WO2011069727A1 - Dispositif de meulage d'électrodes - Google Patents

Dispositif de meulage d'électrodes Download PDF

Info

Publication number
WO2011069727A1
WO2011069727A1 PCT/EP2010/065620 EP2010065620W WO2011069727A1 WO 2011069727 A1 WO2011069727 A1 WO 2011069727A1 EP 2010065620 W EP2010065620 W EP 2010065620W WO 2011069727 A1 WO2011069727 A1 WO 2011069727A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
guide insert
grinding wheel
electrodes
housing
Prior art date
Application number
PCT/EP2010/065620
Other languages
German (de)
English (en)
Inventor
Rolf Tamm
Original Assignee
Rolf Tamm
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 Rolf Tamm filed Critical Rolf Tamm
Priority to EP10774161.3A priority Critical patent/EP2509747B1/fr
Priority to PL10774161T priority patent/PL2509747T3/pl
Publication of WO2011069727A1 publication Critical patent/WO2011069727A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/16—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding sharp-pointed workpieces, e.g. needles, pens, fish hooks, tweezers or record player styli
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/30—Features relating to electrodes
    • B23K11/3063—Electrode maintenance, e.g. cleaning, grinding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/40—Making wire or rods for soldering or welding
    • B23K35/402—Non-consumable electrodes; C-electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B24B41/066—Work supports, e.g. adjustable steadies adapted for supporting work in the form of tools, e.g. drills

