CA1312639C - Welding gun connector - Google Patents
Welding gun connectorInfo
- Publication number
- CA1312639C CA1312639C CA000590464A CA590464A CA1312639C CA 1312639 C CA1312639 C CA 1312639C CA 000590464 A CA000590464 A CA 000590464A CA 590464 A CA590464 A CA 590464A CA 1312639 C CA1312639 C CA 1312639C
- Authority
- CA
- Canada
- Prior art keywords
- welding gun
- bellows
- connection means
- conduit
- gun head
- 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 - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
- F16L27/107—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve
- F16L27/11—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations
- F16L27/111—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations the bellows being reinforced
-
- 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
- B23K9/32—Accessories
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Resistance Welding (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A bellows-like connector is used to join the downstream end of a smooth-surfaced welding gun conduit and the upstream end of a welding gun head to permit the welding gun head to be moved universally relative to the conduit. Resilient rings are located internally of the bellows to resist radially-inward deformation.
A bellows-like connector is used to join the downstream end of a smooth-surfaced welding gun conduit and the upstream end of a welding gun head to permit the welding gun head to be moved universally relative to the conduit. Resilient rings are located internally of the bellows to resist radially-inward deformation.
Description
~3~7.~
WELDING GIJN CONNECTOR
The present invention relates to welding guns.
Welding guns for application of a weld to a desired site generally are provided at the remote end of a conduit in which is located a continuous weld wire extending ~rom a wire source and a power cable extending from a power source. Often such welding guns are of the vacuum type which permit undesirable fumes to be removed from the welding site through the conduit.
Traditionally, this conduit has been of corrugated construction along the whole length thereof, but such structure provides no support for the weld wire or power cable and can wear through to expose the electrical power cable. In my U.S. Patent No. ~,~96,823, there is described a novsl multipassage flexible smooth-sur~aced conduit which overcomes the problems o* the prior art.
In some instances, however, the conduit of my U.S.
Patent No. 4,496,823 is not sufficiently flexible to permit the ideal manoeuvrability of the weldiny gun head to make welds, particularly in hard-to-get-at locations.
In the present invention, there is provided a novel welding gun arrangement in which a smooth-surfaced ~lexible conduit is joined to a welding gun head through a bellows-like flexible connector to p2rmit the welding gun to be turned almost universally with respPct to the conduit. Such bellows like connector is provided with resilient rinys located integrally of the device, so that radially-inward deformation under the influence of inwardly-directed pressure is resisted.
In accordance with one aspect of the present invention, there is provided a welding gun, comprising a welding gun head ~or applying a weld to a site; a conduit ~or an electrical power cable to the welding gun head; flexible bellows connection means connecting the welding gun head to the conduit to permit the welding gun head to be moved universally relative to '.~
~ 3 ~
~he conduit, and a plurality of resilient rings disposed internally and at longitudinally-spac~d locations along the length of the bellows connection means to resist deformation of the bellows connection 5 means upon the external application of radially-inward pressure thereto.
In another aspect of the invention, there i~
provided a flexible bellows connection means, comprising a generally cylindrical shape, a plurality of individual bellows members integrally joined one to another to be resiliently flexible and elongate smooth-surfaced tubular portions extending from each end thereof, and having a plurality of resilient rings disposed internally and at longitudinally-spaced locations along the length of the bellows connection means to resist inward deformation of the bellows connection means upon the external application of radially-inward pressure thereto.
The invention is described further, by way of illustration, with reference to the accompanying drawings, in which:
Figure 1 is a perspective viaw of a welding gun arrangement in accordance with one embodiment of the invention;
Figure 2 is a perspective vi~w of the connector used in the welding gun arrangement of Figure 1;
Figure 3 i5 a sectional view of the connector of Figure 2; and Figure 4 is a perspective view of the connector illustrating flexure thereof.
Referring to the drawings, there is shown therein a welding gun arrangement 10 in accordance with one embod-iment of the invention. The welding gun arrangement 10 comprises a conduit 12, a welding gun head 14 and a bellows connector 16 connecting the downstream end of ~3~ 2~3~
the conduit 12 to the upstream end of the welding head 14.
The conduit 12 is a smooth-surfaced tube for conveying power and welding rod from a remote location to the welding gun head 14. The conduit 12 preferably takes the form described in my U.S. Patent No.
4,496,812, for a fume-extruding welding gun head 14.
The welding gun head 14 may be any convenient welding gun head to effect welding at a site. Prefer-ably, the welding gun head 14 is of the fume-extracting type and preferably takes the form described in my U.S.
Patent No. 4,727,238.
The bellows connector 16 comprises a plurality of individual bellows elements 18 which are integrally joined to each other so as to be resiliently flexible and permit universal movement of the welding gun head 14 with respect to the conduit 12. Ey providing for uni-versal movement of the connector 16 by m~ans of the bellows 18, an extreme flexibility of positioning of the welding gun head 14 relative to the conduit 12 results, providing to the welder, not only the advan-tages of the smooth-surfaced conduit 12 but also the advantage of flexibility of location of welding gun head 14 at the welding site~
To prevent inadvertent crushing and collapse of the bellows 16 in use, such as may occur when the welding gun is gripped at the ~onnector, a series of resilient rings 19 is provided spacad apart substantially equally along the length of the connector 16. The rings are located in the apices of individual ones of the bellows elements 18.
The connector 16 is joined to the conduit 1~ and the welding gun head 14 in any convenient manner. As illustrated, the downstream end of the conduit 12 and the upstream end of the welding gun head 14 extend snugly respectively into tubular extensions 20 of the :~3:~2~3~
3a bellows connector 1~ and clamps 22 surround and are tightened onto the extensions 20 to grip the conduit 12 and welding gun head 14 respectively.
The present invention provides a novel welding gun arrangement, which has clear industrial applicability, permits, through the use of a bellows connector, more flexibility of location of a welding gun head when a smooth-surfaced relatively inflexible conduit is employed while resistance to inadvertent crushing is achieved using resilient rings. Modifications are possible within the scope of this invention.
.,~
WELDING GIJN CONNECTOR
The present invention relates to welding guns.
Welding guns for application of a weld to a desired site generally are provided at the remote end of a conduit in which is located a continuous weld wire extending ~rom a wire source and a power cable extending from a power source. Often such welding guns are of the vacuum type which permit undesirable fumes to be removed from the welding site through the conduit.
Traditionally, this conduit has been of corrugated construction along the whole length thereof, but such structure provides no support for the weld wire or power cable and can wear through to expose the electrical power cable. In my U.S. Patent No. ~,~96,823, there is described a novsl multipassage flexible smooth-sur~aced conduit which overcomes the problems o* the prior art.
In some instances, however, the conduit of my U.S.
Patent No. 4,496,823 is not sufficiently flexible to permit the ideal manoeuvrability of the weldiny gun head to make welds, particularly in hard-to-get-at locations.
In the present invention, there is provided a novel welding gun arrangement in which a smooth-surfaced ~lexible conduit is joined to a welding gun head through a bellows-like flexible connector to p2rmit the welding gun to be turned almost universally with respPct to the conduit. Such bellows like connector is provided with resilient rinys located integrally of the device, so that radially-inward deformation under the influence of inwardly-directed pressure is resisted.
In accordance with one aspect of the present invention, there is provided a welding gun, comprising a welding gun head ~or applying a weld to a site; a conduit ~or an electrical power cable to the welding gun head; flexible bellows connection means connecting the welding gun head to the conduit to permit the welding gun head to be moved universally relative to '.~
~ 3 ~
~he conduit, and a plurality of resilient rings disposed internally and at longitudinally-spac~d locations along the length of the bellows connection means to resist deformation of the bellows connection 5 means upon the external application of radially-inward pressure thereto.
In another aspect of the invention, there i~
provided a flexible bellows connection means, comprising a generally cylindrical shape, a plurality of individual bellows members integrally joined one to another to be resiliently flexible and elongate smooth-surfaced tubular portions extending from each end thereof, and having a plurality of resilient rings disposed internally and at longitudinally-spaced locations along the length of the bellows connection means to resist inward deformation of the bellows connection means upon the external application of radially-inward pressure thereto.
The invention is described further, by way of illustration, with reference to the accompanying drawings, in which:
Figure 1 is a perspective viaw of a welding gun arrangement in accordance with one embodiment of the invention;
Figure 2 is a perspective vi~w of the connector used in the welding gun arrangement of Figure 1;
Figure 3 i5 a sectional view of the connector of Figure 2; and Figure 4 is a perspective view of the connector illustrating flexure thereof.
Referring to the drawings, there is shown therein a welding gun arrangement 10 in accordance with one embod-iment of the invention. The welding gun arrangement 10 comprises a conduit 12, a welding gun head 14 and a bellows connector 16 connecting the downstream end of ~3~ 2~3~
the conduit 12 to the upstream end of the welding head 14.
The conduit 12 is a smooth-surfaced tube for conveying power and welding rod from a remote location to the welding gun head 14. The conduit 12 preferably takes the form described in my U.S. Patent No.
4,496,812, for a fume-extruding welding gun head 14.
The welding gun head 14 may be any convenient welding gun head to effect welding at a site. Prefer-ably, the welding gun head 14 is of the fume-extracting type and preferably takes the form described in my U.S.
Patent No. 4,727,238.
The bellows connector 16 comprises a plurality of individual bellows elements 18 which are integrally joined to each other so as to be resiliently flexible and permit universal movement of the welding gun head 14 with respect to the conduit 12. Ey providing for uni-versal movement of the connector 16 by m~ans of the bellows 18, an extreme flexibility of positioning of the welding gun head 14 relative to the conduit 12 results, providing to the welder, not only the advan-tages of the smooth-surfaced conduit 12 but also the advantage of flexibility of location of welding gun head 14 at the welding site~
To prevent inadvertent crushing and collapse of the bellows 16 in use, such as may occur when the welding gun is gripped at the ~onnector, a series of resilient rings 19 is provided spacad apart substantially equally along the length of the connector 16. The rings are located in the apices of individual ones of the bellows elements 18.
The connector 16 is joined to the conduit 1~ and the welding gun head 14 in any convenient manner. As illustrated, the downstream end of the conduit 12 and the upstream end of the welding gun head 14 extend snugly respectively into tubular extensions 20 of the :~3:~2~3~
3a bellows connector 1~ and clamps 22 surround and are tightened onto the extensions 20 to grip the conduit 12 and welding gun head 14 respectively.
The present invention provides a novel welding gun arrangement, which has clear industrial applicability, permits, through the use of a bellows connector, more flexibility of location of a welding gun head when a smooth-surfaced relatively inflexible conduit is employed while resistance to inadvertent crushing is achieved using resilient rings. Modifications are possible within the scope of this invention.
.,~
Claims (8)
1. A welding gun, comprising:
a welding gun head for applying a weld to a site, a conduit for an electrical power cable to said welding gun head, flexible bellows connection means connecting said welding gun head to said conduit to permit said welding gun head to be moved universally relative to said conduit, and a plurality of resilient rings disposed internally and at longitudinally-spaced locations along the length of said bellows connection means to resist deformation of said bellows connection means upon the external application of radially-inward pressure thereto.
a welding gun head for applying a weld to a site, a conduit for an electrical power cable to said welding gun head, flexible bellows connection means connecting said welding gun head to said conduit to permit said welding gun head to be moved universally relative to said conduit, and a plurality of resilient rings disposed internally and at longitudinally-spaced locations along the length of said bellows connection means to resist deformation of said bellows connection means upon the external application of radially-inward pressure thereto.
2. The welding gun of claim 1 wherein said flexible bellows connection means is of generally cylindrical shape and comprising a plurality of individual bellows members integrally joined one to another to be resiliently flexible.
3. The welding gun of claim 2 wherein said resilient rings are located at the radially-inward apex of individual ones of said individual bellows members.
4. The welding gun of claim 3 wherein there is a lesser plurality of said resilient rings than of said individual bellows means and said resilient rings are substantially equally spaced apart along the length of said bellows connection and located in said apices.
5. The welding gun of claim 4 wherein said flexible bellows connection means includes elongate smooth surfaced tubular portions at each longitudinal end thereof to effect connection to said welding gun head and said conduit.
6. The welding gun of claim 5 wherein the downstream end of said conduit extends snugly into one of said tubular portions and the upstream end of said welding gun head extends snugly into the other of said tubular portions and clamps surround and are tightened to said tubular portion to effect a secure connection.
7. A flexible bellows connection means, comprising a generally cylindrical shape, a plurality of individual bellows members integrally joined one to another to be resiliently flexible and elongate smooth-surfaced tubular portions extending from each end thereof, and having a plurality of resilient rings disposed integrally and at longitudinally-spaced locations along the length of said bellows connection means to resist inward deformation of said bellows connection means upon the external application of radially-inward pressure thereto.
8. The bellows connection means of claim 6 wherein there is a lesser plurality of said resilient rings than of said individual bellows means and said resilient rings are substantially equally spaced apart along the length of said bellows connection means and located in the apices of individual ones of said individual bellows members.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000590464A CA1312639C (en) | 1989-02-08 | 1989-02-08 | Welding gun connector |
| PCT/CA1990/000038 WO1990009540A1 (en) | 1989-02-08 | 1990-02-06 | Welding gun connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000590464A CA1312639C (en) | 1989-02-08 | 1989-02-08 | Welding gun connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1312639C true CA1312639C (en) | 1993-01-12 |
Family
ID=4139591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000590464A Expired - Fee Related CA1312639C (en) | 1989-02-08 | 1989-02-08 | Welding gun connector |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA1312639C (en) |
| WO (1) | WO1990009540A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1209797A (en) * | 1958-09-15 | 1960-03-03 | Vve G Boinet Et Ses Fils | Flexible sleeve, in particular for connection of a ventilation nozzle |
| SE378997B (en) * | 1973-06-13 | 1975-09-22 | Anderssons Verme Ab H | |
| DE8426279U1 (en) * | 1984-09-06 | 1984-12-13 | Latzel, Peter H., Dipl.-Kaufm., 5000 Köln | Flexible connection line |
| WO1986004660A1 (en) * | 1985-02-04 | 1986-08-14 | Witzenmann Gmbh Metallschlauch-Fabrik Pforzheim | Flexible hose with ring-shaped parallel waves with axial support |
-
1989
- 1989-02-08 CA CA000590464A patent/CA1312639C/en not_active Expired - Fee Related
-
1990
- 1990-02-06 WO PCT/CA1990/000038 patent/WO1990009540A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO1990009540A1 (en) | 1990-08-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |