ITBO20050752A1 - Portautensili per fresatrici, macchina fresatrice e procedimento di fresatura - Google Patents

Portautensili per fresatrici, macchina fresatrice e procedimento di fresatura

Info

Publication number
ITBO20050752A1
ITBO20050752A1 IT000752A ITBO20050752A ITBO20050752A1 IT BO20050752 A1 ITBO20050752 A1 IT BO20050752A1 IT 000752 A IT000752 A IT 000752A IT BO20050752 A ITBO20050752 A IT BO20050752A IT BO20050752 A1 ITBO20050752 A1 IT BO20050752A1
Authority
IT
Italy
Prior art keywords
milling
tool
rotating portion
holder
machine
Prior art date
Application number
IT000752A
Other languages
English (en)
Inventor
Maurizio Ferrari
Roberto Muselli
Original Assignee
Jobs Spa
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 Jobs Spa filed Critical Jobs Spa
Priority to IT000752A priority Critical patent/ITBO20050752A1/it
Priority to EP06125045A priority patent/EP1795286B1/en
Priority to DE602006005448T priority patent/DE602006005448D1/de
Priority to AT06125045T priority patent/ATE424268T1/de
Priority to ES06125045T priority patent/ES2322092T3/es
Priority to CN200620164707.7U priority patent/CN201154446Y/zh
Priority to US11/634,939 priority patent/US7497648B2/en
Publication of ITBO20050752A1 publication Critical patent/ITBO20050752A1/it

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C5/00Milling-cutters
    • B23C5/26Securing milling cutters to the driving spindle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/36Chucks with means for adjusting the chuck with respect to the working-spindle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C3/00Milling particular work; Special milling operations; Machines therefor
    • B23C3/12Trimming or finishing edges, e.g. deburring welded corners
    • B23C3/126Portable devices or machines for chamfering edges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C3/00Milling particular work; Special milling operations; Machines therefor
    • B23C3/28Grooving workpieces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2226/00Materials of tools or workpieces not comprising a metal
    • B23C2226/27Composites, e.g. fibre reinforced composites
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2255/00Regulation of depth of cut
    • B23C2255/08Limitation of depth of cut
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00Chucks or sockets
    • Y10T279/17Socket type
    • Y10T279/17017Self-centering of floating
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/55Cutting by use of rotating axially moving tool with work-engaging structure other than Tool or tool-support
    • Y10T408/561Having tool-opposing, work-engaging surface
    • Y10T408/5623Having tool-opposing, work-engaging surface with presser foot
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/73Tool or tool-support with torque-applying spline
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00Gear cutting, milling, or planing
    • Y10T409/30Milling
    • Y10T409/303752Process
    • Y10T409/303808Process including infeeding
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00Gear cutting, milling, or planing
    • Y10T409/30Milling
    • Y10T409/304088Milling with means to remove chip
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00Gear cutting, milling, or planing
    • Y10T409/30Milling
    • Y10T409/304144Means to trim edge
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00Gear cutting, milling, or planing
    • Y10T409/30Milling
    • Y10T409/3042Means to remove scale or raised surface imperfection
    • Y10T409/304256Means to remove flash or burr
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00Gear cutting, milling, or planing
    • Y10T409/30Milling
    • Y10T409/304424Means for internal milling
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00Gear cutting, milling, or planing
    • Y10T409/30Milling
    • Y10T409/30448Milling with detachable or auxiliary cutter support to convert cutting action
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00Gear cutting, milling, or planing
    • Y10T409/30Milling
    • Y10T409/306216Randomly manipulated, work supported, or work following device
    • Y10T409/306496Randomly manipulated, work supported, or work following device with work follower
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00Gear cutting, milling, or planing
    • Y10T409/30Milling
    • Y10T409/306664Milling including means to infeed rotary cutter toward work
    • Y10T409/306776Axially
    • Y10T409/306832Axially with infeed control means energized in response to activator stimulated by condition sensor
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00Gear cutting, milling, or planing
    • Y10T409/30Milling
    • Y10T409/30784Milling including means to adustably position cutter
    • Y10T409/307952Linear adjustment
    • Y10T409/308176Linear adjustment with position indicator or limit means
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00Gear cutting, milling, or planing
    • Y10T409/30Milling
    • Y10T409/308624Milling with limit means to aid in positioning of cutter bit or work [e.g., gauge, stop, etc.]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00Gear cutting, milling, or planing
    • Y10T409/30Milling
    • Y10T409/309352Cutter spindle or spindle support
    • Y10T409/309408Cutter spindle or spindle support with cutter holder

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)
  • Jigs For Machine Tools (AREA)
IT000752A 2005-12-07 2005-12-07 Portautensili per fresatrici, macchina fresatrice e procedimento di fresatura ITBO20050752A1 (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IT000752A ITBO20050752A1 (it) 2005-12-07 2005-12-07 Portautensili per fresatrici, macchina fresatrice e procedimento di fresatura
EP06125045A EP1795286B1 (en) 2005-12-07 2006-11-29 A tool-holder for milling machines, a milling machine and a milling procedure
DE602006005448T DE602006005448D1 (de) 2005-12-07 2006-11-29 Werkzeughalter für Fräsmaschinen, Fräsmaschine und Fräsverfahren
AT06125045T ATE424268T1 (de) 2005-12-07 2006-11-29 Werkzeughalter für fräsmaschinen, fräsmaschine und fräsverfahren
ES06125045T ES2322092T3 (es) 2005-12-07 2006-11-29 Portaherramientas para fresadoras, maquina fresadora y metodo de fresado.
CN200620164707.7U CN201154446Y (zh) 2005-12-07 2006-12-06 用于铣床的刀架和铣床
US11/634,939 US7497648B2 (en) 2005-12-07 2006-12-07 Tool-holder for milling machines, a milling machine and a milling procedure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000752A ITBO20050752A1 (it) 2005-12-07 2005-12-07 Portautensili per fresatrici, macchina fresatrice e procedimento di fresatura

Publications (1)

Publication Number Publication Date
ITBO20050752A1 true ITBO20050752A1 (it) 2007-06-08

Family

ID=37872457

Family Applications (1)

Application Number Title Priority Date Filing Date
IT000752A ITBO20050752A1 (it) 2005-12-07 2005-12-07 Portautensili per fresatrici, macchina fresatrice e procedimento di fresatura

Country Status (7)

Country Link
US (1) US7497648B2 (it)
EP (1) EP1795286B1 (it)
CN (1) CN201154446Y (it)
AT (1) ATE424268T1 (it)
DE (1) DE602006005448D1 (it)
ES (1) ES2322092T3 (it)
IT (1) ITBO20050752A1 (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117862598A (zh) * 2023-12-25 2024-04-12 江苏旭晟电器成套设备有限公司 一种母线槽直线段防火槽连续开槽设备

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2966756B1 (fr) * 2010-11-02 2013-08-23 Snecma Procede d'usinage d'un carter d'un turbomoteur d'aeronef et outil de grattoir pour la mise en oeuvre du procede
CN102896352A (zh) * 2012-10-15 2013-01-30 江苏天宏自动化科技有限公司 一种可翻转±180°的定位自定心主轴卡盘
US20140112730A1 (en) * 2012-10-19 2014-04-24 Apple Inc. Profile cutter
JP6025580B2 (ja) * 2013-01-24 2016-11-16 株式会社スギノマシン バリ取り工具
JP6313287B2 (ja) * 2013-04-30 2018-04-18 シチズン時計株式会社 面取加工方法
CN108025450B (zh) 2015-09-02 2018-12-07 三菱瓦斯化学株式会社 钻孔用盖板、和使用其的钻孔加工方法
BR112018004848B1 (pt) * 2015-11-26 2023-02-14 Mitsubishi Gas Chemical Company, Inc. Método de corte
EP3417968B1 (en) 2016-02-17 2021-03-24 Mitsubishi Gas Chemical Company, Inc. Cutting method and manufacturing method for cut object
CN105881072A (zh) * 2016-06-27 2016-08-24 镇江市富德数控机床科技有限公司 一种螺旋铣床
CN107598241A (zh) * 2016-07-11 2018-01-19 五冶集团上海有限公司 一种精加工坡口小型装置
EP3539697A4 (en) 2016-11-14 2019-11-27 Mitsubishi Gas Chemical Company, Inc. ITEM FOR FORMING ACCUMULATION EDGE AND INTEGRATED EDGE FORMING METHOD
EP3633014A4 (en) 2017-05-25 2020-06-10 Mitsubishi Gas Chemical Company, Inc. CUTTING SUPPORT LUBRICATION MATERIAL, CUTTING SUPPORT LUBRICANT AND CUTTING METHOD
CN109128319A (zh) * 2017-06-13 2019-01-04 南京晨伟机械设备制造有限公司 一种传动轴铣键槽工装
AT520081B1 (de) * 2017-12-05 2019-01-15 Fill Gmbh Werkzeugmaschine, sowie Verfahren zum Bearbeiten eines Werkstückes
CN108581004A (zh) * 2018-05-17 2018-09-28 江苏永伟精密工具有限公司 一种高精度铣刀装置
JP7273466B2 (ja) * 2018-06-19 2023-05-15 川崎重工業株式会社 面取り加工装置及び面取り加工方法
CN111922764B (zh) * 2020-09-22 2021-01-12 维嘉数控科技(苏州)有限公司 控深铣补偿深度探测机构及电路板控深铣装置
CN113042883B (zh) * 2021-03-30 2023-08-11 永康市汉府工贸有限公司 一种焊接雕铣一体机及其使用方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4530627A (en) * 1976-08-19 1985-07-23 Kosmowski Wojciech B Pinless router
US4515505A (en) * 1982-10-28 1985-05-07 International Business Machines Corporation Pressure foot assembly for an end mill delete cutter
US4606696A (en) * 1984-06-25 1986-08-19 Slocum Alexander H Mechanism to determine position and orientation in space
JP2801307B2 (ja) * 1989-12-01 1998-09-21 日立精工株式会社 プリント基板穴明機における基板押え装置
IT1261334B (it) * 1993-11-05 1996-05-14 Pluritec Italia Testa operatrice per la lavorazione meccanica di piastre, in particolare di circuiti stampati.
KR100226028B1 (ko) * 1994-01-19 1999-10-15 신수케 수가타 공작기계의 칩기류 제거장치
SE515002C2 (sv) * 1999-03-23 2001-05-28 Sandvik Ab Fastspänningsanordning för verktygskoppling anordnad vid verktygsspindel samt en verktygsspindel
IT1309327B1 (it) * 1999-07-07 2002-01-22 Jobs Spa Apparato porta utensile per teste porta mandrino.
GB2363861A (en) * 2000-06-19 2002-01-09 Robotic Technology Systems Plc Processing an object, eg a workpiece, by a tool
ITBO20030043A1 (it) * 2003-01-31 2004-08-01 Jobs Spa Testa porta utensili per macchine utensili pluri asse
SE526258C2 (sv) * 2003-04-15 2005-08-09 Sandvik Intellectual Property Kraftförstärkare för maskinspindel med samverkande kilar
JP3968054B2 (ja) * 2003-06-02 2007-08-29 日立ビアメカニクス株式会社 プリント基板加工機
DE502004007437D1 (de) 2004-04-06 2008-08-07 Schunk Gmbh & Co Kg Dehnspanneinrichtung
ITBO20040217A1 (it) * 2004-04-16 2004-07-16 Jobs Spa Testa operatrice per macchine utensili pluriasse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117862598A (zh) * 2023-12-25 2024-04-12 江苏旭晟电器成套设备有限公司 一种母线槽直线段防火槽连续开槽设备

Also Published As

Publication number Publication date
US20070127997A1 (en) 2007-06-07
EP1795286B1 (en) 2009-03-04
DE602006005448D1 (de) 2009-04-16
CN201154446Y (zh) 2008-11-26
ES2322092T3 (es) 2009-06-16
ATE424268T1 (de) 2009-03-15
US7497648B2 (en) 2009-03-03
EP1795286A1 (en) 2007-06-13

Similar Documents

Publication Publication Date Title
ITBO20050752A1 (it) Portautensili per fresatrici, macchina fresatrice e procedimento di fresatura
WO2006020819A3 (en) Improved milling machine
ATE391579T1 (de) Werkzeugspindelkopf mit einer messvorrichtung zur tiefenkontrolle
DE10344293A1 (de) Schleifmaschine mit Rundlaufkorrektur
ATE468939T1 (de) Maschine zur bearbeitung von optischen werkstücken, insbesondere von kunststoff- brillengläsern
DE502005006145D1 (de) Linsenbearbeitungsmaschine
ATE539392T1 (de) Maschinenwerkzeug für hochgenaues mikrofräsen und/oder bohren
ATE500027T1 (de) Werkzeugmaschine mit mindestens einer schiebetüre
PL1943098T3 (pl) Frez i/lub narzędzie tokarskie
BRPI0404174A (pt) Dispositivo de gabarito para o controle dos movimentos de fresas de diamante ou similar, a ser montado em máquinas de polimento de borda de lousa de mármore ou pedra
KR100994914B1 (ko) 각도조절이 이루어지는 공구대
DE60310153D1 (de) Vorrichtung zur Bearbeitung des Randes eines Brillenglases mit einer Endbearbeitungseinheit zum Abfasen und Nuten
WO2020228338A1 (zh) 激光切割设备
JP2006263889A (ja) プリント基板加工機
DE502006002740D1 (de) Durchlaufschleifmaschine zum Bearbeiten einer ebenen Werkstückoberfläche
ATE470531T1 (de) Werkzeugmaschine mit spindelfutter- austauschmechanismus
CN210451801U (zh) 加工机床
CN204382103U (zh) 一种水刀四轴喷头
ATE347461T1 (de) Schärfen eines schneidwerkzeuges mit einer wellenförmigen schneide
JP5220367B2 (ja) 精密ロール旋盤およびロール微細加工方法
CN214418309U (zh) 一种单面卧式镗床
US20180272521A1 (en) Adjustable universal hardware installation and machining jig for carpentry application
CN209813563U (zh) 一种木工雕刻机
DK2035197T3 (da) Fræseværktøj til bearbejdning af kanter på paneler, samt fremgangsmåde og apparat til anvendelse af et sådant fræseværktøj
Eruotor et al. Design and development of multiple drilling sizes machine