EP0100944A2 - 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
EP0100944A2
EP0100944A2 EP83107193A EP83107193A EP0100944A2 EP 0100944 A2 EP0100944 A2 EP 0100944A2 EP 83107193 A EP83107193 A EP 83107193A EP 83107193 A EP83107193 A EP 83107193A EP 0100944 A2 EP0100944 A2 EP 0100944A2
Authority
EP
European Patent Office
Prior art keywords
workpiece
axis
support
rotation
clamping
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
EP83107193A
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German (de)
English (en)
Other versions
EP0100944B1 (fr
EP0100944B2 (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
Application granted granted Critical
Publication of EP0100944B2 publication Critical patent/EP0100944B2/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 as characterized in the preamble of claim 1.
  • a corresponding conveying device has become known from the patent specification DE-C3- 22 12 487.
  • the workpieces e.g. Motor blocks are clamped between the rotatable drivers on the end face, which is achieved by the axially displaceable support yoke legs that can be clamped against the workpieces. Due to the required high clamping forces, the support yoke legs and the support yoke must be of a very stable design, and due to their axial displacement, very complex support yokes are required with large forces. In addition, it has been shown that only a limited part of the workpieces to be blasted can be held on the end face, or the drivers must be adapted to the workpieces, as a result of which continuous operation with different workpieces is not possible.
  • cylinder blocks and the associated cylinder head covers cannot be blasted without retrofitting the workpiece holder.
  • the object of the present invention is to provide a conveying device of the type mentioned at the beginning, by means of which workpieces of different shape and size can be transported through a blasting chamber of a centrifugal blasting machine in a continuous or intermittent and preferably automatic mode of operation, at the same time being uniform on all sides by a definable rotation of the workpieces Blasting effect and 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 in rotation through a centrifugal blasting machine and to treat them uniformly on all sides with blasting media.
  • the support yoke 1 shows a workpiece carrier yoke 1 of a hanging conveyor 2, by means of which workpieces 3 are transported from a loading station through a centrifugal jet machine for the purpose of all-round blasting treatment to an unloading station.
  • the support yoke 1 is displaceable on a rail 5 by means of rollers 4 suspended and connected with a traction device 6, for example a chain.
  • a traction device 6 for example 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 in the event of wear or a support adapted to another workpiece family, e.g. 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 disc spring assemblies can also be used 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 electro-mechanically, hydraulically or pneumatically actuated plunger.
  • 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 rotary drive can also be carried out by means of a drag chain, as described in DE-C3-22 12 487.
  • two smaller workpieces can be clamped by means of the two clamping devices 11 in addition to the shown clamping of a workpiece 3, an arrangement of the workpieces which is offset obliquely on the grate likewise 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 in the pivot pin 13 arranged on the axis of rotation 13, which, lying in corresponding recesses 26 of 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.
  • only one tensioning device 11 is arranged on the bearing part 12b, the pivoting lever 15 using a compression spring 18a - e.g. a plate spring package - can be pressed against the workpiece 3.
  • the rotary drive 23 is operatively connected to the other bearing part 12a, with the pallet 24 and the clamping device 11 being driven rotationally by e.g. the driving pin 25 is designed as a square.
  • 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, e.g. a piston-cylinder unit 36 is adjustable between unloading and loading, this being e.g. can be done automatically according to a predetermined program.
  • an actuating device e.g. a piston-cylinder unit 36 is adjustable between unloading and loading, this being e.g. 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 be e.g. by means of a built-in worm drive 37, which in the loading and unloading station with a drive, e.g. an electric motor 38 can be coupled.
  • Such an actuator which the workpiece support 10 within a given area can be adjusted 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 e.g. Springs are pressed against the workpiece. In the loading and unloading station, these are lifted off the workpiece by means of an actuating device.
  • energy stores such as e.g. Springs
  • the workpiece holding devices described are also used in other conveying devices, such as applicable to transportable wagons on rails or rolling cages.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Specific Conveyance Elements (AREA)
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
CH4904/82 1982-08-16
CH490482 1982-08-16

Publications (4)

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

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

Cited By (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
EP0173802A1 (fr) * 1984-08-10 1986-03-12 Georg Fischer Aktiengesellschaft Machine de traitement au jet abrasif avec au moins un dispositif porte-pièce rotatif
GB2202552A (en) * 1987-03-06 1988-09-28 Coated Electrodes Internationa Coating elongated carbon articles by spraying
GB2315252A (en) * 1996-07-16 1998-01-28 Nec Corp Controlling travelling carrier system
KR100716925B1 (ko) 2005-12-29 2007-05-10 주식회사 포스코 숏 블라스트 장치의 소재 고정 장치
CN103753408A (zh) * 2014-02-11 2014-04-30 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

Citations (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

Patent Citations (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

Cited By (10)

* 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
EP0173802A1 (fr) * 1984-08-10 1986-03-12 Georg Fischer Aktiengesellschaft Machine de traitement au jet abrasif avec au moins un dispositif porte-pièce rotatif
US4662125A (en) * 1984-08-10 1987-05-05 Georg Fischer Aktiengesellschaft Centrifugal blasting machine having a rotatable workpiece holder
GB2202552A (en) * 1987-03-06 1988-09-28 Coated Electrodes Internationa Coating elongated carbon articles by spraying
GB2315252A (en) * 1996-07-16 1998-01-28 Nec Corp Controlling travelling carrier system
US5941678A (en) * 1996-07-16 1999-08-24 Nec Corporation Overhead traveling carrier system for speedily conveying load and method of controlling thereof
GB2315252B (en) * 1996-07-16 2000-07-05 Nec Corp Traveling carrier system and method of controlling the same
KR100716925B1 (ko) 2005-12-29 2007-05-10 주식회사 포스코 숏 블라스트 장치의 소재 고정 장치
CN103753408A (zh) * 2014-02-11 2014-04-30 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

Also Published As

Publication number Publication date
DE3374049D1 (en) 1987-11-19
EP0100944B1 (fr) 1987-10-14
ES8406056A1 (es) 1984-07-16
EP0100944B2 (fr) 1992-04-15
EP0100944A3 (en) 1985-10-23
ES524420A0 (es) 1984-07-16

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