US20160031000A1 - Method And Device For Producing A Cast Workpiece - Google Patents

Method And Device For Producing A Cast Workpiece Download PDF

Info

Publication number
US20160031000A1
US20160031000A1 US14/775,918 US201414775918A US2016031000A1 US 20160031000 A1 US20160031000 A1 US 20160031000A1 US 201414775918 A US201414775918 A US 201414775918A US 2016031000 A1 US2016031000 A1 US 2016031000A1
Authority
US
United States
Prior art keywords
hollow body
transporting device
tool
casting tool
hollow
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.)
Abandoned
Application number
US14/775,918
Other languages
English (en)
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
Publication of US20160031000A1 publication Critical patent/US20160031000A1/en
Assigned to ZF FRIEDRICHSHAFEN AG reassignment ZF FRIEDRICHSHAFEN AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HOFFMANN, MICHAEL, DINKEL, DANIEL
Abandoned legal-status Critical Current

Links

Images

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 is directed to methods and apparatus for producing a cast workpiece.
  • cast workpieces in a wall can also have flow channels or hollow areas.
  • a die cast component having a hollow area or flow channel for example, two production methods can be pursued. Where a flow channel is exactly straight, a tool can have a corresponding core for forming the flow channel. This procedure however allows for only simple, straight channel shapes. The length of the channel is also limited because the core must be removed from the workpiece.
  • a hollow body by means of which the flow channel to be produced is formed in the die cast component is produced as a preassembly component and is inserted into the die casting tool.
  • the material injected into the die casting mold surrounds the hollow body which remains in the wall of the die cast component. Consequently, the pre-produced hollow body must have a quality, particularly dimensional stability, suited to the final product.
  • a pre-produced hollow body is subject to a certain manufacturing tolerance which is also reflected, for example, in the bending radii. While faulty parts are when possible sorted out before they are fed into the production flow, not every dimensional deviation is readily detectable for early removal from further processing.
  • the hollow bodies are delivered without first being sorted and are fed to a magazine. Slight deviations are compensated during the feeding into the magazine so that the hollow body then fits in the magazine.
  • a charging robot removes or grasps the hollow body by means of gripping tongs and guides the hollow body to the die casting tool. If the hollow body cannot be inserted exactly into the tool, for example because of shape deviations (e.g., if one hollow end does not occupy the predetermined assembly position), then in the simplest case an error report is sent by a sensor arrangement present at the die casting tool or die casting apparatus. Consequently, the delay or downtime between the process of producing two die cast components will be prolonged such that, for example, the die casting mold cools down in an unwanted manner. Where there are slighter deviations in shape, the die cast workpiece is produced but the channel dimensions may perhaps be unsuitable. This can result in a faulty part unfit for us and that can only be melted down.
  • a source of error can arise where the gripping tongs can grasp the hollow body but, through an unfortunate combination of shape errors, the hollow body is inserted askew into the die casting tool.
  • One obvious possible solution would be to provide the hollow body with tool surfaces with which the hollow body could be definitively grasped by the gripping tongs. Tool surfaces of this type would however render the hollow body more expensive and would also have negative results for the flow cross sections of a flow channel to be produced.
  • this object is met in that, for movement of the assembly into the casting tool, the hollow body is received by a transporting device in which the hollow body is positively guided by its connection body areas.
  • the position of the hollow body is previously defined outside of the casting tool. If a problem has already occurred during this process step because the tubular body cannot be received by the transporting device due to a flawed geometry, another such hollow body can be fed to the die casting tool simultaneously with or following a slight delay by using a second transporting device. This assumes that two defective parts will rarely serially follow, closely in time, one after the other. Consequently, in this manner the process of feeding a hollow body into the die casting tool can be uninterruptedly maintained such that no unnecessary cooling-off phases or conditions at the die casting tool need be tolerated.
  • the hollow body In order to maintain an uninterrupted, defined assembly movement of the hollow body, the hollow body is moved out of the transporting device by the connection body areas of the hollow body into a takeover tool that forms part of the casting tool.
  • the takeover tool takes over, from the transporting device, the guide position for that process phase when the hollow body has reached its predetermined assembly position in the casting tool.
  • the hollow body is pulled into the transporting device. If the hollow body has dimensional deviations, the hollow body can nevertheless be received by the transporting device through this pulling movement.
  • the positive-guide function of the transporting device provides for compensation of slight deviations of the hollow body which, within limits, is elastic.
  • the hollow body is moved out of the transporting device by means of a pushing tool.
  • the pushing tool can have a simple design and can exert high assembly forces with low wear.
  • the pushing tool is constructed as a displaceable stop.
  • the transporting device advantageously has guide surfaces at which the hollow body abuts. Accordingly, the apparatus moving the hollow body into the transporting device need not assume a guide function. Consequently, the gripping function and, therefore, the grippers for the insertion movement into the transporting device are also simplified.
  • the guide surfaces have relief cuts which face one another and through which at least one angled portion of the hollow body can exit from the guide surfaces.
  • the transporting device For transporting and transferring each hollow body in the casting tool without interruption, the transporting device includes at least one positive engagement surface which cooperates with a complementary positive engagement surface of the takeover tool.
  • the takeover tool has a receiving profile for the connection surfaces of the hollow body.
