CN106141404A - A kind of electrode mechanism of metal tube projection welding - Google Patents
A kind of electrode mechanism of metal tube projection welding Download PDFInfo
- Publication number
- CN106141404A CN106141404A CN201610834061.7A CN201610834061A CN106141404A CN 106141404 A CN106141404 A CN 106141404A CN 201610834061 A CN201610834061 A CN 201610834061A CN 106141404 A CN106141404 A CN 106141404A
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- CN
- China
- Prior art keywords
- electrode
- fixed cover
- fixing seat
- outlet pipe
- welding
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- 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.)
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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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/14—Projection welding
-
- 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
- B23K11/3009—Pressure electrodes
-
- 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
- B23K11/31—Electrode holders and actuating devices therefor
-
- 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
- B23K11/36—Auxiliary equipment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Resistance Welding (AREA)
Abstract
The electrode mechanism of a kind of metal tube projection welding, belongs to resistance projection-welding machine technology field, for welding water heater liner with outlet pipe.Its technical scheme is: connecting plate is square plate, connecting plate is fixed on the lower plane of the epirelief pad of projection welder, fixing seat is circular cylinder, fixing seat is connected with the lower face of connecting plate, connecting plate is relative with the central bore of fixing seat, two water pipe heads are separately fixed at the left and right sides of fixing seat, electrode fixed cover is connected in the endoporus of fixing seat, electrode is arranged in motor fixed cover, electrode mandrel is connected in electrode, stop collar is arranged on the endoporus lower end of electrode fixed cover, and the diameter of bore of stop collar matches with the outlet pipe external diameter welded.Present configuration is rationally, firm welding, steady quality, weld interval be short, smoke dust, it is possible to protection outlet pipe connect screw thread by welding injury and the burn-off phenomenon that eliminates outlet pipe, significantly improve production efficiency, reduce production cost.
Description
Technical field
The present invention relates to the electrode mechanism of a kind of resistance projection-welding machine that water heater liner is welded with outlet pipe, belong to
Resistance projection-welding machine technology field.
Background technology
In the production process of water heater, need to weld together water heater liner with outlet pipe, the most traditional weldering
The method of connecing is gas shield welding welding method, and this welding method length weld interval, efficiency is low, flue dust is big, cost is high, inadaptable produces
The needs of development.Along with the improvement of welding procedure and the requirement to protection environment, water heater liner and the welding method of outlet pipe
Introduce resistance projection-welding welding method, resistance projection-welding welding method uses the welding of upper/lower electrode direct press type.Upper/lower electrode
Although direct press type welding has, weld interval is short, smoke dust, the advantage of minimizing air pollution, but the welding of direct press type makes hot water
The outlet pipe of device creates serious burning, and the screw thread making outlet pipe be connected with ball valve is deformed, in order to eliminate screw thread
Deformation adds the operation of postwelding finishing deformed threads, causes the increase of production process and the raising of production cost.In order to cancel
The later process increased conciliates the phenomenon having decided water pipe burning, it is necessary to improve the welding of existing electrode direct press type.One
Plant and arise at the historic moment.
Summary of the invention
The technical problem to be solved is to provide the electrode mechanism of a kind of metal tube projection welding, this electrode
Mechanism welds for water heater liner and outlet pipe, it is possible to achieve weld interval is short, smoke dust, it is possible to protect the company of outlet pipe
Connect screw thread not by welding injury and eliminating the burn-off phenomenon of outlet pipe, and eliminate the operation of postwelding finishing deformed threads, fall
The low production cost of water heater.
The technical scheme solving above-mentioned technical problem is:
The electrode mechanism of a kind of metal tube projection welding, it includes connecting plate, fixing seat, water pipe head, electrode fixed cover, limit
Position set, electrode mandrel, attachment screw, electrode, connecting plate is square plate, and connecting plate is fixed on the lower flat of the epirelief pad of projection welder
Face, fixing seat is circular cylinder, and fixing seat is connected with the lower face of connecting plate, the central bore phase of connecting plate and fixing seat
Right, two water pipe heads are separately fixed at the left and right sides of fixing seat, and electrode fixed cover is connected in the endoporus of fixing seat, electrode
Being arranged in motor fixed cover, electrode mandrel is positioned at electrode, and motor mandrel is connected by attachment screw and electrode are fixing, motor
Fixed cover there are the cooling water pipe along motor fixed cover length direction, cooling water pipe are connected with the water pipe head of fixing seat,
Stop collar is arranged on the endoporus lower end of electrode fixed cover and fixes with jackscrew, outside the diameter of bore of stop collar is with the outlet pipe welded
Footpath matches.
