DEP0020565DA - Weld limiter for resistance welding - Google Patents

Description

Heller & ihiappich G. ^Abil: Uasehinenf abrlk Augsburg ^1; Ulaer- Str.

ΡΟΠ Κ rl ^ A ^^ T ^ Ί / I "λΊ 'λ ρ ~ ϊ νι' - ^ CS _γ ~ ■" -τ Ί 1 ^ P PW ΪΤΊ "ί ~ ρ

Sweat limiter for resistance smoldering exercise.

Purely electrical resistance welds are axitonatiscii acting welding limiters ^: used, seizes that; ^: the 'welding sides so small; are that they can no longer be detected with the hand control; .. "/ bind, · be .that the welding conditions' are so peculiar that - 'they cannot be checked from the outside' at all - without further ado. , / v.-. ■ "•" ι e -έ .B. at Iielchtnetalj .. -sei. es- e.us ■ other.. reasons. For this ■ - have already been proposed; den-. ■; various.Dehiedencten.Terwechsel ■ during the Eehweiß-s .au-sgtehehi '; switch, · which depends on: the side, on the current strength; - (Prlaar, secondary), on the voltage ., from the temperature, from the amount of energy carried out, etc., or from longer such EaIztorsn are active "." Di ^; e practical execution has turned out to be ^: from ce ~ a simplest devices. ξ, B. With 'Ührv ?erk, delay relay or electromagnetic switch, on the most compact and, the price -der. Gansen's 'welding system has been completed'! Such a development celg-t how difficult it is to find a simple, cheap and yet highly reliable solution to this problem, on which 'the quality' of the 'welding' depends.

The invention. returns. 'again su desj' · einf 8, chen Prinsip. ' the. Welding limit with one of the secondary ε tr ο ξ. most expensive: '. Electroinagnetic switch with U-shaped Magnetsn 'and iuxtgedäiiipftezn armature-stroke. ... Here, on the one hand, a; .certain. * ^: - Eand from empirical valuesD adjustable side drainage produced, on the other hand, a control of the actual welding process. the coolest way over the welding current. - "exercised,"the-; deviations in the conditions from which the experience values. originate-

- 2 -. ■

men, / considered ,. ™ ie .: 'z ..E'. ^ GtraffiEch-'ankrin'gen. im llets; ^, / increased. Resistance from Stanb, Lcick, etc.

The 'for this. Devices developed were, however, unsatisfactory, so that cieaesn basically unsuitable αεί and sii; the complicated ear connections passed over. ' The invention liegtnun the Erlienntnis 'su basically,' ,. that 'the well-known simple device' only minor, but its function ■ .wesentlich- influencing ^one '' changes bediirfen ^ to ertigen, sie.-su vollv ^{"SchweiDbegrensem;} su > make / The .damit ersielbare economic success .is \ _':;;; / -; extremely hO'Chj "-eil an eye izleines.... simple and cheap device was created, the start of a trickle just - very ^ elnen ;; Part of the. Gch \? EiEgeräto! Rusts and thereby works reliably λ despite the fact.

Eggs for / is - loyal ,. that the weld side of very small values, '' ie about 0.05. Seconds upwards, within a fairly precise limit, must be adjustable. The 'cichert.- ■ not only Inlrseste times but -also lileinste Eaugrößen and: ■' ■ slightest Dämpfungahräfte, ^.At; According to the invention, the Zveok are the mutually opposite contact surfaces of the two mag- nets

netpole and dee anlzers on the direction of movement bevelled and hajltevi on both sides of the Eol .jevraile equal distance from each other. As a result, the anchor receives any necessary ■ Eb ^ eR? U " ^x: "! ^Q T! And thus creates the- 'basis for the established "Fordexung":.' In addition, the! Fegnetkraft \ ~ ahrendde,; stroke, is more uniform. " The attitude of the ϊϊθ.ββθ .. to be moved is required in \? Eitej? Bildune 'of the inventive idea that the drum for air damping is a; is graphite. beBteat. Graphite not only has ^ a '■■' little ..BpesificcneG. On the face of, but also the torstig of SeIb - ^ + - 'scaling .. It' ^{1 also} contributes to "compliance", the size, "

if a cylinder for the air damping by the air gap is variable ' _: ', "/ ξυ: 1 can be adjusted along with the magnet and the magnet, see Ij '. about / a' visual drive of grooves' or 'an initial release cam from the upper side .. With: the' air gap change can -be'the side boundary · yehr: finely set, while, the degree of throttling ^ for ^: cLie ^: attenuation die: ["';■' ■ '■■. ■■ G-robregulerung results,

