EP3833501A1 - Ziehsenker - Google Patents
ZiehsenkerInfo
- Publication number
- EP3833501A1 EP3833501A1 EP19749723.3A EP19749723A EP3833501A1 EP 3833501 A1 EP3833501 A1 EP 3833501A1 EP 19749723 A EP19749723 A EP 19749723A EP 3833501 A1 EP3833501 A1 EP 3833501A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reamer
- depth
- cutting edges
- countersink
- blind hole
- 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- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/10—Bits for countersinking
- B23B51/102—Back spot-facing or chamfering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/10—Bits for countersinking
- B23B51/104—Bits for countersinking with stops
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/02—Connections between shanks and removable cutting heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2260/00—Details of constructional elements
- B23B2260/004—Adjustable elements
Definitions
- the invention relates to a countersink for creating a blind hole.
- Draw countersinks are known in the prior art to be able to create precise blind holes. Are particularly suitable
- Draw countersink for creating blind holes whose axis is not aligned perpendicular to the surface of a component in which the blind hole is to be created.
- a guide hole is first created as a through-hole along the desired axis of the blind hole, through which a traction shank is then guided, at one end of which a reamer is fastened for the creation of the blind hole.
- the desired blind hole can be created by rotating and pulling the pull shaft on the side of the component opposite the blind hole to be created. While due to the use of a reamer a high precision with regard to the blind hole diameter can be created, a desired blind hole depth cannot be maintained precisely.
- the object of the present invention is to provide a tool with which blind holes can be created in difficult to access places with sufficient depth precision.
- the invention relates to a countersink for creating a blind hole comprising a reamer with a pull shank detachably connected on the side of the cutting edges of the reamer, the reamer having an adjustable depth limiter which surrounds the reamer in such a ring that the side of the reamer has cutting edges the depth of the blind hole to be created protrudes.
- the invention has recognized that in cases in which blind holes have to be made in parts of parts that are difficult to access, the use of drawing counters is basically conceivable. This applies in particular if the guide hole required for this is already available for other reasons, but often even if the corresponding through hole still has to be created. Due to the significantly smaller diameter of the guide bore compared to the blind hole to be created, the structural weakening of the component associated therewith is only slight and acceptable. If a through hole is present or created, the point for the blind hole to be drilled only has to be accessible to the extent that the reamer can be connected there with the shank guided through the through hole.
- known countersinks can be known from the prior art do not use it to create blind holes.
- the invention has recognized that the disadvantages of Ziehsen ker known from the prior art can be reduced by the adjustable depth limiter provided according to the invention in such a way that blind holes can also be created with sufficient precision with regard to the depth of the blind hole.
- the depth gauge is ring-shaped around the reamer, so that its cutting edges only protrude above the depth gauge by the desired blind hole depth. If a blind hole is created with the draw countersink according to the invention, when the set depth of the deep fen limiter is reached, it comes into contact with the component in the area surrounding the blind hole and thus limits the depth of the blind hole to be created.
- the reamer or a separate fastening element for the rotationally fixed connection of the reamer and tension shaft can have an external thread in a region removed from the cutting edges in a first embodiment variant, the depth limiter being designed as a sleeve with a matching internal thread. The depth of the blind hole to be created can then be adjusted by turning the depth gauge relative to the reamer.
- a lock nut In order to fix the depth gauge relative to the reamer or the fastening element in a desired position with regard to the depth of the blind hole to be created, a lock nut can be provided.
- the lock nut preferably engages in the same external thread as the depth gauge and is turned against the depth gauge to fix it.
- the fastening element has a cone seat for receiving a taper shank Reamer and a locking part arranged coaxially with the cone receptacle for optional interaction with a corresponding locking part of the tension shaft.
- the reamer le diglich must have a conical shaft on the side facing away from the cutting edges and an opening for carrying out the pull shaft, while the actual locking with the pull shaft and the depth limiter is arranged on the fastener.
- the reamer which is regularly made of high-strength materials, can be manufactured inexpensively due to the simplified design.
- the fastener can be made of non-high strength material, which also enables inexpensive manufacture. Any different reamers can optionally be used without the need for a separate fastening element.
- the reamer has a stop surface that extends from the side with the cutting edges and extends radially outwards
- the deep limiter has one or more annular spacers summarizes, whose inner diameter is smaller than the outer diameter of the stop surface and larger than the outer diameter of the reamer in the area of the cutting edges.
- a spacer can then be pushed over the cutting edges onto the reamer up to the stop surface in order to limit the depth of the blind hole to be created.
- a plurality of spacers, each with an identical thickness to be optionally pushed onto the reamer.
- the desired depth of the blind hole to be created can be set by a suitable choice of the spacer or the number of spacers. It is preferred if the depth limiter has a coating suitable for sliding, preferably made of polytetrafluoroethylene, or of a material suitable for sliding, preferably made of polytetrafluoroethylene, at the end of the cutter surrounding the reamer or the spacer arranged there. Corresponding design at the end of the depth limiter, which comes into contact with the component when the desired blind hole depth is reached, prevents damage to the component surface.
- Figure 1 a first embodiment of a die according to the Invention
- FIG. 2 a second exemplary embodiment of a drawing countersink according to the invention.
- Figure 3 a third embodiment of a countersink according to the Invention.
- Reamer 2 with cutting edges 3 at one end On the side with the cutting edges 3, a pull shaft 4 is inserted into the reamer 2 and there, inside with a lock 5 comprising detent elements 4 arranged on the pull shaft 4, as a locking element 6 and in the reamer 2 arranged depressions as another locking part 7 detachably fastened ,
- the train shaft 4 is guided through a through hole 92 in the component.
- the cutting edges 3 of the reamer 2 remove material from the outer material layer 91 of the component 90 so as to create a blind hole.
- the draw countersink 1 from FIG. 1 corresponds in structure and function to a draw countersink 1 known from the prior art.
- an adjustable depth limiter 10 is provided.
- the depth limiter 10 comprises an annular sleeve 11 made of polytetrafluoroethylene, which surrounds the reamer 2 in a ring, and which is connected at the end distant from the cutting edges 3 to a metal fastening ring 12 with an internal thread.
- the internal thread of the fastening ring 12 engages in an external thread 8 of the reamer 2 provided in an area removed from the cutting edges 3.
- the external thread 8 can be provided directly in the reamer 2 itself, or the reamer 2 is - as shown - permanently attached to a socket element 2 ', on which the external thread 8 is then arranged.
- the depth limiter 10 By turning the depth limiter 10 with respect to the reamer 2, the depth limiter 10 can be displaced with respect to the reamer 2 in the longitudinal axis, as a result of which the length by which the reamer 2 protrudes from the sleeve 11 of the depth limiter 10 and ultimately the depth of the sack to be created lochs determined, precisely adjusted.
- a lock nut 20 is provided, which can be braced with the depth limiter 10.
- the depth limiter 10 comes into contact with the outer material layer 91 of the component 90 and prevents the reamer 2 from penetrating further than desired into the component 90 and in particular into the further material layers. Since the depth gauge 10 is at the contact surface with the component 90 made of polytetrafluoroethylene, the surface of the construction part 90 is not damaged by the depth gauge.
- FIG. 2 shows a second exemplary embodiment of a draw countersink 1 according to the invention, which largely corresponds to the draw countersink from FIG. 1 in terms of its structure and mode of operation. Reference is therefore made to the above statements and only the differences between the two embodiments are discussed below.
- the reamer 2 has a taper shank on the side remote from the cutting edges 3, which engages in a cone receptacle 9 'of a fastening element 9. Furthermore, the pull shaft 4 is guided through the reamer 2 into the fastening element 9, where the lock 5 is also located.
- the interaction of the taper shank and the cone receptacle 9 ' creates a connection which is sufficiently non-rotatable to create a blind hole and which at the same time enables the reamer 2 to be replaced quickly and without tools by simply pulling it out of the cone receptacle 9'.
- the external thread 8 is arranged on the fastening element 9 and, in the manner described in connection with FIG. 1, interacts with the identical depth limiter 10 and the lock nut 20.
- FIG. 3 shows a third exemplary embodiment of a countersink 1 according to the invention, comprising a reamer 2 Cutting 3 and a pull shaft 4, which can be connected to each other in a known manner via a lock 5 and thus serve to provide blind holes.
- the spacers 13, 13 ' all have the same thickness, so that the length by which the reamer 2 protrudes above the depth limiter 10, and which ultimately determines the depth of the blind hole to be made, by suitable selection of the number of spacers 13, 13 'can be adjusted.
- the dance holder 13, 13 'can in principle be made of metal, but preferably at least the dance holder 13' coming into contact with the component 90 when using the die 1 is made of polytetrafluoroethylene. Damage to the surface of the component 90 by contact with the depth limiter 10 can thereby be avoided.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018119061.1A DE102018119061A1 (de) | 2018-08-06 | 2018-08-06 | Ziehsenker |
| PCT/EP2019/071019 WO2020030587A1 (de) | 2018-08-06 | 2019-08-05 | Ziehsenker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3833501A1 true EP3833501A1 (de) | 2021-06-16 |
Family
ID=67544257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19749723.3A Withdrawn EP3833501A1 (de) | 2018-08-06 | 2019-08-05 | Ziehsenker |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3833501A1 (de) |
| DE (1) | DE102018119061A1 (de) |
| WO (1) | WO2020030587A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2209668A1 (de) * | 1972-03-01 | 1973-09-06 | Uwe C Seefluth | Blechschaelbohrer |
| FR2268591A1 (en) * | 1974-04-29 | 1975-11-21 | Zahnradfabrik Friedrichshafen | Counter sink tool for workpiece spot facing - has drive and cutting force transmission by radial projections mounted on carrier |
| FR2310826A1 (fr) * | 1975-05-16 | 1976-12-10 | Dore Pierre | Appareil a chanfreiner, notamment a ebarber |
| DE2549153C3 (de) * | 1975-11-03 | 1978-12-21 | Altenloh, Brinck & Co, 5828 Ennepetal | Vorsatzgerät für Handbohrmaschinen zum Eindrehen von Schrauben |
| US5147164A (en) * | 1991-10-03 | 1992-09-15 | Fraver Paul C | Drill bit depth minder |
| US7070364B2 (en) * | 2003-03-10 | 2006-07-04 | Lockheed Martin Corporation | Reverse chamfer and countersink tool |
| US20070044291A1 (en) * | 2005-08-23 | 2007-03-01 | Paul Gertner | System and method for precisely matching a predrilling tool with an insert for insertion into a substrate |
| US10399151B2 (en) * | 2016-02-17 | 2019-09-03 | The Boeing Company | Methods of forming holes in a workpiece and associated systems |
| DE102016109309A1 (de) * | 2016-05-20 | 2017-11-23 | Gühring KG | Rückwärtssenkwerkzeug |
-
2018
- 2018-08-06 DE DE102018119061.1A patent/DE102018119061A1/de not_active Ceased
-
2019
- 2019-08-05 EP EP19749723.3A patent/EP3833501A1/de not_active Withdrawn
- 2019-08-05 WO PCT/EP2019/071019 patent/WO2020030587A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020030587A1 (de) | 2020-02-13 |
| DE102018119061A1 (de) | 2020-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2004113001A1 (de) | Schnittstelle zwischen zwei teilelementen eines werkzeugsystems | |
| EP2745966A1 (de) | Bohrkrone mit einem austauschbaren Schneidabschnitt | |
| EP2745965A1 (de) | Bohrkrone mit einem austauschbaren Schneidabschnitt | |
| DE3507817A1 (de) | Bohrer zur erzeugung einer hinterschneidung in einer bohrung | |
| DE1475240B1 (de) | Zweiteilige befestigungseinrichtung insbesondere fuer ver blendplatten | |
| EP3960963B1 (de) | Zentrierhülse und verfahren zur befestigung | |
| EP3387270B1 (de) | Befestigungselement | |
| DE202022101626U1 (de) | Vorrichtung zur Begrenzung der Eingriffstiefe eines Zerspanungswerkzeugs | |
| EP2865470A1 (de) | Bohrfutter | |
| EP3667107B1 (de) | Hülse zur weiterbildung einer schraube in eine distanzschraube, schraube mit einer solchen hülse und drehwerkzeug zum einschrauben der schraube | |
| DE102015115548A1 (de) | Stabmesserkopf | |
| DE102009012243A1 (de) | Stanzmutter | |
| EP2102509B1 (de) | Zuganker und damit zusammengespannte modulanordnung | |
| EP3833501A1 (de) | Ziehsenker | |
| DE69320330T2 (de) | Maueranker | |
| EP2110208B1 (de) | Teleskopstiel mit Arretiereinrichtung | |
| DE202015101365U1 (de) | Spannfutter | |
| DE102016123316B4 (de) | Werkzeug zum Schneiden eines Gewindes | |
| DE102007025745B4 (de) | Werkzeugsatz, Bohrer und Verfahren zum Ausbohren von defekten Glühkerzen | |
| EP3696553A1 (de) | Hohlnadel für einen probenpipettor | |
| EP3926185B1 (de) | Wandhalterung | |
| EP3336365A1 (de) | Einseitig geschlossene mutter, spreizanker mit dieser mutter und verfahren zum schrauben und festziehen der mutter | |
| DE3341180C2 (de) | Haushaltsschneidemaschine, insbesondere mit elektromotorischem Antrieb | |
| EP2577072B1 (de) | Verbindungsanordnung | |
| DE102017008428A1 (de) | Eindrehvorrichtung und Verfahren zum Eindrehen einer Gewindehülse in eine Bohrung |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20210128 |
|
| 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 |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20210928 |