EP0510399B1 - Support pour broche à pression pour dispositif de serrage - Google Patents

Support pour broche à pression pour dispositif de serrage Download PDF

Info

Publication number
EP0510399B1
EP0510399B1 EP92105663A EP92105663A EP0510399B1 EP 0510399 B1 EP0510399 B1 EP 0510399B1 EP 92105663 A EP92105663 A EP 92105663A EP 92105663 A EP92105663 A EP 92105663A EP 0510399 B1 EP0510399 B1 EP 0510399B1
Authority
EP
European Patent Office
Prior art keywords
block
holder according
pressure spindle
holder
spindle
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
EP92105663A
Other languages
German (de)
English (en)
Other versions
EP0510399A1 (fr
Inventor
Detlef Ulle
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.)
DESTACO Europe GmbH
Original Assignee
DE STA CO Metallerzeugnisse GmbH
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 DE STA CO Metallerzeugnisse GmbH filed Critical DE STA CO Metallerzeugnisse GmbH
Publication of EP0510399A1 publication Critical patent/EP0510399A1/fr
Application granted granted Critical
Publication of EP0510399B1 publication Critical patent/EP0510399B1/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
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • 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
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • B25B5/163—Jaws or jaw attachments

Definitions

  • the invention relates to a holder for pressure spindles on clamping devices, in the clamping arm of which an elongated hole guide for the adjustable reception and fixing of the pressure spindle is arranged by means of fixing elements, cf. e.g. US-A-4,396,217.
  • Such pressure spindles must be provided on clamping arms of clamping devices if flat workpieces such as sheets or the like are to be clamped on a solid base.
  • the tensioning arms are provided with an elongated hole guide which is penetrated by the pressure spindle in the desired position.
  • flank washers or flank washers combined to form a U-shaped bracket are required, and in the case of two separate flank washers two nuts or in the case of a U-shaped bracket a lock nut, provided that one leg of the U-shaped Bracket is provided with a threaded hole for screwing in the pressure spindle.
  • the respective pressure spindle can be set and fixed both in the axial direction and with regard to their arrangement in the elongated hole of the clamping arm.
  • adjustment and fixability of the pressure spindle is always associated with a certain amount of fumbling, i.e. it requires a certain skill to achieve the actually desired position of the pressure spindle with respect to the clamping arm.
  • the invention has for its object to provide a holder for pressure spindles on clamping devices of the type mentioned, which consists of only one part and in which with only one element both the pressure spindle in terms of their axial fixation and the holder itself can be fixed with respect to its position in the clamping arm should be.
  • the holder which is seated in the slot guide and is designed as a block, which is anyway made of tough, limited elastic material, is elastically deformable in two respects, on the one hand in relation to the thread of the pressure spindle and on the other hand in relation to on the edges of the elongated hole guide in the tensioning arm or in relation to the tensioning arm itself.
  • the slot part extending over the entire length of the block is advantageously dimensioned with a depth that corresponds to two thirds of the height of the block, and the tapped hole in the middle of the Pressure spindle extended slot part is arranged in the upper third of the block.
  • the block can be inserted into the elongated hole guide, on the other hand, however, a tongue-like, divided upper area of the block is created, which also detects the threaded bore of the pressure spindle and which is used to press the block serves when tightening the clamping screw in the desired position of the block in the slot guide.
  • a tongue-like, divided upper area of the block is created, which also detects the threaded bore of the pressure spindle and which is used to press the block serves when tightening the clamping screw in the desired position of the block in the slot guide.
  • Under “smoothly penetrated upper part of the Block is to be understood as the part of the block that is formed by the tongue, ie the tensioning screw must of course not be connected to the tongue part by thread engagement, since otherwise this tongue part cannot be bent.
  • either the mounting hole of the tensioning screw is used formed in the tongue-like block delimited by a slot, or the clamping screw is provided under its head with a thread-free shaft part.
  • the upper guide flange is expediently smaller in cross section than the lower guide flange.