The electrode mechanism of above-mentioned metal tube projection welding, the lower loop of described electrode fixed cover is wound with water(-cooling) jacket, water
The upper end of coolant jacket is connected with the lower end of the cooling water pipe in electrode fixed cover, and water(-cooling) jacket external rings is wound with overcoat.
The electrode mechanism of above-mentioned metal tube projection welding, the outer wall Shang You 3-4 road surrounding electric poles of described electrode fixed cover
The seal groove of fixed cover periphery, seal groove is vertical with the length direction of electrode fixed cover, is embedded with O in seal groove.
The electrode mechanism of above-mentioned metal tube projection welding, described electrode mandrel is multidiameter, electrode mandrel bottom straight
Footpath is less than the diameter on top, and electrode mandrel lower diameter matches with the internal diameter of the outlet pipe welded, electrode mandrel upper diameter
Match with the external diameter of the outlet pipe welded.
The electrode mechanism of above-mentioned metal tube projection welding, two horizontal circular holes are arranged at described electrode mandrel bottom, two
Circular hole is the most arranged in parallel, places strong magnet in circular hole, and one end of circular hole is shoulder hole, and the other end plug of circular hole is closed.
The invention has the beneficial effects as follows:
Outlet pipe, in the inside of electrode fixed cover, is upwardly into before welding by the electrode of the present invention and electrode mandrel along stop collar,
The inner hole sleeve of outlet pipe is in the bottom of electrode mandrel, and outlet pipe is held, so by the strong magnet in the bottom circular hole of electrode mandrel
Before achieving weldering, outlet pipe fixes and is accurately positioned；During welding, electrode mechanism is descending with epirelief pad, when outlet pipe and hot water
Due to the effect of pressure when device inner bag contacts, the inclined-plane pressurized inward collapsible of electrode, by the lower end of outlet pipe cylindrical tightly
Embracing, the screw thread on outlet pipe is in the top being embraced position, and during welding, electric current passes through electrode and the lower section of outlet pipe, by hot water
Device inner bag welds together with outlet pipe, and the screw thread on outlet pipe top stands intact.Present configuration is reasonable, firm welding, matter
Amount is stable, weld interval is short, smoke dust, it is possible to the screw thread that connects of protection outlet pipe not by welding injury and eliminates outlet pipe
Burn-off phenomenon, and eliminate the operation of postwelding finishing deformed threads, significantly improve production efficiency, reduce production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the installation site schematic diagram of the present invention.
In figure, labelling is as follows: connecting plate 1, fixing seat 2, water pipe head 3, overcoat 4, electrode fixed cover 5, water(-cooling) jacket 6, limit
Position set 7, plug 8, O 9, strong magnet 10, electrode mandrel 11, attachment screw 12, electrode 13, projection welder body 14, welding machine gas
Road 15, welding transformer 16, cooling water channel 17, electromagnetic valve 18, pressurized cylinder 19, polishing head 20, epirelief pad 21, can moving-conductor
22, electrode mechanism 23, lower projection welding dish 24, water heater liner 25, outlet pipe 26.
Detailed description of the invention
The present invention is by connecting plate 1, fixing seat 2, water pipe head 3, overcoat 4, electrode fixed cover 5, water(-cooling) jacket 6, stop collar
7, plug 8, O 9, strong magnet 10, electrode mandrel 11, attachment screw 12, electrode 13 form.
