EP0037329B1 - Outil pour le démontage d'électrodes de machines à soudage par points - Google Patents

Outil pour le démontage d'électrodes de machines à soudage par points Download PDF

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Publication number
EP0037329B1
EP0037329B1 EP19810400476 EP81400476A EP0037329B1 EP 0037329 B1 EP0037329 B1 EP 0037329B1 EP 19810400476 EP19810400476 EP 19810400476 EP 81400476 A EP81400476 A EP 81400476A EP 0037329 B1 EP0037329 B1 EP 0037329B1
Authority
EP
European Patent Office
Prior art keywords
slide
tool according
slideway
tool
bearing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19810400476
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0037329A1 (fr
Inventor
Jean-Marie Neff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
De Dietrich et Cie SA
Original Assignee
De Dietrich et Cie SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by De Dietrich et Cie SA filed Critical De Dietrich et Cie SA
Publication of EP0037329A1 publication Critical patent/EP0037329A1/fr
Application granted granted Critical
Publication of EP0037329B1 publication Critical patent/EP0037329B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/023—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/04—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing keys

Definitions

  • the present invention relates to welding electrodes for spot welding machines, each comprising an electrode tip mounted on an extension intended in turn to be fixed in an electrode holder of the spot welding machine.
  • the tip is mounted on the extension and the extension in the electrode holder is provided by conical fitting.
  • the electrode tips are stressed both mechanically and electrically and that is why they must be replaced frequently.
  • the extensions have a significantly longer lifespan, they are also subject to wear, while for some welding work it may be necessary to use different forms of extensions, so that one must be able to exchange them more or less frequently.
  • the object of the invention is therefore to provide a tool for dismantling the electrode parts of a welding machine, making it possible to efficiently perform the dismantling work in a minimum of time even in places which are difficult to access and even if the parts to be dismantled are held together with considerable force.
  • the invention therefore relates to a tool for disassembling electrode parts for spot welding machines, these parts being assembled by conical fitting, characterized in that it comprises a first block forming a slide on which a surface is defined. support intended to come into contact with an annular radial shoulder integral with one of the parts to be disassembled, a second block forming a slide on which a second bearing surface is defined intended to come into contact with an annular radial shoulder integral with the other part to be disassembled and parallel to the first bearing surface, the blocks respectively having two conjugate sliding surfaces extending obliquely relative to the parallel bearing surfaces and means for causing the relative movement of the blocks.
  • FIG. 1 we see partially represented an electrode assembly E composed of an extension A and a point P assembled by conical fitting by means of a frustoconical end-piece provided at the end of the extension A and fitting into a blind hole frustoconical b of the electrode tip P.
  • the set E defines an axis XX. In the example shown, the latter is vertical, but it is understood that it can - have any orientation in space n depending on the location of the assembly E in a welding machine.
  • the tool according to the invention comprises a first block 1 in the form of a rectangular parallelepiped and constituting a slide. It comprises a cavity 2 of U-shaped cross section having side walls 3, a rear wall 4 and a bottom 5 which is inclined from front to back with respect to the large upper and lower faces of the block 1. On the side opposite to the wall rear 3, the cavity is open to the outside.
  • the bottom 5 of the cavity 2 constitutes a sliding surface 6 which has a longitudinal notch 7 with a rounded bottom.
  • this notch On the side of the sliding surface 6 this notch has a rim 8 which follows its contour and which constitutes a first bearing surface 9 intended to come into contact with the annular shoulder c or d of the assembly e'electrode E .
  • the rear wall 4 is pierced with a threaded hole 10 into which is screwed a push rod 11 provided with a knurled handle 12, this assembly constituting a screw jack.
  • Each side wall 3 has a rectilinear guide light 13 extending parallel to the sliding surface 6.
  • the tool also includes a second block 14 or slide which has the shape of a six-sided polyhedron, one of the large faces 16 (here the lower face) being inclined at an angle different from 90 ° relative to the small ones. faces of the block.
  • the latter comprises a cavity 17 delimited by two parallel lateral walls 18, a rear wall 19 and a bottom 20.
  • the latter has a very deep notch 21 thus forming by the rim 22 of this notch, a second bearing surface, the face oblique outer 16 constituting a second sliding surface.
  • the rear wall 19 is pierced right through perpendicular to the side walls 18 by a hole 23 intended to receive a retaining pin 24, the ends of which can slide in the side slots 13 of the slide 1 and which is force-fitted into the slide. 14.
  • a pneumatic or other drive device provided for example with a drive square which fits into a complementary bore 12a of the handle 12
  • the screw jack shown in Figs. 1 and 2 can be replaced by other types of motor devices such as pneumatic cylinders and others.
  • the tool shown in Figs. 3 and 4 is practically identical to the one just described. In this case, it is used to separate the extension A from the PE electrode holder roughly sketched out in FIG. 3 and in which is placed the conical shank e of the extension A.
  • the tool is provided with an accessory constituted by a collar 26 which can be tightened on the extension A using a screw 27.
  • the slide 1 and the slide 14 of this tool have the following differences with the tool of FIGS. 1 and 2.
  • the notch 7 has no rim, while its large outer face corresponding to the bottom 5 of the cavity 2 constitutes a bearing surface 9A.
  • the slide 14 does not have side walls and therefore has the shape of a fork, the branches 28 of which define a second bearing surface 22A intended to come into contact with one of the faces cc of the collar 26, this face being the equivalent of the annular shoulder c of FIG. 1.
  • the equivalent of the annular shoulder d of this same Fig. is here constituted by the end face d-d of the PE electrode holder on which the face 9A of the tool comes to bear.
  • the width of the collar 26 corresponds to the width of the cavity 2 of the slide so that it is also suitably guided in this slide during the disassembly of the electrode parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Resistance Welding (AREA)
EP19810400476 1980-03-28 1981-03-25 Outil pour le démontage d'électrodes de machines à soudage par points Expired EP0037329B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8006938A FR2479065A1 (fr) 1980-03-28 1980-03-28 Outil pour le demontage d'electrodes de machines a soudage par points
FR8006938 1980-03-28

Publications (2)

Publication Number Publication Date
EP0037329A1 EP0037329A1 (fr) 1981-10-07
EP0037329B1 true EP0037329B1 (fr) 1983-09-07

Family

ID=9240229

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810400476 Expired EP0037329B1 (fr) 1980-03-28 1981-03-25 Outil pour le démontage d'électrodes de machines à soudage par points

Country Status (3)

Country Link
EP (1) EP0037329B1 (enrdf_load_stackoverflow)
DE (1) DE3160838D1 (enrdf_load_stackoverflow)
FR (1) FR2479065A1 (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU83917A1 (fr) * 1982-02-03 1983-09-02 Wurth Paul Sa Dispositif d'accouplement d'une tige de percage du trou de coulee d'un four a cuve a l'outil de travail d'une machine de percage
DE3323038C2 (de) * 1983-06-25 1986-09-04 Bayerische Motoren Werke AG, 8000 München Vorrichtung zum Auswechseln des Endstücks einer Schweißelektrode
DE3515597A1 (de) * 1985-04-30 1986-10-30 Bayerische Motoren Werke AG, 8000 München Verfahren zum selbsttaetigen auswechseln von elektrodenkappen an schweisselektrodenschaeften sowie vorrichtung zur durchfuehrung des verfahrens
DE3822655C1 (en) * 1988-07-05 1990-02-01 Werner 8904 Friedberg De Semmlinger Method of automatically removing electrode caps from welding electrode shanks, and device for carrying out the method
FR2716824B1 (fr) * 1994-03-04 1996-05-24 Facom Extracteur à griffes coulissantes.
DE29507215U1 (de) * 1995-04-29 1995-06-29 Seppelfricke Haus- und Küchentechnik GmbH, 45881 Gelsenkirchen Vorrichtung zum Demontieren von Elektrodenkappen
JP4518758B2 (ja) * 2003-07-23 2010-08-04 Ｏｂａｒａ株式会社 定置式の電極チップ取り外し装置
CN103862420B (zh) * 2012-12-12 2016-12-21 江苏天工科技股份有限公司 用于装卸电极的螺旋装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB266581A (en) * 1926-06-07 1927-03-03 Henry Joseph Smith Improvements in jacks

Also Published As

Publication number Publication date
EP0037329A1 (fr) 1981-10-07
FR2479065A1 (fr) 1981-10-02
FR2479065B1 (enrdf_load_stackoverflow) 1984-03-02
DE3160838D1 (en) 1983-10-13

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