EP1184132B9 - Procédé et dispositif pour le traitement abrasif de pièces - Google Patents

Procédé et dispositif pour le traitement abrasif de pièces Download PDF

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Publication number
EP1184132B9
EP1184132B9 EP01120995A EP01120995A EP1184132B9 EP 1184132 B9 EP1184132 B9 EP 1184132B9 EP 01120995 A EP01120995 A EP 01120995A EP 01120995 A EP01120995 A EP 01120995A EP 1184132 B9 EP1184132 B9 EP 1184132B9
Authority
EP
European Patent Office
Prior art keywords
container
grinding
workpiece
lifting
grinding material
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.)
Expired - Lifetime
Application number
EP01120995A
Other languages
German (de)
English (en)
Other versions
EP1184132A2 (fr
EP1184132A3 (fr
EP1184132B1 (fr
Inventor
Willibald Forstner
Alfons Wallner
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.)
Individual
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Individual
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Publication of EP1184132A2 publication Critical patent/EP1184132A2/fr
Publication of EP1184132A3 publication Critical patent/EP1184132A3/fr
Application granted granted Critical
Publication of EP1184132B1 publication Critical patent/EP1184132B1/fr
Publication of EP1184132B9 publication Critical patent/EP1184132B9/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/06—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving oscillating or vibrating containers
    • B24B31/064—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving oscillating or vibrating containers the workpieces being fitted on a support

Definitions

  • the present invention relates to a grinding device for grinding Workpieces with a frame or a housing and at least one workpiece holder arranged within the frame or the housing for holding at least one workpiece, the workpiece holder is rotatable and slidable and the workpiece holder with the Partially or completely into a workpiece by means of a lifting and lowering device open or at least partially closable abrasive container with abrasive is retractable and the abrasive container for at least one air supply nozzle Has generation of an air flow within the container, being on the abrasive container a vibration exciter is arranged, see e.g. US 4,916,865.
  • the present invention further relates to a method for grinding Workpieces.
  • Known grinders and methods typically use a fixed one Abrasive ground such.
  • a disadvantage of these fixed grinding reasons, however, is that in particular Profiled workpieces can only be ground with a lot of work.
  • the size and profile of the grinding wheel must match the respective Workpieces are adjusted, which also results in high costs.
  • No. 4,916,865 describes a device for the surface treatment of a workpiece described, which can be used as a grinding device and a container with has a means for surface treatment of a workpiece.
  • a to treat introduced tools are air supply nozzles and a Vibrator is provided on the container, causing the agent to move brought and can serve the treatment.
  • the workpiece to be treated is also in during the treatment process by the movement of the agent transported in one direction, this transport being carried out at certain intervals a workpiece holder is interrupted to achieve the treatment result improve.
  • DD 47 309 describes a method for deburring, edge rounding and Polishing predominantly of rotationally symmetrical or rotationally similar parts known metallic materials, in which by at least one to the left and right movable spindle at least one workpiece in a vibrating grinding medium is managed and processed. From DE 1 167 689 there is also a grinding device known. The workpiece to be machined becomes movable within one a grinding liquid filled container arranged. The grinding fluid is through Compressed air coming out of nozzles fixed in the walls of the container, swirled.
  • a disadvantage of this type of surface grinding machines is that on the one hand only relatively small workpieces can be machined and on the other hand it always has to mechanical disturbances in the area between the rim of the plate and the container wall comes.
  • such surface grinding machines are not suitable, larger and profiled workpieces such as B. window frames, door frames and the like, too to edit.
  • a grinding device In a grinding device according to the invention is on an abrasive container and a vibration exciter is arranged in each case, the Frequencies of the vibration exciter adjustable between 10 and 100 Hz the vibrations generated are directed in opposite directions.
  • the vibration amplitude is between 0.5 mm and 4.5 mm.
  • the air flow generated within the container generates an air supply nozzle Turbulence of the abrasive within the container and on the other hand will the abrasive is advantageously pressed against the workpiece surface with pressure or directed to the workpiece surface.
  • the air flow is advantageously with a pressure between 0.5 and 10 bar introduced into the abrasive housing.
  • the Vibration exciters advantageously each produce an adjustable one Acceleration from 1.0 to 4 g. The best can be found in this area Achieve work results.
  • the workpiece holder with the workpiece by means of the lifting and Lowering device removed from or out of the abrasive container lifted.
  • the grinding device according to the invention is also advantageous because of its Construction extremely insensitive to mechanical stress.
  • the air supply nozzle (s) with air guiding devices arranged inside the container connected to generate a directed air flow.
  • Generating a directional airflow it is possible to keep the pressure within to control the abrasive container and, if necessary, to vary it.
  • the latter can also be achieved by that the air is arranged in the area of a bottom of the container Air supply nozzles is introduced into the container.
  • this can be the Abrasive that collects on the bottom of the container can be loosened. Also guaranteed such an arrangement of the air supply nozzles that the grinding dust of the workpiece is transported to the container surface.
  • the container is mounted flat. This allows the overall height of the grinding device advantageously be kept low.
  • the inventive method for grinding workpieces uses a Grinding device according to the invention and has the following steps: (a) clamping a workpiece in a rotatable workpiece holder; (b) lowering and partial or complete retraction of the workpiece holder by means of a lifting and Lowering device into an abrasive container; (c) Introducing an airflow over Air supply nozzles in the abrasive container and moving the abrasive container and the workpiece holder in opposite vibrations Swirling the abrasive disposed within the container; (d) turning and / or lifting and lowering the workpiece holder with the complete or workpiece partially surrounded by abrasive; and (e) removing or Lift the workpiece holder with the workpiece out of the Abrasive container.
  • Figure 1 shows a schematic representation of a grinding device 10 according to a first embodiment with a frame 12 and one within the Rack frame 12 arranged workpiece holder 16 for holding a Workpiece 18.
  • the workpiece 18 is a profiled in the exemplary embodiment Window frames.
  • the workpiece holder 16 is rotatably supported, the Rotation is generated by a rotating device 20. It can be seen that the Workpiece holder 16 consisting of a lifting and lowering device 22 two lifting spindles 24, 26 can be moved.
  • the workpiece holder 16 is partially or completely into an at least partially closable abrasive container 14 retracted.
  • a container cover 28 has a corresponding opening 30 on.
  • the abrasive medium container 14 has two air supply nozzles 32, 34 for generating an air flow within the container 14, the Air supply nozzles 32, 34 also arranged inside the container 14 Air guiding devices 36, 38 are connected in an air-guiding manner.
  • the air guiding devices 36, 38 extend from the container cover 28 to a container base 40.
  • the air flow is at a pressure between 0.5 and 10 bar in the Abrasive housing 14 initiated.
  • the container 14 also has suitable Air release devices on.
  • a vibration exciter 42 is located on the container bottom 40 of the abrasive agent container 14 arranged. Between a support element 50 - usually a concrete base - and Vibration decouplers 46 are arranged in the tank bottom 40. The Support element 50 is mounted on vibration dampers 48. The workpiece holder 16 is also connected to a vibration exciter 52 (see FIG. 2). The frequencies the vibration exciters 42, 52 are each adjustable between 10 and 100 Hz are opposite. The vibration amplitude is between 0.5 mm and 4.5 mm. In addition, the vibration exciters 42, 52 each generate an adjustable one Acceleration from 1.0 to 4 g.
  • the abrasive usually consists of slag, quartz sand, basalt pieces or Corundum or a mixture thereof, the grain size of the abrasive being less than 2 mm is. But it is also conceivable that other abrasive, liquid or solid abrasives be used.
  • Figure 2 shows a schematic side view of the grinding device 10. Man recognizes that the vibration exciter 42 with an electric motor 44 for Vibration generation is connected and that the workpiece holder 16 with the second vibration exciter 52 is coupled.
  • FIG. 3 shows a grinding device 10 according to FIG a second first embodiment. It can be seen that the container 14 lies flat is mounted. In addition, the air is in the region of the bottom 40 of the container 14 arranged air supply nozzles 54 introduced into the container 14. It becomes clear that the container 14 and the lifting and lowering device 22 against vibration the frame or the housing 12 and against the support member 50 on which the Grinding device 10 is arranged, are decoupled. There are vibration dampers for this 46 between the container 14 and the support member 50 and vibration damper 56 between the lifting and lowering device 22 and vibration damper 48 for Storage of the support member 50 is formed.
  • the lifting and lowering device 22 a receiving device 58 for attaching the Has workpiece holder 16.
  • the lifting movement takes place by means of a Cradle 58 correspondingly attached wire rope 62, several Deflection rollers 64 for the wire rope 62 and a lifting cylinder 60. So both sides of the workpiece 18 can be processed, the lifting and lowering device 22 and / or the workpiece holder can be rotated by 180 °.
  • vibration parameters of the vibration exciters 42, 52 correspond to the Parameters according to the embodiment described in Figures 1 and 2.

Landscapes

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

Claims (10)

  1. Dispositif de traitement abrasif de pièces à usiner (18), comprenant un bâti
    ou un caisson (12) et au moins un support (16) pour la pièce à usiner disposée à l'intérieur du bâti ou caisson (12) pour maintenir au moins une pièce à usiner (18), le support de la pièce à usiner (16) étant prévu sous forme orientable et mobile et étant escamotable partiellement ou entièrement à l'aide d'un dispositif de levage et de descente (22) dans un réservoir d'agent abrasif (14) ouvert ou au moins partiellement obturable, le réservoir d'agent abrasif (14) comportant au moins une buse d'alimentation en air (32, 34, 54) pour créer un courant d'air à l'intérieur du réservoir (14), un oscillateur (42) étant prévu sur le réservoir d'agent abrasif,
    caractérisé en ce que
    le support de la pièce à usiner (16) est partiellement ou entièrement escamotable, ensemble avec la pièce à usiner (18), à l'intérieur d'un réservoir contenant de l'agent abrasif (14), et ce à l'aide d'un dispositif de levage et de descente (22),
    un oscillateur (52) supplémentaire étant prévu sur le support de la pièce à usiner (16), les fréquences des oscillateurs (42, 52) étant réglables respectivement à une valeur comprise entre 10 et 100 Hz, les vibrations générées respectivement ayant des directions opposées et l'amplitude des vibrations étant comprise entre 0,5 et 4,5 mm.
  2. Dispositif de traitement abrasif selon la revendication 1,
    caractérisé en ce que
    l'air est injecté dans le réservoir (14) par l'intermédiaire des buses d'alimentation en air (32, 34, 54) avec une pression comprise entre 0,5 et 10 bars.
  3. Dispositif de traitement abrasif selon l'une des revendications précédentes,
    caractérisé en ce que
    la (les) buse(s) d'alimentation en air (32, 34) est (sont) reliée(s) à des conduites d'alimentation en air (36, 38) disposées à l'intérieur du réservoir (14) pour créer un courant d'air orienté.
  4. Dispositif de traitement abrasif selon la revendication 1 ou 2,
    caractérisé en ce que
    l'air est introduit dans le réservoir (14) par l'intermédiaire de buses d'alimentation en air (54) disposées au droit d'un fond (40) du réservoir (14).
  5. Dispositif de traitement abrasif selon l'une des revendications précédentes,
    caractérisé en ce que
    que des oscillateurs (42, 52) génèrent, respectivement, une accélération réglable comprise entre 1,0 et 4 g.
  6. Dispositif de traitement abrasif selon l'une des revendications précédentes,
    caractérisé en ce que
    le réservoir (14) et le dispositif de levage et de descente (22) sont désaccouplés, du point de vue vibration, contre le bâti respectivement le caisson (12) et contre un élément de support (50) sur lequel est disposé le dispositif de traitement abrasif (10).
  7. Dispositif de traitement abrasif selon l'une des revendications précédentes,
    caractérisé en ce que
    le réservoir (14) est monté à plat.
  8. Dispositif de traitement abrasif selon l'une des revendications précédentes,
       caractérisé en ce que
    le dispositif de levage et de descente (22) est prévu sous forme rotative.
  9. Dispositif de traitement abrasif selon l'une des revendications précédentes,
    caractérisé en ce que
    l'agent abrasif comprend du laitier, du sable silicieux, des pièces de basalte ou du corindon ou un mélange de ceux-ci, la structure granuleuse de l'agent abrasif étant inférieure à 2 mm.
  10. Procédé de traitement abrasif de pièces à usiner mettant en oeuvre un dispositif de traitement abrasif selon l'une des revendications précédentes, le procédé comprenant les étapes suivantes:
    a) serrage d'une pièce à usiner (18) dans un support de pièces à usiner prévu sous forme rotative (16);
    b) descente et escamotage partiel ou entier du support de la pièce à usiner (16) à l'aide d'un dispositif de levage et de descente (22) dans un réservoir d'agent abrasif (14);
    c) introduction d'un courant d'air par l'intermédiaire de buses d'alimentation en air (32, 34, 54) dans le réservoir d'agent abrasif (14) et mise en vibration du réservoir d'agent abrasif (14) et du support de la pièce à usiner (16) dans des directions respectivement opposées pour tourbilloner l'agent abrasif se trouvant à l'intérieur du réservoir (14);
    d) rotation et/ou levage et descente du support de la pièce à usiner (16) comportant la pièce à usiner entourée partiellement ou entièrement par l'agent abrasif (18); et
    e) enlèvement respectivement sortie du support de la pièce à usiner (16) comportant la pièce à usiner (18) du réservoir d'agent abrasif (14).
EP01120995A 2000-09-01 2001-08-31 Procédé et dispositif pour le traitement abrasif de pièces Expired - Lifetime EP1184132B9 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10043216A DE10043216A1 (de) 2000-09-01 2000-09-01 Schleifvorrichtung und Verfahren zum Schleifen von Werkstücken
DE10043216 2000-09-01

Publications (4)

Publication Number Publication Date
EP1184132A2 EP1184132A2 (fr) 2002-03-06
EP1184132A3 EP1184132A3 (fr) 2002-07-24
EP1184132B1 EP1184132B1 (fr) 2004-06-09
EP1184132B9 true EP1184132B9 (fr) 2004-10-27

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ID=7654709

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Application Number Title Priority Date Filing Date
EP01120995A Expired - Lifetime EP1184132B9 (fr) 2000-09-01 2001-08-31 Procédé et dispositif pour le traitement abrasif de pièces

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EP (1) EP1184132B9 (fr)
AT (1) ATE268670T1 (fr)
DE (2) DE10043216A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10310241A1 (de) * 2003-03-08 2004-09-16 Schenck Process Gmbh Verfahren und Vorrichtung zur Oberflächenbearbeitung von metallischen Werkstücken
CN1317106C (zh) * 2004-06-03 2007-05-23 李永南 首饰用小珠的研磨设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD47309A (fr) *
DE1167689B (de) * 1962-04-04 1964-04-09 Voigtlaender Ag Geraet zur Erzeugung feinbearbeiteter Flaechen an Werkstuecken
US4916865A (en) * 1985-04-05 1990-04-17 Carrier Vibrating Equipment, Inc. Apparatus for surface treating a workpiece
FR2587928B1 (fr) * 1985-09-27 1989-09-29 Bertin & Cie Dispositif pour le decapage ou l'amelioration de l'etat de la surface d'un objet avec des particules solides
DE29502887U1 (de) * 1995-02-23 1995-03-30 Dannemann Peter Tauchgleitschleifmaschine

Also Published As

Publication number Publication date
EP1184132A2 (fr) 2002-03-06
DE10043216A1 (de) 2002-03-28
DE50102519D1 (de) 2004-07-15
ATE268670T1 (de) 2004-06-15
EP1184132A3 (fr) 2002-07-24
EP1184132B1 (fr) 2004-06-09

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