EP0344117A2 - Procédé et dispositif pour laminer des rainures dans des queues d'outils - Google Patents

Procédé et dispositif pour laminer des rainures dans des queues d'outils Download PDF

Info

Publication number
EP0344117A2
EP0344117A2 EP89810372A EP89810372A EP0344117A2 EP 0344117 A2 EP0344117 A2 EP 0344117A2 EP 89810372 A EP89810372 A EP 89810372A EP 89810372 A EP89810372 A EP 89810372A EP 0344117 A2 EP0344117 A2 EP 0344117A2
Authority
EP
European Patent Office
Prior art keywords
grooves
insertion end
segments
axial direction
rolled
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
EP89810372A
Other languages
German (de)
English (en)
Other versions
EP0344117A3 (en
EP0344117B1 (fr
Inventor
Dieter Soehnlein
Dieter Dr. Wirths
Anton Knoller
Peter Kunert
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.)
Hilti AG
Original Assignee
Hilti 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 Hilti AG filed Critical Hilti AG
Priority to AT89810372T priority Critical patent/ATE98537T1/de
Publication of EP0344117A2 publication Critical patent/EP0344117A2/fr
Publication of EP0344117A3 publication Critical patent/EP0344117A3/de
Application granted granted Critical
Publication of EP0344117B1 publication Critical patent/EP0344117B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K5/00—Making tools or tool parts, e.g. pliers
    • B21K5/02—Making tools or tool parts, e.g. pliers drilling-tools or other for making or working on holes
    • B21K5/10—Forming drill-bit shanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/18—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons grooved pins; Rolling grooves, e.g. oil grooves, in articles
    • B21H7/187—Rolling helical or rectilinear grooves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/44—Making machine elements bolts, studs, or the like
    • B21K1/54—Making machine elements bolts, studs, or the like with grooves or notches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/18—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons grooved pins; Rolling grooves, e.g. oil grooves, in articles