Definitions

  • the invention relates to an apparatus for processing welding electrodes with a grinding wheel driven by a drive motor via a shaft, which rotates in a cavity in a housing, openings being provided in the housing for guiding welding electrodes to be processed in a defined position relative to the grinding wheel.
  • Welding electrodes are made of a very hard and high temperature resistant material like tungsten. There are welding electrodes of different cross section. The welding electrodes run out in a point or in a cutting edge. This form of welding electrodes depends on the particular application. The tips of the welding electrodes wear during operation.
  • Welding electrodes can be bought without bevel or with a prefabricated tip. After use, the tip or bevel is worn. The welding electrodes are then reground or discarded. This is very expensive because of the high quality material.
  • a device capable of producing electrodes having a plurality (e.g., 6) of different electrode diameters at a variety of different tip angles (e.g., 4) and having a variety of lengths is a valuable, cost-saving tool.
  • a device for processing of welding electrodes with a grinding wheel is known.
  • the grinding wheel runs in a grinding wheel housing.
  • the device further has a housing attachment, which can be fastened to the grinding wheel housing and has at least one opening for guiding a welding electrode to be processed in a defined position relative to the grinding wheel.
  • the plane of the grinding wheel coincides substantially with the parting plane between the grinding wheel housing and the attachment.
  • the attachment may have a plurality of mutually offset, different openings for receiving different types of welding electrodes.
  • the attachment can also have a plurality of mutually offset openings whose axes intersect the plane of the grinding wheel at different angles.
  • a radial slot extending over the end face of the housing can be formed, through which a welding electrode for cutting can be applied to the circumferential surface of the grinding wheel.
  • the grinding wheel is fixed to a grinding wheel receiving, which in turn is connected to the motor shaft of the drive motor.
  • the entire device forms a portable unit.
  • the assembly uses next to a motor with a motor housing further housing parts: a motor flange which is screwed directly to the motor housing and at least one housing part, in which the openings are provided for guiding the electrodes.
  • the openings each extend from the side remote from the motor in the housing part in the direction of the grinding wheel, which rotates between the motor flange and the housing part.
  • further housing parts are placed.
  • the breakthroughs start on the side facing the engine.
  • the electrodes are always introduced to the motor in the breakthroughs.
  • the arrangement is comparatively long depending on the number of housing parts and requires a long drive shaft.
  • For attachment of the housing parts several other fastening components, such as screws, nuts, pins, etc. required.
  • a guide insert is provided, which is at least partially inserted into the breakthrough accurately and its inner diameter is adapted to the electrode diameter, that the welding electrode can be guided in the guide insert.
  • the invention is based on the recognition that it is sufficient to provide only one hole for each Anschleifwinkel and to provide this hole with a matching guide insert. Only one guide insert needs to be provided for each electrode diameter. The number of guide inserts is thus significantly less than the number of variations for Anschleifwinkel and electrode diameter. An arrangement with, for example, 6 holes for 6 Abschleifwinkel and 6 guide inserts for 6 different electrode diameter can then replace 36 holes, as they were required in the prior art.
  • the electrode is guided in the guide insert, the inner diameter just so adapted to the outer diameter of the electrode, that it is rotatable well therein.
  • the guide insert is at least partially inserted into the bore. This sets the grinding angle.
  • the guide insert preferably has a first insert part with an outer diameter which is larger than the inner diameter of the apertures and a second insert part with an outer diameter which can be inserted into the breakthrough with an exact fit. Then the first insert protrudes out of the hole and can be easily gripped.
  • the guide insert is connectable to a tubular holder for receiving a complete electrode. Even thin electrodes can break easily.
  • a tubular holder may be provided into which the electrode is inserted. The holder can be connected to the guide insert. This facilitates the handling of the electrode during the grinding process. The holder can also be firmly integrated into the guide insert.
  • the outer diameter and the inner diameter are adapted to each other.
  • the guide insert is elongate and a holder for short electrodes is included, which is held in the interior of the guide insert. The short electrode can then be inserted with the guide insert to the grinding wheel when the guide insert is sufficiently elongated.
  • the holder for short electrodes is formed by a collet.
  • the short electrode can be easily held in the collet.
  • the collet is then inserted into the guide insert or screwed.
  • the collet has an internal thread into which a threaded pin with a stop can be screwed to a selected depth, and the guide insert has a shoulder on which the stop rests.
  • the collet with the short electrode and the threaded pin is then inserted from behind into the guide insert until the stop rests on the shoulder.
  • the grub screw can be adjusted so that the short electrode protrudes to the desired extent so that it is easy to grind.
  • the holder of the short electrodes by means of a shrink fit, which is generated by means of heat.
  • FIG. 1 is an exploded view of a device for grinding.
  • Fig. 2 is a cross-section through an apparatus for grinding electrodes.
  • FIG. 3 is a section through the head of the device of Fig. 1 in detail.
  • FIG. 4a-d shows a guide insert according to a first embodiment in various representations.
  • 5a-d shows a guide insert according to a second
  • 6a-e show two housing parts, which are mutually an eccentric Axis are adjustable in different representations.
  • FIG. 7 is a cross section through a guide insert with a holder for
  • Fig. 8 shows the guide insert of Fig. 7 during grinding.
  • 10 generally indicates a device for grinding tungsten welding electrodes.
  • the apparatus 10 includes a motor having a motor housing 12, a motor flange 14 bolted to the motor housing 12, and a cylindrical housing portion 16 mounted on the motor flange 14.
  • the housing portion 16 is connected to the motor and motor flange in the manner described below.
  • a grinding wheel arrangement 18 rotates with a grinding wheel 20. It is also possible to use a grinding wheel arrangement with two grinding wheels.
  • the flange is provided with holes. About these holes, the motor flange 14 is screwed to the motor housing 12 in the manner shown in Fig.l manner with screws 24.
  • the housing part 16 is fixedly connected to the motor flange 14 with a screw 13 and a nut 15.
  • the housing part 16 has a through hole and the motor flange has a receptacle for the nut 15.
  • a disc-shaped recess is provided at the end remote from the motor 26 of the motor flange 14. This recess serves to receive the grinding wheel 20.
  • the shaft 30, with which the grinding wheel assembly 18 is screwed to the motor, is at the same time the motor shaft.
  • the shaft 30 has a front part 28. Furthermore, the shaft 30 with front part 28 has a bore 32 with an internal thread. This can be seen in FIG. In addition, an off-axis pin 34 is attached to the front part 28.
  • the Grinding wheel 20 of the grinding wheel assembly 18 is provided with a central bore and an associated, off-axis bore. The grinding wheel 20 is mounted on the shaft 30 and screwed with a screw 36, that the central bore is aligned with the axial bore 32 in the shaft 30 and the pin 34 protrudes through the off-axial bore in the grinding wheel 20. The rotation occurs about the axis of the central bores, with the pin 34 engaging the off-axis bore and transmitting the drive force to the grinding disc assembly 18.
