DE102006016597B3 - Method for deep drilling of crankshafts, involves hardening of crankshaft and hardened outer zone is separated and introduced in area of entry and exit of drillings adjacent to drillings - Google Patents
Method for deep drilling of crankshafts, involves hardening of crankshaft and hardened outer zone is separated and introduced in area of entry and exit of drillings adjacent to drillings Download PDFInfo
- Publication number
- DE102006016597B3 DE102006016597B3 DE200610016597 DE102006016597A DE102006016597B3 DE 102006016597 B3 DE102006016597 B3 DE 102006016597B3 DE 200610016597 DE200610016597 DE 200610016597 DE 102006016597 A DE102006016597 A DE 102006016597A DE 102006016597 B3 DE102006016597 B3 DE 102006016597B3
- Authority
- DE
- Germany
- Prior art keywords
- drillings
- crankshaft
- recess
- crankshafts
- exit
- 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 - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
- F16C3/14—Features relating to lubrication
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B35/00—Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B41/02—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for boring deep holes; Trepanning, e.g. of gun or rifle barrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2215/00—Details of workpieces
- B23B2215/20—Crankshafts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ocean & Marine Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Drilling And Boring (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Tiefbohren Kurbelwellen, wobei Bohrungen an unterschiedlichen Stellen und in unterschiedlichen Winkeln zur Werkstücklängsachse angebracht werden.The The invention relates to a method for deep drilling crankshafts, wherein Holes in different places and in different Angles to the workpiece longitudinal axis be attached.
Bei
der Herstellung von Kurbelwellen ist es bekannt, die Ölbohrungen
vor der Härtebehandlung anzubringen.
Die
Nach dem Härten werden die Ölbohrungen von Zunder befreit. Des weiteren können die Übergänge von den Ölbohrungen zu den Lagersitzen durchhärten und später während des Einsatzes im Motor ausbrechen. Außerdem verändert sich die Länge der Kurbelwelle beim nachfolgenden Rollieren der Hinterstiche. Dadurch verschieben sich die Positionen für Ein- und Austritt der Ölbohrungen erheblich. Trotz dieser negativen Einflüsse sind die engen Fertigungstoleranzen einzuhalten. Daher sind erhöhte Aufwendungen erforderlich, um diese Verschiebungen zu kompensieren.To the hardening are the oil wells of Tinder freed. Furthermore, you can the transitions of the oil wells Cure to the bearing seats and later while of the insert in the motor break out. In addition, the length of the changes Crankshaft during subsequent rolling of the undercuts. Thereby the positions for entry and exit of the oil wells change considerably. In spite of of these negative influences The tight manufacturing tolerances must be observed. Therefore, increased expenses required to compensate for these shifts.
Die
Die Erfindung befasst sich mit der Aufgabe, das Anbringen von Bohrungen in Kurbelwellen zu vereinfachen und gleichzeitig eine hohe Fertigungsqualität zu gewährleisten.The Invention deals with the task of attaching holes in crankshafts to simplify and at the same time to ensure a high production quality.
Diese Aufgabe wird gelöst durch ein Verfahren mit den Merkmalen des Anspruchs 1.These Task is solved by a method having the features of claim 1.
Ein vorteilhafter Aspekt der Erfindung besteht darin, bei der Bearbeitung von Kurbelwellen die Bohrungen nach dem Härten einzubringen. Dazu wird die gehärtete Randschicht im Bereich der Bohrungsein- und -austritte entfernt und anschließend erfolgt das Bohren. Besonders vorteilhaft wird beim Entfernen der gehärteten Randschicht das Werkstück mit einer Ausnehmung versehen, die sich zum Werkstückrand derart aufweitet, dass nach Anbringen der Bohrung diese in eine Fase einmündet. Bei einer vorteilhaften Ausführung des Verfahrens wird die Ausnehmung durch Zirkularfräsen erstellt, d.h. der Werkzeugdurchmesser ist kleiner als der Durchmesser der Ausnehmung. Dadurch werden die anfallenden Späne leichter aus der Ausnehmung heraustransportiert. Bei einer weiteren vorteilhaften Ausführung wird vor dem Durchbohren der Kurbelwelle eine Pilotbohrung angebracht.One Advantageous aspect of the invention is in the processing of crankshafts to introduce the holes after hardening. This will be the hardened Edge layer in the area of the bore entries and exits removed and subsequently the drilling is done. Particularly advantageous when removing the hardened Edge layer the workpiece provided with a recess which is the workpiece edge in such a way expands, that after attaching the hole this opens into a chamfer. At a advantageous embodiment of the method, the recess is created by circular milling, i.e. the tool diameter is smaller than the diameter of the Recess. As a result, the resulting chips are easier from the recess transported. In a further advantageous embodiment is before drilling through the crankshaft a pilot hole is attached.
Im folgenden wird die Erfindung an Hand eines Ausführungsbeispiels erläutert.in the The following will explain the invention with reference to an embodiment.
In
- 11
- Kurbelwellecrankshaft
- 2 2'2 2 '
- Hauptlagermain bearing
- 3 3'3 3 '
- Zapfenlagerchocks
- 4 4'4 4 '
- Bohrungdrilling
- 5 5'5 5 '
- Kurbelwangecrank web
- 6 6'6 6 '
- Hinterstichundercut
- 7 7'7 7 '
- Eintrittentry
- 8 8'8th 8th'
- Austrittexit
- 99
- Bezugsebenereference plane
- 1010
- Randschichtboundary layer
- 1111
- Ausnehmungrecess
- 1212
- Fasechamfer
- 1313
- WerkstücklängsachseWork longitudinal axis
- 1414
- Pilotbohrungpilot drilling
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610016597 DE102006016597B3 (en) | 2006-04-06 | 2006-04-06 | Method for deep drilling of crankshafts, involves hardening of crankshaft and hardened outer zone is separated and introduced in area of entry and exit of drillings adjacent to drillings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610016597 DE102006016597B3 (en) | 2006-04-06 | 2006-04-06 | Method for deep drilling of crankshafts, involves hardening of crankshaft and hardened outer zone is separated and introduced in area of entry and exit of drillings adjacent to drillings |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006016597B3 true DE102006016597B3 (en) | 2007-06-06 |
Family
ID=38047884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200610016597 Expired - Fee Related DE102006016597B3 (en) | 2006-04-06 | 2006-04-06 | Method for deep drilling of crankshafts, involves hardening of crankshaft and hardened outer zone is separated and introduced in area of entry and exit of drillings adjacent to drillings |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102006016597B3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102528112A (en) * | 2012-02-07 | 2012-07-04 | 济南重工股份有限公司 | Deep hole processing technology for non-revolution workpiece |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19938856A1 (en) * | 1999-08-17 | 2001-02-22 | Tiefbohrtechnik Gmbh Tbt | Deep drilling equipment |
DE102004006787A1 (en) * | 2004-02-12 | 2005-09-08 | Lehmann, Dieter, Dipl.-Ing. | Drill for deep, small-diameter lubricating oil-supply bores in crank shafts of piston machinery, has design enhancing relief, coolant supply and chip-breaking |
-
2006
- 2006-04-06 DE DE200610016597 patent/DE102006016597B3/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19938856A1 (en) * | 1999-08-17 | 2001-02-22 | Tiefbohrtechnik Gmbh Tbt | Deep drilling equipment |
DE102004006787A1 (en) * | 2004-02-12 | 2005-09-08 | Lehmann, Dieter, Dipl.-Ing. | Drill for deep, small-diameter lubricating oil-supply bores in crank shafts of piston machinery, has design enhancing relief, coolant supply and chip-breaking |
Non-Patent Citations (1)
Title |
---|
JP 04141522 A [abstract], In: Pat. Abstr. of Jp. [CD-ROM] * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102528112A (en) * | 2012-02-07 | 2012-07-04 | 济南重工股份有限公司 | Deep hole processing technology for non-revolution workpiece |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
8364 | No opposition during term of opposition | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |