EP1257380A2 - Wire feeder and connector unit - Google Patents
Wire feeder and connector unitInfo
- Publication number
- EP1257380A2 EP1257380A2 EP00973116A EP00973116A EP1257380A2 EP 1257380 A2 EP1257380 A2 EP 1257380A2 EP 00973116 A EP00973116 A EP 00973116A EP 00973116 A EP00973116 A EP 00973116A EP 1257380 A2 EP1257380 A2 EP 1257380A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- wire
- connector
- wire feeder
- house
- nest
- 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.)
- Withdrawn
Links
- 238000003466 welding Methods 0.000 claims abstract description 44
- 238000010276 construction Methods 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/133—Means for feeding electrodes, e.g. drums, rolls, motors
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/133—Means for feeding electrodes, e.g. drums, rolls, motors
- B23K9/1336—Driving means
Definitions
- the invention relates to a wire feeder and connector unit, which, due to its structure, is suitable for pushing welding wire into the cable of a welding torch in a way that it is more prevented from inflection, so that it can be used especially as a unit of a welding apparatus, as a combined unit for receiving the connector on the end of the connecting cable of the welding torch and for feeding the welding wire at the same time.
- the role of the wire-feeder of a welding apparatus is to pull the welding wire from the spool and to push it into the connector connecting the power supply of the apparatus with the cable of the welding torch, ensuring that the welding wire is pushed to the welding torch at a constant speed, guided in the cable of the welding torch.
- the cable connecting the welding torch with the welding apparatus is constructed in a way that the power-current wire for transporting the welding current and the low-current wires for transporting the control signals for the welding torch run near each other in a common tubular housing, there is a spiral guiding the welding wire in the core of the cable, and there is a duct or a pipe between the housing and the core of the cable so as to transport the protecting gas, e.g. at the construction presented in patent specification no. USP 4,529,861.
- connectors mounted on the end of these cables close to the apparatus which connector is constructed to match to the cable, and which connector can be coupled to the other connector mounted in most cases on the head plate of the apparatus via screwing it on, and it is constructed in a way that when the connectors are connected and fixed to each other, the required connection is established between the current-carrying and gas- carrying elements of the connectors at the same time, and the wire guide nose-piece of the connector on the cable also fits into the corresponding nest formed in the connector mounted on the apparatus, ensuring that the welding wire is lead from the apparatus into the cable of the welding torch without distorting or inflecting.
- the connector mounted on the apparatus is supplied with suitable terminals and a gas supply chunk at its so called inner side facing the inner space of the apparatus, the wire carrying the welding current and the wires carrying the control signal can be connected to these terminals, and the gas conduit can be connected to this gas supply chunk, and further, the welding wire can be introduced in the connector through the intermediate wire guide piece leading into the nest of the welding wire and the liner placed in it.
- the welding wire is moved in the connector and the cable by the wire feeder, which is usually situated fixed inside the apparatus.
- the usual construction of the known wire feeders is as follows: they have a carrying body which is either a cast product or made of metal sheet, there are one or two pairs of rolls feeding the welding wire, consisting of a feed roll and a pinch roll located on one side of the carrying body, the shaft of the feed roll is practically orthogonal to the mounting plate of the carrying body, further, there are one or more pressure arm(s) fixed to the carrying body by a turning joint, the pinch roll(s) are fixed to this pressure arm by a free-running bearing preventing axial movement of the pinch roll(s), further, there is a fixing arm locking the pressure arm(s) to the carrying body providing pressing force by spring force adjustable by pre-stressing, and there is a catch arrangement to fix the closed position of the pressure arm(s) to the carrying body.
- the fixing arm elastically presses the pinch roll against the feed roll opposite to it in a way that the wire to be fed is nipped between the two rolls, while in the open position the pinch roll is detached from the feed roll.
- first wire guide piece In one side wall of the carrying body there is an opening for the first wire guide piece, and in the other side wall opposite to it there is an opening for the second wire guide piece, defining the path of the wire running between the feed roll and the pinch roll in the position of the pressure arm fixed to the carrying body.
- the first and second wire guide pieces suitable for leading the wire in and out are usually constructed using a spiral spring.
- the driving unit is mounted on the other mounting plate of the carrying body, the output shaft of the driving unit is in direct or indirect forced coupling delivering torque through the feed roll or rolls.
- the carrying body has a base surface, and the wire feeder can be mounted on the supporting plate, console, support etc. inside the apparatus by the holes in the base surface using screw joint, near the connector as far as possible.
- this kind of wire feeders e.g. USP 5,155,332; 4,404,450; 4,898,317; 5,053,598 and 5,137,223.
- the welding wire For using the welding apparatus, the welding wire must be lead through the wire feeder, and it must be introduced in the connector mounted on the apparatus, which usually requires opening the apparatus. When using the apparatus, when the welding wire gets stuck in the apparatus, when the wire is changed or replaced, this procedure must be repeated again and again.
- One condition of the proper movement of the welding wire is that the wire feeder and the connector mounted on the apparatus providing guide for the welding wire should be situated close to each other so that the wire should not be inflected or distorted in the way between the wire feeder and the connector, as it would result in failure in the operation of the apparatus, and the apparatus should be opened and the wire should be inserted again so as to eliminate the failure.
- Our aim with the invention is to solve the above described problem, that is, to establish a path for the welding wire between the wire feeder and the connector mounted on the apparatus, providing guide for the wire essentially preventing the wire from inflection or distortion, in a way that the wire feeder and the connector should be easy to access, and it should be easy to make the reparations and adjustments required in the course of normal operation of the apparatus.
- the fundamental idea of the invention is that the solution for the problem is a construction where the wire feeder and the connector are mounted on the same unit, in a way that they are close to each other.
- the solution for the problem is a construction having a carrying body, a feed roll driven directly or indirectly and a pinch roll mounted on a pressure arm the position of which can be fixed by a fixing arm, which are acting as the wire feeder further, having a house acting as the connector for transporting the welding current, the control signals, the protecting gas and forwarding the welding wire, which house has terminals and guide parts and/or elements and is fashioned in a way that it can be mounted, and which construction is designed in a way that it defines a path for the welding wire, and the essence of which is that the unit has a wire feeder part and a connector part, the carrying body of the wire feeder part and the house of the connector part is designed as a unit in one piece, suitably made of plastic, and the inlet opening of the wire feeder part is situated opposite to the wire lead-in opening on the inner side of the connector part joining to the bottom of the nest for the wire guide, in a given case there is an inlet piece in the inlet opening, the path of the wire defined by these two opening
- the projection on the inner end of the house of the connector part and the projection on the carrying body part opposite to it are mirror- symmetric to the path of the wire.
- assembling holes on the carrying body part are positioned to be mirrorsymmetric to the path of the wire.
- the wire feeder and connector unit there is a wire guide liner in the wire lead-in opening on the inner side of the wire guide nest in the house of the connector part, and there is a flexible inlet piece, preferably made from a spiral spring, in the inlet opening of the wire feeder part.
- the connector part has a nest for the wire-guide and a nest for the gas supply conduit on the front surface of its cylindrical connector body, it has electric contacts, usually two electric contacts situated flushed on the front surface and lead out at the rear surface of the connector body, it has a liner connected to the nest for the wire-guide from the back and a lead-in leading into the nest for the gas supply conduit from the back, further it has a threaded surface made of electrically conductive material and a ring shaped contact surface beside it, and it has a house made of plastic surrounding the connector body from the side shaped to be suitable for mounting it, and further, the connector body and the house is made of plastic, designed as a unit in one piece connected by a rear wall, and further, it has an insert made of electrically conductive material that can be fitted in the nest formed by the side surface of the connector body part and the surface of the house part opposite to this side surface, and the insert is secured rotationally in the nest by form-fitting due
- the thicker side-piece of the insert is fitted into the opening on the sidewall of the house part, preferably projecting out of it.
- the insert is of uniform thickness, and it has a threaded hole in its side piece suitable for connecting a cable socket to it, and in certain cases there is a cable connector fixed in it by screw joint.
- the construction for mounting is a rim formed by the front surface of the house part and bore-holes in the rim.
- Figure 1 is a perspective view of an embodiment of the wire feeder and connector unit according to the invention with one type of connector part, in closed position, viewed from one direction,
- Figure 2 is a perspective view of the wire feeder and connector unit shown in figure 1 viewed from the other direction,
- Figure 3 is a perspective view of the wire feeder and connector unit shown in figure 1 from one direction, in open position, with the electrically conductive insert removed from its nest and without the driving unit,
- Figure 4 is a second possible embodiment of the electrically conductive insert
- Figure 5 is a third possible embodiment of the electrically conductive insert.
- the connector part of the unit according to the invention can be different from the construction presented here.
- the major advantage of the wire feeder and connector unit according to the invention is that it is a multi-function unit that can be assembled and disassembled in one piece.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
- Arc Welding In General (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU9903731A HUP9903731A2 (en) | 1999-10-20 | 1999-10-20 | Wire pusher-joining unit |
HU9903731 | 1999-10-20 | ||
HU0004117A HU0004117D0 (en) | 2000-10-20 | 2000-10-20 | Wire-feed and joining unit |
HU0004117 | 2000-10-20 | ||
PCT/HU2000/000110 WO2001028728A2 (en) | 1999-10-20 | 2000-10-20 | Wire feeder and connector unit |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1257380A2 true EP1257380A2 (en) | 2002-11-20 |
Family
ID=89999783
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00973116A Withdrawn EP1257380A2 (en) | 1999-10-20 | 2000-10-20 | Wire feeder and connector unit |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1257380A2 (en) |
JP (1) | JP2003522023A (en) |
KR (1) | KR20020072275A (en) |
CN (1) | CN1216712C (en) |
AU (1) | AU1166401A (en) |
CZ (1) | CZ20021722A3 (en) |
PL (1) | PL353920A1 (en) |
WO (1) | WO2001028728A2 (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8723082B2 (en) | 2004-07-09 | 2014-05-13 | Fronius International Gmbh | Device for transporting a welding wire |
AT500654B1 (en) * | 2004-07-09 | 2007-01-15 | Fronius Int Gmbh | DEVICE FOR PROMOTING A WELDING WIRE |
US7767934B2 (en) * | 2005-06-09 | 2010-08-03 | Illinois Took Works Inc. | Torch feed roll adjustment lever |
JP5001917B2 (en) * | 2008-03-31 | 2012-08-15 | 株式会社神戸製鋼所 | Wire feeder |
US8569653B2 (en) * | 2009-11-02 | 2013-10-29 | Lincoln Global, Inc. | Drive roll assembly for wire feeder |
CN101890436B (en) * | 2010-08-19 | 2012-05-23 | 中冶赛迪工程技术股份有限公司 | Outlet valve device of strip-steel pinch roll and control method thereof |
US8635896B2 (en) * | 2011-01-21 | 2014-01-28 | Alcotec Wire Corporation | Assembly for assisting the removal from storage and transfer of wire |
US10081072B2 (en) | 2011-03-29 | 2018-09-25 | Illinois Tool Works Inc. | Welding torch with wire feed speed control |
CN102205166B (en) * | 2011-04-24 | 2012-12-05 | 冯振花 | Angiocardiography guide wire propeller |
US9463524B2 (en) | 2012-06-14 | 2016-10-11 | Illinois Tool Works Inc. | System and method for adjusting feed roll position in a welding torch |
US10239148B2 (en) | 2012-06-14 | 2019-03-26 | Illinois Tool Works Inc. | Motor assembly for a push-pull welding torch |
US9931706B2 (en) | 2013-03-12 | 2018-04-03 | Illinois Tool Works Inc. | Adjustable drive shaft assembly |
US9616516B2 (en) | 2013-07-11 | 2017-04-11 | Illinois Tool Works Inc. | Indexing drive roll carrier system and method |
US10737347B2 (en) | 2013-09-19 | 2020-08-11 | Hypertherm, Inc. | Thread connection for a torch system |
US10576575B2 (en) | 2013-09-19 | 2020-03-03 | Hypertherm, Inc. | Thread connection for a torch system |
US10730132B2 (en) | 2015-12-28 | 2020-08-04 | Illinois Tool Works Inc. | Reciprocating wire feed welding system and method |
US10675698B2 (en) | 2015-12-31 | 2020-06-09 | Illinois Tool Works Inc. | Wire delivery apparatus with a non-rotational actuator |
WO2018097823A1 (en) * | 2016-11-23 | 2018-05-31 | The Esab Group, Inc. | Wire feeder with automatically adjustable wire clamping force |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4791271A (en) * | 1987-04-06 | 1988-12-13 | Crc-Evans Pipeline International, Inc. | Capstan drive assembly for filler wire in electric arc welding |
US4954690A (en) * | 1989-04-03 | 1990-09-04 | Kensrue Milo M | Modular welding gun |
US5816466A (en) * | 1996-04-19 | 1998-10-06 | The Lincoln Electric Company | Wire feeding apparatus |
-
2000
- 2000-10-20 CN CN008173370A patent/CN1216712C/en not_active Expired - Fee Related
- 2000-10-20 JP JP2001531547A patent/JP2003522023A/en not_active Ceased
- 2000-10-20 KR KR1020027005065A patent/KR20020072275A/en not_active Application Discontinuation
- 2000-10-20 AU AU11664/01A patent/AU1166401A/en not_active Abandoned
- 2000-10-20 CZ CZ20021722A patent/CZ20021722A3/en unknown
- 2000-10-20 WO PCT/HU2000/000110 patent/WO2001028728A2/en not_active Application Discontinuation
- 2000-10-20 PL PL00353920A patent/PL353920A1/en unknown
- 2000-10-20 EP EP00973116A patent/EP1257380A2/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO0128728A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2001028728A3 (en) | 2001-06-14 |
AU1166401A (en) | 2001-04-30 |
CZ20021722A3 (en) | 2002-11-13 |
CN1411402A (en) | 2003-04-16 |
KR20020072275A (en) | 2002-09-14 |
WO2001028728A2 (en) | 2001-04-26 |
JP2003522023A (en) | 2003-07-22 |
CN1216712C (en) | 2005-08-31 |
PL353920A1 (en) | 2003-12-15 |
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Legal Events
Date | Code | Title | Description |
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17Q | First examination report despatched |
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