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DE10109990A1 - Computerized numerically controlled machine for drilling deep holes in material generating long turnings, with periodic advance interruption avoiding frequent removal to clear swarf from bore - Google Patents

Computerized numerically controlled machine for drilling deep holes in material generating long turnings, with periodic advance interruption avoiding frequent removal to clear swarf from bore

Info

Publication number
DE10109990A1
DE10109990A1 DE10109990A DE10109990A DE10109990A1 DE 10109990 A1 DE10109990 A1 DE 10109990A1 DE 10109990 A DE10109990 A DE 10109990A DE 10109990 A DE10109990 A DE 10109990A DE 10109990 A1 DE10109990 A1 DE 10109990A1
Authority
DE
Germany
Prior art keywords
feed
tool
bore
deep holes
numerically controlled
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.)
Granted
Application number
DE10109990A
Other languages
German (de)
Other versions
DE10109990B4 (en
Inventor
Felix Leeb
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE10109990A priority Critical patent/DE10109990B4/en
Publication of DE10109990A1 publication Critical patent/DE10109990A1/en
Application granted granted Critical
Publication of DE10109990B4 publication Critical patent/DE10109990B4/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • B23Q11/0042—Devices for removing chips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
    • B23B47/34—Arrangements for removing chips out of the holes made; Chip- breaking arrangements attached to the tool

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

Method for drilling deep holes in material that generates long turnings or swarf using a CNC (Computer Numeric Control) machine in which the tool advance to advance interruption occurs in the ratio 2 to 1, i.e. for each two drill bit rotations with a pushing force, there is one drill bit rotation without advance. The ratio can be adjusted for different drilling depths and for different material.

Description

Die Erfindung bezieht sich auf ein Verfahren zur problemlosen Herstellung von Bohrungen, v. a. bei langspanenden Materialien und großen Ausnehmungstiefen. Bei der Erstellung von Bohrungen in langspanende Materialien besteht derzeit das Problem, dass die Bohrspäne nicht brechen, wodurch sich dann diese um das Bohrwerkzeug wickeln. Dies führt zu einem Spänestau. Um dies zu verhindern, wird derzeit beim Bohrvorgang dieser ca. alle 5 mm Bohrtiefe unterbrochen. Dabei wird das Bohrwerkzeug jeweils auf den Startpunkt (gleich Ausgangspunkt) zurückgefahren um somit die Späne aus der Bohrung zu entfernen und v. a. auch die Späne vom Bohrwerkzeug zu entfernen. Dabei gelingt dies nicht immer, womit dies dann zusätzlich von einem Bedienungsmann durch einen Spänehacken unterstützt werden muss. Dieses Entspänungsverfahren wird auch derzeit bei der Erstellung von tiefen Bohrungen in fast allen Materialien angewendet.The invention relates to a method for the problem-free production of bores, v. a. with long-chipping materials and large recess depths. When creating Drilling in long-chipping materials currently has the problem that the drilling chips do not break, causing them to wrap around the drilling tool. This leads to one Chip congestion. To prevent this, the drilling process is currently carried out approximately every 5 mm Drilling depth interrupted. The drilling tool is always at the starting point (equal Starting point) to remove the chips from the hole and v. a. also remove the chips from the drilling tool. This does not always succeed with what this does then additionally supported by an operator with a chip chop got to. This relaxation process is also currently used when creating deep Holes applied in almost all materials.

Der Erfindung liegt die Aufgabe zugrunde, ein Bohrverfahren zu entwickeln, mit dem all diese Probleme gelöst werden können. Diese Aufgabe wird erfindungsgemäß im wesentlichen mit dem Verfahrensanspruch 1 gelöst. Weitere Verbesserungen in den Ansprüchen 2 und 3.The invention has for its object to develop a drilling method with which all of these Problems can be solved. This task is essentially with the invention solved the method claim 1. Further improvements in claims 2 and 3.

In erfindungsmäßiger Weise wird vorgeschlagen, ausgehend von einer Unterbrechung des Bohrvorganges diesen ca. alle zwei Umdrehungen zu wiederholen, wobei die Unterbrechung nur ca. 1 Werkzeugumdrehung beträgt. Dadurch werden nur kurze Späne erzeugt mit dem Vorteil, dass sich keine Späne um das Bohrwerkzeug wickeln können und auch diese durch innere Kühlmittelzufuhr (Emission oder auch nur Pressluft) dann prozesssicher vom jeweiligen Bohrungsgrund nach außen befördert werden. Dieses Verhältnis 2 : 1 ist auch abhängig vom zu bearbeitenden Material. D. h. es könnte auch das Verhältnis 1 : 0,5-1 : 1-­ 2 : 1,5-2,5 : 1-3 : 1-4 : 1 usw. zur Anwendung kommen. Dabei kann dieses Verhältnis auch noch auf die jeweilige zu bearbeitende Einsatztiefe abgestellt sein, d. h. im oberen Bereich der Bohrung z. B. ca. 3 : 1 im mittleren Bereich ca. 2 : 1 und im unteren Bereich ca. 1 : 1 (jeweilige Erfahrungswerte einsetzen). Dabei kann der Übergang zu diesen Werten auch fast stufenlos erfolgen (gleich immer der fortschreitenden Ausnehmungstiefe angepasst).In an inventive manner, it is proposed, starting from an interruption of the Repeat the drilling process approximately every two revolutions, with the interruption is only approx. 1 tool revolution. This means that only short chips are generated with the The advantage that no chips can wind around the drilling tool and through it too internal coolant supply (emission or only compressed air) then reliable from the respective bottom of the hole are conveyed to the outside. This ratio is 2: 1 too depending on the material to be processed. I.e. the ratio could also be 1: 0.5-1: 1- 2: 1.5-2.5: 1-3: 1-4: 1 etc. are used. This relationship can also still be geared to the respective depth of use to be processed, d. H. in the upper area the bore z. B. approx. 3: 1 in the middle area approx. 2: 1 and in the lower area approx. 1: 1 (use respective empirical values). The transition to these values can also be almost steplessly (always adjusted to the progressive recess depth).

Diese Erfindung wird anhand einer Beispielbeschreibung vorgestellt.
Werkstoff St. 37
Werkzeug dreischneidige M-Schneide
Durchmesser 25 mm
Schnittgeschwindigkeit 157 m
Drehzahl 2000
Vorschub pro Umdrehung 0,36 mm → Vorschub/min von 0,36 × 2000 = 720 mm abzüglich 1/3 wg. Vorschubabschaltung im Verhältnis 2 : 1 → 480 mm Vorschub/minThis invention is presented based on an example description.
Material St. 37
Tool with three-edged M cutting edge
Diameter 25 mm
Cutting speed 157 m
Speed 2000
Feed per revolution 0.36 mm → Feed / min of 0.36 × 2000 = 720 mm, less 1/3 of wg. Feed cut-off in a ratio of 2: 1 → 480 mm feed / min

Diese Werte zeitlich übertragen können mit dem Auge nicht wahrgenommen werden, da die
Zeit der Vorschubabschaltung bei diesem Beispiel nur 0,03 sec beträgt.These values cannot be perceived by the eye because the
Feed cut-off time in this example is only 0.03 sec.

Claims (3)

1. Verfahren zur Herstellung von Bohrungen v. a. bei langspanenden Materialien und großen Ausnehmungstiefen mittels eines drehangetriebenen Bohrwerkzeuges auf CNC gesteuerten Maschinen dadurch gekennzeichnet, dass der Werkzeugvorschub zur Vorschubunterbrechung im Verhältnis von ca. 2 : 1 abläuft, d. h. ca. zwei Werkzeugumdrehungen mit Vorschub und anschl. ca. 1 Werkzeugumdrehung ohne Vorschub (intervalles Bohrverfahren).1. A method for producing bores, particularly in the case of long-chipping materials and large recess depths, using a rotary driven drilling tool on CNC-controlled machines, characterized in that the tool feed for feed interruption takes place in a ratio of approx. 2: 1, ie approx. Two tool rotations with feed and then. approx. 1 tool revolution without feed (interval drilling process). 2. Verfahren zur Herstellung von Bohrungen nach Anspruch 1 dadurch gekennzeichnet, dass das Verhältnis Werkzeugvorschub zu Vorschubunterbrechung auch ganz andere Werte aufweisen kann.2. A method for producing bores according to claim 1, characterized in that the ratio of tool feed to feed interruption is also complete can have other values. 3. Verfahren zur Herstellung von Bohrungen nach Anspruch 1-2 dadurch gekennzeichnet, dass das Verhältnis Werkzeugvorschub zu Vorschubunterbrechung auf die jeweilige Einsatztiefe als auch auf das zu bearbeitenden Material angepaßt ist.3. A method for producing holes according to claim 1-2 thereby characterized that the ratio of tool feed to feed interruption adapted to the respective depth of use as well as to the material to be processed is.
DE10109990A 2001-03-02 2001-03-02 Method for easily producing holes, v.a. for long-chipping materials and large recess depths Expired - Fee Related DE10109990B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10109990A DE10109990B4 (en) 2001-03-02 2001-03-02 Method for easily producing holes, v.a. for long-chipping materials and large recess depths

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10109990A DE10109990B4 (en) 2001-03-02 2001-03-02 Method for easily producing holes, v.a. for long-chipping materials and large recess depths

Publications (2)

Publication Number Publication Date
DE10109990A1 true DE10109990A1 (en) 2002-09-19
DE10109990B4 DE10109990B4 (en) 2005-01-13

Family

ID=7676011

Family Applications (1)

Application Number Title Priority Date Filing Date
DE10109990A Expired - Fee Related DE10109990B4 (en) 2001-03-02 2001-03-02 Method for easily producing holes, v.a. for long-chipping materials and large recess depths

Country Status (1)

Country Link
DE (1) DE10109990B4 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10236802C1 (en) * 2002-08-10 2003-10-09 Felix Leeb Bore thread cutter, suitable for steel, has end cutting region with centering tip at around 140 degrees bounding cutting region at 160 degrees, cutting region at 45 degrees and chamfering region
DE10335020A1 (en) * 2003-07-24 2005-03-24 Topf, Ernst, Ing. Spindelpulsator
DE10334454B3 (en) * 2002-08-10 2005-05-12 Felix Leeb Bohrgewindefräser which is also suitable for use in steel
FR2890581A1 (en) * 2005-09-14 2007-03-16 Airbus France Sas DRILLING DEVICE

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6871221B2 (en) 2018-11-14 2021-05-12 ファナック株式会社 Numerical control device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3934237B2 (en) * 1998-02-02 2007-06-20 東芝機械株式会社 Drill drilling machine control device and drilling method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10236802C1 (en) * 2002-08-10 2003-10-09 Felix Leeb Bore thread cutter, suitable for steel, has end cutting region with centering tip at around 140 degrees bounding cutting region at 160 degrees, cutting region at 45 degrees and chamfering region
DE10334454B3 (en) * 2002-08-10 2005-05-12 Felix Leeb Bohrgewindefräser which is also suitable for use in steel
DE10335020A1 (en) * 2003-07-24 2005-03-24 Topf, Ernst, Ing. Spindelpulsator
FR2890581A1 (en) * 2005-09-14 2007-03-16 Airbus France Sas DRILLING DEVICE
WO2007031631A3 (en) * 2005-09-14 2007-06-07 Airbus France Boring device
US8292550B2 (en) 2005-09-14 2012-10-23 Airbus Operations Sas Boring device

Also Published As

Publication number Publication date
DE10109990B4 (en) 2005-01-13

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8339 Ceased/non-payment of the annual fee