WO1994025209A1 - Variable mounting of a boring bar on the work spindle of a fineboring machine - Google Patents

Variable mounting of a boring bar on the work spindle of a fineboring machine Download PDF

Info

Publication number
WO1994025209A1
WO1994025209A1 PCT/DE1994/000444 DE9400444W WO9425209A1 WO 1994025209 A1 WO1994025209 A1 WO 1994025209A1 DE 9400444 W DE9400444 W DE 9400444W WO 9425209 A1 WO9425209 A1 WO 9425209A1
Authority
WO
WIPO (PCT)
Prior art keywords
work spindle
boring bar
articulated frame
trapezium
axis
Prior art date
Application number
PCT/DE1994/000444
Other languages
German (de)
French (fr)
Inventor
Roland Bathen
Original Assignee
Mahle Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mahle Gmbh filed Critical Mahle Gmbh
Publication of WO1994025209A1 publication Critical patent/WO1994025209A1/en

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
    • B23B29/03432—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable during manufacturing
    • B23B29/03457—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable during manufacturing by pivoting the tool carriers or by elastic deformation
    • 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
    • B23B29/02—Boring bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/34—Relative movement obtained by use of deformable elements, e.g. piezoelectric, magnetostrictive, elastic or thermally-dilatable elements

Definitions

  • the invention relates to a deflectable mounting of a boring bar carrying a turning tool on the work spindle of a fine boring machine for producing non-circular bores.
  • the free end of the boring bar should also be mounted in the axis of the work spindle.
  • Such storage is generally known as tailstock mounting of the boring bar.
  • a basic solution to the above task complex is achieved by designing the storage device according to the characterizing features of claim 1.
  • the solution to the second part of the task according to the invention namely the mounting of the free end of the boring bar, is based on the kinematic properties of a trapezoidal articulated frame, according to which it is possible to pivot the boring bar attached to it so that it is free End in the axis of rotation of the work spindle at a fixed point can remain stored.
  • This property is guaranteed at least for small swiveling angles of the boring bar, which, according to the invention, is solely important.
  • a small swivel angle is understood to mean those angles which are generated by a displacement of the relevant hinge points of the hinge frame by less than approximately 1 mm.
  • FIG. 1 shows the principle of an articulated frame according to the invention which can be pivoted by a piezo motor as a boring bar bearing device
  • FIG. 2 shows a perspective view of an articulated frame on a work spindle with a boring bar attached
  • Fig. 3 is a view of a special design of an articulated frame
  • a boring bar 1 is articulated on the work spindle 3 of a fine boring machine via an articulated frame 2.
  • the boring bar 1 is supported at its free end in a tailstock 4 within the axis of rotation of the work spindle 3.
  • the articulated frame 2 can be pivoted relative to the work spindle 3 by means of a piezo motor 5.
  • the articulated frame 2 essentially consists of four frame parts which are pivotally connected to one another by four joints 6 in one plane.
  • the joints 6 are located on the corner points of a trapezoid.
  • the individual joint frame parts form the trapezoidal sides of the trapezoid determined by the joints 6.
  • the trapezoid base side 7 is firmly connected to the work spindle 3.
  • the boring bar 1 is firmly connected to the short side 8, which is parallel to the long trapezoidal base side.
  • the piezo motor 5 is supported at one end on a support 9 which is firmly connected to the trapezoid base side 7. At its other end, it is linked to one of the two short trapezoidal sides 10.
  • the piezo motor 5 causes the articulated frame 2 to pivot by expansion and contraction between the articulation points.
  • the trapezoidal sides 10 lie with the axis of rotation of the work spindle 3, this center point M not changing its radial and axial position relative to the work spindle 3, at least in the case of the slight pivoting of the articulated frame 2 which is of only interest according to the invention.
  • a tailstock mounting of the boring bar 1 is possible in this center M.
  • a rotary chisel 13 fastened next to the center point M on the boring bar 1 moves on a circular path K2 when the boring bar 1 is pivoted, which leads to the desired change in diameter to be carried out with the turning chisel during the fine machining of a bore leads ,
  • the articulated frame 2 is a one-piece part. This part is made from solid material, for example.
  • the material itself can be steel.
  • the shape of the joint frame is such that the individual side parts 7, 8 and 10 are each individually rigid, while at their mutual transitions in the sense of the joints 6 they are elastically deformable. This elastic deformability is achieved by constrictions 12 in the regions of the joint frame serving as joints 6.
  • the return spring 11 provided in the basic illustration according to FIG. 1 can be omitted since the frame itself is elastically resilient in the constricted areas.
  • a piezo motor 5 has the particular advantage that on the one hand the infeed movements can take place very quickly and on the other hand the infeed forces required to apply the cutting forces are also possible without problems.
  • an electrical actuator it is possible to control the infeed movements of the motor 5 according to an electronically stored program for a specific shape of the bore to be produced.