  • the hollow body is always transferred from the transporting device to the casting tool in a defined manner.
  • the two ends of the hollow body are preferably provided in the form of connection surfaces.
  • the apparatus may include a sensor arrangement for detecting at least one movement parameter of the pushing tool. This enables detection of whether a component part is present in the transporting device and, additionally, whether the assembly position has been reached in the casting tool, as for example by measuring or sensing an increase in force at the pushing tool.
  • FIG. 1A diagrammatically depicts in cross section a transporting device in accordance with the invention for feeding a hollow body into a casting tool, shown in a first position of the transporting device;
  • FIG. 1B diagrammatically depicts in cross section the transporting device of FIG. 1A shown in a second position of the transporting device in conjunction with the casting tool;
  • FIG. 2 is a bottom plan view of the transporting device as depicted in FIG. 1 B;
  • FIG. 3 is a cross-sectional detail of the transporting device.
  • the process of producing a flow channel in a wall of a cast component part in accordance with the invention utilizes a hollow body 1 having an inner wall forming the flow channel.
  • a hollow body 1 for use in the process is produced, the form of which exactly envelopes 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 initial assembly position.
  • the hollow body 1 which may for example be U-shaped (as depicted herein), is positioned so as to be upright in the magazine 3 .
  • the hollow body is received by a transporting device 7 ( FIG. 1A ) for assembly movement of the hollow body 1 into a casting tool 5 ( FIG. 1B ).
  • FIGS. 2 and 3 depict several views of the transporting device 7 .
  • the transporting device is provided with guide surfaces 9 , 11 that form two respective open guide grooves 13 , 15 .
  • the guide surfaces 9 , 11 have relief cuts 17 , 19 which face one another and through which at least one angled portion 21 of the hollow body 1 can exit from the respective guide surfaces 9 , 11 and guide grooves 13 , 15 .
  • the angled area 21 is formed by a connecting crosspiece of the hollow body 1 which connects its two parallel flow portions 23 , 25 .
  • the hollow body 1 can instead have a completely different body contour.
  • the guide surfaces 9 , 11 form a hollow that defines an envelope suited to the specifications of the particular hollow body to be grasped and transported by the transporting device.
  • the dimensioning and angular positioning of the guide surfaces 9 , 11 are configured to take into account the intended or desired manufacturing tolerances of the hollow body 1 .
  • the transporting device 7 has at the ends thereof at least one positive engagement surface 27 for entry into a positive engagement connection or cooperation with a complementary positive engagement surface 29 of a takeover tool 31 as part of the casting tool 5 .
  • the positive engagement surface is formed as a journal sleeve that is engageable in a receiving sleeve which acts as takeover tool 31 .
  • the receiving sleeve centers the journal sleeve of the transporting device 7 . Because of the way in which two journal sleeves are formed at the transporting device 7 in this particular illustrative embodiment, the hollow body 1 is guided in a certain and defined manner with respect to all spatial coordinates of the casting tool 5 .
  • the takeover tool 31 defines a receiving profile 33 for connection body areas 35 of the hollow body 1 .
  • the receiving profile 33 may for example be constructed as a simple bore hole, assuming that the wall of the hollow body forms a simple annular cross section at both its ends.
  • implementations in which the receiving profile 33 has a journal shape on which the hollow body is fitted can alternatively be provided for other forms of the body 1 and are within the intended scope and contemplation of the invention.
  • the inventive process is initiated as the hollow body 1 is received by the transporting device 7 .
  • the transporting device 7 is preferably moved so that it overlaps with the hollow body 1 and the body 1 is then pulled [upwardly, in the drawings,] out of the magazine 3 .
  • the hollow body 1 is initially positioned in the magazine 3 in the same basic orientation in which the cast part is to be fabricated, and the body 1 is received into and grasped by the transporting device 7 by means of a gripper 37 which lowers the transporting device 7 into engagement with the hollow body 1 .
  • the guide surfaces 9 , 11 ensure precise receipt and positioning of the hollow body 1 within the transporting device 7 .
  • the hollow body 1 has slight angular errors, the hollow body 1 can nevertheless be pulled into the transporting device 7 by its connection portion 21 , and the guide surfaces 9 , 11 will align the hollow body 1 within the framework by the further pull-in movement taking advantage of the inherent elasticity of the body 1 .
  • the transporting device 7 can by way of example be carried by a robot which moves the transporting device 7 to the open casting tool 5 .
  • a manual transporting movement is also possible with correspondingly suitable component part sizes.
  • the displacing movement of the stop 39 can be monitored in a variety of ways by means of a sensor arrangement 41 .
  • a predetermined end position of the motion of the stop 39 can be detected by an optical sensor. If the sensor arrangement indicates that this predetermined end position has not been reached, then it must be assumed that the hollow body 1 was not correctly transferred to the casting tool 5 .
  • the predetermined end position of the stop 39 can also be detected by means of a force measurement of the stop movement.
  • the feeding of the hollow body 1 from a parts reservoir, such as a magazine, to the casting tool 5 always proceeds in a controlled manner such that a faulty positioning of the hollow body 1 in the casting tool 5 is to a great extent eliminated.
  • the casting tool can then be closed and liquid material supplied to cast the desired part.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manipulator (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Automatic Assembly (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
US14/775,918 2013-03-15 2014-02-13 Method And Device For Producing A Cast Workpiece Abandoned US20160031000A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13159480.6A EP2777843B1 (de) 2013-03-15 2013-03-15 Verfahren und Vorrichtung für das Verfahren zur Herstellung eines Gusswerkstücks
EP13159480.6 2013-03-15
PCT/EP2014/052797 WO2014139748A1 (de) 2013-03-15 2014-02-13 Verfahren und vorrichtung zur herstellung eines gusswerkstücks

