EP0340602B1 - Commande pour un étau de machine - Google Patents

Commande pour un étau de machine Download PDF

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Publication number
EP0340602B1
EP0340602B1 EP89107420A EP89107420A EP0340602B1 EP 0340602 B1 EP0340602 B1 EP 0340602B1 EP 89107420 A EP89107420 A EP 89107420A EP 89107420 A EP89107420 A EP 89107420A EP 0340602 B1 EP0340602 B1 EP 0340602B1
Authority
EP
European Patent Office
Prior art keywords
drive
sleeve
chamber
power amplifier
drive according
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
EP89107420A
Other languages
German (de)
English (en)
Other versions
EP0340602A1 (fr
Inventor
Harald Feistenauer
Ludwig Krause
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.)
Saurer Allma GmbH
Original Assignee
Saurer Allma 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 Saurer Allma GmbH filed Critical Saurer Allma GmbH
Publication of EP0340602A1 publication Critical patent/EP0340602A1/fr
Application granted granted Critical
Publication of EP0340602B1 publication Critical patent/EP0340602B1/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
    • B25B1/00—Vices
    • 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
    • B25B1/00—Vices
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2405—Construction of the jaws
    • B25B1/2473—Construction of the jaws with pull-down action on the workpiece
    • 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
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/10—Arrangements for positively actuating jaws using screws
    • B25B1/106—Arrangements for positively actuating jaws using screws with mechanical or hydraulic power amplifiers

Definitions

  • a machine vice of the type specified is described.
  • a fixed jaw is arranged on a vice body at one end and a movable jaw at the other end.
  • the drive consists of a power amplifier that acts on a screw spindle.
  • the arrangement is such that the crank is located on one side of the abutment at one end of the vice body and acts on the power amplifier on the other side of the abutment.
  • the movable jaw is first pushed forward via the screw spindle and the workpiece is clamped with a predetermined force. If this force or the torque applied to the crank is exceeded, a clutch disengages.
  • a power amplifier as used in the machine vice mentioned above, has become known, for example, from DE-PS 23 08 175.
  • the object is achieved in a simple manner by the invention.
  • the vice body, the slide and the jaws remain completely unchanged.
  • the abutment can also be used.
  • DE-AS 12 88 523 describes a machine vice in which the screw spindle is arranged inside the movable jaw.
  • the abutment is also housed inside the movable jaw, and the entire drive is above the clamping level.
  • a power amplifier is provided outside the movable jaw, the power amplifier then acting on the movable jaw via the screw spindle.
  • the screw spindle is located essentially on one side of the support surface and the booster is on the other side of the support surface, that a sleeve is provided which carries the support surface on an annular flange and whose bore penetrates an extension of the screw spindle that the booster acts on the extension, and that the booster can be connected to the sleeve, so that the booster is supported on the abutment via the support surface. days.
  • One part with the screw spindle is to be inserted into the abutment from one side, and the other part of the drive is connected to the first part from the other side, that is to say from the rear of the abutment.
  • the screw spindle can interact with the sleeve in various ways. It is expedient if the screw spindle can be rotated with the sleeve, but is axially movable within the limits of the sleeve under the action of the power amplifier. In itself, a non-rotatable sleeve would also be useful. However, the construction proposed above is preferred. As is known per se, a suitable roller bearing, for example a needle bearing, can be used to reduce the friction between the sleeve and the abutment.
  • a rotatable chamber is provided for the power amplifier.
  • the screw spindle extension projects into this chamber on the abutment side, while the crankshaft projects into the chamber on the crank side.
  • an internal thread is provided in the chamber in which the crankshaft is supported.
  • a disengageable clutch is provided in the chamber, the clutch limiting the torque applied by the crank to be transmitted to the chamber, as is known per se. This ensures that when the movable jaw moves, the screw spindle is rotated first, and that the clutch then disengages at certain clamping forces and the crankshaft acts on the power amplifier.
  • the chamber preferably consists of two parts screwed together, one part receiving the thread for the crankshaft and the clutch, while the other part is screwed to the sleeve.
  • the jaw 9 is fixedly arranged on the vice body 8 at one end.
  • the abutment 6 is provided, which receives the drive 28 according to the invention.
  • Carriage 29, which carries movable jaw 4, is mounted in vice body 8.
  • the feed movement for the slide 29 takes place by means of the screw spindle 1. This engages with the screw thread 30 in the spindle nut 10, which extends over the entire length of the spindle.
  • Fig. 1 shows that position of the machine vice 5, in which the jaw 4 is fully retracted.
  • the feed movement is initiated into the drive via the crank 3, which can be plugged onto the polygon 31.
  • the sleeve 11 is supported on the abutment 6 with the support surface 40 of the ring flange 7.
  • a gradation 34 is provided for transmitting the pressures of the screw spindle 1 to the sleeve 11.
  • the parts 19 and 20 together form the chamber 15 which receives the power amplifier 2, the details of which are not shown in detail.
  • the crankshaft 16 is held in the internal thread 17 of the part 19 and acts on the power amplifier when it is screwed into the part 19 or the chamber 15.
  • the coupling 18 in the chamber 15 consists of a ball 35 which is under the action of a spring 38 and which partially protrudes into a recess 39 in the part 19.
  • the force of the spring 38 determines which torque can be transmitted between the crank 16 and the part 19. If the set torque is exceeded, the ball 35 moves inwards against the force of the spring 38 and the crank 16 can be screwed into the chamber 15.
  • a swivel angle limiter 21 is provided, which essentially consists of an annular groove 22 in part 19, in which a pin 24 engages.
  • the annular groove has an end stop 23 (see FIG. 4), so that the pin 24 has a maximum swivel path of approximately 300 degrees. Since the pin 24 is mounted in the collar 26 and the collar 26 on the Polygon 27 is displaceable against the force of the spring 25 with six surfaces, it is possible to retract the adjusting ring 26 to the left against the force of the spring in the illustration in FIG. 2, the polygon 27 disengaging and in different positions on the hexagon 27 to fix. A total of five different positions (positions 1 to 5 of FIG. 4) can be assumed. In position 1, only a pivoting movement of 60 degrees is possible, ie only a slight actuation of power amplifier 2. In the other positions, however, the power amplifier is more effective.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Earth Drilling (AREA)

