DE212950C - - Google Patents

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Publication number
DE212950C
DE212950C DENDAT212950D DE212950DA DE212950C DE 212950 C DE212950 C DE 212950C DE NDAT212950 D DENDAT212950 D DE NDAT212950D DE 212950D A DE212950D A DE 212950DA DE 212950 C DE212950 C DE 212950C
Authority
DE
Germany
Prior art keywords
grinding
grinding cylinder
milling
bearing
workpiece
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.)
Active
Application number
DENDAT212950D
Other languages
German (de)
Publication of DE212950C publication Critical patent/DE212950C/de
Active legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C3/00Milling particular work; Special milling operations; Machines therefor
    • B23C3/06Milling crankshafts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2220/00Details of milling processes
    • B23C2220/08Milling with the axis of the tool perpendicular to the workpiece axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2220/00Details of milling processes
    • B23C2220/64Using an endmill, i.e. a shaft milling cutter, to generate profile of a crankshaft or camshaft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Bei den bisher bekannten Verfahren, die Lagerstellen, besonders die . Hublagerstellen, zu schleifen, werden entweder Schleifräder benutzt, die an der Peripherie, oder Schleif-Zylinder, die an der Stirnfläche angreifen und in der Achsrichtung an der Lagerstelle hin und her geführt werden.In the previously known method, the bearing points, especially the. Pin bearings, to grind, either grinding wheels are used, which are attached to the periphery, or grinding cylinders, which attack the end face and in the axial direction at the bearing point and be led here.

Beide Verfahren haben folgende Nachteile: Da das Schleifrad nicht auslaufen kann, mußBoth methods have the following disadvantages: Since the grinding wheel cannot run out, it must

ίο man, um genau zylindrische Lagerstellen zu erzielen, die Schleiffläche desselben genau gerade halten. Besondere Sorgfalt erfordert auch das Abrunden der Kanten des Rades, da sonst die Hohlkehlen der Lagerstellen leicht ungleich groß bzw. ruiniert werden. Schleift man mit Schleifzylindern und schaltet in der Achsrichtung, so darf der Durchmesser der ersteren nicht größer sein als die Hälfte der Lagerstellenlänge, weil sonst letztere nicht zylindrisch wird. Das Schleifen wird dadurch unrationell, weil derartig kleine Zylinder keine Schleifleistung haben.ίο one to get exactly cylindrical bearings achieve, keep the sanding surface of the same exactly straight. Requires special care also the rounding of the edges of the wheel, otherwise the fillets of the bearing points are easy be unequal in size or ruined. You sand with sanding cylinders and switch to the Axial direction, the diameter of the former must not be greater than half of the Bearing length, because otherwise the latter will not be cylindrical. The grinding is done by it inefficient, because such small cylinders have no grinding capacity.

Bei dem nachstehend näher beschriebenen Verfahren wird ein Schleifzylinder verwendet, der an der Stirnseite angreift und dessen Durchmesser so groß sein kann, als die Lagerstelle lang ist. Es wird dies dadurch erreicht, daß der Schleifzylinder quer zu seiner Achse an der rotierenden Kurbelwelle vorbei geführt wird (s. Fig. 1, 2 und 3). Der Schleifzylinder greift hierbei zu Anfang in der Mitte der zu bearbeitenden Lagerstellen an, und zwar rriit seiner äußersten Kante. Er greift in seiner ganzen Breite erst dann an, wenn die Schaltung so weit vorgeschritten ist, bis die Achse der Antriebwelle des Schleifzylinders und die Achse der Kurbelwellenlagersteile in einer Ebene liegen. Die äußere Kante des Schleif Zylinders wird den Hohlkehlen der Lagerstelle entsprechend abgerundet. Man erzielt dabei, da beide Seiten mit derselben Kante geschliffen werden, genau gleiche Hohlkehlen. In the method described in more detail below, a grinding cylinder is used, which acts on the front side and whose diameter can be as large as the bearing point is long. This is achieved in that the grinding cylinder past the rotating crankshaft transversely to its axis is performed (see. Fig. 1, 2 and 3). The grinding cylinder At the beginning it engages in the middle of the bearing points to be machined, namely rriit its outermost edge. He intervenes in its full width only when the circuit has progressed so far until the axis of the drive shaft of the grinding cylinder and the axis of the crankshaft bearing parts lie in one plane. The outer edge of the grinding cylinder will be the fillets of the Bearing point rounded off accordingly. One achieves that both sides with the same Edge be sanded, exactly the same fillets.

