WO2003076128A1 - Vorschubeinrichtung in teleskopbauweise für eine werkzeugmaschine - Google Patents
Vorschubeinrichtung in teleskopbauweise für eine werkzeugmaschine Download PDFInfo
- Publication number
- WO2003076128A1 WO2003076128A1 PCT/EP2003/001004 EP0301004W WO03076128A1 WO 2003076128 A1 WO2003076128 A1 WO 2003076128A1 EP 0301004 W EP0301004 W EP 0301004W WO 03076128 A1 WO03076128 A1 WO 03076128A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tube
- spindle
- inner tube
- threaded spindle
- fixed bearing
- Prior art date
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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
-
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/08—Protective coverings for parts of machine tools; Splash guards
Definitions
- the invention relates to a feed device in telescopic construction for a machine tool, with an outer tube, an inner tube inserted therein, referred to as an immersion tube and a threaded spindle, which has a fixed bearing at one end, via which it is rotatably supported in the outer tube and held axially , and which is surrounded over part of its length by the inner tube, a screw nut screwed onto the threaded spindle being firmly connected to the inner tube.
- a machine tool with feed devices designed as telescopic arms is known from the publication WO 97/45 230.
- the term articulated arm unit (GLAE) is also used for these telescopic feed axes. Ball or roller screws can be used.
- the associated threaded lockers! is driven.
- the invention is based on the object of creating a feed device which has a high degree of rigidity which is as uniform (constant) as possible over the stroke of the inner tube. Since in such feed devices for machine tools the immersion tube or inner tube generally completely surrounds the threaded spindle, a solution is to be found in which a non-positive connection is produced from the free spindle end to the fixed bearing of the spindle.
- a further tube which surrounds the threaded spindle and is referred to as a stretching tube, is inserted, which connects a second bearing for the threaded spindle to the fixed bearing arranged on the outer tube.
- the stretching tube can be provided with longitudinal slots for the passage of noses, via which the spindle nut is connected to the inner tube.
- the stretching tube establishes the flow of force from the second fixed bearing to the first fixed bearing arranged on the outer tube.
- the threaded spindle is thus firmly and firmly mounted.
- their rigidity along the stroke of the inner tube and thus the rigidity of the entire device becomes more uniform and higher.
- the fixed-fixed bearing allows a higher speed of the spindle, which in turn allows the use of a smaller pitch of the spindle. Due to the smaller pitch, the spindle nut is stiffer. This can further increase the rigidity of the system. Due to the fixed-fixed mounting of the spindle, the stiffness remains higher and more uniform over the entire stroke, the first bending-critical speed is increased, which enables smaller gradients with higher stiffness at the same travel speed. With gimbal final storage on this strut, the outer tube may not be necessary.
- the inner tube or immersion tube can be guided using ground-in guideways.
- Figure 1 shows a feed device according to the invention in a perspective cutaway representation
- Figure 2 is an exemplary diagram of the stiffness curve of two articulated arm units depending on the stroke.
- a feed device contains an outer tube 1, in which an inner tube 2 is inserted and is telescopically extendable. Extending the inner tube 2 causes a driven threaded spindle 3. This is inserted into the outer tube 1 and at the same time partially inserted into the inner tube 2 and rotatably supported at one end of the outer tube 1 in a first fixed bearing 4.
- the fixed bearing 4 is designed as an axial-radial bearing, so that the threaded spindle 3 cannot move in the longitudinal direction with respect to the outer tube 1.
- a second fixed bearing 5 for the threaded spindle 3 in the inner tube 2.
- the stretching tube 6 is arranged in the inner tube 2 and surrounds the threaded spindle 3, but maintains a spacing which is annular in cross section.
- a spindle nut 7 is screwed onto the threaded spindle 3. This is located between the threaded spindle 3 and the stretching tube 6.
- the spindle nut 7 is fastened with lugs 8 at one end of the inner tube 2.
- longitudinal slots 9 are arranged in the stretching tube 6, through which the lugs 8 protrude.
- FIG. 1 only one longitudinal slit 9 with a lug 8 can be seen, but two longitudinal slits 9 with lugs 8 lying opposite one another on the circumference of the stretching tube 6 are provided.
- Figure 2 shows a graph of the difference in the stiffness of two feed devices depending on the stroke of the respective inner tube 2 or dip tube compared to the fixed outer tube 1.
- the lower curve with the designation Tr-lf represents the stiffness of a previously known feed device without a second Fixed bearing, while the upper curve with the designation Tr-ff represents the rigidity of a feed device according to the invention with the second fixed bearing 5.
- the designation Tr refers to the immersion tube, I to floating bearings and f to fixed bearings.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003206812A AU2003206812A1 (en) | 2002-03-13 | 2003-02-01 | Telescopic feeder device for a machine tool |
DE10391374T DE10391374D2 (de) | 2002-03-13 | 2003-02-01 | Vorschubeinrichtung für eine Werkzeugmaschine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002110922 DE10210922A1 (de) | 2002-03-13 | 2002-03-13 | Vorschubeinrichtung für eine Werkzeugmaschine |
DE10210922.2 | 2002-03-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003076128A1 true WO2003076128A1 (de) | 2003-09-18 |
Family
ID=27797728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/001004 WO2003076128A1 (de) | 2002-03-13 | 2003-02-01 | Vorschubeinrichtung in teleskopbauweise für eine werkzeugmaschine |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2003206812A1 (de) |
DE (2) | DE10210922A1 (de) |
WO (1) | WO2003076128A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1955807A1 (de) * | 2007-02-08 | 2008-08-13 | Robert Bosch GmbH | Linearmodul mit Spindeltriebvorrichtung |
CN106736627A (zh) * | 2017-01-21 | 2017-05-31 | 赵世野 | 一种加工水下弧状滑动轴承环的设备 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0534585A2 (de) * | 1991-08-26 | 1993-03-31 | The Ingersoll Milling Machine Company | Achtflächiger Werkzeugmaschinengestell |
WO1997045230A1 (de) * | 1996-05-29 | 1997-12-04 | INA Wälzlager Schaeffler oHG | Werkzeugmaschine |
US6402444B1 (en) * | 1999-04-29 | 2002-06-11 | Tsinghua University | Type of parallel machine tool frame driven by slider and extensible strut |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2519782A1 (de) * | 1975-05-02 | 1976-11-11 | Siemens Ag | Manipulator |
DE3910814A1 (de) * | 1989-04-04 | 1990-10-11 | Hasenclever Maschf Sms | Schraubgetriebene linearhubeinheit |
-
2002
- 2002-03-13 DE DE2002110922 patent/DE10210922A1/de not_active Withdrawn
-
2003
- 2003-02-01 AU AU2003206812A patent/AU2003206812A1/en not_active Abandoned
- 2003-02-01 WO PCT/EP2003/001004 patent/WO2003076128A1/de not_active Application Discontinuation
- 2003-02-01 DE DE10391374T patent/DE10391374D2/de not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0534585A2 (de) * | 1991-08-26 | 1993-03-31 | The Ingersoll Milling Machine Company | Achtflächiger Werkzeugmaschinengestell |
WO1997045230A1 (de) * | 1996-05-29 | 1997-12-04 | INA Wälzlager Schaeffler oHG | Werkzeugmaschine |
US6402444B1 (en) * | 1999-04-29 | 2002-06-11 | Tsinghua University | Type of parallel machine tool frame driven by slider and extensible strut |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1955807A1 (de) * | 2007-02-08 | 2008-08-13 | Robert Bosch GmbH | Linearmodul mit Spindeltriebvorrichtung |
CN106736627A (zh) * | 2017-01-21 | 2017-05-31 | 赵世野 | 一种加工水下弧状滑动轴承环的设备 |
Also Published As
Publication number | Publication date |
---|---|
DE10210922A1 (de) | 2003-10-02 |
DE10391374D2 (de) | 2005-02-24 |
AU2003206812A1 (en) | 2003-09-22 |
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