ober-oder Unterseite 22 des Werkstücks 12 dienen. Während die Paare von Tellerbürsten 16, 17 und 18, 19 mit horizontaler Achse an einem Bereich 23 des nicht dargestellten Maschinenständers einander gegenüberliegend angeordnet sind, sind die Tellerbürsten 20, 21 mit vertikaler Achse an einem dazu benachbarten Bereich 24 des Maschinenständers angeordnet. Zwischen diesen beiden Bereichen 23 und 24 des Maschinenständers ist gemäß Fig. 1 ein Maschinentisch 26 hin und her verfahrbar, auf dem das Werkstück 12 aufspannbar ist, das auf diese Weise an seinen Längsseiten 13, 14 und an seiner Ober- bzw. Unterseite 22 bearbeitet wird. Der hin- und hergehende Antrieb für den Tisch 26 kann in beliebiger bekannter Weise erfolgen.The machine 11 shown in the drawing for deburring workpieces 12 in the form of housing covers is equipped with two pairs of horizontally arranged plate brushes 16, 17 and 18, 19 for deburring the long sides 13 and 14 of the workpiece 12 as well as with a vertically arranged pair Disc brushes 20 and 21 are provided, which are used for deburring the top or bottom 22 of the workpiece 12. While the pairs of plate brushes 16, 17 and 18, 19 with a horizontal axis are arranged opposite one another in a region 23 of the machine stand (not shown), the plate brushes 20, 21 with a vertical axis are arranged in an adjacent region 24 of the machine stand. According to FIG. 1, a machine table 26 can be moved back and forth between these two areas 23 and 24 of the machine stand, on which the workpiece 12 can be clamped, which in this way processes on its longitudinal sides 13, 14 and on its top and bottom sides 22 becomes. The reciprocating drive for the table 26 can be done in any known manner.

Wie Fig. 1 ferner zu entnehmen ist, sind die Tellerbürstenpaare 16, 17 und 18, 19 mit ihren horizontalen, parallelen Schäften 27 gemäß Pfeilen A und B bzw. A und B gegenlaufend rotierend angetrieben. Die Tellerbürsten 20 und 21 sind mit ihren Schäften 28 gemäß Pfeilen C und D gegenlaufend rotierend angetrieben und führen außerdem eine dieser Eigenrotation überlagerte Drehbewegung in Richtung des Pfeiles E um eine Achse 31 aus, die parallel zu dem und im wesentlichen mittig zwischen den parallelen vertikalen Rotationsachsen der Tellerbürsten 20, 21 angeordnet ist. Die äußere Kreisbahn und diejenige der Schäfte 28 der überlagerten Kreisbewegung sind strichpunktiert in Fig. 1 eingezeichnet. Auf diese Weise kann die Seite 22 des Werkstücks 12 ganzflächig gleichmäßig bearbeitet bzw. entgratet werden.1, the plate brush pairs 16, 17 and 18, 19 are driven with their horizontal, parallel shafts 27 according to arrows A and B or A and B in opposite directions. The disc brushes 20 and 21 are driven with their shafts 28 in opposite directions according to arrows C and D and also carry out a rotational movement superimposed on this inherent rotation in the direction of arrow E about an axis 31 which is parallel to and essentially centered between the parallel vertical axes of rotation the plate brushes 20, 21 is arranged. The outer circular path and that of the shafts 28 of the superimposed circular movement are shown in dash-dot lines in FIG. 1. In this way, the side 22 of the workpiece 12 can be machined or deburred evenly over the entire surface.

Fig. 2 zeigt die antriebsmäßige Halterung und Lagerung der vertikalen Tellerbürsten 20 und 21. An einem Träger 36, der mit dem nicht dargestellten Maschinengestell ortsfest verbunden ist, ist etwa mittig ein erster Antriebsmotor 37 angeflanscht, dessen Abtriebswelle 38 in eine Zwischenwelle 39 eintaucht und mit dieser drehfest verbunden ist. Die vertikale Zwischenwelle 39 ist an ihrem unteren freien Ende mit einem ersten Zahnrad 41 drehfest verbunden, das mit einem auf gleicher Ebene sitzenden, größeren zweiten Zahnrad 42 kämmt, das mit einer Aufnahmespindel 30 für den Schaft 28 der Tellerbürste 21 drehfest verbunden ist. Die Zwischenwelle 39 ist an ihrem freien Ende und dem ersten Zahnrad 41 benachbart mit einem dritten gezahnten Rad 43 drehfest verbunden, das über einen Zahnriemen 44 mit einem vierten gezahnten Rad 45 größeren Durchmessers antriebsmäßig verbunden ist, welches auf einer Aufnahmespindel 29 für den Schaft 28 der Tellerbürste 20 drehfest sitzt. Das zweite Zahnrad 42 und das vierte Zahnrad 45 sind an gegenüberliegenden Seiten der Zwischenwelle 39 derart angeordnet, daß ihre Achsen und damit die der Schäfte 28 gleichen Abstand von der Achse der Zwischenwelle 39 bzw. der Abtriebswelle 38 des ersten Antriebsmotors 37 besitzen. Die Zahnräder 41, 42, 43 und 45 sind so bemessen, daß die Tellerbürsten 20 und 21 etwa gleiche Umfangsgeschwindigkeiten besitzen. Durch die gewählte Getriebeübertragung von der Zwischenwelle 39 auf die Aufnahmespindel 29 einerseits und die Aufnahmespindel 30 andererseits ist erreicht, daß die beiden Tellerbürsten 20, 21 gegenläufig angetrieben sind.2 shows the drive-related mounting and mounting of the vertical plate brushes 20 and 21. On a carrier 36, which is fixedly connected to the machine frame (not shown), a first drive motor 37 is flanged approximately in the middle, the output shaft 38 of which plunges into an intermediate shaft 39 and is connected to the latter in a rotationally fixed manner. The vertical intermediate shaft 39 is non-rotatably connected at its lower free end to a first gear 41 which meshes with a larger second gear 42 which is seated on the same plane and which is non-rotatably connected to a receiving spindle 30 for the shaft 28 of the disk brush 21. The intermediate shaft 39 is rotatably connected at its free end and the first gear 41 adjacent to a third toothed wheel 43 which is connected via a toothed belt 44 to a fourth toothed wheel 45 of larger diameter which is mounted on a receiving spindle 29 for the shaft 28 of the Disc brush 20 sits in a rotationally fixed manner. The second gear 42 and the fourth gear 45 are arranged on opposite sides of the intermediate shaft 39 in such a way that their axes and thus the shafts 28 are at the same distance from the axis of the intermediate shaft 39 and the output shaft 38 of the first drive motor 37. The gear wheels 41, 42, 43 and 45 are dimensioned such that the plate brushes 20 and 21 have approximately the same peripheral speeds. The selected gear transmission from the intermediate shaft 39 to the holding spindle 29 on the one hand and the holding spindle 30 on the other hand ensures that the two disk brushes 20, 21 are driven in opposite directions.