  • the grinding wheel assembly 18 includes a coarse grinding wheel 20.
  • the grinding wheel 20 has a particularly fine edge 42.
  • This edge 42 serves to cut the electrodes with improved cutting behavior.
  • the edge is formed on the grinding wheel 20 so that it lies with one side in the grinding plane. In this way, one of the grinding surfaces, namely the upper grinding surface on the side of the edge 42, is larger than the opposing grinding surface.
  • the housing part 16 is provided with a central bore 54. This can be seen in Figure 3.
  • the central bore 54 is aligned with the bores of the Schleifusionnanordung 18 and the axis of rotation of the shaft 30.
  • a disc-shaped recess 62 is provided around the bore 54 around on the engine facing plan side 60.
  • a recess 58 is provided on the side facing away from the motor of the motor side 56 of the housing part 16 a recess 58 is provided These recesses 58 and 62 have approximately the same dimensions as the recess on the plan side 26 in the motor flange 14.
  • the recesses in the plan side 26 and the recess 62 form in composite Arrange together a cavity.
  • the cavity serves to receive the abrasive disc assembly 18th
  • the housing 16 and the motor flange 14 further have a longitudinal slot 66 in the radial direction, which extends over the entire thickness of the assembly.
  • the longitudinal slot 66 can be seen in FIG.
  • the slots 66 in motor flange 14 and Housing 16 lie one above the other.
  • the slot 66 thus formed is wide enough that the electrodes can be inserted there. With the grinding wheel assembly 18 rotating, the electrode at the edge 42 of one of the grinding wheels can be shortened by cutting off the spent electrode end or the newly ground electrode side.
  • the housing 16 and the motor flange 14 have openings 76 and 78 in the form of holes.
  • the bores each extend from the circumference on the shell side of the housing 16 or motor flange 14 to the associated plan sides in the direction of the grinding wheel closest to the housing or motor flange.
  • the bore thus has, for example, a diameter of 5.7 mm and a grinding angle of 22.5, 30 and 80 degrees.
  • the grinding angle is indicated by an engraving 82 above the bore.
  • the guide insert has an outer diameter which is adapted to the diameter of the bore, that it is at least partially insertable into the bore.
  • the guide inserts have different inner diameters. These are selected so that the electrodes to be machined can be inserted straight into the guide insert and guided well there.
  • a bevel different angles are possible with a bevel.
  • electrodes with different diameters can be used according to the number of available guide inserts.
  • the electrode is guided so well through the hole that reproducible results are obtained without effort or risk.
  • More grinding angles, more electrode diameters or the use of a grinding surface with different grain sizes are taken into account by the motor flange 14 has just such holes 78 and two grinding wheels are used.
  • an electrode can be coarsely pre-ground by, for example it is passed through a bore in the housing 16.
  • a rough grain is provided for the grinding wheel 20, the abrasion surface facing upward in the illustration.
  • a hole in the motor flange 14 is used.
  • Both the holes 76 in the housing part 16, as well as the holes 78 in the motor flange were made with the same machine with identical settings. The holes are therefore identical with minor deviations.
  • the abrasion surface is always in the same plane in the present arrangement. In this way, a particularly low error in the grinding angle is achieved.
  • the holes 76 are made so that the specified Anschleifwinkel is achieved when the abrasion surface is in the plane 60 and the holes 78, when the abrasion surface is in the disc thickness lying below the plane 26 level.
  • the housing 16 further has a bore which extends perpendicularly from the top to the bottom of the housing 16. These holes can also be used with guide inserts of different diameters.
  • the hole allows vertical grinding of the electrode tips.
  • the entire assembly is screwed onto a hand-held device.
  • the grinding wheel assembly sits directly in front of the ball bearing of the motor shaft 30. This prevents rolling at high speeds.
  • a baffle plate 84 is provided.
  • the baffle plate 84 is slipped between the motor-side grinding wheel 22 and the motor flange with a sleeve on the upper end 28 of the motor shaft 30 and rotated with.
  • the motor-side, lower surface of the baffle plate 84 is in the region of the bottom of the recess in the plan side 26.
  • Around the sleeve 86 around a felt ring 88 is arranged, which does not rotate.
  • the felt ring 88 avoids further penetration of dust, abraded material and abrasive into the engine and bearing.
  • the pin 34 extends through a bore in the baffle plate 84. In this way, not only the grinding wheel assembly 18, but also the baffle 84 is driven by the shaft 30.
  • the present arrangement has been explained of a concrete embodiment with a grinding wheel. It is understood that the arrangement can be varied. For example, it is possible to use two grinding wheels or another housing part, similar to the housing part 16, set up and provide in the intermediate cavity more grinding wheels. Also, different configurations of the holes for guiding the electrodes are conceivable.
  • FIG. 4 shows two different embodiments of a guide insert.
  • a guide insert 90 shown in FIG. 4 has an upper part 92 with a smaller outer diameter and a lower part 94 with a larger outer diameter. In between is a transition region 96.
  • the inner diameter also has an area with a larger and a smaller inner diameter. The areas do not have to correspond to areas 92 and 94.
  • the guide insert is inserted with the portion 92 in the hole with the desired Anschleifwinkel.
  • the electrode is inserted into the guide insert 90 from the end 94 and can then be conveniently machined.
  • Each guide insert 90 is provided with an engraving 98 indicating the inner diameter or the diameter of the electrode.
  • FIG. 5 shows another guide insert 100.
  • the guide insert 100 also has a region 102 with a smaller outside diameter and a region 104 with a larger outside diameter. Again, a transition region 106 is provided.
  • the guide insert may receive and clamp to the region 104 a tubular electrode support.
  • the matching electrode is accommodated. If the electrode is to be ground, the holder is placed on a bore 76 or 78 and pushed the electrode through the area 102 to the grinding wheel.
  • the housing part 16 relative to the motor flange 14 about an eccentric longitudinal axis 110 is adjustable and in this position lockable. This is shown in FIG.
  • the holes 76 and 78 then open in another area on the grinding wheel, further outward or inward. Accordingly, previously unused areas of the grinding wheel are used. It is understood that other arrangements, such as without guide sleeves, or with multiple grinding wheels can use such a rotation about an off-center axis for better utilization of the abrasion surface.
  • FIG. 7 shows a guide insert 1 for short electrodes.
  • a short electrode is designated 5 in the illustration.
  • the short electrode 5 is held with a threaded head 3 in a collet 4.
  • the collet 4 has an internal thread.
  • a threaded pin 2 is screwed from behind.
  • the threaded pin 2 is screwed in to a desired, adjustable depth.
  • the guide insert 1 has a shoulder which serves as a stop for the head of the threaded pin 2.
  • the short electrode with the collet 4 is simply inserted from the rear into the guide insert 1 up to the stop. The entire assembly is then slid into the hole at the desired grinding angle, as shown in FIG. Due to the elongated guide insert 1, a short electrode also extends to the grinding wheel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

