CS257111B1

CS257111B1 - Clutch and brake control device

Info

Publication number: CS257111B1
Application number: CS862053A
Authority: CS
Inventors: Vincent Zon
Original assignee: Vincent Zon
Priority date: 1986-03-24
Filing date: 1986-03-24
Publication date: 1988-04-15
Also published as: CS205386A1

Abstract

Ovládacie zariadenie lamelovej spojky a brzdy, určené hlavně pre pohon pracovných vretien usporiadaných na otočnom stole či hubni špeciálneho postupového obrábacieho stroja, pozostávajúce z ovládacieho hriadeia, přepojeného prostredníctvom unášacích ramien s vonkajšími lamelami a prostredníctvom ozubenia s vnútornými lamelami. Riešeným problémom je vytvorenie takej sústavy spojky a brzdy, ktorá by umožňovala na jedno upnutie obrobku tak jeho otáčavý pohyb, ako aj jeho kiudovú polohu bez potřeby premiestňovania obrobku z otočného na pevný vypínač. To sa dosahuje tým, že ovládací hriadel' je zložený z osadeného třňa opatřeného na osadenom konci osadenou dutinou, v ktorej je vložená tlačná pružina, druhý koniec osadeného třňa je opatřený závitom a na menšom priemere tohoto osadeného třňa je nasunuté valivé ložisko s kosoúhlým stykom opreté o čelo osadeného konca, potom dištančná vložka, ďalej druhé valivé ložisko, o ktoré je opreté čelo uzatváracieho třňa nasunutého svojou dutinou, upravenou na jeho vnútornej časti, na zostávajúci koniec osadeného třňa, ku ktorému je uzatvárací třň připevněný.A multi-plate clutch and brake control device, intended mainly for driving work spindles arranged on a rotary table or a special progressive machine tool, consisting of a control shaft, connected by means of drive arms with external lamellae and by means of gearing with internal lamellae. The problem to be solved is to create such a clutch and brake system that would allow for a single clamping of the workpiece both its rotational movement and its fixed position without the need to move the workpiece from a rotary to a fixed switch. This is achieved by the control shaft being composed of a seated mandrel provided at the seated end with a seated cavity in which a compression spring is inserted, the other end of the seated mandrel is provided with a thread and on the smaller diameter of this seated mandrel is a rolling bearing with an oblique contact supported on the face of the seated end, then a spacer, then a second rolling bearing against which the face of the closing mandrel is supported, inserted with its cavity, arranged on its inner part, on the remaining end of the seated mandrel to which the closing mandrel is attached.

Description

257111257111

Vynález sa týká ovládacieho zariadenialamelové] spojky a brzdy, tirčene] pře po-hon pracovných vretien usporiadaných naotočnom stole či bubni špeciálneho postu-pového obrábacieho stroja, pozostávajúce-ho z ovládacieho hriadeía, přepojeného pro-stredníctvom unášacích ramien s vonkaj-šími lamelami a prostredníctvom ozubenias vnútornými lamelami. Špeciálny postupový obrábací stroj vyža-duje, aby sa pracovně vretená v niektorýchpolohách otáčali a v dalších polohách, keďsa vykonává například priečne vftanie, fré-zovanie a pod., naopak neotáčali a naviac,aby boli pevne zablokované. Táto požia-davku možno splnit použitím známých elek-tromagnetických lamelových spojok a brzd.Elektromagnetické spojky si však vyžadujúpřívod prúdu cez otočný krúžok a keďžepracovně vretená a teda aj spojky či brzdysú namontované na otočnom stole či bub-ni, je potřebné realizovat přívod prúdu cezdalší centrálny otočný krúžok. Použitie zná-mých elektromagnetických lamelových spo-jok a brzd, vzhladom na značný počet pra-covných vretien na jednom stole či bubniznačné zvyšuje komplikovanost zariadenia.Keď přitom uvážíme, že každá elektromag-netická lamelová spojka či brzda si vyža-duje občasné nastavenie vzduchovej medze-ry medzi přítlačnou kotvou a elektromag-netom, pričom elektromagnety sú naviaccitlivé na pokles napatia v elektrickej sie-ti, použitie známých lamelových spojok, o-vládaných elektromagnetom, či hydraulic-ky pre pohon pracovných vretien na otoč-nom stole či bubni sa javí ako zložité a ne-vhodné.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an actuating device for a clutch and a brake, in the form of a working spindle arranged on a rotary table or a drum of a special post-machine tool consisting of an actuating shaft coupled by means of entraining arms with external lamellae and via gearing with internal slats. A special machining machine requires that the work spindles be rotated at some positions and, in other positions, when, for example, cross-cutting, milling, and the like are performed, they are not rotated and, in addition, firmly locked. However, this requirement can be met by the use of known electromagnetic multi-plate clutches and brakes. However, electromagnetic couplings require the flow of current through the rotary ring and when the working spindle and thus the clutches or brakes are mounted on the rotary table or drum, it is necessary to realize the current through the other central rotary ring. The use of known electromagnetic sipes and brakes, due to the large number of working spindles on one table or drum, increases the complexity of the device. When considering that each electromagnetic lamella clutch or brake requires occasional air gap adjustment between the pressure anchor and the electromagnet, the electromagnets being more sensitive to the drop in the voltage in the power supply, the use of known lamellar couplings, controlled by an electromagnet, or the hydraulic drive for the working spindles on the rotary table or drum appear complex and unsuitable.

Pre hoře uvedené účely je výhodnejšiepoužit ovládacie zariadenie lamelovej spoj-ky a brzdy podlá vynálezu, ktorého pod-stata spočívá v tom, že ovládací hriadel1 jezložený z osadeného třňa opatřeného1 na o-sadenom konci osadenou dutinou, v ktorejje vložená tlačná pružina, druhý koniec o-sadeného třňa je opatřený závitom a namenšom priemere tohoto osadeného třňa jenasunuté valivé ložisko s kosoúhlým sty-kom, opreté o čelo osadeného konca, po-tom dištančná vložka, ďalej druhé valivéložisko, o ktoré je opreté čelo uzatváracie-ho třňa, nasunutého svojou dutinou, upra-venou na vnútornej časti na zostávajúcikoniec osadeného třňa, ku ktorému je uza-tvárací třň připevněný skrutkou, či inýmspojom, pričom na dvojici uvedených vali-vých ložísk je namontované ozubené kole-so, opatřené po oboch stranách ozubením,s kterým je v zábere ozubenie vnútornýchlamiel. Osadený třň je svojiin osadenýmkoncom posuvné zavedený v centrálnom ot-vore telesa opatrenom jednok obvodovýmiotvormi s tlačnými pružinami opretými opřítlačný kotúč, zavedený v dutině, ktoréhoosadenie je opreté o osadenie upevňovacie-ho krúžku s pripevňovacími skrutkami akolíkmi a jednak unášacími ramenami von- kajších lamiel. Uzatvárací třň je posuvnézavedený v otvore osadenej príruby, na kto-rej výstupku je prostredníctvom dvojice va-livých ložísk s kosoúhlým stykom, otočnévložené dalšie ozubené koleso opatřené u-nášacími ramenami vonkajších lamiel.For the above-mentioned purposes, it is preferable to use a lamellar clutch and brake actuator according to the invention, the principle of which is that the control shaft 1 is composed of a shoulder pin fitted with a cavity in the seated end, a compression spring inserted, a second end of the spindle is provided with a threaded bearing and a smaller diameter of this shoulder spindle, a sliding bearing with an angular contact, supported on the front end of the shoulder, followed by a spacing sleeve, then a second roller bearing, which is supported by the end of the closing spindle, inserted by its cavity fixed on the inner part to the remaining taper of the shoulder to which the taper pin is fastened with a screw or other connection, wherein a gearwheel is provided on the pair of said roller bearings provided with toothing on both sides with which it is in engagement gears innerplate. The mounted mandrel is slideably inserted in the central opening of the housing provided with peripheral openings with compression springs supported by the gripping disc introduced in the cavity, which is supported by the mounting ring with the fastening bolts and pins and the drive arms of the outer blades. The closure mandrel is slideably introduced into the opening of the flange provided, on which protrusion is provided by a pair of angular contact ball bearings, a further toothed wheel provided with grip arms of the outer blades.

Pokrok a výhody ovládacieho zariadenialamelovej spojky a brzdy podl'a vynálezuspočívajú hlavně v jednoduchosti a spoleh-livosti ovládania, nezávislosti od kolísanianapatia elektrického prúdu a v neposled-nom radě, vzhladom na značný počet la-melových spojok a břzd v jednom otočnombubni aj v odstránení nastavovania vzdu-chovej medzery medzi přítlačnou kotvou atelesom elektromagnetu. Příklad vyhotovenia ovládacieho zariade-nia lamelavej spojky a brzdy podlá vyná-lezu je znázorněný na výkrese, na ktoromje zariadenie nakreslené v nárysnom ře-ze.Advantages and advantages of the control device of the clutch and brake according to the invention are mainly due to the simplicity and reliability of the control, the independence from the fluctuation of the electric current and, last but not least, to the considerable number of lable clutches and brakes in both the revolving gear and the removal of adjustment. the air gap between the pressure anchor of the electromagnet housing. An example of an embodiment of a control device of a slat clutch and a brake according to the invention is shown in the drawing on which the device is drawn in a front view.

Hlavnou častou ovládacieho zariadenialamelovej spojky a brzdy podlá vynálezu jeovládací hriadel 10, ktorý je prostredníct-vom unášacích ramien 16, 23 přepojený svonkajšími lamelami 17 a prostredníctvomozubenia 15 s vnútornými lamelami 18.The main part of the control device of the clutch and brake according to the invention is the control shaft 10, which is connected via the clamping arms 16, 23 by the clamping blades 17 and by the teeth 15 with the inner blades 18.

Ovládací hriadel 10 je zložený z osade-ného třňa 13, opatřeného na jeho osadenomkonci 23 osadenou dutinou 31, v ktorej jevložená tlačná pružina 30. Druhý koniecosadeného třňa 13 je opatřený závitom 36a na menšom priemere tohoto osadenéhotřňa 13 je nasunuté valivé ložisko 42 s ko-soúhlým stykom, opreté o čelo 22 osade-ného konca 23, potom dištančná vložka 21,ďalej druhé valivé ložisko 13, o ktoré jeopreté čelo 7 uzatváracieho třňa 5, nasu-nutého svojou dutinou 38 upravenou navnútornej časti 43, na zostávajúci koniecosadeného třňa 13 a připevněného k uza-tváraciemu třňu 5 skrutkou 9, či iným spo-jom. Na dvojici hoře uvedených valivýchložísk 19, 42 je namontované ozubené ko-leso 20 opatřené po oboch stranách ozube-ním 15, s ktorým je v zábere ozubenie vnú-torných lamiel 18, pričom osadený třň 13svojim osadeným koncom 29 je posuvnézavedený v centrálnom otvore 32 telesa 33.The control shaft 10 is comprised of a shoulder 13 provided with a cavity 31 at its end 23, in which a compression spring 30 is inserted. The other end-mounted shaft 13 is provided with a thread 36a on a smaller diameter of the seat 13 and a roller bearing 42 is inserted. with a thrust contact, supported on the face 22 of the set end 23, then a spacer 21, a second rolling bearing 13, by which the face 7 of the closure pin 5 pushed by its cavity 38 provided by the inner part 43 is supported on the remaining end-mounted mandrel 13 and attached to the clamping pin 5 by screw 9 or other joint. On the pair of mounts of said roller bearings 19, 42, a toothed rack 20 is provided provided on both sides with a tooth 15 with which the toothing of the inner blades 18 is engaged, with the shoulder 13 being slid in the central opening 32 of the body. 33.

Toto je ďalej opatřené jednak obvodový-mi otvormi 27 s tlačnými pružinami 26 ajednak unášacími ramenami 23 vonkajšíchlamiel 17. Tlačné pružiny 26 sú opreté opřítlačný kotúč 24 zavedený v dutině 43 te-lesa 33. Osadenie 45 přítlačného kotúča 24je opreté o osadenie 21 upevňovacieho krúž-ku 48 s pripevňovacími skrutkami 28 a ko-líkmi 34. Uzatvárací třň 5 je posuvné zave-dený v otvore 8 osadenej príruby 2, na kto-rej výstupku 1 je prostredníctvom dvojicevalivých ložísk 11, 14 s kosoúhlým stykomotočné vložené dalšie ozubené koleso 12opatřené unášacími ramenami 16 vonkaj-ších lamiel 17. Ozubené koleso 20 je oboj-stranne opatřené prstencovým, odíahčením41.This is further provided with circumferential openings 27 with compression springs 26 and with entrainment arms 23 of outer flaps 17. The compression springs 26 are supported against the support disk 24 introduced in the heat cavity 43. The shoulder 45 of the pressure disk 24 is supported on the shoulder 21 of the fastening ring. 48 with fastening bolts 28 and spokes 34. The closing pin 5 is slidably inserted in the opening 8 of the shoulder flange 2, on which the next gear 12 is supported by the drive arms by means of double-angled bearings 11, 14 16 of the outer slats 17. The toothed wheel 20 is provided with an annular, torsion-resistant recess 41.

Claims

The function of controlling the lamella clutch and the invention is as follows: The control shaft 10 is provided on its outer end with a pin 3 and a roller 4 or a control lever terminated by a roller. The gear 12 with the drive arms 16 is engaged with the drive of the electromotor and rotates continuously. As the pulley 4 of the control shaft 10 is loosened, then by the action of the compression spring 30, the gear wheel 20 which drives the spindles abutting the inner outer blades 17, 18 and rotates with the gear 12 rotates the spindle. As soon as the pulley 4 of the control shaft 10 engages a stop on the non-skewed cam, the control shaft 10 starts to push against the compression spring 30. The gear 20 first releases the pressed inner and outer lamellae 18, 17 of the connector and presses the inner and outer brakes 17 of the brake The rotation of the spindles is inhibited and once the actuator shaft 10 is moved through the toothed wheel 20 and the inner and outer lamellae 18, 17, the thrust wheel 24 is pressed against the compression springs 26 so that its shoulder 45 releases the mounting ring 23, then the gear wheel is 20 together with the clamps fully braked and sufficiently blocked against rotation of the spindles. When the shaft 4 of the actuating shaft 10 in the respective position of the rotary drum starts to leave the inclined stop, then the control shaft 10 by means of the gear 20 releases the outer and inner brake pads 17, 18 by further releasing the seating 45 of the pressure roll 24 on. the mounting ring 23 of the retaining ring 46 and the gear 20 starts to press the inner and outer clutch plates 18, 17. The gear 20, together with the spindles, grinds and when the pulley 4 of the control shaft 10 leaves the slanted stop, the spindle drive is fully connected to the electric motor. The fitted flange 2 enables convenient dismantling of the clutch and brake from the rotating drum, whereby the openings 6 serve for cooling. The control shafts 1 10 can also be moved directly by hydraulic cylinders because they only move and do not rotate. The locking ring 35 prevents the outer and inner lamellae 17,18 from falling out when disassembled when the shoulder flange 2 fixed to the top disk 37bob is released and is pulled upward by the actuating shaft 10, with the compression spring body 26 being screwed on lower drum drum 44. The entraining arms 16 of the outer lamellae 17 can be made with a gear 12 as a whole, or as a separate part with the screws 39 fixed to the gear 12. The stopping of the spindles on the rotary table in the respective positions allows one to be clamped in addition to the lathe and the coaxial drilling also transverse boiling, milling, grooving and the like. thus, operations that require a tightly locked spindle against rotation. This makes it possible to eliminate the complex and inevitably more or less disturbing inter-operative handling of the complicated single-purpose manipulators and to substantially improve the operational reliability of the processing machine. where it is reliable control of operation and blocking of machines. OBJECT Control device for clutch clutch, mainly designed to drive working spindles arranged on a rotatable or slim special processing machine, consisting of an actuating shaft, coupled by entraining arms with external lamellae and by toothing with internal characterized by the fact that the control shaft (10) is composed of a seated gripper (13) provided on the stepped end (29) with a cavity (31) in which the compression spring (30) is inserted, the other of the end-mounted mandrel (13) ) is provided with a thread (36) and, on a smaller diameter of the shoulder (13), a rolling bearing (42) with an angular contact is supported against the face (22) of the fitted end (29), then a spacer (21) and a second a rolling bearing (19), which is supported by a face (7) of the closure throat (5) slid by its cavity (38) arranged on its inner part (40), ending a spoke (13) fitted to which the closing pin (5) is attached, wherein a gearwheel (20) mounted on a pair of rolling bearings (19, 42), toothed on both sides by toothing (15), engages the toothing of the inner la-miel (18), the shoulder (13) is slidable through its central end (29), which is inserted in the central opening (32) of the body (33), which is supported by the peripheral openings (27) with compression springs (26) supported on a thrust disc (24) introduced into the cavity (43), the shoulder (45) of which is supported on the mounting ring (25) of the retaining ring (46) with bolts (28) and pins (34) and> the arms (23) of the outer slats (17), the closure member. (5) is slideably inserted in a bore (8) of a fitting (2) on which the bevel gear (12) is pivoted by a pair of rolling bearings (.11,, 14). ) provided with clamping arms (16) of outer slats (17). 1 sheet of drawings