WO1996019320A1 - Procede pour enfoncer des vis - Google Patents

Procede pour enfoncer des vis Download PDF

Info

Publication number
WO1996019320A1
WO1996019320A1 PCT/EP1995/004993 EP9504993W WO9619320A1 WO 1996019320 A1 WO1996019320 A1 WO 1996019320A1 EP 9504993 W EP9504993 W EP 9504993W WO 9619320 A1 WO9619320 A1 WO 9619320A1
Authority
WO
WIPO (PCT)
Prior art keywords
impact
hole
thread
drilling
forming
Prior art date
Application number
PCT/EP1995/004993
Other languages
German (de)
English (en)
Inventor
Helmut Österle
Erich Palm
Original Assignee
Sfs Industrie Holding Ag
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 Sfs Industrie Holding Ag filed Critical Sfs Industrie Holding Ag
Priority to DK95942173T priority Critical patent/DK0799113T3/da
Priority to EP95942173A priority patent/EP0799113B1/fr
Priority to PL95320855A priority patent/PL177827B1/pl
Priority to AU43456/96A priority patent/AU706778B2/en
Priority to CZ971777A priority patent/CZ177797A3/cs
Priority to DE59504846T priority patent/DE59504846D1/de
Priority to JP8519494A priority patent/JPH10500364A/ja
Publication of WO1996019320A1 publication Critical patent/WO1996019320A1/fr
Priority to FI972606A priority patent/FI114974B/fi
Priority to GR990400482T priority patent/GR3029398T3/el

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/02—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket
    • B25B21/023—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket for imparting an axial impact, e.g. for self-tapping screws

Definitions

  • the invention relates to a method for setting a self-drilling or self-tapping and thread-forming or tapping screw, which has a drilling part or a hole-forming end section and a shaft with a self-tapping or self-tapping thread, in which a screw in during the drilling or hole-forming process Axial direction acting impact is switched on.
  • DE-A 14 78 914 describes a method of the aforementioned type.
  • the impact effect in the known method consists only of a single impact which is exerted in order to produce the hole.
  • the screw is then screwed into the workpiece.
  • This known method can only be used with thin materials if a stop is provided on the opposite side to prevent the material from bending when the blow is made to make the hole. Providing such a stop means an additional work step that extends the setting time and, moreover, is not always possible.
  • care has always been taken to ensure that the drilling process ends before the thread forming process begins, since the feed speed is considerably greater than the usual drilling feed, depending on the thread pitch. In a drilling process, a corresponding axial force and a corresponding torque have to be applied, whereas after the engagement of the first thread, practically only a corresponding torque has to be applied.
  • the present invention has now set itself the task of proposing a method of the type mentioned, which ensures optimal molding and an optimal fit in the thread with a shorter setting time, especially with thin materials.
  • this is achieved in that the impact is caused by constant impact movements generated in the manner of a hammer drill, and that the impact is maintained in the subsequent thread forming or cutting process, or its strength is reduced or completely eliminated.
  • the advantage that is achieved by the method according to the invention lies primarily in the possibility of using the method even with thin materials, without a stop having to be provided on the opposite side in order to prevent bending. It is From DE 43 01 610 A1 and from DE 42 36 819 A1 an impact wrench or a combination of impact drill and impact wrench are known in which the impact effect can be switched off, but they are for a method for setting self-drilling or self-hole-forming and thread-forming or fast-cutting screw neither determined nor suitable.
  • the two process steps namely the impact action during the drilling or hole-forming process
  • the impact or the cutting process is reduced or eliminated completely in the subsequent thread forming or cutting process. It is to be regarded as a particular advance in the field of screw setting that these different process steps are used in succession in a single setting process.
  • the method according to the invention has even made it possible to form a hole without a rotary drive, as only with constant hammer movements produced in the manner of a hammer drill, which brings about the advantages indicated above, in particular in the case of thin workpieces.
  • a substrate made of wood or wood-based materials it is also possible to maintain the impact when screwing in. In the case of a substrate made of metal, for example, a reduced or completely eliminated impact is necessary.
  • a rotary drive for the screw it is possible for a rotary drive for the screw to be connected to the impact action acting in the axial direction during the drilling or hole-forming process.
  • the drilling or hole forming process can be improved even further by means of a rotary drive and superimposed impact.
  • the changeover from an axial impact to a reduced axial impact or the elimination of the impact from an axial relief is triggered immediately after the drilling or hole-forming process has ended.
  • Sudden axial relief is e.g. then given when the drilling part or the hole-forming end section has finished the bore or the hole, so that an immediate and sudden axial relief is created by the completion of the drilling process.
  • This axial relief - whether it occurs suddenly or more slowly - can be used in the method according to the invention as a mechanical signal or as a trigger for electrical signals in order to reduce the axial impact or to switch it off entirely.
  • the switchover from an axial impact to a reduced axial impact or the deactivation of the impact can be triggered by a presettable depth stop.
  • This variant of the method according to the invention can also be understood in a simple structural design, since an axial impact, for example in impact drills or Hammer drills are only available if a corresponding axial back pressure is applied. If, after the impact of a corresponding depth stop, this counterpressure no longer occurs from the screw, the switchover or switch-off provided according to the invention takes place.
  • Figure 1 is a side view of the screw, which is just placed on a workpiece.
  • Figure 2 shows this screw after forming a hole and immediately before the beginning of the thread cutting or forming process.
  • Fig. 3 shows an enlarged section through the workpiece and the screw, in particular the mutual thread engagement can be seen.
  • the hole and thread-forming screw 1 shown here is provided with a non-cutting hole-forming end section 2 which ends in a tip or z in a tip-like shape. Furthermore, a shaft section 4 provided with a thread 3 and an engagement section for attaching or inserting a tool are provided.
  • a screw 1 was assumed, which is designed to be self-piercing and self-tapping. There is therefore a non-cutting hole-forming end section 2 and a corresponding thread 3.
  • the method described here can, however, be used for all other self-tapping or thread-forming screws, and it is also possible in this way to set screws which are self-tapping and self-tapping. It is not essential for the present process whether the drilling process or the hole forming process or the thread forming or cutting is carried out without cutting or cutting.
  • B Experiments have shown that the present method can also be used with particular success with self-drilling screws. It is irrelevant whether there is a drill tip made by forming or a corresponding drill bit at the free end of the screw.
  • screws with a hole-forming end section 2 or with other structural designs can be used, the screws being able to consist of a stainless material through and through.
  • the method described here is therefore that the rotary drive for the screw 1 in the hole-forming process is activated by an impact acting in the axial direction 6.
  • the screw is also subjected to the axial impact 6.
  • a corresponding hole 8 can be formed in the workpiece 9 in a work time which has been considerably shortened up to now.
  • a rotary drive would then be switched on after the hole forming to form the thread.
  • the impact is switched off after the further method step, so that only the rotary drive 7 is still effective.
  • the thread formed in the hole wall thus fits exactly on the surface of the thread 3 of the shaft 4.
  • the impact action is switched off during the subsequent thread forming or cutting process.
  • a slight impact that is to say a strength which is significantly reduced compared to the drilling process, would make sense.
  • An additional positive effect results from the axially acting impact, because the hole wall is additionally deformed downward, both when shaping and drilling a hole, especially in the case of thinner workpieces 9, so that a type of collar 10 results in the area of the hole 8 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
  • Earth Drilling (AREA)
  • Centrifugal Separators (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Forging (AREA)
  • Screw Conveyors (AREA)
  • Taps Or Cocks (AREA)
  • Numerical Control (AREA)
  • Drilling Tools (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

Selon un procédé pour enfoncer une vis (1) autoforeuse, autoperceuse, à tarauder ou à former des filets, des coups dans le sens axial (6) viennent s'ajouter au mouvement rotatif d'enfoncement (7) pendant l'étape de formation du trou. Les coups dans le sens axial sont arrêtés pendant l'étape de filetage et seul le mouvement rotatif d'enfoncement se poursuit.
PCT/EP1995/004993 1994-12-21 1995-12-18 Procede pour enfoncer des vis WO1996019320A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DK95942173T DK0799113T3 (da) 1994-12-21 1995-12-18 Fremgangsmåde ved isætning af skruer
EP95942173A EP0799113B1 (fr) 1994-12-21 1995-12-18 Procede pour enfoncer des vis
PL95320855A PL177827B1 (pl) 1994-12-21 1995-12-18 Sposób osadzania śruby
AU43456/96A AU706778B2 (en) 1994-12-21 1995-12-18 Screw driving-in process
CZ971777A CZ177797A3 (en) 1994-12-21 1995-12-18 Method of inserting a screw
DE59504846T DE59504846D1 (de) 1994-12-21 1995-12-18 Verfahren zum setzen einer schraube
JP8519494A JPH10500364A (ja) 1994-12-21 1995-12-18 ねじ打ち込み方法
FI972606A FI114974B (fi) 1994-12-21 1997-06-18 Menetelmä ruuvin asentamiseksi
GR990400482T GR3029398T3 (en) 1994-12-21 1999-02-12 Screw driving-in process

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4445812.6 1994-12-21
DE4445812A DE4445812C2 (de) 1994-12-21 1994-12-21 Verfahren zum Setzen einer Schraube

Publications (1)

Publication Number Publication Date
WO1996019320A1 true WO1996019320A1 (fr) 1996-06-27

Family

ID=6536596

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1995/004993 WO1996019320A1 (fr) 1994-12-21 1995-12-18 Procede pour enfoncer des vis

Country Status (15)

Country Link
EP (1) EP0799113B1 (fr)
JP (1) JPH10500364A (fr)
CN (1) CN1046452C (fr)
AT (1) ATE175612T1 (fr)
AU (1) AU706778B2 (fr)
CA (1) CA2208700A1 (fr)
CZ (1) CZ177797A3 (fr)
DE (2) DE4445812C2 (fr)
DK (1) DK0799113T3 (fr)
ES (1) ES2129890T3 (fr)
FI (1) FI114974B (fr)
GR (1) GR3029398T3 (fr)
PL (1) PL177827B1 (fr)
RU (1) RU2153605C2 (fr)
WO (1) WO1996019320A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10258238B4 (de) * 2002-12-13 2005-11-10 Audi Ag Nagelschraube zur Herstellung einer Fügeverbindung, sowie ein Fügeverfahren unter Verwendung der Nagelschraube und eine Vorrichtung zur Durchführung des Fügeverfahrens
DE102015226085A1 (de) * 2015-12-18 2017-06-22 Robert Bosch Gmbh Handwerkzeugmaschine mit einer Schalteinheit
DE102022132885A1 (de) 2022-12-09 2024-06-20 Böllhoff Verbindungstechnik GmbH Zweistufiges Fügeverfahren, Fügeverbindung mit einem Stapel aus Bauteilen und Fügevorrichtung dafür

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1478914A1 (de) * 1964-07-08 1969-11-20 Gkn Screws Fasteners Ltd Werkzeug zum Einbringen selbstlochender und selbstgewindeherstellender Schrauben in ein Werkzeug
US4370906A (en) * 1980-05-05 1983-02-01 Resonant Technology Company Sequenced fastener installation system
DE4236819A1 (en) * 1991-10-31 1993-05-06 Makita Corp., Anjo, Aichi, Jp Machine tool power transmitting appts. from driver to rotating drive shaft - translates both rotary and to and fro movement to spindle from rotary moment of drive mechanism to drive rotating tool
DE4301610A1 (de) * 1993-01-22 1994-08-04 Bosch Gmbh Robert Schlagschrauber

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1909366A (en) * 1932-05-05 1933-05-16 Charles A Koza Tool
DE3121275A1 (de) * 1981-05-29 1982-12-16 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zum motorischen eindrehen von schrauben

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1478914A1 (de) * 1964-07-08 1969-11-20 Gkn Screws Fasteners Ltd Werkzeug zum Einbringen selbstlochender und selbstgewindeherstellender Schrauben in ein Werkzeug
US4370906A (en) * 1980-05-05 1983-02-01 Resonant Technology Company Sequenced fastener installation system
DE4236819A1 (en) * 1991-10-31 1993-05-06 Makita Corp., Anjo, Aichi, Jp Machine tool power transmitting appts. from driver to rotating drive shaft - translates both rotary and to and fro movement to spindle from rotary moment of drive mechanism to drive rotating tool
DE4301610A1 (de) * 1993-01-22 1994-08-04 Bosch Gmbh Robert Schlagschrauber

Also Published As

Publication number Publication date
EP0799113A1 (fr) 1997-10-08
EP0799113B1 (fr) 1999-01-13
AU706778B2 (en) 1999-06-24
PL320855A1 (en) 1997-11-10
PL177827B1 (pl) 2000-01-31
JPH10500364A (ja) 1998-01-13
GR3029398T3 (en) 1999-05-28
DE4445812C2 (de) 1996-11-28
CA2208700A1 (fr) 1996-06-27
DE4445812A1 (de) 1996-06-27
CZ177797A3 (en) 1997-12-17
ATE175612T1 (de) 1999-01-15
FI114974B (fi) 2005-02-15
DK0799113T3 (da) 1999-09-06
AU4345696A (en) 1996-07-10
ES2129890T3 (es) 1999-06-16
CN1046452C (zh) 1999-11-17
FI972606A0 (fi) 1997-06-18
CN1170377A (zh) 1998-01-14
DE59504846D1 (de) 1999-02-25
RU2153605C2 (ru) 2000-07-27
FI972606A (fi) 1997-06-18

Similar Documents

Publication Publication Date Title
EP0799387B1 (fr) Vis foreuse et taraudeuse et son procede de vissage
DE19615191C2 (de) Schraube und Verfahren zur drehmomentbegrenzten Befestigung von Metall- und/oder Kunststoffprofilen oder -platten auf einem Unterbau
EP0102605A1 (fr) Vis à bois
EP1767794B1 (fr) Cheville à expansion pour la fixation de panneaux isolants
EP2229538A1 (fr) Élément de fixation
EP0292742B1 (fr) Vis d'écartement
WO1998046891A1 (fr) Element de fixation autoperforant et taraudeur
DE3515531A1 (de) Schraube
EP1117882B1 (fr) Element de fixation et procede pour fixer des bandes ou des plaques isolantes sur une base fixe
EP0824198B1 (fr) Vis ayant une pointe autoperçante
DE10253888A1 (de) Befestigungseinheit
EP3199824B1 (fr) Système de fixation et son utilisation
DE69202387T2 (de) Verfahren zur Herstellung einer Selbstbohrschraube.
DE4445812C2 (de) Verfahren zum Setzen einer Schraube
DE3913299A1 (de) Verfahren und vorrichtung zum formen eines gewindes in gestein oder beton
DE4213862C2 (de) Blindnietartiger Klemmverbinder
DE19652318C1 (de) Schraube zur gegenseitigen Befestigung von wenigstens zwei Bauteilen
WO2015110376A1 (fr) Procédé de fabrication d'un système de fixation, système de fixation et vis destiné à celui-ci
DE4445813C2 (de) Vorsatz für eine mit axialer Schlagwirkung arbeitende Maschine
EP0799386B1 (fr) Vis foreuse et taraudeuse et son procede d'enfoncement
WO2019042963A1 (fr) Fixation, agencement de fixation et procédé d'assemblage
DE102022132885A1 (de) Zweistufiges Fügeverfahren, Fügeverbindung mit einem Stapel aus Bauteilen und Fügevorrichtung dafür
DE10313635A1 (de) Bohrschraube
EP0026441B1 (fr) Clou avec tige filetée
DD297205A5 (de) Spreizduebel

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 95196909.9

Country of ref document: CN

AK Designated states

Kind code of ref document: A1

Designated state(s): AM AT AU BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IS JP KE KG KP KR KZ LK LR LT LU LV MD MG MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TT UA UG US UZ VN

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: PV1997-1777

Country of ref document: CZ

WWE Wipo information: entry into national phase

Ref document number: 972606

Country of ref document: FI

ENP Entry into the national phase

Ref document number: 2208700

Country of ref document: CA

Ref document number: 2208700

Country of ref document: CA

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 1995942173

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 1997 849939

Country of ref document: US

Date of ref document: 19970924

Kind code of ref document: A

WWP Wipo information: published in national office

Ref document number: 1995942173

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: PV1997-1777

Country of ref document: CZ

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWG Wipo information: grant in national office

Ref document number: 1995942173

Country of ref document: EP

WWR Wipo information: refused in national office

Ref document number: PV1997-1777

Country of ref document: CZ

WWG Wipo information: grant in national office

Ref document number: 972606

Country of ref document: FI