EP3781341A1 - Werkzeugträger - Google Patents
WerkzeugträgerInfo
- Publication number
- EP3781341A1 EP3781341A1 EP19715135.0A EP19715135A EP3781341A1 EP 3781341 A1 EP3781341 A1 EP 3781341A1 EP 19715135 A EP19715135 A EP 19715135A EP 3781341 A1 EP3781341 A1 EP 3781341A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- tool carrier
- depressions
- axial
- carrier
- 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.)
- Pending
Links
- 230000004323 axial length Effects 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 description 6
- 238000003754 machining Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000003801 milling Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
- B23B—TURNING; BORING
- B23B2231/00—Details of chucks, toolholder shanks or tool shanks
- B23B2231/02—Features of shanks of tools not relating to the operation performed by the tool
- B23B2231/0208—Bores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2231/00—Details of chucks, toolholder shanks or tool shanks
- B23B2231/02—Features of shanks of tools not relating to the operation performed by the tool
- B23B2231/0216—Overall cross sectional shape of the shank
- B23B2231/0244—Special forms not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2231/00—Details of chucks, toolholder shanks or tool shanks
- B23B2231/02—Features of shanks of tools not relating to the operation performed by the tool
- B23B2231/026—Grooves
- B23B2231/0268—Radial grooves
Definitions
- the present invention relates to tool carriers with a tool area and a
- a tool clamp which has the task to fix the tool after insertion.
- the robust design of the disc spring clamp is still a frequently used system.
- the tool is released by means of a hydraulic or pneumatic release unit, which presses against the spring force at standstill and thereby releases the tool.
- the tool interface directly influences the performance and quality of the machining process.
- the machining forces act as longitudinal and lateral forces as well as bending and torsional moments on the tool interface.
- the amount of torsional moment is determined by the relative radial position between the tool cutting edge and the central axis of the tool cutting point and the division of the cutting force in their components.
- the steady increase in spindle power leads to ever higher machining forces and consequently higher loads on the tool interfaces used.
- the tool cutting point is always located directly in the power flow during machining and should both have a high rigidity and enable a quick tool change in order to keep the non-productive times low.
- the present invention seeks to further develop a tool carrier of the generic type such that it is particularly improved in terms of its load-bearing behavior, without having to accept losses in terms of its other technical properties and qualities, the compatibility must be maintained in accordance with the relevant standards.
- the technical solution is that the tool interface area sections having non-circular cross-section In this way, significant advantages are achieved.
- clamping the interface area is drawn into the carrier, which leads to the flow of material.
- the possibility of elastic deformation is promoted and promoted. According to the invention, this takes place in that at least one depression is formed on the mantle surface in the tool interface region of the tool carrier. It has been shown that thereby the full contact between the tool holder and tool interface is interrupted and material flow spaces are created.
- depressions are clearly defined with regard to their radial penetration depth into the mantle surface. The same applies to their axial extent in the axial direction of the mantle surface as well as in their length in the circumference of the mantle surface.
- the depressions preferably represent a jump-free, clearly defined depression area.
- the length along the circumference of the mantle surface is defined by the midpoint angle.
- depressions have all the same Mitel Vietnamese according to an advantageous proposal of the invention. Moreover, they are distant from each other at the same center point angle. Of course, the center-angles of the expansion and the center-point angles of the distances are different from each other. In all corresponding systems acted upon by torsion and bending, transfer flanks occur in the rotational sense, so that intervening depressions running, for example, over the entire axial length provide sufficient receiving spaces for the flow of material.
- corresponding tool interfaces are segmented in the axial direction, that is to say they have regions of different cylindrical or conical design. In these segments, the depressions are correspondingly arranged uniformly, so that different axial regions with non-circular cross section are formed in the different planes.
- the invention provides a solution that can be implemented with little technical effort in order to increase the effectiveness of the use of corresponding tool carriers.
- the circumferential surfaces which are designed to be rotationally symmetrical, can be machined in a non-circular manner in order to produce precisely positioned, exact, and depth-clear depressions in a very fast turning process.
- FIG. 1 shows a representation of a further developed according to the invention tool carrier according to the HSK system.
- Fig. 2 is an illustration of an inventively further developed tool carrier according to the SK system.
- FIG. 1 shows a conventional tool carrier 1 according to the HSK system, which has an interface region 2 and a tool carrier region 3.
- the tool carrier area 3 is indicated only to the cutting line and otherwise standard.
- the inner curves show the edges 4 for engaging behind and pulling the tool carrier into the tool holder of a machine tool and the like.
- FIG. 2 shows, correspondingly, the tool carrier 10 according to the SK system with the contact area 11 and the carrier area 12,
- the respective right representations are bottom views of the interface region 2 and 11. They show that in deviation from the circular formation in the mantle surface depressions 5 and 6 or 13, 14 and 15 are formed.
- the individual axial stages each contain a non-circular cross-section which can be produced, for example, by non-circular turning.
- This non-circular cross-section causes non-contact areas to be formed in the depressions between the tool interface and the tool holder, which allow a sufficient flow of material under load.
- the described embodiments are illustrative only and not limiting. By selecting suitable non-circular shapes, notch effects can be avoided.
- the number of sinks is just as variable as the depth.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Milling Processes (AREA)
- Gripping On Spindles (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18167669.3A EP3556494A1 (de) | 2018-04-17 | 2018-04-17 | Werkzeugträger |
PCT/EP2019/058976 WO2019201681A1 (de) | 2018-04-17 | 2019-04-09 | Werkzeugträger |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3781341A1 true EP3781341A1 (de) | 2021-02-24 |
Family
ID=62017192
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18167669.3A Withdrawn EP3556494A1 (de) | 2018-04-17 | 2018-04-17 | Werkzeugträger |
EP19715135.0A Pending EP3781341A1 (de) | 2018-04-17 | 2019-04-09 | Werkzeugträger |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18167669.3A Withdrawn EP3556494A1 (de) | 2018-04-17 | 2018-04-17 | Werkzeugträger |
Country Status (4)
Country | Link |
---|---|
US (1) | US20210170496A1 (de) |
EP (2) | EP3556494A1 (de) |
DE (1) | DE202019005551U1 (de) |
WO (1) | WO2019201681A1 (de) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD300152A7 (de) * | 1989-03-09 | 1992-05-27 | ��������@��������@����������@���k�� | Anordnung eines spannzapfens an einem werkzeughalter |
JPH03251302A (ja) * | 1990-02-28 | 1991-11-08 | Okuma Mach Works Ltd | 工作機械の工具 |
WO2001076815A1 (fr) * | 2000-04-10 | 2001-10-18 | Pascal Kabushiki Kaisha | Structure de montage de porte-outil |
US9669468B2 (en) * | 2013-12-19 | 2017-06-06 | Kennametal Inc. | Toolholder assembly |
DE102014101003B4 (de) * | 2014-01-28 | 2015-11-05 | Schenck Rotec Gmbh | Aufnahmevorrichtung für eine drehbare Spindel einer Auswuchtmaschine |
US20170043408A1 (en) * | 2015-08-13 | 2017-02-16 | Ching-Ting Chen | Cutter holder for a manual cutter-changing system |
-
2018
- 2018-04-17 EP EP18167669.3A patent/EP3556494A1/de not_active Withdrawn
-
2019
- 2019-04-09 US US17/048,270 patent/US20210170496A1/en not_active Abandoned
- 2019-04-09 WO PCT/EP2019/058976 patent/WO2019201681A1/de unknown
- 2019-04-09 EP EP19715135.0A patent/EP3781341A1/de active Pending
- 2019-04-09 DE DE202019005551.7U patent/DE202019005551U1/de active Active
Also Published As
Publication number | Publication date |
---|---|
EP3556494A1 (de) | 2019-10-23 |
WO2019201681A1 (de) | 2019-10-24 |
US20210170496A1 (en) | 2021-06-10 |
DE202019005551U1 (de) | 2021-03-26 |
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Legal Events
Date | Code | Title | Description |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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STAA | Information on the status of an ep patent application or granted ep patent |
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17P | Request for examination filed |
Effective date: 20201028 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NILES-SIMMONS-HEGENSCHEIDT GMBH |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: KOCHSIEK, ADOLF |
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GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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STAA | Information on the status of an ep patent application or granted ep patent |
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INTG | Intention to grant announced |
Effective date: 20231218 |