Abstract

Variable mounting of a boring bar (1), bearing a boring tool (13), on the work spindle (3) of a fineboring machine for producing non circular bores. In order to obtain extremely precise bore geometries, the free end of the boring bar (1) is additionally mounted in the axis of the work spindle (3). The invention deals with a mounting for a boring (1) bar generally known as a tailstock mounting. For that purpose, an articulated frame (2) with joints (6) located at the edges of a trapezium which allow the articulated frame (2) to swivel in that plane serves as a mounting arrangement. The base (7) of the trapezium is firmly secured to the work spindle (3) and its parallel opposite shorter side (8) is firmly linked to the boring bar (1) which is axially aligned with the work spindle axis. The articulated frame (2) may be slightly swivelled by a piezoelectric motor (5) secured to the base (7) of the trapezium by coupling to one of the sides (10) of the trapezium. In addition, the free end of the boring bar (1) is rotatably mounted in the axis of the work spindle (3) in a fixed counter-bearing (tailstock) (4) which lies in the area of the intersection of the extensions of both remaining trapezium sides (10) with the spindle axis.

Description

Auslenkbare Lagerung einer Bohrstange an der Arbeitsspindel einer Feinbohrmaschine Deflectable mounting of a boring bar on the work spindle of a fine boring machine
Die Erfindung betrifft eine auslenkbare Lagerung einer ei¬ nen Drehmeißel tragenden Bohrstange an der Arbeitsspindel einer Feinbohrmaschine zur Erzeugung unrunder Bohrungen.The invention relates to a deflectable mounting of a boring bar carrying a turning tool on the work spindle of a fine boring machine for producing non-circular bores.
Durch eine solche Lagerung sollen beliebig unrunde Bohrun¬ gen herstellbar sein. Zu diesem Zweck muß die Auslenkung im Arbeitsbetrieb der Bohrstange reaktionsschnell sein.Such storage should make it possible to produce any out-of-round bores. For this purpose, the deflection during the operation of the boring bar must be responsive.
Zur Erzielung äußerst genauer Bohrungsgeometrien soll das freie Ende der Bohrstange in der Achse der Arbeitsspindel zusätzlich gelagert sein. Eine solche Lagerung ist allge¬ mein als Reitstocklagerung der Bohrstange bekannt.In order to achieve extremely precise bore geometries, the free end of the boring bar should also be mounted in the axis of the work spindle. Such storage is generally known as tailstock mounting of the boring bar.
Eine grundsätzliche Lösung des vorstehenden Aufgabenkomple¬ xes wird durch eine Ausbildung der Lagereinrichtung nach den kennzeichnenden Merkmalen des Anspruchs 1 erreicht.A basic solution to the above task complex is achieved by designing the storage device according to the characterizing features of claim 1.
Zweckmäßige Ausgestaltungen sind Gegenstand der Unteran¬ sprüche.Appropriate configurations are the subject of the subclaims.
Die Lösung des zweiten Teils der erfindungsgemäßen Aufgabe, nämlich die Lagerung des freien Endes der Bohrstange, be¬ ruht auf den kinematischen Eigenschaften eines trapezförmi¬ gen Gelenkrahmens, nach denen es möglich ist, die daran be¬ festigte Bohrstange so zu verschwenken, daß ihr freies Ende in der Rotationsachse der Arbeitsspindel in einem Fixpunkt gelagert bleiben kann. Diese Eigenschaft ist zumindest für geringe Schwenkwinkel der Bohrstange, auf welche es erfin¬ dungsgemäß allein ankommt, garantiert. Unter geringem Schwenkwinkel werden dabei solche Winkel verstanden, die durch eine Verschiebung der betreffenden Gelenkpunkte des Gelenkrahmens um weniger als etwa 1 mm erzeugt werden.The solution to the second part of the task according to the invention, namely the mounting of the free end of the boring bar, is based on the kinematic properties of a trapezoidal articulated frame, according to which it is possible to pivot the boring bar attached to it so that it is free End in the axis of rotation of the work spindle at a fixed point can remain stored. This property is guaranteed at least for small swiveling angles of the boring bar, which, according to the invention, is solely important. A small swivel angle is understood to mean those angles which are generated by a displacement of the relevant hinge points of the hinge frame by less than approximately 1 mm.
In der Zeichnung sind eine Prinzipdarstellung sowie ein Ausführungsbeispiel der Erfindung dargestellt:The drawing shows a basic illustration and an exemplary embodiment of the invention:
Es zeigen:Show it:
Fig. 1 das Prinzip eines erfindungsgemäßen, durch einen Piezo-Motor verschwenkbaren Gelenk¬ rahmens als Bohrstangen-Lagereinrichtung,1 shows the principle of an articulated frame according to the invention which can be pivoted by a piezo motor as a boring bar bearing device,
Fig. 2 eine perspektivische Ansicht eines Gelenk¬ rahmens an einer Arbeitsspindel mit aufge¬ setzter Bohrstange,2 shows a perspective view of an articulated frame on a work spindle with a boring bar attached,
Fig. 3 eine Ansicht einer speziellen Ausbildung eines GelenkrahmensFig. 3 is a view of a special design of an articulated frame
Eine Bohrstange 1 ist über einen Gelenkrahmen 2 gelenkig an der Arbeitsspindel 3 einer Feinbohrmaschine gelagert.A boring bar 1 is articulated on the work spindle 3 of a fine boring machine via an articulated frame 2.
Die Bohrstange 1 ist an ihrem freien Ende in einem Reit¬ stock 4 innerhalb der Rotationsachse der Arbeitsspindel 3 gegengelagert.The boring bar 1 is supported at its free end in a tailstock 4 within the axis of rotation of the work spindle 3.
Der Gelenkrahmen 2 ist durch einen Piezo-Motor 5 gegenüber der Arbeitsspindel 3 verschwenkbar. Der Gelenkrahmen 2 besteht im wesentlichen aus vier Rahmen¬ teilen, die durch vier Gelenke 6 in einer Ebene verschwenk¬ bar miteinander verbunden sind. Die Gelenke 6 befinden sich dabei auf den Eckpunkten eines Trapezes. Die einzelnen Ge¬ lenkrahmenteile bilden dabei die Trapezseiten des durch die Gelenke 6 bestimmten Trapezes. Die Trapezbasisseite 7 ist fest mit der Arbeitsspindel 3 verbunden. Die Bohrstange 1 ist fest mit der kurzen, der langen Trapezbasisseite paral¬ lel gegenüberliegenden Seite 8 verbunden.The articulated frame 2 can be pivoted relative to the work spindle 3 by means of a piezo motor 5. The articulated frame 2 essentially consists of four frame parts which are pivotally connected to one another by four joints 6 in one plane. The joints 6 are located on the corner points of a trapezoid. The individual joint frame parts form the trapezoidal sides of the trapezoid determined by the joints 6. The trapezoid base side 7 is firmly connected to the work spindle 3. The boring bar 1 is firmly connected to the short side 8, which is parallel to the long trapezoidal base side.
Der Piezo-Motor 5 stützt sich an seinem einen Ende an einer fest mit der Trapezbasisseite 7 verbundenen Stütze 9 ab. An seinem anderen Ende ist er an eine der beiden kurzen Tra¬ pezseiten 10 angelenkt. Durch Ausdehnung und Kontraktion zwischen den Anlenkpunkten bewirkt der Piezo-Motor 5 eine Verschwenkung des Gelenkrahmens 2.The piezo motor 5 is supported at one end on a support 9 which is firmly connected to the trapezoid base side 7. At its other end, it is linked to one of the two short trapezoidal sides 10. The piezo motor 5 causes the articulated frame 2 to pivot by expansion and contraction between the articulation points.