Um die Zwischenwelle 39, die auch in axialer Richtung mit der Abtriebswelle 38 fest verbunden ist, ist ein Halter 48 drehbar gelagert und in axialer Richtung an den Wellen 38, 39 unverrückbar gehalten. In gleichmäßigem Abstand von seiner Lagerbohrung 49 ist der Halter 48 mit zwei dazu parallelen Aufnahmebohrungen 51 versehen, in denen die Aufnahmespindeln 29, 30 für die Schäfte 28 der Tellerbürsten 20, 21 drehbar gelagert und axial festgehalten sind. Der Halter 48 ist an seiner obersten Bereich 53 mit einem Kettenrad 56 drehfest verbunden, das über eine Kette 54 mit einem in gleicher Ebene, jedoch in einem Abstand angeordneten zweiten Kettenrad 57 antriebsmäßig verbunden ist, welches auf der Abtriebswelle 58 eines zweiten Antriebsmotors 59 drehfest sitzt, der am Träger 36 dem ersten Motor 37 benachbart ortsfest gehalten ist. Der Halter 48 ist in einem oberen durchmessergrößeren zylindrischen Teil 61 von einem Kühlmittel-Zuführring 62 umgeben, der mittels Stehbolzen 63 am Träger 36 ortsfest gehalten ist.A holder 48 is rotatably mounted around the intermediate shaft 39, which is also firmly connected to the output shaft 38 in the axial direction, and is held immovably on the shafts 38, 39 in the axial direction. At a constant distance from its bearing bore 49, the holder 48 is provided with two receiving bores 51 parallel thereto, in which the receiving spindles 29, 30 for the shafts 28 of the plate brushes 20, 21 are rotatably mounted and axially held. The holder 48 is non-rotatably connected at its uppermost region 53 to a sprocket 56, which is drivingly connected via a chain 54 to a second sprocket 57 which is arranged in the same plane but at a distance and which is non-rotatably mounted on the output shaft 58 of a second drive motor 59 , which is held stationary on the carrier 36 adjacent to the first motor 37. The holder 48 is surrounded in an upper larger diameter cylindrical part 61 by a coolant supply ring 62 which is held in place on the carrier 36 by means of stud bolts 63.

Auf diese Weise dient der erste Motor 37 zum gegenläufig rotierenden Antreiben der Tellerbürsten 20, 21 um ihre eigenen Achsen und der zweite Motor 59 zum Erreichen einer überlagerten Drehbewegung des Paares von Tellerbürsten 20, 21 um die Achse der Zwischenwelle 39, die gleichzeitig die des Halters 48 ist.In this way, the first motor 37 is used to drive the plate brushes 20, 21 in opposite directions about their own axes, and the second motor 59 is used to achieve a superimposed rotary movement of the pair of plate brushes 20, 21 about the axis of the intermediate shaft 39, which at the same time is that of the holder 48 is.

Diese beschriebene, als Planetenkopf 64 zu bezeichnende Antriebsübertragungs- bzw. Getriebeeinheit ist von einem mit dem Träger 36 verbundenen Gehäuse 66 umgeben, aus dessen Unterseite 67 die beiden Aufnahmespindeln 29 und 30 für die Schäfte 28 der Tellerbürsten 20 und 21 hervorragen.This drive transmission or transmission unit, which is described as a planetary head 64, is surrounded by a housing 66 connected to the carrier 36, from whose underside 67 the two holding spindles 29 and 30 for the shafts 28 of the disk brushes 20 and 21 protrude.

Die identisch ausgebildeten, vertikalen Tellerbürsten 20, 21 können mit ihrem Schaft 28 in die betreffende Aufnahmespindel 29, 30 drehfest und in axialer Richtung fest eingespannt werden. Das untere Ende des Schaftes 28 ist mit einer Halteplatte 72 fest verbunden, an welcher ein Teller 74 fest gehalten ist, der Borsten 75 in Form einer Vielzahl von Bündeln 76 längs eines Kreisringes hält. Die Verbindung von Halteplatte 72 und Teller 74 erfolgt mittels über den Außenumfang verteilt angeordneten Zylinderstiften 73 und mittels einer mittigen Befestigungsschraube 77, die innerhalb der mittigen Ausnehmung 78 des kreisringförmigen Tellers 74 von unten in die Halteplatte 72 eingeschraubt ist und über eine Profilscheibe 79 einen zurückgesetzten Ringrand 81 des kreisringförmigen Tellers 74 gegen die Halteplatte 72 drückt.The identically designed, vertical plate brushes 20, 21 can be clamped with their shank 28 in the respective holding spindle 29, 30 in a rotationally fixed manner and firmly in the axial direction. The lower end of the shaft 28 is fixedly connected to a holding plate 72, on which a plate 74 is firmly held, which holds bristles 75 in the form of a plurality of bundles 76 along an annular ring. The connection of the holding plate 72 and the plate 74 takes place by means of cylindrical pins 73 distributed over the outer circumference and by means of a central fastening screw 77 which is screwed into the holding plate 72 from below within the central recess 78 of the annular plate 74 and a recessed ring edge via a profiled disk 79 81 of the annular plate 74 presses against the holding plate 72.

