WO2012113621A1 - Porte-outil - Google Patents

Porte-outil Download PDF

Info

Publication number
WO2012113621A1
WO2012113621A1 PCT/EP2012/051630 EP2012051630W WO2012113621A1 WO 2012113621 A1 WO2012113621 A1 WO 2012113621A1 EP 2012051630 W EP2012051630 W EP 2012051630W WO 2012113621 A1 WO2012113621 A1 WO 2012113621A1
Authority
WO
WIPO (PCT)
Prior art keywords
bore
clamping
tool holder
conical
shaft
Prior art date
Application number
PCT/EP2012/051630
Other languages
German (de)
English (en)
Inventor
Peter TEMME
Original Assignee
Alfred Jäger 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 Alfred Jäger GmbH filed Critical Alfred Jäger GmbH
Publication of WO2012113621A1 publication Critical patent/WO2012113621A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/006—Conical shanks of tools
    • 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
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general

Definitions

  • the invention relates to a tool holder for releasably connecting a rotating tool with a drive spindle, with a shaft which is intended for insertion into a receiving bore of the drive spindle and having a conical shaft portion with a larger and a smaller end, a flange, the larger Adjacent the end of the conical shaft portion and to an end face of the drive spindle is pressed, and a clamping pin arranged at the smaller end of the conical shaft portion with a gripping end, which is intended to be gripped by a arranged in the receiving bore collet.
  • Tool holders of the specified type serve to interchangeably connect a rotating machining tool with the drive spindle moving the tool.
  • it is important that the axis of rotation of the tool is matched as accurately as possible with the axis of rotation of the spindle and that the tool is shaken in the axial and radial direction and is supported on the drive spindle so that high machining accuracy can be achieved.
  • a tool holder of the specified type in which the conical shaft portion has a central recess in which a ball spreading device is arranged, which has a spreader connected to the spigot.
  • the invention has for its object to provide an improved tool holder, which is suitable for high speed rotating drive spindles and allows small shaft diameter.
  • the shank of the tool holder has a clamping portion with a cylindrical outer surface, which adjoins the smaller end of the conical shaft portion and which contains a bore with a conical bore portion and that the chuck has a clamping portion , which is arranged axially movable in the bore of the clamping portion and cooperates with the conical bore portion such that by a the clamping pin relative to the shaft in the direction of its gripping end displacing tensile force an increase in the outer diameter of the clamping portion is effected.
  • the tool holder according to the invention has the advantage that the shaft is additionally tightened at its smaller end by the clamping portion with a defined radial force. In this way, an additional support and centering is achieved, which is insensitive to influences of very high speeds, since the tensioning pin continuously loading tensile force maintains the radial clamping of the clamping portion.
  • the tool holder according to the invention also has the advantage that fluctuations in the contact pressure of the conical shaft section due to manufacturing tolerances are largely compensated for the conical inner surface of the receiving bore of the drive spindle, so that even under unfavorable conditions, a vibration-stable fit of the tool holder in the drive spindle is ensured.
  • Another advantage of the design according to the invention is that it is suitable for the production of tool holders with a very small diameter and that even with very small diameters, a stable support and transmission of a relatively high torque is possible.
  • the clamping portion of the shaft may be slotted. This can be achieved in comparison to the axial tensile force acting on the chuck, a strong radial pressure. In addition, larger diameter differences between the clamping portion and the receiving bore of the drive spindle can be bridged.
  • the bore penetrates the shaft and the flange of the tool holder and that a tool holder is arranged in the bore, which forms an axial stop for the clamping journal with an end face facing the clamping pin.
  • This design of the tool holder is easy to manufacture and has the further advantage that the shank, the clamping portion and the flange can consist of one piece, since the clamping pin can be inserted through the front, the tool receiving end of the bore in the clamping portion.
  • the design is particularly suitable for the production of tool holders with a small outside diameter.
  • FIG. 1 shows a perspective view of a preferred embodiment of a
  • FIG. 2 shows a side view of the tool holder according to FIG. 1, partly in section,
  • FIG. 3 shows a cross section of the tool receiving end of a drive spindle with a tool holder according to the invention inserted in the drive spindle.
  • the tool holder 1 shown in Figures 1 and 2 consists essentially of a shaft 2, a flange 3, a clamping pin 4 and a tool holder 5.
  • the shaft 2 has a conical shaft portion 6, the larger end of the flange 3 is adjacent.
  • At the smaller end of the shaft portion 6 includes a clamping portion 7 with a cylindrical outer surface 8 at.
  • the shaft 2 and the flange 3 are jointly penetrated by a central bore 9.
  • the bore 9 has a conical bore section 10, the diameter of which decreases with increasing distance from the shaft section 6.
  • the smaller end of the conical bore portion 10 is connected by a first, cylindrical bore portion 1 1 and a second, slightly smaller cylindrical bore portion 12 with the end-side end face of the clamping portion 7.
  • the wall of the clamping portions 7 is provided with a plurality of axially extending slots 13 which facilitate radial deformation.
  • a conical clamping portion 14 which has the same taper as the conical bore portion 10 and rests with its conical outer surface on the conical inner surface of the bore portion 10.
  • the clamping portion 14 is formed at one end of the clamping pin 4. From there extends a cylindrical portion of the clamping pin 4 through the bore portions 1 1, 12 out of the clamping portion 7 and forms a gripping end 15 which is offset by an annular constriction.
  • the clamping portion 14 In the direction of the conical shaft portion 6, the clamping portion 14 is supported with an end face 16 on a sleeve portion 17 which is inserted into the bore 9 and which supports and centers the tool holder 5 in the shaft 2.
  • the tool holder 5 also has a mounting flange 18 which is permanently connected to the flange 3 by welding.
  • Figure 3 shows the trained for receiving a tool holder end of a motor spindle 20 for high-speed driving a rotating tool for machining.
  • Motor spindles of this type are also called high-frequency spindles or high-frequency spindles.
  • the motor spindle 20 has a drive spindle 21 which is provided with a continuous longitudinal bore 22. With a conically enlarged end, the longitudinal bore 22 forms a receiving bore 23 for a tool holder. 1
  • a quick release device with a clamping sleeve 24 and a tightening rod 25 is arranged axially displaceable.
  • the receiving bore 23 facing the end of the clamping sleeve 24 forms a collet 26th
  • a tool holder 1 of the embodiment shown in FIGS. 1 and 2 is located in the receiving bore 23.
  • the tool holder 1 lies with its conical shaft portion 6 evenly against the inner wall of the conical receiving bore 23 and extends with its cylindrical clamping portion 7 in a cylindrical part of the longitudinal bore 22 of the drive spindle 21 into it.
  • the collet 26 engages around the gripping end 15 of the Clamping pin 4 and engages with their clamping jaws in the annular recess of the clamping pin 4 a.
  • the pull rod 25 is loaded with a tensile force, which tends to pull it deeper into the longitudinal bore 22.
  • the tensile force is transmitted to the clamping sleeve 24 and from this via the collet 26 to the clamping pin 4.
  • the tool holder 1 is pulled so far into the receiving bore 23 until the flange 3 rests firmly with its contact surface on the end-side end face of the drive spindle 21.
  • the conical shaft portion 6 is drawn by a defined amount in the receiving bore 23 and thereby pressed firmly against the conical inner wall of the receiving bore 23.
  • the tensile force acting on the clamping pin 4 also causes a slight displacement of its clamping section 14 in the direction of force, as a result of which the clamping section 7 is expanded radially and pressed firmly against the wall of the longitudinal bore 22.
  • the pulling force exerted by the tightening rod 25 at the end of the tightening operation is maintained even during operation of the motor spindle and machining operations.
  • the clamping pin 4 can further widen the clamping section 7 under the effect of the tensile force, thereby giving way or loosening Seat of the tool holder 1 in the receiving bore 23 of the drive spindle 21 prevents.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Gripping On Spindles (AREA)

