CH202016A

CH202016A - Machine vice.

Info

Publication number: CH202016A
Authority: CH
Inventors: Mossaz Albert
Original assignee: Mossaz Albert
Priority date: 1937-09-30
Filing date: 1937-09-30
Publication date: 1938-12-31

Description

Etau de machirre. Dans les etaux de machirres eonnus jus- qu'ä ce jour, les mors sont dune maniere ge- n6rale deplaces 1'un par rapport ä 1'autre au moyen dune vis unique Passant par 1e plan median des mors et entrainant 1e mors mo bile. Lorsqu'il s'agit d'ecarter ou de rappro- cher 1'un de Pautre les mors, ce mouvement n'est obtenu que par rotation de la vis et lorsqu'il s'agit de deplacements importants, an comprend aisement que cela occasionne des pertes sensibles de temps en raison de la lenteur des mouvements. D'autre Part, lors- que la vis de commande se trouve dans la Position exterieure extreme, elle travaille necessairement Jans des conditions fräs desavantageuses, puisque les efforts agiaux ne portent plus que sur un Petit nombre de filets et que, d'autre pari, elle est suscepti- ble de subir des efforts de flexion. Ces vis ne sont generalement pas protegees. Machirr vice. In the jaw vices known to date, the jaws are generally moved relative to each other by means of a single screw passing through the median plane of the jaws and driving the movable jaw . When it comes to moving the jaws apart or bringing them closer to each other, this movement is only obtained by rotation of the screw and when it comes to large displacements, it is easy to understand that this causes considerable loss of time due to the slowness of the movements. On the other hand, when the control screw is in the extreme outer position, it necessarily works under very disadvantageous conditions, since the agial forces no longer apply to more than a small number of threads and, on the other hand, , it is likely to undergo bending forces. These screws are generally not protected.

0n a dejä essaye d'eviter certains des in conv6nients precites, en creant un porte-mors mobile pouvant se deplacer avec la vis de commande dans 1e sens de -Page de cette derniere, en liberant momentanement deux Parties de 1'etau normalement solidaires l'une de 1'autre par exemple au moyen de vis de serrage. Ce dispösitif presente toutefois 1e grave inconvenient que si les deux Parties precitees ne sont pas solidement fixees en Position apres chaque deplacement, 1e ser- rage de 1'etau n'est pas assure. En plus de cela, 1'operation de däplacement du porte- mors et sa fixation oceasionne chaque fois des pertes sensibles de temps, resultant de la necessite de desserrer et resserrer ensuite chaque fois plusieurs vis ou ecrous. We have already tried to avoid some of the aforementioned drawbacks, by creating a movable jaw holder that can move with the control screw in the direction of -Page of the latter, by momentarily releasing two parts of the vice normally attached to it. 1'autre for example by means of clamping screws. However, this device has the serious disadvantage that if the two aforementioned parts are not solidly fixed in position after each movement, the clamping of the vice is not ensured. In addition to this, the operation of moving the jaw carrier and fixing it each time causes considerable loss of time, resulting from the need to loosen and subsequently tighten several screws or nuts each time.

Lobjet de la presente invention permet d'eviter tous les ineonvenients precites par 1e fait que 1e porte-mors mobile est monte ä coulisse sur 1e support du mors fixe et com- porte des organes de blocage permettant de 1e degager tres rapidement en vue de son de- placement sur son support et de le fixer ega- lement tres rapidement dans une Position choisie ä volonte. The object of the present invention makes it possible to avoid all the inconveniences mentioned above by the fact that the mobile jaw holder is slidably mounted on the support of the fixed jaw and comprises locking members allowing it to be disengaged very quickly with a view to its removal. movement on its support and also to fix it very quickly in a Position chosen at will.

Le dessin annexe represente, ä titre d'exemple, une forme d'execution de 1'objet de 1'invention, constituee- par un etau ä. Base pivotante, The appended drawing shows, by way of example, one form of execution of the object of the invention, consisting of a vice ä. swivel base,

La fix. 1 en est une elevation de cöte; la fix. 2 en est un plan; los fix. 3 et 4 sont des vues de detail A plus Brande khelle. The fix. 1 is a side elevation; the fix. 2 is a plan of it; the fix. 3 and 4 are detail views A plus Brande khelle.

L'etau represente est eonstitue par un Corps 10 sau lequel pivote une Partie 11 pre sentant une bare relativement grande, pour vue dune graduation permettant d'en regler exactement la Position par rapport ä la Par tie 10. Ces deux Parties sont retenues en Po sition par deux krous de serrage 12. Le Corps 10 comporte une Partie 13 constituant un talon d'appui pour 1a. Partie superieure de 1'kau. Un mors fixe 14 est solidaire de la Partie 11, ainsi quo d'un guide 15 sur lequel coulisse 1e porte-mors mobile 16. The vice represented is constituted by a body 10 without which pivots a part 11 presenting a relatively large bar, for view of a scale allowing the exact position to be adjusted with respect to the part 10. These two parts are retained in Po sition by two clamping krous 12. The Body 10 comprises a Part 13 constituting a support heel for 1a. Upper part of 1'kau. A fixed jaw 14 is integral with Part 11, as well as a guide 15 on which the mobile jaw holder 16 slides.

Comme represente ä, la fix. 3, ce dernier est constitue par deux Parties, le mors mo bile proprement dit 17 et son dispositif de commande 18. Le mors 17 comporte dann sa Partie mediane un perpage 19 servant de guide ä. 1'extremite dune tige centrale 20 tournant dann la Partie 18 et en kant soli da.ire axialement. Il comporte en plus de Part et d'autre du per@age 19 deux ouver tures taraudees 21 dann lesquelles p@nUrent des vis 22 tournant comme la tige 20 dann 1e Corps 18 et en kant a.xialement solida.ires. As represented by ä, the fix. 3, the latter is constituted by two parts, the actual movable jaw 17 and its control device 18. The jaw 17 comprises in its middle part a perpage 19 serving as a guide. 1'extremite dune central rod 20 rotating dann Part 18 and kant soli da.ire axially. It comprises in addition to either side of the per@age 19 two threaded openings 21 dann which p@nUrent screws 22 rotating as the rod 20 dann the first body 18 and kant a.xialement solida.ires.

Sur leer Partie logk dann le Corps 18, la tige 20 et los vis 22 comportent des Parties dentees respeetivement 23 et 24 et sont en Partie los aines avec los autres, de tolle ma ni6re quo si la tige 20 regoit im mouvement de rotation par son extremite a.rriere 25 fai sant saillie ä 1'exterieur du Corps 18, olle en. traine los deux vis 22 et provoque suivant 1e sens de rotation. 1e rapprochement an l'eloignenient des Parties 17 et 18 Tune de lautre. Une Partie renforck 26 de ha tige ?0 presente des pergages transversaux 27 permettant un serrage au moven dune bro che. Le rapport de dPmultiplication entre los engrenages 23 et 24 peut par exemple eire de 1 ä 3. Les deux Parties 17-18 sont recou vertes d'un carter. On the leer Part housed in the Body 18, the rod 20 and the screw 22 comprise respectively toothed Parts 23 and 24 and are in Part los groins with the others, in all manner quo if the rod 20 receives im rotational movement by its a.rriere end 25 protruding outside the body 18, olle en. drags the two screws 22 and causes the first direction of rotation. the bringing together and the distance of Parts 17 and 18 from each other. A reinforced part 26 of ha rod? 0 presents transverse pergages 27 allowing tightening at the moven of a brooch. The reduction ratio between the gears 23 and 24 can for example be from 1 to 3. The two Parts 17-18 are covered with a casing.

Le guide 15 comporte sur cliaque c@ite, sur sa face inferieure. une er6maillei-e 28 a.vec laquelle vient en Prise un verrou coit- The guide 15 has on cliaque c @ ite, on its lower face. an enamel 28 with which comes into engagement a latch

lissant 29 soumis ä 1'action d'un ressort 30 qui tend ä le maintenir continuellement en Prise avec eile. Par le fait qu'elles sont si tu6es sur la face inferieure du guide 15, los cremailleres sont entierement ä 1'abri de pro j ections de copeaux. Ces verrous sont loges dans des Parties da Corps 18 s'etendant sous 1e guide 15 en rega.rd de la glissiere. Ils sont commandes de 1'exterieur par des boutons rotatifs 31 montes sur los Parties du Corps 18 contenant los verrous 29. Chaque bouton comporte sur sa face en regard du verrou im Petit maneton 32 dispose excentriquement et qui s'engage dans une ouverture horizontale 33 du verrou. smoother 29 subjected to the action of a spring 30 which tends to keep it continuously in engagement with it. By the fact that they are si tu6es on the lower face of the guide 15, the racks are completely protected from chip projections. These locks are housed in Parts da Body 18 extending under the first guide 15 in rega.rd of the slide. They are controlled from the outside by rotary knobs 31 mounted on the Parts of the Body 18 containing the bolts 29. Each knob has on its face opposite the bolt a Small crankpin 32 disposed eccentrically and which engages in a horizontal opening 33 of the lock.

Dans la Partie mediane du guide 15 est prevu un pereage longitudinal destine ä ser vir de logement ä une broche 34 pour 1e erra.ge du mors mobile. In the middle part of the guide 15 is provided a longitudinal bore intended to serve as housing for a pin 34 for the erra.ge of the movable jaw.

Le fonctionnement de cet kau est 1e suivant: Lorsqu'une pike doit etre serree entre los mors 14 et 1.7. an degage le porte-mors mo bile en 1'empoignant sur ses deaix cötes late raux par los deux boutons rotatifs 31. en faisant tourner ceux-ei de maniere 'a degager los verrous 29 de3 deux crema.illeres 28. L'en semble 17 et 18 peut alors coulisser libre ment sur le guide 15 ju@qil'!@ proximitn iminN (liate de la pike ä serrer. 0n laisse alors los verrous 29 revenir en Prise avec los cre mailleres sous 1'action de leurs ressorts 30 et an actionne le bouton de commande mo lette de la tige 20 jusqu'ä ce quo le mors 1.7 touche la piece ä serrer. Le serrage est alors coinplete au moven de la broche 34 dont une extremite est introduite dans los ouvertures 2 7 de la Partie renforck 26 de la tige 20. The operation of this kau is as follows: When a pike must be tightened between jaws 14 and 1.7. an releases the movable jaw carrier by grasping it on its deaix lateral sides by the two rotary knobs 31. by rotating these so as to release the bolts 29 from 3 two crema.illeres 28. 17 and 18 can then slide freely on the guide 15 near the iminN proximity (liate of the pike to be tightened. 0n then lets the locks 29 come back into engagement with the cre malliers under the action of their springs 30 and an actuates the rotary control button of the rod 20 until the jaw 1.7 touches the part to be tightened. reinforcement 26 of the rod 20.

La demultiplication des deux vis 22 par los engrenages 23 et 24 permet d'augmenter la puissance de serrage de la meme maniere quo si an utilisa,it des vis ä faible pas. The reduction of the two screws 22 by the gears 23 and 24 makes it possible to increase the clamping power in the same way as if low-pitch screws were used.

Comme, Taufre Part, 1e mors mobile 17 est soumis ä 1'action de deux vis de com m < inrlz, dispo@ees sviuetriquement de pa.rt et d'autrü de von plan median. le serrage s'(-ffc,eiiie toujours dann los eonditions los meilleures. Dans toutes les positions des mors, c'est4- dire aussi bien pour une pike de Brandes que de petites dimensions, 1e serrage s'effec- tue toujours dans les memes conditions, car les vis de commande des mors ne peuvent ja- mais sortir de la Partie taraudee du mors mobile de plus de 20 mm par exemple. Ceci est obtenu par exemple au moyen dune vis darret (non representee au dessin) empe- chant 1'extremite de la tige centrale 20 de sortir de son logement 19. Cette disposition assure une Brande durk aux vis de com- mande du mors mobile. As, Taufre Part, the first movable jaw 17 is subjected to the action of two screws of com m <inrlz, arranged svimetrically on either side of the median plane. tightening always takes place in the best conditions. same conditions, because the jaw control screws can never come out of the tapped part of the mobile jaw by more than 20 mm, for example. This is obtained for example by means of a stop screw (not shown in the drawing) preventing the end of the central rod 20 from coming out of its housing 19. This arrangement ensures a firm grip on the control screws of the movable jaw.

0n peut naturellement prevoir de mul tiples variantes de detail de construction, sans pour cela sortir du cadre de Pinvention. 0n can of course provide multiple variants of construction detail, without departing from the scope of the invention.

C'est ainsi que 1'etau, au lieu d',etre ä Base rotative, pourrait etre fixe. This is how the vice, instead of having a rotating base, could be fixed.

La fixation du porte-mors pourrait etre effectuee au moyen de chevilles penetrant sous Paction de ressorts dans des ouvertures du guide 15. The fixing of the jaw holder could be carried out by means of pins penetrating under the action of springs into openings of the guide 15.

Claims

CLAIM Machine vice with mobile jaw holder, characterized in that the latter is mounted sliding on the support of the fixed jaw and comprises locking members allowing it to be disengaged very quickly with a view to its movement on its support and to fix it also very quickly in a Position chosen at will. SUB-CLAIMS 1 Vice according to claim, characterized in that the fixed jaw support is mounted at an adjustable angular position on a body comprising a support heel for it.

2 Vice according to the claim, characterized in that the support on which the jaw holder slides comprises on each of its sides a rack with which spring bolts come into engagement.

3 Vice according to claim, characterized in that the first support on which slides the first jaw holder comprises two series of openings allowing the fixing of the holder raors by means of dowels, Vice according to claim, characterized in that the first movable jaw is controlled by two screws arranged on either side of its plane of symmetry and rotating in a fixed part of the jaw carrier. Vice according to claim and sub-claim 4, characterized in that the two moving jaw control screws are driven simultaneously by means of gears. Vice according to claim and sub-claims 4 and 5, characterized in that a control pinion is arranged between the two control screws of the movable jaw, in the first plane of symmetry of the jaw carrier. 7 Vice according to claim and sub-claims 4 to 6, characterized in RTI ID="0003.0274" WI="3" HE="4" LX="1732" LY="892"> what the first drive pinion is Carried by a pin, one end is guided in the mobile jaw and the other end protrudes outside the fixed part of the jaw holder has a part allowing it to be operated by hand and a part for tightening it by means of of a tool. 8 Vice according to claim and sub-claims 4 to 7, characterized in that the drive gears of the screws are arranged in such a way as to give them a gear ratio intended for them. increase the clamping power of the vice. 9 Vice according to claim and sub-claims 4 to 8, characterized in that a stop device for the end of the control pin is provided in the movable jaw, so that it is impossible to remove the control screws from their housing in the mobile jaw beyond a determined value. 10 Vice according to claim and sub-claim 2, characterized in that the first jaw carrier comprises two control members of the rack locks which serve at the same time as maneuvering handles.