Bei dem Verschwenken des Gelenkrahmens 2 bewegen sich die Gelenke 6, die an der Trapezseite 8 liegen, mit der die Bohrstange 1 fest verbunden ist, zumindest bei einer nur geringfügigen Verschwenkung des Rahmens auf einem Kreis Kl, dessen Mittelpunkt M durch den Schnittpunkt der Verlänge¬ rungen der Trapezseiten 10 mit der Rotationsachse der Ar¬ beitsspindel 3 liegt, wobei dieser Mittelpunkt M seine ra¬ diale und axiale Lage zu der Arbeitsspindel 3, zumindest bei den erfindungsgemäß allein interessierenden geringen Verschwenkungen des Gelenkrahmens 2, nicht verändert. Da¬ durch ist in diesem Mittelpunkt M eine Reitstocklagerung der Bohrstange 1 möglich. Ein neben dem Mittelpunkt M auf der Bohrstange 1 befestigter Drehmeißel 13 bewegt sich bei der Schwenkung der Bohrstange 1 auf einer Kreisbahn K2, was zu der gewünschten mit dem Drehmeißel vorzunehmenden Durch¬ messer-Änderung bei der Feinbearbeitung einer Bohrung führt ,When pivoting the articulated frame 2, the joints 6, which are located on the trapezoidal side 8 with which the boring bar 1 is firmly connected, move at least with only a slight pivoting of the frame on a circle Kl, the center M of which through the intersection of the extensions The trapezoidal sides 10 lie with the axis of rotation of the work spindle 3, this center point M not changing its radial and axial position relative to the work spindle 3, at least in the case of the slight pivoting of the articulated frame 2 which is of only interest according to the invention. As a result, a tailstock mounting of the boring bar 1 is possible in this center M. A rotary chisel 13 fastened next to the center point M on the boring bar 1 moves on a circular path K2 when the boring bar 1 is pivoted, which leads to the desired change in diameter to be carried out with the turning chisel during the fine machining of a bore leads ,
Wenn der Piezo-Motor 5 nur eine Zustellbewegung in einer Richtung ausführt, erfolgt die Rückführung in eine unver- schwenkte Ausgangslage der Bohrstange 1 über eine Rückhol¬ feder 11. Bei der Ausführung nach Fig. 3 ist der Gelenkrah¬ men 2 ein einstückiges Teil. Dieses Teil ist beispielsweise aus Vollmaterial herausgearbeitet. Das Material selbst kann Stahl sein. Die Formgebung des Gelenkrahmens ist derart, daß die einzelnen Seitenteile 7,8 und 10 jeweils für sich biegesteif sind, während sie an ihren gegenseitigen Über¬ gängen im Sinne der Gelenke 6 elastisch verformbar sind. Diese elastische Verformbarkeit wird durch Einschnürungen 12 in den als Gelenke 6 dienenden Bereichen des Gelenkrah¬ mens erreicht. Bei dieser Ausführung kann die in der Prin¬ zipdarstellung nach Fig. 1 vorgesehene Rückholfeder 11 ent¬ fallen, da der Rahmen in den Einschnürbereichen selbst ela¬ stisch federnd ist.If the piezo motor 5 only executes an infeed movement in one direction, the return to an unswung starting position of the boring bar 1 takes place via a return spring 11. In the embodiment according to FIG. 3, the articulated frame 2 is a one-piece part. This part is made from solid material, for example. The material itself can be steel. The shape of the joint frame is such that the individual side parts 7, 8 and 10 are each individually rigid, while at their mutual transitions in the sense of the joints 6 they are elastically deformable. This elastic deformability is achieved by constrictions 12 in the regions of the joint frame serving as joints 6. In this embodiment, the return spring 11 provided in the basic illustration according to FIG. 1 can be omitted since the frame itself is elastically resilient in the constricted areas.
Der Einsatz eines Piezo-Motors 5 hat den besonderen Vor¬ teil, daß die Zustellbewegungen einerseits sehr schnell er¬ folgen können und daß andererseits auch die zum Aufbringen der Schneidkräfte erforderlichen Zustellkräfte problemlos möglich sind. Durch die Verwendung eines elektrischen Stellgliedes ist eine Steuerung der Zustellbewegungen des Motors 5 nach einem elektronisch gespeicherten Programm für einen bestimmten Formverlauf der zu erzeugenden Bohrung möglich. The use of a piezo motor 5 has the particular advantage that on the one hand the infeed movements can take place very quickly and on the other hand the infeed forces required to apply the cutting forces are also possible without problems. By using an electrical actuator, it is possible to control the infeed movements of the motor 5 according to an electronically stored program for a specific shape of the bore to be produced.