L'invention concerne un dispositif (10) de traitement d'électrodes de soudage comportant un disque de meulage (20, 22) entraîné par un moteur d'entraînement au moyen d'un arbre (30), le disque de meulage tournant dans l'espace creux d'un boîtier (14, 16). Le boîtier (14, 16) comporte des passages traversants (76, 78) prévus pour guider des électrodes de soudage à traiter dans une position définie par rapport au disque de meulage (20, 22). Le dispositif de soudage est caractérisé en ce que pour chaque angle de meulage souhaité, un seul passage traversant est prévu; tous les passages traversants présentent un diamètre intérieur unitaire; et pour chaque diamètre d'électrode des électrodes de soudage à traiter, il est prévu un insert de guidage pouvant être introduit au moins partiellement par ajustage serré dans le passage traversant et dont le diamètre intérieur est adapté au diamètre d'électrode de telle manière que l'électrode de soudage peut être guidée dans l'insert de guidage.
PCT/EP2010/065620 2009-12-10 2010-10-18 Dispositif de meulage d'électrodes WO2011069727A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10774161.3A EP2509747B1 (fr) 2009-12-10 2010-10-18 Dispositif de meulage d'électrodes
PL10774161T PL2509747T3 (pl) 2009-12-10 2010-10-18 Przyrząd ścierający do obróbki elektrod

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009057490.5 2009-12-10
DE102009057490A DE102009057490A1 (de) 2009-12-10 2009-12-10 Elektrodenschleifvorrichtung

Publications (1)

Publication Number Publication Date
WO2011069727A1 true WO2011069727A1 (fr) 2011-06-16

Family

ID=43598395

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/065620 WO2011069727A1 (fr) 2009-12-10 2010-10-18 Dispositif de meulage d'électrodes

Country Status (4)

Country Link
EP (1) EP2509747B1 (fr)
DE (1) DE102009057490A1 (fr)
PL (1) PL2509747T3 (fr)
WO (1) WO2011069727A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9022838B2 (en) 2011-07-28 2015-05-05 Rolf Tamm Assembly for grinding electrodes

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013103868B3 (de) * 2013-04-17 2014-11-20 Rolf Tamm Vorrichtung zum Fixieren von Schweißelektroden beim Zuschneiden und Schneidvorrichtung für Schweißelektroden
DE102013104875B3 (de) * 2013-05-13 2014-10-30 Rolf Tamm Elektrodenschleifvorrichtung
CN112207686A (zh) * 2020-08-28 2021-01-12 南京阿兹曼电子科技有限公司 一种电子零部件生产用打磨机及使用方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07276211A (ja) 1994-04-13 1995-10-24 Akihisa Murata 電極棒研磨機
DE10010520A1 (de) 2000-03-07 2001-09-20 Rolf Tamm Vorrichtung zur Bearbeitung von Schweißelektroden mit einer Schleifscheibe
US6672942B1 (en) 1999-07-07 2004-01-06 Fujikin Incorporated Grinding machine for welding electrodes
DE10243210B3 (de) 2002-09-17 2004-05-27 Rolf Tamm Doppelschleifscheibe
DE102006052904A1 (de) 2006-11-08 2008-05-15 Rolf Tamm Anordnung zum Schleifen von Elektroden

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07276211A (ja) 1994-04-13 1995-10-24 Akihisa Murata 電極棒研磨機
US6672942B1 (en) 1999-07-07 2004-01-06 Fujikin Incorporated Grinding machine for welding electrodes
DE10010520A1 (de) 2000-03-07 2001-09-20 Rolf Tamm Vorrichtung zur Bearbeitung von Schweißelektroden mit einer Schleifscheibe
DE10243210B3 (de) 2002-09-17 2004-05-27 Rolf Tamm Doppelschleifscheibe
DE102006052904A1 (de) 2006-11-08 2008-05-15 Rolf Tamm Anordnung zum Schleifen von Elektroden

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9022838B2 (en) 2011-07-28 2015-05-05 Rolf Tamm Assembly for grinding electrodes

Also Published As

Publication number Publication date
PL2509747T3 (pl) 2013-11-29
EP2509747B1 (fr) 2013-06-26
DE102009057490A1 (de) 2011-06-16
EP2509747A1 (fr) 2012-10-17

Similar Documents

Publication Publication Date Title
EP2509745B1 (fr) Module pour l'équipement ultérieur d'un dispositif de meulage d'électrodes et dispositif de meulage d'électrodes
EP2551054B1 (fr) Agencement destiné au ponçage d'électrodes
EP1321210B1 (fr) Outil de chanfreinage
EP1896209A1 (fr) Outil d'usinage de siege de soupape et de guide de soupape
EP2509749B1 (fr) Dispositif de meulage d'electrodes
DE102006052904B4 (de) Anordnung zum Schleifen von Elektroden
DE10243210B3 (de) Doppelschleifscheibe
EP2509747B1 (fr) Dispositif de meulage d'électrodes
EP0523404B1 (fr) Outil à deux arêtes de coupe pour fraiser et alaiser
DE202010018091U1 (de) Vorrichtung zur Bearbeitung einer Zylinderbohrung mit geometrischbestimmter Schneide
DE10010520C2 (de) Vorrichtung zur Bearbeitung von Schweißelektroden mit einer Schleifscheibe
EP2509746B1 (fr) Dispositif pour meuler des électrodes et meule
EP1910004A1 (fr) Fraise a lames rapportees
DE102013104875B3 (de) Elektrodenschleifvorrichtung
DE8422976U1 (de) Werkzeughalter mit Radialverstellvorrichtung für ein Werkzeug, insbesondere ein rotierendes Werkzeug
EP1239995A1 (fr) Procede et dispositif pour meuler des outils rainures
DE3344467A1 (de) Werkzeug zur spanabhebenden bearbeitung von materialien, insbesondere metallen
DE102006052905B4 (de) Anordnung zum Schleifen von Elektroden
EP0123918B1 (fr) Mandrin de fraisage et de serrage
WO2009115222A1 (fr) Outil
DE10210069B4 (de) Vorrichtung zur Bearbeitung von Schweißelektroden mit einer Schleifscheibe
EP3043938A1 (fr) Outil de coupe
DE3446762A1 (de) Handschleifgeraet fuer rundstaebe
WO2023213567A1 (fr) Dispositif de dénudage d'un fil isolé par laque
EP1479468A2 (fr) Fraise et procédé de fabrication

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10774161

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2010774161

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE