WO1996031307A1 - Vorrichtung zum spanabhebenden arbeiten - Google Patents
Vorrichtung zum spanabhebenden arbeiten Download PDFInfo
- Publication number
- WO1996031307A1 WO1996031307A1 PCT/EP1996/001471 EP9601471W WO9631307A1 WO 1996031307 A1 WO1996031307 A1 WO 1996031307A1 EP 9601471 W EP9601471 W EP 9601471W WO 9631307 A1 WO9631307 A1 WO 9631307A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sleeve
- shaft
- cutting head
- clamping
- net
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
- B23B51/0486—Drills for trepanning with lubricating or cooling equipment
- B23B51/0493—Drills for trepanning with lubricating or cooling equipment with exchangeable cutting inserts, e.g. able to be clamped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/02—Boring bars
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/16—Cutting by use of rotating axially moving tool with control means energized in response to activator stimulated by condition sensor
- Y10T408/17—Cutting by use of rotating axially moving tool with control means energized in response to activator stimulated by condition sensor to control infeed
- Y10T408/172—Responsive to Tool
Definitions
- the invention relates to a device for machining objects with an elongate tool rotating about its longitudinal axis, which has a shaft that can be coupled to a drive unit and a cutting head connected to the shaft.
- the invention is based on the object of developing a machining device of the type specified at the outset, which is of simple construction and works stably and vibration-free even with long tool lengths.
- the solution according to the invention is based above all on the idea that between the shaft and the cutting head there is arranged a sleeve which is preferably coaxial to the tool axis and which is connected at one end to the cutting head in a rotationally and displaceably fixed manner and at the other End carries the shaft.
- a sleeve which is preferably coaxial to the tool axis and which is connected at one end to the cutting head in a rotationally and displaceably fixed manner and at the other End carries the shaft.
- the cutting head and / or the shaft can be detachably connected to the sleeve by means of a screw, snap-in or bayonet connection. In principle, it is possible to also form the shaft on the sleeve.
- a pull rod which preferably penetrates centrally in the longitudinal direction, one end of which can be connected to the cutting head which is non-rotatably supported on one end of the sleeve and at the other end an axially adjustable clamping member which acts against the end of the sleeve opposite the cutting head while clamping the cutting head directly or indirectly via the shaft and is preferably designed as a clamping nut is arranged.
- a further preferred embodiment of the invention provides for the free space in the sleeve to be used as a discharge channel for the chips generated during the cutting work.
- at least one chip entry opening communicating with the inside of the sleeve can be provided in the cutting head.
- At least one feed channel extending to the cutting head is provided in the sleeve, via which a fluid can be guided under pressure to the processing location in front of the cutting head.
- the pull rod itself is preferably hollow. If the device is used for cutting work when inserting or replacing a prosthesis in human bone tissue, an antiseptic agent can also be added to the fluid so that the injuries to the bone tissue or the bone do not lead to inflammation.
- the feed channel can be acted upon by a fluid, preferably gel-like suspension, with the chips that arise at the processing site.
- a fluid preferably gel-like suspension
- the sleeve contains two feed channels extending to the cutting head, one of which can be blown with air and the other with a cooling lubricant.
- the cooling lubricant can be atomized at the outlet point by the blown air or mixed with it to improve chip evacuation.
- An optical waveguide leading to an observation or illumination optics on the cutting head side which enables direct optical monitoring of the processing point, can also be passed in the cavity of the pull rod or the sleeve.
- the pull rod can be provided with at least two longitudinal ribs projecting radially up to the inner surface of the sleeve.
- the cutting head can be designed as a drill head, milling head, grindstone, lapping stone, reamer or honing tool.
- a further preferred embodiment of the invention provides that the sleeve can be connected to a suction and rinsing device via the shaft.
- the shaft has at least one suction or supply channel which can communicate with the interior of the sleeve and / or with the feed channel and which can be connected to the suction and rinsing device.
- the cooling lubricant it cannot be prevented that the cooling lubricant also flows around the outside of the sleeve.
- the sleeve advantageously extends through a guide ring which can be placed stationary on the workpiece and which is sealed against the workpiece and / or the guide sleeve.
- the guide ring can be provided with at least one opening that can be connected to a suction channel.
- the guide ring can also contain an opening for the supply of a cooling lubricant, while the space between the workpiece and the sleeve communicates with the chip removal channel arranged in the sleeve via at least one chip channel arranged in the cutting head.
- a flexible drive shaft is arranged between the sleeve end opposite the cutting head and the shaft, which can contain supply and / or discharge channels communicating with the inside of the sleeve.
- the sleeve extends through a support bearing that can be anchored to the workpiece or inside a workpiece recess
- the anchoring elements such as knobs, claws, suction cups, spreading elements, holding magnets, clamping or greasing means that can be fixedly connected to the workpiece contains and which can be provided with a guide bushing which can be pivoted transversely to the sleeve axis for the sleeve.
- the anchoring members can be pressurized from the outside.
- the support bearing is captively connected to the sleeve.
- the support bearing can be provided with openings for the passage of cooling lubricant and / or chips.
- the drive unit according to the invention is expediently hand-held and can contain an electrically, hydraulically or pneumatically driven motor.
- the cutting head can at least partially consist of cutting steel, hard metal, ceramic or diamond or can be coated with such a material.
- La is a side view of a modular tool with sleeve shaft
- FIG. 1b the individual parts of the tool shown in FIG. 1a in the disassembled state
- FIG. 2 shows a partially sectioned side view of the tool combined with a two-channel suction and supply device
- 3a shows a partially sectioned side view of the tool combined with a three-channel suction and supply device
- FIG. 3b and c show a section through the sleeve along the section line III-III of FIG. 3a for two embodiment variants;
- FIG. 4 shows a partially sectioned side view of the tool combined with a suction and supply device with a flexible drive shaft arranged between the sleeve and the shaft and a support bearing that can be inserted into a tool recess;
- FIG. 5a to d show the support bearing according to FIG. 4 with various locking members in a partially sectioned illustration.
- the devices shown in the drawing are intended for cutting work on workpieces in the area of difficult to access machining points, in particular in deep recesses or cavities of an object or workpiece.
- the device essentially consists of an elongated tool 10 rotating about its longitudinal axis, which has a shaft 14 which can be coupled to a drive unit 12 and a cutting head which is arranged at an axial distance from the shaft and is connected to the shaft 14 16 has.
- a two-part cutting head 16 consisting of a drilling head 16 'and a milling head 16'', is provided, which have cutting edges S and can be connected to one another at an axial separation point 18 in a positive and non-positive manner.
- the shaft 14 can be connected to the cutting head 16 in a positive and non-positive manner via an elongated sleeve 20 with the aid of a tensioning device consisting of a pull rod 22 and a tension nut 24.
- the sleeve 20 is provided on its lower end in FIGS. 1 a and b with a plurality of latching recesses 26, into which the cutting head 16 engages in a form-fitting manner with complementary latching projections 28.
- the pull rod 22 is provided at one end with an external thread 30 with which it can be screwed into a complementary internal thread in the drill head 16 '.
- the pull rod 22 is provided with an external thread 32, onto which the clamping nut 24 with its internal thread 34 can be screwed.
- the clamping nut 24 runs with its shoulder 36 on the front edge 38 of the hollow shaft 14, which in turn engages with two radially opposite bolts 37 in corresponding recesses 39 in the sleeve 20 in a form-fitting manner.
- the tool 10 is assembled by placing the sleeve 20 on the cutting head 16 consisting of the drill head 16 'and milling head 16''and the hollow shaft 14 is plugged onto the other end of the sleeve 20. Then the pull rod 22 is pushed through the shaft 14 and the sleeve 20 and screwed with its external thread 30 to the cutting head 16. Finally, the clamping nut 24 is screwed onto the thread 32 of the pull rod 22 and screwed against the end edge 38 of the shaft 14, so that the sleeve 20 and the shaft 14 are clamped non-positively between the cutting head 16 and the clamping nut 24. *
- a one-piece cutting head can also be used, which can be designed as a drilling head, milling head, grindstone, lapping stone, reaming or honing tool and which, depending on the consistency of the workpiece to be machined, consists of cutting steel, hard metal, ceramic or diamond or can be coated with such a material.
- the pull rod 22 is suitably hollow.
- the cavity 40 of the pull rod 22 is expediently designed as a feed channel for a cooling lubricant or for blown air, which communicates with a branch channel 42 on the machining side of the drill head 16 '. If a fluid is pressed through the cavity 40 of the pull rod 22, it emerges from the mouth of the branch channel 42, so that the surroundings of the machining location 44 in the workpiece 76 are cooled.
- a branch channel is Distinguished if the cooling lubricant can reach the peripheral cutting edges directly from the open end of the pull rod 22. However, a blind cover can also be provided there, which only allows the cooling lubricant to escape in the area of the cutting edges.
- the tool 10 described above can be clamped into the chuck of a drive unit 12, for example hand-held, with a drive pin 46 protruding beyond the shaft 14 and in the exemplary embodiment shown as a polygonal and latching pin.
- a suction and rinsing device 50 is additionally provided, through which the tool 10 reaches through with its shaft 14.
- the chip removal takes place through the cavity 52 of the sleeve 20, which on the side of the cutting head 16 via the chip entry openings 54 with the processing location 44 and the windows 56 in the hollow shaft 14 and a channel 58 in FIG Suction and flushing device 50 communicates with a suction connection 60.
- the free space 62 above the clamping nut 24 is connected to the cavity 40 of the pull rod 22 and can be acted upon by a cooling fluid via the flushing connection 64 and a flushing channel 66, which reaches the machining location 44 via the hollow space of the pull rod 22.
- the cavity 52 of the sleeve 20 is divided into two partial spaces 52 ′, 52 ′′ by partition walls 68, which also have separate windows 56 ′, 56 ′′ and channels 58 ′, 58 ′′ various connections 60 ', 60''of the suction and rinsing device 50 communicate.
- One of the two sub-spaces 52 ' can be used for chip removal and the other sub-space 52''for supplying a fluid, for example blown air.
- the exemplary embodiment according to FIG. 4 differs from the exemplary embodiments according to FIGS. 2 and 3 in that, in addition, a hollow, flexible drive shaft 70 is arranged between the sleeve 20 and the shaft 14, which also makes it possible for the machining device to be used in processing locations 44 which are difficult to access.
- the flexible drive shaft is non-rotatably and tightly detachably coupled to the sleeve 20 and the shaft 14 at the coupling points 72, 74.
- the chips produced at the processing location 44 can be extracted via the sleeve 20, the cavity of the drive shaft 70 and the shaft 14 with the aid of the suction and rinsing device 50.
- the flexible drive shaft 70 contains a flexible supply line, not shown, for a cooling lubricant supplied via the flushing connection 64 of the suction and flushing device 50.
- the sleeve 20 is rotatably guided through a guide ring 78 which can be placed stationary on the workpiece 76.
- the guide ring is each with a seal 80, 82- probably sealed against the workpiece 76 and against the sleeve 20 of the tool 10.
- the guide ring 78 is provided with at least one opening 84 communicating with the processing location, through which either chips 85 can be suctioned off or detergent can be supplied.
- the sleeve 20 can be guided through a support bearing 88 arranged in the interior of the workpiece recess 86.
- the support bearing has a guide bush 90 for the sleeve, which can be pivoted transversely to the sleeve axis, and openings 92 for chip removal or the coolant supply.
- the support bearing 88 can be locked on the workpiece 76 in various ways.
- locking means 94 there are, for example, knobs or suction pads, possibly with a vacuum connection (FIG. 5a), claws (FIG. 5b), holding magnets (FIG. 5c) and a clamping device (FIG. 5d).
- the invention relates to a device for machining workpieces 76 or objects, with an elongated workpiece rotating about its longitudinal axis. 10, which has a shaft 14 which can be coupled to a drive unit 48 and a cutting head 16 which is connected to the shaft 14.
- a sleeve 20 extending between the shaft 14 and the cutting head 16 is proposed according to the invention, which rotates at one end with the cutting head 16 and is connected fixedly and carries the shaft 14 at its other end.
- the tool can be clamped in the chuck of a hand-held drive unit, whereby a suction and rinsing device 50 is expediently interposed, with which the chips produced during machining can be sucked off via the cavity of the sleeve 20 and cooling fluid can be pressed to the machining location 44.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Drilling Tools (AREA)
- Drilling And Boring (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8529990A JPH11504572A (ja) | 1995-04-07 | 1996-04-04 | 切削作業装置 |
US08/930,785 US5971988A (en) | 1995-04-07 | 1996-04-04 | Device for chip removing machining |
EP96910952A EP0819034A1 (de) | 1995-04-07 | 1996-04-04 | Vorrichtung zum spanabhebenden arbeiten |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19513305 | 1995-04-07 | ||
DE19513305.6 | 1995-04-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996031307A1 true WO1996031307A1 (de) | 1996-10-10 |
Family
ID=7759203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1996/001471 WO1996031307A1 (de) | 1995-04-07 | 1996-04-04 | Vorrichtung zum spanabhebenden arbeiten |
Country Status (5)
Country | Link |
---|---|
US (1) | US5971988A (de) |
EP (1) | EP0819034A1 (de) |
JP (1) | JPH11504572A (de) |
DE (1) | DE19613772A1 (de) |
WO (1) | WO1996031307A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6332886B1 (en) | 1999-02-03 | 2001-12-25 | Synthes (Usa) | Surgical reamer and method of using same |
US6783532B2 (en) | 1999-02-02 | 2004-08-31 | Synthes (Usa) | Device for removing bone tissue |
DE102018206543A1 (de) * | 2018-04-27 | 2019-10-31 | Audi Ag | Gewindebohr-Werkzeug und Verfahren zur Erzeugung einer Gewindebohrung |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19928839B4 (de) * | 1999-06-24 | 2005-02-17 | Actech Gmbh Advanced Casting Technologies Giessereitechnologie | Spindeladapter für eine stationäre Werkzeugmaschine |
FR2822739B1 (fr) * | 2001-03-07 | 2003-08-01 | Renault Automation Comau | Outil de coupe, electrobroche et machine-outil adoptant un tel outil de coupe |
US6783533B2 (en) | 2001-11-21 | 2004-08-31 | Sythes Ag Chur | Attachable/detachable reaming head for surgical reamer |
JP2003340631A (ja) | 2002-05-17 | 2003-12-02 | Guehring Joerg | ボーリング孔のバリを取るための工具、装置、及びその方法 |
US20070055282A1 (en) * | 2003-03-31 | 2007-03-08 | The Cleveland Clinic Foundation | Apparatus and method for harvesting bone marrow |
WO2004090111A2 (en) * | 2003-03-31 | 2004-10-21 | The Cleveland Clinic Foundation | Apparatus and method for harvesting bone marrow |
US6897628B2 (en) * | 2003-05-16 | 2005-05-24 | Sulphco, Inc. | High-power ultrasound generator and use in chemical reactions |
KR100683943B1 (ko) * | 2004-10-29 | 2007-02-15 | 비젼이노텍(주) | 복합재료를 이용한 정밀가공용 공구 |
WO2007134989A1 (fr) * | 2006-05-22 | 2007-11-29 | Societe De Technologie Michelin | Dispositif et methode de percage de produits en caoutchouc |
US7727236B2 (en) * | 2006-05-23 | 2010-06-01 | Ebi, Llc | Instrumentation for fixation devices |
DE202011050277U1 (de) * | 2011-05-30 | 2012-07-04 | Gerhard Bockholt | Bohrwerkzeug |
FR3031684B1 (fr) * | 2015-01-16 | 2017-01-27 | Gerflor | Dispositif de retention des poussieres issues d'une operation de percage |
CN108972037A (zh) * | 2018-09-26 | 2018-12-11 | 哈尔滨理工大学 | 一种cfrp加工用高效密封负压可视吸气式内排屑刀柄 |
CN109770994B (zh) * | 2019-03-12 | 2021-04-13 | 杭州华移技术有限公司 | 一种全自动骨科钻骨、注水、抽水一体装置 |
CN118417937B (zh) * | 2024-07-03 | 2024-08-30 | 常州奥旋重型轴承有限公司 | 一种回转支承滚道加工设备及其加工工艺 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE848140C (de) * | 1942-11-07 | 1952-09-01 | Karl Dipl-Ing Beisner | Bohrwerkzeug zum Bohren von insbesondere langen Bohrloechern |
US2835023A (en) * | 1954-08-31 | 1958-05-20 | Martin E Steeves | Tool holders |
GB968745A (en) * | 1962-06-05 | 1964-09-02 | Wickman Ltd | Rotary drilling bits |
EP0085354A2 (de) * | 1982-01-30 | 1983-08-10 | TBT Tiefbohrtechnik GmbH und Co. KG. | Tiefbohrwerkzeug |
US4871286A (en) * | 1988-10-24 | 1989-10-03 | Gte Valenite Corporation | Grooving or threading tool |
EP0508152A2 (de) * | 1991-03-13 | 1992-10-14 | Mitsubishi Materials Corporation | Schneidwerkzeug |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2907913C2 (de) * | 1979-03-01 | 1983-05-19 | Dornier Gmbh, 7990 Friedrichshafen | Druckluftbetriebene Handbohrmaschine |
-
1996
- 1996-04-04 WO PCT/EP1996/001471 patent/WO1996031307A1/de not_active Application Discontinuation
- 1996-04-04 JP JP8529990A patent/JPH11504572A/ja active Pending
- 1996-04-04 DE DE19613772A patent/DE19613772A1/de not_active Withdrawn
- 1996-04-04 US US08/930,785 patent/US5971988A/en not_active Expired - Fee Related
- 1996-04-04 EP EP96910952A patent/EP0819034A1/de not_active Ceased
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE848140C (de) * | 1942-11-07 | 1952-09-01 | Karl Dipl-Ing Beisner | Bohrwerkzeug zum Bohren von insbesondere langen Bohrloechern |
US2835023A (en) * | 1954-08-31 | 1958-05-20 | Martin E Steeves | Tool holders |
GB968745A (en) * | 1962-06-05 | 1964-09-02 | Wickman Ltd | Rotary drilling bits |
EP0085354A2 (de) * | 1982-01-30 | 1983-08-10 | TBT Tiefbohrtechnik GmbH und Co. KG. | Tiefbohrwerkzeug |
US4871286A (en) * | 1988-10-24 | 1989-10-03 | Gte Valenite Corporation | Grooving or threading tool |
EP0508152A2 (de) * | 1991-03-13 | 1992-10-14 | Mitsubishi Materials Corporation | Schneidwerkzeug |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6783532B2 (en) | 1999-02-02 | 2004-08-31 | Synthes (Usa) | Device for removing bone tissue |
US6332886B1 (en) | 1999-02-03 | 2001-12-25 | Synthes (Usa) | Surgical reamer and method of using same |
DE102018206543A1 (de) * | 2018-04-27 | 2019-10-31 | Audi Ag | Gewindebohr-Werkzeug und Verfahren zur Erzeugung einer Gewindebohrung |
DE102018206543B4 (de) | 2018-04-27 | 2021-08-12 | Audi Ag | Gewindebohr-Werkzeug und Verfahren zur Erzeugung einer Gewindebohrung |
Also Published As
Publication number | Publication date |
---|---|
DE19613772A1 (de) | 1996-10-24 |
EP0819034A1 (de) | 1998-01-21 |
JPH11504572A (ja) | 1999-04-27 |
US5971988A (en) | 1999-10-26 |
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