CS210790B1

CS210790B1 - table-clamp

Info

Publication number: CS210790B1
Application number: CS578778A
Authority: CS
Inventors: Pavol Kucharek
Original assignee: Pavol Kucharek
Priority date: 1978-09-07
Filing date: 1978-09-07
Publication date: 1982-01-29

Abstract

Vynález sa týká úplňky na upínanie obrobkov pri vrtaní, frézovaní, obrážaní, hoblovaní a pod. Upinka podía vynálezu je použitelná vo všetkých oboroch priemyslu, kde sa požaduje bezpečné upnutie súčiastok doskovitého a válcového tvaru, najma však pre upínanie obrobkov na obrábacích strojoch pri mechanickom opracovaní. Upinka podía vynálezu pozostáva zo strmena, upínacej a nastavovacej skrutky, upínacej vložky otočné spojenej so strméňom pomocou čapu. Šošovkovitá hlava upínacej skrutky je uložená v opornej podložke, ktorá má gulovú opornú plochu. Na nastavovacej skrutke je naskrutkovaná matíca, ktorá zapadá svojou vonkajšou gulovou plochou do podložky s vnútornou gulovou plochou, pričom podložka je uložená v drážké strmena. Dotiahnutím, alebo uvolněním matice nastavovacej skrutky sa reguluje výška úpinky. Upínacia sila sa vyvodzuje upínacou skrutkou a je prenášaná strmenom posobiacim ako dvojraraenná páka cez upínaciu vložku na ob robok.The invention relates to a complete set for clamping workpieces during drilling, milling, shaping, planing, etc. The clamp according to the invention is applicable in all branches of industry where safe clamping of plate-shaped and cylindrical components is required, but especially for clamping workpieces on machine tools during mechanical processing. The clamp according to the invention consists of a yoke, a clamping and adjusting screw, a clamping insert rotatably connected to the yoke by means of a pin. The lens-shaped head of the clamping screw is mounted in a support washer, which has a spherical support surface. A nut is screwed onto the adjusting screw, which fits with its outer spherical surface into the washer with an inner spherical surface, while the washer is mounted in the groove of the yoke. The height of the clamp is regulated by tightening or loosening the nut of the adjusting screw. The clamping force is generated by the clamping screw and is transmitted by a yoke acting as a double-bar lever through the clamping insert to the workpiece.

Description

Vynález sa týká úpinky na upínanie obrobkov pri vrtaní, frézovaní, obrážaní, hoblovaní a pod. Vynález jě použitelný vo všetkých oboroch priemyslu, kde sa požaduje bezpečné upínanie súčiastok doskovitého a válcovitého tvaru, najma však pre upínanie obrobkov na obrábacích strojoch pri mechanickom obrábaní.The invention relates to a clamp for clamping workpieces in drilling, milling, shaping, planing and the like. The invention is applicable in all fields of industry where it is desired to securely clamp components of a plate and cylindrical shape, but in particular for clamping workpieces on machine tools during mechanical machining.

Doteraz používané úpinky pre upínanie obrobkov majú nevýhodu v tom, ze pri dotiahnutí úpinky dochádza vo vačšine prípadov k priamkovému styku medzi upínacou plochou obrobku a strmeňom úpinky. To je příčinou, že pri vyšších režných sílách móže dojsť k posunutiu obrobkov. Na druhej straně dosiahnutie plošného styku medzi strmeňom úpinky a obrobkom je u doteraz známých úpiniek velmi obtiažne a zdíhavé.The hitherto used clamps for clamping workpieces have the disadvantage that in most cases the clamping of the clamping means a direct contact between the clamping surface of the workpiece and the clamp of the clamping. This causes workpieces to be shifted at higher power. On the other hand, achieving the surface contact between the clamp of the toe and the workpiece is very difficult and time-consuming in the previously known clamps.

Uvedené nedostatky doteraz známých úpiniek v podstatnej miere znižuje úpinka pozostávajúca zo strmeňa, upínacej a nastavovacej skrutky, upínacej vložky otočné spojenej so strmeňom pomocou čapu. Hlava upínacej skrutky je uložená v opornej podložke s gulovou opornou plochou. Na nastavovacej skrutke je matica, ktorej dotiahnutím alebo povolením sa nastavuje výška úpinky.Said drawbacks of the prior art pins are substantially reduced by a plug consisting of a caliper, a clamping and adjusting screw, a clamping insert rotatably connected to the caliper by means of a pin. The head of the clamping screw is housed in a support washer with a spherical support surface. There is a nut on the adjusting screw whose tightening or loosening adjusts the height of the clamp.

Úpinka podlá vynálezu je prakticky použitelná najma z híadiska rýchleho a bezpečného upnutia obrobkov. Úpinka umožňuje bezpečné upnuťie ako rovinných i válcových ploch obrobku,The clamp according to the invention is practically applicable, in particular in terms of fast and secure workpiece clamping. The clamp enables secure clamping of both planar and cylindrical surfaces of the workpiece,

Čo sa dosiahne univerzálnou upínacou vložkou.What is achieved with a universal clamping insert.

Příklad prevedenia je znázorněný na výkrese obrázok č. 1, kde je úpinka v nárysnom pohlade a jeho čiastočnom řeze, a obrázok č. 2, kde je zobrazená v pódorysnom pohlade.An exemplary embodiment is shown in the drawing, FIG. 1, where the clamp is in a front view and a partial section thereof, and FIG. 2, which is shown in plan view.

Úpinka pozostáva zo strmeňa ktorý je na jednom konci opatřený závitom pre naskrutkovanie upínacej skrutky 2. Druhý koniec strmeňa _1_ je prefrézovaný tak, že strmen má tvar vidlice 1 2. Upínacia skrutka 2 má hornú část ukončenu štvorhranom 10 pre nasunutie vidlicového klúča a spodnú část šošovkovitou hlavou 1 1 , ktorou ma skrutka 2_ opiera o opornú podložku 6^, uzatvorenú krytom _7· Drážkou 13 strmeňa _1_ prechádza nastavovacia skrutka 3^, ktorej hlava 20 je uložená v T drážke upínacej plochy obrábacieho stroja /napr. vrtačky, frézovačky a pod./. Nastavovanie výšky úpinky sa prevádza pomocou matice _5 riaskrutkovanej na nastavovacej skrutke 3^ Matica _5 sa stýká svojou vonkajšou gulovou plochou 14 s vnútornou gulovou plochou 15 podložky 4 a vytvára tak kíbové spojenie strmeňa Upínacia sila sa vyvodzuje upínacou skrutkou 2 a prenáša sa strmeňom _1_ pósobíacim ako dvojramenná páka na upínaciu vložku 9^, otočné spojenu so strmeňom _[ pomocou čapu 8.The clamp consists of a yoke which is threaded at one end to screw in the clamping screw 2. The other end of the yoke 11 is milled so that the yoke has the shape of a fork 1 2. The clamping screw 2 has an upper part terminated by a square 10 for sliding the fork wrench and the lower part of the lentils. An adjusting screw 3 extends through a groove 13 of the yoke 13, the head 20 of which is mounted in the T groove of the clamping surface of the machine tool (e.g. drilling machines, milling machines etc. The adjustment of the height of the clamping is carried out by means of a nut 5 screwed on the adjusting screw 3. The nut 5 contacts its outer ball surface 14 with the inner ball surface 15 of the washer 4 to form a yoke joint. a two-arm lever for the clamping insert 9, pivotally connected to the yoke by means of a pin 8.

Claims

SUBJECT OF THE INVENTION

A clamp consisting of a yoke connected by a threaded connection to a clamping screw which is supported by a support plate closed by a cover, the yoke having a right-hand groove in which an adjustment screw provided with a nut and washer is supported, resting against the upper surface characterized in that the thrust washer (6) has an inner spherical surface (19) formed into which a lens-like head (11) of the screw (2) is inserted, the nut (5) has a spherical outer surface (14) formed on the bottom; the washer (4) of the inner spherical surface (15) and the clamping insert (9) are pivotally connected by means of a pin (8).

2. The clamp according to claim 1, characterized in that the clamping insert (9) is formed in the form of a square whose one active part forms transverse grooves (18) for clamping the workpieces and the working part is formed by a prism (17) for clamping the cylindrical workpieces. 2 sheets of drawings Severografia, n. P, plant 7, Most 210790 10 i 5

8 '17 9 Fig. 1 210790

FIG. 2