Die Borsten sind aus Kunststoff, vorzugsweise Polyamid und sind über im wesentlichen ihre gesamte Länge mit Schleifmittelteilchen, bspw. Korrund-, SiC-, o.dgl. Partikeln besetzt. Diese Borsten 75, die in Bündeln 76 zusammengefasst sind, sind einendig im ringförmigen Teller 74 eingespannt, bspw. eingegossen oder eingeklebt, und sind bis auf etwa ein Viertel ihrer aus der Unterseite des Tellers 74 herausragenden Länge abnutzbar.The bristles are made of plastic, preferably polyamide, and are covered with abrasive particles, for example corundum, SiC, or the like, over substantially their entire length. Particles occupied. These bristles 75, which are combined in bundles 76, are clamped at one end in the ring-shaped plate 74, for example cast in or glued in, and can be worn down to about a quarter of their length protruding from the underside of the plate 74.

Die Borsten 75 am Teller 74 werden mit einer Kühlflüssigkeit, bspw. in Form einer Bohremulsion oder Öl versorgt. Dazu sind im Bereich des Ringrandes 81 Austrittsöffnungen 82 zweier diametral einander gegenüberliegender Bohrungen 83 vorgesehen, die mit entsprechenden Bohrungen 84 in der Halteplatte 72 fluchten. Die Enden dieser Bohrungen 84 münden in eine Querbohrung 85 der Halteplatte 72. Die Querbohrung 85 ist an ihren beiden Enden mit einem Dichtstopfen 86 versehen und kreuzt das Ende einer axialen Sacklochbohrung 87 im Schaft 28. Diese Sacklochbohrung 87 ist gemäß Fig. 2 mit einer in der Aufnahmespindel 29 bzw. 30 vorgesehenen Durchgangsbohrung 88 in Verbindung, die gegenüber der Mündung einer axialen Sacklochbohrung 89 im Halter 48 austritt.The bristles 75 on the plate 74 are supplied with a cooling liquid, for example in the form of a drilling emulsion or oil. For this purpose, outlet openings 82 of two diametrically opposed bores 83 are provided in the area of the ring edge 81 and are aligned with corresponding bores 84 in the holding plate 72. The ends of these bores 84 open into a transverse bore 85 of the holding plate 72. The transverse bore 85 is provided at both ends with a sealing plug 86 and crosses the end of an axial blind bore 87 in the shaft 28. This blind bore 87 is shown in FIG of the receiving spindle 29 or 30 provided through bore 88, which emerges opposite the mouth of an axial blind bore 89 in the holder 48.

Diese axiale Sacklochbohrung 89 liegt der betreffenden Aufnahmespindel 29, 30 gegenüber und mündet in eine radiale Sacklochbohrung 90 im Halter 48. Diese beiden radialen Bohrungen 90 münden in eine innere Ringnut 91 im Kühlmittel-Zuführring 62. An einer Stelle des Umfanges des Zuführringes 62 ist eine radiale Anschlußbohrung 92 vorgesehen, die innen in die innere Ringnut 91 mündet und am anderen Ende mit einer Anschlußverschraubung zum Anschluß an eine nicht dargestellte Kühlmittelzuführleitung versehen ist. Auf diese Weise wird Kühlmittel einem Bereich der Tellerbürsten 20, 21 zugeführt, der dem inneren Begrenzungsrand der ringförmigen Borstenanordnung benachbart ist und gegenüber der Austrittebene der Borsten aus der Unterseite des Tellers 74 zurückgesetzt ist. Auf diese Weise ergibt sich während der Rotation aufgrund der Fliehkräfte eine gleichmäßige Verteilung des Kühlmittels über die gesamte Fläche des mit den Borsten 75 versehenen Tellerbürstenbereichs.This axial blind hole 89 is opposite the receiving spindle 29, 30 in question and opens into a radial blind hole 90 in the holder 48. These two radial holes 90 open into an inner annular groove 91 in the coolant. Feed ring 62. At one point on the circumference of the feed ring 62, a radial connection bore 92 is provided which opens out into the inner annular groove 91 and is provided at the other end with a screw connection for connection to a coolant supply line, not shown. In this way, coolant is supplied to a region of the plate brushes 20, 21 which is adjacent to the inner boundary edge of the annular bristle arrangement and is set back with respect to the plane of exit of the bristles from the underside of the plate 74. In this way, a uniform distribution of the coolant over the entire surface of the plate brush area provided with the bristles 75 results during the rotation due to the centrifugal forces.