  • the holder can advantageously be designed such that the slot part delimiting the tongue-like part of the block downward is designed to be inclined at least in the area of the threaded bore of the pressure spindle toward the bottom surface of the block.
  • the tongue part is reinforced with regard to its material connection to the remaining part of the block or the connection cross section of the tongue part is enlarged and thus counteracts a risk of breakage in this critical attachment area of the tongue.
  • This holder according to the invention could also be easily produced from sufficiently elastic metallic material, but this would involve a greater manufacturing outlay.
  • the block is therefore preferably formed from injection-moldable or pourable plastic, with which the holder or the block can be produced in one work step with a corresponding mold design.
  • the fixing elements for the pressure spindle 6 are formed in the form of a block made of tough, limited elastic material provided with an upper and lower guide flange 2, 3.
  • the pressure spindle 6 and the clamping screw 7 are arranged one behind the other in parallel threaded holes 4, 5 and in the longitudinal direction of block 1, the upper part of block 1, which is penetrated smoothly by the clamping screw 7, having a cross-slot 8, the threaded holes 4 in the axial direction , 5 oriented and this intersecting slot part 8 'extends over the entire length L of the block 1.
  • the other slot part 8 ⁇ of the cross slot 8 extends from the end 9 of the block 1 remote from the spindle to the center of the threaded bore 4 of the pressure spindle 6.
  • the slot part 8 'extending over the entire length L is dimensioned with a depth T which is approximately two Third corresponds to the height H of the block 1, and the slot part 8 ⁇ which extends to the center of the threaded bore of the pressure spindle 6 is arranged in the upper third of the block.
  • this creates a tongue-like elastic upper part with the upper guide flange 2, which is also formed in two parts by the slot part 8 '.
  • the receiving bore 5 'for the clamping screw 7 in the tongue-like upper part is thread-free and has a diameter allowance in relation to the clamping screw 7 that the two tongue parts can be deformed in the direction of arrow A.
  • the pressure spindle 6 can be easily screwed out of the area of the slot part 8 'for the introduction of the block 1 into the slot guide 11 so as not to deform the block 1 in the direction of arrow A at the end 9' through the fully screwed pressure spindle 6 ' to block.
  • the pressure spindle is screwed in correspondingly far into the desired axial position relative to the holder or the clamping arm 12.
  • the clamping screw 7 is already on the not yet deformed surface 10 'of the block 1 loosely, so that the whole holder can be moved within the slot guide 11 in the desired position.
  • the two-part tongue When tightening the clamping screw 7, the two-part tongue is bent in the direction of arrow B (as said, such a bending moves in the range of tenths of a millimeter), as a result of which the upper flange 2 is pressed onto the edges of the elongated hole guide 11 or the clamping arm 12 and thus the holder is fixed in its position relative to the clamping arm 12. Since the tongue bending also affects the thread of the pressure spindle 6, because the slot part 8 ⁇ extends to the center of the threaded bore 4 of the pressure spindle, this deformation also results in the deformation Pressure spindle 6 fixed, since the internal thread of the threaded bore 4 extends to the surface 10 'of the block 1.
  • FIG. 3 The particular embodiment according to FIG. 3 is in particular intended for a holder made of metal, but this does not rule out the possibility of carrying out this two-part design of the holder also in plastic.
  • This embodiment differs from that described above in Fig. 1 essentially only in that the slot part 8 'is formed as a whole block 1 in two parts I, II separating section. 3 shows the preferred form of further development in which the two parts I, II are provided on their mutually facing surfaces F 1, F 2 in the region of the threaded bore 5 with interlocking semicircular extensions 13 and corresponding recesses 14.
  • extensions 13 and recesses 14 are not absolutely necessary, since the two parts I, II are anyway pressed onto the flanks of the elongated hole guide 11 when the pressure spindle 6 and the clamping screw 7 are screwed in, but the extensions 13 and recesses 14 enable one with respect to the threaded holes 4, 5 precise assignment of the two parts I, II even before insertion into the slot guide 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Gripping On Spindles (AREA)

Claims (10)