Fig. 4 zeigt eine dementsprechende Anordnung. Beim Fräsen tritt an Stelle des Schleif-Zylinders ein der Form des Schleifzylinders entsprechender Fräser.4 shows a corresponding arrangement. Milling takes the place of the grinding cylinder a milling cutter corresponding to the shape of the grinding cylinder.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zum Fräsen oder Schleifen der Lagerstellen von Kurbelwellen oder anderen Drehkörpern mittels eines ringförmigen Stirnfräsers oder eines Schleifzylinders, dadurch gekennzeichnet, daß der Fräser oder der Schleifzylinder in Richtung quer zur Längsachse des Werkstückes an der zu fräsenden oder zu schleifenden Lagerstelle vorbei geführt wird, so daß mit einem der Länge des zu bearbeitenden Werkstückes entsprechend großen Fräser oder Schleifzylinder bei einmaligem Durchgang desselben eine glatte Fläche erzielt wird.Process for milling or grinding the bearing points of crankshafts or others Rotary bodies by means of an annular end mill or a grinding cylinder, thereby characterized in that the milling cutter or the grinding cylinder in the direction transverse to the longitudinal axis of the workpiece at the milling or grinding bearing point is passed over, so that with one of the Length of the workpiece to be machined according to the size of the milling cutter or grinding cylinder a smooth surface is achieved with a single pass. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT212950D Active DE212950C (en)

Publications (1)

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DE212950C true DE212950C (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1236303B (en) * 1956-07-07 1967-03-09 August Gunnar Ferdinand Wallgr Device for producing surfaces of rotation on crankshafts or similar workpieces
WO1997032680A1 (en) * 1996-03-09 1997-09-12 Naxos-Union Schleifmittel- Und Schleifmaschinenfabrik Ag Method and device for machining crankshaft bearing seats
WO2006056460A1 (en) 2004-11-26 2006-06-01 Niles-Simmons Industrieanlagen Gmbh Method for machining shaft bearing seats
DE102006014972A1 (en) * 2005-12-20 2007-06-21 Gebr. Heller Maschinenfabrik Gmbh Work piece e.g. crank shaft, machining method, involves mounting work piece in operating area, and finish-machining work piece in same operating area at rotation symmetrically established surface with grinding tool
DE102006024715A1 (en) * 2006-05-26 2007-11-29 Niles-Simmons Industrieanlagen Gmbh Production of a bearing seat of a main bearing and lifting bearing of crankshafts comprises molding, rolling all grooves or undercuts of the bearings, straightening rolling the crankshaft, fine machining, pre-milling and final milling
JP2012055983A (en) * 2010-09-06 2012-03-22 Jtekt Corp Machine tool with tool radius adjusting device
JP2012115961A (en) * 2010-12-02 2012-06-21 Okuma Corp Workpiece machining device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1236303B (en) * 1956-07-07 1967-03-09 August Gunnar Ferdinand Wallgr Device for producing surfaces of rotation on crankshafts or similar workpieces
WO1997032680A1 (en) * 1996-03-09 1997-09-12 Naxos-Union Schleifmittel- Und Schleifmaschinenfabrik Ag Method and device for machining crankshaft bearing seats
WO2006056460A1 (en) 2004-11-26 2006-06-01 Niles-Simmons Industrieanlagen Gmbh Method for machining shaft bearing seats
US7882633B2 (en) 2004-11-26 2011-02-08 Niles-Simmons Industrieanlagen Gmbh Method for machining shaft bearing seats
DE102006014972A1 (en) * 2005-12-20 2007-06-21 Gebr. Heller Maschinenfabrik Gmbh Work piece e.g. crank shaft, machining method, involves mounting work piece in operating area, and finish-machining work piece in same operating area at rotation symmetrically established surface with grinding tool
DE102006014972B4 (en) 2005-12-20 2018-06-21 Gebr. Heller Maschinenfabrik Gmbh Combined machining method and machining device
DE102006024715A1 (en) * 2006-05-26 2007-11-29 Niles-Simmons Industrieanlagen Gmbh Production of a bearing seat of a main bearing and lifting bearing of crankshafts comprises molding, rolling all grooves or undercuts of the bearings, straightening rolling the crankshaft, fine machining, pre-milling and final milling
WO2007137762A1 (en) * 2006-05-26 2007-12-06 Niles-Simmons Industrieanlagen Gmbh Method of machining the bearing seats of the main and rod bearings of crankshafts
DE102006024715B4 (en) * 2006-05-26 2008-07-24 Niles-Simmons Industrieanlagen Gmbh Method for processing the bearing seats of the main and stroke bearings of crankshafts and machine tool for carrying out the method
US8020293B2 (en) 2006-05-26 2011-09-20 Niles-Simmons Industrieanlagen Gmbh Method for machining the bearing seats of the main and rod bearings of crankshafts
JP2012055983A (en) * 2010-09-06 2012-03-22 Jtekt Corp Machine tool with tool radius adjusting device
JP2012115961A (en) * 2010-12-02 2012-06-21 Okuma Corp Workpiece machining device

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