EP0100944B2 - Dispositif d'alimentation dans une machine de traitement ou jet abrasif - Google Patents

Dispositif d'alimentation dans une machine de traitement ou jet abrasif Download PDF

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Publication number
EP0100944B2
EP0100944B2 EP19830107193 EP83107193A EP0100944B2 EP 0100944 B2 EP0100944 B2 EP 0100944B2 EP 19830107193 EP19830107193 EP 19830107193 EP 83107193 A EP83107193 A EP 83107193A EP 0100944 B2 EP0100944 B2 EP 0100944B2
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EP
European Patent Office
Prior art keywords
means according
workpiece
supports
conveyor
workpiece 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.)
Expired - Lifetime
Application number
EP19830107193
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German (de)
English (en)
Other versions
EP0100944B1 (fr
EP0100944A2 (fr
EP0100944A3 (en
Inventor
Peter Brenner
Jindrich Fiala
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.)
Georg Fischer AG
Original Assignee
Georg Fischer AG
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
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Application filed by Georg Fischer AG filed Critical Georg Fischer AG
Publication of EP0100944A2 publication Critical patent/EP0100944A2/fr
Publication of EP0100944A3 publication Critical patent/EP0100944A3/de
Publication of EP0100944B1 publication Critical patent/EP0100944B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/08—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces
    • B24C3/083—Transfer or feeding devices; Accessories therefor