To the 'selmelleh bookkeeping .; des EoIuens; serves; it '' when in ^·;,:;: .. training, the Erfindungsgedankenβ ^of:. Alliier with .dem Koluen ..; ,, ■ · 'a one located in Eolbeii Ean'al · beim- ¹ Bämpfun ^ sliub: - · ¹ ■.,. Negotiable organ! hanging. Different _; with his' EoIb ens tange solved ,, T78.S: are still "accelerated by" Iiänn, ■ that siclvuer.: Anchor ■ during damping snub susätslich in per se known Yieise .- ■ ·>; ■■■ · ■ 'moved against the force of a spring,.

An embodiment of the invention ± tit in .the 'drawing' shown. Seigen it

Fig. 1 an AiifriiS in section,

Fig .; 2 is a side view,

Fig. ' .3; a, ochaltschesa.

The U-iron 2 is clamped on the upper arm 1 of the welding device, the eyelet pole faces 3 as well as the surface 4 of the armature 5 for movement .. beveled ■ '■ are the Ankei> .5 ■ carries a piston rod 6 with Einein valve plate 7. the spear 6 is loosely inserted through a graphite piston S, ■ ■ ■:. bseitst of a Ilanal'Q the ^by.: ϋτη established connection / "smechen .den! vom Holben 8 im · Z3 ^ 1inder. 10 included eaaia. v. and the 'outside air is drawn in': the armature 5 through the / plate '.?. locked, 'Eoclass ¹ the air under the Holben only through the'.

11 throttle can be adjusted ¹ , eier values, by adjusting screw · 12 can be set _; 'Y7as ^: .the attenuation results. When the '; // - U-iron 2.uniaagrietisch vrird ·, in particular.by-the Jlraft,' .- ''"■ the ϊ ¹ e-the 13th 'quickly air -dux'ch the hole 9 n % ch'btrömen,; so & aßx deriColben 8 in its. outlet; SIa ₁ ^ e · surliclrfallx. · "resp. . duich · the -? '.. "- j eäer ¹⁵ suriicicgesclioljen rird .Hit your Anchors 5 is a Eontaktpol moved · 14 sum shutdown of .SchweißEtrones' The ZTiinGer '· 1D _· is via a driver 17' and again 18 through a turning position 15 with easting device 15 in small steps in the direction of movement of the armature and thus also the armature 5 'over the Yentl plate Y ...' and 'rod 6.'.

laugh .. Switching on 'the' main switch 19 flows- Stros ^ over ■ '' ■ the "Yorschlita 20 and actuates the main contactor; 21, ■ '" so that the :' ^: -. SchvTeißstrom ■■ activated τ? Ίΐ'α. · Closes the ^: EontB.kt 14 des. ". ■ Welding limiters _o .. so the ¥ orscliüts 20 interrupts the circuit in the main gate 21 and thus the tail stream. Opens the sequence ^: --'- ·; ' also 'der-Eontakt 14 again, so the feed 20 remains over the;.;' Bridge 2 pounds sucked, 'up ^; the main switch 19 'is interrupted ;. ^; :

Claims (5)

Claims, 1) ScbA7e ± Bb: delimiter for'.Wider Etand3sch \ 7ei £ ung with. eineta ■ from öeku'ndärstrom controlled eJ "ektromagnetisehen Sehälter ^init: iT föraigem Magnolia and liubanker, characterized luftgeuäiripftein .dadurch ^ that die''zur mutual contact ¹ specific llrächen ', ---} of the two magnetic poles and the armature. . zv: r Anlj: ex * beveled with the correct movement and are kept the same distance from one another on both pole sides, 2) Seav / eißbegrenssr after Αιιερχτι'ςη "· 1, dadurcli gel ^ ennseichnet ;,. That the piston for the liiftdärapfung is made of graphite. O)--. ^: Weld limiter: according to claim 1, characterized in that the "cylinder for the 'air damping / snr air: gap" change "between magnet and AiÄer is adjustable, ζ..33-. Via a screw drive from below or a Exzentemoch-en from the ^SSEI:.. th. 4) Scnv'eißbegrenaer according to. Claim 1, thereby ^! -. That the armature: .with dem-Holben via an organ which closes a .in the piston during the damping stroke organ. connected xbt. 5)> iichvveißbegrenzer according to claim A-, characterized in that the calibration. .'Anchor during the damping stroke also moves the force of a peder in a known \ 7eii - e 'ge ^ ε η.