EP0533093A2 - Moyens de serrage à variation continue - Google Patents

Moyens de serrage à variation continue Download PDF

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Publication number
EP0533093A2
EP0533093A2 EP92115713A EP92115713A EP0533093A2 EP 0533093 A2 EP0533093 A2 EP 0533093A2 EP 92115713 A EP92115713 A EP 92115713A EP 92115713 A EP92115713 A EP 92115713A EP 0533093 A2 EP0533093 A2 EP 0533093A2
Authority
EP
European Patent Office
Prior art keywords
housing
clamping tool
tool according
screw bolt
cutout
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Withdrawn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
EP92115713A
Other languages
German (de)
English (en)
Other versions
EP0533093A3 (en
Inventor
Ewald Barabas
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.)
Bessey and Sohn GmbH and Co KG
Original Assignee
Bessey and Sohn GmbH and Co KG
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 Bessey and Sohn GmbH and Co KG filed Critical Bessey and Sohn GmbH and Co KG
Publication of EP0533093A2 publication Critical patent/EP0533093A2/fr
Publication of EP0533093A3 publication Critical patent/EP0533093A3/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Withdrawn legal-status Critical Current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
    • 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
    • B25B5/108—Arrangements for positively actuating jaws using screws with one screw and one clamping lever and one fulcrum element the screw contacting one of 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
    • B25B5/006—Supporting devices for clamps

