CS274003B1

CS274003B1 - Clamping chuck with exchangeable jaw from top face

Info

Publication number: CS274003B1
Application number: CS201187A
Authority: CS
Inventors: Imrich Ing Toth
Original assignee: Toth Imrich
Priority date: 1987-03-25
Filing date: 1987-03-25
Publication date: 1991-04-11
Also published as: CS201187A1

Abstract

The solution concerns a chuck with change of jaws from front face. The principle of the solution consists in the fact that in the dividing surface (ρ), between a carrier (110) and a jaw (120) there is an expanding projecture (111) with an inner surface (112a) and an outer surface (112a) adapted for a contact with an inner bearing surface (121a), which is one of a pair of oppositely standing, at least partially parallel surfaces formed in a recess (122), and arranged diagonally onto the dividing surface (ρ) between the carrier (110) and the jaw (120) in the jaw (120). The second pair of these parallel surfaces, i.e. the outer bearing surface (121a) is adapted for a contact with a leading surface (111a) of the projecture (110) in the point of the biggest thickness (z).The chuck will simplify the cycle of manipulation with jaws during their replacement. This is possible when chucking from outside as well from inside. The production of connecting bond elements is simple and cheap and can be easily automated.<IMAGE>

Description

Upínacie skíučovadlo ' Riešenie sa týká upínacieho skíučovadla s výměnou čeíusti z čela.The invention relates to a chuck with replacing the jaws from the forehead.

Podstatou riešenia je to, že v deliacej ploché (^) medzi nosičom (110) a čeíusíou (120) je na nosiči (110) rozširujúci sa výstupok (111) s vnútornou plochou (112a) a vonkajšou plochou (112á) usposobený pre styk s vnútornou aosadacou plochou (121a), ktorá je jednou z dvojice proti sebe postavených aspoň čiastočne rovnoběžných ploch vytvořených vo vybraní (121), usporiadaných šikmo na deliacu plochu (^) medzi nosičom (110) a čeíusíou (120) v čeíusti (120), pričom druhá z dvojice týchto rovnoběžných ploch t.j. vonkajšia dosadacia plocha (121á) je usposobená prestyk s náběhovou plochou (lllá) výstupku (110) v mieste jeho najváčšej šířky (š).The principle of the solution is that in the separating flat (^) between the carrier (110) and the jaw (120) there is an expanding projection (111) on the carrier (110) with an inner surface (112a) and an outer surface (112a) adapted to contact an inner seating surface (121a) which is one of a pair of opposed at least partially parallel surfaces formed in the recess (121) disposed obliquely on the dividing surface (^) between the support (110) and the jaw (120) in the jaw (120), wherein the second of the pair of parallel surfaces i.e. the outer abutment surface (121a) is adapted to engage the leading surface (11a) of the projection (110) at its greatest width (w).

Skíučovadlom sa zjednoduší cyklus manipulácie s čeíusíami pri ich výměně a to pri upínaní za vonkajšok i vnútrajšok. Výroba prvkov spojovacej vazby je jednoduchá a lačná a íahko automatizovateíná.The chuck will simplify the cycle of handling the jaws when replacing the jaws when clamping for the outside and the inside. The production of fasteners is simple and fast and easy to automate.

274 274 003 003 (11) (11) (13) (13) Bl bl (51) (51) Int. Cl.⁵ B 23 B 31/12Int. Cl. ⁵ B 23 B 31/12

s výměnou čeíusti z čelawith the jaws changing from the forehead

V1V1

CS 274 003 BlCS 274 003 Bl

Vynález sa týká skíučovadla s výměnou čeíustí z čela, kde sa rieši usporiadanie spojovacej vazby.The invention relates to a chuck with the exchange of jaws from the face, where the arrangement of the coupling bond is solved.

Sú známe skíučovadlá, kde sa uskutočňuje výměna ich čeíustí z čela, pričom k zabezpečeniu spojovacej vazby sa okrem čelného prisúvania vymieňanej čeíuste uskutočňuje přídavný vzájomný pohyb čeíuste a nosiča v ich deliacej ploché ňalšim přídavným zariadením. K tomuto účelu sa najčastejšie využívá pohybový mechanizmus skíučovadla připadne ňalšie přídavné zariadenie, ktorého ovládanie sa uskutečňuje prívodom energie od ňalšieho zdroja. Týmito činnosíami sa cyklus výměny čeíustí predlžuje a naviac hlavně při automatizácii tejto výměny sa zvyšuje počet miest s možnosíami poruchy ako v mechanickej, tak i v riadiacej a kontrolnej časti technologického pracoviska.Chucks are known in which their jaws are exchanged from the forehead, wherein, in order to provide a coupling, an additional relative movement of the jaw and the carrier is carried out in their separating flat by a further device in addition to the frontal movement of the jaw to be exchanged. For this purpose, the chuck movement mechanism is most often used, or an additional device, which is controlled by supplying energy from a further source. These activities prolong the cycle of the jaw change and moreover, especially in the automation of this change, the number of places with the possibility of failure both in the mechanical as well as in the control and control part of the technological workplace increases.

Uvedené nevýhody zmierňuje upínacie skíučovadlo s výměnou čeíustí z čela, ktorého podstatou je to, že v deliacej ploché medzi nosičom a čeíusíou je na nosiči rozširujúci sa výstupek s vnútornou plochou a vonkajšou plochou uspósobený pře styk s vnútornou dosadacou plochou, ktorá je jednou z dvojice proti sebe postavených aspoň čiastočne rovnoběžných ploch vytvořených vo vybraní usporiadaných šikmo na deliacu plochu medzi nosičom a čeíusíou v čelusti, pričom druhá z dvojice týchto rovnoběžných plóch, tj. vonkajšia dosadacia plocha je uspůsobená pře styk s náběhovou plochou výstupku v mieste jeho najváčšej šířky. Upínacím skíučovadlom sa prisúvací pohyb čeíustí k nosičů skíučovadla využívá i k jej dosadnutiu na ten prvok spojovacej vazby, ktorý zabezpečuje přenos radiálnej upínacej sily a to ako při upínaní za vonkajšok, tak' i při upínaní za vnútrajšok. Naviac sa zvýši klopná tuhosí spojovacej vazby. Výroba ako nosiča, tak i čeíuste z híadiska automatizovateínosti činností při výměně je jednoduchá a lačná.The above-mentioned disadvantages are alleviated by a chuck with a jaw change from the forehead, which is based on the fact that in the separating flat between the carrier and the jaw there is an expanding projection on the carrier with an inner surface and an outer surface. at least partially parallel surfaces formed in a recess arranged obliquely on the separating surface between the carrier and the jaw in the jaw, the second of a pair of these parallel surfaces, i.e. the outer abutment surface is adapted to overlap with the leading surface of the projection at its greatest width. The clamping chuck utilizes the infeed movement of the jaws to the chuck carriers also to engage the chuck element which provides the transmission of the radial clamping force, both when clamping outside and inside clamping. In addition, the tilting stiffness of the linker is increased. The manufacture of both the carrier and the jaws in terms of automation of the exchange operations is simple and fast.

Na pripojenom výkrese je znázorněný příklad upínacieho skíučovadla, kde na obr. 1 je čiastočný priečny rez skíučovadlom a na obr. 2 čiastočný pohíad z obvodu v smere čeíustí skíučovadla.The attached drawing shows an example of a chuck where, in FIG. 1 is a partial cross-section of the chuck, and FIG. 2 shows a partial view of the periphery in the jaw jaw direction.

V deliacej ploché £ medzi nosičom IIP a čeíustou 12D skíučovadla 100 je na nosiči rozširujúci sa výstupok 111 tvaru rybiny a v čeíustí 120 vybranie 121. Vybranie 121 je tvořené dvorná proti sebe postavenými plochami a to vnútornou dosadacou plochou 121a a vonkajšou dosadacou plochou 121a, ktoré sú rovnoběžné a usporiadané šikmo s úhlom qCi voči deliacej ploché JLPretože uhol je rovný i uhlu rybinovitého výstupku 111, ktorý je symetrický voči deliacej ploché -SL. čelúsí 120 se móže otočií i o 180° pri zmene směru upínania, kedy vnútorná dosadacia plocha 121a dosedá bu3 na vnútornú plochu 112a, alebo vonkajšiu plochu 112á. K tomuto dosadnutiu dopomóže vonkajšia dosadacia plocha 121á, ktorá pri čelnom prisúvani čeíuste 120 k nosičů IIP preklzuje po nábehovej ploché 111á v mieste najváčšej šířky výstupku 111. Keď čeíusí 120 a nosič 110 dosadnú v deliacej ploché <£_, známým spósobom odpružený istiaci presúvač 114 nosiča 110 sa zasunie do istiaceho otvoru 122 čeíuste 120, čím je čeíusí 120 do okamžiku upnutia istená proti případnému spadnutiu. V pokračovaní vonkajšej dosadacej plochy 121a,' ktorá přetíná dosadaciu plochu y je na nosiči 110 spevňovací doraz 113, ktorý je s vonkajšou dosadacou plochou 121á v styku, a v súčinnosti s dotláčacou plochou Q' zachytává klopný moment M^, pósobiaci na čeíusí 120 při upínaní i obrábaní. Bočné sily pósobiace při obrábaní do čeíuste 120 sú zachytené telesom 130 jeho bočným vedením 132, ktoré je po výměně v styku s bočnou plochou 123 čeíuste 120.In the dividing flat between the carrier IIP and the jaw 12D of the chuck 100 there is a widening dovetail-shaped protrusion 111 in the jaw 120 and a recess 121 in the jaw 120. The recess 121 is formed by facing surfaces 121a and 121a, respectively. parallel and arranged obliquely with the angle qCi with respect to the divider flat 11, since the angle is also equal to the angle of the dovetail projection 111, which is symmetrical to the divider flat -SL. The jaw 120 can also rotate 180 ° to change the clamping direction, where the inner bearing surface 121a abuts either the inner surface 112a or the outer surface 112a. This is accomplished by the outer bearing surface 121a, which slides over the leading flat 111a at the point of maximum width of the projection 111 when the jaw 120 is pushed forwardly onto the carriers IIP. The carrier 110 is inserted into the locking opening 122 of the jaw 120, thereby securing the jaw 120 against being dropped until it is clamped. In continuation of the outer abutment surface 121a, which crosses the abutment surface y, the support 110 on the carrier 110 contacts the outer abutment surface 121a and, in cooperation with the abutment surface Q ', captures the tilting moment M ^ acting on the jaw 120 when clamping. and machining. The lateral forces exerted in the jaw 120 are absorbed by the body 130 by its lateral guide 132, which in contact with the jaw 120 side surface 123 after replacement.

Spojovacou vazbou se móže íahko zabezpečií i jednoduchá automatická výměna všetkých čeíustí 120 skíučovadla 100 naraz.A simple automatic replacement of all jaws 120 of the chuck 100 at the same time can easily be ensured by the coupling.

Claims

OBJECT OF THE INVENTION

Clamping chuck with a jaw change from a forehead, wherein there is a protrusion on one of them in the separating flat between the carrier and the jaw for a connection between them and in the other recess characterized in that in the separating flat (^ ¹ ) between the carrier (110) and with the jaw (120), on the carrier (110) the expanding projection (111) with the inner surface (112a) with the outer surface (112a) is adapted to overlap with the inner bearing surface (121a) which is one of a pair facing each other at least partially parallel surfaces formed in the recess (121) arranged obliquely on the dividing surface (ζ ³ ) between the carrier (110) and the jaw (120) in the jaw (120), the other of the two parallel surfaces, the outer bearing surface (121a) being adapted contact with the leading surface (110a) of the projection (110) at its greatest width (w).

2. A chuck with a jaw change from the face according to claim 1, characterized in that the jaw (120) is guided by a lateral recess (132) of the chuck body (130).

3. A chuck with a jaw change from the forehead according to claim 1 or 2, characterized in that on the side opposite to the inner abutment flat (121a) of the jaw recess (120) there is a reinforcing stop (113) parallel to it on the carrier (110). in contact with the outer bearing surface (121a) of the recess (121) of the jaw (120).

4. A jaw-changing device according to claims 1 to 3, characterized in that in the carrier (110) a two-position belay switch (114) is movably arranged transversely to the separating surface (4) and fits into the jaw opening (122) of the jaw (120). .

5. A chuck with a jaw change from a forehead according to items 1 to 4, characterized in that the jaws (120) are replaceable simultaneously.