DE4201715A1 - Precision boring tool with size adjustment - has boring bar held in sleeve which has bore eccentric to holder axis and permits size adjustment by rotation of bar in sleeve - Google Patents
Precision boring tool with size adjustment - has boring bar held in sleeve which has bore eccentric to holder axis and permits size adjustment by rotation of bar in sleeveInfo
- Publication number
- DE4201715A1 DE4201715A1 DE19924201715 DE4201715A DE4201715A1 DE 4201715 A1 DE4201715 A1 DE 4201715A1 DE 19924201715 DE19924201715 DE 19924201715 DE 4201715 A DE4201715 A DE 4201715A DE 4201715 A1 DE4201715 A1 DE 4201715A1
- Authority
- DE
- Germany
- Prior art keywords
- sleeve
- boring bar
- boring
- eccentric
- size adjustment
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/03—Boring heads
- B23B29/034—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings
- B23B29/03403—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable before starting manufacturing
- B23B29/03428—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable before starting manufacturing by means of an eccentric
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Vorrichtung zur Herstellung von Präzisionsbohrungen durch nachträg liches Ausdrehen zuvorgefertigter, zylindrischer Bohr löcher mittels spezieller, handelsüblicher Bohrstan gen, die in entsprechende Halterungen durchmesserver änderlich eingespannt sind. The invention relates to a device for Production of precision bores by retrofitting Turning out previously made cylindrical drill holes using a special, commercially available drill rig conditions that diameters in corresponding brackets are changeably clamped.
Bekannte Vorrichtungen dieser Art sind bislang entweder viel zu aufwendig und damit störanfällig ausgebildet oder aber sie bestehen aus einem sogenannten Set vieler Einzelbauteile, die im Werkstatteinsatz störend wirken und leicht verloren gehen können.Known devices of this type are so far either far too complex and therefore prone to failure or they consist of a so-called set of many Individual components that have a disruptive effect when used in the workshop and can easily get lost.
Außerdem sind diese bekannten Werkzeugsätze stets für größere Durchmesserbereiche vorgesehen, was wiederum zu hohen Unwuchten am Werkzeug und somit zwangsläufig zu ungenauen Arbeitsergebnissen führen kann.In addition, these known tool sets are always for larger diameter ranges are provided, which in turn too high imbalances on the tool and therefore inevitably can lead to inaccurate work results.
Die Aufgabe der vorliegenden Erfindung ist daher in einer wesentlichen Vereinfachung und Verringerung der notwendigen Bauteile solcher Präzisionsbohrvorrichtun gen zu sehen.The object of the present invention is therefore in a significant simplification and reduction of necessary components of such precision drilling devices to see.
Gelöst wird diese Aufgabe durch die im Patentanspruch 1 angegebenen baulichen Merkmale; weitere sinnvolle Aus gestaltungsmerkmale hierzu sind in den Unteransprüchen enthalten, aus der zugehörigen Zeichnung ersichtlich und anhand dieser im folgenden auch näher erläutert.This object is achieved by the in claim 1 specified structural features; further meaningful out Design features for this are in the subclaims included, can be seen from the accompanying drawing and also explained in more detail based on this.
Es zeigen:Show it:
Fig. 1 den Längsschnitt durch ein mög liches Ausführungsbeispiel der Erfindung und Fig. 1 shows the longitudinal section through a possible embodiment of the invention and Lich
Fig. 2 einen Querschnitt zu Fig. 1 ge mäß der dortigen Linie A-B. Fig. 2 shows a cross section to Fig. 1 ge according to the line AB there.
Aus Fig. 1 geht hervor, daß zur Lösung der gestellten Aufgabe in das zylindrische Aufnahmeteil 1a des Steil kegels 1 eine Hülse 2 mit zur Steilkegellängsachse "x" exzentrischer "e" Innenbohrung 2a ist und in die ser exzentrischen Innenbohrung 2a spielfrei, jedoch bewegbar eine weitere Hülse 4 sitzt, in deren zentri scher Innenbohrung 4a die jeweilige Bohrstange 5 über eine Klemmschraubenverbindung 6 eingespannt ist. Denk bar hierbei ist es aber auch, daß die Bohrstangen hülse 4 und die Bohrstange 5 als einstückiges Bauteil ausgebildet sind; die Klemmschraube ist dann über flüssig.From Fig. 1 it can be seen that to solve the task in the cylindrical receiving part 1 a of the steep cone 1, a sleeve 2 with the steep taper axis "x" eccentric "e" inner bore 2 a and in the water eccentric inner bore 2 a free of play, however, a further sleeve 4 is movably seated, in the central inner bore 4 a of which the respective boring bar 5 is clamped via a clamping screw connection 6 . Think bar here, but it is also that the drill rod sleeve 4 and the drill rod 5 are formed as a one-piece component; the clamping screw is then superfluous.
Der gleiche erfinderische Grundgedanke ist zudem auch erfüllt, wenn alternativ zu der zylindrischen Aus führung das Aufnahmeteil 1a des Steilkegels 1 sowie der Hülse 2 samt exzentrischer Bohrung 2a und die da rin sitzende Bohrstangenhülse 4 konisch ausgebildet sind und als selbsthemmende Kegel ineinandersitzen; diese vereinfachte und somit billigere Ausführung ist praktisch gleich wirkungsvoll, wie die in Fig. 1 als Ausführungsbeispiel dargestellte, bei der in speziel ler baulicher Ausgestaltung zudem noch vorgesehen ist, daß die beiden Hülsen 2 und 4 mit aneinander anliegen den Anschlag- bzw. Anlagenbunden 2b bzw. 4b versehen sind, die zugleich Einstellmarkierungen 7 für den ge wünschten Bohrlochdurchmesser auf ihrer Oberfläche aufweisen. Durch die zusätzliche Abflachung 2c der Hülse 2 im Bereich der Klemmschrauben 3 des Aufnahme teils 1a des Steilkegels 1 und die damit verbundene Verringerung "i" der Wandstärke "s" der Hülse 2 im Bereich der Abflachung, reicht der Druck der Klemm schrauben 3 völlig aus, um auch die Bohrstangenhülse 4 in der exzentrischen Bohrung 2a festzuklemmen.The same inventive concept is also met if, as an alternative to the cylindrical guide from the receiving part 1 a of the steep taper 1 and the sleeve 2 together with the eccentric bore 2 a and the boring rod sleeve 4 sitting there are conical and are interlocked as a self-locking cone; this simplified and thus cheaper design is practically effective, like the one shown as an embodiment in Fig. 1, tends to be provided at the in specially ler structural configuration is that the two sleeves 2 and 4 abut with each other the stop or conditioning coils 2 b and 4 b are provided, which also have setting marks 7 for the desired borehole diameter on their surface. The additional flattening 2 of the sleeve 2 c in the region of the clamping screws 3 of the receiving part 1 a of steep taper 1 and the associated reduction "i" of the wall thickness "s" of the sleeve 2 in the region of the flattening is sufficient, the pressure of the clamping screw 3 completely out to also clamp the boring bar sleeve 4 in the eccentric bore 2 a.
Aus der Schnittdarstellung nach Fig. 2 ist letztlich noch zu ersehen, daß der große Vorteil der erfindungs gemäßen Lösung vor allem darin liegt, daß durch das Verdrehen der Hülsen ineinander bzw. um die eigene Achse für einen Durchmesserverstellbereich von z. B. 1 mm nur eine Exzentrizität e=0,25 mm erforderlich ist und nicht, wie bei den bekannten Seitenverstel lungen, 0,5 mm Verstellweite aus der Mitte heraus; die Unwucht bei hohen Drehzahlen ist somit erheblich geringer.From the sectional view of FIG. 2 it can ultimately be seen that the great advantage of the solution according to the Invention lies primarily in the fact that by rotating the sleeves into one another or about its own axis for a diameter adjustment range of z. B. 1 mm only an eccentricity e = 0.25 mm is required and not, as in the known Seitenverstel settings, 0.5 mm adjustment from the center; the unbalance at high speeds is therefore considerably lower.
BezugsziffernverzeichnisList of reference numbers
1 Steilkegel
1a Aufnahmeteil
1b Stirnseite
2 Hülse
2a exzentrische Bohrung
2b Anschlagbund
2b′ Stirnseite
2c Abflachung
3 Klemmschraube
3a Gewindeloch
4 Bohrstangenhülse
4a zentrische Bohrung
4b Anlagebund
4c Hals
5 Bohrstange
5a Schneidplatte
6 Klemmschraube
6a Gewindeloch
7 Einstellmarkierungen
e Exzentrizität
s Wandstärke der Hülse 2
s₁ Wandstärke der Abflachung 2c
x Steilkegellängsachse 1 steep cone
1 a receiving part
1 b front
2 sleeve
2 a eccentric hole
2 b stop collar
2 b ′ end face
2 c flattening
3 clamping screw
3 a threaded hole
4 boring bar sleeve
4 a centric hole
4 b Investment association
4 c neck
5 boring bar
5 a insert
6 clamping screw
6 a threaded hole
7 setting marks
e eccentricity
s wall thickness of sleeve 2
s₁ wall thickness of the flat 2 c
x steep taper longitudinal axis
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19924201715 DE4201715A1 (en) | 1992-01-23 | 1992-01-23 | Precision boring tool with size adjustment - has boring bar held in sleeve which has bore eccentric to holder axis and permits size adjustment by rotation of bar in sleeve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19924201715 DE4201715A1 (en) | 1992-01-23 | 1992-01-23 | Precision boring tool with size adjustment - has boring bar held in sleeve which has bore eccentric to holder axis and permits size adjustment by rotation of bar in sleeve |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4201715A1 true DE4201715A1 (en) | 1993-07-29 |
Family
ID=6450067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19924201715 Withdrawn DE4201715A1 (en) | 1992-01-23 | 1992-01-23 | Precision boring tool with size adjustment - has boring bar held in sleeve which has bore eccentric to holder axis and permits size adjustment by rotation of bar in sleeve |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4201715A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1067310C (en) * | 1995-03-22 | 2001-06-20 | 丰和工业株式会社 | correcting device for cutter position |
CN102896340A (en) * | 2012-10-09 | 2013-01-30 | 中联重科物料输送设备有限公司 | Equipment and cutter for machining inner seam allowance of part |
CN105478851A (en) * | 2014-10-13 | 2016-04-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Tool special for deep hole machining and machining method for deep hole |
CN108941700A (en) * | 2018-07-31 | 2018-12-07 | 山西豪钢锻造股份有限公司 | For penetrating through the internal diameter eccentricity fine adjustment formula cutter of axis drilling |
CN109176101A (en) * | 2018-11-15 | 2019-01-11 | 成都科力夫科技有限公司 | A kind of piston ring finishing of internal diameter fixture |
CN117733201A (en) * | 2023-12-05 | 2024-03-22 | 无锡市悦斯顿冶金设备有限公司 | Special processing boring machine for taper holes of eccentric sleeves of hot rolling mills |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1395859A (en) * | 1921-11-01 | morin | ||
DE669105C (en) * | 1936-11-29 | 1938-12-16 | Aeg | Tool infeed during fine boring mettels eccentric arrangement of the tool |
DE2262850A1 (en) * | 1972-12-22 | 1974-06-27 | Hinrichs Gmbh | FINE BORING AND BORING TOOL FOR MACHINE TOOLS |
SU986622A1 (en) * | 1980-12-24 | 1983-01-07 | Дальневосточный Ордена Трудового Красного Знамени Политехнический Институт Им.В.В.Куйбышева | Boring bar |
DE3226244A1 (en) * | 1982-07-14 | 1984-01-26 | Friedrich Deckel AG, 8000 München | METHOD AND DEVICE FOR COMPENSATING TOOL WEAR FOR A BORING BAR |
DE3720630A1 (en) * | 1987-06-23 | 1989-01-05 | Walter Bauer | TOOL FOR CIRCULAR MACHINING OF WORKPIECES, ESPECIALLY FOR DRILLING |
-
1992
- 1992-01-23 DE DE19924201715 patent/DE4201715A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1395859A (en) * | 1921-11-01 | morin | ||
DE669105C (en) * | 1936-11-29 | 1938-12-16 | Aeg | Tool infeed during fine boring mettels eccentric arrangement of the tool |
DE2262850A1 (en) * | 1972-12-22 | 1974-06-27 | Hinrichs Gmbh | FINE BORING AND BORING TOOL FOR MACHINE TOOLS |
SU986622A1 (en) * | 1980-12-24 | 1983-01-07 | Дальневосточный Ордена Трудового Красного Знамени Политехнический Институт Им.В.В.Куйбышева | Boring bar |
DE3226244A1 (en) * | 1982-07-14 | 1984-01-26 | Friedrich Deckel AG, 8000 München | METHOD AND DEVICE FOR COMPENSATING TOOL WEAR FOR A BORING BAR |
DE3720630A1 (en) * | 1987-06-23 | 1989-01-05 | Walter Bauer | TOOL FOR CIRCULAR MACHINING OF WORKPIECES, ESPECIALLY FOR DRILLING |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1067310C (en) * | 1995-03-22 | 2001-06-20 | 丰和工业株式会社 | correcting device for cutter position |
CN102896340A (en) * | 2012-10-09 | 2013-01-30 | 中联重科物料输送设备有限公司 | Equipment and cutter for machining inner seam allowance of part |
CN105478851A (en) * | 2014-10-13 | 2016-04-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Tool special for deep hole machining and machining method for deep hole |
CN108941700A (en) * | 2018-07-31 | 2018-12-07 | 山西豪钢锻造股份有限公司 | For penetrating through the internal diameter eccentricity fine adjustment formula cutter of axis drilling |
CN109176101A (en) * | 2018-11-15 | 2019-01-11 | 成都科力夫科技有限公司 | A kind of piston ring finishing of internal diameter fixture |
CN117733201A (en) * | 2023-12-05 | 2024-03-22 | 无锡市悦斯顿冶金设备有限公司 | Special processing boring machine for taper holes of eccentric sleeves of hot rolling mills |
CN117733201B (en) * | 2023-12-05 | 2024-05-28 | 无锡市悦斯顿冶金设备有限公司 | Special processing boring machine for taper holes of eccentric sleeves of hot rolling mills |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
8130 | Withdrawal |