CN103521904A - Resistance welding method - Google Patents
Resistance welding method Download PDFInfo
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- CN103521904A CN103521904A CN201310470862.6A CN201310470862A CN103521904A CN 103521904 A CN103521904 A CN 103521904A CN 201310470862 A CN201310470862 A CN 201310470862A CN 103521904 A CN103521904 A CN 103521904A
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- saddle
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- 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
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
- B23K11/0026—Welding of thin articles
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0277—Rods, electrodes, wires of non-circular cross-section
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a resistance welding method which includes the following technological steps: (a) obtaining a concentric cylindrical thin-wall shell with a through hole, (b) obtaining a tube with the saddle-shaped end portion, (c) obtaining a first electrode with an inner hole and the saddle face, (d) obtaining a second electrode with the saddle face, (e) setting the tube to enable the saddle-shaped bottom face of the tube to be in contact with and completely fitted with the saddle face of the second electrode, (f) setting the shell to enable the tube to be sleeved with the through hole, (g) setting the first electrode to enable the tube to be sleeved with the inner hole of the first electrode, and (h) exerting certain pre-pressing force on the first electrode, the shell, the tube and the second electrode, and conducting electrification to enable a contact area of the shell and the tube to generate a welding nugget. According to the resistance welding method, the mode that the saddle-shaped hook face and the cylindrical hook face are completely fitted is adopted, components are combined through resistance welding, the design is ingenious, operation is easy to achieve, and shortcomings caused by conventional welding modes such as brazing and electrowelding can be overcome.
Description
Technical field
The present invention relates to enclosed refrigeration compressor field, relate in particular to swirl type cold compressor, compressor case member with have air-breathing, exhaust, a kind of welding method that all pipe of oil or other purposes welds.
Background technology
At present, swirl type cold compressor casing component, with have air-breathing, exhaust, all the welding manner of the pipe of oil or other purposes has soldering, electric welding, electric resistance welding etc.
Soldering and electric welding, as normal welding mode, have its weak point:
1, need the extra consumptive materials such as scolder, welding slag preventing agent that use, production cost is high;
2, stability of the welding quality is poor, easily occurs that the weld defects such as pore, oxidation, slag inclusion, these defects have directly caused the generation of leaking in welding process.Brazing mode particularly, although there will not be leakage by quality control method in compressor production process, while carrying out pipe arrangement weld job in the compressor user hands such as Dan air-conditioning manufacturer, because adopt equally brazing mode, so can be at welding gun flame make the original brazing solder fusing of compressor and then leak during long or excess Temperature;
3, the single work piece production time is long, beat is slow, efficiency is low.
4, whole operating process meeting produces more smog and dust, and operating environment is poor.
Resistance welded mode is generally plane and plane-welding or plane and conical surface welding in the ready-made case of enclosed refrigeration compressor field application.But no matter adopt any form to weld, all must first in a certain region of shell, go out a plane, then go out in the plane manhole, shell processing technology is complicated, so processing cost is high.
Summary of the invention
The present invention is directed to the proposition of above problem, and a kind of method for resistance welding of research and design.The technological means that the present invention adopts is as follows:
, comprise following processing step:
(a) obtain the concentric column thin wall with through hole;
(b) obtain the pipe with shape of a saddle end, shape of a saddle end comprises shape of a saddle bulge loop face and shape of a saddle bottom surface;
(c) obtain first electrode with endoporus and saddle face;
(d) obtain second electrode with saddle face;
(e) pipe is set so that its shape of a saddle bottom surface contacts with the saddle face of the second electrode and laminating completely;
(f) shell is set so that its through hole is inserted in pipe, make the inner surface of shell and the shape of a saddle bulge loop face of pipe contacts and completely laminating;
(g) the first electrode is set so that its endoporus is inserted in pipe, its saddle face is contacted and laminating completely with the outer surface of shell;
(h) described the first electrode, shell, pipe and the second electrode are applied to certain precompression, then pass to electric current so that shell-and-tube contact area produces weld nugget.
It as preferred pipe, is the concentric pipe with shape of a saddle end; Pipe is the steel pipe with shape of a saddle end forming by deep stretching process, in shape of a saddle end, on pipe draw direction, stamps out the bulge loop part equidistant with shape of a saddle end, and the curved surface at place, bulge loop upper end is shape of a saddle bulge loop face; On pipe stretching rightabout, form the annular groove equidistant with shape of a saddle end, the curved surface at bottom portion of groove place is shape of a saddle bottom surface.
Center line projection in the plane perpendicular to tubular axis line as the shape of a saddle bulge loop face of preferred pipe is shaped as circle, oval, rectangle.
The plane that is passed tubular axis line as the shape of a saddle end of preferred pipe is dissectd, and obtains respectively boss cross sectional shape for semicircle, rectangle, trapezoidal, triangle, arc, and acquisition groove cross sectional shape is semicircle, rectangle, trapezoidal, triangle, arc.
As preferred shell, be a kind of concentric column thin wall processing by roll bending, welding and turning, or another kind of by seamless steel pipe being carried out to the concentric column thin wall that turning processes; Through hole is the circular hole processing by methods such as punching or borings in the side of shell.
The axis of through hole and the intersect vertical axis of shell as preferred shell.
As preferably in step (e), the radius of curvature of the shape of a saddle bottom surface of pipe equates with the radius of curvature of the saddle face of the second electrode; In step (f), the radius of curvature of the inner surface of shell equates with the radius of curvature of the shape of a saddle bulge loop face of pipe; In step (g), the radius of curvature of saddle face of the first electrode and the radius of curvature of the outer surface of shell equate.
As the axis of preferred pipe, the axis of the axis of the through hole of shell, the first electrode and the axis of the second electrode are coaxial.
As preferably in step (h), weld nugget is annular weld zone.
Material as preferred pipe and shell is the steel of steel, copper plated steel or other material of coating.
Compared with the prior art, a kind of method for resistance welding of the present invention has the following advantages:
1, the normal welding mode such as welding method of the present invention and electric welding, soldering is compared, and uses resistance welded, does not need the consumptive materials such as scolder, has saved material cost;
2, welding method of the present invention is compared with normal welding modes such as electric welding, solderings, use resistance welded, nugget is surrounded by plasticity ring all the time while forming and is isolated with air, be difficult for producing the weld defects such as pore, slag inclusion, oxidation, greatly reduce the possibility that leakage occurs, welding quality stable;
3, the normal welding mode such as welding method of the present invention and electric welding, soldering is compared, and uses resistance welded, and single workpiece is short weld interval, has improved production efficiency;
4, the normal welding mode such as welding method of the present invention and electric welding, soldering is compared, and uses resistance welded, and whole operating process meeting produces few smog and dust, has improved operating environment;
5, welding method of the present invention is compared with the conventional resistance welded of the conical surface with plane or plane with plane, need to not simplify shell processing technology at shell upper punch out-of-plane, has saved processing cost.
A kind of method for resistance welding of the present invention, the form that adopts a kind of saddle-shaped surface and Cylinder Surface to fit completely, is combined into member by resistance welded, design ingenious, simple to operate, the deficiency that can avoid the normal welding modes such as soldering and electric welding to cause.
Accompanying drawing explanation
Fig. 1 be before positioning welding shell, pipe, the first and second electrodes along the cut-away illustration on shell axis direction;
Fig. 2 be before positioning welding shell, pipe, the first and second electrodes perpendicular to the cut-away illustration on shell axis direction;
Fig. 3 is while welding, and shell, pipe, the first and second electrodes are along the cut-away illustration on shell axis direction;
Fig. 4 is while welding, and shell, pipe, the first and second electrodes are perpendicular to the cut-away illustration on shell axis direction;
Wherein:
10, shell, 12, through hole;
20, pipe, 21, shape of a saddle end, 22, shape of a saddle end bulge loop face, 23, shape of a saddle bottom surface;
30, the first electrode, the 31, first electrode endoporus, the 32, first electrode saddle face;
40, the second electrode, the 41, second electrode saddle face;
50, nugget anchor ring.
The specific embodiment
As Figure 1-Figure 4, a kind of method for resistance welding, comprises following processing step:
(a) obtain the concentric column thin wall 10 with through hole 12;
(b) obtain the pipe 20 with shape of a saddle end 21, shape of a saddle end 21 comprises shape of a saddle bulge loop face 22 and shape of a saddle bottom surface 23;
(c) obtain first electrode 30 with endoporus 31 and saddle face 32;
(d) obtain second electrode 40 with saddle face 41;
(e) pipe 20 is set so that its shape of a saddle bottom surface 23 contacts with the saddle face 41 of the second electrode 40 and laminating completely;
(f) shell 10 is set so that its through hole 12 is inserted in pipe 20, makes the inner surface of shell 10 and the shape of a saddle bulge loop face 22 of pipe 20 contact and fit completely;
(g) the first electrode 30 is set so that its endoporus 31 is inserted in pipe 20, its saddle face 32 is contacted and laminating completely with the outer surface of shell 10;
(h) to described the first electrode 30, shell 10, manage the 20 and second electrode 40 and apply certain precompression, then pass to electric current so that shell 10 and pipe 20 contact areas produce weld nugget 50.
By electric resistance welding, weld, do not need the consumptive materials such as scolder, saved material cost.
Described pipe 20 is the concentric pipes with shape of a saddle end 21; Pipe 20 is the steel pipes with shape of a saddle end 21 that form by deep stretching process, in shape of a saddle end 21, on pipe 20 draw directions, stamps out the bulge loop part equidistant with shape of a saddle end 21, and the curved surface at place, bulge loop upper end is shape of a saddle bulge loop face 22; On pipe 20 stretching rightabouts, form the annular groove equidistant with shape of a saddle end 21, the curved surface at bottom portion of groove place is shape of a saddle bottom surface 23.
The projection in the plane perpendicular to pipe 20 axis of the center line of the shape of a saddle bulge loop face 22 of described pipe 20 is shaped as circle, oval, rectangle.
The shape of a saddle end 21 of described pipe 20 is passed the plane of pipe 20 axis and dissects, and obtains respectively boss cross sectional shape for semicircle, rectangle, trapezoidal, triangle, arc, and obtaining groove cross sectional shape is semicircle, rectangle, trapezoidal, triangle, arc.
Described shell 10 is a kind of concentric column thin walls 10 that process by roll bending, welding and turning, or another kind of by seamless steel pipe being carried out to the concentric column thin wall 10 that turning processes; Through hole 12 is the circular holes that process by methods such as punching or borings in the side of shell 10.
The axis of the through hole 12 of described shell 10 and the intersect vertical axis of shell 10, make welding location more accurate.
Described in step (e), the radius of curvature of managing 20 shape of a saddle bottom surface 23 equates with the radius of curvature of the saddle face 41 of the second electrode 40; In step (f), the radius of curvature of the inner surface of shell 10 equates with the radius of curvature of the shape of a saddle bulge loop face 22 of pipe 20; In step (g), the radius of curvature of the saddle face 32 of the first electrode 30 equates with the radius of curvature of the outer surface of shell 10, makes welding location more accurate, makes saddle-shaped surface and Cylinder Surface reach laminating completely, is more conducive to the welding of electric resistance welding.
The axis of the axis of the through hole 12 of the axis of described pipe 20, shell 10, the axis of the first electrode 30 and the second electrode 40 is coaxial, makes welding location more accurate.
Described in step (h), weld nugget 50 is annular weld zone, uses resistance welded, nugget is surrounded by plasticity ring all the time while forming and is isolated with air, be difficult for producing the weld defects such as pore, slag inclusion, oxidation, greatly reduce the possibility that leakage occurs, welding quality stable.
The material of described pipe 20 and shell 10 is the steel of steel, copper plated steel or other material of coating.
A kind of method for resistance welding of the present invention, the form that adopts a kind of saddle-shaped surface and Cylinder Surface to fit completely, compares with the conventional resistance welded of the conical surface with plane or plane with plane, need to be at shell upper punch out-of-plane, simplify shell processing technology, saved processing cost; By resistance welded, be combined into member, design ingenious, simple to operate, the deficiency that can avoid the normal welding modes such as soldering and electric welding to cause; Single workpiece is short weld interval, has improved production efficiency; Whole operating process meeting produces few smog and dust, has improved operating environment.
The above; it is only the preferably specific embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; according to technical scheme of the present invention and inventive concept thereof, be equal to replacement or changed, within all should being encompassed in protection scope of the present invention.
Claims (10)
1. a method for resistance welding, is characterized in that comprising following processing step:
(a) obtain the concentric column thin wall (10) with through hole (12);
(b) obtain the pipe (20) with shape of a saddle end (21), shape of a saddle end (21) comprise shape of a saddle bulge loop face (22) and shape of a saddle bottom surface (23);
(c) obtain first electrode (30) with endoporus (31) and saddle face (32);
(d) obtain second electrode (40) with saddle face (41);
(e) pipe (20) is set so that its shape of a saddle bottom surface (23) contacts with the saddle face (41) of the second electrode (40) and laminating completely;
(f) shell (10) is set so that its through hole (12) is inserted in pipe (20), make the inner surface of shell (10) and the shape of a saddle bulge loop face (22) of pipe (20) contacts and completely laminating;
(g) the first electrode (30) is set so that its endoporus (31) is inserted in pipe (20), its saddle face (32) is contacted and laminating completely with the outer surface of shell (10);
(h) described the first electrode (30), shell (10), pipe (20) and the second electrode (40) are applied to certain precompression, then pass to electric current so that shell (10) and pipe (20) contact area produce weld nugget (50).
2. a kind of method for resistance welding according to claim 1, is characterized in that: pipe (20) is the concentric pipe with shape of a saddle end (21); Pipe (20) is the steel pipe with shape of a saddle end (21) forming by deep stretching process, in shape of a saddle end (21), on pipe (20) draw direction, stamp out the bulge loop part equidistant with shape of a saddle end (21), the curved surface at place, bulge loop upper end is shape of a saddle bulge loop face (22); On pipe (20) stretching rightabout, form the annular groove equidistant with shape of a saddle end (21), the curved surface at bottom portion of groove place is shape of a saddle bottom surface (23).
3. a kind of method for resistance welding according to claim 2, is characterized in that: the projection in the plane perpendicular to pipe (20) axis of the center line of the shape of a saddle bulge loop face (22) of pipe (20) is shaped as circle, oval, rectangle.
4. a kind of method for resistance welding according to claim 2, it is characterized in that: the shape of a saddle end (21) of pipe (20) is passed the plane of pipe (20) axis and dissects, obtain respectively boss cross sectional shape for semicircle, rectangle, trapezoidal, triangle, arc, obtaining groove cross sectional shape is semicircle, rectangle, trapezoidal, triangle, arc.
5. a kind of method for resistance welding according to claim 1, it is characterized in that: shell (10) is a kind of concentric column thin wall (10) processing by roll bending, welding and turning, or the another kind of concentric column thin wall (10) processing by seamless steel pipe being carried out to turning; Through hole (12) is the circular hole processing by methods such as punching or borings in the side of shell (10).
6. a kind of method for resistance welding according to claim 5, is characterized in that: the axis of the through hole (12) of shell (10) and the intersect vertical axis of shell (10).
7. a kind of method for resistance welding according to claim 1, is characterized in that: in step (e), the pipe radius of curvature of shape of a saddle bottom surface (23) of (20) and the radius of curvature of the saddle face (41) of the second electrode (40) equate; In step (f), the radius of curvature of the inner surface of shell (10) equates with the radius of curvature of the shape of a saddle bulge loop face (22) of pipe (20); In step (g), the radius of curvature of the saddle face (32) of the first electrode (30) equates with the radius of curvature of the outer surface of shell (10).
8. a kind of method for resistance welding according to claim 1, is characterized in that: the pipe axis of (20), the axis of the through hole (12) of shell (10) are, the axis of the axis of the first electrode (30) and the second electrode (40) is coaxial.
9. a kind of method for resistance welding according to claim 1, is characterized in that: in step (h), weld nugget (50) is annular weld zone.
10. a kind of method for resistance welding according to claim 1, is characterized in that: the material of pipe (20) and shell (10) is the steel of steel, copper plated steel or other material of coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470862.6A CN103521904B (en) | 2013-10-10 | 2013-10-10 | A kind of method for resistance welding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470862.6A CN103521904B (en) | 2013-10-10 | 2013-10-10 | A kind of method for resistance welding |
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| CN103521904A true CN103521904A (en) | 2014-01-22 |
| CN103521904B CN103521904B (en) | 2015-11-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106181002A (en) * | 2016-08-17 | 2016-12-07 | 浙江瑞庆汽车零部件有限公司 | Bypass valve seat automatic welding machine |
| CN107214483A (en) * | 2017-07-25 | 2017-09-29 | 临海市澳法管业有限公司 | A kind of saddle camber related subgroup water pipe manufacture method and its special equipment |
| CN109108443A (en) * | 2017-06-22 | 2019-01-01 | 鹤山联塑实业发展有限公司 | A kind of fire extinguisher nozzle and upper seal head structure and its welder and its welding method |
| CN111299782A (en) * | 2016-10-07 | 2020-06-19 | 安波福技术有限公司 | Resistance welding device and method using same |
| CN115243821A (en) * | 2020-02-28 | 2022-10-25 | 三菱电机株式会社 | Method for manufacturing hermetic compressor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106181002A (en) * | 2016-08-17 | 2016-12-07 | 浙江瑞庆汽车零部件有限公司 | Bypass valve seat automatic welding machine |
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| CN111299782A (en) * | 2016-10-07 | 2020-06-19 | 安波福技术有限公司 | Resistance welding device and method using same |
| CN109108443A (en) * | 2017-06-22 | 2019-01-01 | 鹤山联塑实业发展有限公司 | A kind of fire extinguisher nozzle and upper seal head structure and its welder and its welding method |
| CN107214483A (en) * | 2017-07-25 | 2017-09-29 | 临海市澳法管业有限公司 | A kind of saddle camber related subgroup water pipe manufacture method and its special equipment |
| CN107214483B (en) * | 2017-07-25 | 2023-04-14 | 临海市澳法管业有限公司 | Saddle surface penetration welding water pipe manufacturing method and special equipment thereof |
| CN115243821A (en) * | 2020-02-28 | 2022-10-25 | 三菱电机株式会社 | Method for manufacturing hermetic compressor |
| CN115243821B (en) * | 2020-02-28 | 2023-09-22 | 三菱电机株式会社 | Method for manufacturing hermetic compressor |
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| CN103521904B (en) | 2015-11-18 |
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Address after: 116600 Dalian economic and Technological Development Zone, Liaoning Pine Street, No. 8 Applicant after: Panasonic's compressor (Dalian) Co., Ltd Address before: 116000, No. 8 Pine Street, Jinzhou New District, Liaoning, Dalian Applicant before: Dalian Sanyo Compressor Co., Ltd. |
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