CN201900377U - Trace-free spot welding device for white automobile body - Google Patents
Trace-free spot welding device for white automobile body Download PDFInfo
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- CN201900377U CN201900377U CN2010206843677U CN201020684367U CN201900377U CN 201900377 U CN201900377 U CN 201900377U CN 2010206843677 U CN2010206843677 U CN 2010206843677U CN 201020684367 U CN201020684367 U CN 201020684367U CN 201900377 U CN201900377 U CN 201900377U
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Abstract
The utility model discloses a trace-free spot welding device for a white automobile body and aims at solving the problems in the prior art that welding spots of a sheet metal part for manufacturing the automobile are deformed after spot welding and the double-sided spot welding is difficult to realize in a narrow space and on a specific clamp. The utility model provides the trace-free spot welding device for the white automobile body, which is convenient to use and suitable for various occasions. The trace-free spot welding device comprises a spot welder, wherein two electrodes in the spot welder include a rod-like electrode and an electrode with a groove, a large diameter and a large contact surface; the rod-like electrode and the electrode with the groove, the large diameter and the large contact surface are arranged at the same side of a weldment, so that the pressure applied at two sides of the weldment is avoided; and since the electrode with the groove, the large diameter and the large contact surface has favorable adaptability, the single-sided trace-free spot welding of the entire automobile is realized.
Description
Technical field
The utility model relates to the automobile production field, relates in particular to a kind of seamless spot welding device that is used for the automobile body-in-white welding.
Background technology
Along with the automobile market cut-throat competition, the consumer is more and more higher to the requirement of automobile, and originally consumer's sight except from paying close attention to the conventional elements such as engine, chassis, interior trim, and the presentation quality to vehicle body has proposed very high requirement especially.Spot welding is the most frequently used welding procedure during vehicle body is produced, however during plate spot welding owing to be subjected to the huge pressure of soldering turret spare, it is inevitable producing the solder joint depression.If appear at client's visibility region, can reduce customer satisfaction or cause that client complains.In order to make automobile manufacturing enterprise break away from sheet metal component point postwelding solder joint distortion, and direct welding is difficult to realize the spot welding problem on small space and particular jig, needs seamless technology and the relevant apparatus of a kind of panel beating welding back solder joint, thereby avoids the spot welding distortion.
Day for announcing 2010.05.26, notification number are that the seamless electric welding machine of a kind of liftable articulated type platform of CN201483147U discloses such technical scheme: it comprises support, pressing mechanism, welding circuit, electrode, joint arm, joint arm connects support, support connects macrotype platform, platform is perpendicular to support, solve large-scale workpiece and put the problem that inconvenience, welding work pieces two sides all have the weldering hole and be difficult for aiming at solder joint, and because macrotype platform makes things convenient for large-scale workpiece to put, also have the quick heat radiating function, can realize the seamless welding of single face.2 deficiencies as can be seen on scheme and the accompanying drawing thereof, the one, can not multi-direction welding operation, not easy to operate such as workpiece inside and comparison small space, the 2nd, another electrode is connected on platform or the workpiece, can be big owing to spacing when two solder joints, unsuitable sometimes heating causes problems such as compound plate warpage.
Summary of the invention
The utility model purpose is to solve the distortion of existing in prior technology automobile making sheet metal component point postwelding solder joint, and direct welding is difficult to realize the technical problem of spot welding, the seamless spot welding device of automobile body-in-white that provides a kind of easy to operate, suitable multiple occasion to use on small space and particular jig.
The utility model is mainly solved by the following technical programs at the prior art problem, the seamless spot welding device of a kind of automobile body-in-white, comprise mash welder, in two electrodes of mash welder, one is stick electrode, another is the major diameter large contact surface electrode that has groove, and the major diameter large contact surface electrode of stick electrode and with groove is placed on the same side of weldment.Thereby need not exert pressure in the weldment both sides, and the adaptability of with groove major diameter large contact surface electrode, realized the monolateral seamless spot welding of car load.Major diameter large contact surface electrode makes the enough little solder joint that do not form of this electrode current density, realizes the single solder joint welding under the stick electrode.Its effect of groove on the major diameter large contact surface electrode, the one, the convex shape that adapts to weldment changes makes electrode that big effective contact-making surface be arranged as far as possible, and the 2nd, increase the heat radiation channel and avoid weldment overheating deforming below the major diameter large contact surface electrode.The stick electrode flexible operation is not limited by substantially the operating space.
As preferably, the contact-making surface of the major diameter large contact surface electrode of with groove is provided with two orthogonal grooves.These two vertical trench intersect center of formation than big groove at the contact-making surface center, change in order to adapt to the weldment convex bending, make this electrode and weldment that maximum contact-making surface be arranged as far as possible, and groove also has the ventilation and heat effect simultaneously.
As preferably, the contact-making surface center of the major diameter large contact surface electrode of with groove is provided with a circular groove and the rectangle groove by the center, it is the contact-making surface of another kind of form, the central circular groove also has the effect that adapts to the weldment bending change preferably, and groove also helps the electrode ventilation and heat.
As preferably, the contact-making surface diameter of stick electrode is determined according to the thickness of weldment.The contact-making surface of stick electrode is determined according to weldment thickness thin in two weldments, avoids electrode contact surface too small, causes excessive heating and wearing and tearing rapidly.
The beneficial effect that the utility model brings is: realize that on body in white weld nugget is seamless, improved presentation quality; The panel beating overlap joint zone that can carry out the small space that the direct welding machine can't weld and on particular jig, be difficult to realize spot welding; Owing to realized that spot welding is seamless, need not to carry out subsequent process processing such as panel beating reparation, use manpower and material resources sparingly, improved economic benefit.
Figure of description
Fig. 1 is a kind of schematic diagram of the present utility model;
Fig. 2 is a kind of front view that major diameter large contact surface electrode is provided with two mutual vertical trench in the utility model;
Fig. 3 is a kind of vertical view of major diameter large contact surface electrode in the utility model;
Fig. 4 is a kind of front view that major diameter large contact surface electrode is provided with a groove in center and a groove in the utility model.
Among the figure: 1 stick electrode, the 2nd, major diameter large contact surface electrode, the 3rd, weldment, the 4th, mash welder, the 5th, groove, the 6th, circular groove.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: as shown in Figure 1, the seamless spot welding device of a kind of automobile body-in-white, comprise mash welder 4, in two electrodes of mash welder 4, one is bar-shaped copper alloy electrode 1, another is the fluted major diameter large contact surface of a cylinder shape belt copper alloy electrode 2, and the major diameter large contact surface electrode 2 of stick electrode 1 and with groove places the same side of weldment 3.Wherein effective contact area (current density) of major diameter large contact surface electrode 2 is as the criterion not form solder joint.
During welding stick electrode 1 and major diameter large contact surface electrode 2 are placed on the same one side of weldment 3, distance between electrode 1 and the electrode 2 is decided on weldment, as long as can conveniently place electrode 2, again electrode 1 is touched the required solder joint of weldment place, between electrode 1 and electrode 2, form current loop, the high current density at electrode 1 place makes to form between the workpiece and dissolves core, lifting electrode 1 cuts off electric current and dissolves the core condensation and form point-like weld seam between the workpiece, owing to need not to exert pressure, so solder joint is smooth.
As shown in Figure 2, process cross one another two grooves on the contact-making surface of cylindrical major diameter large contact surface electrode 2, slot wedge has chamfering simultaneously, and the workpiece so that the adaptive zone convex curvature changes increases the effective contact area of this electrode as far as possible.
As shown in Figure 3, be the vertical view of cylindrical major diameter large contact surface electrode 2.
As shown in Figure 4, cylindrical major diameter large contact surface electrode 2 is processed with a circular groove 6 and a groove 5 on contact-making surface, be processed with chamfering at groove edge, also has weldment convex bending adaptability preferably.
Claims (4)
1. seamless spot welding device of automobile body-in-white, comprise mash welder, it is characterized in that: in two electrodes of described mash welder, one is stick electrode, another is the major diameter large contact surface electrode that has groove, and the major diameter large contact surface electrode of described stick electrode and with groove is placed on the same side of weldment.
2. according to the seamless spot welding device of the described automobile body-in-white of claim 1, it is characterized in that: the contact-making surface of the major diameter large contact surface electrode of described with groove is provided with two orthogonal grooves.
3. according to the seamless spot welding device of the described automobile body-in-white of claim 1, it is characterized in that: the contact-making surface center of the major diameter large contact surface electrode of described with groove is provided with a circular groove and the rectangle groove by the center.
4. according to the seamless spot welding device of the described automobile body-in-white of claim 1, it is characterized in that: the contact-making surface diameter of described stick electrode is determined according to the thickness of weldment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206843677U CN201900377U (en) | 2010-12-28 | 2010-12-28 | Trace-free spot welding device for white automobile body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206843677U CN201900377U (en) | 2010-12-28 | 2010-12-28 | Trace-free spot welding device for white automobile body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201900377U true CN201900377U (en) | 2011-07-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206843677U Expired - Fee Related CN201900377U (en) | 2010-12-28 | 2010-12-28 | Trace-free spot welding device for white automobile body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201900377U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2712695A1 (en) * | 2012-09-28 | 2014-04-02 | Contico W-tec Automatisierungstechnik GmbH | Welding electrode, in particular for aluminium welding |
| CN104043896A (en) * | 2013-03-13 | 2014-09-17 | 本田技研工业株式会社 | Method for single-sided resistance welding |
| CN104139244A (en) * | 2014-07-23 | 2014-11-12 | 嘉兴永发电子有限公司 | Single-face traceless welding method for stainless steel panels |
| CN105710520A (en) * | 2016-04-29 | 2016-06-29 | 天津福臻工业装备有限公司 | Single-face seamless welding device of automobile door |
| CN109570718A (en) * | 2018-12-06 | 2019-04-05 | 上海空间电源研究所 | A kind of combined electrode structure of solar cell for space use battle array conductor resistance welding |
| WO2020099359A1 (en) * | 2018-11-15 | 2020-05-22 | Robert Bosch Gmbh | Method for bonding a terminal of a battery cell to at least one cell connector, and battery module |
| CN112916992A (en) * | 2019-12-06 | 2021-06-08 | 中国科学院上海光学精密机械研究所 | Resistance spot welding electrode for welding high-strength steel and welding method thereof |
| WO2022048116A1 (en) * | 2020-09-02 | 2022-03-10 | 中车青岛四方机车车辆股份有限公司 | Magnetic assisted welding apparatus and welding method |
-
2010
- 2010-12-28 CN CN2010206843677U patent/CN201900377U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2712695A1 (en) * | 2012-09-28 | 2014-04-02 | Contico W-tec Automatisierungstechnik GmbH | Welding electrode, in particular for aluminium welding |
| CN104043896A (en) * | 2013-03-13 | 2014-09-17 | 本田技研工业株式会社 | Method for single-sided resistance welding |
| CN104043896B (en) * | 2013-03-13 | 2016-08-24 | 本田技研工业株式会社 | Method for one-sided resistance weldering |
| US9815136B2 (en) | 2013-03-13 | 2017-11-14 | Honda Motor Co., Ltd. | Method for single-sided resistance welding |
| CN104139244A (en) * | 2014-07-23 | 2014-11-12 | 嘉兴永发电子有限公司 | Single-face traceless welding method for stainless steel panels |
| CN105710520A (en) * | 2016-04-29 | 2016-06-29 | 天津福臻工业装备有限公司 | Single-face seamless welding device of automobile door |
| CN105710520B (en) * | 2016-04-29 | 2017-12-26 | 天津福臻工业装备有限公司 | The seamless welder of arrangements for automotive doors one side |
| WO2020099359A1 (en) * | 2018-11-15 | 2020-05-22 | Robert Bosch Gmbh | Method for bonding a terminal of a battery cell to at least one cell connector, and battery module |
| CN109570718A (en) * | 2018-12-06 | 2019-04-05 | 上海空间电源研究所 | A kind of combined electrode structure of solar cell for space use battle array conductor resistance welding |
| CN112916992A (en) * | 2019-12-06 | 2021-06-08 | 中国科学院上海光学精密机械研究所 | Resistance spot welding electrode for welding high-strength steel and welding method thereof |
| WO2022048116A1 (en) * | 2020-09-02 | 2022-03-10 | 中车青岛四方机车车辆股份有限公司 | Magnetic assisted welding apparatus and welding method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20151228 |
|
| EXPY | Termination of patent right or utility model |