EP1038633B1 - Vorrichtung zur Schleifbearbeitung von Werkstücken, insbesondere zur Feinstbearbeitung - Google Patents

Vorrichtung zur Schleifbearbeitung von Werkstücken, insbesondere zur Feinstbearbeitung Download PDF

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Publication number
EP1038633B1
EP1038633B1 EP00400755A EP00400755A EP1038633B1 EP 1038633 B1 EP1038633 B1 EP 1038633B1 EP 00400755 A EP00400755 A EP 00400755A EP 00400755 A EP00400755 A EP 00400755A EP 1038633 B1 EP1038633 B1 EP 1038633B1
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EP
European Patent Office
Prior art keywords
advance
guide
abrasive
application head
rod
Prior art date
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Expired - Lifetime
Application number
EP00400755A
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English (en)
French (fr)
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EP1038633A1 (de
Inventor
Laurent Pineau
Richard Bonachera
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SPMS Honimatic
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SPMS Honimatic
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    • 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
    • B24B35/00—Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency
    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • 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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • 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

Definitions

  • the present invention relates to a set of machining parts by abrasive, especially superfinishing according to the preamble of claim 1, comprising an abrasive application head against a workpiece, guide means, in advance and pressing the application head against the workpiece, and means for fixing the assembly on a support.
  • abrasive application head against a workpiece comprising guide means, in advance and pressing the application head against the workpiece, and means for fixing the assembly on a support.
  • guide means in advance and pressing the application head against the workpiece, and means for fixing the assembly on a support.
  • US-A-4,575,972 An example of such an assembly is shown in US-A-4,575,972.
  • abrasive belt superfinishing units which are limited to abrasive functions and are intended to be mounted for example on a lathe, in place of a tool holder, or on a bench for the creation of a special superfinishing machine simple, efficient and inexpensive.
  • a unitary assembly comprising an abrasive belt application head, means for advancing and thrusting the application head, means for scrolling the abrasive belt. , as well as the corresponding drive and control means.
  • the assembly comprises a casing inside which are grouped the means of advance and pressure of the application head and the drive and control means, which casing bearing on one lateral side means for fixing it on a support and bearing on the opposite lateral side, the abrasive application head and the winding and winding coils of the abrasive belt passing over the application head.
  • this unit unit known is relatively large, so bulky, bulky, and heavy, so difficult to transport and also to mount, for example on a tower where the available space is often restricted.
  • the abrasive application head is cantilevered with respect to the fastening means of the assembly on the support and also with respect to the means guide, advance and pressure of the head, located inside the housing. This results in a lack of precision to which even an oversizing necessarily resulting in an increase in weight and cost would only provide an imperfect solution.
  • the present invention relates to a set of machining parts by abrasive which is distinguished by an architecture to both increase the accuracy and reduce the volume, therefore the size and weight of all and, therefore , to simplify the transport as well as the mounting on a support.
  • the set of machining parts by abrasive, including superfinishing, object of the invention comprises the features of claim 1.
  • an application head of an abrasive against a workpiece means of advance and pressure of the abrasive application head against the workpiece and means for fixing the assembly on a support.
  • the abrasive application head and the advance and pressure means of the head are aligned.
  • the machining assembly can be very narrow, so that the overhang that can exist between the abrasive application head and the attachment means of the assembly on the support can be very small.
  • the machining assembly according to the invention can have a particularly simple structure in that the means of guidance, advance and pressure of the application head comprise a fluid cylinder whose cylinder is secured to an advance guide which carries the fixing means and wherein the piston rod of the cylinder is movable in translation axial being immobilized angularly.
  • the machining assembly comprises oscillation means of the application head, to animate the latter with an oscillation movement perpendicular to the direction of advance and pressure.
  • Said oscillation means comprise, between the plunger rod of the feed and pressure ram and the abrasive application head, an oscillation guide and an oscillation rod mounted to move in axial translation in said guide of oscillation. oscillation being immobilized angularly in the latter, a first of these elements, preferably the oscillation rod, being integral with the piston rod of the advance and pressure ram and the second element, preferably the guide of oscillation, being integral with the abrasive application head such that the axis of oscillation is perpendicular to the axis of advance and pressure.
  • the assembly further comprises driving means for animating one of the oscillation elements, preferably the oscillation guide, with oscillation movement along its axis.
  • the piston rod of the advance and pressure cylinder is hollow and traversed by a drive shaft acting by an eccentric system on the oscillation guide to animate the latter of an oscillation movement.
  • the piston rod of the advance and pressure cylinder is advantageously a square rod mounted to move axially in a guide constituted by a socket of square section.
