FR2555086A1 - Construction morphology of a multifunctional machining machine tool for turning, milling, drilling, boring, tapping using one or two tools which are active simultaneously - Google Patents

Construction morphology of a multifunctional machining machine tool for turning, milling, drilling, boring, tapping using one or two tools which are active simultaneously Download PDF

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Publication number
FR2555086A1
FR2555086A1 FR8318330A FR8318330A FR2555086A1 FR 2555086 A1 FR2555086 A1 FR 2555086A1 FR 8318330 A FR8318330 A FR 8318330A FR 8318330 A FR8318330 A FR 8318330A FR 2555086 A1 FR2555086 A1 FR 2555086A1
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movements
machine tool
spindle
called
turning
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FR2555086B1 (en
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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
    • 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
    • B23B—TURNING; BORING
    • B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
    • B23B3/06—Turning-machines or devices characterised only by the special arrangement of constructional units
    • B23B3/065—Arrangements for performing other machining operations, e.g. milling, drilling
    • 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
    • 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
    • B23Q1/56—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism
    • B23Q1/60—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism
    • B23Q1/62—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism with perpendicular axes, e.g. cross-slides
    • B23Q1/621—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism with perpendicular axes, e.g. cross-slides a single sliding pair followed perpendicularly by a single sliding pair
    • B23Q1/626—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism with perpendicular axes, e.g. cross-slides a single sliding pair followed perpendicularly by a single sliding pair followed perpendicularly by a single sliding pair

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

Construction morphology combining a plurality of movements leading to the production of a multifunctional machining machine tool. The invention relates to the relative arrangement of the movements (or axes) of a machine tool making it possible to machine so-called parts "of revolution" and so-called "cube" parts, using one single active tool or using two tools which are active simultaneously. This device uses a framework 1 supporting a component-holding spindle 2. The framework 1 receives, optionally on each side, a group of four movements 3-3%, 4-4%, 5-5%, 6-6%, making it possible to bring into operation, independently and simultaneously turning, milling, drilling, boring, tapping tools on one side or on both sides simultaneously.

Description

D#SCRI PT ION
La présente invention concerne une disposition relative, particulière des différents mouvements (ou axes) d'une machine-outil, qui donnent à celîsci la possibilité de réaliser tous les usinages par enlèvement de matière couramment rencontrés : tournage, fraisage, perçage, taraudage, alésage, etc Toutes ces opérations pouvant en outre s'effectuer avec un seul outil actif ou deux outils actifs simultanément et de manière autonome.D # SCRI PT ION
The present invention relates to a relative, particular arrangement of the various movements (or axes) of a machine tool, which give celîsci the possibility of carrying out all the machining operations by removing material commonly encountered: turning, milling, drilling, tapping, boring , etc. All these operations can also be carried out with a single active tool or two active tools simultaneously and independently.

On connaît actuellement deux grandes familles de machines-outils modernes par enlèvement de matière, les centres d'usinage à commandes numériques, à broches horizontales ou verticales permettant de réaliser des#usinages tels que fraisage, alésage, perçage, taraudage sur des pièces dites "botte" ou "cube";
- les tours à commandes numériques, à broches horizontales ou verticales permettant de réaliser des usinages tels que le tournage et-éventuellement des opérations comolEmentaires simples de fraisage, perçage, taraudage sur des oièces dites de "révolution".Two large families of modern machine tools are currently known for removing material, the numerically controlled machining centers, with horizontal or vertical spindles making it possible to perform # machining operations such as milling, boring, drilling, tapping on so-called "parts". boot "or" cube ";
- Lathes with digital controls, with horizontal or vertical spindles making it possible to carry out machining operations such as turning and-possibly simple additional operations of milling, drilling, tapping on so-called "revolution" parts.

La disposition morphologique des mouvements suivant l'invention permet sur une seule machine d'exécuter tous ces usinages, soit imbriqués sur une même pièce, soit de réaliser une pièce dite de "révolution" comme sur un tour ou une pièce dite! *cuba" comme sur un centre usinage.  The morphological arrangement of the movements according to the invention makes it possible, on a single machine, to carry out all of these machining operations, either nested on the same part, or to produce a so-called "revolution" part as on a lathe or a so-called part! * cuba "as on a machining center.

La disposition morphologique des mouvements suivant l'invention permet en outre de réduire les temps d'usinage en faisant intervenir simultanément-deux outils de fraisage, perçage, alésage, taraudage ou également simultanément deux outils de tournage. The morphological arrangement of the movements according to the invention also makes it possible to reduce the machining times by making use simultaneously of two milling, drilling, boring, tapping tools or also simultaneously two turning tools.

La figure I représente une des réalisations possible de l'invention, à un seul outil actif, telle que le bbti de base (I} supporte : une broche portepièce fixe et/ou rotative (2). un mouvement horizontal latéral (3) supportant un mouvement vertical (4), supportant lui-mOme un mouvement horizontal transversal (5) intégrant une broche rotative (6) dans le coulisseau (7). Les pièces dites "cube" ou de "révolution" seront sucessivement amenées sur la broche porte-pièce (2) par un dispositif de palettisation dont le principe est connu.  FIG. I represents one of the possible embodiments of the invention, with a single active tool, such as the basic bbti (I} supports: a fixed and / or rotary workpiece spindle (2). A lateral horizontal movement (3) supporting a vertical movement (4), itself supporting a transverse horizontal movement (5) integrating a rotary spindle (6) in the slide (7). The so-called "cube" or "revolution" parts will be successively brought to the door spindle -piece (2) by a palletizing device, the principle of which is known.

S'il s'agit d'une pièce dite "cube" (8) la machine fonctionnera en mode "centre d'usinage" à savoir : la broche porte-pièce (2) étant fixe et bloquée, la combinaison des mouvements : horizontal latéral (3), vertical (4), transversal (5) et de la broche rotative (6), permettra tous les usinages tels que fraisage, per çage, alésage, taraudage sur la face (9) au moyen d'outils tournants (I5) montés dans la broche rotative (6). Par rotations et blocages successifs de la broche porte-pièce (2) on pourra usiner sucessivement les faces (IO), (II) et (12) de la pièce dite "cube". If it is a so-called "cube" part (8) the machine will operate in "machining center" mode, namely: the workpiece spindle (2) being fixed and locked, the combination of movements: horizontal lateral (3), vertical (4), transverse (5) and the rotary spindle (6), will allow all machining such as milling, drilling, boring, tapping on the face (9) by means of rotating tools ( I5) mounted in the rotary spindle (6). By successive rotations and blockings of the workpiece spindle (2) we can successively machine the faces (IO), (II) and (12) of the part called "cube".

S'il s'agit d'une pièce dite de "révolution" (I3), la machine fonctionnera en "tour" à savoir : la broche porte-pièce (2) anime la pièce en rotation, le mouvement horizontal latéral (3) positionne l'axe du mouvement transversal (5) dans le même plan que l'axe de la broche porte-pièce (2), la combinaison des mouve- ments : vertical (4 > et transversal (5) permettra le tournage au moyen d1 outils fixes (I6) montés sur le coulisseau (7). If it is a part called "revolution" (I3), the machine will operate in "turn", namely: the workpiece spindle (2) drives the rotating part, the horizontal lateral movement (3) positions the axis of the transverse movement (5) in the same plane as the axis of the workpiece spindle (2), the combination of the movements: vertical (4> and transverse (5) will allow turning using d1 stationary tools (I6) mounted on the slide (7).

On pourra également réaliser : - Des usinages tels que l'alésage (17) par "tournage" à le face supérieure (I4) d' une pièce dite "cube".  It is also possible to carry out: - Machining such as the bore (17) by "turning" on the upper face (I4) of a part called "cube".

- Des usinages types fraisage, perçage, alésage, taraudage sur la face (i4) d'une pièce dite "cube" en montant sur le coulisseau (7) un renvoi d'angle entratné par la broche rotative (6 > et équipé d'un outil (19). - Typical milling, drilling, reaming, tapping on the face (i4) of a so-called "cube" part by mounting on the slide (7) a bevel gear driven by the rotary spindle (6> and equipped with a tool (19).

- Des usinages tels que fraisage, perçage, alésage, taraudage sur le périphérie et en bout d'une pièce dite de "révolution" respectivement avec des outils (I5) sur la broche rotative (6 > ou des outils (19) evec le renvoi d'angle.- Machining such as milling, drilling, boring, tapping on the periphery and at the end of a part called "revolution" respectively with tools (I5) on the rotary spindle (6> or tools (19) with return angle.

