EP0325738B1 - Elément de serrage - Google Patents

Elément de serrage Download PDF

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Publication number
EP0325738B1
EP0325738B1 EP88120225A EP88120225A EP0325738B1 EP 0325738 B1 EP0325738 B1 EP 0325738B1 EP 88120225 A EP88120225 A EP 88120225A EP 88120225 A EP88120225 A EP 88120225A EP 0325738 B1 EP0325738 B1 EP 0325738B1
Authority
EP
European Patent Office
Prior art keywords
clamping
bolt
cover plate
shoe according
abutment plate
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
EP88120225A
Other languages
German (de)
English (en)
Other versions
EP0325738A2 (fr
EP0325738A3 (en
Inventor
Adolf Würthele
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.)
Gressel AG
Original Assignee
Gressel 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 Gressel AG filed Critical Gressel AG
Priority to AT88120225T priority Critical patent/ATE75981T1/de
Publication of EP0325738A2 publication Critical patent/EP0325738A2/fr
Publication of EP0325738A3 publication Critical patent/EP0325738A3/de
Application granted granted Critical
Publication of EP0325738B1 publication Critical patent/EP0325738B1/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
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/10—Arrangements for positively actuating jaws using screws
    • B25B5/104—Arrangements for positively actuating jaws using screws with one screw and one clamping lever and one fulcrum element
    • B25B5/106—Arrangements for positively actuating jaws using screws with one screw and one clamping lever and one fulcrum element with one end of the lever resting on an additional block and the screw being positioned between the ends of the lever
    • 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
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/10—Arrangements for positively actuating jaws using screws
    • B25B5/104—Arrangements for positively actuating jaws using screws with one screw and one clamping lever and one fulcrum element
    • B25B5/106—Arrangements for positively actuating jaws using screws with one screw and one clamping lever and one fulcrum element with one end of the lever resting on an additional block and the screw being positioned between the ends of the lever
    • B25B5/107—Blocks therefor

