EP0799113B1 - Procede pour enfoncer des vis - Google Patents

Procede pour enfoncer des vis Download PDF

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Publication number
EP0799113B1
EP0799113B1 EP95942173A EP95942173A EP0799113B1 EP 0799113 B1 EP0799113 B1 EP 0799113B1 EP 95942173 A EP95942173 A EP 95942173A EP 95942173 A EP95942173 A EP 95942173A EP 0799113 B1 EP0799113 B1 EP 0799113B1
Authority
EP
European Patent Office
Prior art keywords
hole
forming
thread
axial
drilling
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.)
Expired - Lifetime
Application number
EP95942173A
Other languages
German (de)
English (en)
Other versions
EP0799113A1 (fr
Inventor
Helmut Österle
Erich Palm
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.)
SFS Industrie Holding AG
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
Publication of EP0799113A1 publication Critical patent/EP0799113A1/fr
Application granted granted Critical
Publication of EP0799113B1 publication Critical patent/EP0799113B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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-hole-forming and thread-forming or tapping screw, which a drilling part or a hole-forming end section and a shaft with a self-forming or has self-tapping thread, in the drilling or hole forming process by Screw a permanent acting in the axial direction, generated by hammer drill Impact movements caused by impact movements are switched on.
  • From US-A-4 370 906 is a method for setting a self-piercing as well thread-forming or tapping screw of the type mentioned, in which at Hole-forming process an impact acting in the axial direction is switched on. This Impact is caused by constant impact movements generated by a hammer drill evoked. In the subsequent thread forming or cutting process, the Impact completely switched off.
  • the present invention has now set itself the task of a method of the beginning to propose the type mentioned, which with an optimal setting time and a shorter setting time ensures an optimal fit in the thread, especially with thin materials.
  • this is achieved in that, in the method mentioned at the beginning, a rotary drive for the screw during drilling or Hole forming process, the impact action acting in the axial direction is switched on, and that maintain the impact during the subsequent thread forming or cutting process or is reduced in strength or completely eliminated.
  • the advantage achieved by the method according to the invention lies primarily in the Possibility to use the method even with thin materials, without the On the opposite side, a stop must be provided 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 percussion drill and impact wrench known to have the impact effect can be turned off, but they are for a method of setting self-drilling or self-tapping, thread-forming or fast-tapping screws neither determined nor suitable.
  • the method according to the invention has an effect on whether a drilling part with cutting Effect or a hole-forming end portion with non-cutting production of a hole on the Screw is provided, in the same way positive, that an axial impact is switched on.
  • the drilling time or the time for forming the hole becomes essential shortened, both for thin and correspondingly thicker workpieces.
  • the switch from an axial Impact on a reduced axial impact or the switch-off the impact can be triggered by a pre-adjustable depth stop.
  • This Variant of the method according to the invention is also in a simple constructive design understandable, as an axial impact, for example in impact drills or Hammer drills are only available if a corresponding axial back pressure is applied becomes. If, after hitting a corresponding depth stop, this If there is no back pressure from the screw, the switchover according to the invention takes place or shutdown.
  • the hole and thread forming screw 1 shown here is with a to a point or a tip-like shape tapered, chipless hole-forming end portion 2. Furthermore, a shaft section 4 provided with a thread 3 and an engagement section 5 for attaching or inserting a tool.
  • a screw 1 has been assumed which is self-piercing as well as self-tapping. So there is a chip-free hole-forming here End section 2 and a corresponding thread 3 available.
  • the procedure described here but is self-tapping or thread-tapping in all other ways Screws can be used, and also screws can be set in this way, which are self-drilling and self-tapping. Whether during the drilling process or in the hole forming process or in thread forming or cutting without cutting or cutting is not essential for the present method.
  • the present method is also suitable for self-drilling Screws can be used with particular success. It does not matter whether one drill bit produced by forming or a corresponding drill plate at the free end the screw is present.
  • the Screws can consist of a stainless material through and through.
  • the method described here is therefore that the rotary drive for the screw 1st during the hole forming process, an impact action acting in the axial direction 6 is activated.
  • the screw is also subjected to the axial impact 6. It can therefore be a correspondingly shorter working time than in the past Hole 8 are formed in the workpiece 9.
  • Thread forming or cutting process As a rule, or with practically all versions and possible uses, it becomes the following Thread forming or cutting process to switch off the impact come. In very special areas of application, however, it would also be possible for the following Thread forming process or thread cutting process a small, that is in their strength compared the drilling process would be significantly reduced impact.
  • An additional one positive effect results from the axial impact, because of both when forming as well as drilling a hole, especially with thinner workpieces 9 Hole wall is additionally deformed downward, so that there is a kind in the area of the hole 8 Bund 10 results. This results in correspondingly large workpieces 9, even with relatively thin ones axial areas in which the thread 3 of the threaded shaft 4 of the screw 1 engage can.

Landscapes

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

Claims (4)

  1. Procédé pour placer une vis (1) auto-perçante ou autoperforante ainsi que taillante ou découpante, qui comporte un segment d'extrémité (2) de perçage ou de perforation et un corps avec un filetage (3) auto-taillant ou auto-forant, et selon lequel lors de l'opération de perçage ou de perforation par la vis (1), un mouvement de percussion permanent, du type perforateur agit dans la direction axiale en créant un effet de percussion,
    caractérisé en ce que
    à l'entraínement en rotation de la vis (1) pour l'opération de perçage ou de perforation, on ajoute l'effet de percussion (6) agissant dans la direction axiale et
    on conserve l'effet de percussion (6) ou on réduit son intensité ou on l'élimine complètement pendant l'opération de taille ou de formation de filetage.
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    on réduit l'intensité de l'effet de percussion (6) ou on l'élimine, directement après le passage complet de la partie perforante ou d'un segment perforant (2) de la vis (1) et avant que le premier filet ne pénètre dans le perçage ou le trou (8).
  3. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que
    on déclenche la commutation d'un effet de percussion axiale (6) sur un effet de percussion axiale (6) d'intensité réduite ou la suppression de l'effet de percussion (6) par la décharge axiale produite directement après la fin de l'opération de perçage ou de perforation.
  4. Procédé selon l'une des revendications 1 à 3,
    caractérisé en ce que
    la commutation d'un effet de percussion axiale (6) sur un effet de percussion axiale (6) d'intensité réduite ou la coupure de l'effet de percussion (6) est déclenchée par une butée de profondeur préréglable.
EP95942173A 1994-12-21 1995-12-18 Procede pour enfoncer des vis Expired - Lifetime EP0799113B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4445812A DE4445812C2 (de) 1994-12-21 1994-12-21 Verfahren zum Setzen einer Schraube
DE4445812 1994-12-21
PCT/EP1995/004993 WO1996019320A1 (fr) 1994-12-21 1995-12-18 Procede pour enfoncer des vis

Publications (2)

Publication Number Publication Date
EP0799113A1 EP0799113A1 (fr) 1997-10-08
EP0799113B1 true EP0799113B1 (fr) 1999-01-13

Family

ID=6536596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95942173A Expired - Lifetime EP0799113B1 (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 (2)

* 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

Family Cites Families (6)

* 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
GB1056699A (en) * 1964-07-08 1967-01-25 Gkn Screws Fasteners Ltd A tool for applying a self-piercing and self-threading screw to a workpiece
US4370906A (en) * 1980-05-05 1983-02-01 Resonant Technology Company Sequenced fastener installation system
DE3121275A1 (de) * 1981-05-29 1982-12-16 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zum motorischen eindrehen von schrauben
JP2558753Y2 (ja) * 1991-10-31 1998-01-14 株式会社マキタ 回転電動工具の動力伝達機構
DE4301610C2 (de) * 1993-01-22 1996-08-14 Bosch Gmbh Robert Schlagschrauber

Also Published As

Publication number Publication date
FI972606A0 (fi) 1997-06-18
DE59504846D1 (de) 1999-02-25
FI114974B (fi) 2005-02-15
GR3029398T3 (en) 1999-05-28
PL177827B1 (pl) 2000-01-31
CN1046452C (zh) 1999-11-17
CA2208700A1 (fr) 1996-06-27
ES2129890T3 (es) 1999-06-16
JPH10500364A (ja) 1998-01-13
EP0799113A1 (fr) 1997-10-08
PL320855A1 (en) 1997-11-10
CZ177797A3 (en) 1997-12-17
AU4345696A (en) 1996-07-10
RU2153605C2 (ru) 2000-07-27
ATE175612T1 (de) 1999-01-15
WO1996019320A1 (fr) 1996-06-27
DE4445812A1 (de) 1996-06-27
DE4445812C2 (de) 1996-11-28
AU706778B2 (en) 1999-06-24
DK0799113T3 (da) 1999-09-06
FI972606A (fi) 1997-06-18
CN1170377A (zh) 1998-01-14

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