CN201399659Y - Spot-welding electrode - Google Patents
Spot-welding electrode Download PDFInfo
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- CN201399659Y CN201399659Y CN2009203016241U CN200920301624U CN201399659Y CN 201399659 Y CN201399659 Y CN 201399659Y CN 2009203016241 U CN2009203016241 U CN 2009203016241U CN 200920301624 U CN200920301624 U CN 200920301624U CN 201399659 Y CN201399659 Y CN 201399659Y
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- spot
- semicylinders
- semi
- welding
- annular recess
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Abstract
The utility model relates to a spot-welding electrode, in particular to a welding electrode for an alkaline battery copper needle bottom cover or other small rod-shaped components. The spot-welding electrode comprises two freestanding semi-cylinders, axial semi-circular grooves are formed in the centers of plane parts of two semi-cylinders respectively, two plane parts of two semi-cylinders are opposite to form a cylinder, a round hole for accommodating a rod body of a working piece to be welded is formed by two semi-circular grooves, an outer wall of the cylinder consisting of the two semi-cylinders is distributed with a plurality of annular grooves, and a pre-tight elastic rubber ring is arranged in the annular groove. The spot-welding electrode can not generate serious scuffing to the surface of copper needle and etched damages to the surface from electric spark, can ensure ideal welding effect under the condition of an easy welding power apparatus and solve the problems of undesirable effect of welding the alkaline battery copper needle bottom cover welding electrode or other small rod-shaped components in the prior art and the like.
Description
Technical field
The utility model relates to a kind of spot-wedling electrode, particularly a kind of welding electrode that is used for alkaline battery copper pin bottom welding electrode or other small-sized rod-like element.
Technical background
Alkaline battery afflux copper pin need connect by spot-welding technology with the negative pole bottom, if having a negative impact for the quality of battery to copper wire surface generation serious damage and electric spark to the erosion wound on surface in the welding process.
Existing a kind of technology be to the copper pin send the electrode of electricity adopt two by helical spring relatively to two square strip shaped electric poles are applied elastic force pressure, bonding copper shank body by the semicircle groove of two square strip shaped electric poles heads send the copper pin, because this kind structure is complicated, and strip shaped electric poles must move in chute, like this if move and welding pressure by motion copper pin application point welding position, then between copper pin and the electrode owing to there is a relative motion, increased the contact resistance between the electrode and copper pin in discharge process, and constitute copper pin and gaps between electrodes electric discharge phenomena, can cause serious electric spark erosion to hinder phenomenon the copper wire surface; In addition, this technology type inserts process at the copper pin will have bigger power comparatively speaking, causes the copper wire surface to scratch easily.
Another technology of prior art is to constitute electrode by the elasticity corpusculum that thin slice bending forms, the elastic clip of elasticity corpusculum is to inserting wherein and the copper pin that is held transmission welding current, owing to be that line contact or even puts and contacts between this corpusculum and the copper pin, contact resistance between them is very big, to occur the not due welding effect between elasticity corpusculum and the copper pin inevitably, cause phenomenon is hindered in the electric spark erosion of copper wire surface.
Prior art another is by copper pin shoulder the copper pin to be transmitted welding current by the shell-like electrode again, experiment surface this kind technology type must have the very high-precision source of welding current could obtain good welding effect, equipment cost is higher.
A kind of technology that also has of prior art is in welding process the copper pin to be pressed against on the electrode, have bigger contact area and do not have the relative slip in the discharge welding process between copper pin and the electrode, it is more advanced technology, but also relies on the expensive source of welding current and high accuracy complicated mechanical system to ensure the quality of products.
Summary of the invention
The utility model purpose is to provide a kind of can the generation that the serious damage and the electric spark of copper wire surface are hindered the erosion on surface, can guarantee under easier source of welding current appointed condition to obtain the spot-wedling electrode of comparatively ideal welding effect, solve problems such as the welding effect to battery copper pin bottom or other small-sized rod-like element that prior art exists is undesirable.
Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs: it comprises two independently semicylinders, the planar portions center of two semicylinders is formed with axial semi-circular recesses respectively, the planar portions of two semicylinders is relative with planar portions and form a cylinder, the circular hole of the workpiece body of rod to be welded is held in two common formation one of semi-circular recesses, the cylinder outer wall that described two semicylinders constitute is furnished with some annular recess, is provided with the elastic caoutchouc circle of pretension in the described annular recess.During welding, to treat that the bit copper pin inserts in the circular hole at the utility model cylinder center, treat that the bit copper pin is bonded by the elastic force that two relative semicylinders rely on the elastic caoutchouc circle of pretension to provide, and constitutes the electrode for the treatment of the bit copper pin after drawing electrified wire on two independent semicylinders.Such electrode structure is simpler, the lead that is associated in above the electrode adopts soft flexible conducting material, because other structure of periphery is independent relatively for it, can be easily separately with treating that the bit copper pin moves, treat do not had relative slip between bit copper pin and the utility model electrode thereby formation floating structure, floating structure make, avoid the gap discharge phenomenon, thereby the electric spark erosion of avoiding treating the bit copper wire surface is hindered, and has guaranteed to obtain under easier source of welding current appointed condition comparatively ideal welding effect.
As preferably, described endless groove has three, arrange one in cylindrical shaft middle part, two are leaned on cylindrical endface position symmetric arrangement in addition, thereby make treat that originally welding electrode can obtain to bond comparatively uniformly after being inserted in the circular hole at cylinder center everywhere in, guarantee the utility model and treat that favorable conductive contacts between the bit copper pin.
As preferably, the common circular hole that forms of described two semi-circular recesses has a trumpet-shaped enlarging corresponding to the insertion end of the workpiece body of rod.Wherein, circular hole forms the insertion that a trumpet-shaped enlarging can be convenient to treat the bit copper pin in the insertion end of the workpiece body of rod, is beneficial to and enhances productivity.
As preferably, the cross section of described two semicylinders is slightly less than semicircle, when two semicylinders are formed cylinder, has a gap between relative two planar portions of two semicylinders.Gap width between two planar portions guarantees to overcome the elastic caoutchouc circle when shaft-like workpiece inserts cylindrical circular hole pretightning force makes two half-cylinders constitute a right cylinder structure when strutting two half-cylinders.
As preferably, described endless groove is trapezoidal, and the width of annular recess and the degree of depth guarantee that the elastic caoutchouc circle is trapped in fully in the groove and can give prominence to the cylinder outer cylinder.
As preferably, be respectively equipped with several elastic caoutchouc circles in the described annular recess.The internal diameter of elastic caoutchouc circle is much smaller than the groover rot diameter of annular recess, the size of the pretightning force of regulating each annular recess of the quantity by increasing and decreasing the rubber ring in each annular recess.
Therefore, the utlity model has the serious damage and the electric spark that can not produce the erosion on surface is hindered, can guarantee under easier source of welding current appointed condition, to obtain characteristics such as comparatively ideal welding effect the copper wire surface.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is a kind of plan structure schematic diagram of the present utility model;
Fig. 3 is first kind of user mode schematic diagram of the present utility model;
Fig. 4 is second kind of user mode schematic diagram of the present utility model;
Fig. 5 is the third user mode schematic diagram of the present utility model.
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 1: as depicted in figs. 1 and 2, spot-wedling electrode comprises two independently semicylinders 1, the planar portions center of two semicylinders 1 is formed with axial semi-circular recesses 2 respectively, the planar portions of two semicylinders 1 is relative with planar portions and form a cylinder, the circular hole 3 of the workpiece body of rod to be welded is held in two semi-circular recesses 2 common formation one, the cylinder outer wall of two semicylinder 1 formations is furnished with three annular recess 4, one of them annular recess is in cylindrical shaft middle part, two grooves are by cylindrical endface position symmetric arrangement in addition, be provided with the elastic caoutchouc circle 5 of pretension in the annular recess 4, annular recess 4 is trapezoidal, and the width of annular recess 4 and the degree of depth guarantee that elastic caoutchouc circle 5 is trapped in fully in the groove and can give prominence to the cylinder outer cylinder.The circular holes 3 of two semi-circular recesses 2 common formation have a trumpet-shaped enlarging 6 corresponding to the insertion end of the workpiece body of rod.The cross section of two semicylinders 1 is slightly less than semicircle, when two semicylinders 1 are formed cylinder, having between relative two planar portions of two semicylinders when gap width between 7, two planar portions in a gap guarantees to overcome the elastic caoutchouc circle when shaft-like workpiece inserts cylindrical circular hole pretightning force struts two half-cylinders makes two half-cylinders constitute a right cylinder structure.
As shown in Figure 3, in the middle of the insulation die holder 8 cavity 10 that holds the utility model electrode 9 is arranged, electrode 9 is on push rod 11, after workpiece copper pin 12 is inserted into electrode 9, negative pole bottom 13 is placed on bottom seat 14 the insides as electrode, upper holder block is about to bottom 13 for 15 times and is pressed in the bottom seat 14 then, the up promotion the utility model electrode of push rod 11 9 is up with copper pin 3 then, having arrived certain altitude contacts by spot welding with bottom 13, upper holder block 15 was removed after welding was finished, being about to the some weldment of postwelding on push rod 11 continues pushes away bottom seat 14, is taken away by other clamping device subsequently.The characteristics of this embodiment are that electrode 9 moves with the copper pin is unsteady in welding process, do not slide relatively, thereby avoid gap spark discharge phenomenon.
Embodiment 2: as depicted in figs. 1 and 2, spot-wedling electrode comprises two independently semicylinders 1, the planar portions center of two semicylinders 1 is formed with axial semi-circular recesses 2 respectively, the planar portions of two semicylinders 1 is relative with planar portions and form a cylinder, the circular hole 3 of the workpiece body of rod to be welded is held in two semi-circular recesses 2 common formation one, the cylinder outer wall of two semicylinder 1 formations is furnished with three annular recess 4, one of them annular recess is in cylindrical shaft middle part, two grooves are by cylindrical endface position symmetric arrangement in addition, be provided with the elastic caoutchouc circle 5 of pretension in the annular recess 4, annular recess 4 is trapezoidal, and the width of annular recess 4 and the degree of depth guarantee that elastic caoutchouc circle 5 is trapped in fully in the groove and can give prominence to the cylinder outer cylinder.The circular holes 3 of two semi-circular recesses 2 common formation have a trumpet-shaped enlarging 6 corresponding to the insertion end of the workpiece body of rod.The cross section of two semicylinders 1 is slightly less than semicircle, when two semicylinders 1 are formed cylinder, having between relative two planar portions of two semicylinders when gap width between 7, two planar portions in a gap guarantees to overcome the elastic caoutchouc circle when shaft-like workpiece inserts cylindrical circular hole pretightning force struts two half-cylinders makes two half-cylinders constitute a right cylinder structure.
As shown in Figure 4, in the middle of the insulation die holder 8 cavity that holds the utility model electrode 9 is arranged, after workpiece copper pin 12 is inserted into group the utility model electrode 9, negative pole bottom 13 is placed on bottom seat 14 the insides as electrode, upper holder block is about to bottom 13 for 15 times and is pressed in the bottom seat 14 then, upper holder block 15 continues descending promotion bottom 13, and mobile 16 is descending together, arrived to a certain degree bottom 13 with 12 contacts of copper pin under the effect of welding current both by spot welding, upper holder block 15 was removed after welding was finished, manually promoting to be about in the mobile 16 the point weldment of postwelding pushes away bottom seat 14, removed subsequently.The characteristics of this embodiment be electrode 9 in welding process all the time with the copper pin, relatively do not slide, thereby avoid gap spark discharge phenomenon.
Embodiment 3: as depicted in figs. 1 and 2, spot-wedling electrode comprises two independently semicylinders 1, the planar portions center of two semicylinders 1 is formed with axial semi-circular recesses 2 respectively, the planar portions of two semicylinders 1 is relative with planar portions and form a cylinder, the circular hole 3 of the workpiece body of rod to be welded is held in two semi-circular recesses 2 common formation one, the cylinder outer wall of two semicylinder 1 formations is furnished with three annular recess 4, one of them annular recess is in cylindrical shaft middle part, two grooves are by cylindrical endface position symmetric arrangement in addition, be provided with the elastic caoutchouc circle 5 of pretension in the annular recess 4, annular recess 4 is trapezoidal, and the width of annular recess 4 and the degree of depth guarantee that elastic caoutchouc circle 5 is trapped in fully in the groove and can give prominence to the cylinder outer cylinder.The circular holes 3 of two semi-circular recesses 2 common formation have a trumpet-shaped enlarging 6 corresponding to the insertion end of the workpiece body of rod.The cross section of two semicylinders 1 is slightly less than semicircle, when two semicylinders 1 are formed cylinder, having between relative two planar portions of two semicylinders when gap width between 7, two planar portions in a gap guarantees to overcome the elastic caoutchouc circle when shaft-like workpiece inserts cylindrical circular hole pretightning force struts two half-cylinders makes two half-cylinders constitute a right cylinder structure.
As shown in Figure 5, in the middle of the insulation die sleeve 17 cavity 10 that holds the utility model electrode 9 is arranged, after workpiece copper pin 12 is inserted into group electrode 9, negative pole bottom 13 is placed on bottom seat 14 the insides as electrode, upper holder block is about to bottom 13 for 15 times and is pressed in the bottom seat 14 then, upper holder block 15 continues descending promotion bottom 13, and mobile 16 is descending together, having arrived to a certain degree, bottom 13 shows both by spot welding with 12 contacts of copper pin in the effect of welding current, upper holder block 1 was removed after welding was finished, manually promoting to be about in the mobile 16 the point weldment of postwelding pushes away bottom seat 13, removed subsequently.The characteristics of this embodiment be electrode 9 in welding process all the time with the copper pin, relatively do not slide, thereby avoid gap spark discharge phenomenon.
Claims (6)
1. spot-wedling electrode, it is characterized in that: comprise two independently semicylinders, the planar portions center of two semicylinders is formed with axial semi-circular recesses respectively, the planar portions of two semicylinders is relative with planar portions and form a cylinder, the circular hole of the workpiece body of rod to be welded is held in two common formation one of semi-circular recesses, the cylinder outer wall that described two semicylinders constitute is furnished with some annular recess, is provided with the elastic caoutchouc circle of pretension in the described annular recess.
2. spot-wedling electrode according to claim 1 is characterized in that described annular recess has three, arranges one in cylindrical shaft middle part, and two are leaned on cylindrical endface position symmetric arrangement in addition.
3. spot-wedling electrode according to claim 1 and 2 is characterized in that the common circular hole that forms of described two semi-circular recesses has a trumpet-shaped enlarging corresponding to the insertion end of the workpiece body of rod.
4. spot-wedling electrode according to claim 1 and 2 is characterized in that the cross section of described two semicylinders is slightly less than semicircle, when two semicylinders are formed cylinder, has a gap between relative two planar portions of two semicylinders.
5. spot-wedling electrode according to claim 1 and 2 is characterized in that described endless groove is trapezoidal, and the width of annular recess and the degree of depth guarantee that the elastic caoutchouc circle is trapped in fully in the groove and can give prominence to the cylinder outer cylinder.
6. spot-wedling electrode according to claim 1 and 2 is characterized in that being respectively equipped with in the described annular recess several elastic caoutchouc circles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203016241U CN201399659Y (en) | 2009-03-26 | 2009-03-26 | Spot-welding electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203016241U CN201399659Y (en) | 2009-03-26 | 2009-03-26 | Spot-welding electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201399659Y true CN201399659Y (en) | 2010-02-10 |
Family
ID=41659454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203016241U Expired - Fee Related CN201399659Y (en) | 2009-03-26 | 2009-03-26 | Spot-welding electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201399659Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972887A (en) * | 2010-09-26 | 2011-02-16 | 上海三星广电电子器件有限公司 | Spot welding method used for two electrodes and nickel sheet of battery cell |
| CN103659100A (en) * | 2012-09-18 | 2014-03-26 | 上海强精金属制品有限公司 | Welding fixture capable of preventing water-heater chamber assembly from sparking |
| CN112676688A (en) * | 2021-03-15 | 2021-04-20 | 中汽研（天津）汽车工程研究院有限公司 | Dissimilar metal resistance spot welding method |
-
2009
- 2009-03-26 CN CN2009203016241U patent/CN201399659Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972887A (en) * | 2010-09-26 | 2011-02-16 | 上海三星广电电子器件有限公司 | Spot welding method used for two electrodes and nickel sheet of battery cell |
| CN103659100A (en) * | 2012-09-18 | 2014-03-26 | 上海强精金属制品有限公司 | Welding fixture capable of preventing water-heater chamber assembly from sparking |
| CN103659100B (en) * | 2012-09-18 | 2016-02-24 | 上海强精金属制品有限公司 | A kind of weld jig preventing the body assembly sparking of water heater room |
| CN112676688A (en) * | 2021-03-15 | 2021-04-20 | 中汽研（天津）汽车工程研究院有限公司 | Dissimilar metal resistance spot 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100210 Termination date: 20180326 |