DE3837172A1 - Tool arrangement for machining internal workpiece surfaces - Google Patents

Tool arrangement for machining internal workpiece surfaces

Info

Publication number
DE3837172A1
DE3837172A1 DE19883837172 DE3837172A DE3837172A1 DE 3837172 A1 DE3837172 A1 DE 3837172A1 DE 19883837172 DE19883837172 DE 19883837172 DE 3837172 A DE3837172 A DE 3837172A DE 3837172 A1 DE3837172 A1 DE 3837172A1
Authority
DE
Germany
Prior art keywords
spindle
tool
tool arrangement
slide
machining
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Withdrawn
Application number
DE19883837172
Other languages
German (de)
Inventor
Dieter Schroeder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Priority to DE19883837172 priority Critical patent/DE3837172A1/en
Publication of DE3837172A1 publication Critical patent/DE3837172A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
    • B23Q1/48—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs and rotating pairs
    • B23Q1/4804—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs and rotating pairs a single rotating pair followed perpendicularly by a single sliding pair
    • 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
    • B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
    • B23Q35/10—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only
    • B23Q35/101—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool
    • B23Q35/102—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool of one line
    • B23Q35/103—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool of one line which turns continuously

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Turning (AREA)

Abstract

To achieve shorter machining times in the machining of internal workpiece surfaces with a non-polygonal cross-section contour, a tool arrangement is proposed which contains a spindle (5) which is mounted in a tool carrier (4), is connected to a drive device (1) and transmits its rotary movement to a slide arrangement (7) whose slides (8 to 11) equipped with cutting tips (12, 13) are guided in a curved path, corresponding to the workpiece, inside the tool carrier (4). <IMAGE>

Description

Die Erfindung betrifft eine Werkzeuganordnung gemäß dem Oberbegriff des Patentanspruchs 1, wie sie beispielsweise für die Innenbearbeitung von Zylindern für Brennkraftmaschinen mit Kolben von ovalem Querschnitt erforderlich ist. Derartige, trotz ihres unrunden Querschnitts Kolbenbohrungen genannte Ausnehmungen wurden bisher im Zirkularfräsverfahren bearbeitet, wobei die verlangte Kontur mittels einer programmierten Steuereinrichtung erreicht wird. Dieses Arbeitsverfahren ist sehr zeitaufwendig und für eine Großserienfertigung entsprechend ungeeignet.The invention relates to a tool arrangement according to the Preamble of claim 1, as for example for the internal machining of cylinders for internal combustion engines with pistons of oval cross-section is required. Such, despite their non-circular cross-section called piston bores Recesses have so far been processed using the circular milling process, the required contour using a programmed Control device is reached. This working process is very time consuming and for mass production accordingly unsuitable.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Werk­ zeuganordnung zu schaffen, die wesentlich kürzere Bearbei­ tungszeiten zuläßt und darüber hinaus in bestehende Antriebs­ einrichtungen integriert werden kann.The invention is therefore based on the object of a work tool arrangement to create the much shorter machining times and also in existing drives facilities can be integrated.

Diese Aufgabe wird durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst.This task is characterized by the characteristics of claim 1 solved.

Zweckmäßige Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.Appropriate developments of the invention are the subject of subclaims.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung näher erläutert; darin zeigenAn embodiment of the invention is as follows explained in more detail with reference to the drawing; show in it

Fig. 1 einen Längsschnitt durch eine erfindungs­ gemäße Werkzeuganordnung, die an einer schematisch dargestellten Antriebseinrich­ tung lösbar befestigt ist, und Fig. 1 shows a longitudinal section through a tool assembly according to the Invention, which is detachably attached to a schematically illustrated Antriebseinrich device, and

Fig. 2 einen Querschnitt durch die Anordnung nach Fig. 1 längs der Schnittlinie II-II. Fig. 2 shows a cross section through the arrangement of FIG. 1 along the section line II-II.

Die an einer Antriebseinrichtung 1 mittels Schrauben 2, 3 lösbar befestigte Werkzeuganordnung umfaßt einen Werkzeug­ träger 4, in welchem eine Spindel 5 mit Hilfe von Kugel­ lagern 6 drehbar gelagert ist, die mit ihrem oberen Ende drehfest mit einem Teil der Antriebseinrichtung 1 verbunden ist. Im unteren Bereich des Werkzeugträgers 4 ist eine Schieberanordnung 7 vorgesehen, die im Ausführungsbeispiel vier Schieber 8 bis 11 umfaßt, welche im Abstand von 90° zueinander versetzt und sozusagen ineinander verschachtelt angeordnet sind. Sie sind drehfest mit der Spindel 5 verbun­ den und radial zu ihr verschiebbar. An den Schiebern sind Hartmetallschneidplatten auswechselbar befestigt, von denen in Fig. 1 die mit 12 und 13 bezeichneten sichtbar sind. Die Schieber haben in Nadellagern gelagerte Führungs­ zapfen 14 bis 17, die in einer ovalen Kurvenbahn 18, welche im unteren Bereich des Werkzeugträgers 4 in diesen eingear­ beitet ist, mit der Drehung der Spindel 5 zwangsgeführt werden, wie deutlicher aus Fig. 2 ersichtlich ist.The on a drive device 1 by means of screws 2 , 3 releasably attached tool assembly comprises a tool carrier 4 , in which a spindle 5 by means of ball bearings 6 is rotatably mounted, which is rotatably connected with its upper end to a part of the drive device 1 . In the lower area of the tool carrier 4 , a slide arrangement 7 is provided, which in the exemplary embodiment comprises four slides 8 to 11 , which are offset from one another at a distance of 90 ° and so to speak are nested within one another. They are non-rotatably connected to the spindle 5 and displaceable radially to it. Tungsten carbide inserts are exchangeably fastened to the slides, of which the ones labeled 12 and 13 are visible in FIG. 1. The sliders have guide pins 14 to 17 mounted in needle bearings, which are positively guided with the rotation of the spindle 5 in an oval curved path 18 , which is machined into the lower region of the tool carrier 4 , as can be seen more clearly from FIG. 2.

Claims (4)

1. Werkzeuganordnung zur spanabhebenden Bearbeitung von innenliegenden Werkstückoberflächen mit nichteckiger, insbesondere ovaler Querschnittskontur, gekennzeichnet durch eine mit einer Antriebseinrichtung (1) lösbar verbundene Spindel (5) und einen ebenfalls lösbar mit der Antriebseinrichtung (1) verbundenen, in einer Lagerung (6) die Spindel (5) aufnehmenden Werkzeugträger (4), dem eine drehfest mit der Spindel (5) verbundene Schieberanordnung (7) zugeordnet ist, deren mit Schneidplatten (12, 13) ausgestattete Schieber (8 bis 11) während der Drehung der Spindel (5) in einer dem Werkstück entsprechenden Kurvenbahn (18) innerhalb des Werkzeugträgers (4) geführt sind.1. Tool arrangement for machining internal workpiece surfaces with a non-angular, in particular oval cross-sectional contour, characterized by a spindle ( 5 ) detachably connected to a drive device ( 1 ) and a spindle ( 5 ) also detachably connected to the drive device ( 1 ) in a bearing ( 6 ) Spindle ( 5 ) receiving tool carrier ( 4 ), to which is assigned a slide arrangement ( 7 ) connected in a rotationally fixed manner to the spindle ( 5 ), the slide ( 8 to 11 ) equipped with cutting plates ( 12 , 13 ) during the rotation of the spindle ( 5 ) are guided in a cam track ( 18 ) corresponding to the workpiece within the tool carrier ( 4 ). 2. Werkzeuganordnung nach Anspruch 1, dadurch gekennzeichnet, daß die in der Kurvenbahn (18) befindlichen Führungsteile (14 bis 17) der Schieber (8 bis 11) mit Wälzlagern versehen sind.2. Tool arrangement according to claim 1, characterized in that the guide parts ( 14 to 17 ) of the slide ( 8 to 11 ) located in the cam track ( 18 ) are provided with roller bearings. 3. Werkzeuganordnung nach Anspruch 1 oder 2, dadurch gekenn­ zeichnet, daß für eine Grobbearbeitung zwei Schieberpaare (8, 9; 10, 11) vorgesehen sind, deren radial zur Spindel (5) ausgerichtete Bewegungsbahnen im rechten Winkel zueinander verlaufen.3. Tool arrangement according to claim 1 or 2, characterized in that for rough machining two pairs of slides ( 8 , 9 ; 10 , 11 ) are provided, the radially to the spindle ( 5 ) aligned trajectories are at right angles to each other. 4. Werkzeuganordnung nach Anspruch 1 oder 2, dadurch gekenn­ zeichnet, daß für eine Feinbearbeitung ein Schieberpaar vorgesehen ist, dessen Schieber um 180° zueinander versetzt angeordnet sind.4. Tool arrangement according to claim 1 or 2, characterized records that for a fine machining a pair of slides is provided, the slide by 180 ° to each other are staggered.
DE19883837172 1987-11-11 1988-11-02 Tool arrangement for machining internal workpiece surfaces Withdrawn DE3837172A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19883837172 DE3837172A1 (en) 1987-11-11 1988-11-02 Tool arrangement for machining internal workpiece surfaces

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3738266 1987-11-11
DE19883837172 DE3837172A1 (en) 1987-11-11 1988-11-02 Tool arrangement for machining internal workpiece surfaces

Publications (1)

Publication Number Publication Date
DE3837172A1 true DE3837172A1 (en) 1989-05-24

Family

ID=25861680

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883837172 Withdrawn DE3837172A1 (en) 1987-11-11 1988-11-02 Tool arrangement for machining internal workpiece surfaces

Country Status (1)

Country Link
DE (1) DE3837172A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5328306A (en) * 1992-04-02 1994-07-12 Grob-Werke Gmbh & Co. Kg Tool spindle, in particular boring spindle
DE4442218A1 (en) * 1994-11-26 1996-05-30 Mahle Gmbh Fine boring machine for creating out-of-round bores
CN104759920A (en) * 2015-04-23 2015-07-08 中国重汽集团大同齿轮有限公司 Fixture for drilling cross hole in tooth holder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5328306A (en) * 1992-04-02 1994-07-12 Grob-Werke Gmbh & Co. Kg Tool spindle, in particular boring spindle
DE4442218A1 (en) * 1994-11-26 1996-05-30 Mahle Gmbh Fine boring machine for creating out-of-round bores
US5782585A (en) * 1994-11-26 1998-07-21 Mahle Gmbh Precision drill for drilling noncircular bores
CN104759920A (en) * 2015-04-23 2015-07-08 中国重汽集团大同齿轮有限公司 Fixture for drilling cross hole in tooth holder

Similar Documents

Publication Publication Date Title
DE19830903B4 (en) Device and method for machining holes in a workpiece using such a device
DE7414120U (en) MACHINE TOOL FOR CHIPPING MACHINING OF CRANKSHAFT OR DGL.
DE2909227A1 (en) FITTING ON MACHINE TOOLS
DE2945770A1 (en) MACHINING CENTER
EP1068917B1 (en) Device and method for machining crankpins
EP0445404A2 (en) Device for making drilled holes with undercutting
DE3532282C2 (en)
EP0342315A2 (en) Machine for deburring work pieces
EP0802018B1 (en) Apparatus for grinding an end-face, specially a ring-face, on the edge of a workpiece bore
DE2636986C3 (en) Lathe
DD272618A1 (en) TURNING TOOLS FOR OUTDOOR PROCESSING OF ROTATIONAL SYMMETRIC WORKSTUECTS
DE3837172A1 (en) Tool arrangement for machining internal workpiece surfaces
DE2718731A1 (en) MACHINE TOOL, IN PARTICULAR GRINDING MACHINE
DE3524438C2 (en) Device for cylinder error compensation on a grinding machine
DE2551804C3 (en) Device for chamfering or sharpening of workpieces, each consisting of a cylindrical shaft with a head
WO1998040189A1 (en) Workpiece feed device for a machine tool
DE3523919A1 (en) Drilling-open tool with a drilling-open head for drilling open a bore
DE2322825C2 (en) Cutting tool for lathes or drilling machines - has single cutting plate fixed in cut out in holder
DE885523C (en) Process for the fine machining of circulating bodies and device for carrying out this process
DE145503C (en)
DE3109198A1 (en) MACHINE FOR MILLING SLOTS IN INTERNAL HOLES OF WORKPIECES
EP0699493A1 (en) Chip forming machine tool
DE2131709A1 (en) Machine for sharpening rock drill bits
DE2401656C2 (en) Multi-station automatic lathe
DE2828581A1 (en) PROCESS FOR MACHINING THE EXTERNAL SURFACE OF ROTATING BODIES AND CHIPPING MACHINE TO PERFORM THIS PROCESS

Legal Events

Date Code Title Description
8120 Willingness to grant licenses paragraph 23
8139 Disposal/non-payment of the annual fee