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EP2777843B1 - Procédé et dispositif pour le procédé de fabrication d'une pièce coulée - Google Patents

Procédé et dispositif pour le procédé de fabrication d'une pièce coulée Download PDF

Info

Publication number
EP2777843B1
EP2777843B1 EP13159480.6A EP13159480A EP2777843B1 EP 2777843 B1 EP2777843 B1 EP 2777843B1 EP 13159480 A EP13159480 A EP 13159480A EP 2777843 B1 EP2777843 B1 EP 2777843B1
Authority
EP
European Patent Office
Prior art keywords
hollow body
tool
hollow
casting
transporting means
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.)
Not-in-force
Application number
EP13159480.6A
Other languages
German (de)
English (en)
Other versions
EP2777843A1 (fr
Inventor
Daniel WLATZLAK
Michael Hoffmann
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen 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
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Priority to EP13159480.6A priority Critical patent/EP2777843B1/fr
Priority to US14/775,918 priority patent/US20160031000A1/en
Priority to CN201480014674.5A priority patent/CN105121060A/zh
Priority to PCT/EP2014/052797 priority patent/WO2014139748A1/fr
Publication of EP2777843A1 publication Critical patent/EP2777843A1/fr
Application granted granted Critical
Publication of EP2777843B1 publication Critical patent/EP2777843B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores
    • B22C9/108—Installation of cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/0072—Casting in, on, or around objects which form part of the product for making objects with integrated channels