Claims

Patentansprüche Claims
1. Auslenkbare Lagerung einer einen Drehmeißel tragenden Bohrstange an der Arbeitsspindel einer Feinbohrmaschine zur Erzeugung unrunder Bohrungen, gekennzeichnet durch einen Gelenkrahmen (2) als Lagereinrichtung mit in den Ecken eines Trapezes liegenden Gelenken (6), die ein Verschwenken des Gelenkrahmens (2) in dessen Ebene er¬ lauben, dessen Trapezbasisseite (7) fest mit der Ar¬ beitsspindel (3) und dessen parallel gegenüber liegende kürzere Trapezseite (8) fest mit der axial mit der Ar¬ beitsspindelachse fluchtenden Bohrstange (1) verbunden ist, wobei dieser Gelenkrahmen (2) durch einen an dem Trapezbasisseitenteil (7) befestigten Piezo-Motor (5) durch Anlenkung an eines der Trapezseitenteile (10) ge¬ ringfügig verschwenkbar ist, wobei das freie Ende der Bohrstange (1) in der Achse der Arbeitsspindel (3) in einem festen Gegenlager (Reitstock 4) drehbar gelagert ist, das im Bereich des Schnittpunktes der Verlängerun¬ gen der beiden übrigen Trapezseitenteile (10) mit der Spindelachse liegt.1. Deflectable mounting of a boring bar carrying a turning tool on the work spindle of a fine boring machine for producing non-circular bores, characterized by an articulated frame (2) as a bearing device with joints (6) lying in the corners of a trapezoid, which pivot the articulated frame (2) in it Allow plane, the trapezoid base side (7) of which is firmly connected to the work spindle (3) and the parallel, shorter trapezoid side (8) of which is firmly connected to the boring bar (1) axially aligned with the work spindle axis, this articulated frame ( 2) can be pivoted slightly by a piezo motor (5) attached to the trapezoidal base side part (7) by articulation on one of the trapezoidal side parts (10), the free end of the boring bar (1) in the axis of the work spindle (3) in a fixed counter bearing (tailstock 4) is rotatably mounted in the area of the intersection of the extensions of the two other trapezoidal side parts (10) with the sp indelax lies.
2. Auslenkbare Lagerung nach Anspruch 1, dadurch gekennzeichnet, daß der Gelenkrahmen (2) einstückig mit in den Ecken als elastisch rückfedernde Gelenke (6) wirkenden Ein¬ schnürungen (12) ausgebildet ist. 2. Deflectable mounting according to claim 1, characterized in that the articulated frame (2) is integrally formed with constrictions (12) acting in the corners as elastically resilient joints (6).
PCT/DE1994/000444 1993-04-21 1994-04-19 Variable mounting of a boring bar on the work spindle of a fineboring machine WO1994025209A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19934312937 DE4312937A1 (en) 1993-04-21 1993-04-21 Deflectable mounting of a boring bar on the work spindle of a fine boring machine
DEP4312937.4 1993-04-21

Publications (1)

Publication Number Publication Date
WO1994025209A1 true WO1994025209A1 (en) 1994-11-10

Family

ID=6485951

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1994/000444 WO1994025209A1 (en) 1993-04-21 1994-04-19 Variable mounting of a boring bar on the work spindle of a fineboring machine

Country Status (2)

Country Link
DE (1) DE4312937A1 (en)
WO (1) WO1994025209A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8904912B2 (en) 2012-08-16 2014-12-09 Omax Corporation Control valves for waterjet systems and related devices, systems, and methods
US9095955B2 (en) 2012-08-16 2015-08-04 Omax Corporation Control valves for waterjet systems and related devices, systems and methods
US11554461B1 (en) 2018-02-13 2023-01-17 Omax Corporation Articulating apparatus of a waterjet system and related technology
US11904494B2 (en) 2020-03-30 2024-02-20 Hypertherm, Inc. Cylinder for a liquid jet pump with multi-functional interfacing longitudinal ends

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4442218A1 (en) * 1994-11-26 1996-05-30 Mahle Gmbh Fine boring machine for creating out-of-round bores
DE19710601C2 (en) * 1997-03-14 1999-05-20 Univ Magdeburg Tech Motion generator
EP0999004B1 (en) * 1998-11-02 2006-07-12 Index-Werke Gmbh & Co. Kg Hahn & Tessky Chuck for a machine tool
ATE248679T1 (en) * 1998-11-02 2003-09-15 Index Werke Kg Hahn & Tessky CHUCK FOR A MACHINE TOOL
AT502843B1 (en) * 2004-02-02 2009-08-15 Schoeller Bleckmann Oilfield T DRILL AND DRILLING METHOD
DE102005020501B4 (en) * 2004-04-30 2014-01-16 Ks Kolbenschmidt Gmbh Method for introducing a non-round pin bore in a piston of an internal combustion engine
DE102008063945B4 (en) * 2008-12-19 2015-06-18 Ks Kolbenschmidt Gmbh Shaped bore profiles for a pin bearing
DE102013218888A1 (en) 2013-09-20 2015-04-09 Mahle International Gmbh tool spindle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2443409A1 (en) * 1978-12-07 1980-07-04 Tetra Pak Int DEVICE FOR CUTTING THE EDGE OF A STRIP OF MOVING MATERIAL
JPS6052230A (en) * 1983-09-02 1985-03-25 Omron Tateisi Electronics Co Minutely moving stage mechanism
EP0264147A2 (en) * 1986-09-09 1988-04-20 Hitachi Construction Machinery Co., Ltd. Fine positioning device and displacement controller therefor
GB2220155A (en) * 1988-07-04 1990-01-04 Samson Ag Boring device
WO1990002010A1 (en) * 1988-08-25 1990-03-08 Mahle Gmbh Fineboring machine and process for producing bores with any polar and/or axial generating line

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1127429A (en) * 1967-02-28 1968-09-18 Sp Kb Skbars Spindle head of a machine tool
DE3332243A1 (en) * 1983-09-07 1985-03-21 J. Kühn GmbH & Co Präzisionswerkzeug KG, 4270 Dorsten Rotatable machining device, in particular a boring head or the like
DE3446275C1 (en) * 1984-12-19 1986-07-24 Samson Ag, 6000 Frankfurt Rotating drill head with an infeed device arranged between a connecting shank and a tool carrier
DE3726276A1 (en) * 1987-08-07 1989-02-23 Samson Ag DEVICE FOR ADJUSTING THE TOOL BLADE OF A ROTATING RADIAL ADJUSTMENT HEAD
DE3926026A1 (en) * 1989-08-07 1991-02-14 Kuehn Praezisionswerkzeug Automatically balanced fine boring tool - has balance weight constrained to move in opposite sense to radial adjustment of boring tool
DE4029796A1 (en) * 1989-09-27 1991-04-04 Volkswagen Ag Drill rod with adjustable inserts - has cylindrical base body with drive stud and adjuster with rotary and slidable insert support