Definitions

  • the invention relates to a clamping claw for clamping objects, in particular vices on machine tables, with an essentially rectangular, flat clamping lug, which has a longitudinal slot extending in its longitudinal direction for the passage of a clamping screw which can be anchored in a T-slot of the machine table, and with one with the tensioning plate by means of a bolt which extends at right angles to its plane and which protrudes with respect to the underside of the tensioning plate and which can be rotated relative to the axis of the bolt.
  • a known clamping claw of this type (DE-GM 73 15 457) the bolt is designed as a screw which can be screwed into a threaded hole in the clamping lug.
  • the distance between the abutment plate, which is rotatably arranged at the lower end of the bolt, and the clamping lug can be changed and the clamping claw can thus be adapted to the thickness of the objects to be clamped.
  • fixing clamping devices such as vices on drilling machine tables poses particular problems because neither the size of these drilling machine tables nor the arrangement of the T-slots is standardized.
  • the machine vices also have a wide variety of dimensions.
  • the machine vices have to be clamped in a wide variety of positions depending on the workpiece and the drilling spindle on the drilling machine table, whereby additional problems may arise due to the small size of the drilling machine tables.
  • the known clamping claws it is therefore often not possible to securely clamp the machine vice in the desired position on the drilling machine table.
  • the invention is therefore based on the object of providing a clamping claw for clamping objects, in particular vices, on machine tables of the type mentioned at the outset, which makes it possible to securely clamp vices in any desired position on a wide variety of machine tables and is inexpensive to manufacture.
  • abutment plate is arranged eccentrically to the bolt axis in the clamping claw of the type mentioned and in that the bolt is displaceable in a longitudinal slot of the clamping bracket.
  • the clamping claw 1 has a clamping tab 2, which is essentially rectangular and flat.
  • the tensioning tab 2 is provided with a longitudinal slot 3 extending in its longitudinal direction and has bevels 4 at one end.
  • the tensioning tab 2 can advantageously be punched out of sheet metal or flat steel, the longitudinal slot 3 and the bevels 4 also being punched out at the same time.
  • An abutment plate 5 is provided on the underside 2a of the tensioning tab 2, which plate is expediently designed as a cylindrical disk.
  • the lower side of the tensioning tab 2 is supported on the upper side 5a of the abutment plate 5.
  • the abutment plate 5 is movably connected to the clamping bracket 2 via the bolt 6.
  • the abutment plate 5 is eccentric to the Bolt axis A arranged.
  • the bolt 6 itself is expediently designed as a knurled screw, the knurled head 6a of which protrudes above the upper side 2b of the tensioning tab 2.
  • the bolt 6 is also displaceable in the longitudinal slot 3 of the clamping tab 2.
  • This longitudinal slot 3 also serves for the passage of a clamping screw 7 which can be screwed into a sliding block 8.
  • the sliding block 8 can be inserted into one of the T-slots 9 of a machine table, in particular a drilling machine table M.
  • the head of the tensioning screw 7 is supported with the interposition of a washer 10 on the top 2b of the tensioning tab 2.
  • the abutment plate 5 which is arranged eccentrically with respect to the pin axis A, can be moved by means of the pin 6 or the knurled screw both in the direction B of the longitudinal slot 3 and also pivotable about the pin axis A in the direction C.
  • the abutment plate 5 can be moved and pivoted by means of the knurled head 6a, the eccentric position of the abutment plate 5 being expediently indicated by a marking 11 provided on the head 6a.
  • a vice S to be clamped on the machine table M has a clamping bar 12 on each of its two longitudinal sides.
  • One end of the clamping tab 2 is brought into contact with the clamping surface 12a of this clamping bar 12, as shown in FIGS. 2 and 3.
  • By moving the abutment plate 5 in the direction B and pivoting the same in the direction C it can be brought into a suitable position in which it is supported on the surface of the machine table M or the edge thereof.
  • the abutment plate 5 and clamping screw 7 can also be brought into the position shown in broken lines in FIG. 3. If necessary, it is also possible to interchange the position of the clamping screw 7 and the abutment plate 5. The exchange of abutment plate 5 and clamping screw 7 makes it possible to bring the clamping screw even closer to the vice.
  • the longitudinal slot 3 can namely extend at the end 2c of the tensioning tab facing away from the bevels 4 up to the vicinity of this end, since the cross section of the tensioning tab at this end 2c is not weakened by bevels.
  • the clamping tab 2 can also be attached obliquely to a vice S or its clamping strip 12. Again, the abutment plate 5 can be brought into a favorable position by pivoting and moving.
  • Figure 5 shows a position of the clamping tab 2, in which it is arranged with its long side parallel to the clamping bar 12.
  • the height H of the abutment plate 5 should correspond to the height h of the clamping bar 12 of the vice S. If a vice has a clamping bar with a different height h, the abutment plate 5 can optionally also be exchanged for one with a different height.
  • a vice S1 is to be clamped with an internal groove 13 and this internal groove is removed from the surface of the machine table M has a smaller distance h1, then one can also turn the clamping tab 2 so that its top 2b comes to lie down.
  • the knurled head 6a which has a smaller height H1 than the height H of the abutment plate 5, forms the abutment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Claims (7)

  1. Griffe de serrage pour assujettir des objets, en particulier des étaux, sur des tables de machines, comprenant une bride plane (2), essentiellement rectangulaire, qui présente une fente longitudinale (3), s'étendant dans le sens de sa longueur, pour le passage d'une vis de serrage (7) susceptible d'être ancrée dans une rainure en T de la table de la machine, ainsi qu'une plaque de contre-appui appelée cale (5), qui est reliée à la bride au moyen d'un tourillon (6) d'orientation perpendiculaire au plan de la bride et faisant saillie du dessous (2a) de celle-ci, cale qui est rotative autour de l'axe (A) du tourillon par rapport à la bride, caractérisée en ce que la cale (5) est excentrée par rapport à l'axe (A) du tourillon et que le tourillon (6) est déplaçable en translation dans une fente longitudinale (3) de la bride (2).
  2. Griffe de serrage selon la revendication (1), caractérisée en ce que la bride (2) s'appuie par son dessous (2a) sur le dessus (5a) de la cale (5).
  3. Griffe de serrage selon la revendication 1 ou 2, caractérisée en ce que le tourillon (6) est déplaçable en translation dans la fente longitudinale (3) par laquelle passe également la vis de serrage (7).
  4. Griffe de serrage selon la revendication 1 ou 2, caractérisée en ce que la cale (5) est réalisée sous la forme d'un disque cylindrique.
  5. Griffe de serrage selon la revendication 1, caractérisée en ce que le tourillon (6) est formé par la tige d'une vis moletée dont la tête moletée (6a) fait saillie du dessus (2b) de la bride (2).
  6. Griffe de serrage selon la revendication 1 ou 4, caractérisée en ce que la hauteur (H) de la cale (5) correspond à la hauteur (h) de rebords d'ablocage (12) d'étaux (S).
  7. Griffe de serrage selon la revendication 5 ou 6, caractérisée en ce que la tête moletée (6a) possède une plus faible hauteur (H1) que la cale (5).
EP88120225A 1988-01-26 1988-12-03 Elément de serrage Expired - Lifetime EP0325738B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88120225T ATE75981T1 (de) 1988-01-26 1988-12-03 Spannpratze.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3802091A DE3802091C1 (fr) 1988-01-26 1988-01-26
DE3802091 1988-01-26

Publications (3)

Publication Number Publication Date
EP0325738A2 EP0325738A2 (fr) 1989-08-02
EP0325738A3 EP0325738A3 (en) 1990-03-07
EP0325738B1 true EP0325738B1 (fr) 1992-05-13

Family

ID=6345932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88120225A Expired - Lifetime EP0325738B1 (fr) 1988-01-26 1988-12-03 Elément de serrage

Country Status (4)

Country Link
EP (1) EP0325738B1 (fr)
JP (1) JPH01222834A (fr)
AT (1) ATE75981T1 (fr)
DE (1) DE3802091C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108127439A (zh) * 2017-12-22 2018-06-08 合肥仨力机械制造有限公司 一种叉车零件打孔装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4842797A (en) * 1996-05-13 1997-12-05 Rainer Forster Work bench for assembly of workpieces
CN102626732B (zh) * 2012-04-28 2014-01-29 苏州市达圣机械有限公司 一种铝条的侧推夹紧装置
CN102922497B (zh) * 2012-10-09 2015-08-26 中船澄西船舶修造有限公司 辅机连杆修理工作台
CN103921232A (zh) * 2014-05-06 2014-07-16 安徽工程大学 一种夹紧装置
CN110666710A (zh) * 2019-09-25 2020-01-10 温州市强达表业有限公司 一种手表表带拉丝抛光器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1189676A (fr) * 1958-01-10 1959-10-06 Const Mecaniques Soc Et Dispositif de fixation sur tables rainurées de machines-outils
FR1375736A (fr) * 1963-05-21 1964-10-23 Feinmechanik G M B H Dispositif de fixation ou de montage
US3850421A (en) * 1973-04-23 1974-11-26 R Orris Clamp apparatus
DE7315457U (de) * 1973-04-24 1973-10-18 Duevel W Gerät zum Festspannen von Werkstücken

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108127439A (zh) * 2017-12-22 2018-06-08 合肥仨力机械制造有限公司 一种叉车零件打孔装置

Also Published As

Publication number Publication date
ATE75981T1 (de) 1992-05-15
EP0325738A2 (fr) 1989-08-02
DE3802091C1 (fr) 1988-11-03
EP0325738A3 (en) 1990-03-07
JPH01222834A (ja) 1989-09-06

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