Abstract

L'invention concerne un porte-outil permettant de fixer de manière amovible un outil à une broche d'entraînement, lequel porte-outil comprend une tige (2) pouvant être introduite dans la broche d'entraînement et présentant une partie de tige conique (6) ayant une grande et une petite extrémité, une bride (3) adjacente à la petite extrémité de la partie de tige (6) et un tenon de serrage (4) sur la petite extrémité de la partie de tige (6) et comportant une extrémité de préhension (15) destinée à une pince de serrage. La tige (2) présente une partie blocage (7) comportant une surface extérieure cylindrique qui se raccorde à la petite extrémité de la partie de tige (6) et qui présente un orifice (9) comportant une partie orifice conique (10). Le tenon de serrage (54) présente une partie serrage (14) qui est agencée mobile axialement dans l'orifice (9) de la partie blocage (7) et qui coopère avec la partie orifice conique (10) de telle manière qu'une force de traction déplaçant le tenon de serrage par rapport à la tige (2) en direction de son extrémité de préhension (15) provoque une augmentation du diamètre extérieur de la partie blocage (7).
PCT/EP2012/051630 2011-02-22 2012-02-01 Porte-outil WO2012113621A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202011000400.7 2011-02-22
DE202011000400U DE202011000400U1 (de) 2011-02-22 2011-02-22 Werkzeughalter

Publications (1)

Publication Number Publication Date
WO2012113621A1 true WO2012113621A1 (fr) 2012-08-30

Family

ID=43927476

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/051630 WO2012113621A1 (fr) 2011-02-22 2012-02-01 Porte-outil

Country Status (2)

Country Link
DE (1) DE202011000400U1 (fr)
WO (1) WO2012113621A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102922329A (zh) * 2012-11-08 2013-02-13 无锡新宏泰电器科技股份有限公司 轴承加工用快速装夹夹具
WO2013053047A3 (fr) * 2011-10-13 2013-06-06 Macdonald Dettwiler & Associates Inc. Outil multifonctionnel d'entretien robotique
US9108747B2 (en) 2011-12-05 2015-08-18 Macdonald, Dettwiler And Associates Inc. Tool for accessing satellite fill/drain valves during propellant resupply
CN105127463A (zh) * 2015-08-27 2015-12-09 宁波川景誉机械科技发展有限公司 用于刀具夹持的刀柄结构
CN109014263A (zh) * 2018-08-15 2018-12-18 东方电气集团东方汽轮机有限公司 一种可调式过定位刀柄及其调节方法
US10226825B2 (en) 2016-11-20 2019-03-12 Charles Michael Berg Tool holding apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102303259A (zh) * 2011-08-22 2012-01-04 贵州航天新力铸锻有限责任公司 摩擦式自锁装夹切削锥形孔件的方法
CN115647404A (zh) * 2022-09-07 2023-01-31 超同步股份有限公司 主轴拉力增大装置、机床系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999020423A1 (fr) * 1997-10-20 1999-04-29 Lloyd Don R Porte-outil
EP1038619A2 (fr) * 1999-03-19 2000-09-27 Nikken Kosakusho Works, Ltd. Porte-outil

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07299614A (ja) 1994-05-10 1995-11-14 N T Tool Kk 工 具

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999020423A1 (fr) * 1997-10-20 1999-04-29 Lloyd Don R Porte-outil
EP1038619A2 (fr) * 1999-03-19 2000-09-27 Nikken Kosakusho Works, Ltd. Porte-outil

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013053047A3 (fr) * 2011-10-13 2013-06-06 Macdonald Dettwiler & Associates Inc. Outil multifonctionnel d'entretien robotique
JP2014528366A (ja) * 2011-10-13 2014-10-27 マクドナルド デットワイラー アンド アソシエイツ インコーポレーテッド ロボット修理多機能ツール
US9676096B2 (en) 2011-10-13 2017-06-13 Macdonald, Dettwiler And Associates Inc. Robotic servicing multifunctional tool
US9950424B2 (en) 2011-10-13 2018-04-24 Macdonald, Dettwiler And Associates Inc. Robotic servicing multifunctional tool
US10005180B2 (en) 2011-10-13 2018-06-26 Macdonald, Dettwiler And Associates Inc. Robotic servicing multifunctional tool
US9108747B2 (en) 2011-12-05 2015-08-18 Macdonald, Dettwiler And Associates Inc. Tool for accessing satellite fill/drain valves during propellant resupply
US9567111B2 (en) 2011-12-05 2017-02-14 Macdonald, Dettwiler And Associates System and tool for accessing satellite fill/drain valves during propellant resupply
US9688422B2 (en) 2011-12-05 2017-06-27 Macdonald, Dettwiler And Associates Inc. System and tool for accessing satellite fill/drain valves during propellant resupply
CN102922329A (zh) * 2012-11-08 2013-02-13 无锡新宏泰电器科技股份有限公司 轴承加工用快速装夹夹具
CN105127463A (zh) * 2015-08-27 2015-12-09 宁波川景誉机械科技发展有限公司 用于刀具夹持的刀柄结构
US10226825B2 (en) 2016-11-20 2019-03-12 Charles Michael Berg Tool holding apparatus
CN109014263A (zh) * 2018-08-15 2018-12-18 东方电气集团东方汽轮机有限公司 一种可调式过定位刀柄及其调节方法

Also Published As

Publication number Publication date
DE202011000400U1 (de) 2011-04-28

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