NO119995B - - Google Patents
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- Publication number
- NO119995B NO119995B NO15909565A NO15909565A NO119995B NO 119995 B NO119995 B NO 119995B NO 15909565 A NO15909565 A NO 15909565A NO 15909565 A NO15909565 A NO 15909565A NO 119995 B NO119995 B NO 119995B
- Authority
- NO
- Norway
- Prior art keywords
- piston
- pressure
- electromagnet
- switch
- return
- Prior art date
Links
- 238000003466 welding Methods 0.000 claims description 6
- 230000003111 delayed effect Effects 0.000 claims description 4
- 230000001052 transient effect Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/08—Systems for determining direction or position line
- G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
- G01S1/30—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being continuous waves or intermittent trains of continuous waves, the intermittency not being for the purpose of determining direction or position line and the transit times being compared by measuring the phase difference
- G01S1/306—Analogous systems in which frequency-related signals (harmonics) are compared in phase, e.g. DECCA systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Press Drives And Press Lines (AREA)
Description
Innretning til å forsinke gangen av pressestemplet ved hydrauliske presser. Device for delaying the stroke of the press piston in hydraulic presses.
Ved hydrauliske presser eller andre In the case of hydraulic presses or others
hydrauliske innretninger som hydrauliske hydraulic devices such as hydraulic
sveisemaskiner kreves det ofte at presse-verktøyets bevegelige del eller den bevegelige del av sveisemaskinen som under tom-gangen løper med stor hastighet, forsinkes welding machines, it is often required that the moving part of the press tool or the moving part of the welding machine, which runs at high speed during the idle, is delayed
før anlegget mot den gjenstand som skal move the device towards the object to be
presses eller sveises. Denne forsinkelse ut-føres på forskjellige kjente måter, for det pressed or welded. This delay is carried out in various known ways, for that
meste ved strupning av tilløpet for trykkvæsken til pressesylinderen eller ved strupning av utløpet av trykkvæsken fra pressestemplets tilbakegangsrom. Ved den egentlige presning er det dog nødvendig at strupningen oppheves og at den egentlige presse-operasjon ikke hemmes. Da strupningen mostly by throttling the supply of the pressure fluid to the press cylinder or by throttling the outlet of the pressure fluid from the return chamber of the press piston. During the actual pressing, however, it is necessary that the throttling is lifted and that the actual pressing operation is not inhibited. Then the strangulation
vanligvis avledes mekanisk fra stemplets usually derived mechanically from the piston's
bevegelse, foregår dens opphevelse en viss movement, its cancellation takes place in a certain way
tid før begynnelsen av den egentlige presse-operasjon. Derved vil der, omenn kun på en time before the actual press operation begins. Thereby, there will, albeit only on one
kort banestrekning, foregå en gjentagen short track length, a repeat takes place
akselerasjon av pressestemplet. Dette har acceleration of the press piston. This has
en ugunstig virkning, f. eks. ved sveise-pressing under sveising av gjenstander med an adverse effect, e.g. by welding-pressing during welding of objects with
små fremspring. Sveisestemplets bevegelige small protrusions. The welding piston's movable
deler har en stor masse og deres gjentagne parts have a large mass and their repeated
akselerasjon etter forsinkelsens opphevelse acceleration after the cancellation of the delay
skader de omtalte små fremspring på damages the mentioned small protrusions on
sveisekanten og fører til en feilaktig forbindelse. the welding edge and leads to an incorrect connection.
Denne oppfinnelse vedrører en innretning som ikke er beheftet med noen av This invention relates to a device which is not affected by any of
de omtalte mangler, og medfører for the mentioned lacks, and entails for
pressestemplet en forsinkelse som varer press stamp a delay that lasts
til den egentlige presseoperasjons begyn-nelse, dvs. oppheves automatisk først når until the start of the actual press operation, i.e. automatically canceled only when
pressekraften begynner å stige. the pressing force begins to rise.
En innretning ifølge oppfinnelsen er A device according to the invention is
vist i et utførelseseksempel på tegningen. shown in an exemplary embodiment of the drawing.
Den hydrauliske sylinder 1 har pressestemplet 2 som beveges f. eks. fra en kjent sleidestyring 3. Denne innstilles ved hjelp av to elektromagneter 4 og 5. Pumpen 6 leverer trykkvæske til fordeleren. The hydraulic cylinder 1 has the pressure piston 2 which is moved, e.g. from a known slide control 3. This is set using two electromagnets 4 and 5. The pump 6 delivers pressurized liquid to the distributor.