Claims (11)

1. Commande pour une mâchoire mobile (4) d'un étau de machine (5), comprenant une broche filetée (1) et un amplificateur de force (2) et pouvant être actionnée au moyen d'une manivelle (3), la commande disposée au-dessous du plan de serrage des mâchoires (4, 9) s'appuyant au moyen d'une surface d'appui (40) disposée sur une bride annulaire (7) de la commande, sur une butée (6) à l'une des extrémités du corps (8) de l'étau dont l'autre extrémité porte la mâchoire fixe (9), et la broche filetée (1) coopérant avec un écrou de broche (10) de la mâchoire mobile (4), caractérisée en ce que la broche filetée (1) se trouve essentiellement sur l'un des côtés de la surface d'appui (40) et que l'amplificateur de force (2) se situe de l'autre côté de ladite surface d'appui (40); qu'il est prévu une douille (11) qui porte sur une bride annulaire (7) la surface d'appui (40) et dont l'alésage (12) traverse un prolongement (13) de la broche filetée (1); que l'amplificateur de force (2) agit sur le prolongement (13); et que l'amplificateur de force (2) peut être couplé avec la douille (11) de manière que l'amplificateur de force (2) prend appui sur la butée (6) par l'intermédiaire de la surface d'appui (40).
2. Commande selon la revendication 1, caractérisée en ce qu'elle se compose essentiellement de deux parties dont l'une comprend la broche filetée (1) et la douille (11), alors que l'autre partie englobe les autres éléments de la commande, et que les deux parties peuvent être solidarisées sur la douille (11).
3. Commande selon l'une des revendications précédentes, caractérisée en ce qu'elle comprend un filetage (14) sur la face extérieure de la douille (11) pour la liaison avec l'autre partie de la commande, et que l'élément vissé sur la douille (11) peut être bloqué dans plusieurs positions.
4. Commande selon l'une des revendications précédentes, caractérisée en ce que la broche filetée (1) peut être tournée avec la douille (11) mais que, sous l'action de l'amplificateur de force (2), elle peut être déplacée axialement dans certaines limites par rapport à la douille.
5. Commande selon l'une des revendications précédentes, caractérisée en ce qu'elle comprend une chambre tournante (15) pour l'amplificateur de force dans laquelle dépasse, du côté butée, le prolongement (13) de la broche filetée (1) et, du côté manivelle, le vilebrequin (16), le vilebrequin (16) s'appuyant sur un filetage intérieur (17) de la chambre (15) et coopérant avec un dispositif d'accouplement (18) débrayable de la chambre (15), et le dispositif d'accouplement (18) limitant le couple de rotation pouvant être transmis par la manivelle (3) à la chambre (15).
6. Commande selon l'une des revendications précédentes, caractérisée en ce que la chambre (15) se compose de deux éléments (19, 20) assemblés par vissage, l'un des éléments (19) recevant le filetage (17) pour le vilebrequin (16) et le dispositif d'accouplement (18) et l'autre élément (20) étant vissé sur la douille (11).
7. Commande selon l'une des revendications précédentes, caractérisée en ce qu'elle comprend une limitation d'angle de pivotement (21) réglable entre le vilebrequin (16) et la chambre (15).
8. Commande selon l'une des revendications précédentes, caractérisée en ce que la limitation d'angle de pivotement (21) est constituée d'une part d'une rainure annulaire (22) avec butée d'extrémité (23) et, d'autre part, d'une tige (24) ou analogue qui dépasse dans la rainure annulaire (22), le déplacement possible de la tige ou analogue dans la rainure annulaire (22) pouvant être réglé librement et notamment par paliers.
9. Commande selon l'une des revendications précédentes, caractérisée en ce qu'elle comprend sur le vilebrequin (16) une bague de réglage (26) qui peut être déplacée axialement contre l'action d'un ressort (25) ou analogue et porte la tige (24) ou analogue, et qui peut être bloquée dans plusieurs positions angulaires sur le vilebrequin (16).
10. Commande selon l'une des revendications précédentes, caractérisée en ce qu'elle comprend une barre polygonale (27) entre le vilebrequin (16) et la bague de réglage (26).
11. Commande selon l'une des revendications précédentes, caractérisée en ce que la rainure annulaire (22) est disposée sur la face extérieure de la chambre (15).
EP89107420A 1988-05-06 1989-04-25 Commande pour un étau de machine Expired - Lifetime EP0340602B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8806051U 1988-05-06
DE8806051U DE8806051U1 (de) 1988-05-06 1988-05-06 Antrieb für einen Maschinenschraubstock

Publications (2)

Publication Number Publication Date
EP0340602A1 EP0340602A1 (fr) 1989-11-08
EP0340602B1 true EP0340602B1 (fr) 1992-07-01

Family

ID=6823803

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89107420A Expired - Lifetime EP0340602B1 (fr) 1988-05-06 1989-04-25 Commande pour un étau de machine

Country Status (6)

Country Link
US (1) US4934676A (fr)
EP (1) EP0340602B1 (fr)
JP (1) JP2758202B2 (fr)
KR (1) KR890017043A (fr)
DE (2) DE8806051U1 (fr)
ES (1) ES2034468T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5273264A (en) * 1992-12-18 1993-12-28 Safeway Machinery Industry Corp. Pneumatic quick vise
US6164635A (en) * 1999-05-21 2000-12-26 Chase; Donald Milling machine bench vise
US20070138724A1 (en) * 2005-12-16 2007-06-21 Black & Decker Clamp Device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3397880A (en) * 1966-05-10 1968-08-20 Kurt Mfg Company Vise clamp
DE2308175C3 (de) * 1973-02-19 1975-09-04 Saurer-Allma Gmbh, Allgaeuer Maschinenbau, 8960 Kempten Kniehebelkraftverstärker
IT1020738B (it) * 1973-09-17 1977-12-30 Saurer Allma Gmbh Dispositivo di immorsamento spe cialmente morsa a vite per macchine
IT1116739B (it) * 1976-06-14 1986-02-10 Arnold Franz Dispositivo di immorsamento,particolarmente morsa a vite per macchine
US4043547A (en) * 1976-12-10 1977-08-23 Chicago Tool And Engineering Company Precision machine vise
DE2710424A1 (de) * 1977-03-10 1978-09-14 Roehm Guenter H Spanneinrichtung, insbesondere maschinenschraubstock
DE2832427A1 (de) * 1978-07-24 1980-02-07 Franz Schoeffel Mechanischer druckerzeuger
DE7830221U1 (de) * 1978-10-11 1980-03-20 Arnold, Franz, 8960 Kempten Mechanischer kraftverstaerker
DE2909451C2 (de) * 1979-03-10 1982-06-16 Georg Kesel GmbH & Co KG, 8960 Kempten Spanneinrichtung, insbesondere für Maschinenschraubstöcke
IT1168021B (it) * 1980-10-22 1987-05-20 Saurer Allma Gmbh Dispositivo di bloccaggio, azionato pneumaticamente, in particolare morsa da macchina
DE3437403A1 (de) * 1984-10-12 1986-04-24 Saurer-Allma Gmbh, 8960 Kempten Hochdruckspanner
DE3438900C2 (de) * 1984-10-24 1986-08-21 Saurer-Allma Gmbh, 8960 Kempten Maschinenschraubstock
US4605208A (en) * 1985-04-04 1986-08-12 Durham Randy E Combination automatic and manual vise apparatus

Also Published As

Publication number Publication date
DE58901758D1 (de) 1992-08-06
ES2034468T3 (es) 1993-04-01
EP0340602A1 (fr) 1989-11-08
DE8806051U1 (de) 1988-06-30
KR890017043A (ko) 1989-12-14
JPH0215980A (ja) 1990-01-19
US4934676A (en) 1990-06-19
JP2758202B2 (ja) 1998-05-28

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