Figur 4 zeigt die Kühlmittelzuführung zu den horizontalen Tellerbürsten 16 - 19 anhand jeweils einer dieser Tellerbürsten der beiden Paare. Der Aufbau dieser horizontalen Tellerbürsten 16 - 19 ist bis auf die Tatsache, daß deren Durchmesser kleiner ist als der der vertikalen Tellerbürsten derselbe; deshalb sind die auch hierfür gültigen Bezugszeichen, wie sie in Fig. 3 verwendet sind, in Fig. 4 mit einem Strich versehen. Auch die Kühlmittelzuführung ist identisch, bis auf die Tatsache, daß die Aufnahmespindel 29 für den Schaft 27 der Tellerbürste 16 - 19 unmittelbar von einem entsprechenden Kühlmittel-Zuführring umgeben ist, der in entsprechender Weise über eine innere Ringnut und Bohrungen mit den Austrittsöffnungen 82 verbunden ist.FIG. 4 shows the coolant supply to the horizontal plate brushes 16-19 using one of these plate brushes of the two pairs. The structure of these horizontal plate brushes 16-19 is the same except that their diameter is smaller than that of the vertical plate brushes; therefore the reference numerals also valid for this, as used in FIG. 3, are provided with a dash in FIG. 4. The coolant supply is identical, except for the fact that the receiving spindle 29 for the shaft 27 of the plate brush 16 - 19 is directly surrounded by a corresponding coolant supply ring, which is connected in a corresponding manner to the outlet openings 82 via an inner annular groove and bores .

Claims (7)

1 Maschine zum Entgraten von Werkstücken, mit einem Tisch zu Aufspannen der Werkstücke, mit mindestens einem Paar nebeneinander angeordneter, einen Schleifmittelbelag besitzende Borsten, vorzugsweise Kunststoffborsten aufweisenden Tellerbürsten, die um ihre parallelen Achsen gegenläufig rotierend angetrieben sind und die ggf. zur Ausführung einer diesen Eigenrotationsbewegungen überlagerten gemeinsamen Rotationsbewegung um eine gemeinsame mittlere Achse an einem Planetenkopf gehalten sind, dadurch gekennzeichnet, daß die Tellerbürsten (16-21) einzeln oder gemeinsam über ihren Schaft (27-29) mit einer Kühlmittelzuführung verbunden und mit um die Rotationsachse angeordneten, axial gerichteten Kühlmittel-Austrittsöffnungen (82) nahe bzw. im Bereich der Borsten (75) versehen sind.1 machine for deburring workpieces, with a table for clamping the workpieces, with at least one pair of bristles arranged next to one another and having an abrasive coating, preferably plastic bristles with disc brushes, which are driven in opposite directions rotating about their parallel axes and which, if necessary, perform these self-rotating movements superimposed common rotational movement about a common central axis are held on a planetary head, characterized in that the plate brushes (16-21) are connected individually or together via their shaft (27-29) to a coolant supply and to axially directed coolant arranged around the axis of rotation Outlet openings (82) are provided near or in the region of the bristles (75). 2. Maschine, bei der die Tellerbürste mit einem Kranz von Borsten versehen sind, nach Anspruch 1, dadurch gekennzeichnet, daß die Kühlmittel-Austrittsöffnungen (82) im borstenfreien Bereich nahe dem inneren Rand des Bürstenkranzes und gegenüber dessen Ebene axial zurückversetzt angeordnet sind.2. Machine in which the plate brush is provided with a ring of bristles according to claim 1, characterized in that the coolant outlet openings (82) are arranged axially set back in the bristle-free area near the inner edge of the brush ring and with respect to its plane. 3. Maschine nach Anspruch 2, dadurch gekennzeichnet, daß der Schaft (27-29) der Tellerbürsten (16-21) mit einer axialen Bohrung (88) versehen ist, die über mindestens eine Querbohrung (85) in einem Tellerhalter (72) in radial versetzte, axiale Bohrungen (83,84) des Tellerhalters (72) mündet, welche zu den Austrittsöffnungen (82) führen.3. Machine according to claim 2, characterized in that the shaft (27-29) of the plate brushes (16-21) is provided with an axial bore (88) which has at least one transverse bore (85) in a plate holder (72) radially offset, axial bores (83, 84) of the plate holder (72) which lead to the outlet openings (82). 4. Maschine nach Anspruch 3, dadurch gekennzeichnet, daß die Austrittsöffnungen (82) an axialen Bohrungen (83) im die Borsten (75) haltenden Teller (74) vorgesehen sind, die mit den axialen Bohrungen (84) im Tellerhalter (72) fluchten.4. Machine according to claim 3, characterized in that the outlet openings (82) are provided on axial bores (83) in the bristles (75) holding plate (74) which are aligned with the axial bores (84) in the plate holder (72) . 5. Maschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Aufnahmespindel (29 ,30) für den Schaft (27) der Tellerbürste (16-19) an ihrem Ende von einem ortsfest gehaltenen Kühlmittel-Zuführring umgeben ist, der eine innere Ringnut aufweist.5. Machine according to one of the preceding claims, characterized in that the receiving spindle (29, 30) for the shaft (27) of the plate brush (16-19) is surrounded at its end by a stationary coolant supply ring which has an inner annular groove having. 6. Maschine nach einem der Ansprüche 1 - 4, dadurch gekennzeichnet, daß die parallelen Aufnahmespindeln (29,30) für die Schäfte (28,29) Tellerbürsten (20,21) in einem Halter (48) des Planetenkopfes (64) drehbar gelagert sind und daß der Halter (48) um die mittige Achse an einem Träger (36) für den Planetenkopf (64) drehbar gelagert und von einem gemeinsamen Kühlmittel-Zuführring (62), der orstfest am Träger (36) gehalten ist, umgeben ist.6. Machine according to one of claims 1-4, characterized in that the parallel mounting spindles (29,30) for the shafts (28,29) disc brushes (20,21) in a holder (48) of the planetary head (64) rotatably mounted and that the holder (48) is rotatably mounted about the central axis on a carrier (36) for the planetary head (64) and is surrounded by a common coolant supply ring (62) which is held stationary on the carrier (36). 7. Maschine nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß der Kühlmittel-Zuführring (62) eine innere Ringnut (91) aufweist, in die eine Zuführbohrung (92) des Ringes (62) mündet und mit der eine mit der axialen Bohrung im Schaft (71) in Verbindung stehende Querbohrung (90) im Ende der Aufnahmespindel (27) bzw. im Halter (48) in Verbindung steht.7. Machine according to claim 5 or 6, characterized in that the coolant supply ring (62) has an inner annular groove (91) into which a supply bore (92) of the ring (62) opens and with one with the axial bore in Shaft (71) communicating transverse bore (90) in the end of the receiving spindle (27) or in the holder (48) is connected.
EP89102873A 1988-05-19 1989-02-20 Machine for deburring work pieces Expired - Lifetime EP0342315B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8806552U DE8806552U1 (en) 1988-05-19 1988-05-19 Machine for deburring workpieces
DE8806552U 1988-05-19

Publications (3)

Publication Number Publication Date
EP0342315A2 true EP0342315A2 (en) 1989-11-23
EP0342315A3 EP0342315A3 (en) 1991-02-20
EP0342315B1 EP0342315B1 (en) 1994-04-27