Stemplet 2 vil ved hjelp av armen 7 påvirke trekkstangen 8 som trykkes til sin øvre hvilestilling ved hjelp av fjæren 9. Trekkstangen 8 innstiller dobbeltkontakten 10 og 11 således at kontakten 10 i hvilestil-lingen og ved stemplets synkning avbrytes med stor hastighet og kontakten 11 åpnes. The piston 2 will, with the help of the arm 7, influence the drawbar 8, which is pressed to its upper rest position by means of the spring 9. The drawbar 8 sets the double contact 10 and 11 so that the contact 10 in the rest position and when the piston descends is interrupted at high speed and the contact 11 is opened .
Til det nedre rom 16 for pressestemplet er tilsluttet den innretning som utgjør oppfinnelsens gjenstand. Den består av det sylindriske stempel 12 som trykkes inn i sylinderen ved hjelp av en fjær 13. Stemplet styrer kontakten 14 som er avbrutt, når trykket virker på stemplet 12. Kontakten 14 er koblet i serie med de parallelt koblete kontakter 10 og 11 og med elektromagneten 4, og får strøm fra en elektrisk hjelpestrøm-krets (f. eks. fase X og nulleder). The device that constitutes the object of the invention is connected to the lower chamber 16 for the press piston. It consists of the cylindrical piston 12 which is pressed into the cylinder by means of a spring 13. The piston controls the contact 14 which is interrupted when the pressure acts on the piston 12. The contact 14 is connected in series with the parallel connected contacts 10 and 11 and with electromagnet 4, and receives power from an electrical auxiliary current circuit (e.g. phase X and neutral conductor).
Ved den stilling som tegningen viser er elektromagneten 4 under strøm og elektromagneten 5 er strømløs. Pressestemplet er i sin øverste stilling i ro, fordi trykk-væskens avløp fra rommet 16 er avsluttet ved hjelp av sleiden 3. På stemplet 12 virker bare det trykk som svarer til vekten av stemplet 2 med tilbehør. Dette trykk er ikke tilstrekkelig til å overvinne kraften i fjæren 13, så at kontakten 14 er i arbeids-stilling. Omenn elektromagneten 5 får strøm ved hjelp av betjeningstrykkbryteren 20, vil sleiden 3 føres til sin øvre stilling og stemplet 2 synke med hele sin hastighet som svarer til pumpeytelsen. Så snart armen 7 støter på anslaget 15, vil trekkstangen 8 forskyves og kontakten 11 avbrytes. Elektromagneten 4 blir strømløs og enden av vektarmen 17 vil få anlegg med regule-ringsanslaget 18. På grunn av vektarmens 17 synkning vil sleiden 3 stanse i en sådan nedre stilling at væskens avløp fra rommet 16 strupes ved hjelp av rillen 19. Derved inntrer der en øyeblikkelig forsinkelse hos stemplets 2 gang, og i rommet 16 stiger trykket som trykker stemplet 12 ut og av-bryter kontakten 14. Også når kontakten 10 ved stemplets 2 videre bevegelse forbin-des, forblir elektromagneten 4 strømløs, fordi kontakten 14 stadig er avbrutt og den forsinkede gang varer ved. Forpressingen av gjenstandene foregår med forsinket hastighet som eventuelt kan skje med formin-sket trykk. Så snart stemplet 2, når det får anlegg med den pressede gjenstand, vil stoppe, synker trykket i rommet 16 og fjæren 13 trykker stemplet 12 innover og for-binder kontakten 14. Elektromagneten 4 får igjen strøm og sleiden 3 føres til sin øvre stilling. Derved blir forsinkelsen opp-hevet, og der foregår ferdigpressing med fullt trykk. Etter at pressingen er fullført blir strømmen i elektromagneten 5 ved hjelp av betjeningsbryteren 20 og samtidig ved en ikke-inntegnet bryter, også avbrutt i elektromagneten 4. Ved strømavbrytelsen i elektromagneten vil sleiden 3 føres til sin nedre stilling ved virkningen av fjæren og stemplet 2 vil løftes til sin utgangsstilling hvori den stanses, så snart elektromagneten får strøm etter kontaktens 11 forbindelse. Som det vil fremgå av det foregående foregår i dette tilfelle opphevelsen av forsinkelsen uten noen ytterligere bevegelse av pressestemplet, så at overgangen fra langsom gang til den fulle pressing blir bløt og støtfri. In the position shown in the drawing, the electromagnet 4 is energized and the electromagnet 5 is de-energized. The press piston is in its uppermost position at rest, because the discharge of the pressure fluid from the chamber 16 is terminated by means of the slide 3. Only the pressure corresponding to the weight of the piston 2 with accessories acts on the piston 12. This pressure is not sufficient to overcome the force in the spring 13, so that the contact 14 is in the working position. Although the electromagnet 5 is energized by means of the operating pressure switch 20, the slide 3 will be moved to its upper position and the piston 2 will descend at its full speed which corresponds to the pump performance. As soon as the arm 7 hits the stop 15, the pull rod 8 will be displaced and the contact 11 will be interrupted. The electromagnet 4 becomes de-energized and the end of the weight arm 17 will come into contact with the regulating stop 18. Due to the lowering of the weight arm 17, the slide 3 will stop in such a lower position that the liquid drain from the chamber 16 is throttled by means of the groove 19. momentary delay in the stroke of the piston 2, and in the space 16 the pressure rises which pushes the piston 12 out and interrupts the contact 14. Also when the contact 10 is connected during the further movement of the piston 2, the electromagnet 4 remains de-energized, because the contact 14 is constantly interrupted and the delayed walk persists. The pre-pressing of the objects takes place at a delayed speed, which can possibly take place with reduced pressure. As soon as the piston 2, when it comes into contact with the pressed object, will stop, the pressure in the chamber 16 drops and the spring 13 presses the piston 12 inward and connects the contact 14. The electromagnet 4 receives power again and the slide 3 is moved to its upper position. Thereby, the delay is cancelled, and final pressing takes place with full pressure. After the pressing is completed, the current in the electromagnet 5 is also interrupted in the electromagnet 4 by means of the operating switch 20 and at the same time by a non-registered switch. When the current in the electromagnet is interrupted, the slide 3 will be moved to its lower position by the action of the spring and the piston 2 will is raised to its initial position in which it is stopped, as soon as the electromagnet receives power after the contact 11 connection. As will be apparent from the foregoing, in this case the cancellation of the delay takes place without any further movement of the pressing piston, so that the transition from slow travel to full pressing is smooth and shock-free.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3035364A GB1086733A (en) | 1964-07-31 | 1964-07-31 | Improvements in or relating to phase comparison radio navigation systems |
Publications (1)
Publication Number | Publication Date |
---|---|
NO119995B true NO119995B (en) | 1970-08-10 |
Family
ID=10306307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO15909565A NO119995B (en) | 1964-07-31 | 1965-07-26 |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE1276761B (en) |
ES (1) | ES315965A1 (en) |
GB (1) | GB1086733A (en) |
NO (1) | NO119995B (en) |
SE (1) | SE343951B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1308150A (en) * | 1969-11-10 | 1973-02-21 | Decca Ltd | Receivers for phase comparison radio navigation systems |
PL93282B1 (en) * | 1971-12-17 | 1977-05-30 | Societe D'etude Et D'application Des Techniques Nouvelles Neotec |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US949480A (en) * | 1909-07-12 | 1910-02-15 | Edward S Hodgson Jr | Dental nozzle. |
NL75105C (en) * | 1945-08-23 | |||
GB643381A (en) * | 1947-06-06 | 1950-09-20 | Decca Record Co Ltd | Improvements in or relating to apparatus for determining the maintenance of or departure from a predetermined relationship between two variables |
GB765573A (en) * | 1954-03-08 | 1957-01-09 | Decca Record Co Ltd | Improvements in or relating to radio navigation systems |
-
1964
- 1964-07-31 GB GB3035364A patent/GB1086733A/en not_active Expired
-
1965
- 1965-07-26 NO NO15909565A patent/NO119995B/no unknown
- 1965-07-30 SE SE1003765A patent/SE343951B/xx unknown
- 1965-07-30 ES ES0315965A patent/ES315965A1/en not_active Expired
- 1965-07-30 DE DE1965D0047869 patent/DE1276761B/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE1276761B (en) | 1968-09-05 |
ES315965A1 (en) | 1965-12-01 |
GB1086733A (en) | 1967-10-11 |
SE343951B (en) | 1972-03-20 |
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