EP2708325B1 - Dispositif d'usinage de pièces doté d'une unité de dressage d'outil intégrée - Google Patents

Dispositif d'usinage de pièces doté d'une unité de dressage d'outil intégrée Download PDF

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Publication number
EP2708325B1
EP2708325B1 EP13183628.0A EP13183628A EP2708325B1 EP 2708325 B1 EP2708325 B1 EP 2708325B1 EP 13183628 A EP13183628 A EP 13183628A EP 2708325 B1 EP2708325 B1 EP 2708325B1
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EP
European Patent Office
Prior art keywords
dressing
circular table
central supply
supply station
mandrel
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Active
Application number
EP13183628.0A
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German (de)
English (en)
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EP2708325A1 (fr
Inventor
Thomas Schmitz
Martin Lupp
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.)
Thielenhaus Technologies GmbH
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Thielenhaus Technologies GmbH
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Publication of EP2708325A1 publication Critical patent/EP2708325A1/fr
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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
    • B24B27/00—Other grinding machines or devices
    • B24B27/0069—Other grinding machines or devices with means for feeding the work-pieces to the grinding tool, e.g. turntables, transfer means
    • 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
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/04—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor involving a rotary work-table

Definitions

  • the invention relates to a device for machining workpieces having at least two processing stations and a rotatably mounted rotary table, wherein at least two clamping devices for clamping a workpiece are arranged on the rotary table and the clamped workpieces are transported by a rotary movement of the rotary table in the processing areas of the processing stations ,
  • a device of the aforementioned type is in the DE 100 16 897 A1 described.
  • the technical background of the known device is that in a rotational position of the rotary table several workpieces are machined simultaneously in the processing stations of the device.
  • a finish machining in particular by honing or fine grinding for the removal of deviations and irregularities of a workpiece or production of a smooth surface on such devices usually come as finishing tools, for example rotating cup wheels, honing stones and the like are used.
  • the invention is therefore based on the object to improve a device with the features mentioned in such a way that the time required for dressing the finishing tools used is reduced.
  • the invention provides in its basic idea that on the rotary table between two clamping devices at least one, a drive for a dressing tool having dressing for a mounted on a processing station finishing tool is arranged, which by rotation of the rotary table in each of a processing station with a arranged thereon of A dressing station for a fluid to be fed to the dressing unit is arranged fixedly on the device and a plurality of transfer stations connected to each other by a supply line extending along the circumference of the round table on the rotary table Fluid is arranged such that in each of the dressing unit occupied by the dressing position one of the transfer stations to the central supply station is coupled, wherein the dressing unit is connected to one of the transfer stations or the supply line.
  • the invention has the advantage that a removal or replacement of the finishing tools is avoided because the finishing tools can be dressed in their installed in the associated processing station position because the appropriate dressing unit is mounted on the rotary table and by its rotation different processing stations can be associated with the finishing tools arranged thereon, so that the dressing tool is brought in the respective dressing position into contact with the finishing tool to be dressed in each case.
  • the finishing tool due to the realized in each processing station movement possibility in a vertical pitch axis as well as in a radially aligned feed axis different positions are brought to the about the dressing tool associated drive preferably in rotation dressing tool.
  • a particular aspect of the invention is to ensure the fluid supply of the dressing unit in all adjustable dressing positions.
  • a central supply station for the fluid is fixedly arranged on the apparatus on the one hand and on the other hand is arranged on the rotary table a plurality of interconnected by a extending in the circumferential direction of the rotary feed line transfer stations for the fluid, in the respective, on the training of the desired Finishing tool tuned rotary position of the rotary table automatically connect to the stationary central supply station. Since the dressing unit in turn is connected to a transfer station or the supply line, the fluid fed into the supply line from the central supply station via the respectively coupled transfer station is available on the dressing unit as drive medium. From such an arrangement results that a shut-off of the fluid flow in uncoupled state in the region of the central supply station, while the flow path for the fluid is effected by the engagement of central supply station and associated transfer station.
  • the invention also includes the idea of arranging more than one dressing with an associated dressing tool on the rotary table.
  • a further dressing unit can also be connected to a transfer station or the supply line, in which case a control valve must be connected between the dressing unit and the transfer station or the supply line in order to control the different dressing units separately or jointly in each rotational position of the rotary table to be able to.
  • the stationary central supply station is arranged on a radially up to below the round table projecting arm attached to a round column supporting the rotary table and the coupling between the central supply station and arranged on the rotary table transfer stations through the Level of the round table is done.
  • a fixed dressing position of the dressing unit is sufficient, wherein the movement possibilities of the honing stone in the vertical setting axis and in the radial feed axis are usable and sufficient for dressing, it is suitable for dressing the working surface of a cup wheel, to provide additional movement of the dressing unit in the circumferential direction of the rotary table.
  • This can be represented, for example, by virtue of the fact that the rotary table is preferably rotated in its two directions of rotation by a predetermined, limited angle of rotation.
  • the coupling between the central supply station and each transfer station is designed such that in the coupled state, a relative rotation of the rotary table to the central supply station via a predetermined, limited angle of rotation is possible.
