EP0608518B1 - Vorrichtung zum Entgraten von Formen und Kernen - Google Patents

Vorrichtung zum Entgraten von Formen und Kernen Download PDF

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Publication number
EP0608518B1
EP0608518B1 EP19930119491 EP93119491A EP0608518B1 EP 0608518 B1 EP0608518 B1 EP 0608518B1 EP 19930119491 EP19930119491 EP 19930119491 EP 93119491 A EP93119491 A EP 93119491A EP 0608518 B1 EP0608518 B1 EP 0608518B1
Authority
EP
European Patent Office
Prior art keywords
deburring
holding member
displacement
holding
ring
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
EP19930119491
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0608518A2 (de
EP0608518A3 (de
Inventor
Werner Landua
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.)
Hottinger Maschinenbau GmbH
Original Assignee
Adolf Hottinger Maschinenbau GmbH
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 Adolf Hottinger Maschinenbau GmbH filed Critical Adolf Hottinger Maschinenbau GmbH
Publication of EP0608518A2 publication Critical patent/EP0608518A2/de
Publication of EP0608518A3 publication Critical patent/EP0608518A3/de
Application granted granted Critical
Publication of EP0608518B1 publication Critical patent/EP0608518B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/18—Finishing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/384—By tool inside hollow work
    • Y10T83/386—With expanding mandrel

Definitions

  • the invention relates to a device for deburring molds or cores, especially in narrow spaces between such molds (see: DE-C-4002555).
  • sand molds or cores such as water jacket cores, sole cores or combinations of the like, which are provided for casting metallic parts, such as engine blocks or the like.
  • the invention is therefore based on the object of providing a device with which automatic deburring can be carried out in narrow, deep spaces between core or molded parts.
  • the stated object is achieved in a device of the type mentioned at the outset by the characterizing features of claim 1.
  • the deburring element is a ring provided with a separation point, the separation point in particular being inclined to the axis, preferably at 45 °.
  • An embodiment for more complex parts to be deburred provides that deburring elements are mounted so as to be axially displaceable as deburring elements in such a way that they move back in one direction when displaced and move forward when displaced in the opposite direction, the deburring elements having a deburring section which is underneath extends a finite angle to the direction of displacement from the holding body.
  • the holding body can have a wide variety of shapes. In a preferred embodiment, it is cylindrical in the form of a cylinder, ie it has the cross section of a circle; it can also have a quadrangular or polygonal cross-section or a cross-section of any contour. As a rule, however, the cross section is about the height of the holding body remain essentially the same.
  • the holding body with its deburring bodies, which are preferably arranged in its lower region and are at least radially, possibly also axially movable, with deburring sections oriented perpendicular to the direction of displacement, can be immersed in the spaces between the workpiece to be machined until the deburring sections of the deburring lamellae engage under the burrs.
  • the device according to the invention can also be designed such that deburring sections protrude inwards, i.e. against one another, for example in the case of a cylindrical casing-shaped holding body radially inwards.
  • the radial extent of the deburring sections need not be the same over the entire circumference of the holding body, but can be different, for example flattened or shortened in particularly narrow areas.
  • a further preferred embodiment of the device according to the invention is characterized in that the deburring lamellae are movably mounted in a space between the holding body and a retaining ring surrounding it with play in the direction of displacement and perpendicularly thereto.
  • deburring lamellae are designed as an angular part with a guide leg extending in the direction of displacement, which ensures reliable guiding of the deburring lamellae.
  • the deburring lamellae sit on an inclined surface, the entire arrangement in particular having an essentially circular cross section.
  • deburring sections of the deburring elements extend radially to different extents or have different lengths in different circumferential regions, that is to say if necessary the deburring sections of the individual deburring lamellae extend to different extents perpendicular to the displacement direction or have different lengths.
  • a plurality of holding bodies with at least radially resiliently mounted deburring lamellae are arranged and in particular that a plurality of holding bodies with deburring lamellae axially displaceable in them and movable inwards and outwards are arranged on a mounting plate with deburring sections extending perpendicular to the direction of displacement are.
  • the device according to the invention for deburring molds or cores initially has a holding body 1 which, in the preferred embodiment shown, basically has the shape of a cylinder jacket.
  • the holding body 1 can also have different types of contours, such as rectangular, polygonal contours or any cross-sectional shape. It is only essential that the cross-sectional shape is essentially the same over its height.
  • annular recess 2 is formed in its lower region, which is covered from the top to the outside, ie over its circumference by a retaining ring 3.
  • an expansion ring 4 is directly on the retaining body 1.
  • the upper region 6 of the expansion ring 4 is chamfered, for example at an angle from 30 ° to the longitudinal axis A of the holding body 1, and has a finite distance from the lower edge 7 of the holding ring 3.
  • a plurality of deburring lamellae 9 are arranged around the circumference of the holding body 1.
  • these are designed as angular parts and have a guide leg 11 which is aligned parallel to the axis A and projects into the recess 2.
  • a deburring section 12 is formed at an angle, which projects outwards, here radially outwards, in the space between the lower edge 7 of the retaining ring 3 and the bevel 6 of the expansion ring 4.
  • the width of the guide leg 11 is less than the width of the recess 2 between the retaining ring 3 and the area 8 of the holding body 1.
  • the deburring lamella 9 with the free end 13 of the deburring section 12 is pressed upwards by a burr on a workpiece to be machined (when moving downward) of the device according to the invention with the holding body 1 in the direction B), the deburring lamella slides along the bevel 6 on the one hand against the direction of movement B of the holding body 1 upwards, but on the other hand moves perpendicular to the direction of movement B in the direction C inwards, that is to say radially inwards .
  • the holding body 1 is again moved linearly upward against the direction of movement B (the back-and-forth movement extends, for example, over 10 mm)
  • the deburring section 12 comes to rest on a ridge with its outer upper edge, from which it comes down and at the same time pulled outward in the opposite direction C (radially) until the deburring lamella comes into contact with the retaining ring 3 with its guide leg 11. If the holding body 1 is then moved upward, the deburring lamella grazes 9 with the outer upper edge of its deburring section 12 from the burr of the shape or core to be machined.
  • the extent of the deburring section 12 can also be selected differently, for example in the case of a holding body 1 with a fundamentally cylindrical cross section, in adaptation to the workpieces to be machined, such as shapes or cores, as is the case in FIG. 2, where in very narrow areas between parts of such a workpiece , for example cylindrical parts of a sole core and between these projecting regions of a water jacket core (FIG. 3) is to be deburred.
  • the deburring sections in area 16 of FIG. 2 are shortened compared to those in area 17.
  • FIG. 1 shows a device for deburring according to the invention for the water jacket and sole core for an internal combustion engine.
  • FIG. 3 shows one Deburring device according to the invention for the water jacket and sole core for an internal combustion engine.
  • a plurality of holding bodies 1 in the configuration described with reference to FIG. 1 are fastened to a mounting plate 21, only one of which is shown in part in longitudinal section (left side) and in part in the external view with parts broken away.
  • a spring 22 elastically biased spring bolts 23 which are in the direction of the axis A and thus in the direction of movement B extend the device.
  • the spring bolts 23 come to rest in a region 23a of the water jacket core 24 and prevent the latter from detaching from the sole core 25.
  • a water jacket-sole-core combination is processed, which is shown in the lower part of FIG.
  • a workpiece consists of the aforementioned water jacket core 24 and the sole core 25, on which cylindrical sections 26 are formed in one piece.
  • the water jacket core 24 is seated on a lower part 27 of the sole core 25 and is held in this against displacement by pins 29 projecting into recesses 28.
  • burrs 32 of the water jacket core are formed between the cylinder parts 26, which protrude only over a small height above the plate 27.
  • burrs 33 remain in the upper region of the ribs 32;
  • burrs 34 remain at the same height on the inside of the outer wall 31. Burrs of this type are to be deburred by the device according to the invention, the space between the ribs 32 and the outer wall 31 and the cylinder sections 36 being only a few mm, for example 8 to 10 mm, the distance between the ridges 33, 34 to the upper edge of the water jacket core 24 can be several cm, for example about 10 cm.
  • the device according to the invention moves with its holding bodies 1 into the intermediate space 36 between the water jacket core 24 and the cylinder sections 26 of the sole core 25, the regions 16 of the deburring sections 12 of the deburring lamellae 9 protrude into the area 16a between the ribs 32 and the cylinder part 26 of the sole core 25, while the areas 17 of the deburring lamellae 9 protrude into or are aligned with an area 17a offset by 90 ° to this.
  • the device according to the invention first moves the holding body 1 into the space between the wall 31 and the cylinder parts 26 until the spring bolts 23 come into contact with the water jacket core 24 in the areas 23a (FIG. 4). When this is done, the deburring sections 12 of the deburring blades 9 are still above the ridges 33, 34. Then the mounting plate 21 and with it the holding body 1 are moved further downward, the deburring blades 9 initially, as described above, through the ridges 33, 34 are raised and move radially inwards.
  • FIG. 1 A further embodiment of the device according to the invention is shown in longitudinal section in FIG. Basically identical parts are provided with the same reference symbols as above.
  • This device in turn also has a holding body 1 in the form of a cylinder jacket.
  • An inner ring 1 a is fastened to this in the lower region, as by gluing, which can optionally also be formed in one piece with the holding body 1.
  • a radial deburring element 9a in the form of a ring 10 provided with a separating point 10a is pushed over the inner ring 1a and is held axially by a supporting ring 4a which is firmly seated on the inner ring 1 or is integrally connected to it.
  • either the parts 1, 1a, 4a are all separate parts that are glued to one another, or the inner ring 1a is formed in one piece either with the holding body 1 or with the support ring 4a and firmly connected to the other part.
  • the radial play between the inner ring 1a and the deburring element 9a is, for example, such that the outer diameter of the inner ring 1a is 80 mm, but the inner diameter of the deburring ring 9a is 81 mm.
  • the radial width of the slot or the separation point 10a is dimensioned such that the deburring ring 9a can yield radially in the desired manner, that is to say can reduce its diameter.
  • the separation point 10a is inclined to the axis A of the holding body, preferably at 45 °, so that the two ends of the ring overlap in this area and thus deburring takes place on the deburring edge 13 over the entire circumference.
  • this device can also basically have other features, as described above, for example, the ring does not have to be completely circular-symmetrical, in particular in its outer region, but can have different radial extents in different angular areas, depending on the shape of the parts to be deburred.
  • the deburring device according to FIG. 5 is used in principle, as was described above with reference to FIGS. 3 and 4. To reduce the cross section, however, there is no axial movement relative to the holding body 1 here, as is the case with the lamellae of FIGS. 1 and 2, but the deburring ring 9 rather reduces its diameter, which is possible due to the play mentioned and the slot 10a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
EP19930119491 1993-01-27 1993-12-03 Vorrichtung zum Entgraten von Formen und Kernen Expired - Lifetime EP0608518B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4302227 1993-01-27
DE19934302227 DE4302227C2 (de) 1993-01-27 1993-01-27 Vorrichtung zum Entgraten von Formen und Kernen