  1. Support pour broches de pression (6) sur des dispositifs de serrage, dans le bras de serrage (12) desquels est placé un guidage à trou oblong (11) pour le logement et la fixation réglable de la broche de pression (6) au moyen d'éléments de fixation,
    caractérisé en ce
    que les éléments de fixation sont formés en forme de bloc (1) en matière tenace, d'élasticité limitée, équipé d'une bride de guidage supérieure (2) et d'une bride de guidage inférieure (3) dans lequel la broche de pression (6) et une vis de serrage (7) sont placées l'une derrière l'autre dans le sens longitudinal du bloc (1) dans des forures filetées (4, 5) parallèles l'une à l'autre, la partie supérieure du bloc (1) traversée en étant lisse par la vis de serrage (7) présentant une fente cruciforme (8) dont la partie fendue (8′) qui est orientée dans le sens de l'axe des forures filetées (4, 5) et qui les coupe s'étend sur toute la longueur (L) du bloc (1) et dont l'autre partie fendue (8˝) s'étend de l'extrémité (9) éloignée de la broche du bloc (1) jusqu'au milieu de la forure filetée (4) de la broche de pression (6).
  2. Support selon la revendication 1,
    caractérisé en ce
    que la partie fendue (8′) qui s'étend sur toute la longueur (L) est dimensionnée avec une profondeur (T) qui correspond aux deux tiers de la hauteur (H) du bloc (1).
  3. Support selon la revendication 1 ou 2,
    caractérisé en ce
    que la partie fendue (8˝) qui s'étend jusqu'au milieu de la forure filetée (4) de la broche de pression (6) est placée dans le tiers supérieur du bloc.
  4. Support selon l'une des revendications 1 à 3,
    caractérisé en ce
    que la forure de logement (5′) de la vis de serrage (7) est configurée sans filet dans la partie languette du bloc (1) qui est délimitée par la partie fendue (8˝).
  5. Support selon l'une des revendications 1 à 3,
    caractérisé en ce
    que la vis de serrage (7) est pourvue sous sa tête (7′) d'une partie tige sans filet (7˝).
  6. Support selon l'une des revendications 1 à 5,
    caractérisé en ce
    que la bride de guidage supérieure (2) est dimensionnée de section inférieure à la bride de guidage inférieure (3).
  7. Support selon l'une des revendications 1 à 6,
    caractérisé en ce
    que la partie fendue (8˝) qui délimite la partie languette du bloc (1) vers le bas est configurée en étant inclinée au moins dans la zone de la forure filetée (4) de la broche de pression (6) vers la face de fond (10) du bloc (1).
  8. Support selon l'une des revendications 1 à 8,
    caractérisé en ce
    que le bloc (1) est formé en matière plastique qui peut être moulée par injection ou moulée.
  9. Support selon l'une des revendications 3 à 7,
    caractérisé en ce
    que la partie fendue (8′) est configurée comme une entaille qui sépare l'ensemble du bloc (1) en deux parties (I, II).
  10. Support selon la revendication 9,
    caractérisé en ce
    que les deux parties (I, II) sont pourvues sur leurs faces opposées (F1, F2) dans la zone de la forure filetée (5) de de saillies (13) en forme de demi-cercle qui s'engrènent et d'évidements correspondants (14).
EP92105663A 1991-04-20 1992-04-02 Support pour broche à pression pour dispositif de serrage Expired - Lifetime EP0510399B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9104864U 1991-04-20
DE9104864U DE9104864U1 (fr) 1991-04-20 1991-04-20

Publications (2)

Publication Number Publication Date
EP0510399A1 EP0510399A1 (fr) 1992-10-28
EP0510399B1 true EP0510399B1 (fr) 1994-07-27

Family

ID=6866524

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92105663A Expired - Lifetime EP0510399B1 (fr) 1991-04-20 1992-04-02 Support pour broche à pression pour dispositif de serrage

Country Status (3)

Country Link
EP (1) EP0510399B1 (fr)
DE (2) DE9104864U1 (fr)
ES (1) ES2059173T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9412723U1 (de) * 1994-08-06 1994-09-29 Sta Co Mettallerzeugnisse Gmbh Spannarm für Spannvorrichtungen
DE102005035846A1 (de) 2005-07-30 2007-02-08 GM Global Technology Operations, Inc., Detroit Andruckvorrichtung für ein Spannsystem
CN102000998B (zh) * 2010-11-12 2012-07-04 吴江市菀坪镙丝厂 圆杆加工工装
CN103586707B (zh) * 2013-10-25 2016-08-24 安徽机电职业技术学院 一种机器人手腕连接体镗孔专用夹具
CN108788806A (zh) * 2018-08-22 2018-11-13 无锡雪浪环境科技股份有限公司 车槽专用夹具

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1475027A1 (de) * 1960-12-21 1969-05-08 Hanfland Curt H Sicherungsmutter
DE2228062A1 (de) * 1972-06-09 1973-12-20 Volkswagenwerk Ag Klemmutter
US4396217A (en) * 1981-04-28 1983-08-02 Hodgson R W Clamp hand protector
US4658686A (en) * 1985-07-31 1987-04-21 Shopsmith, Inc. Miter gage
DE3922858A1 (de) * 1989-07-12 1991-01-17 Bergische Achsen Kotz Soehne Radlager fuer anhaengerachsen

Also Published As

Publication number Publication date
DE9104864U1 (fr) 1991-06-06
EP0510399A1 (fr) 1992-10-28
ES2059173T3 (es) 1994-11-01
DE59200311D1 (de) 1994-09-01

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