  • each a mutually couplable pipe socket is arranged, wherein the pipe sockets are arranged in each case with a rotation angle corresponding movement path in the central supply station and in the transfer stations.
  • the DE 10 2006 019 135 A1 it is known to use a method for wear compensation in the finish machining of workpieces, which is based on the arrangement of a to be approached by the finishing tool reference surface, it is expedient according to an embodiment of the invention to use available on the mandrel surface as a reference surface, there the dimensions of the mandrel and thus the location of such a reference surface are known and do not change during the operating time of the device.
  • the mandrel has at its upper free end in addition to the dressing surface of a spatially remote reference surface for detecting the entering on the cup wheel wear over their use time.
  • the implementation of the method in detail is not the subject of the present invention; in that regard, the disclosure of the DE 10 2006 019 135 A1 directed.
  • the upper free end of the mandrel is stepped with a smaller diameter than the diameter of the mandrel having upstanding step is formed on the surface of the dressing surface for dressing the working surface of the cup wheel is formed, and the reference surface is arranged at the surface of the mandrel which surrounds the surface carrying the dressing surface.
  • the rotary table rotatable in both directions of rotation 11 is supported by a central device column 10, to which processing stations, not shown in detail, are arranged with thereto held finishing tools.
  • a plurality of clamping devices 12 are correspondingly arranged on the rotary table 11, only one clamping device 12 being shown completely in the figures, while only one base plate 12a arranged on the rotary table 11 for a clamping device to be fastened thereto is illustrated with respect to further clamping devices.
  • a workpiece 13 is clamped in the clamping device 12, which is machined by an inner grinding pin 14 used as a finishing tool, wherein the inner grinding pin 14 is held by a processing station, not shown in detail, carried by the device column 10.
  • the inner grinding pin 14 in the vertical axis perform an adjusting movement and in a radially extending to the rotary table 11 axis a feed movement.
  • a dressing unit 16 is arranged in addition to the tensioning devices 12, which carries a dressing tool 17 in the form of a horizontal disc, which is set in rotation by means of a arranged on the dressing unit 16 compressed air drive 18.
  • a central supply station 20 is arranged on the device column 10, which has a radially displaceable coupling plate 21 with a pipe stub 22 arranged therein. Accordingly, 11 transfer stations 23a, 23b and 23c are arranged on the inside of the rotary table, which are interconnected by means of a supply line 24.
  • the drive 18 of the dressing unit 16 is connected by means of a connecting line 25 to the supply line 24.
  • the dressing unit 16 is offset in the circumferential direction to the clamping device 12.
  • an offset in the circumferential direction between the middle transfer station 23b and the central supply station 20 is given. It is understood that in this position, a blockage of the compressed air outlet at the central supply station 20 must be realized.
  • FIG. 2 is now required depending on the wear occurred from time to time dressing of the inner grinding pin used as a finishing tool 14 can be seen.
  • the dressing unit 16 is now brought into a position by rotation of the rotary table 11 in a clockwise direction, in which a dressed as dressing tool 17 dressing wheel rests against the outer circumference of the inner grinding pin 14, so that by dressing the dressing tool 17, the dressing of the inner grinding pin 14 can be done , It can be seen that in this, the Certainlyschleiflix 14 associated dressing position the
  • Transfer station 23b is located in front of the central supply station 20, so that by the radial extension of the coupling plate 21, the line connection between the central supply station 20 and the supply line 24 via the transfer station 23b is made. Thus, the supplied compressed air is available at the dressing unit 16.
  • the dressing unit 16 is moved by rotation of the rotary table 11 in a remote from the inner grinding pin 14 position; For this purpose, the coupling between central supply station 20 and transfer station 23b is canceled, so that the transfer station 23b can move away from the central supply station 20.
  • the dressing unit 16 can be moved by a further rotation of the rotary table 11 in any other, another processing station associated dressing position, the individual transfer stations 23a, 23b, 23b are each arranged on the rotary table 11 that in each dressing position of Dressing unit 16 is a coupling of the central supply station 20 with a respective associated transfer station 23 is given.
  • FIGS. 3 to 5 an additional dressing function for a used as a finishing tool cup wheel shown in addition to the in the FIGS. 1 and 2 can be used, but does not necessarily have to be used.
  • the mandrel 30 is again brought by rotation of the rotary table 11 in a position in which the formed on the mandrel 30 dressing surface 32 can act on the lower working surface 28 of the cup wheel 27.
  • the dressing surface 32 is formed on the surface of a formed at the upper free end of the mandrel 30 stage 31, which has a smaller diameter than the diameter of the mandrel.
  • the mandrel 30 additionally allows the execution of a in the DE 10 2006 019 135 A1 described method for wear compensation in the finish machining of workpieces, which is based on the arrangement of a to be approached by the finishing tool reference surface. Due to the known output dimensions of the cup wheel on the one hand and the exact position of the reference surface on the other hand, during the initial dressing as well as during the period of use of the cup wheel 27 whose respective state of wear can be determined by the fact that the cup disc brought into contact with the reference surface and each of the cup wheel passed way determined as a measure of the wear occurred becomes.
  • the procedure in detail is in the DE 10 2006 019 135 A1 described and insofar not subject of the present invention, so that is dispensed with a further explanation of the method itself.
  • the mandrel 30 provided for an initial dressing function is now also adapted for carrying out the aforementioned method by forming on the mandrel 30 a reference surface 35 projecting from the surface of a surface 33 of the surface 33 surrounding the step 31 Dorns 30 attached paragraph 34 is defined.
  • FIG. 5 shows the situation of placing the cup wheel 27 with its working surface 28 on the formed on the mandrel 30 reference surface 35.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Claims (10)

  1. Dispositif pour l'usinage des pièces à usiner (13), comprenant au moins deux postes d'usinage et un plateau rond (11) monté de manière à pouvoir tourner, sachant qu'au moins deux dispositifs de serrage (12) servant à enserrer respectivement une pièce à usiner (13) sont disposés au niveau du plateau rond (11) et que les pièces à usiner (13) enserrées peuvent être transportées par un mouvement de rotation du plateau rond (11) dans les zones d'usinage des postes d'usinage, caractérisé en ce qu'au moins une unité de dressage (16) présentant un entraînement (18) pour un outil de dressage (17) et destinée à un outil de finition (14, 27) installé au niveau d'un poste d'usinage est disposée au niveau du plateau rond (11) entre deux dispositifs de serrage (12), laquelle unité de dressage peut être transférée, par une rotation du plateau rond (11) dans toute position de dressage associée à un poste d'usinage comprenant un outil de finition (14, 27) disposé au niveau dudit poste d'usinage, à dresser par l'outil de dressage (17) utilisé, et en ce qu'un poste d'alimentation (20) central destiné à un fluide à acheminer en direction de l'entraînement (18) de l'unité de dressage (16) est disposé de manière immobile au niveau du dispositif, et en ce qu'une multitude de postes de prise en charge (23) destinés au fluide, reliés les uns aux autres par un conduit d'alimentation (24) s'étendant le long de la périphérie du plateau rond (11) est disposée au niveau du plateau rond (11) de telle manière que dans toute position de dressage adoptée par l'unité de dressage (16), un des postes de prise en charge (23) est couplé au poste d'alimentation (20) central, sachant que l'unité de dressage (17) est reliée à un des postes de prise en charge (23) ou au conduit d'alimentation (24).
  2. Dispositif selon la revendication 1, caractérisé en ce que le poste d'alimentation (20) central immobile est disposé au niveau d'une section, entourée par le plateau rond (11), d'un poteau de dispositif (10) supportant le plateau rond (11) de telle manière que le couplage entre le poste d'alimentation (20) central et les postes de prise en charge (23) disposés sur le plateau rond (11) est effectué au-dessus du plan du plateau rond (11).
  3. Dispositif selon la revendication 1, caractérisé en ce que le poste d'alimentation (20) central immobile est disposé au niveau d'un bras installé au niveau d'un poteau de dispositif (10) supportant le plateau rond (11), faisant saillie radialement jusque sous le plateau rond (11), et en ce que le couplage entre le poste d'alimentation (20) central et les postes de prise en charge (23) disposés sur le plateau rond (11) est effectué à travers le plan du plateau rond (11).
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le couplage entre un poste d'alimentation (20) central et chaque poste de prise en charge (23) est réalisé de telle manière que, dans l'état couplé, un mouvement relatif du plateau rond (11) par rapport au poste d'alimentation (20) central est possible sur un angle de rotation prédéfini, limité.
  5. Dispositif selon la revendication 4, caractérisé en ce que respectivement une tubulure de conduit pouvant être couplée à une autre tubulure de conduit est disposée dans le poste d'alimentation (20) central et dans les postes de prise en charge (23), sachant que les tubulures de conduit sont disposées de manière mobile respectivement avec une voie de déplacement correspondant à l'angle de rotation dans le poste d'alimentation (20) central et les postes de prise en charge (23).
  6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le fluide à acheminer en direction de l'entraînement de l'unité de dressage (16) est de l'air comprimé.
  7. Dispositif selon l'une quelconque des revendications 1 à 6, dans le cadre duquel au moins un des postes d'usinage est équipé, en tant qu'outil de finition, d'une meule-boisseau (27) à amener en rotation, caractérisé en ce qu'en complément de l'unité de dressage (16) présentant un entraînement (18) pour l'outil de dressage (17), un mandrin (30) en position verticale sur le plateau rond (11) est disposé au niveau du plateau rond (11), lequel mandrin présente, au niveau de son extrémité supérieure libre, une surface de dressage (32) pour la surface d'usinage (28), faisant face à la surface du plateau rond (11), de la meule-boisseau (27) et qui peut être amené par une rotation du plateau rond (11), dans une position de dressage pour chaque meule-boisseau (27) utilisée au niveau d'un des postes d'usinage.
  8. Dispositif selon la revendication 7, caractérisé en ce que le mandrin (30) présente, au niveau de son extrémité supérieure libre, en complément de la surface de dressage (32), une surface de référence (35) en retrait spatialement de la surface de dressage, servant à détecter l'usure apparaissant au niveau de la meule-boisseau (27) sur sa durée d'utilisation.
  9. Dispositif selon la revendication 8, caractérisé en ce que l'extrémité supérieure libre du mandrin (30) est réalisée de manière étagée avec un palier (31) vertical présentant un diamètre inférieur au diamètre du mandrin (30), au niveau de la surface duquel palier la surface de dressage (32) est réalisée en vue du dressage de la surface d'usinage (28) de la meule-boisseau (27).
  10. Dispositif selon la revendication 9, caractérisé en ce que la surface de référence (35) est disposée au niveau de la surface (33) du mandrin (30) entourant le palier (31) supportant la surface de dressage (32).
EP13183628.0A 2012-09-14 2013-09-10 Dispositif d'usinage de pièces doté d'une unité de dressage d'outil intégrée Active EP2708325B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201210108628 DE102012108628B3 (de) 2012-09-14 2012-09-14 Vorrichtung zum Bearbeiten von Werkstücken mit integrierter Werkzeug-Abrichteinheit

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EP2708325A1 EP2708325A1 (fr) 2014-03-19
EP2708325B1 true EP2708325B1 (fr) 2015-05-27

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EP (1) EP2708325B1 (fr)
DE (1) DE102012108628B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105328547A (zh) * 2015-11-25 2016-02-17 苏州金逸康自动化设备有限公司 一种用于多工站自动除毛刺机的升降旋转分度盘

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109227378B (zh) * 2018-11-01 2024-03-08 广西广控智能科技有限公司 一种打磨装置及方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1552762A1 (de) * 1966-06-01 1969-09-25 Kehr & Wichmann Maschinenfabri Vorrichtung zur Fertigbearbeitung von Werkstuecken
DE10016897B4 (de) * 2000-04-05 2004-05-13 Thielenhaus Technologies Gmbh Vorrichtung zum Bearbeiten von Werkstücken mit mindestens zwei Bearbeitungsstationen
DE102006019135B4 (de) * 2006-04-21 2014-08-28 Thielenhaus Technologies Gmbh Verfahren zur Verschleißkompensation eines Finishwerkzeuges
JP2012011510A (ja) * 2010-07-01 2012-01-19 Honda Motor Co Ltd 金属リングのブラシ研削方法及びその装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105328547A (zh) * 2015-11-25 2016-02-17 苏州金逸康自动化设备有限公司 一种用于多工站自动除毛刺机的升降旋转分度盘

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EP2708325A1 (fr) 2014-03-19

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