Family

ID=6824195

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89102873A Expired - Lifetime EP0342315B1 (en) 1988-05-19 1989-02-20 Machine for deburring work pieces

Country Status (2)

Country Link
EP (1) EP0342315B1 (en)
DE (2) DE8806552U1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0839608A1 (en) * 1996-11-04 1998-05-06 ONIX S.r.l. A polishing and smoothing machine for slabs, tiles and the like.
EP1400294A1 (en) * 2002-09-20 2004-03-24 Niederberger Schleif- und Polierautomaten AG Quick change system for brushing machines
EP1797993A1 (en) * 2005-12-19 2007-06-20 Mechanik Center Erlangen GmbH Machine for deburring
EP1916058A1 (en) 2006-10-24 2008-04-30 Mechanik Center Erlangen GmbH Brush tool
DE102010039137A1 (en) * 2010-08-10 2012-02-16 Dürr Ecoclean GmbH Brush for deburring device, has several rinsing nozzles that are arranged at the longitudinal center axis of the brush main structure so as to pressurize the brush bristles with rinsing medium
CN105324214A (en) * 2013-06-25 2016-02-10 大明化学工业株式会社 Polishing brush and polishing method
CN108067963A (en) * 2016-11-10 2018-05-25 丹阳市佳洮车辆附件厂 A kind of decorative panel notch removes leveling device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE106300T1 (en) * 1989-04-01 1994-06-15 Messer Griesheim Gmbh POLISHING OR GRINDING EQUIPMENT.
DE3940397A1 (en) * 1989-12-06 1991-06-13 Josef Wolfgang Nitsch Deburring holes in ribbed plates - with workpiece on table reciprocating under two abrasive brushes rotating in opposite directions
DE102005061128B3 (en) * 2005-12-19 2007-01-04 Mechanik Center Erlangen Gmbh Deburring device, comprises rotating brush and guiding disk adjustable in height in relation to one another
CN102452027A (en) * 2010-10-19 2012-05-16 苏州春兴精工股份有限公司 Burring device
CN102328255A (en) * 2011-10-11 2012-01-25 益阳市再超粉末冶金有限公司 Powdery metallurgic product deburring device
US9579771B2 (en) * 2013-12-02 2017-02-28 Apple Inc. Flood coolant to through spindle coolant conversion
CN112108947A (en) * 2020-09-28 2020-12-22 姚国成 Automatic grinding device of steel ring

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733562A (en) * 1956-02-07 Wheel spindle for grinding machines
DE1064915B (en) * 1957-10-07 1959-09-10 Richard Holzhaeuser Rotating brush
FR2245169A5 (en) * 1973-09-26 1975-04-18 Bosch Gmbh Robert
JPS58192753A (en) * 1982-04-30 1983-11-10 Nisshin Steel Co Ltd Method and apparatus for cooling grinding brush roll
FR2584011A1 (en) * 1985-06-28 1987-01-02 Renault Brushing head, in particular for machining centres
DE3625144C1 (en) * 1986-07-25 1987-07-02 Schleifring Und Appbau Gmbh Device for transmitting a pressurised fluid
EP0237790A1 (en) * 1986-03-07 1987-09-23 Maschinenfabrik Gehring GmbH & Co. Honing device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733562A (en) * 1956-02-07 Wheel spindle for grinding machines
DE1064915B (en) * 1957-10-07 1959-09-10 Richard Holzhaeuser Rotating brush
FR2245169A5 (en) * 1973-09-26 1975-04-18 Bosch Gmbh Robert
JPS58192753A (en) * 1982-04-30 1983-11-10 Nisshin Steel Co Ltd Method and apparatus for cooling grinding brush roll
FR2584011A1 (en) * 1985-06-28 1987-01-02 Renault Brushing head, in particular for machining centres
EP0237790A1 (en) * 1986-03-07 1987-09-23 Maschinenfabrik Gehring GmbH & Co. Honing device
DE3625144C1 (en) * 1986-07-25 1987-07-02 Schleifring Und Appbau Gmbh Device for transmitting a pressurised fluid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 8, no. 35 (M-276)(1472) 15 Februar 1984, & JP-A-58 192753 (NITSUSHIN SEIKOU K.K.) 10 November 1983, *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0839608A1 (en) * 1996-11-04 1998-05-06 ONIX S.r.l. A polishing and smoothing machine for slabs, tiles and the like.
EP1400294A1 (en) * 2002-09-20 2004-03-24 Niederberger Schleif- und Polierautomaten AG Quick change system for brushing machines
EP1797993A1 (en) * 2005-12-19 2007-06-20 Mechanik Center Erlangen GmbH Machine for deburring
EP1916058A1 (en) 2006-10-24 2008-04-30 Mechanik Center Erlangen GmbH Brush tool
DE102010039137A1 (en) * 2010-08-10 2012-02-16 Dürr Ecoclean GmbH Brush for deburring device, has several rinsing nozzles that are arranged at the longitudinal center axis of the brush main structure so as to pressurize the brush bristles with rinsing medium
CN105324214A (en) * 2013-06-25 2016-02-10 大明化学工业株式会社 Polishing brush and polishing method
US10159331B2 (en) 2013-06-25 2018-12-25 Taimei Chemicals Co., Ltd. Polishing brush and polishing method
CN108067963A (en) * 2016-11-10 2018-05-25 丹阳市佳洮车辆附件厂 A kind of decorative panel notch removes leveling device

Also Published As

Publication number Publication date
DE58907545D1 (en) 1994-06-01
DE8806552U1 (en) 1988-08-11
EP0342315B1 (en) 1994-04-27
EP0342315A3 (en) 1991-02-20

Similar Documents

Publication Publication Date Title
EP0342315B1 (en) Machine for deburring work pieces
DE3035687A1 (en) GRINDING AND POLISHING TOOL
DE102008063228A1 (en) Device for double-sided grinding of flat workpieces
EP1175961A2 (en) Method and apparatus for machining workpiece surfaces
EP0911116B1 (en) Grinding article and mounting device
DE10338682A1 (en) Surface treatment brush finishing tool has bristles of different length
EP0374151B1 (en) Brush head for trimming or brushing machines
EP1663581B1 (en) Tool for machining surfaces, edge areas and contours
DE69103676T2 (en) Spindle drive.
DE102008046086B4 (en) grinding machine
DE19542892C2 (en) Method and device for honing piston races
EP0983825B1 (en) Cup-shaped brush
EP0429074B1 (en) Milling head for smoothing workpieces, specially for copper plate printing cylinders
DE3430380C2 (en)
EP0919331B1 (en) Apparatus for mechanical treatment of flat shaped workpieces
EP0978351A2 (en) Apparatus having vertically orientated lathes
DE2848668A1 (en) MACHINING MACHINE
DE19539082A1 (en) Tool carrier for round jaw rolling tools
DE19519824C2 (en) Cutting machine tools, in particular grinding tools
DE3218009A1 (en) Working tool for achieving as smooth a coating as possible of a workpiece surface
DE19809237B4 (en) Manual working machine for processing surfaces and hard-to-reach corners
DE19549381C2 (en) grinding tool
EP3570704B1 (en) Tool for treating surfaces, edge regions and contours
EP0095515B1 (en) Apparatus for dosing flocks
DE3837172A1 (en) Tool arrangement for machining internal workpiece surfaces

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE FR GB IT LI SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE FR GB IT LI SE

17P Request for examination filed

Effective date: 19910808

17Q First examination report despatched

Effective date: 19930205

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19940427

Ref country code: SE

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19940427

Ref country code: FR

Effective date: 19940427

Ref country code: GB

Effective date: 19940427

REF Corresponds to:

Ref document number: 58907545

Country of ref document: DE

Date of ref document: 19940601

EN Fr: translation not filed
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19940427

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19990224

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19990429

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000229

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000229

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001201