GB2498061A - Rotary cutter or clamp with retrofittable epicyclic gear - Google Patents

Rotary cutter or clamp with retrofittable epicyclic gear Download PDF

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Publication number
GB2498061A
GB2498061A GB1222033.1A GB201222033A GB2498061A GB 2498061 A GB2498061 A GB 2498061A GB 201222033 A GB201222033 A GB 201222033A GB 2498061 A GB2498061 A GB 2498061A
Authority
GB
United Kingdom
Prior art keywords
text
slides
epicyclic gear
spindle axis
machine tool
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Withdrawn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
GB1222033.1A
Inventor
Tino Freigang
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.)
EMAG Holding GmbH
Original Assignee
EMAG Holding 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 EMAG Holding GmbH filed Critical EMAG Holding GmbH
Publication of GB2498061A publication Critical patent/GB2498061A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/10Chucks characterised by the retaining or gripping devices or their immediate operating means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B29/00Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/24Tool holders for a plurality of cutting tools, e.g. turrets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B3/00General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
    • B23B3/22Turning-machines or devices with rotary tool heads
    • B23B3/26Turning-machines or devices with rotary tool heads the tools of which perform a radial movement; Rotary tool heads thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/10Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/16Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/10Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/16Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
    • B23B31/16045Jaws movement actuated by screws and nuts or oblique racks
    • B23B31/16079Jaws movement actuated by screws and nuts or oblique racks using mechanical transmission through the 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
    • B23B31/10Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/16Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
    • B23B31/16083Jaws movement actuated by gears and racks
    • B23B31/16116Jaws movement actuated by gears and racks using mechanical transmission through the spindle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2260/00Details of constructional elements
    • B23B2260/072Grooves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2260/00Details of constructional elements
    • B23B2260/11Planetary drives

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)
  • Turning (AREA)
  • Structure Of Transmissions (AREA)

Abstract

A machine tool has a rotary element 1 with slides 16, 16', which may carry cutting chisels 2, 2' or chuck jaws (21, Figure 2). Rotary element 1 can be driven to rotate about a spindle axis 17, and slides 16, 16 can additionally be moved radially with respect to spindle axis 17. The radial movement is introduced into the rotary element by an epicyclic gear 19 through a shaft 14 arranged concentrically with respect to spindle axis 17. The epicyclic gear may be preassembled to or retrofittable to rotary element 1. Advantageously, slides 16, 16â may move synchronously to avoid imbalance.

Description

Introduction Of Additional Movements Into
Rotating Elements Of Machine Tools The present invention is concerned with the introduction of additional movements into rotating elements of machine tools, such as the radial advancing of rotating tools, automated workpiece clamping, or the automatic retightening of DE 199 21 919 Al discloses a lathe for machining stationary workpieces with rotating tools. The tools are movably guided on slides on a rotating rotary element, and are also adapted to be moved relative tothe workpiece and stopped independently of one another. For this, epicyclic gearing is provided; the power take-off movement is transmitted, through a spur gear with internal and external teeth, to a slide drivéshaft which is in turn connected to a worm gear. As a result, it is possible to advance a plurality of tools radially to the workpiece independently of one another. However, the technical complexity involved is very great. Because of the spur gear being provided with internal and external teeth, it is not possible to use a central slide driveshaft for the synchronous engagement of the tools. The gear is integrated in a multifunctional apparatus and is not suitable for retrofitting to existing machines. . The problem of the present inyontion is to make it easier to suerimpose additional movements on rotating. elements of machine tools. This problem is solved with an apparatus accoiding to claim 1..
Preferred embodiments of the invention will now be described by way of example only and with referenpe to the accompanying drawings, in which: Figure 1 shoWs the,introduction of an additional movement into a rotating rotary.element 1, in schernaticyiewapd.
Figure 2 shows.a rotary element 1 embodied as a chuck.
As shown in Figure 1, the main spindle ofarnachine tool carrying a rotary element 1 is synchrohised by ii eansof an épicyclic gear with a shaft 14 for 30. introducing an adition?I movement..... . . . For this purpose; the rotary element 1 is mounted in a frame 5 for rotation about a spindle axis 17, and is drivento rotate by aspindle.motpr 15: Slides. 16, 1.6' are radially movably gçided on the rotary element 1, as indicated by the double arrows 18, 16', and the slides 16, 16.cari carry tools. such as cutting tools 35. . In order to move the slides towards or away from the spkndle axis 11, a second movement has to be superimposed on the rotary movement of the rotary element 1 The slides 16, 16' are made to move radially relative to the spindle axis 17 by rotation of a gear wheel 11. This drives the shaft 14, which is disposed * concentrically with respect to the spindie axis 17, The shaft 14 drives bevel gears 4, and screw-threaded pinions 3, 3 connected to the bevel gears cooperate with the slides 16, 16' to cause them to move.
The gear wheel ills operatively connected, via an epicyclic gear 19, to a gear wheel 12 which is mounted to drive the rotation element 1. In order to generate the additional movement, a motor l3is flange-mounted on the epicyclic gear 19, and this motor directly drives a sun gear 8 that meshes with a planet wheel 7. The planet wheel in turn engages in the internal teeth of a ring gear 6. The ring gear 6 is mounted for rotation on the central spindle. A planet carrier 9 is rigidly connected to a gear wheel 10. Finally, the gear wheel 10 drives the gear wheel 11, so that the shaft 14 is driven to rotate and. thus produce the superimposed rotary movement.
When the motor 13 is stationary, the slides 16, 16' do notalter their position.
Depending on the direction of rotation of the motor 13, the slides 16, 16' are either advanced radially inwards, towards the spindle axis 17, or moved outwards.
Advantageously the synchronous movement of the slides 16, 16' avoids any imbalances.
To summarise, the speed of the spindle motor 15 is imparted to the epicyclic gear 19 by the gear wheel 12 and the additional movement is introduced into the rotary element through the gear wheel 11. Particularly advantageously, the spindle axis 11 with the gear wheel 12 and the shaft 14 with the gear wheel 11 are mounted concentrically. As a result, the epicyclic gear 19 can be preassembled as a compact assembly. and easily retrofitted. . .. . The rotary element.1 may be configuredin a machine tool as a tool holder for rotary tools for machining stationary workpieces In Figure 1 cutting chisels 2 2' are shown as an example of the tools which can be used Another embodiment is shoWn in Figure 2. There, the rotary élementl is embodied asa chuck. The chuck jaws 21 can be readjusted during machining, for example to retighteri a gnp onTthe workpiece.;

Claims (3)

  1. <claim-text>LAIMS1. A machine thol having a.rotryIment (1) with slides (16, 16'), wherein said iotàry element can be driven to rotate about a spindle axis (17).wherein the slides(16, 16') can be moved anadditional movement radially with respect tO the spindle axis(1t),.wherein.the additiona movement is introduced into the rotary elementby an epicyclic gear (19)ihrougha shaft (14) characterised. in that the shaft (14) is arranged concentrically with respect to 10. the spindle axis (17).</claim-text> <claim-text>
  2. 2. A machine tool according tO claim 1 wherein chuck jaws. (21) are arranged on the slides.( 16, 1 6'),.further charactérised in that the chuck jaws (21) can be moved during machining in order to retighten a workpiece.</claim-text> <claim-text>15.. . .
  3. 3. A machine tool according to claim 1, wherein cutting chisels (2, 2') are arranged on the slides (16, 16'.), Iv ther.characterised in that the cutting chisels (2 2') can be. moved radially towards or away trott a workpiece.</claim-text> <claim-text>4. A machine tool according to claim 1 or 2, further characterised in that the epicyclic gear (19) can be preas9m.b)ed or retrofitied as a compact assembly.</claim-text> <claim-text>5. .A machine tool substantially as decri.bed herein with reference to the accompanying drawings. . . . . . .</claim-text>
GB1222033.1A 2011-12-22 2012-12-06 Rotary cutter or clamp with retrofittable epicyclic gear Withdrawn GB2498061A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011121955 2011-12-22

Publications (1)

Publication Number Publication Date
GB2498061A true GB2498061A (en) 2013-07-03

Family

ID=48579668

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1222033.1A Withdrawn GB2498061A (en) 2011-12-22 2012-12-06 Rotary cutter or clamp with retrofittable epicyclic gear

Country Status (2)

Country Link
ES (1) ES2432478B1 (en)
GB (1) GB2498061A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019036734A1 (en) * 2017-08-25 2019-02-28 Friedrich Moser Device for clamping a workpiece
IT201800006221A1 (en) * 2018-06-12 2019-12-12 STATIC BAR TURNING DEVICE
WO2021073469A1 (en) * 2019-10-14 2021-04-22 刘玉飞 Device and method capable of adjusting posture for bearing disc parts
FR3129309A1 (en) * 2021-11-23 2023-05-26 Machines Serdi Adjustable machining system including a movable quill

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2642965A1 (en) * 1976-09-24 1978-03-30 Wagner Maschf Gustav Machine tool clamp head for non-rotated workpieces - has hollow shaft connected to inner axially displaceable shaft by planetary gearing
US4411178A (en) * 1981-06-04 1983-10-25 Power Cutting Incorporated Pipe end preparation machine
US4482163A (en) * 1982-09-29 1984-11-13 Litton Industrial Products, Inc. Spindle powered adjustable chuck
DE3941783A1 (en) * 1989-12-19 1991-06-20 Rudolf Hildebrand Machine tool esp. for tube ends - uses cutter guided around tube periphery and has cog driving planetary wheels coupled to spindle driving cutter
PL158430B1 (en) * 1988-09-28 1992-09-30 Inst Obrobki Skrawaniem Machine tool with a circulating cross slide
WO2000069589A1 (en) * 1999-05-12 2000-11-23 Schübel Engineering Gmbh Multifunctional devices for treating the end sections of work pieces by turning on a lathe with a stationary work piece and at least one revolving tool
CN201693236U (en) * 2010-06-30 2011-01-05 天津市福臣机电设备开发有限公司 Rotary-cutting saw for cutting circular pipe

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB581093A (en) * 1944-07-14 1946-10-01 Cons Pneumatic Tool Company Lt Improvements in portable power-driven drilling and like machines
DE4202134C1 (en) * 1992-01-27 1993-08-26 Hoesch Maschinenfabrik Deutschland Ag, 4600 Dortmund, De

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2642965A1 (en) * 1976-09-24 1978-03-30 Wagner Maschf Gustav Machine tool clamp head for non-rotated workpieces - has hollow shaft connected to inner axially displaceable shaft by planetary gearing
US4411178A (en) * 1981-06-04 1983-10-25 Power Cutting Incorporated Pipe end preparation machine
US4482163A (en) * 1982-09-29 1984-11-13 Litton Industrial Products, Inc. Spindle powered adjustable chuck
PL158430B1 (en) * 1988-09-28 1992-09-30 Inst Obrobki Skrawaniem Machine tool with a circulating cross slide
DE3941783A1 (en) * 1989-12-19 1991-06-20 Rudolf Hildebrand Machine tool esp. for tube ends - uses cutter guided around tube periphery and has cog driving planetary wheels coupled to spindle driving cutter
WO2000069589A1 (en) * 1999-05-12 2000-11-23 Schübel Engineering Gmbh Multifunctional devices for treating the end sections of work pieces by turning on a lathe with a stationary work piece and at least one revolving tool
CN201693236U (en) * 2010-06-30 2011-01-05 天津市福臣机电设备开发有限公司 Rotary-cutting saw for cutting circular pipe

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019036734A1 (en) * 2017-08-25 2019-02-28 Friedrich Moser Device for clamping a workpiece
US11440104B2 (en) 2017-08-25 2022-09-13 Most Technik Gmbh Device for clamping a workpiece
IT201800006221A1 (en) * 2018-06-12 2019-12-12 STATIC BAR TURNING DEVICE
EP3581301A1 (en) * 2018-06-12 2019-12-18 Bucci Automations S.p.A. Turning device with static bar
WO2021073469A1 (en) * 2019-10-14 2021-04-22 刘玉飞 Device and method capable of adjusting posture for bearing disc parts
FR3129309A1 (en) * 2021-11-23 2023-05-26 Machines Serdi Adjustable machining system including a movable quill

Also Published As

Publication number Publication date
ES2432478R1 (en) 2014-05-20
ES2432478B1 (en) 2015-03-24
ES2432478A2 (en) 2013-12-03

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)