Definitions

  • the invention relates to a conveyor device according to the preamble of claim 1.
  • Such a conveyor is known from DE-C-2 510 827, in which a pliers-like workpiece holder with a free-ended support rod is provided as a workpiece support, which is arranged immovably in the axis of rotation of the pliers.
  • the workpiece is clamped by means of a clamping claw via disc springs, which are prevented from unwanted relaxation by self-locking.
  • Workpieces to be picked up cannot be arranged concentrically to the axis of rotation regardless of their shape and size, so that a correspondingly uneven radiation results when the workpiece is rotated.
  • the object of the invention is to provide a conveyor of the type mentioned, by means of which workpieces of different shapes and sizes can be transported through a blasting chamber of a centrifugal blasting machine in a continuous or intermittent and preferably automatic mode of operation, while at the same time a uniform blasting effect on all sides by a definable rotation of the workpieces and a good emptying of the cavities arranged in the workpieces is achieved.
  • the workpiece receiving device as a workpiece support provided with a clamping device, it is possible to use the same device to transport workpieces of different shapes and sizes rotating through a centrifugal blasting machine and to treat them uniformly on all sides with blasting media.
  • FIG. 1 shows a workpiece carrying yoke 1 of a suspended conveyor 2, by means of which workpieces 3 are transported from a loading station through a centrifugal blasting machine for the purpose of all-round blasting treatment to an unloading station.
  • the support yoke 1 is slidably suspended by means of rollers 4 on a rail 5 and with a traction means 6 z. B. connected to a chain.
  • each support yoke is equipped with its own travel drive.
  • the support yoke 1 has two opposite supports or support yoke legs 7, at the lower ends of which in bearings 8 there is rotatably mounted a workpiece holding device 9 provided with a workpiece support 10 and at least one clamping device 11.
  • a clamping device 9 is arranged on each of the two bearing parts 12 and can thus be rotated with them about the axis of rotation 13.
  • the workpiece support 10 is formed by a grate 14, which is easily exchangeably fastened in the bearing parts, so that an exchange when worn or against another workpiece family adapted support such. B. a single rod for cylinder blocks is possible.
  • the clamping device 11 has clamping claws 16 which are arranged on a pivot lever 15 and which are pressed against the workpiece 3 by means of a force accumulator 18.
  • the pivot lever 15 is pivotally mounted on the bearing part 12 about an axis 17, wherein a prestressed tension spring 18, which forms the energy accumulator, acts on the pivot lever 15.
  • the tension spring 18 is advantageously arranged in an axial bore 19 of the bearing part 12, protected against blasting agents.
  • Compression springs such as. B. disc spring assemblies can be used if the position of the axis 17 to the point of application of the spring force on the lever is selected accordingly.
  • Piston-cylinder assemblies fed by a pressure accumulator with a pressure medium can also be used as energy stores.
  • the swivel lever 15 On an additional lever arm, the swivel lever 15 has an engagement surface 20, on which, according to arrow 21, an actuating device 22 acts on the loading or unloading station for lifting the clamping claw 16 from the workpiece 3.
  • the actuating device can be an electromechanical, or hydraulically or pneumatically actuated ram.
  • One of the two bearing parts 12 is operatively connected to a rotary drive 23, by means of which the workpiece is set in rotation about the axis of rotation 13 during the blasting treatment and subsequently for emptying the cavities.
  • the rotation drive can also be carried out by means of a drag chain as described in DE-C3-22 12 487.
  • two smaller workpieces can also be clamped by means of the two clamping devices 11 in addition to the shown clamping of a workpiece 3, whereby an arrangement of the workpieces which is offset obliquely on the grate also enables their all-round blasting treatment.
  • FIGS. 2 and 3 show an embodiment variant in which the workpiece support is designed as an exchangeable pallet 24.
  • the pallet 24 has driving pins 25 arranged in the axis of rotation 13 which, lying in corresponding recesses 26 in the two bearing parts 12a and 12b, connect the pallet to the support yoke 1 during transport.
  • the two support yoke legs 7a and 7b can be displaced from and to one another in the direction of the axis of rotation 13 by means of a displacement device 26 - preferably a hydraulically or pneumatically actuatable cylinder, whereby the pallet 24 is picked up by the support yoke at the loading station and deposited again at the unloading station.
  • a displacement device 26 preferably a hydraulically or pneumatically actuatable cylinder
  • FIG 3 shows the pallet 24 with the workpiece 3 on a lifting table 27 at the loading or unloading station, the yoke legs 7a and 7b having moved apart and the clamping device 11 being opened by means of the actuating device 22.
  • a good blasting effect on the workpiece surfaces is achieved when the workpiece makes a wobble movement. This is achieved when the support plane for the workpiece on the grate 14 or the pallet 24 forms an acute angle to the axis of rotation 13.
  • FIG. 4 shows a workpiece holding device 9, the workpiece support 10 of which can be adjusted for workpieces 3 of different heights.
  • the workpiece support 10 has rods 31 which are articulated on pivotable levers 30 and which can be brought into different distances 33 from the axis of rotation 13 by pivoting the lever 30 about an axis 32 running transversely to the axis of rotation 13. If only two different distances 33 are required, a lower and an upper position of the rods 31 can be defined by end stops 34 and 35, the desired position in the loading and unloading station being controlled by an actuating device such as, for example, B. a piston-cylinder unit 36 is adjustable between unloading and loading, this z. B. can be done automatically according to a predetermined program.
  • FIG. 5 and 6 show an embodiment variant of the adjustable workpiece support 10, the axes 32a of levers 30a being arranged parallel to the axis of rotation 13.
  • a continuous adjustment of the distance 35 between the axis of rotation 13 and the rods 31a can in this case, for. B. by means of a built-in worm gear 37, which in the loading and unloading station with a drive, for. B. an electric motor 38 can be coupled.
  • Such an actuating device which can adjust the workpiece support 10 within a given area to any distance from the axis of rotation 13, can also be used in the embodiment variant shown in FIG. 4.
  • FIG. 7 shows an embodiment variant of the conveyor device, which is designed as a drum conveyor 50 of a multi-station centrifugal jet machine.
  • the drum conveyor 50 rotating about an axis 51 has two side walls 52, which at the same time form the carriers 7 of a plurality of workpiece holding devices 9 arranged circumferentially distributed.
  • the workpiece holding devices 9 are conveyed from a loading and unloading station into one or more blasting chambers 54 of a housing 55 of the blasting machine by rotating the drum conveyor 50 by means of a drive 53.
  • the workpiece holding devices 9 likewise have a workpiece support 10, clamping devices 11 and bearing parts 12 and can each be rotated about an axis of rotation 13 by means of a rotary drive 23.
  • the workpieces 3 are held by means of clamping claws 16, which are supported by energy stores such as, for. B. springs are pressed against the workpiece. In the loading and unloading station, these are lifted off the workpiece by means of an actuating device.
  • the workpiece receiving devices described are also in other conveyors such. B. applicable to transportable trolleys on rails or rolling cages.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Specific Conveyance Elements (AREA)
  • Jigs For Machine Tools (AREA)

Claims (14)

1. Dispositif transporteur appartenant à une machine à grenailler pour des blocs cylindres ou des pièces analogues, comportant au moins une chambre de grenaillage, un poste de chargement et un poste de déchargement, le dispositif de transport (2, 50) présentant des dispositifs de réception des pièces (9) avec chaque fois un moyen de soutien de pièce (10) qui sont montés avec possibilité de rotation autour d'un axe de rotation (13) dans deux éléments porteurs en vis-à-vis (7, 7a, 7b) et présentent au moins un dispositif de serrage (11), le dispositif de serrage comportant au moins une griffe de serrage (16) dont le serrage est assuré par un ressort (18, 18a) et qui est montée sur levier pivotant (15) qui presse la ou les pièces (3) contre le moyen de soutien de pièce (10), le levier pivotant (15) comportant au moins une surface d'attaque (20) sur laquelle agit un dispositif d'actionnement (22) qui écarte la griffe de serrage (16) aux postes de chargement et de déchargement, caractérisé en ce que le moyen de soutien de pièce (10) est monté dans deux éléments porteurs en vis-à-vis (7, 7a, 7b) et relie ceux-ci et est disposé à une distance (33) réglable de l'axe de rotation (13).
2. Dispositif transporteur selon la revendication 1, caractérisé en ce que le dispositif d'actionnement (22) comporte un poussoir qui est actionné électro-mécaniquement, hydrauliquement ou pneumatiquement qui agit sur la surface d'attaque (20) du levier pivotant (15) pour faire pivoter celui-ci à l'encontre de la force du ressort (18, 18a).
3. Dispositif transporteur selon la revendication 1, caractérisé en ce que le ressort (18, 18a) agit sur le levier pivotant (15).
4. Dispositif transporteur selon l'une des revendications 1 à 3, caractérisé en ce qu'au moins une barre de soutien (10) est fixée à ses deux extrémités, d'une manière permettant de la remplacer facilement, aux parties de support (12, 12a, 12b) montées tournantes dans les éléments porteurs (7, 7a, 7b).
5. Dispositif transporteur selon l'une des revendications 1 à 4, caractérisé en ce qu'au moins une partie de support (12, 12a) est liée de manière fonctionnelle au système d'entraînement (23) agencé sur un élément porteur (7) et en ce que le dispositif de serrage (11) ou les dispositifs de serrage sont agencés sur l'une des parties de support (12, 12a, 12b) ou sur les deux.
6. Dispositif transporteur selon l'une des revendications 1 à 5, caractérisé en ce que moyen de soutien de pièce (10) comporte une grille (14) qui est formée de deux barres ou plus.
7. Dispositif transporteur selon la revendication 6, caractérisé en ce que la grille (14) est réalisée en tant que palette séparée (24) qu'un mouvement axial des éléments porteurs (7a, 7b) permet de saisir ou de déposer aux postes de chargement et de déchargement.
8. Dispositif transporteur selon l'une des revendications 1 à 7, caractérisé en ce que le plan de soutien de la grille (14) ou de la palette (24) est disposé selon un angle aigu par rapport à l'axe de rotation (13) du moyen de soutien de pièce (10).
9. Dispositif transporteur selon l'une des revendications 1 à 8, caractérisé en ce que les moyens de soutien de pièce (10) réalisés sous la forme de barres (31, 31a) sont fixés à des leviers (30, 30a) qui pivotent autour d'axes (32, 32a).
10. Dispositif transporteur selon la revendication 9, caractérisé en ce que les axes (32a) sont parallèles à l'axe de rotation (13).
11. Dispositif transporteur selon la revendication 9, caractérisé en ce que les axes (32) sont perpendiculaires à l'axe de rotation (13).
12. Dispositif transporteur selon l'une des revendications 9 à 11, caractérisé en ce que les leviers pivotants (30, 30a) peuvent être basculés au moyen d'un dispositif d'actionnement (36, 38) agissant aux postes de chargement et de déchargement.
13. Dispositif transporteur selon l'une des revendications 1 à 8, caractérisé en ce que le dispositif transporteur est un transporteur suspendu (2) et le dispositif de réception des pièces (9) est agencé sur un étrier porteur (1) comportant deux branches porteuses (7, 7a, 7b).
14. Dispositif transporteur selon l'une des revendications 1 à 8, caractérisé en ce que le dispositif transporteur est un transporteur à tambour (50) tournant autour d'un axe (51), les deux éléments porteurs (7) étant formés par les parois (52) du tambour.
EP19830107193 1982-08-16 1983-07-22 Dispositif d'alimentation dans une machine de traitement ou jet abrasif Expired - Lifetime EP0100944B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH490482 1982-08-16
CH4904/82 1982-08-16

Publications (4)

Publication Number Publication Date
EP0100944A2 EP0100944A2 (fr) 1984-02-22
EP0100944A3 EP0100944A3 (en) 1985-10-23
EP0100944B1 EP0100944B1 (fr) 1987-10-14
EP0100944B2 true EP0100944B2 (fr) 1992-04-15

Family

ID=4284566

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830107193 Expired - Lifetime EP0100944B2 (fr) 1982-08-16 1983-07-22 Dispositif d'alimentation dans une machine de traitement ou jet abrasif

Country Status (3)

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EP (1) EP0100944B2 (fr)
DE (1) DE3374049D1 (fr)
ES (1) ES524420A0 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309619A1 (de) * 1983-03-17 1984-09-27 BMD Badische Maschinenfabrik Durlach GmbH, 7500 Karlsruhe Foerdereinrichtung fuer grosse gussstuecke in putzanlagen
DE3560697D1 (en) * 1984-08-10 1987-11-05 Fischer Ag Georg Abrasive blasting machine with at least one rotary holding device for workpieces
GB8705271D0 (en) * 1987-03-06 1987-04-08 Coated Electrodes Internationa Coating carbon articles
JP2771517B2 (ja) * 1996-07-16 1998-07-02 山形日本電気株式会社 垂直移載装置および垂直移載方法
KR100716925B1 (ko) 2005-12-29 2007-05-10 주식회사 포스코 숏 블라스트 장치의 소재 고정 장치
CN103753408B (zh) * 2014-02-11 2016-02-24 中航飞机股份有限公司西安飞机分公司 一种自动预应力夹具
CN111673624A (zh) * 2020-06-23 2020-09-18 苏州安井自动化设备有限公司 喷砂上下料的自动化线

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1176560A (en) * 1966-11-08 1970-01-07 Pangborn Corp Continuous Cleaning Apparatus
GB1242933A (en) * 1968-06-20 1971-08-18 Badische Maschf Gmbh Multi-station blasting machines
DE2020516A1 (de) * 1970-04-27 1971-11-25 Walker Helen H Kugel- oder Sandstrahlvorrichtung
CH529614A (de) * 1971-03-31 1972-10-31 Fischer Ag Georg Verfahren und Hängebahn-Schleuderstrahlmaschine zur Oberflächenbehandlung von Werkstücken

Also Published As

Publication number Publication date
ES8406056A1 (es) 1984-07-16
DE3374049D1 (en) 1987-11-19
EP0100944B1 (fr) 1987-10-14
EP0100944A2 (fr) 1984-02-22
ES524420A0 (es) 1984-07-16
EP0100944A3 (en) 1985-10-23

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