Fig. 2 shows, the electrode mechanism 23 of the present invention is arranged on projection welder.Projection welder includes projection welder body 14, welding machine
Gas circuit 15, welding transformer 16, cooling water channel 17, electromagnetic valve 18, pressurized cylinder 19, polishing head 20, epirelief pad 21, movably lead
Body 22, electrode mechanism 23, lower projection welding dish 24.Projection welder body 14 fixes on the ground, and polishing head 20 is arranged on projection welder body
The upper bracket front end of 14, pressurized cylinder 19 is arranged on the top of polishing head 20, and electromagnetic valve 18 is arranged on the top of pressurized cylinder 19,
Epirelief pad 21 is connected with the piston rod of pressurized cylinder 19, the rear end of epirelief pad 21 with can the movable end of moving-conductor 22 be connected
Connecing, welding transformer 16 is arranged on the inside of projection welder body 14, the upper end of welding transformer 14 secondary coil with can moving-conductor
The fixing end of 22 is connected, and the lower end of welding transformer 14 secondary coil is connected with the rear end of lower projection welding dish 24, lower projection welding dish
The upper end of 24 lower carriages being fixed on projection welder body 14, the lower of epirelief pad 21 that electrode mechanism 23 is fixed at projection welder is put down
Face.During welding, electromagnetic valve 18 commutates, and the piston rod of pressurized cylinder 19 extends downwardly from, drive epirelief pad 21 and electrode mechanism 23 to
Bottom offset, is firmly pressed against the outlet pipe 26 of water heater on the outer wall of water heater liner 25.
Fig. 1 shows, connecting plate 1 is square plate, and the central authorities of connecting plate 1 have circular hole, connecting plate 1 to be fixed on the epirelief of projection welder
The lower plane of pad 21, fixing seat 2 is circular cylinder, and fixing seat 1 is connected with the lower face of connecting plate 1, and connecting plate 1 is with solid
The central bore of reservation 2 is relative.
Fig. 1 shows, two water pipe heads 3 are separately fixed at the left and right sides of fixing seat 2, and electrode fixed cover 5 is connected to solid
In the endoporus of reservation 2, having the cooling water pipe along motor fixed cover 5 length direction in motor fixed cover 5, cooling water pipe is with fixing
The water pipe head 3 of seat 2 is connected, and the lower loop of electrode fixed cover 5 is wound with water(-cooling) jacket 6, and the upper end of water(-cooling) jacket 6 is solid with electrode
Surely the lower end of the cooling water pipe in set 5 is connected, and water(-cooling) jacket 6 external rings is wound with overcoat 4.The present invention electrode to projection welding
Mechanism 23 have employed Forced water cooling mode, and cooling water is flowed into water(-cooling) jacket 6 by water pipe head 3 from right-hand member, then through a left side
The water pipe head 3 of end is flowed out, and the electrode 13 and the electrode mandrel 11 that create heat during to welding cool down, and substantially increase electricity
Pole 13 and the service life of electrode mandrel 11.
Fig. 1 shows, electrode 13 is arranged in motor fixed cover 5, and electrode mandrel 11 is positioned at electrode 13, and motor mandrel 11 leads to
Cross that attachment screw 12 and electrode 13 is fixing to be connected.Stop collar 7 is arranged on the endoporus lower end of electrode fixed cover 5 and fixes with jackscrew,
The diameter of bore of stop collar 7 matches with outlet pipe 26 external diameter welded, and outlet pipe 26 inserts and electricity from the endoporus of stop collar 7
Pole piece axle 11 is connected, and stop collar 7 plays guide effect when being inserted upwardly into outlet pipe 26, is also prevented from electrode 13 and electrode simultaneously
Mandrel 11 comes off downwards.
Fig. 1 shows, electrode mandrel 11 is multidiameter, and the diameter of electrode mandrel 11 bottom is less than the diameter on top, electrode cores
Axle 11 lower diameter matches with the internal diameter of the outlet pipe 26 welded, electrode mandrel 11 upper diameter and the outlet pipe 26 welded
External diameter matches.During welding, outlet pipe 26 is enclosed within the thin diameter portion of electrode mandrel 11 bottom.
Fig. 1 shows, two horizontal circular holes are arranged at electrode mandrel 11 bottom, and two circular holes are the most arranged in parallel, put in circular hole
Putting strong magnet 10, one end of circular hole is shoulder hole, and the other end plug 8 of circular hole is closed.Strong magnet 10 is to being enclosed within electrode mandrel
The outlet pipe 26 of 11 bottoms plays adsorption, and before making weldering, outlet pipe achieves fixing and is accurately positioned.
Fig. 1 shows, the seal groove of surrounding electric poles fixed cover 5 periphery, outer wall Shang You 3-4 road of electrode fixed cover 5, seal groove
Vertical with the length direction of electrode fixed cover 5, it is embedded with O 9 in seal groove, cooling water is played sealing function by O 9,
Effectively prevent from cooling down the outside seepage of water.
The work process of the present invention is as follows:
Being upwardly into along stop collar 7 by outlet pipe 26 before Han Jie, the inner hole sleeve of outlet pipe 26 is at the bottom of electrode mandrel 11, electrode
Outlet pipe 26 is held by the strong magnet 10 in the bottom circular hole of mandrel 11, it is achieved that before weldering, outlet pipe 26 is fixing and the most fixed
Position.
During welding, the piston rod of the pressurized cylinder 19 of projection welder is descending, drives epirelief pad 21 and electrode mechanism 23 descending,
The electric-conductor secondary loop simultaneously making projection welder forms closed loop, and water heater liner 25 and outlet pipe 26 are in projection welder secondary loop
Front end among closed loop, outlet pipe 26 entirety is contained in the electrode mechanism 23 of projection welding, stretches out 3-5mm, outlet pipe in lower end
The screw thread of 26 is not involved in conduction above welding electrode conducting surface, and the lower end of outlet pipe 26 participates in conduction, when electricity given by transformator
Time, water heater liner 25 is welded together by the low-voltage and high-current in secondary loop with outlet pipe 26 moment.
When the outlet pipe 26 of water heater is pressed on the outer wall of water heater liner 25, owing to the effect of pressure makes electrode 13 He
Electrode mandrel 11 moves vertically upward, and at this moment the lower end of the inclined-plane compressing electrode 13 of electrode fixed cover 5 inwardly closes up, by outlet pipe
The lower end of 26 is embraced tightly, effectively prevent the virtual connection of electrode 13 and outlet pipe 26, it is to avoid during welding, big electric current is by electrode
13 damages, the screw thread of outlet pipe 26 is in the top of conducting surface, and welding rear thread stands intact, owing to being the lower end of outlet pipe 26
Participating in conduction, upper end is non-conductive does not has electric current to pass through, so avoiding the serious burn-off phenomenon of outlet pipe 26.
Claims (5)
1. the electrode mechanism of a metal tube projection welding, it is characterised in that: it includes connecting plate (1), fixing seat (2), water
Pipe joint (3), electrode fixed cover (5), stop collar (7), electrode mandrel (11), attachment screw (12), electrode (13), connecting plate
(1) being square plate, connecting plate (1) is fixed on the lower plane of the epirelief pad (21) of projection welder, and fixing seat (2) is ring-shaped cylinder
Body, fixing seat (2) is connected with the lower face of connecting plate (1), and connecting plate (1) is relative with the central bore of fixing seat (2), two
Water pipe head (3) is separately fixed at the left and right sides of fixing seat (2), and electrode fixed cover (5) is connected to the endoporus of fixing seat (2)
In, electrode (13) is arranged in motor fixed cover (5), and electrode mandrel (11) is positioned at electrode (13), and motor mandrel (11) passes through
Attachment screw (12) and electrode (13) are fixing to be connected, and have along motor fixed cover (5) length direction in motor fixed cover (5) is cold
But water pipe, cooling water pipe is connected with the water pipe head (3) of fixing seat (2), and stop collar (7) is arranged on electrode fixed cover (5)
Endoporus lower end is also fixed with jackscrew, and the diameter of bore of stop collar (7) matches with outlet pipe (26) external diameter welded.
The electrode mechanism of metal tube projection welding the most according to claim 1, it is characterised in that: described electrode fixed cover
(5) lower loop is wound with the lower end of the cooling water pipe in water(-cooling) jacket (6), the upper end of water(-cooling) jacket (6) and electrode fixed cover (5)
Being connected, water(-cooling) jacket (6) external rings is wound with overcoat (4).
The electrode mechanism of metal tube projection welding the most according to claim 2, it is characterised in that: described electrode fixed cover
(5) the length side of the seal groove of surrounding electric poles fixed cover (5) periphery, outer wall Shang You 3-4 road, seal groove and electrode fixed cover (5)
To vertically, in seal groove, it is embedded with O (9).
The electrode mechanism of metal tube projection welding the most according to claim 3, it is characterised in that: described electrode mandrel
(11) be multidiameter, the diameter of electrode mandrel (11) bottom less than the diameter on top, electrode mandrel (11) lower diameter with weld
The internal diameter of outlet pipe (26) match, electrode mandrel (11) upper diameter matches with the external diameter of the outlet pipe (26) welded.
The electrode mechanism of metal tube projection welding the most according to claim 4, it is characterised in that: described electrode mandrel
(11) two horizontal circular holes are arranged at bottom, and two circular holes are the most arranged in parallel, place strong magnet (10), one end of circular hole in circular hole
For shoulder hole, the other end of circular hole plug (8) is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610834061.7A CN106141404B (en) | 2016-09-20 | 2016-09-20 | A kind of electrode mechanism of metal tube projection welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610834061.7A CN106141404B (en) | 2016-09-20 | 2016-09-20 | A kind of electrode mechanism of metal tube projection welding |
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| Publication Number | Publication Date |
|---|---|
| CN106141404A true CN106141404A (en) | 2016-11-23 |
| CN106141404B CN106141404B (en) | 2018-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610834061.7A Active CN106141404B (en) | 2016-09-20 | 2016-09-20 | A kind of electrode mechanism of metal tube projection welding |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723572A (en) * | 2018-07-20 | 2018-11-02 | 上海兰盈智能科技有限公司 | Top electrode fixes project-welding nut structure |
| CN110814501A (en) * | 2018-08-14 | 2020-02-21 | 上海安莱德汽车零部件有限公司 | Lower electrode seat device with water cooling and air blowing for projection welding of vehicle body parts |
| CN115815725A (en) * | 2023-02-20 | 2023-03-21 | 成都大金航太科技股份有限公司 | Brazing positioning protection device and brazing method for honeycomb parts |
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| JPH07314152A (en) * | 1994-05-23 | 1995-12-05 | Ondo Kosakusho:Kk | Electrode structure of bolt welding machine and electrode structure of nut welding machine |
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| EP1579943A1 (en) * | 2002-11-04 | 2005-09-28 | Ocon Industrielle Konzepte, S.L. | Improved resistance welding device |
| CN201313235Y (en) * | 2008-12-22 | 2009-09-23 | 联伟汽车零部件(重庆)有限公司 | External circulating water-cooled lower electrode suitable for bolt and nut projection welding |
| CN206084114U (en) * | 2016-09-20 | 2017-04-12 | 唐山开元阻焊设备有限公司 | Metal pipe fittings projection welding welded electrode device |
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2016
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| GB545063A (en) * | 1940-01-29 | 1942-05-08 | Briggs Mfg Co | Improvements in and relating to electric welding apparatus |
| JPH07314152A (en) * | 1994-05-23 | 1995-12-05 | Ondo Kosakusho:Kk | Electrode structure of bolt welding machine and electrode structure of nut welding machine |
| JPH0957464A (en) * | 1995-08-21 | 1997-03-04 | Kanto Auto Works Ltd | Spot welding gun |
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| CN206084114U (en) * | 2016-09-20 | 2017-04-12 | 唐山开元阻焊设备有限公司 | Metal pipe fittings projection welding welded electrode device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723572A (en) * | 2018-07-20 | 2018-11-02 | 上海兰盈智能科技有限公司 | Top electrode fixes project-welding nut structure |
| CN110814501A (en) * | 2018-08-14 | 2020-02-21 | 上海安莱德汽车零部件有限公司 | Lower electrode seat device with water cooling and air blowing for projection welding of vehicle body parts |
| CN115815725A (en) * | 2023-02-20 | 2023-03-21 | 成都大金航太科技股份有限公司 | Brazing positioning protection device and brazing method for honeycomb parts |
| CN115815725B (en) * | 2023-02-20 | 2023-05-12 | 成都大金航太科技股份有限公司 | Honeycomb part brazing positioning protection device and brazing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106141404B (en) | 2018-02-06 |
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Effective date of registration: 20200319 Address after: 063000 Torch Road, Tangshan City hi tech Zone, Hebei, 189 Patentee after: TANGSHAN KAIYUAN AUTOWELDING SYSTEM Co.,Ltd. Address before: 063020 Torch Road, 189 hi tech Industrial Park, North Road, Hebei, Tangshan City Patentee before: TANGSHAN KAIYUAN RESISTANCE WELDING EQUIPMENT Co.,Ltd. |
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