DE212950C - - Google Patents
Info
- 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
Links
- 238000000227 grinding Methods 0.000 claims description 17
- 238000003801 milling Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 1
- 230000000875 corresponding Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
- B23C3/06—Milling crankshafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2220/00—Details of milling processes
- B23C2220/08—Milling with the axis of the tool perpendicular to the workpiece axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2220/00—Details of milling processes
- B23C2220/64—Using 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)
Publications (1)
Publication Number | Publication Date |
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DE212950C true DE212950C (en) |
Family
ID=474647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DENDAT212950D Active DE212950C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE212950C (en) |
Cited By (7)
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 |
-
0
- DE DENDAT212950D patent/DE212950C/de active Active
Cited By (12)
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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