Definitions

  • the invention relates to a continuously adjustable clamping tool for fixing workpieces on a machining table, in particular a machine tool, according to the preamble of claim 1.
  • a known clamping tool of the generic type consists of at least one basic unit; This can optionally be coupled with one or more height building blocks, so that the clamping height of the clamping tool can be increased if desired and required.
  • the base unit has a housing which can be fixed by means of fastening means, for example a screw bolt, on a processing table, for example a drilling, milling or other machine tool, or another plate, for example a perforated grid plate and the like.
  • the housing is provided with a cutout on one side, which is penetrated by a freely projecting pressure arm.
  • This pressure arm has at its outer free end a pressure shoe for resting on the workpiece; at its inner end the pressure arm is rotatably mounted in the housing and can be pivoted there by means of a spindle drive which is arranged in the housing and which interacts with a toothed ring segment provided at the inner end of the pressure arm.
  • the object of the invention is therefore to design the clamping tool of the generic type in order to eliminate the disadvantages described in such a way that it can be handled easily and without hindrance.
  • the configuration is such that the housing of the basic unit is designed to be retracted at least in the upper region of its cutout. This enables an unobstructed actuation of a turning tool for the screw bolt without impairing the main function of the clamping tool.
  • the setting of the clamping tool can be carried out in a desirable manner such that the turning tool, for example a fastening key used to turn the screw bolt, is actuated in a largely vertical position. In this way, no hindrance from the workpiece to be clamped is possible.
  • clamping tool is designed according to claim 2, there is the further advantage that the head of the bolt is easily accessible to the turning tool is, so that this also favors the vertical working position of the turning tool.
  • the housing unit of the base unit is particularly low. This makes it possible to machine even particularly flat workpiece parts, while at the same time achieving the greatest possible clamping paths of the pressure arm.
  • the screw bolt or bolts are placed on an exchangeable pressure plate.
  • This advantageously has corresponding suitable guide openings for the optionally used fastening bolt diameters and can in turn be inserted into lateral guide grooves in the lower region of the housing cutout. In this way, damage to the front housing opening or to the side housing cutout can be avoided, which contributes to a long service life of the clamping tool.
  • the pressure plate is expediently U-shaped, so that there is a simple configuration.
  • the pivoting path of the pressure arm can advantageously be limited downwards by the housing having an inwardly projecting stop near the upper end of its cutout. This interacts with the end of the pressure arm mounted in the housing, in particular with the first tooth of the ring gear segment provided on the circumferential side there.
  • this stop is a pin which is inserted, in particular fitted or screwed, into the housing head from the outside.
  • This stop pin can be inserted into the housing head in such a way that it is perpendicular from above, i.e. running coaxial to the spindle drive, protrudes into the swivel range of the ring gear segment of the pressure arm. According to a modified embodiment, however, it is also possible for the stop pin to run horizontally in the housing head, i.e. to be provided coaxially to the swivel axis of the pressure arm.
  • the pin not only serves as a stop in the manner described for the downward limitation of the swivel path of the pressure arm, but it also advantageously fulfills the function of chip protection at the same time, since it closes the housing opening that is otherwise present in the region of the housing head and that Penetration of metal chips and the like that usually occur during processing is prevented in the interior of the housing.
  • the configuration of the clamping tool according to the invention is advantageous.
  • the housing of the base unit has on its underside a groove running parallel to the pressure arm for receiving a guide web, which is arranged on the top of the height construction block that can be coupled to the base unit.
  • the groove on the underside of the base unit and the upper guide bar of the height building block can be designed accordingly, for example in the form of a dovetail or the like, in order to perform the aforementioned functions easily and safely.
  • the front and / or side housing shape is designed such that the turning tool for the screw bolt which fixes the height assembly block on the machining table can be actuated without hindrance, in particular from a vertical or largely vertical position.
  • the height construction block has a configuration similar to that of the basic unit, reference being made in detail to claim 11.
  • the bolt head is also supported on an interchangeable pressure plate, which has suitable matching guide openings for the optionally used bolt diameter and prevents damage to the housing opening.
  • the pressure plate in turn can be inserted into lateral guide grooves in the lower area of the side housing cutout of the height assembly block.
  • the clamping tool shown has at least one basic unit 1 which can be coupled to at least one height building block 2 in order to increase the clamping height of the clamping tool.
  • the base unit 1 of the clamping tool is provided with a housing 3 which has a cutout 4 on one side.
  • This housing cutout 4 is penetrated by a curved pressure arm 5, which has an articulated pressure shoe 6 at its outer free end for resting on the workpiece, not shown.
  • the pressure arm 5 is rotatably mounted in the housing 3.
  • the housing 3 has a bearing bore 7 at its thickened end, into which two interacting bearing disks 8, 9 engage.
  • These bearing disks 8, 9 are arranged in lateral housing bores 10 and are firmly connected to one another by means of a bearing screw 11 which is screwed into a bearing disk 8.
  • a toothed ring segment 12 is also provided on the circumference, as can clearly be seen in FIGS. 1 and 7, which has a spindle drive in the form of a pressure spindle 13 which is mounted in a largely vertical position in the rear region of the housing 3 cooperates.
  • This pressure spindle 13 is mounted in the housing 3 by means of a spindle bearing 14 and a spindle guide bush 15 and can be rotated by means of a clamping knob 16 which engages the correspondingly designed end 17 of the pressure spindle 13.
  • the pressure arm 5 can then be pivoted in a corresponding manner between an upper inoperative position A according to FIG. 1 and a lower clamping position B, in which it rests on the workpiece with its pressure shoe 6 and holds it securely on the machining table.
  • the swivel path of the pressure arm 5 is limited at the bottom by a stop which is designed in the form of a pin 18 and is so far inserted, in particular fitted or screwed in, from the outside into a corresponding bore of the housing head near the upper end of the housing cutout 4 that it is vertical, ie running coaxial to the axis of the pressure spindle 13, protrudes inwards.
  • a stop which is designed in the form of a pin 18 and is so far inserted, in particular fitted or screwed in, from the outside into a corresponding bore of the housing head near the upper end of the housing cutout 4 that it is vertical, ie running coaxial to the axis of the pressure spindle 13, protrudes inwards.
  • the basic unit 1 of the clamping tool is fixed on the machining table or on the height building block 2 by means of a screw bolt 20, the head 21 of which is received in the lower region of the housing cutout 4.
  • the housing cutout 4 is formed in its lower region and has an extension lug 22.
  • the head 21 of the bolt 20 rests on a separate pressure plate 23.
  • this is designed in a U-shape with a corresponding opening 24 for the suitable reception of the screw head 21.
  • lateral guide grooves 25 are provided in the lower region of the housing cutout 4, into which the pressure plate 23 can be inserted from the outside, with the opening 24 facing outwards. Then the thread of the bolt 21 resting on the pressure plate 23 with its head 21 can be screwed into a corresponding groove of the machining table, with the aid of a sliding block 26.
  • the housing 3 of the basic unit 1 is designed to be retracted far in the upper region of its cutout 4. This makes it possible, as can clearly be seen in FIGS. 1 and 2, to engage and actuate the turning tool 27 in an almost vertical position without hindrance with the head 21 of the screw bolt 20.
  • the fact that the described basic unit 1 of the clamping tool in the lower region of the housing cutout 4 has the extension lug 22 also contributes to this disability-free actuation, so that the bolt head 21 accommodated therein has a largely freely accessible top side.
  • the housing 3 of the base unit 1 has on the underside a groove 28 running parallel to the pressure arm 5. During the coupling process, this takes a guide web 29 in a leading and holding manner on, which is arranged on the upper side of the housing 30 of the height building block 2.
  • the housing 30 of the height building block 2 has a threaded bore 31 which receives the screw bolt 20 which is fixed with its head 21 in the housing 3 of the basic unit 1 in the manner described.
  • the base unit 1 is then securely and immovably coupled to the height building block 2, as can be clearly seen in FIG. 6.
  • the entire clamping tool, formed from the basic unit 1 and height-building block 2 is then fixed on the processing table by means of a further screw bolt 20 which, similarly to the screw bolt 20 of the basic unit 1, also rests on an exchangeable pressure plate 23.
  • This is also U-shaped with an opening 24 for receiving the bolt head 21 and can be inserted into lateral guide grooves 25 in the lower region of a lateral housing cutout 32 of the height-increasing block 2.
  • this housing 30 is designed to be withdrawn in its front and side region, as can be clearly seen from the drawing. This makes it possible, as can be seen in FIGS. 3 and 4, to operate the turning tool 27 in a largely upright position.
  • the stop pin 18 is not inserted vertically into the housing 3 from above, but horizontally, ie, running coaxially to the pivot axis of the pressure arm 5.
  • the stop pin 18 not only serves, like the stop pin 18 according to the previously described embodiment, as a limitation for the downward swiveling path of the pressure arm 5, but at the same time it also fulfills the function of chip protection, since in this embodiment it is it is no longer possible for metal chips and the like, for example, to penetrate through the open housing cutout 4 into the interior of the housing.
  • FIGS. 8 and 9 also differs from the previously described embodiment in that the housing 3 of the basic unit 1 shown has a recess 33 in the form of a recess on its outside.
  • the housing 3 of the basic unit 1 shown has a recess 33 in the form of a recess on its outside.
  • Fig. 9 provided on both sides on the outside of the housing and designed such that it fulfills the function of a recessed grip, so that the housing 3 can be easily gripped by the hand of a user and not the risk of slipping with the resulting adverse consequences.
  • the housing recess 33 is L-shaped, the longer (vertical) L-leg being arranged in the rear housing area and running approximately coaxially with the pressure spindle, while the shorter (horizontal) L-leg is in the one from FIG. 8 extends in the lower housing area.
  • the housing recess 33 is also, in particular at its edges, etc., designed such that it is suitable for receiving one or more insert plates 34.
  • insert plates 34 which can of course also be easily removed if desired, are preferably printed and can therefore advantageously carry corresponding technical information, for example with regard to the type of clamping tool, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
EP19920115713 1991-09-16 1992-09-14 Continuously variable clamping device Withdrawn EP0533093A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9111510U 1991-09-16
DE9111510U DE9111510U1 (de) 1991-09-16 1991-09-16 Stufenlos verstellbares Aufspannwerkzeug

Publications (2)

Publication Number Publication Date
EP0533093A2 true EP0533093A2 (fr) 1993-03-24
EP0533093A3 EP0533093A3 (en) 1993-07-14

Family

ID=6871319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920115713 Withdrawn EP0533093A3 (en) 1991-09-16 1992-09-14 Continuously variable clamping device

Country Status (3)

Country Link
EP (1) EP0533093A3 (fr)
JP (1) JP2606628Y2 (fr)
DE (1) DE9111510U1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6024350A (en) * 1997-01-14 2000-02-15 Black & Decker Inc. Clamp for a power tool
CN101987420A (zh) * 2010-09-13 2011-03-23 江苏江旭铸造集团有限公司 一种定位夹紧装置
TWI494188B (zh) * 2012-08-30 2015-08-01 Hon Hai Prec Ind Co Ltd 定位裝置
CN109048429A (zh) * 2018-10-26 2018-12-21 江门市森联木业有限公司 一种夹具
CN110788221A (zh) * 2018-08-02 2020-02-14 新泻机械株式会社 夹具装置
CN110805802A (zh) * 2018-08-06 2020-02-18 阿迪达斯股份公司 夹紧系统
EP4335590A1 (fr) * 2022-09-07 2024-03-13 Andreas Maier GmbH & Co. KG Élément intermédiaire destiné à être disposé entre un dispositif de serrage et un sous-sol et tour de serrage comprenant un élément intermédiaire

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4327471C1 (de) * 1993-08-16 1994-10-13 Systemspanntechnik Ing E Barab Selbstklemmendes Spannwerkzeug
IT1273069B1 (it) * 1994-03-22 1997-07-04 Dea Spa Attrezzatura di supporto riconfigurabile, particolarmente per una macchina di misura, e relativo metodo di configurazione
US20120032382A1 (en) * 2010-08-06 2012-02-09 Robert Bosch Gmbh Movable work piece clamping mechanism

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8515633U1 (de) * 1985-05-28 1985-07-11 Carossino Freres, Saint-Ouen l'Aumone Spannvorrichtung zum Spannen von Werkstücken auf Tischen von Werkzeugmaschinen
EP0418145A1 (fr) * 1989-09-11 1991-03-20 CAROSSINO FRERES, Société dite: Société à Responsabilité Limitée Elément de pression pour bridage de pièces à usiner

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8127044U1 (de) * 1982-04-08 IROX Werkzeug GmbH, 2105 Seevetal Einspannvorrichtung
FR2463408A2 (fr) * 1972-01-28 1981-02-20 Carossino Andre Dispositif multiplicateur de puissance en particulier pour le calcul de la resistance des materiaux, la realisation d'empreintes, le bridage de pieces ou autres
JPS5213550U (fr) * 1975-07-17 1977-01-31
US4458889A (en) * 1982-09-29 1984-07-10 Dover Corporation (De-Sta-Co. Div.) Locking power clamp
FR2538732A1 (fr) * 1983-01-05 1984-07-06 Carossino Freres Dispositif de bridage, notamment pour la fixation de pieces sur une machine-outil
US4620696A (en) * 1983-08-10 1986-11-04 Blatt Leland F Power clamp
JPS6338993U (fr) * 1986-09-01 1988-03-12

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8515633U1 (de) * 1985-05-28 1985-07-11 Carossino Freres, Saint-Ouen l'Aumone Spannvorrichtung zum Spannen von Werkstücken auf Tischen von Werkzeugmaschinen
EP0418145A1 (fr) * 1989-09-11 1991-03-20 CAROSSINO FRERES, Société dite: Société à Responsabilité Limitée Elément de pression pour bridage de pièces à usiner

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6024350A (en) * 1997-01-14 2000-02-15 Black & Decker Inc. Clamp for a power tool
CN101987420A (zh) * 2010-09-13 2011-03-23 江苏江旭铸造集团有限公司 一种定位夹紧装置
TWI494188B (zh) * 2012-08-30 2015-08-01 Hon Hai Prec Ind Co Ltd 定位裝置
CN110788221A (zh) * 2018-08-02 2020-02-14 新泻机械株式会社 夹具装置
CN110805802A (zh) * 2018-08-06 2020-02-18 阿迪达斯股份公司 夹紧系统
CN110805802B (zh) * 2018-08-06 2021-07-13 阿迪达斯股份公司 夹紧系统
US11571046B2 (en) 2018-08-06 2023-02-07 Adidas Ag Clamping system
CN109048429A (zh) * 2018-10-26 2018-12-21 江门市森联木业有限公司 一种夹具
EP4335590A1 (fr) * 2022-09-07 2024-03-13 Andreas Maier GmbH & Co. KG Élément intermédiaire destiné à être disposé entre un dispositif de serrage et un sous-sol et tour de serrage comprenant un élément intermédiaire

Also Published As

Publication number Publication date
DE9111510U1 (de) 1991-12-05
EP0533093A3 (en) 1993-07-14
JPH0674242U (ja) 1994-10-21
JP2606628Y2 (ja) 2000-12-18

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