Publications (1)

Publication Number Publication Date
US20160031000A1 true US20160031000A1 (en) 2016-02-04

Family

ID=47900855

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/775,918 Abandoned US20160031000A1 (en) 2013-03-15 2014-02-13 Method And Device For Producing A Cast Workpiece

Country Status (4)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112703248A (zh) 2018-09-13 2021-04-23 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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60133950A (ja) * 1983-12-22 1985-07-17 Aisin Seiki Co Ltd 中子セツト装置
US5771776A (en) * 1996-04-22 1998-06-30 Unisia Jecs Corporation Engine piston and metal mold
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
US20130277005A1 (en) * 2012-04-18 2013-10-24 Hitachi Automotive Systems, Ltd. Apparatus and Method for Producing Piston for Internal Combustion Engine

Family Cites Families (7)

* 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
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
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.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60133950A (ja) * 1983-12-22 1985-07-17 Aisin Seiki Co Ltd 中子セツト装置
US5771776A (en) * 1996-04-22 1998-06-30 Unisia Jecs Corporation Engine piston and metal mold
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
US20130277005A1 (en) * 2012-04-18 2013-10-24 Hitachi Automotive Systems, Ltd. Apparatus and Method for Producing Piston for Internal Combustion Engine

Also Published As

Publication number Publication date
WO2014139748A1 (de) 2014-09-18
CN105121060A (zh) 2015-12-02
EP2777843A1 (de) 2014-09-17
EP2777843B1 (de) 2015-09-30

Similar Documents

Publication Publication Date Title
KR102337111B1 (ko) 워크피스 유지장치
US10780610B2 (en) Insert molding die structure
US9992918B2 (en) Method for mounting electronic component
CN105129413A (zh) 一种双面上下料机
CN108263812B (zh) 一种上料装置
JP2005102715A (ja) スライドファスナーの製造装置
US20160031000A1 (en) Method And Device For Producing A Cast Workpiece
US10207879B2 (en) Method and apparatus for honing a workpiece
US10421511B2 (en) Production system and methods for producing different shell assembly variants
JP2013103300A (ja) 連続搬送組立装置
KR20200125723A (ko) 척의 발톱 교환용 핸드, 척의 발톱 자동 교환 방법 및 발톱 자동 교환 시스템
CN101795789B (zh) 用于金属容器的夹持和搬运设备
CN105324195A (zh) 传热管扩管装置及传热管扩管方法
CN111229967B (zh) 冲压机以及冲压成形方法
CN102319829B (zh) 自动化封罐定位装置
CN205114491U (zh) 一种双面上下料机
CN106825173B (zh) 多工位墩头机
CN104889628B (zh) 一种随行定位工装快速切换的自动化机构
KR101701261B1 (ko) 이중 오링의 결합장치
US20170349310A1 (en) Method of packaging a set of stacked lids and packaging device for sets of stacked lids
KR101747087B1 (ko) Cnc공작기계용 가공물 자동공급장치
KR20160140223A (ko) 반제품 자동 정렬 공급장치
EP3481763B1 (de) Greifer mit verriegelungshals
CN204771212U (zh) 随行定位工装快速切换的自动化机构
JP2010222216A (ja) 成形装置および成形型

Legal Events

Date Code Title Description
AS Assignment

Owner name: ZF FRIEDRICHSHAFEN AG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DINKEL, DANIEL;HOFFMANN, MICHAEL;SIGNING DATES FROM 20150929 TO 20160701;REEL/FRAME:039615/0191

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION