EP0393392A1 - Aufweitvorrichtung für geschlitzte Klemmbohrungen - Google Patents

Aufweitvorrichtung für geschlitzte Klemmbohrungen Download PDF

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Publication number
EP0393392A1
EP0393392A1 EP90105883A EP90105883A EP0393392A1 EP 0393392 A1 EP0393392 A1 EP 0393392A1 EP 90105883 A EP90105883 A EP 90105883A EP 90105883 A EP90105883 A EP 90105883A EP 0393392 A1 EP0393392 A1 EP 0393392A1
Authority
EP
European Patent Office
Prior art keywords
legs
bore
bores
threaded
clamping
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Withdrawn
Application number
EP90105883A
Other languages
German (de)
English (en)
French (fr)
Inventor
Horst Klann
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
Publication of EP0393392A1 publication Critical patent/EP0393392A1/de
Withdrawn legal-status Critical Current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
    • B25B33/00—Hand tools not covered by any other group in this subclass
    • 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
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/023—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws

Definitions

  • the invention relates to an expanding device for slotted clamping bores of holding arms, the clamping legs of which are provided with a continuous transverse bore for receiving a clamping screw shaft, consisting of a holder which has two parallel legs connected on one side by a connecting web, the two legs having mutually coaxial bores are provided for receiving anchoring bolts and in the connecting web there is a threaded bore which lies centrally between the legs and runs transversely to the bores thereof and has a screw bolt which has an expansion element.
  • the expansion element of the screw bolt is designed as a cone.
  • they are provided with diametrically extending, continuous axial slots, which are penetrated by pins which are fastened in the bores of the holder in transverse bores.
  • the invention has for its object to improve an expanding device of the type mentioned in that it can be used more universally and that the expansion element of the screw bolt not only abuts the edges of the slot of the clamping bore to be expanded.
  • the parallel legs are provided with coaxial threaded bores, that a plurality of pairs of threaded bolts each with different anchoring pins are provided for insertion into these threaded bores, and that the screw bolt arranged in the threaded bore of the connecting web is provided with an expanding wedge rotatably mounted thereon .
  • the pairs of threaded bolts or pairs of anchoring pins are exchanged bar, so that their application can be adapted to the respective diameter of the transverse bore in the clamping leg of the clamping bore to be expanded.
  • a greater spreading force can be exerted without the risk of excessive edge deformation than with a conical expansion element.
  • the configuration according to claim 2 makes handling easier insofar as the axial expansion force generates a relatively low bearing friction between the expansion element and the screw bolt in which it is mounted.
  • the embodiment according to claim 3 has the advantage that the expansion wedge can also be easily replaced if necessary, but is otherwise captively fastened in the blind hole of the screw bolt.
  • the expanding device shown in the drawing serves to expand slotted clamping bores, which are used in holding arms positive and non-positive mounting of cylindrical shafts, for example of spherical bearings on motor vehicles and the like, are provided.
  • Such a holding arm 1 with a clamping bore 2 is partially shown in the drawing.
  • a cylindrical shaft 3, for example of a ball joint pin, is seated in the clamping bore 2.
  • the end section of the holding arm 1 adjoining the clamping bore 2 is divided into two legs 5 and 6 by a separating slot 4 extending from the clamping bore 2 to the end, each of which is provided with a continuous transverse bore 7 and 8, respectively.
  • These cross holes 7 and 8 have a common axis 9 and normally serve to receive the shaft of a clamping screw, which is not shown in the drawing here and with which the two legs 5 and 6 are pressed together for the purpose of clamping the shaft 3 in the clamping bore 2 can.
  • This expanding device consists of an essentially U-shaped, one-piece holder 10, preferably made of steel, the two parallel legs 11 and 12 and one the two legs 11 and 12 connecting connecting web 13. Between the two legs 11 and 12 there is a cavity 14 which is open on three sides and is delimited by the legs 11 and 12 and the connecting web 13 running transversely thereto. In use, this cavity 14 serves to receive the end section of a holding arm 1, the clamping bore 2 of which is to be widened.
  • a threaded bore 15 with a screw bolt 16 is arranged in the connecting bar 13.
  • the screw bolt 16 has a hexagon key head 17 and is provided with a central blind hole 18.
  • this blind bore 18 there is an expanding wedge 19 shown in FIG. 3 as an individual part, which has a cylindrical section 20 with an annular groove 21 and a wedge-shaped expanding tip 22.
  • the diameter of the cylindrical section 20 is matched to the inner diameter of the blind bore 18.
  • an axial bearing in the form of a ball 24 is provided between the end face of the expansion cone 19 and the end face of the blind bore 18.
  • the two legs 11 and 12 are coaxial with each other and transverse to the threaded bore 15 of the connecting web 13
  • threaded bolts 27 and 28 are screwed, which each have a hexagonal key head 29 at the outer end and an anchoring pin 30 tapered in diameter at the other end.
  • these two anchoring pins 30 are screwed into the bore 7 of the legs 5 and 6 of the holding arm 1 from both sides, so that the latter is firmly anchored in the cavity 14.
  • the spreader tip 22 is then driven into the slot 4 from above by appropriate screwing in of the screw bolt 16, so that the two legs 5 and 6 are pressed apart and the clamping bore 2 is widened somewhat, and then the shaft 3 stuck therein can be removed therefrom.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dowels (AREA)
  • Clamps And Clips (AREA)
EP90105883A 1989-04-15 1990-03-28 Aufweitvorrichtung für geschlitzte Klemmbohrungen Withdrawn EP0393392A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8904751U DE8904751U1 (de) 1989-04-15 1989-04-15 Aufweitvorrichtung für geschlitzte Klemmbohrungen
DE8904751U 1989-04-15

Publications (1)

Publication Number Publication Date
EP0393392A1 true EP0393392A1 (de) 1990-10-24

Family

ID=6838332

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90105883A Withdrawn EP0393392A1 (de) 1989-04-15 1990-03-28 Aufweitvorrichtung für geschlitzte Klemmbohrungen

Country Status (3)

Country Link
EP (1) EP0393392A1 (ko)
DE (1) DE8904751U1 (ko)
DK (1) DK90890A (ko)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1281482A2 (de) * 2001-07-21 2003-02-05 Krumm GmbH & Co. Druckspindel für einen Abzieher
CN107932128A (zh) * 2017-12-30 2018-04-20 蚌埠液力机械有限公司 倾斜油缸接头油孔钻孔工装
CN108907804A (zh) * 2018-08-09 2018-11-30 柳州市钜嘉机械有限公司 一种数控钻床设备用双夹具装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005011207U1 (de) 2005-07-16 2005-10-06 Klann-Spezial-Werkzeugbau-Gmbh Spreizwerkzeug
DE202005014291U1 (de) 2005-09-10 2005-12-15 Klann-Spezial-Werkzeugbau-Gmbh Variable Spreizvorrichtung
DE202010015630U1 (de) 2010-11-18 2011-02-10 Klann-Spezial-Werkzeugbau-Gmbh Spreizvorrichtung
DE202022105681U1 (de) 2022-10-10 2024-01-15 Hazet-Werk Hermann Zerver Gmbh & Co. Kg Spreizvorrichtung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD32366A (ko) *

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD32366A (ko) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1281482A2 (de) * 2001-07-21 2003-02-05 Krumm GmbH & Co. Druckspindel für einen Abzieher
EP1281482A3 (de) * 2001-07-21 2005-03-23 Krumm KG Druckspindel für einen Abzieher
CN107932128A (zh) * 2017-12-30 2018-04-20 蚌埠液力机械有限公司 倾斜油缸接头油孔钻孔工装
CN108907804A (zh) * 2018-08-09 2018-11-30 柳州市钜嘉机械有限公司 一种数控钻床设备用双夹具装置

Also Published As

Publication number Publication date
DK90890A (da) 1990-10-16
DE8904751U1 (de) 1989-06-08
DK90890D0 (da) 1990-04-11

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19920619

18W Application withdrawn

Withdrawal date: 19920723