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2443409A1 (en) * 1978-12-07 1980-07-04 Tetra Pak Int DEVICE FOR CUTTING THE EDGE OF A STRIP OF MOVING MATERIAL
JPS6052230A (en) * 1983-09-02 1985-03-25 Omron Tateisi Electronics Co Minutely moving stage mechanism
EP0264147A2 (en) * 1986-09-09 1988-04-20 Hitachi Construction Machinery Co., Ltd. Fine positioning device and displacement controller therefor
GB2220155A (en) * 1988-07-04 1990-01-04 Samson Ag Boring device
WO1990002010A1 (en) * 1988-08-25 1990-03-08 Mahle Gmbh Fineboring machine and process for producing bores with any polar and/or axial generating line

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 9, no. 183 (M - 400)<1906> 30 July 1985 (1985-07-30) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8904912B2 (en) 2012-08-16 2014-12-09 Omax Corporation Control valves for waterjet systems and related devices, systems, and methods
US9095955B2 (en) 2012-08-16 2015-08-04 Omax Corporation Control valves for waterjet systems and related devices, systems and methods
US9610674B2 (en) 2012-08-16 2017-04-04 Omax Corporation Control valves for waterjet systems and related devices, systems, and methods
US10010999B2 (en) 2012-08-16 2018-07-03 Omax Corporation Control valves for waterjet systems and related devices, systems, and methods
US10864613B2 (en) 2012-08-16 2020-12-15 Omax Corporation Control valves for waterjet systems and related devices, systems, and methods
US11554461B1 (en) 2018-02-13 2023-01-17 Omax Corporation Articulating apparatus of a waterjet system and related technology
US11904494B2 (en) 2020-03-30 2024-02-20 Hypertherm, Inc. Cylinder for a liquid jet pump with multi-functional interfacing longitudinal ends

Also Published As

Publication number Publication date
DE4312937A1 (en) 1994-10-27

Similar Documents

Publication Publication Date Title
EP1346161A1 (en) Hinge device, especially for adjusting the rear view mirrors of motor vehicles
WO1994025209A1 (en) Variable mounting of a boring bar on the work spindle of a fineboring machine
DE3642421A1 (en) CONTROL ARM SUSPENSION FOR A MOTOR VEHICLE
DE10158022A1 (en) Ball joint with an angular movement restriction system
EP2995412B1 (en) Friction stir welding tool
EP1467910B1 (en) Joint for connecting a longitudinal side to an upper side of components and flexible strip for use in such a joint
EP2619393B1 (en) Sliding door drive
EP0075259A1 (en) Device for the regulation of a hinged element on a motor vehicle
EP0289460B1 (en) Ball-turning device for lathes
EP1214239A1 (en) Rocker arm mechanism for clamping an adjustable steering column
EP0115329B1 (en) Saw teeth grinding machine
EP1002674A2 (en) Joint between the ends of a leaf spring and axle supports of a commercial vehicle tandem axle unit
EP0169463B1 (en) Connection device for two members
DE19732874B4 (en) Power steering device
DE2719797C2 (en) Haymaking machine for optional turning / tedding or swathing with at least two rotating driven rake wheels
DE10157934A1 (en) Bushing to restrict movement of a ball joint
EP0315764B1 (en) Improved running gear with hydraulic suspension for tracked vehicles
WO2010052145A1 (en) Segment body and scraper for a conveyor belt scraper
EP0785880B1 (en) Motor vehicle mirror adjusting device
DE102005057230B3 (en) Movable stage has support frame with annular bearing for rotatable swivel mount supporting drive units each electric motor driven drive wheels set opposite one another with rotational axes perpendicular to tangent against circle of bearing
DE2230357A1 (en) DEVICE FOR GUIDING A TOOL FOR GRINDING AND POLISHING TORICAL LENSES
DE19614723C2 (en) Device for controlling the steering of vehicles
EP1308818B1 (en) Control assembly for actuation of control members through a common control lever
DE4400615C1 (en) Wheel set guiding system with virtual wheel-set pivot axis
EP1588980A2 (en) Handling apparatus with auxiliary equipment

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): BR JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase