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WO2002014000A1 - Unite d'usinage et de verification pour la construction de machines automatiques speciales et de transfert lineaire - Google Patents

Unite d'usinage et de verification pour la construction de machines automatiques speciales et de transfert lineaire Download PDF

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Publication number
WO2002014000A1
WO2002014000A1 PCT/CH2001/000482 CH0100482W WO0214000A1 WO 2002014000 A1 WO2002014000 A1 WO 2002014000A1 CH 0100482 W CH0100482 W CH 0100482W WO 0214000 A1 WO0214000 A1 WO 0214000A1
Authority
WO
WIPO (PCT)
Prior art keywords
workpiece
unit
units
machining
workpiece carrier
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.)
Ceased
Application number
PCT/CH2001/000482
Other languages
German (de)
English (en)
Inventor
Emil Köng
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP01960015A priority Critical patent/EP1311362A1/fr
Priority to AU2001281629A priority patent/AU2001281629A1/en
Publication of WO2002014000A1 publication Critical patent/WO2002014000A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
    • B23Q1/015—Frames, beds, pillars
    • 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
    • B23Q37/00—Metal-working machines, or constructional combinations thereof, built-up from units designed so that at least some of the units can form parts of different machines or combinations; Units therefor in so far as the feature of interchangeability is important
    • 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
    • B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
    • B23Q39/04—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being arranged to operate simultaneously at different stations, e.g. with an annular work-table moved in steps
    • B23Q39/048—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being arranged to operate simultaneously at different stations, e.g. with an annular work-table moved in steps the work holder of a work station transfers directly its workpiece to the work holder of a following work station
    • 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
    • B23Q41/00—Combinations or associations of metal-working machines not directed to a particular result according to classes B21, B23, or B24

Definitions

  • the invention relates to a production unit for the automatic complete machining and control of workpieces, in particular of short turned parts with high accuracy, which is determined by different series or arrangement of differently equipped individual units for the construction of automatic linear transfer and special machines.
  • the multi-spindle automatic lathe with its classic spindle drum generates a strong heat concentration in addition to harmful vibrations at the high speeds required by practice, and therefore thermal expansions that are difficult to control despite expensive countermeasures, has insufficient flexibility, and can only carry out simple reverse machining, regardless of the occasionally arranged counterspindles not enough cutting tools available due to space constraints and, in addition to poor access to the individual workstations, a significantly impaired chip fall, etc.
  • the eccentrically rotating cutting tools and their carrier elements cause inadmissible deformations of the facing heads with insufficient lubrication, fretting corrosion, jerk sliding or even tight seating of the required speeds and the quadratic centrifugal forces short radial slide due to space; enormous actuating forces with harmful high bearing loads in the deflection mechanism of the axial-radial movement; Unbalance and vibration problems due to large rotating masses; elastic and thermal elongations at the cutting force transmission elements; further deformations that damage the work process, since there is no rigid force flow from the tool to the workpiece; Inadmissible heat build-up with undesirable, position-changing changes in position due to the large lengths of the hydraulic feed drives and their inevitable friction and leakage oil losses. All of the above-mentioned weak points relate to the tool-carrying processing units for the production of turned parts on rotary transfer and longitudinal transfer machines. Both types of machine are also poorly or not at all suitable for processing chuck parts.
  • the disadvantage of the basic clock principle is the number of stations defined as a function of the diameter of the circle, which does not allow flexibility in terms of numerical enlargement or reduction for different needs.
  • it often binds workpiece carriers in excess, since their number of stations can be larger than their number of productive work stations, which causes high costs.
  • Working with rotating tools restricts the use of many tools per work spindle, which means that more work stations and therefore larger dimensions with increasing thermal expansion and correspondingly increasing machine prices are unavoidable.
  • the disadvantage of the longitudinal transfer machine is the additional transport device required for the return of the workpiece carriers. It leads to a doubling of the transport route and thus to an increase in the number of workpiece carriers in circulation, resulting in long changeover times and massively increasing machine prices. Otherwise, the ones already mentioned apply Defects of the working principle of the rotating tools on the stationary workpiece for the machining of turned parts.
  • US Pat. No. 4,612,690 discloses an arrangement with offset processing units on a longitudinal transfer machine, in which the workpieces are passed on in cycles from one station to the next by means of transfer bars.
  • DE 30 35451 A1 shows a machine which, by changing the arrangement of the assemblies, enables machining of a turned part on both sides without a turning and transport device.
  • the use of the same transfer method on a multi-spindle longitudinal transfer machine is explained using DE 33 37 198 C2.
  • the tool changer mentioned here and the clamping tools stored above every second work station and their feed mechanisms impair accessibility to the work rooms, block the arrangement of further cutting tools, entire machining units or measuring and other auxiliary devices.
  • each extra tool handover and indexing movement leads to longer idle times, reduced accuracy and significantly higher construction costs.
  • the invention described here avoids the aforementioned disadvantages. It is based on the task of developing a highly flexible manufacturing facility with electromechanical, preferably numerically controlled workpiece movements for the automatic complete machining and control of workpieces, in particular turned parts with high accuracy, by arranging two or more identical machining and / or control units in a row.
  • Fig. 1 View of an embodiment of the manufacturing unit consisting of a frame module, a tool support unit with indicated cutting tools and in their basic position according to Fig. 2 offset opposite workpiece carrier unit.
  • FIG 3 shows the complete view of a possible embodiment variant of the fastening unit with a built-up milling / drilling unit and indicated type of fastening on an opposite frame module (shown in broken lines)
  • Fig. 4a to 4f some schematically illustrated types of arrangement by differently setting up or assembling individual manufacturing units without or with external supports and simplified meandering loading, working, transfer and removal movement options in the floor plan
  • FIGS. 1 to 4 The explanation of the invention will be explained with reference to FIGS. 1 to 4.
  • the same components in the illustrated exemplary embodiments are provided with the same reference symbols.
  • 1 shows the solid part of the upper part of the frame module 1 with the fastening surface BF1 on the tool side and the fastening surface BF2 on the workpiece side.
  • fixed cutting tools 2 also according to FIG. 2 or in addition to these, single and / or multi-spindle drilling, milling or other machining units can be placed on a fixed or exchangeable and presettable tool carrier unit on the tool fastening surface.
  • a workpiece carrier unit is built on the mounting surface BF2, the workpiece spindle 11.2 of which can be moved in the X and Z directions.
  • This unit moves directly on the frame module 1, which receives the guides 4 and the linear drive for the X axis 5 (only the center of the threaded spindle is shown).
  • the thermosymmetrical workpiece carrier slide 6.2 moves on the play-free guides 4 with the quill 7, which is designed directly as a Z axis and is secured against rotation by the guide rod 8, on which an axially play-free direct measuring system is provided for highly precise movement steps.
  • the main drive takes place from the motor 9 through the housing 10 onto the workpiece spindle 11.2.
  • the workpiece carrier movements in the X and Z directions are numerically controlled and are effected using known means such as servomotors, pretensioned spindle / nut drives or by linear motors, direct and / or indirect position measuring Systems can be used equally in a closed or open control loop and meet the different accuracy requirements.
  • care was taken consistently that, in addition to the shortest distance between the workpiece holding device and the cutting tool, the distance between the measuring system and the cutting point also corresponds to a minimum, since this distance is not covered by the former and thus additional thermal and elastic deformations to impermissible loss of accuracy being able to lead.
  • FIG. 2 illustrates how a linear transfer machine with any desired number of work stations is built up by the mutually linear stringing together of individual, structurally identical manufacturing units.
  • the meandering track 12 shows the basic workpiece displacement through the machine without depicting the many individual movement steps in the tool area.
  • the take-over spindle 11.2 adjusts itself to the predetermined speed and at the same time drives the workpiece 14 numerically controlled to the fixed cutting tools of a schematically represented tooling 2.
  • the turning process begins with a double external machining on the tool row i, whereby inside and outside operations from the radial direction or from the front end are generally done on both sides and in the axis of rotation with overhead turning or changing the direction of rotation equally and at the same time without restrictions even with the smallest diameters and can also be used with one or more rotating spindles, off-center operations parallel to the workpiece axis of rotation and the addition of speeds in the axis of rotation can be carried out.
  • the workpiece to be machined can be brought up for machining and control in the X - Z plane from three sides to a variety of fixed and / or rotating cutting and / or measuring tools, whereby the individually or simultaneously numerically controlled X and Z - Axes can be used for the workpiece transfer, all necessary feed, feed and retraction movements of the machining process and / or the workpiece control, the further transport to the workpiece transfer position and the automatic handling without the need for a workpiece turning device and / or a separate workpiece transport system, each with intermediate stacking or storage of machined workpieces is avoided.
  • Another essential feature is that an additional work station is available for the complete machining of the more complicated workpiece side of bar and chuck turned parts by arranging an odd number of units to further increase the number of tools and thus to save on units, clamping devices and axis controls.
  • the use of several, assembled individual units to form a longitudinal transfer machine no longer reduces the performance of the machine due to the longest individual operation, which determines the cycle time, because several short operations are carried out at other stations due to the multiple arrangement of tools during the same time, only in Y-, B- or from a slanted direction with the Tools are moved to the workpiece, otherwise the workpiece always moves with the movement axes X, Z and C against the tools.
  • standardized external and internal turning tools as well as center tools can be used or skipped for different workpieces, but can also remain permanently installed.
  • FIG. 3 shows a complete view of the fastening unit, the main and feed drives 10, 13 shown in FIG. 1, each of identical construction, being arranged differently and, in addition, a milling and drilling unit 18 controlled in the Y direction being built directly on the workpiece carrier slide 6 ,
  • the manufacturing unit is fastened via the flange 19 of the frame module 1 to the frame module 1 shown in dash-dotted lines and opposite it and rigidly connected in a known manner.
  • outer supports 20 according to FIGS. 4e, f are provided, which allow the units to rest correctly on the floor surface 21.
  • the tunnel-like recess 22 is used for the installation of a chip conveyor.
  • FIG. 4a to 4f schematically show some assembly and set-up variants with the manufacturing units according to the invention for the automatic complete machining and control of workpieces and of models for the production of individual parts and small series with manual loading and automatic movement in the floor plan.
  • the assembly arrangements are individually and optimally put together according to the respective production needs and can be changed at any time without restrictions or reworking during production changes and can be adapted to the new situation.
  • the supply of the bar sections or individual part blanks, indicated only at 23, and the removal of the completely machined and controlled workpieces, not shown, is carried out using standard automation devices.
  • an automatic bar loading magazine is built in front of the two units arranged on the input side, each with a separating and transfer unit of known type 24, the latter introducing the bar sections deburred on both sides into the clamping tool of the first processing unit (according to FIG. 4a)
  • the transfer unit with the two subsequent workstations can, for example, also be constructed on a common frame module, to which all other units can be attached (not shown).
  • the workpiece clamping points and / or measuring points are placed before each clamping or Measuring process cleaned automatically.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)