Definitions

  • the invention relates to methods and apparatus for the method of manufacturing a cast workpiece.
  • cast workpieces in a wall can also have flow channels or hollow areas.
  • a tool may have a corresponding core which is to form the flow channel. This approach only allows simple straight channel shapes. Also, the channel length is limited because the core must be removed from the workpiece.
  • a common manufacturing process is such that a hollow body, which is intended to image the flow channel to be produced in the die-cast component, is produced as a pre-assembly component and inserted into the die-casting tool.
  • the enclosed in the die casting material encloses the hollow body, which remains in the wall of the die-cast component. Consequently, the prefabricated hollow body must have a quality, in particular dimensional accuracy, which corresponds to the end product.
  • a placement robot removes the hollow body by means of a gripper and guides the hollow body to the die casting tool.
  • a hollow end does not take the predetermined mounting position, then can be issued in the simplest case by a sensor on the die casting or the die casting an error message.
  • the die-casting mold undesirably cools. With lower deviations in shape, the die cast workpiece is produced, but then may not fit the channel dimensions. Then there is a missing part that can only be melted down.
  • a source of error may, for. B. are that the gripping tongs can hold the hollow body, but would be inserted obliquely into the die-casting tool by an unfortunate combination of shape errors of the hollow body.
  • An obvious idea could be seen in the fact that one provides the hollow body with tool surfaces over which the hollow body could be clearly grasped by the gripping tongs. Such tool surfaces would make the hollow body more expensive and would also have negative effects on the flow cross sections of a flow channel to be generated.
  • JP S59 144553 A is a device for a method for producing a cast component with a wall in the at least one hollow chamber is formed, known.
  • a hollow body forms a hollow chamber in a casting tool.
  • the casting tool is supplied with liquid material which encloses the hollow body.
  • a support device for the hollow body determines together with a cover the exact position of the hollow body. Between a lower box and the lid molding sand is introduced, which additionally fixes the hollow body. Subsequently, the support device is removed and reconnected the lower box, so that there is a free space, which is filled with the liquid workpiece.
  • the DE 102006 034 341 describes a method for producing a cast component with a cast-in tube in a lost mold and permanent mold casting process or a permanent mold casting process in which a solid core mold is stored in a split outer mold.
  • a separate pipe holder is integrated into the outer mold or the core mold.
  • the pipe is inserted into a holding portion of the pipe holder which has been formed so as to locally surround the outer circumference of the pipe at least partially and with little play, so that the pipe can expand in the axial direction during casting, but against displacements caused by the buoyancy forces of the liquid casting material secured in radial directions. Subsequently, the component is cast with the respective method.
  • a device for gripping a foundry core, in particular a sole core, with a tensioning device having clamping device wherein the core at least one recess, an opening, a passage or the like., In which or in which the clamping device engages with the clamping means.
  • the device is designed such that the clamping means are designed as preferably pressed against the inner wall of the core clamping jaws.
  • the object of the present invention is to remedy the manufacturing problem known from the prior art.
  • the position of the hollow body is defined. Should there be a problem with this method step, since the tube body can not be picked up by the transport means due to a faulty geometry, then another hollow body could be fed to the diecasting tool by using a second transport means which would be used at the same time or with a small time offset , It is assumed that hardly any two missing parts would occur in a timely manner. As a result, the feeding process into the die casting tool could be kept uninterrupted, so that no unnecessary cooling phases are to be tolerated on the die casting tool.
  • the hollow body is pulled into the means of transport. If the hollow body dimensional variations, then the hollow body can be absorbed by the pulling movement of the transport.
  • the positive guidance function of the means of transport ensures that slight deviations are compensated by the elastic body within limits.
  • the hollow body is moved by means of a sliding tool from the transport.
  • the sliding tool can on the one hand structurally simple to run and wear low high assembly forces.
  • the sliding tool is designed as a displaceable stop.
  • the transport means on guide surfaces on which rests the hollow body.
  • the device that moves the hollow body in the transport must take over no leadership function. Consequently, the gripping function and thus also the gripper for the insertion movement into the means of transport are simplified.
  • the guide surfaces on each other facing free cuts through which at least one angled portion of the hollow body can escape from the guide surfaces.
  • the transport means has at least one positive-locking surface, which cooperates with a form-fitting counter-surface of the transfer tool.
  • the transfer tool has a receiving profile for the contact surfaces of the hollow body. It thus always runs a defined transfer of the hollow body from the transport to the casting tool.
  • As connecting surfaces of the hollow body its two ends are preferably provided.
  • the device has a sensor which detects at least one movement parameter of the sliding tool. This makes it possible to detect whether a component is present at all in the means of transport and, in addition, the mounting position in the casting tool has been reached, for example by measuring an increase in force on the sliding tool.
  • a hollow body 1 which images the flow channel with its inner wall.
  • a hollow body 1 is produced, which envelops exactly the predetermined flow channel.
  • the hollow body 1 is preferably made of a metallic material.
  • the hollow body 1 is fed to a magazine 3, in which the hollow body 1 occupies a defined mounting position.
  • the magazine 3 In the magazine 3 are the z.
  • the hollow body 1 is received by a transport means 7.
  • the transport means has guide surfaces 9; 11, the two open guide grooves 13; 15 form.
  • the hollow body 1 is during the assembly movement in the casting tool 5 on the guide surfaces 9; 11, like the Fig. 2 shows.
  • the guide surfaces 9; 11 have mutually facing free cuts 17; 19, by the at least one angled portion 21 of the hollow body 1 from the guide surfaces 9; 11 and guide grooves 13; 15 can escape.
  • the angled region 21 is formed by a connecting web of the hollow body 1, the two parallel flow sections 23; 25 connects.
  • the hollow body 1 may also have a completely different body contour.
  • the guide surfaces 9; 11 form a hollow body 1 with a designated envelope from. Of course, in the design and the angular position of the guide surfaces 9; 11 a certain manufacturing tolerance of the hollow body 1 flowed.
  • the transport means 7 has at least one positive-locking surface 27, which can make a form-locking connection with a form-fitting counter-surface 29 of a transfer tool 31 as part of the casting tool 5.
  • the form-fitting surface is designed as a pin sleeve, which can engage in a receiving sleeve 31 as takeover tool.
  • the receiving sleeve centered on the pin sleeve of the transport 7. Since in the specific embodiment of the transport means 7 two pin sleeves are executed, the hollow body is guided relative to all spatial coordinates of the casting tool 5 defined.
  • the transfer tool 31 has a receiving profile 33 for connector body portions 35 of the hollow body 1.
  • the receiving profile 33 z. B. be designed as a simple bore, if it is assumed that the wall of the hollow body forms a simple circular ring cross-section at both ends.
  • the receiving profile 33 is a spigot on which the hollow body is pushed.
  • the method begins with the hollow body 1 being received by the transporting means 7.
  • the transport means 7 is brought into coincidence with the hollow body 1 and then pulled out of the magazine 3, in which the hollow body 1 has already taken the basic orientation, as in the cast part, by means of a gripper 37 in the transport 7.
  • the guide surfaces 9; 11 for an exact position of the hollow body 1 within the transport 7. Should the Hollow body 1 have slight angular errors, then the hollow body 1 can be drawn with its connecting portion 21 in the transport 7 and with the further retraction move the guide surfaces 9; 11 the hollow body 1 in the context of inherent elasticity.
  • the transport 7 can z. B. are picked up by a robot, which moves the transport means 7 to the open casting tool 5.
  • a robot which moves the transport means 7 to the open casting tool 5.
  • the positive-locking surface 27 of the transporting means 7 and the at least one interlocking counter-surface 29 ensure a positive connection of the transporting means 7 in the transfer tool 31 or the casting tool 5. If the positive connection is produced, then the hollow body 1 is moved by means of a displaceable stop 39 as a sliding tool from the transport means 7.
  • the connection body regions 35 of the hollow body 1 engage in the receiving profile 33 of the transfer tool 31.
  • the displacement movement of the stopper 39 can be monitored in a variety of ways. For example, a predetermined end position of the stop 39 can be detected with an optical sensor. If this predetermined end position is not reached, then it can be assumed that the hollow body 1 has not been correctly transferred to the casting tool 5. Also by means of a force measurement of the stop movement, the predetermined end position can be detected.
  • the transport means 7 With the transport means 7, the supply of the hollow body 1 runs starting from a parts supply, for. As the magazine, down to the casting tool 5 always controlled, so that a malposition of the hollow body 1 in the casting tool 5 is largely eliminated.
  • the casting tool can be closed and the liquid material can be supplied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manipulator (AREA)
  • Automatic Assembly (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Claims (9)

  1. Procédé de fabrication d'une pièce coulée avec une paroi dans laquelle est formée au moins une cavité, dans lequel on introduit un corps creux (1), qui forme la cavité, dans un outil de coulée (5) et on introduit ans l'outil de coulée un matériau liquide, qui enveloppe le corps creux (1), dans lequel le corps creux (1) est saisi par un moyen de transport (7) pour le mouvement de montage dans l'outil de coulée (5), au cours duquel le corps creux (1) est guidé de force avec ses régions de corps de raccordement (35), caractérisé en ce que l'on déplace le corps creux (1) avec ses régions de corps de raccordement (35) hors du moyen de transport (7) dans un outil de réception (31) en tant que partie de l'outil de coulée (5).
  2. Procédé selon la revendication 1, caractérisé en ce que le corps creux (1) est tiré dans le moyen de transport (7).
  3. Procédé selon la revendication 1, caractérisé en ce que le corps creux (1) est déplacé hors du moyen de transport (7) au moyen d'un outil de poussée (39).
  4. Dispositif pour un procédé de fabrication d'une pièce coulée avec une paroi dans laquelle est formée au moins une cavité, dans lequel le corps creux (1), qui forme la cavité, est introduit dans un outil de coulée (5), et un matériau liquide qui enveloppe le corps creux (1) est introduit dans l'outil de coulée, dans lequel le corps creux (1) est saisi par un moyen de transport (7) pour le mouvement de montage dans l'outil de coulée (5), au cours duquel le corps creux (1) est guidé de force avec ses régions de corps de raccordement (35), dans lequel le corps creux (1) est déplacé avec ses régions de corps de raccordement (35) hors du moyen de transport (7) dans un outil de réception (31) en tant que partie de l'outil de coulée (5), caractérisé en ce que le moyen de transport (7) présente des faces de guidage (9; 11), sur lesquelles le corps creux est appliqué.
  5. Dispositif selon la revendication 4, caractérisé en ce que les faces de guidage (9; 11) présentent des découpes libres (17; 19) tournées l'une vers l'autre, par lesquelles au moins une partie coudée (21) du corps creux (1) peut sortir des faces de guidage (9; 11).
  6. Dispositif selon la revendication 5, caractérisé en ce que le moyen de transport (7) présente au moins une face d'emboîtement (27), qui coopère avec une face d'emboîtement opposée (29) de l'outil de réception (31).
  7. Dispositif selon la revendication 5, caractérisé en ce que l'outil de réception (31) présente un profil de réception (33) pour les régions de corps de raccordement (35) du corps creux.
  8. Dispositif selon la revendication 5, caractérisé en ce que l'outil de poussée (39) est réalisé sous la forme d'une butée déplaçable.
  9. Dispositif selon la revendication 8, caractérisé en ce que le dispositif présente un système de détection (41), qui détecte au moins un paramètre de mouvement de l'outil de poussée (39).
EP13159480.6A 2013-03-15 2013-03-15 Procédé et dispositif pour le procédé de fabrication d'une pièce coulée Not-in-force EP2777843B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP13159480.6A EP2777843B1 (fr) 2013-03-15 2013-03-15 Procédé et dispositif pour le procédé de fabrication d'une pièce coulée
US14/775,918 US20160031000A1 (en) 2013-03-15 2014-02-13 Method And Device For Producing A Cast Workpiece
CN201480014674.5A CN105121060A (zh) 2013-03-15 2014-02-13 用于制造铸造件的方法和装置
PCT/EP2014/052797 WO2014139748A1 (fr) 2013-03-15 2014-02-13 Procédé et dispositif d'élaboration d'une pièce moulée

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13159480.6A EP2777843B1 (fr) 2013-03-15 2013-03-15 Procédé et dispositif pour le procédé de fabrication d'une pièce coulée

Publications (2)

Publication Number Publication Date
EP2777843A1 EP2777843A1 (fr) 2014-09-17
EP2777843B1 true EP2777843B1 (fr) 2015-09-30

Family

ID=47900855

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13159480.6A Not-in-force EP2777843B1 (fr) 2013-03-15 2013-03-15 Procédé et dispositif pour le procédé de fabrication d'une pièce coulée

Country Status (4)

Country Link
US (1) US20160031000A1 (fr)
EP (1) EP2777843B1 (fr)
CN (1) CN105121060A (fr)
WO (1) WO2014139748A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112703248B (zh) 2018-09-13 2025-03-25 豪夫迈·罗氏有限公司 具有改良链置换能力的突变型dna聚合酶

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59144553A (ja) * 1983-02-07 1984-08-18 Sumitomo Metal Ind Ltd パイプ鋳包み用鋳型型込め装置
JPS60133950A (ja) * 1983-12-22 1985-07-17 Aisin Seiki Co Ltd 中子セツト装置
CN85105915A (zh) * 1985-08-05 1987-02-25 克莱因香林及贝克尔股份公司 浇铸用泥芯的泥芯盒
DE4322181A1 (de) * 1993-06-29 1995-01-12 Hottinger Adolf Masch Vorrichtung und Verfahren zum Greifen eines Gießereikerns, insbesondere eines Sohlenkerns
JPH09287517A (ja) * 1996-04-22 1997-11-04 Unisia Jecs Corp 内燃機関用ピストン及びその内燃機関用ピストンの金型
US5979298A (en) * 1997-05-08 1999-11-09 Zellner Pistons, Llc Cooling gallery for pistons
KR100657374B1 (ko) * 2005-06-28 2006-12-14 동서공업주식회사 주조용 솔트코어의 자동로딩장치
DE102006034341A1 (de) * 2006-07-23 2008-01-31 Fritz Winter Eisengiesserei Gmbh & Co. Kg Verfahren zum Herstellen eines gegossenen Bauteils mit einem eingegossenen Rohr
US8210232B2 (en) * 2007-09-20 2012-07-03 GM Global Technology Operations LLC Lightweight brake rotor and components with composite materials
CN101417328A (zh) * 2008-09-28 2009-04-29 浙江杭机铸造有限公司 一种汽缸泥芯型组合
IT1396481B1 (it) * 2009-11-17 2012-12-14 Maprof Sas Di Renzo Moschini E C Metodo di fabbricazione di corpi cavi monolitici mediante un processo di colata o di stampaggio ad iniezione.
JP5916494B2 (ja) * 2012-04-18 2016-05-11 日立オートモティブシステムズ株式会社 内燃機関用ピストンの製造方法

Also Published As

Publication number Publication date
US20160031000A1 (en) 2016-02-04
CN105121060A (zh) 2015-12-02
EP2777843A1 (fr) 2014-09-17
WO2014139748A1 (fr) 2014-09-18

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