EP1184132A2 - 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
EP1184132A2
EP1184132A2 EP01120995A EP01120995A EP1184132A2 EP 1184132 A2 EP1184132 A2 EP 1184132A2 EP 01120995 A EP01120995 A EP 01120995A EP 01120995 A EP01120995 A EP 01120995A EP 1184132 A2 EP1184132 A2 EP 1184132A2
Authority
EP
European Patent Office
Prior art keywords
container
abrasive
workpiece
workpiece holder
grinding device
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
EP01120995A
Other languages
German (de)
English (en)
Other versions
EP1184132B1 (fr
EP1184132A3 (fr
EP1184132B9 (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
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1184132A2 publication Critical patent/EP1184132A2/fr
Publication of EP1184132A3 publication Critical patent/EP1184132A3/fr
Publication of EP1184132B1 publication Critical patent/EP1184132B1/fr
Application granted granted Critical
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.
  • 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.
  • DD 47 309 describes a process for deburring, edge rounding and Polishing predominantly of rotationally symmetrical or rotation-like 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 vibratory grinding machines is that on the one hand only relatively small workpieces can be machined and on the other hand again and again to mechanical faults in the area between the rim of the plate and the container wall comes.
  • 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 arranged in each case, the Frequencies of the vibration exciter adjustable between 10 and 100 Hz and 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 Swirling of the abrasive inside 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.
  • Generating a directional airflow it is possible to keep the pressure within to control the abrasive container and, if necessary, to vary it.
  • the inside of the container is in working condition completely filled with abrasive.
  • 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 mounted, 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.
  • 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 bottom 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 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 in accordance with a schematic illustration 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)
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
DE10043216 2000-09-01
DE10043216A DE10043216A1 (de) 2000-09-01 2000-09-01 Schleifvorrichtung und Verfahren zum Schleifen von Werkstücken

Publications (4)

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

Family

ID=7654709

Family Applications (1)

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

Country Status (3)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004078415A1 (fr) * 2003-03-08 2004-09-16 Schenck Process Gmbh Procede et dispositif pour traiter la surface de pieces metalliques
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, 75210 Keltern Tauchgleitschleifmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004078415A1 (fr) * 2003-03-08 2004-09-16 Schenck Process Gmbh Procede et dispositif pour traiter la surface de pieces metalliques
CN1317106C (zh) * 2004-06-03 2007-05-23 李永南 首饰用小珠的研磨设备

Also Published As

Publication number Publication date
EP1184132B1 (fr) 2004-06-09
EP1184132A3 (fr) 2002-07-24
ATE268670T1 (de) 2004-06-15
DE50102519D1 (de) 2004-07-15
DE10043216A1 (de) 2002-03-28
EP1184132B9 (fr) 2004-10-27

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