Publications (3)

Publication Number Publication Date
EP0608518A2 EP0608518A2 (de) 1994-08-03
EP0608518A3 EP0608518A3 (de) 1995-02-01
EP0608518B1 true EP0608518B1 (de) 1997-10-08

Family

ID=6479042

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930119491 Expired - Lifetime EP0608518B1 (de) 1993-01-27 1993-12-03 Vorrichtung zum Entgraten von Formen und Kernen

Country Status (6)

Country Link
US (1) US5477908A (ja)
EP (1) EP0608518B1 (ja)
JP (1) JPH06234043A (ja)
DE (2) DE4302227C2 (ja)
DK (1) DK0608518T3 (ja)
ES (1) ES2110048T3 (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004001436B3 (de) * 2004-01-09 2005-06-16 Rautenbach-Guß Wernigerode GmbH Vorrichtung und Verfahren zum Entgraten von Formkörpern
KR100629316B1 (ko) 2004-08-31 2006-10-11 주식회사 진성티이씨 플로팅 실 이송 장치
CN107186187A (zh) * 2017-06-20 2017-09-22 石家庄钢铁有限责任公司 一种矩形连铸坯毛刺的可移动清理装置
AT522989B1 (de) 2019-10-03 2021-12-15 Fill Gmbh Oberflächenbehandlungsverfahren

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5347551B2 (ja) * 1972-02-08 1978-12-21
JPS608882Y2 (ja) * 1979-10-09 1985-03-30 日本鋼管株式会社 連鋳スラブの切断バリ除去装置
DE3028666C2 (de) * 1980-07-29 1982-09-23 Bayerische Motoren Werke AG, 8000 München Vorrichtung zum Entgraten von Sandkernen
JPS58187257A (ja) * 1982-04-24 1983-11-01 Nissan Motor Co Ltd 鋳ばり切断装置
JPS5921523A (ja) * 1982-07-28 1984-02-03 Asahi Chem Ind Co Ltd 希土類元素のオキシサルフアイドの製造法
DD211071B1 (de) * 1982-11-01 1986-12-10 Beier Hans Michael Vorrichtung zum abtrennen von ueberschuessigem material an gussstuecken
DE3322567C2 (de) * 1983-06-23 1985-05-23 Georg Fischer GmbH, 4020 Mettmann Einrichtung zum Entgraten von als Gießerei-Kerne oder dergleichen ausgebildeten Werkstücken
JPS6178536A (ja) * 1984-09-26 1986-04-22 Toyota Motor Corp 中子のばり取り機
DD248525A1 (de) * 1985-06-10 1987-08-12 Harzer Werke Veb Verfahren und vorrichtung zum entgraten von gussstuecken
JPS63303678A (ja) * 1987-06-02 1988-12-12 Toyota Motor Corp バリ取り方法
JPH02220765A (ja) * 1989-02-20 1990-09-03 Yaskawa Electric Mfg Co Ltd バリ取り工具保持装置
DE4002555C1 (ja) * 1990-01-30 1991-05-29 Adolf Hottinger Maschinenbau Gmbh, 6800 Mannheim, De
FR2665394B1 (fr) * 1990-08-03 1994-06-10 Figuereo Blaise Procede et machine automatique de fabrication d'anneaux calibres a partir d'un extrudat file ou profile.
DE4124508C1 (en) * 1991-07-24 1992-07-16 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Flash removal device for mouldings e.g. foundry core - includes baseplate mounted on base with rubber dampers interposed and with magnetic vibrator under baseplate

Also Published As

Publication number Publication date
EP0608518A2 (de) 1994-08-03
EP0608518A3 (de) 1995-02-01
US5477908A (en) 1995-12-26
DE4302227C2 (de) 1995-05-24
DE59307504D1 (de) 1997-11-13
ES2110048T3 (es) 1998-02-01
DK0608518T3 (da) 1998-05-18
JPH06234043A (ja) 1994-08-23
DE4302227A1 (de) 1994-07-28

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