La figure 2 représente une des réalisations possible de l'invention, à deux outils actifs simultanément, telle que le bSti de base (I) supporte une broche porte-pièce fixe et/ou rotative (2) et de chaque cté un groupe de quatre mouvements. FIG. 2 represents one of the possible embodiments of the invention, with two tools active simultaneously, such that the basic bSti (I) supports a fixed and / or rotary workpiece spindle (2) and on each side a group of four movements.

Chaque groupe comprend : les mouvements horizontaux latéraux (3) et (3'), verticaux (4) et (4'), horizontaux transversaux (5) et (5'), les broches rotatives (6) et (6') dans les coulisseaux (7) et (7')
Il ressort b l'examen comparé des figures I et Z que toutes les possi bilités d'usinage offertes par la combinaison des mouvements (3) (4) (5 > et (6) explicitées dans la description de la figure I, existent également et de façon autonome, par la combinaison des mouvements (3') (4') (5') et (6').Each group includes: horizontal lateral movements (3) and (3 '), vertical (4) and (4'), horizontal transverse (5) and (5 '), rotary spindles (6) and (6') in the slides (7) and (7 ')
It appears from the comparative examination of Figures I and Z that all the machining possibilities offered by the combination of the movements (3) (4) (5> and (6) explained in the description of Figure I, also exist and independently, by the combination of movements (3 ') (4') (5 ') and (6').

Chaque groupe de mouvements intervenant de part et d'autre de l'axe de la broche porte-pièce (2), les usinages réalisés par chacun d'eux peuvent avoir lieu simultanément aussi bien sur une pièce dite de "révolution" que sur une pièce dite "cube".  Each group of movements occurring on both sides of the axis of the workpiece spindle (2), the machining carried out by each of them can take place simultaneously as well on a part called "revolution" as on a piece called "cube".

Claims (5)

REvENDI#ATION5  RESALE # ATION5 au mouvement (5 > .  to movement (5>. pièce (2) fixe et/ou rotative et la broche rotative support d'outil (6) intégrée fixed and / or rotary part (2) and the integrated tool holder rotary spindle (6) tive des axes combinant les mouvements rectilignes (3) (4) (5 > , la broche porte tive of the axes combining the rectilinear movements (3) (4) (5>, the spindle carries I) Machine outil d'usinage multifonctionnelle caractérisée par la disposition relaI) Multifunctional machine tool characterized by the rela 2) Machine outil d'usinage multifonctionnelle caractérisée par la morphologie de2) Multifunctional machine tool characterized by the morphology of construction selon la revendication I. caractérisée en ce qu'elle permet l'usina construction according to claim I. characterized in that it allows the machining ge de pièce dite de "révolution" par la combinaison de :la rotation de la broche part age called "revolution" by the combination of: the rotation of the spindle porte-pièce (2 > , le positionnement dans l'axe de la broche support de pièce de workpiece carrier (2>, positioning in the axis of the workpiece support spindle l'outil de tournage (I#) par le déplacement du mouvement (3), la génération des the turning tool (I #) by moving the movement (3), generating déplacements nécessaires au tournage de la pièce par les mouvements conjugués displacements necessary for the turning of the part by the conjugate movements (4 > et (5 > .  (4> and (5>. 3) Machine outil d'usinage multifonctionnelle caractérisée par la morphologie de3) Multifunctional machine tool characterized by the morphology of construction selon la revendication I, caractérisée en ce qu'elle permet l'usina- construction according to claim I, characterized in that it allows the machining ge de pièce dite "cube" par la combinaison de :l'orientation et le blocage de room geometry called "cube" by the combination of: orientation and blocking la broche porte-pièce (2), la génération des déolacements nécessaires au fraisa the workpiece spindle (2), the generation of deololations necessary for milling ge, perçage, alésage, taraudage de la pièce par les mouvements conjugués (3) (4) ge, drilling, reaming, tapping of the workpiece by combined movements (3) (4) et (5) et la rotation de l'outil (15) monté dans la broche rotative (6). and (5) and the rotation of the tool (15) mounted in the rotary spindle (6). un bottier renvoi d'angle (18) ou une tête orientable dont le principe est connu. an angle reference block (18) or an adjustable head, the principle of which is known. la revendication I, caractérisée en ce que l'extrémité du coulisseau (7 > reçoit claim I, characterized in that the end of the slide (7> receives 41 Machine outil d'usinage multifonctionnelle caractérisée par la disposition selon 41 Multifunctional machine tool characterized by the arrangement according to d'une pièce dite de "révolution". of a piece called "revolution". til tournant, soit la face supérieure d'une pièce dite "cube", soit l'extrémité til turning, either the upper face of a piece called "cube", or the end Ce dispositif permet d'usiner par fraisage, perçage, alésage, taraudage avec ou This device allows machining by milling, drilling, boring, tapping with or groupe de quatre mouvements (3') (4') (5') et (6'), 6) Machine outil d'usinage multifonctionnelle caractérisée par la disposition selon la revendication 5, caractérisée en ce que chacun des deux groupes de quatre mouvements (3) (4) (5) 16) et (3') (4') (5') (6') peut intervenir indépendamment et simultanément sur une pièce dite de "révolution" ou dite "cube" placée sur la broche porte-pièce (2 > .  group of four movements (3 ') (4') (5 ') and (6'), 6) Multifunctional machine tool characterized by the arrangement according to claim 5, characterized in that each of the two groups of four movements (3) (4) (5) 16) and (3 ') (4') (5 ') (6') can intervene independently and simultaneously on a piece called "revolution" or called "cube" placed on the spindle workpiece carrier (2>. (4) (5) et (6) de la figure I est répété sur la face opposée du bâti (1) en un (4) (5) and (6) of Figure I is repeated on the opposite side of the frame (1) in one la revendication I, caractérisée en ce que le groupe des quatre mouvements (3) claim I, characterized in that the group of four movements (3) 5 > Machine outil d'usinage multifonctionnelle caractérisée pat la disposition selon 5> Multifunctional machine tool characterized by the arrangement according to
FR8318330A 1983-11-17 1983-11-17 CONSTRUCTION MORPHOLOGY OF A MULTIFUNCTIONAL MACHINE TOOL FOR TURNING, MILLING, DRILLING, BORING, TAPPING WITH ONE OR TWO SIMULTANEOUSLY ACTIVE TOOLS Expired FR2555086B1 (en)

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FR8318330A FR2555086B1 (en) 1983-11-17 1983-11-17 CONSTRUCTION MORPHOLOGY OF A MULTIFUNCTIONAL MACHINE TOOL FOR TURNING, MILLING, DRILLING, BORING, TAPPING WITH ONE OR TWO SIMULTANEOUSLY ACTIVE TOOLS

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FR8318330A FR2555086B1 (en) 1983-11-17 1983-11-17 CONSTRUCTION MORPHOLOGY OF A MULTIFUNCTIONAL MACHINE TOOL FOR TURNING, MILLING, DRILLING, BORING, TAPPING WITH ONE OR TWO SIMULTANEOUSLY ACTIVE TOOLS

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192221A2 (en) * 1985-02-19 1986-08-27 Schwäbische Hüttenwerke Gesellschaft mit beschränkter Haftung Milling and/or boring machine
US5058261A (en) * 1988-04-12 1991-10-22 Kitamura Machinery Co., Ltd. Machine tool
EP0568505A1 (en) * 1992-04-30 1993-11-03 MASTERWOOD S.p.A. A mobile linear tool-carrier for changing tools on numeric-command panel-working machines
DE19810517A1 (en) * 1998-03-11 1999-09-16 Kreidler Gmbh Rotary machine for use as grinding machine
US6623222B1 (en) * 1998-12-09 2003-09-23 Schwäbische Werkzeugmaschinen GmbH Machine tool with horizontal work spindle
EP1410862A2 (en) * 2002-10-17 2004-04-21 Toyoda Koki Kabushiki Kaisha Machine tool with rotation of workpiece and tool
US6761515B2 (en) * 1997-11-27 2004-07-13 Renault Automation Comau Method for lengthening the machining travel of a machine-tool, device for implementing same and machine-tool using such a device
FR2928288A1 (en) * 2008-03-07 2009-09-11 Sic Marking Holding Smh Soc Pa MARKING MACHINE
CN102328205A (en) * 2010-07-15 2012-01-25 常州精华数控设备有限公司 Punching and tapping engraving machine
CN102335756A (en) * 2011-09-30 2012-02-01 福昌精密制品（深圳）有限公司 Milling and drilling and boring composite numerical control machine tool carriage and part processing method
CN103894831A (en) * 2014-03-25 2014-07-02 福建科捷机电有限公司 Nut boring and tapping machine
CN104924085A (en) * 2015-06-12 2015-09-23 安徽马钢和菱实业有限公司 Milling and drilling combined machine tool for car axle head
CN109202456A (en) * 2018-11-01 2019-01-15 台州市九创科技有限公司 A kind of automatic boring and milling tapping compounding machine
IT201800004269A1 (en) * 2018-04-06 2019-10-06 Valter Ferlin DRILLING AND CONTEMPORARY MILLING UNIT ON A SINGLE ELEMENT, PARTICULARLY BUT NOT EXCLUSIVELY IN THE SECTOR OF MOLDS PRODUCTION FOR PLASTIC MATERIALS.
CN112207572A (en) * 2020-10-10 2021-01-12 重庆腾弘机械有限公司 Two-sided milling end surface boring work station

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CN104801981B (en) * 2015-05-08 2017-07-11 广东中聪机器人科技有限公司 A kind of double main shaft complex milling machine tools of oblique lathe bed

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EP0088644A1 (en) * 1982-03-10 1983-09-14 Renishaw plc Machine tool

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192221A2 (en) * 1985-02-19 1986-08-27 Schwäbische Hüttenwerke Gesellschaft mit beschränkter Haftung Milling and/or boring machine
EP0192221A3 (en) * 1985-02-19 1987-05-06 Schwäbische Hüttenwerke Gesellschaft mit beschränkter Haftung Milling and/or boring machine
US5058261A (en) * 1988-04-12 1991-10-22 Kitamura Machinery Co., Ltd. Machine tool
EP0568505A1 (en) * 1992-04-30 1993-11-03 MASTERWOOD S.p.A. A mobile linear tool-carrier for changing tools on numeric-command panel-working machines
US6761515B2 (en) * 1997-11-27 2004-07-13 Renault Automation Comau Method for lengthening the machining travel of a machine-tool, device for implementing same and machine-tool using such a device
DE19810517A1 (en) * 1998-03-11 1999-09-16 Kreidler Gmbh Rotary machine for use as grinding machine
US6623222B1 (en) * 1998-12-09 2003-09-23 Schwäbische Werkzeugmaschinen GmbH Machine tool with horizontal work spindle
EP1410862A2 (en) * 2002-10-17 2004-04-21 Toyoda Koki Kabushiki Kaisha Machine tool with rotation of workpiece and tool
EP1410862A3 (en) * 2002-10-17 2004-06-30 Toyoda Koki Kabushiki Kaisha Machine tool with rotation of workpiece and tool
US7104169B2 (en) 2002-10-17 2006-09-12 Toyoda Koki Kabushiki Kaisha Machine tool and bed structure thereof
FR2928288A1 (en) * 2008-03-07 2009-09-11 Sic Marking Holding Smh Soc Pa MARKING MACHINE
WO2009115745A2 (en) * 2008-03-07 2009-09-24 Sic Marking Holding - Smh Marking machine
WO2009115745A3 (en) * 2008-03-07 2009-11-12 Sic Marking Holding - Smh Marking machine
CN102328205A (en) * 2010-07-15 2012-01-25 常州精华数控设备有限公司 Punching and tapping engraving machine
CN102335756A (en) * 2011-09-30 2012-02-01 福昌精密制品（深圳）有限公司 Milling and drilling and boring composite numerical control machine tool carriage and part processing method
CN103894831A (en) * 2014-03-25 2014-07-02 福建科捷机电有限公司 Nut boring and tapping machine
CN104924085A (en) * 2015-06-12 2015-09-23 安徽马钢和菱实业有限公司 Milling and drilling combined machine tool for car axle head
IT201800004269A1 (en) * 2018-04-06 2019-10-06 Valter Ferlin DRILLING AND CONTEMPORARY MILLING UNIT ON A SINGLE ELEMENT, PARTICULARLY BUT NOT EXCLUSIVELY IN THE SECTOR OF MOLDS PRODUCTION FOR PLASTIC MATERIALS.
CN109202456A (en) * 2018-11-01 2019-01-15 台州市九创科技有限公司 A kind of automatic boring and milling tapping compounding machine
CN109202456B (en) * 2018-11-01 2023-09-15 台州市九创科技有限公司 Automatic boring, milling and tapping compound machine
CN112207572A (en) * 2020-10-10 2021-01-12 重庆腾弘机械有限公司 Two-sided milling end surface boring work station

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