  • the combination of such a rod and such a socket which can also be chosen advantageously for the two elements of the oscillation means, automatically ensures the angular immobilization of the rod relative to the sleeve, and vice versa.
  • the square section bushing may be a rolling bushing, in particular a ball bushing.
  • a rolling bushing in particular a ball bushing.
  • Such square ball bushings that provide high precision guidance, high load capacity and low friction, are well known and are marketed, for example, by the company TECHNOMETAL under the name "SOCKET BALLS QUAD”.
  • the machining assembly can be used either for honing machining, with an agglomerated abrasive attached to the application head, or for abrasive belt machining, in which case machining assembly is completed by an abrasive belt scrolling system during machining comprising a new web rewinding reel, a used web rewinding reel, and a rotation spooling system of the rewinding spool , the abrasive application head comprising a bearing roller which applies the abrasive belt against the workpiece.
  • the unwinding reel is advantageously mounted on the abrasive application head so as to participate in the oscillation movement of this head.
  • both the unwinding reel and the abrasive belt winding reel are movable in translation in the direction of advance with the abrasive application head. This ensures that the abrasive belt always has a constant tension, regardless of the forward (and backward) movements of the application head.
  • the abrasive machining assembly into two modules, namely a module machining unit which groups together the abrasive application head, the guide, advance and pressure means of this head and, where appropriate, the abrasive belt running means, and a motorization module and power supply which groups together all the drive motors and the control and power supply means, the two modules being able to be coupled by flexible disconnectable connection means, namely flexible hoses for feeding the advance and thrust ram, a flexible shaft for the oscillation of the abrasive application head and, where appropriate, a flexible shaft for the abrasive belt.
  • This dividion makes it possible to obtain two relatively light modules that are easy to transport, and the machining module, because of the absence of any incorporated means of motorization, can be even more compact and therefore easier to mount on a given support. .
  • an abrasive machining assembly in this case a continuously running abrasive belt superfinishing assembly, comprises a machining module 1 and a motorization, control and feeding module 2.
  • two modules 1 and 2 are interconnected by flexible and disconnectable connecting means consisting of two flexible pipes 3, a first flexible shaft 4 and a second flexible shaft 5.
  • the module 2 shown in the form of a bag 6 with a carrying handle 7 encloses pressurized fluid supply means (not shown), an electric motor 8 and a geared motor 9.
  • the machining module 1 comprises a guide 10 in the form of a square ball socket serving as a guide for a rod 11 of square outer profile.
  • the cylinder 12 of a fluid cylinder is connected to the rear end of the guide 10 or an intermediate piece 10a interposed between the cylinder 12 and the guide 10, the piston rod 13 of this jack being constituted by the extension towards the back of the rod 11 mounted in the guide 10.
  • the rod 11 is hollow and is traversed by a drive shaft 14 which drives, at the front end of the rod 11, an eccentric system 15.
  • the eccentric system 15 prints, under the effect of the rotation of the shaft 14, a linear oscillation movement to a guide 16 constituted by a square ball bushing mounted to move in translation along an axis perpendicular to the axis of the rod 11, on a square rod 17 fixed by a yoke 18 to the front end of the rod 11.
  • the guide 16 carries, via a clevis 19, a pressure roller 20 whose function is to apply against a workpiece not shown, in particular a piece of revolution nentra fine interée in rotation about its axis, an abrasive belt 21 which is removed from a reeling reel 22 and passes on the roller 20, under the winding movement printed to a winding reel 23 by a gearbox 24.
  • the two coils 22 and 23 are mounted, one at the front on the guide 16 via a support 25 and the other at the rear on the rod 11 by means of a support 26 so as to participate both in the translation movements produced by the jack 12, 13, the coil 22 further participating in the oscillation movement communicated to the pressure roller 20 by the eccentric system 15.
  • the unwinding reel 22 comprises a braking system 27 (see FIG. 6) by which the abrasive belt 21 always remains stretched between the unwinding reel 22 and the winding reel 23.
  • the flexible hoses 3 going from the module 2 to the module 1 serve to supply fluid to the jack 12, 13.
  • the flexible shaft 4 transmits the rotational movement of the motor 8 to the shaft 14, thus to the eccentric system 15.
  • the flexible shaft 5 transmits the rotational movement of the geared motor 9 to the gearbox 24 serving to drive the winding spool 23.
  • the fixing of the machining module 1 on a support is carried out, for example by fastening means 28 provided laterally on the guide 10 or on the intermediate piece 10a, or on one side, as shown in solid lines in the figures 2, 4 and 5, on the opposite side.
  • the gearbox 24 for driving the winding spool 23 may be arranged either on one side or the other of this spool, as shown in solid lines and in phantom in FIGS. 4.
  • the machining module 1 has a remarkable architecture in particular by the alignment of the abrasive application head (pressure roller 20), guide means (guide 10, rod 11) and means of advance and of push (cylinder 12, 13), hence an absence of cantilever between these elements and a very small overhang of the abrasive application head (20) relative to the fastening means 28 .
  • the cylinder 12, 13 is circular section could be replaced by one or two rectangular cylinders, of known type per se, interposed (s) directly between the guide 10 and the support 26 of the coil 23, these rectangular cylinders adapt better to the rectangular shape of the guide 10.
  • the flexible shaft connections 4, 5 between the two modules 1, 2 could be omitted and the drive motors can be transferred to the module 1, in the case where the congestion and weight problems of the module 1 would be considered less penalizing.

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

Claims (9)

  1. Bearbeitungsmaschine zum Schleifen von Werkstücken, insbesondere zur Superfinishbearbeitung, zu der gehören: ein Kopf (19, 20) um ein Schleifmittel gegen ein zu bearbeitendes Werkstück zur Einwirkung zu bringen, Führungs-, Vorschub- und Andruckmittel (10, 11), um den Kopf gegen das zu bearbeitende Werkstück anzudrücken, und Mittel (28) zur Befestigung der Einheit an einem Maschinenbett, wobei die Führungsmittel (10, 11) eine Vorschubführung (10) und eine Vorschub- und Druckstange (11) enthält, die in der Führung in axialer Richtung beweglich gelagert ist und den Schleifmittelanwendungskopf (19, 20) trägt, wobei das Vorschub- und Druckmittel (12, 13) wenigstens einen Druckmittelzylinder (12, 13) aufweist, der in Reihe mit dem Führungsmittel (10, 11) und dem Schleifmittelanwendungskopf (19, 20) angeordnet ist, wobei die Vorschub- und Druckstange (11) gegenüber der Führung (10) drehgesichert ist, und wobei die Führung das Befestigungsmittel (28) trägt, dadurch gekennzeichnet, dass die Einheit außerdem Schwingeinrichtungen enthält, zu der eine zwischen der Vorschub- und Druckstange (11) und dem Schleifmittelanwendungskopf (19, 20) angeordnete eine Schwingführung (16) und einen in der Schwingführung (16) gelagerte Schwingstange (17) gehören, die axial verschiebbar und gegenüber der Schwingführung (16) drehgesichert ist, wobei ein erstes dieser Elemente mit der Vorschub- und Druckstange (11) starr verbunden ist, und das zweite Element mit dem Schleifmittelanwendungskopf (19, 20) derart starr verbunden ist, dass die Schwingachse zu der Vorschub- und Druckachse senkrecht verläuft, und die Einheit Antriebsmittel (14, 15) aufweist, die dazu dienen, das zweite der Elemente in eine Schwingungsbewegung entlang seiner Achse zu bringen.
  2. Einheit nach Anspruch 1, dadurch gekennzeichnet, dass die Schwingstange (17) mit der Vorschub- und Druckstange (11) starr verbunden ist, und dass die Schwingführung (16) mit dem Schleifmittelanwendungskopf (19, 20) starr verbunden ist.
  3. Einheit nach Anspruch 2, dadurch gekennzeichnet, dass die Vorschub- und Druckstange (11) hohl ist und durch sie eine Antriebswelle (14) führt, die über ein Exzentersystem auf die Schwingführung (16) wirkt, um letztere in eine Schwingungsbewegung zu bringen.
  4. Einheit gemäß einem oder mehreren der vorausgehenden Ansprüche, dadurch gekennzeichnet, dass die Stange (11, 17) eine Vierkantstange ist, die axial verschiebbar in einer Büchse (10, 16) mit quadratischem Querschnitt, vorzugsweise einer Wälzkörperführungsbüchse, insbesondere einer Kugelführungsbüchse gelagert ist.
  5. Einheit gemäß einem oder mehreren der vorausgehenden Ansprüche, zur maschinellen Bandschleifbearbeitung mittels eines Systems zum Vorbeiziehen eines Schleifbands während der maschinellen Bearbeitung, wobei zu der Einheit gehören: eine Vorratsspule mit unverbrauchtem Band, eine Aufwickelspule für verbrauchtes Band und ein System zum drehenden Antrieb der Aufwickelspule, wobei der Schleifmittelanwendungskopf eine Andruckrolle enthält, die das Schleifband gegen das zu bearbeitenden Werkstück andrückt, dadurch gekennzeichnet, dass die Vorratsspule (22) an dem Schleifmittelanwendungskopf (19, 20) so angebracht ist, dass sie an der Schwingbewegung dieses Kopfes teilnimmt.
  6. Einheit nach Anspruch 5, dadurch gekennzeichnet, dass die Vorratsspule (22) und die Aufwickelspule (23) für das Schleifband (21) in Vorschubrichtung zusammen mit dem Schleifmittelanwendungskopf (19, 20) translatorisch verschiebbar gelagert sind.
  7. Einheit nach einem oder mehreren der vorausgehenden Ansprüche, dadurch gekennzeichnet, dass die Einheit in ein Bearbeitungsmodul (1), das den Schleifmittelanwendungskopf (19,20), die Führungs-, Vorschub- und Andruckeinrichtung (10 bis 14), das Befestigungsmittel (28) und gegebenenfalls das Schleifbandtransportsystem (22,23,24) enthält, und in ein Antriebs-, Versorgungs- und Steuerungsmodul (2) unterteilt ist, das die Antriebsmotoren (8,9) und die Steuerungs- und Versorgungsmittel enthält, wobei die beiden Module (1, 2) durch lösbare elastische Befestigungsmittel (3, 4, 5) verbunden sein können.
  8. Einheit nach einem oder mehreren der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass die Führungs-, Vorschub- und Andruckeinrichtung einen Druckmittelzylinderder (12,13) aufweist, dessen Kolbenstange (13) durch die Verlängerung der Vorschub- und Führungsstange (11) gebildet ist.
  9. Einheit nach einem beliebigen der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass die Führungs-, Vorschub- und Druckeinrichtung einen oder zwei rechteckige Druckmittelzylinder aufweist, der (die) zwischen die Vorschubführung (10) und einem Träger (26) auf der Vorschub- und Druckstange (11) angeordnet ist (sind).
EP00400755A 1999-03-23 2000-03-17 Vorrichtung zur Schleifbearbeitung von Werkstücken, insbesondere zur Feinstbearbeitung Expired - Lifetime EP1038633B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9903604 1999-03-23
FR9903604A FR2791292B1 (fr) 1999-03-23 1999-03-23 Ensemble d'usinage de pieces par abrasif, notamment de superfinition

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EP1038633A1 EP1038633A1 (de) 2000-09-27
EP1038633B1 true EP1038633B1 (de) 2007-02-21

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EP00400755A Expired - Lifetime EP1038633B1 (de) 1999-03-23 2000-03-17 Vorrichtung zur Schleifbearbeitung von Werkstücken, insbesondere zur Feinstbearbeitung

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EP (1) EP1038633B1 (de)
AT (1) ATE354453T1 (de)
DE (1) DE60033459T2 (de)
ES (1) ES2278583T3 (de)
FR (1) FR2791292B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011012337B4 (de) * 2011-02-24 2013-01-24 Thielenhaus Technologies Gmbh Vorrichtung zum Bandfinishen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911627A (en) * 1973-04-21 1975-10-14 Karl Heesemann Belt grinding machine adapted to grind a flat or curved surface

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59156507A (ja) * 1983-02-25 1984-09-05 Ishikawajima Harima Heavy Ind Co Ltd 圧延ロ−ルの研削装置
FR2694902A1 (fr) * 1992-08-18 1994-02-25 Grieshaber Masch Dispositif d'usinage de surfaces.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911627A (en) * 1973-04-21 1975-10-14 Karl Heesemann Belt grinding machine adapted to grind a flat or curved surface

Also Published As

Publication number Publication date
ES2278583T3 (es) 2007-08-16
EP1038633A1 (de) 2000-09-27
ATE354453T1 (de) 2007-03-15
FR2791292A1 (fr) 2000-09-29
DE60033459D1 (de) 2007-04-05
DE60033459T2 (de) 2007-10-31
FR2791292B1 (fr) 2001-04-27

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