WO2020217199A1 - Vorrichtung und verfahren zur entnahme mindestens eines kühlelementes aus einem wenigstens teilweise entformten gussteil, verfahren zur einbringung mindestens eines kühlelementes in einen formkern einer gussteilform, kühlelement sowie gussteil - Google Patents
Vorrichtung und verfahren zur entnahme mindestens eines kühlelementes aus einem wenigstens teilweise entformten gussteil, verfahren zur einbringung mindestens eines kühlelementes in einen formkern einer gussteilform, kühlelement sowie gussteil Download PDFInfo
- Publication number
- WO2020217199A1 WO2020217199A1 PCT/IB2020/053845 IB2020053845W WO2020217199A1 WO 2020217199 A1 WO2020217199 A1 WO 2020217199A1 IB 2020053845 W IB2020053845 W IB 2020053845W WO 2020217199 A1 WO2020217199 A1 WO 2020217199A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cooling element
- removal
- cast part
- cooling
- mold
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
- B22D15/04—Machines or apparatus for chill casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D30/00—Cooling castings, not restricted to casting processes covered by a single main group
Definitions
- the invention relates to a device for removing at least one cooling element from an at least partially demolded cast part, in particular from one of a
- Light metal alloy formed cast housing for an electric motor which has a device for removing the at least one cooling element.
- the invention further relates to a method for removing at least one cooling element from an at least partially demolded casting, a method for introducing at least one cooling element into a mold core of a casting mold, a cooling element and a casting.
- the present invention is based on the object of creating a device of the type mentioned at the outset that allows the at least one automated removal
- Cooling element enables:
- the removal device comprises a means for gripping a removal projection attached to the at least one cooling element.
- the removal device is preferably designed to be movable in order to remove the at least one cooling element from a cast part arranged in a stationary manner. It is also conceivable that a removal device is arranged in a stationary manner and a cast part for removing the cooling element is moved relative to a removal device. A manual removal of the cooling elements is advantageously not necessary. Furthermore, centering can advantageously be brought about by the removal device, which enables the at least one removed cooling element to be always positioned in the same way. This enables automated storage in a storage pallet for reuse.
- Cooling channels have a particularly low porosity in order to prevent loss of coolant
- a mold core which can be a sand or salt core, for example, into a casting mold with which a casting is made.
- the casting mold can be a permanent mold such as a permanent mold or a one-time mold
- the removal projection is formed in one piece on the cooling element, connected to it in a materially bonded manner, or releasably connectable to the cooling element.
- the cooling element is preferably made of gray cast iron or a steel, in particular one
- a cooling element has several removal projections. Should one of the removal projections be damaged, another can advantageously be used to remove the cooling element from the cast part. An immediate exchange is not necessary.
- a one-piece molding advantageously enables simple production, while an integral connection enables a damaged removal projection to be replaced or repaired by welding and soldering.
- the gripping means expediently comprises at least one pair of rails which are spaced apart from one another and which are set up to engage behind the removal projection.
- the removal projection can advantageously be gripped by a pair of rails in such a way that only removal forces are transmitted which preferably act perpendicularly or almost perpendicularly to a longitudinal direction of the rails.
- the removal projection of the at least one cooling element comprises at least a pair of spaced apart rails which are designed to be gripped from behind by the gripping means. That is advantageous
- Removal device structurally simplified and thereby enables longer service life.
- the gripping means has a plurality of pairs of rails which, in the circumferential direction, are essentially rotationally symmetrical, preferably
- cylindrical or frustoconical removal head are arranged side by side and in particular extend parallel or obliquely to its longitudinal axis.
- a plurality of cooling elements can advantageously be removed at the same time in a single work step and centered by the removal head when they are removed.
- the cooling elements are introduced into an essentially reddening-symmetrical, preferably cylindrical or frustoconical mold core of a casting mold, which forms a cavity for receiving the rotor or a rotor carrier of the electric motor.
- cooling elements which preferably form flush surface sections of a mold core and are in contact with a melt when a casting mold is filled, each has a surface whose outer contour is almost identical to a functional inner contour section of a cavity of a casting from which the
- Cooling element is removable. A near-net shape production of a cast part is advantageously possible.
- a particularly good fixation of the cooling elements in the mold core and their particularly good gripping ability when they are removed from the cast part are achieved when a
- Removal projection is arranged on one side of a cooling element that faces away from a side that is in contact with the melt when a casting mold is being filled.
- the removal projection on the one hand can form a latching connection with the mold core and can also be gripped by the gripping means.
- a mold core which is particularly suitable for the method according to the invention can be designed in one piece or in several parts, in particular in two parts. There is advantageously a particularly high degree of design freedom.
- the at least one cooling element can be introduced into the mold core in such a way that a plurality of surface sections are formed, at least one of which is formed by an outer side of the cooling element, it can be introduced before Molding sand are placed in a molding core production tool.
- a stationary arrangement in the mold core production tool can be brought about by the removal projection, which for this purpose engages in a holding device in the tool.
- the removal projection advantageously acts for fixing in the mold core production tool and as a counter-holder for a gripping means of a device for removing at least one cooling element from an at least partially sanded cast part.
- each pair of rails can engage behind an associated removal projection when the removal head moves in a straight line into the cavity.
- Several cooling elements can advantageously be removed in one work step. The centering of the
- each of the rails is detachable with an essentially rotationally symmetrical, preferably cylindrical or frustoconical one
- Removal head of the removal device or connectable to the at least one cooling element Removal head of the removal device or connectable to the at least one cooling element. Damaged rails are advantageously easy to replace. Maintenance and / or repair work is reduced.
- a diameter of an essentially frustoconical removal head of the removal device increases in a direction in which the removal head enters a casting cavity for removal of
- Cooling elements is movable, and which is preferably coaxial to a longitudinal direction of the removal head. This enlargement causes the formation of a draft angle, which ensures that the forces required to remove cooling elements from a cast part are applied in a linearly increasing manner. Voltage peaks, which could damage the removal head, are advantageously avoided.
- a removal projection of a cooling element has a T-shaped cross section and preferably extends into a longitudinal direction of the cooling iron.
- T-legs can advantageously be gripped or gripped from behind by the gripping means, in particular by a pair of rails, in such a way that no transverse forces or bending moments occur which could damage the
- the thickness of the T-legs increases, preferably linearly, from a first end to a second end, in particular in the longitudinal direction of a cooling element
- a linear movement of a removal head or that of the cast part relative to a stationary removal head with a gripping means that is a Has a pair of rails for engaging behind the T-legs are converted into a movement of the cooling elements with a movement component perpendicular to the direction of movement of the removal head.
- a detachment of cooling elements from the cast part is advantageously effected.
- a linear movement of the cast part or the removal head can also advantageously be converted into a differently directed movement of the at least one cooling element.
- Rails which are preferably flat and have a constant thickness, slide along the T-legs for this purpose.
- the removal head also has a draft angle, for example between 2 and 5 degrees, preferably 4 degrees, a particularly short path is required in combination with T-legs of varying thickness during a removal movement in order to apply a sufficiently large force to the at least one cooling element to detach from the cast part, to center it and finally to remove it from one
- Cast part wall section formed, which rests with one side against the at least one cooling element during a cast part production and which has a secondary dendrite arm spacing between 3 and 30 m, preferably between 15 and 25 ⁇ m. Particularly high strength with low porosity is advantageously achieved. A low porosity is necessary in particular when the cast part wall section delimits a cooling channel in which a liquid cooling medium is guided during engine operation.
- a cast part comprises a groove which is provided for receiving a sealing ring, pores have a maximum diameter of 0.9 mm, preferably between 0.5 and 0.8 mm.
- a particularly dense cast part can advantageously be produced. Loss of coolant during engine operation is prevented.
- FIG. 3 shows a removal device according to the invention when removing
- FIG. 5 shows a one-piece mold core provided with cooling elements according to the invention and an associated mold core production tool.
- a device (1) shown in a perspective illustration in FIG. 1a, for removing eight identical metallic cooling irons (2) arranged in a circle next to one another from a cast part not shown in FIG. 1a essentially comprises a
- the removal device (1) comprises rails (8, 9) which extend in the longitudinal direction of the removal head (3) and are formed from hardened steel and have a constant thickness and are arranged in pairs next to one another in the circumferential direction and by several
- Screws (10) are detachably connected to the removal head (3). It is also conceivable that the rails (8, 9) have a varying thickness in their longitudinal direction.
- the rails (8, 9) are tapered at both ends and are provided for one
- the removal head (3) of the removal device (1) is moved into the casting in the direction of an arrow (11) shown in FIG arrows (12) shown by way of example in FIG. 1b.
- the cooling irons (2) are removed from one of the parts shown in Fig. 3 released, centered and can be removed in the same work step.
- a removal device (1) is shown in detail in Fig. 1c in a perspective view and in Fig. 1d in an exploded view.
- a cooling element (2a) shown in a perspective top view of an outside in FIG. 2a has a curved surface (14), the outside contour of which is almost identical to a functional inside contour section of a cavity of a cast part (22) designated in FIG. 3 with (23) ), from which a cooling element (2a) can be removed.
- the surface (14) is also provided to come into contact with a metal melt with which a casting mold is filled. This results in a particularly good casting quality, in particular high strength and low porosity in a casting area adjoining the cooling iron (2a). This can, for example, extend up to 25 mm from the cooling iron (2a) and have a porosity with pores with a Feret diameter of a maximum of 0.8 mm.
- a first projection (16) is integrally formed on a first end face (15), while two further projections (18, 19) are integrally formed on a second end face (17).
- Projections (16, 19) are provided to be engaged from behind by a mold core into which the cooling iron (2b) is inserted. This achieves both a fixation in the mold core and a flush termination of a surface of the mold core with the curved surface (14) of the cooling iron (2a).
- a cooling iron (2a) shown in a perspective view of an inner side in FIG. 2b comprises a removal projection (5a) which has a T-shaped cross section and extends in the longitudinal direction of the cooling iron (2a).
- a thickness of T-legs (7a) increases linearly from a first end (20) to a second end (21). This creates a crooked Plane created along which rails shown in Fig. 1 and labeled (8, 9) slide in the direction of an arrow (11a) during an insertion movement of a removal device, not shown in Fig. 2.
- FIG. 3 where parts that are the same or function in the same way are designated by the same reference numbers as in FIGS. 1 and 2 and the letter b is added to the relevant reference number.
- Housing (22) for an electric motor comprises a substantially frustoconical cavity (23) with a surface line inclined by 1 degree relative to the cone axis, which is provided for receiving a stator (not shown in FIG. 3) or a stator carrier of the electric motor.
- a removal device (1b) for cooling irons (2b) is inserted into the cavity (23), the rails (8b, 9b) of which engage behind T-shaped removal projections (5b) of the cooling irons (2b) and which is in an initial position in FIG. 3a, in which no extraction forces act on the cooling iron (2b).
- Each cooling iron (2a) lies and adheres with a surface designated by (14) in FIGS. 2a and b against an associated cast part wall section (24).
- Movement component is caused in a radial direction of the cavity (23).
- the cooling irons (2b) are separated from the cast part (22).
- a gap (25) is formed between the cooling irons (2b) and the associated cast part wall section (24).
- the chill irons (2b) are held by the removal device (1b) and can be moved in a direction opposite to that of an insertion direction
- the removal device (1b) is introduced into the cavity on a first side and out of the cavity on a side facing away from the first side
- Cavity (23) emerges and takes the cooling iron (2b) with it. This advantageously prevents individual cooling irons (2b) from getting stuck when they are moved out in the direction of movement opposite to the insertion direction and from causing a standstill in an automated removal process.
- FIG. 4 where parts that are the same or have the same effect are denoted by the same reference numbers as in FIGS. 1 to 3 and the letter c is added to the relevant reference number.
- Sand core parts (27, 28) which can be connected to one another by a plug-in and adhesive connection by inserting a ring-like projection (29) of a first mold core part (27) into a groove not shown in FIG. 4 and having an adhesive.
- FIG. 4c Several material recesses (30) are set up to accommodate cooling irons (2c) in the sand core (26), with T-legs (7c) of a removal projection (5c) being gripped from behind by two sand webs (31); While a projection (16c) of the cooling iron (2c) shown in FIG. 4c is intended to be inserted into a pocket (32) in the sand core part (27), another projection (19c) engages in a pocket (33) the sand core part (28). In one shown in Fig. 4b in a perspective view, assembled
- a total of eight cooling irons (2c) are introduced into the sand core (26).
- the surfaces of sand bars (34) are flush with the cooling iron surfaces (14c) and form a flat overall surface which is intended to be in contact with a molten metal with which the casting mold is filled when a casting mold is being filled.
- a cast part produced with such a core is produced near net shape.
- Sand core part (). Reference is now made to FIG. 5, where parts that are the same or function in the same way are denoted by the same reference numbers as in FIGS. 1 to 4 and the respective reference number is accompanied by the letter d.
- cooling irons (2d) are shown in a sectioned side view in FIG. 5c
- Mold core production tool (36) introduced and during a core production
- the mold core production tool (36) comprises an upper part (37) and a lower part (38), which enclose a space into which molding sand and cooling irons (2d) can be introduced for core production and which can be moved relative to one another around a
- Manufactured mold core can be found.
- a top side (14d) of the chill iron (2d) rests against a mold wall surface (39).
- retaining recesses (40) are provided into which retaining projections (5d) of the cooling irons (2d) engage, whereby a fixed location in the For core production tool (36) is ensured.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Induction Machinery (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202080030653.8A CN114096363B (zh) | 2019-04-24 | 2020-04-23 | 用于从至少部分脱模的铸件中移除至少一个冷却元件的设备和方法、将至少一个冷却元件引入铸件模具的型芯中的方法、冷却元件和铸件 |
PL20722666T PL3810357T3 (pl) | 2019-04-24 | 2020-04-23 | Urządzenie zdejmujące i sposób zdejmowania co najmniej jednego elementu chłodzącego z co najmniej częściowo rozformowanego odlewu, sposób wprowadzania co najmniej jednego elementu chłodzącego do rdzenia formy odlewniczej, element chłodzący oraz odlew |
EP20722666.3A EP3810357B1 (de) | 2019-04-24 | 2020-04-23 | Vorrichtung und verfahren zur entnahme mindestens eines kühlelementes aus einem wenigstens teilweise entformten gussteil, verfahren zur einbringung mindestens eines kühlelementes in einen formkern einer gussteilform, kühlelement sowie gussteil |
CA3137784A CA3137784C (en) | 2019-04-24 | 2020-04-23 | Device and method for removing at least one cooling element from an at least partially demoulded cast part, method for introducing at least one cooling element into a mould core of a cast part mould, cooling element and cast part |
US17/605,642 US20220203434A1 (en) | 2019-04-24 | 2020-04-23 | Device and Method for Removing At Least One Cooling Element From an At Least Partially Demoulded Cast Part, Method for Introducing At Least One Cooling Element Into a Mould Core of a Cast Part Mould |
JP2021559831A JP7421568B2 (ja) | 2019-04-24 | 2020-04-23 | 少なくとも部分的に離型された鋳造部品から少なくとも1つの冷却エレメントを取り外すためのデバイスおよび方法、少なくとも1つの冷却エレメントを鋳造部品金型の金型コア内に導入するための方法、冷却エレメントおよび鋳造部品 |
MX2021012757A MX2021012757A (es) | 2019-04-24 | 2020-04-23 | Dispositivo y metodo para retirar al menos un elemento de refrigeracion de una pieza de fundicion al menos parcialmente desmoldada, metodo para introducir al menos un elemento de refrigeracion en un nucleo de molde de un molde de pieza de fundicion, elemento de refrigeracion y pieza de fundicion. |
KR1020217037126A KR20210154819A (ko) | 2019-04-24 | 2020-04-23 | 적어도 부분적으로 탈형된 주조품으로부터 적어도 하나의 냉각 요소를 제거하기 위한 장치 및 방법, 주조품 몰드의 몰드 코어에 적어도 하나의 냉각 요소를 도입하는 방법, 냉각 요소 및 주조품 |
BR112021020431A BR112021020431A2 (pt) | 2019-04-24 | 2020-04-23 | Dispositivo e processo para a remoção de pelo menos um elemento de resfriamento de uma peça fundida ao menos parcialmente desmoldada, processo para a introdução de pelo menos um elemento de resfriamento em um núcleo de molde de um molde de peça fundida, elemento de resfriamento e peça fundida |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019110580.3 | 2019-04-24 | ||
DE102019110580.3A DE102019110580A1 (de) | 2019-04-24 | 2019-04-24 | Vorrichtung und Verfahren zur Entnahme mindestens eines Kühlelementes aus einem wenigstens teilweise entformten Gussteil, Verfahren zur Einbringung mindestens eines Kühlelementes in einen Formkern einer Gussteilform, Kühlelement sowie Gussteil |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2020217199A1 true WO2020217199A1 (de) | 2020-10-29 |
WO2020217199A9 WO2020217199A9 (de) | 2021-02-18 |
Family
ID=70476283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2020/053845 WO2020217199A1 (de) | 2019-04-24 | 2020-04-23 | Vorrichtung und verfahren zur entnahme mindestens eines kühlelementes aus einem wenigstens teilweise entformten gussteil, verfahren zur einbringung mindestens eines kühlelementes in einen formkern einer gussteilform, kühlelement sowie gussteil |
Country Status (12)
Country | Link |
---|---|
US (1) | US20220203434A1 (de) |
EP (1) | EP3810357B1 (de) |
JP (1) | JP7421568B2 (de) |
KR (1) | KR20210154819A (de) |
CN (1) | CN114096363B (de) |
BR (1) | BR112021020431A2 (de) |
CA (1) | CA3137784C (de) |
DE (1) | DE102019110580A1 (de) |
HU (1) | HUE058311T2 (de) |
MX (1) | MX2021012757A (de) |
PL (1) | PL3810357T3 (de) |
WO (1) | WO2020217199A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU502349B1 (de) | 2022-06-24 | 2024-01-09 | Nemak Sab De Cv | Gießform zur Herstellung eines aus einer Leichtmetalllegierung gebildeten Gussteils |
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DE102014101080B3 (de) * | 2014-01-29 | 2015-07-30 | Ks Aluminium-Technologie Gmbh | Vorrichtung zur Herstellung eines Zylinderkurbelgehäuses im Niederdruck- oder Schwerkraftgießverfahren |
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-
2019
- 2019-04-24 DE DE102019110580.3A patent/DE102019110580A1/de not_active Ceased
-
2020
- 2020-04-23 EP EP20722666.3A patent/EP3810357B1/de active Active
- 2020-04-23 JP JP2021559831A patent/JP7421568B2/ja active Active
- 2020-04-23 BR BR112021020431A patent/BR112021020431A2/pt active Search and Examination
- 2020-04-23 US US17/605,642 patent/US20220203434A1/en active Pending
- 2020-04-23 WO PCT/IB2020/053845 patent/WO2020217199A1/de unknown
- 2020-04-23 CA CA3137784A patent/CA3137784C/en active Active
- 2020-04-23 KR KR1020217037126A patent/KR20210154819A/ko not_active Application Discontinuation
- 2020-04-23 PL PL20722666T patent/PL3810357T3/pl unknown
- 2020-04-23 HU HUE20722666A patent/HUE058311T2/hu unknown
- 2020-04-23 CN CN202080030653.8A patent/CN114096363B/zh active Active
- 2020-04-23 MX MX2021012757A patent/MX2021012757A/es unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006006132A1 (de) * | 2006-02-10 | 2007-08-16 | Hydro Aluminium Alucast Gmbh | Verfahren und Vorrichtung zum Montieren einer Gießform zum Gießen eines Gussteils aus einer Metallschmelze |
DE102006053404A1 (de) * | 2006-11-10 | 2008-05-15 | Hydro Aluminium Alucast Gmbh | Gießform zum Gießen eines Gussteils und Verwendung einer solchen Gießform |
DE102008019200A1 (de) * | 2008-04-17 | 2009-10-22 | Honsel Ag | Verfahren und Anordnung zum Gießen von Leichtmetall-Zylindergehäusen sowie Gießform |
US20140319956A1 (en) * | 2013-04-26 | 2014-10-30 | GM Global Technology Operations LLC | Aluminum alloy rotor for an electromagnetic device |
DE102014101080B3 (de) * | 2014-01-29 | 2015-07-30 | Ks Aluminium-Technologie Gmbh | Vorrichtung zur Herstellung eines Zylinderkurbelgehäuses im Niederdruck- oder Schwerkraftgießverfahren |
Also Published As
Publication number | Publication date |
---|---|
CA3137784A1 (en) | 2020-10-29 |
US20220203434A1 (en) | 2022-06-30 |
CN114096363B (zh) | 2024-03-05 |
PL3810357T3 (pl) | 2022-07-11 |
DE102019110580A1 (de) | 2020-10-29 |
JP7421568B2 (ja) | 2024-01-24 |
MX2021012757A (es) | 2021-11-18 |
KR20210154819A (ko) | 2021-12-21 |
EP3810357A1 (de) | 2021-04-28 |
WO2020217199A9 (de) | 2021-02-18 |
CN114096363A (zh) | 2022-02-25 |
EP3810357B1 (de) | 2021-12-15 |
BR112021020431A2 (pt) | 2022-03-08 |
JP2022529902A (ja) | 2022-06-27 |
CA3137784C (en) | 2023-11-07 |
HUE058311T2 (hu) | 2022-07-28 |
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