CS248233B1

CS248233B1 - Valve head

Info

Publication number: CS248233B1
Application number: CS502385A
Authority: CS
Inventors: Jaroslav Bilik
Original assignee: Jaroslav Bilik
Priority date: 1985-07-04
Filing date: 1985-07-04
Publication date: 1987-02-12

Abstract

Upínacia hlavica ventilov, najma pre skúšobné zariadenie solenoidových ventilov, pozostávajúca z opernej príruby s prívodným kanálom, vyústěným proti prítlačnej prírube opatrenej aspoň jedným zberným kanálom a prřpojenej k piestnici priaimočiareho motora. Riešeným problémom je zdokonalenie konštrukcie upínacej hlavice s cietom zvýšit bezpečnost pri práci a hodnověrnost výsledkov skúšok. To sa dosahuje tým, že piest,nica (5) priamočiareho motora (6) je v jej koncovej časti opatřená osadením (7) pre opernú došku (’8), o ktorú je jedným svojim koncom opretá tlačná pružina (9), ktorá svojim druhým koncom je opretá o přírubu (10) vymedzovacieho náboija (11), opatřeného čelným vybráním (12) pre kotevnú maticu (13), pričom příruba (10) vymedzovacieho náboja (11) je v jej čelnej časti opatřená opěrnou plochou (15) pre ovládaciu tyč (16) prítlačnej príruhy (4) a v jej okrajovej časti nastavovanou skrutkou (18) orientovanou proti mikrospínačů (19), upevněnému na Upernej dcteke (8) tlačnej pružiny (9).A valve clamping head, especially for a solenoid valve testing device, consisting of a support flange with a supply channel, opening against a pressure flange provided with at least one collection channel and connected to the piston rod of a linear motor. The problem to be solved is to improve the design of the clamping head with the aim of increasing safety at work and the reliability of test results. This is achieved by the piston rod (5) of the linear motor (6) being provided in its end part with a shoulder (7) for a support plate (8), against which a compression spring (9) is supported with one of its ends, which is supported with its other end on a flange (10) of a limiting hub (11), provided with a front recess (12) for an anchor nut (13), while the flange (10) of the limiting hub (11) is provided in its front part with a support surface (15) for the control rod (16) of the pressure flange (4) and in its edge part with an adjusting screw (18) oriented against a microswitch (19) mounted on the support plate (8) of the compression spring (9).

Description

248233248233

Vynález sa týká upínacej hlavice ventilov,najímá pře -skúšobné zariadenie solenoido-vých ventilov, pozostávajúcej z opernej pří-ruby s prívodným kanálom, vyústěným pro-ti prítlačnej přírubě opatrenej aspoň jednýmzberným kanálom a pripojenej k piestnicipriamočiareho imotora. iP-odla známého stavu techniky bývá pří-tlačná príruba ,k piestnici priamočiarehomotora připojená priamo. Polohu prítlačnejpříruby snímá mikrospínač. Tlak vzduchuv celám rozvode bývá kontrolovaný tlako-vým spínačom. Signál, vysielajúci připrave-nost hlavice pre započatie skúšok, je odvo-dený od polohy prítlačnej príruby voči nie-ktorej z pevných častí hlavice.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a valve clamping head engaging a solenoid valve test device consisting of a support flange with an inlet duct, resulting in a thrust flange provided with at least one collection duct and connected to a piston rod. In the prior art, a pressure flange is attached to the piston rod directly attached to the piston rod. The microswitch detects the position of the pressure flange. The air pressure of the distribution system is controlled by a pressure switch. The signal transmitting the readiness of the test head is based on the position of the press flange relative to one of the fixed portions of the head.

Spolehlivá funkcia upínacej hlavice všakzávisí hlavně od prítlačnej sily, ktorou jeskúšaný ventil zovretý medzi opěrnou pří-rubou a přítlačnou přírubou. Přítlačná silamože podlá známých pro-striedkov byť kon-trolovaná velkosťou tlaku vzduchu na vstu-pe do priamočiareho motora. M6že však na-stat případ netěsnosti manžety, či iného-prvlku na priamočiarom motore, keď sa vy-vinutá sila izníži, čo má za následok posu-nutie prítlačnej príruby, čo sa registruje-ako funikčne správná veličina, no v skuto-č-nosti je přítlačná sila nedostatočná. Dosled-kotai toho- je ovplyvneníe správnosti výsled-kov sikúšiky, ako aj možnost preniku tlako-vej vo-dy -do elektrlckej napájacej -časti, kto-rá má 22-0 V.However, the dependable function of the clamping head depends mainly on the pressing force by which the tested valve is clamped between the support flange and the pressure flange. The pressure force according to known means can be controlled by the air pressure on the inlet to the linear motor. However, there may be a case of leakage of the cuff or other element on the straight-line engine when the force is reduced, resulting in the pushing of the pressure flange, which is registered as a functionally correct quantity, but in fact. force is insufficient. Last but not least, the correctness of the test results is influenced as well as the possibility of pressure water leakage to the electric supply part, which has 22-0V.

Uvedené nevýhody odstraňuje upínacia-hlaváca ventilov podl'a vynálezu, ktoréhopodstata spočívá v to-m, že piestnica pria-močiareho motora je v jej koncovéj ča-stiopatřená osadením pre opernú došku, o kto-rú je jedným svojim koncom opretá tlačnápružina, .ktorá svojim druhým koncom je o-pretá -o přírubu vymedzovacieho- náib-oja,opatřeného čelným vybráním pre kotevnúmaticu, pričom príruba vymedzovacieho ná-boja je v jej čelnej časti opatřená opěrnouplochou pre o-vládaciu tyč prítlačnej príru-by a v jej okrajovej časti nastavovacou-skrutkou orientovanou proti -mikrospínačů,upevněnému na opernej doske. Výhodou upínacej hlavice podlá vynálezuje, že pohotovotetný signál pre započatieskúšky tlakovou vodou je odvedený od vzá-jomnej polohy prítlačnej príruby a piestni--ce priamočiareho motora a -keďže medzi pří-tlačnou přírubou a piestni-cou je pružnýprvák, je pre vyslanle tohoto signálu sme-rodajná aj přítlačná sila. Pružný p.rvok slú-ži zároveň ako poistka proti roz-nym mož-nostiam nesprávného vloženia skúšanéhoventilu, posobí aj ako poistka v případe, žemedzi opěrnou a přítlačnou přírubou nie jenijaký ventil, aletoo aj v případe in-ej pře-kážky priamcičiareho posuvu. Z -konštruk-čného hladiska je výhodné,-keď přítlačná príruba je tvořená nosnoudoskou, ktorá je v strednej části opatřenázbernou kanálovou vložkou s horizontálny-mi zbernými třňml a vertikálnou čelnou clonou, pri-č-om zberná kanálová vložka jezhora a z -bokov obklopená elektrickou kon-taktnom skřipkou. Pri čelnom pohlade sateda elektrická .kontalktná skřínka podobáobrátenému písmenu „U“. Výhodou je v takomt-o případe účelné apriestorovo úsporné us-poriadanie prvkovprítlačnej příruby, pri -doko-nalom odclone-ní prípadnej vystirekujúcej tlakové] vody odčastí, ktoré sú pod elektrickým napátím. Příklad vyhotovenía upínacej hlavice ven-tilov podlá vynálezu je znázorněný na vý-kresOch, na ktorých obr. 1 představuje ná-rysný rez upínacou hlavicou a obr. 2 po-dor-y-sný pohlad na upínaciu hlaviicu ® re-zom jej ochranného krytu.The above-mentioned drawbacks are eliminated by the clamping-head of the valves according to the invention, which consists in that the piston-rod piston is fitted in its end portion with a shoulder for the support that is supported by one end of its compression spring. the second end of which is a flange of the delimiting lug provided with a front recess for the anchoring, wherein the flange of the delimiting hub is provided in its front part with an abutment for a control rod of a pressure flange and an adjusting lip in its edge portion; -screw oriented anti-microswitches mounted on an abutment plate. The advantage of the clamping head according to the invention is that the standby signal for the start-up of the pressurized water is diverted from the reciprocal position of the pressure flange and the piston of the rectilinear motor, and since there is a resilient element between the pressure flange and the piston, we are -Sale and downforce. At the same time, the resilient element serves as a fuse against various possibilities of improper insertion of the tested valve, it also acts as a fuse in the case of not supporting any other valve by means of a support and pressure flange, but also in the case of another straight line displacement obstruction. From the constructional point of view, it is advantageous when the pressure flange is formed by a load-bearing plate, which in the middle part is provided with a channel channel insert with horizontal collecting shanks and a vertical front screen, whereby the collecting channel insert is from the top to the bottom surrounded by electric contact pinch. At the front, the sateda electric .contact box similar to the letter "U". An advantageous advantageous and space-saving arrangement of the first-pressure flange is advantageous in this case, in the event of a good closure of possible spraying pressure water which is under electrical tension. An exemplary embodiment of a valve clamping head according to the invention is shown in the drawings, in which: Figure 1 is a cross-sectional view of the clamping head and Figure 2 is a view of the clamping head of the clamping head. .

Upínacia hlavi-ca ventilov je namontovanána nOsnej dcfeke 1 a pozo-stáva z opernejpríruby 2 s prívodným kanálom 3 tlákovejvody, vyústěným horizontálně proti -prítlač-nej prírube 4, prepojenej s piestni-cou 5priaimo-čiareho pneumomotora 6. Prepojenieje vyhotovené ták, že piestnica S je v jejkonco-vej časti opatřená osadením 7 pre o-pernú -došku 8, o ktorú je jedným svojimkoncom opretá tlačná pružina 9, iktorá svo-jim druhým koncom je opretá o přírubu 10vymedzovacieho náboja 11.The valve clamping head is mounted on the valve 1 and consists of an abutment flange 2 with a pressurized feed channel 3, resulting in a horizontally opposed flange 4 interconnected with the piston rod 5 of the pneumatic motor 6. S is provided at its end with a shoulder 7 for the abutment 8, which is supported by one end of the compression spring 9, which is supported by its second end on the flange 10 of the limiting hub 11.

Vy-medzovací náboj 11 je opatřený čelnýmvybráním 12 pre kotevnú maticu 13 a pod-ložku 14. Príruba 10 vymedzovacieho nábo-ja 11 je v jej čelnej časti opatřená prsten-covitou opěrnou plochou 15 pre štvorhran-nú ovládaciu tyč 16 prítlačnej príruby 4,suvne uložená v ložku 17. V otkrajovej častije príruba 10 vymedzovacieho náboja 11opatřená nastavovacou skrutkou 18 (ob-rázek 2], orientovanou proti mikrospínačů19, upevněnému na opernej doske 8. V okrajovej časti opernej došky 8 je tiežvytvořený o-tvor 20 pre vodiaci tfň 21 upev-něný na prírube 10 vymedzo-vacieho náboja 11. Skrutlkovým závitom vodi-aceho- třňa 21je zároveň prichyten-ý záchytný palec 22,ktorý slúži pre zach-ytenie ko-ncovej častiovládacej tyče 16 pri spatnom pohybe celejprítlačnej príruby 4. Přítlačná príruba 4 saskládá z nosnej doteky 23, ktorá je v jejstrednej časti opatřená zbernou kanálovouvložkou 24 s horiizontálnym-i zbernými třň-mi 25, tesneniami 26 a vertikálnou čelnouclonou 27.The intermediate hub 11 is provided with a frontal recess 12 for the anchor nut 13 and a washer 14. The flange 10 of the spacer hub 11 is provided in its front part with an annular support surface 15 for a square control rod 16 of the pressure flange 4, slidably The bearing hub flange 10 is provided with an adjusting screw 18 (FIG. 2) oriented against the microswitches 19 mounted on the support plate 8. In the peripheral portion of the support brace 8 there is also formed an assembly 20 for the guide rail 21. A clamping retaining finger 22 is provided at the same time by a threaded thread, which serves to retain the end portion of the control rod 16 in the event of poor movement of the full-pressure flange 4. from a support contact 23, which in its central part is provided with a collecting duct 24 with a horizontal collecting shank 25; 26 and the vertical curtain 27.

Zberná kanálová vložka 24 je zhora a zbokov obklopená elektrickou kontaktnouskřínkou 28 z elektroizolačného materiálu.V nej sú -elektrické kontakty pre skúšobnénapatie 220 V. Celá upínacia hlavi-ca je při-krytá odklápacím ochranným krytom 29,ktorý má blokovací mikrospínač 30. O-kre-mtoho- je ochranný kryt 29 vybavený vlastnouclonou 31 proti případnému rozo-strelku vo-dy z opernej príruby 2. Připravenost upínacej hlavi-ce pre zapo-čatie skúšok je -daná vzájomnou polohouprítlačnej príruby 4, a teda aj natetávo-vace]skrutky 18 voči mikrospínačů 19 upevněné-The collecting duct 24 is surrounded by an electrical insulating material enclosure 28 made of electro-insulating material. There are electrical contacts for the test voltage 220 V. The entire clamping head is covered by a hinged protective cap 29 having a microswitch 30. the protective cover 29 is provided with its own cover 31 against a possible water distribution from the support flange 2. The readiness of the clamping head for starting the tests is given by the mutual positioning flange 4 and thus the setting screws 18. fastened to microswitches 19

Claims

248233 S on the support plate 8 of the piston rod 5 directly to the pneumatic motor 8. After insertion of the test valve 32 between the support flange 2 and its insertion on the collector mandrel 23, when the electrical contacts are also connected, a command to initiate the sliding movement of the presser flange 4 directional support flange 2. In the normal course of clamping, the inlet throat of the valve 32 first touches the seal on the support flange 2, whereby further movement almost stops, while the inlet 5 a] s 3, the cylinders of the motor 8 continue to move to the stop of the positioning device. In this case they compress the spring 9 and use it to form the pressing force flanges 4 on the valve 32, which is transferred to the final seal on the final seal, the size of the pressing force being relatively precisely adjustable for example by extending or shortening the actuator] of the rod 16. In this position, the microswitch 19 is already closed and the clamping head the vial is ready for a couscous. Testing operations follow automatically after the microswitch 19 is turned on. If a valve 32 is inserted into the clamping head, the device is secured as follows: the pressure flange 4 extends freely, with the compression spring 9 not pressing. Thus, the adjusting screw 18 is not brought closer by the switch 19, which therefore remains switched on and blocks the start of the test. In another extraordinary case, when the valve 32 is supported by the entry flange 33 of the abutment flange 2, ie when it is eccentrically folded, the movement of the pressure flange 4 stops at the same time. its movement is stopped as soon as its threaded end 34 rests against the face 33 of the actuator 16. In this case, the adjusting screw also does not reach the microswitches 19, so that even in this case it blocks the tests. However, such a case can only occur with grossly negligent operators. In another particular case, when the air pressure of the supplied pneumatic actuator 6 drops, as the valve 32 is released, the spring 9 pushes the piston 5 and switches off the microswitch 19. This interrupts the supply of pressurized water to the valve 32 being tested, interrupting the supply of voltage and thereby nullifying ce-l'ú slúkus. On the apparatus of the invention, one, two or more paths of different types and sizes may be tested, preferably those in which the inlet orifice is coaxial or parallel to the outlet orifices. as well as a contact box 28 on a new presser plate 23 of the presser 4.

A valve clamping head, in particular a solenoid valve test device, comprising an abutment flange with an inlet duct, facing a thrust seal provided with at least one duct and connected to a piston rod of a straight-line motor, characterized in that the linear motor piston (5) (6) provided in the end portion thereof with a shoulder (7) for the abutment plate (8), wherein the compression spring (9) is supported by one end of the abutment (10) of the limiting hub (11) provided by the other end thereof; (12) for an annular nut (13), wherein the flange (10) of the intermediate hub (11i is provided with a support surface (15) for the control rod (16) of the pressure flange (4) therein and in it the edge part is adjusted by a screw (18) oriented against the microswitches (19) mounted on the support plate (8j of the compression spring) (9).

A valve clamping head according to claim 1, characterized in that the pressure flange (4) is formed by a support plate (23) provided with a collecting channel insert (24) in front of it and at least one horizontal collector pin. (25) and a vertical front screen (27), wherein the collection container (24) is surrounded by an electrical contact box (28) from above and from the sides. 2 sheets of drawings