Abstract

L'invention concerne une unité de fabrication, définie par différents alignements successifs ou agencements d'unités individuelles différemment équipées, pour la construction de machines spéciales et de transfert linéaire. Cette unité de fabrication permet l'usinage complet et la vérification automatiques de pièces à usiner, en particulier de pièces rotatives courtes de précision. Les pièces à fabriquer (14) passent depuis trois côtés devant une pluralité d'outils de coupe et/ou de mesure (2) pour l'enlèvement des copeaux et la vérification dans le plan X-Z. Les axes X et Z à commande numérique sont utilisés pour la réception des pièces, tous les mouvements nécessaires de réglage, d'avance et de retour des opérations de fabrication et de vérification, la manipulation automatique, l'acheminement ultérieur en méandres et le transfert des pièces à usiner vers l'installation suivante jusqu'à la sortie de la machine, sans aucun système d'inversion et de transport des pièces à usiner. Dans le sens Y, B et incliné, des outils de coupe supplémentaires (18) exécutent des opérations partielles sur des pièces à usiner mobiles ou stationnaires.
PCT/CH2001/000482 2000-08-14 2001-08-07 Unite d'usinage et de verification pour la construction de machines automatiques speciales et de transfert lineaire Ceased WO2002014000A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP01960015A EP1311362A1 (fr) 2000-08-14 2001-08-07 Unite d'usinage et de verification pour la construction de machines automatiques speciales et de transfert lineaire
AU2001281629A AU2001281629A1 (en) 2000-08-14 2001-08-07 Machining and control unit for the production of automatic linear transfer and special machines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1578/00 2000-08-14
CH15782000 2000-08-14

Publications (1)

Publication Number Publication Date
WO2002014000A1 true WO2002014000A1 (fr) 2002-02-21

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Application Number Title Priority Date Filing Date
PCT/CH2001/000482 Ceased WO2002014000A1 (fr) 2000-08-14 2001-08-07 Unite d'usinage et de verification pour la construction de machines automatiques speciales et de transfert lineaire

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Country Link
EP (1) EP1311362A1 (fr)
AU (1) AU2001281629A1 (fr)
WO (1) WO2002014000A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006010351A3 (fr) * 2004-07-21 2006-03-16 Emag Maschfab Gmbh Machine de transfert flexible
DE102010050974A1 (de) * 2010-11-08 2012-05-10 Niles-Simmons Industrieanlagen Gmbh Werkzeugmaschine mit Messsystem
CN118341993A (zh) * 2024-04-10 2024-07-16 联钢精密科技(中国)有限公司 一种用于光杆加工防偏芯的车削装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3337198A1 (de) * 1983-10-13 1985-05-02 Mauser-Werke Oberndorf Gmbh, 7238 Oberndorf Bearbeitungsmaschine
DE3626324A1 (de) * 1986-08-02 1988-02-04 Pittler Ag Maschf Doppelspindel-drehmaschine
DE4405507A1 (de) * 1994-02-22 1995-08-24 Nagel Peter CNC-gesteuertes Bearbeitungszentrum
DE9321397U1 (de) * 1993-05-14 1997-11-13 HESSAPP Hessische Apparatebau GmbH, 65232 Taunusstein Drehmaschine
DE19713872A1 (de) * 1997-04-04 1998-10-08 Carl Benzinger Gmbh & Co Werkzeugmaschine
JP2000176701A (ja) * 1998-12-10 2000-06-27 Nakamura Tome Precision Ind Co Ltd 工作機械の変位補正装置及び２主軸対向旋盤

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3337198A1 (de) * 1983-10-13 1985-05-02 Mauser-Werke Oberndorf Gmbh, 7238 Oberndorf Bearbeitungsmaschine
DE3626324A1 (de) * 1986-08-02 1988-02-04 Pittler Ag Maschf Doppelspindel-drehmaschine
DE9321397U1 (de) * 1993-05-14 1997-11-13 HESSAPP Hessische Apparatebau GmbH, 65232 Taunusstein Drehmaschine
DE4405507A1 (de) * 1994-02-22 1995-08-24 Nagel Peter CNC-gesteuertes Bearbeitungszentrum
DE19713872A1 (de) * 1997-04-04 1998-10-08 Carl Benzinger Gmbh & Co Werkzeugmaschine
JP2000176701A (ja) * 1998-12-10 2000-06-27 Nakamura Tome Precision Ind Co Ltd 工作機械の変位補正装置及び２主軸対向旋盤

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 09 13 October 2000 (2000-10-13) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006010351A3 (fr) * 2004-07-21 2006-03-16 Emag Maschfab Gmbh Machine de transfert flexible
DE102010050974A1 (de) * 2010-11-08 2012-05-10 Niles-Simmons Industrieanlagen Gmbh Werkzeugmaschine mit Messsystem
CN118341993A (zh) * 2024-04-10 2024-07-16 联钢精密科技(中国)有限公司 一种用于光杆加工防偏芯的车削装置

Also Published As

Publication number Publication date
EP1311362A1 (fr) 2003-05-21
AU2001281629A1 (en) 2002-02-25

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