Definitions

  • the invention relates to a forming process, in particular for the production of drilling and chiseling tools, with a grooved insertion end.
  • Tools such as those produced by means of a forming process of the aforementioned type are known, for example, from DE-PS 2 551 125 and are used in particular for stone processing.
  • the tools are inserted into a receptacle of a drive device, this receptacle having fixed or radially disengageable locking elements which engage in a form-fitting manner in the grooves of the insertion end of the tools. Torque can be transmitted to the tool via these locking elements and the tool can be prevented from being ejected from the receptacle.
  • the form-fitting holder in the receptacle grooves of the insertion end can be produced in different ways.
  • This machining production has the disadvantages known per se, such as a high expenditure of time and unfavorable influencing of the material by interrupting the fiber course.
  • the further known embossing method according to DE-OS 3 015 893 was also not able to completely eliminate the disadvantages, particularly with regard to expenditure of time.
  • due to the high forces occurring in this forming process a relatively large expenditure on equipment is required.
  • the invention has for its object to provide a forming process that enables simple and efficient production of the grooves in the insertion ends of tools.
  • this is achieved in that the grooves are rolled into the insertion end by means of segments that roll in the axial direction at the insertion end.
  • the grooves are continuously produced during the rolling of the segments, which on the one hand requires smaller forming forces and on the other hand enables the material to flow better.
  • This flow of the material results in a favorable fiber orientation of the material in the area of the insertion end.
  • the rolling of the grooves can be done from the free end of the insertion end or from the opposite end, ie directly to the solid.
  • the grooves are expediently rolled to the full depth in one pass. This rolling of the grooves to the full depth is made possible in particular by the continuous shaping of the material and the lower power requirement compared to a pure stamping process. Rolling the grooves in one pass enables efficient production and a high surface quality in the area of the longitudinal grooves.
  • the grooves can have a longitudinal extent extending in the longitudinal direction or in the circumferential direction of the insertion end.
  • a device for carrying out the method according to the invention is advantageously characterized in that the segments are arranged so as to be pivotable about an axis which is substantially perpendicular to the axial direction of the insertion end.
  • the segments When swiveling the segments around to the axial direction of the insertion end of the axis, which is essentially vertical, the segments roll in the axial direction at the insertion end.
  • the relative movement between the segments and the insertion end can be brought about by axially displacing the axis of the segments or by a feed movement of the insertion end.
  • the segments are expediently arranged on a lever which is rotatably mounted about an axis which is essentially perpendicular to the axial direction of the insertion end.
  • the segments can be releasably connected to the lever and can therefore be easily replaced.
  • the lever is preferably designed with two arms with an actuating arm protruding from the segment.
  • a working cylinder is advantageously provided for rotating the lever.
  • the working cylinder can be operated for example by means of compressed air or expediently by means of a hydraulic fluid. Since relatively high forces are necessary with a relatively short path, hydraulically operated cylinders are particularly suitable as working cylinders, which also enable good synchronization of several cylinders to be actuated simultaneously.
  • the device shown in FIGS. 1 to 4 for producing an insertion end 1 has segments 2 which are arranged on a lever 3.
  • the lever 3 is rotatably mounted about an axis 4 which is substantially perpendicular to the axial direction of the insertion end 1.
  • the levers 3 have two arms and are connected to a push rod 6 at the end opposite the segments 2 by means of bolts 5.
  • the push rod 6 is connected via a ball head 6a to an annular piston 7 which can be displaced in a working cylinder 8 in the axial direction of the insertion end 1.
  • the ring piston 7 is displaced by means of a hydraulic fluid 9, which is supplied to the working cylinder 8 via a connecting piece 10.
  • the insertion end 1 is fed between the segments 2. Due to the symmetrical arrangement of the segments 2, the insertion end 1 is centered at the same time.
  • the annular piston 7 is now moved into the end position shown in FIG. 2.
  • the segments 2 connected to the levers 3 roll in the axial direction at the insertion end 1 and roll grooves 1a into the surface of the insertion end 1.
  • the levers 3 are rotated about the axis 4 by the annular piston 7 via the push rod 6.
  • the insertion end 1 is released and the levers 3 can be rotated back into the starting position shown in FIG. 1 by the annular piston 7.
  • the device is in turn ready for the production of the grooves 1a at a further insertion end 1.
  • a total of four segments 2 connected with levers 3 are arranged over the circumference of the insertion end 1.
  • the levers 3 are connected to consoles 11 via the axes 4.
  • the brackets 11 are attached to a face plate 12, not shown in FIGS. 1 and 2. Instead of four brackets 11, however, two, three or six brackets 11 can also be arranged on the face plate 12.
  • the insertion end 1 is surrounded by the segments 2 over the entire circumference. This ensures that a precise cross section of the insertion end 1 is achieved when rolling the grooves 1a.
  • the grooves 1a on the groove base are provided with a profile 1b which has stop surfaces 1c which act essentially in the axial direction.
  • the profiling 1b is rolled into the surface of the insertion end 1 simultaneously with the grooves 1a by the segments 2 arranged on the lever 3.
  • the segments 2 are provided with a counter-profile 2a corresponding to the profile 1b.
  • the profiling 1b prevents an excessive change in length of the insertion end when rolling the grooves 1a and thereby enables the formation of an angular profile of the insertion end 1. A cross-sectional change resulting from the change in length of the insertion end 1 is thereby avoided.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Forging (AREA)
  • Metal Rolling (AREA)
  • Milling Processes (AREA)
  • Processing Of Terminals (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Blast Furnaces (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP89810372A 1988-05-25 1989-05-19 Procédé et dispositif pour laminer des rainures dans des queues d'outils Expired - Lifetime EP0344117B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89810372T ATE98537T1 (de) 1988-05-25 1989-05-19 Verfahren und vorrichtung zum walzen von nuten in einsteckenden von werkzeugen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3817680 1988-05-25
DE3817680A DE3817680A1 (de) 1988-05-25 1988-05-25 Umformungsverfahren fuer werkzeuge

Publications (3)

Publication Number Publication Date
EP0344117A2 true EP0344117A2 (fr) 1989-11-29
EP0344117A3 EP0344117A3 (en) 1990-12-27
EP0344117B1 EP0344117B1 (fr) 1993-12-15

Family

ID=6355057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89810372A Expired - Lifetime EP0344117B1 (fr) 1988-05-25 1989-05-19 Procédé et dispositif pour laminer des rainures dans des queues d'outils

Country Status (8)

Country Link
US (1) US4941339A (fr)
EP (1) EP0344117B1 (fr)
JP (1) JP2551996B2 (fr)
AT (1) ATE98537T1 (fr)
CA (1) CA1327133C (fr)
DE (2) DE3817680A1 (fr)
DK (1) DK170363B1 (fr)
FI (1) FI95358C (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0467493A1 (fr) * 1990-07-12 1992-01-22 MANNESMANN Aktiengesellschaft Appareil de forgeage oscillant
US6528079B2 (en) 1996-06-04 2003-03-04 Bayer Aktiengesellschaft Shaped bodies which release agrochemical active substances
CH714772A1 (de) * 2018-11-15 2019-09-13 Grob Ernst Fa Vorrichtung und Verfahren zum kaltumformenden Profilieren von Werkstücken.
DE102021109639B3 (de) 2021-04-16 2022-08-25 Schaeffler Technologies AG & Co. KG Verfahren zur Herstellung eines ein Verzahnungsprofil aufweisenden Bauteils; sowie Werkzeugvorrichtung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1059850C (zh) * 1997-04-09 2000-12-27 郑安明 精密热锻压矿山钎头的加工方法
DE102018113978B3 (de) * 2018-06-12 2019-09-05 Mag Ias Gmbh Kaltwalzmaschine und Verfahren zur Erzeugung eines Profils an einem Werkstück

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US685417A (en) * 1901-01-07 1901-10-29 Lewis Williams Spike-grooving machine.
US1231324A (en) * 1916-04-27 1917-06-26 Cleveland Hardware Company Master-die for forging dies for drop-hammers, presses, and the like.
US3591136A (en) * 1969-02-26 1971-07-06 Arthur E Bishop Rotary valve with curved valve slot
DE3015893A1 (de) * 1980-04-24 1981-10-29 Hilti AG, 9494 Schaan Verfahren zum herstellen von mitnahmenuten an werkzeugen
GB2127327B (en) * 1982-08-20 1986-04-30 Alton Systems Limited An antiskid surface treatment for use on scaffolding components
JPS59157742U (ja) * 1983-04-04 1984-10-23 新日本製鐵株式会社 鋼板面への与歪装置
DE3413432A1 (de) * 1983-12-27 1985-07-04 Gebrüder Heller GmbH Werkzeugfabrik, 2807 Achim Bohrer fuer handbohrmaschinen
AU566086B2 (en) * 1984-10-04 1987-10-08 Bishop Steering Technology Limited Valve cores

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0467493A1 (fr) * 1990-07-12 1992-01-22 MANNESMANN Aktiengesellschaft Appareil de forgeage oscillant
US6528079B2 (en) 1996-06-04 2003-03-04 Bayer Aktiengesellschaft Shaped bodies which release agrochemical active substances
CH714772A1 (de) * 2018-11-15 2019-09-13 Grob Ernst Fa Vorrichtung und Verfahren zum kaltumformenden Profilieren von Werkstücken.
WO2020099536A1 (fr) * 2018-11-15 2020-05-22 Ernst Grob Ag Dispositif et procédé de profilage de pièces par formage à froid
US12179254B2 (en) 2018-11-15 2024-12-31 Ernst Grob Ag Apparatus and method for profiling workpieces by cold forming
DE102021109639B3 (de) 2021-04-16 2022-08-25 Schaeffler Technologies AG & Co. KG Verfahren zur Herstellung eines ein Verzahnungsprofil aufweisenden Bauteils; sowie Werkzeugvorrichtung

Also Published As

Publication number Publication date
EP0344117A3 (en) 1990-12-27
FI95358B (fi) 1995-10-13
DK252789D0 (da) 1989-05-24
FI892493L (fi) 1989-11-26
US4941339A (en) 1990-07-17
JPH0225234A (ja) 1990-01-26
DK170363B1 (da) 1995-08-14
FI892493A0 (fi) 1989-05-23
JP2551996B2 (ja) 1996-11-06
ATE98537T1 (de) 1994-01-15
FI95358C (fi) 1996-01-25
DE3817680A1 (de) 1989-12-07
DE58906401D1 (de) 1994-01-27
CA1327133C (fr) 1994-02-22
EP0344117B1 (fr) 1993-12-15
DK252789A (da) 1989-11-26

Similar Documents

Publication Publication Date Title
DE2518170C3 (de) Kombiniertes Fertigbohr- und Glattwalzwerkzeug
CH655892A5 (de) Bohrhammer mit fuehrungszylinder fuer das schlagwerk.
DD139806A5 (de) Aufweitbares laeppwerkzeug zum feinstlaeppen
DE3814550C1 (en) Clamping device for clamping two machine parts releasable from one another
DE3203231A1 (de) Verfahren und vorrichtung zum kaltschmieden von innenprofilierten rohrkoerpern
EP0901862A2 (fr) Machine de brochage
DE3241746C2 (fr)
CH662964A5 (de) Verfahren zur bearbeitung eines werkstuecks in einer drehmaschine zwischen spitzen sowie spannvorrichtung zur durchfuehrung dieses verfahrens.
CH666429A5 (de) Verfahren und vorrichtung zur gewindeherstellung.
EP0344117B1 (fr) Procédé et dispositif pour laminer des rainures dans des queues d'outils
DE3221973A1 (de) Spannhuelse
DE3400082C2 (fr)
EP0231911A2 (fr) Procédé pour l'ajustage automatique du guidage d'une barre pour une machine à tourner CNC et machine à tourner pour la mise en oeuvre de ce procédé
DE2632481C3 (de) Maschine zum Einbringen von Zentrierbohrungen in die Enden von Stangenmaterial
EP1259350A1 (fr) Outil de frottement avec tige de guidage
DE10137437A1 (de) Bearbeitung von Bolzenbohrungen von Kolben
DE2824958A1 (de) Bohrstange mit angeschmiedeter bohrkrone mit mehr als vier schneiden zum anstechen von hochoefen
DE3424630C2 (de) Vorschubeinrichtung zum Tiefbohren
DE3524438C2 (de) Einrichtung zur Zylinderfehlerkompensation an einer Schleifmaschine
EP1567299B1 (fr) Outil de coupe de filets
EP0549821A1 (fr) Procédé pour opérer le pierrage de forages et tête de pierrage pour la mise en oeuvre du procédé
DE69703577T2 (de) Werkzeugmaschine zum Herstellen von Löchern in Teilen, die für das Glasfaserstrangpressen vorgesehen sind
DE2334667A1 (de) Honwerkzeug zum aussenhonen von werkstuecken
DE3334001A1 (de) Schleifspindel
DE3014334A1 (de) Bohreinheit

Legal Events

Date Code Title Description
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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19910110

17Q First examination report despatched

Effective date: 19920529

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed
AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 98537

Country of ref document: AT

Date of ref document: 19940115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 58906401

Country of ref document: DE

Date of ref document: 19940127

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940124

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EAL Se: european patent in force in sweden

Ref document number: 89810372.6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19990325

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19990402

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19990531

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20000511

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20000517

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000520

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000531

BERE Be: lapsed

Owner name: HILTI A.G.

Effective date: 20000531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001201

EUG Se: european patent has lapsed

Ref document number: 89810372.6

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20001201

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20010511

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20010518

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010519

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010519

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20010519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020531

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030131

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050519

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20060427

Year of fee payment: 18

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071201