US3920950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding machine with a disassemblable column
Assignee: SIV DELTIX SpA
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Filing: 1974-04-30
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Granted: 1975-11-18
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Expires: 1994-04-30
Abstract
Abstract A resistance welding machine for automatically effecting several programmed welding operations, wherein a column, movably supported on a support, carries a unit of operative members which has an elongated shape and can be inserted from the bottom into the column; connection means are provided on the column and the insertable unit for automatically establishing electrical and fluidical connections as a consequence of the mechanical connection of the members.
Inventors
- 👤 Luigi Caprioglio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:06
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/30; B23K11/31; B23K11/318; B25; B25J; B25J17/00; B25J18/00; B25J18/02; B25J19/00; B25J19/0025; B25J19/0029; B25J9/00; B25J9/08
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
223 words
A welding machine comprising support means, movably supported on said support means, a column, said column having the form of a hollow shell, at a first end of said hollow shell a head, said head being rotatably mounted on said shell but not axially displaceable, and in said head first connection means, at the second end of said hollow shell a bearing, said bearing being rotatably mounted on said shell but not axially displaceable, and on said bearing first mechanical coupling means, a unit inserted into said hollow shell, at a first end of said unit second connection means that couple with said first connection means of said head, and at the second end of said unit a support plate for welding guns, said support plate having second mechanical coupling means that couple with saId first mechanical coupling means of said bearing, said first and second connection means comprising mechanical, electrical and fluidical connection members, and at least one welding gun connected to said support plate, whereby upon insertion of said unit into said shell and coupling of said first and second mechanical coupling means, said first and second connection means are mutually engaged thus automatically establishing all necessary mechanical, electrical and fluidical connections between said column and said unit, as a consequence of the simple mechanical coupling of said column and unit.
Claim 2
Dependent Claim
223 words
A welding machine comprising support means, movably supported on said support means, a column, said column having the form of a hollow shell, at a first end of said hollow shell a head, said head being rotatably mounted on said shell but not axially displaceable, and in said head first connection means, at the second end of said hollow shell a bearing, said bearing being rotatably mounted on said shell but not axially displaceable, and on said bearing first mechanical coupling means, a unit inserted into said hollow shell, at a first end of said unit second connection means that couple with said first connection means of said head, and at the second end of said unit a support plate for welding guns, said support plate having second mechanical coupling means that couple with saId first mechanical coupling means of said bearing, said first and second connection means comprising mechanical, electrical and fluidical connection members, and at least one welding gun connected to said support plate, whereby upon insertion of said unit into said shell and coupling of said first and second mechanical coupling means, said first and second connection means are mutually engaged thus automatically establishing all necessary mechanical, electrical and fluidical connections between said column and said unit, as a consequence of the simple mechanical coupling of said column and unit.
Claim 3
Dependent Claim
115 words
A welding machine as set forth in claim 1, wherein the mechanical connection members of said first connection means comprise a ring and in said ring a longitudinal split, and the mechanical connection members of said second connection means comprise a laterally protruding pin that penetrates into said split when the angular mutual position of said first and second connection means is correct, and to abut against said ring when said mutual position is incorrect; and wherein said electrical and fluidical connection members of said first and second connection means are mounted for mutual engagement when said pin penetrates into said split, and for avoiding any mutual contact when said pin abuts against said ring.
Claim 4
Dependent Claim
61 words
A welding machine as set forth in claim 1, wherein the mechanical connection members of said second connection means comprise a disc for approximately centering said unit within said hollow shell, and the mechanical connection members of said second connection means comprise a ring having a tapered end portion in order to exactly center said connection means upon mutual engagement thereof.
Claim 5
Dependent Claim
61 words
A welding machine as set forth in claim 1, wherein the electrical connection members of said first and second connection means are disposed at a level considerably higher than the level of the fluidical connection members of the respective composite connection means, whereby said electrical connection members cannot be wetted nor fouled by leaks or sprays from the fluidical connection members.
Claim 6
Dependent Claim
93 words
A welding machine as set forth in claim 1, further comprising at least one assembly comprising a support element mechanically coupled with said support plate of the unit of operative members, and at least one welding gun movably mounted on said support element, and wherein said support plate and support element have complementary connection means comprising mechanical, electrical and fluidical connection members in order to establish all necessary mechanical, electrical and fluidical connections between said unit and said assembly of the welding gun, upon mechanical coupling of said support element and support plate.
Claim 7
Dependent Claim
55 words
A welding machine as set forth in claim 1, further comprising one assembly comprising a support element mechanically coupled with said support plate of the unit of operative members, at least two welding guns movably mounted on said support element, and means for controlling the movements of said welding guns relative to said support element.
Claim 8
Dependent Claim
31 words
A welding machine as set forth in claim 6, wherein a part of said means for controlling the movements of said welding guns is common to at least two welding guns.
References Cited (Backward Citations)
US2376692A
Cited
US3222494A
Cited
US3521024A
Cited
US3594537A
Cited
US3594534A
Cited
US3784782A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |