CN213827620U - Welding needle applied to resistance welding - Google Patents
Welding needle applied to resistance welding Download PDFInfo
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- CN213827620U CN213827620U CN202022194918.8U CN202022194918U CN213827620U CN 213827620 U CN213827620 U CN 213827620U CN 202022194918 U CN202022194918 U CN 202022194918U CN 213827620 U CN213827620 U CN 213827620U
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Abstract
The utility model provides a be applied to resistance welding's welding pin, including the welding pin body, welding pin body one end is installed on resistance welding welds, and other end processing forms the welding needle head. The welding needle head is formed by uniformly cutting the periphery of the end part of the welding needle body for a plurality of times up and down, the welding needle head comprises n square first welding inclined planes, and the n first welding inclined planes are annularly arranged by taking the central line of the welding needle body as the center. The end part of the welding needle head forms a second welding surface, and the shape of the second welding surface is the same as that of the section of the welding needle head. Through designing the bonding tool to the welding pin, can make the area of contact between welding pin head and the soldering tin material suitable, ensure melting of soldering tin material, also can reduce or even eliminate the risk of wearing the work piece in the operation process, can increase welding pulling force and improve the welding yield.
Description
Technical Field
The utility model belongs to the automobile parts field relates to resistance welding machine equipment and welding technique, specifically is a be applied to resistance welding's welding needle.
Background
Resistance welding (resistance welding) is a method in which a workpiece is assembled, pressure is applied to the workpiece by an electrode, and after a welding pin contacts the workpiece, the workpiece/solder is heated to a molten or plastic state by resistance heat generated by an electric current at a contact surface with the workpiece/solder and an adjacent region, thereby forming a metal bond. The soldering tin is an important industrial raw material for welding electronic components, is a metal solder with a lower melting point, and is used in the following processes: the solder is melted by resistance welding and then one workpiece is welded to the other.
At present, a welding head of a resistance welding needle is mostly a cylinder or a cone, the contact area between the welding needle of the cylinder and soldering tin is too large, the temperature is insufficient, and the melting of the soldering tin slowly influences the welding efficiency; the welding needle and the soldering tin area of contact undersize of cone, during the welding with bonding tool contact segment or apart from near soldering tin easily by the melting, with the bonding tool apart from the part of being slightly far away easily by the melting, can appear soldering tin heating inhomogeneous problem this moment, simultaneously, bonding tool contact segment or apart from near soldering tin by the easy and work piece contact of welding tool after the melting, the risk of welding the work piece and wearing probably appears, influence the welding efficiency and the quality of work piece.
Therefore, there is a need for an improvement of the existing welding pin for resistance welding.
SUMMERY OF THE UTILITY MODEL
Generally, when a traditional cylindrical welding needle is adopted, on one hand, the operation is inconvenient, on the other hand, the contact area of the welding needle head is large, and the insufficient temperature seriously influences the welding efficiency and the welding quality of a workpiece; when adopting traditional conical welding needle, because the area of conical welding needle tip is little, its area of contact with the soldering tin material is little for the soldering tin material melts inhomogeneously, and appears the risk of welding the work piece through easily. In order to solve the problem, the utility model provides a novel be applied to welding pin that resistance welded designs through the bonding tool to welding pin, can make the area of contact between welding needle head and the soldering tin material suitable, ensures melting of soldering tin material, also can reduce or even eliminate the risk of welding the work piece in the operation process and wearing, can increase welding pulling force and improve the welding yield.
The technical scheme for realizing the purpose of the utility model is as follows: the utility model provides a be applied to resistance welding's welding needle, includes the welding needle body, and welding needle body one end is installed on resistance welding machine, and the other end processing forms the welding needle head. The welding needle head is formed by uniformly cutting the periphery of the end part of the welding needle body for a plurality of times up and down, the welding needle head comprises n square first welding inclined planes, and the n first welding inclined planes are annularly arranged by taking the central line of the welding needle body as the center.
The end part of the welding needle head forms a second welding surface, and the shape of the second welding surface is the same as that of the section of the welding needle head.
In a preferred embodiment of the present invention, the cutting is performed once, so that the number n of the first welding slopes is 1, and the ratio between the length a of the boundary line at the junction of the first welding slopes and the second welding slopes and the diameter b of the welding pin body is a: b is 3: 10-1: 1.
through carrying out design optimization to the welding needle head of welding needle, form n square first welding inclined plane through carrying out the cutting many times at the periphery of this tip of welding needle, simultaneously, the tip of welding the needle head forms the second welding face. In the process of carrying out tin-free welding operation by adopting resistance welding, any one first welding inclined plane or second welding surface can be arbitrarily selected to be adopted for operation according to the size and welding position of a workpiece and the operation action of an operator, and the method has the characteristics of convenience in operation, wide application range, uniform soldering tin melting and high welding quality.
In a preferred embodiment of the present invention, the cutting is performed 2 times, so that the number n of the first welding inclined planes is 2, and the 2 first welding inclined planes are mirror-symmetrical along the center line of the welding pin body.
In a preferred embodiment of the present invention, the cutting is performed at least 2 times, so that the number n of the first welding slopes is greater than or equal to 2; in the same horizontal plane, the distances between the at least 2 first welding inclined planes and the central line of the welding pin body are the same.
Generally speaking when adopting soldering tin material to the work piece welding, because operating personnel's operation habit is different, the welding pin body all has certain inclination usually, consequently the utility model discloses be 10 ~ 60 with the inclination design on first welding inclined plane, in the actual operation in-process, can select the welding pin that has the first welding inclined plane of suitable inclination according to operating personnel's individual custom and the type of work piece.
Further, after multiple times of verification, when the inclination angle of the first welding inclined plane is 45 °, the first welding inclined plane can be suitable for most operators and is suitable for welding of most types of workpieces.
As an improvement to the second welding surface, the second welding surface is a welding plane or a second welding slope.
Further, the inclination angle of the second welding inclined plane is 30-60 degrees.
Compared with the prior art, the beneficial effects of the utility model are that: through carrying out design optimization to the welding needle head of welding needle, form n square first welding inclined plane through carrying out the cutting many times at the periphery of this tip of welding needle, simultaneously, the tip of welding the needle head forms the second welding face. In the process of carrying out tin-free welding operation by adopting resistance welding, any one first welding inclined plane or second welding surface can be arbitrarily selected to be adopted for operation according to the size and welding position of a workpiece and the operation action of an operator, and the method has the characteristics of convenience in operation, wide application range, uniform soldering tin melting and high welding quality. Through verifying many times, the utility model provides a welding pin, the welding quality of work piece that has improved that can be abundant improves the welding yield rate to improve the welding pulling force of work piece from being greater than or equal to 80N to being greater than or equal to 120N.
Drawings
In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings used in the description of the embodiment will be briefly introduced below. It should be apparent that the drawings in the following description are only for the purpose of illustrating the embodiments of the present invention or the technical solutions in the prior art more clearly, and that other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a front view of a welding pin for resistance welding of the present invention;
FIG. 2 is a perspective view of a welding pin for resistance welding according to the present invention;
fig. 3 is a schematic view of a welding pin applied to resistance welding in embodiment 3 of the present invention.
Detailed Description
The invention will be further described with reference to specific embodiments, the advantages and features of the invention will become more apparent as the description proceeds. These examples are merely illustrative and do not limit the scope of the invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications are intended to be included within the scope of the invention.
In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
The present embodiment provides a welding pin for resistance welding, please refer to fig. 1, in the present embodiment, the welding pin includes a welding pin body 1, one end of the welding pin body 1 is installed on a resistance welding machine, and the other end is processed to form a welding pin head 2.
As shown in fig. 1 and 2, the welding pin head 2 is formed by uniformly cutting the periphery of the end portion of the welding pin body 1 up and down for several times, the welding pin head 2 includes n square first welding slopes 3, that is, the first welding slopes are rectangular or square, and generally mainly rectangular, and the wide sides of the first welding slopes 3 are respectively formed by the upper end boundary line of the welding pin body 1 and the welding pin head 2 and the lower end boundary line of the welding pin head 2.
Meanwhile, the n first welding inclined planes 3 are annularly arranged by taking the central line of the welding pin body 1 as the center, wherein the n first welding inclined planes 3 can be the same in size or different in size, and can be uniformly annularly arranged by taking the central line of the welding pin body 1 as the center or non-uniformly arranged.
As shown in fig. 1 and 2, the end of the welding pin head 2 forms a second welding surface 4, and the second welding surface 4 has the same shape as the section of the welding pin head 2.
Through carrying out design optimization to the welding needle head of welding needle, form n square first welding inclined plane 3 through carrying out the cutting many times at the periphery of welding needle body 1 tip, simultaneously, the tip of welding needle head 2 forms second face of weld 4. In the process of carrying out tin-free welding operation by adopting resistance welding, any one of the first welding inclined plane 3 or the second welding surface 4 can be arbitrarily selected to be adopted for operation according to the size and the welding position of a workpiece and the operation action of an operator, and the method has the characteristics of convenience in operation, wide application range, uniform melting of soldering tin and high welding quality.
The welding pin of the present invention will be described below with reference to specific examples.
Example 1:
in the present embodiment, the welding tip 2 of the welding pin has 1 first welding slope 3 (i.e., n is 1) which is formed by cutting and cutting uniformly up and down the outer periphery of the end of the welding pin body 1 at one time.
When cutting on the periphery of the end of the welding needle body 1, in order to avoid excessive or too little cutting, the width of the first welding inclined plane 3 formed after cutting is too small, so that the melting efficiency of a soldering material is influenced, and even the risk that the welding is welded through can be caused, therefore, the broadside length of the first welding inclined plane 3 is optimized in a test, the broadside length of the first welding inclined plane 3 (the boundary line length at the joint of the first welding inclined plane 3 and the second welding surface 4) is a, the diameter of the welding needle body 1 is b, and the proportion between a and b is a: b is 3: 10-1: 1, and after a lot of verification, when the ratio of a to b is 3: 10-1: within 1 range, the welding efficiency, the melting of the soldering material and the welding quality can all achieve the best effect.
Example 2:
in the present embodiment, the welding tip 2 of the welding pin has 2 first welding slopes 3 (i.e., n ═ 2) which are formed by cutting and cutting twice uniformly up and down the outer periphery of the end of the welding pin body 1.
As shown in fig. 1 and 2, in a preferred embodiment of the present invention, 2 first welding slopes 3 are mirror-symmetrical along the center line of the welding pin body 1, and are formed by symmetrically cutting the outer periphery of the end of the welding pin body 1 (i.e., the distance between the 2 first welding slopes and the center line of the welding pin body is the same). It should be noted that, the 2 first welding inclined planes 3 may also be formed by performing asymmetric cutting on the outer periphery of the end of the welding pin body 1, and the sizes of the 2 first welding inclined planes 3 may be the same or different; and the inclined angles can be the same or different.
Example 3:
in the present embodiment, the welding tip 2 of the welding pin has more than 2 first welding slopes 3 (i.e., n > 2) which are formed by uniformly cutting and cutting the outer periphery of the end of the welding pin body 1 up and down 3 times or more, and the distances between the more than 2 first welding slopes 3 and the center line of the welding pin body 1 are the same in the same horizontal plane.
As shown in fig. 3, it is a schematic view of a welding pin having 5 first welding slopes 3 formed by 5 times of cutting on the outer peripheral surface of the end of the welding pin body 1.
In the above embodiments 1 to 3, generally, when a solder material is used to weld a workpiece, the inclination angle of the first inclined welding surface 3 is designed to be 10 to 60 ° because the needle body 1 generally has a certain inclination angle depending on the operation habit of the operator, and therefore, the needle having the first inclined welding surface 3 with an appropriate inclination angle can be selected according to the individual habit of the operator and the type of the workpiece during the actual operation.
Further, after multiple times of verification, when the inclination angle of the first welding inclined plane is 45 °, the first welding inclined plane can be suitable for most operators and is suitable for welding of most types of workpieces.
In the above embodiments 1 to 3, the second welding face 4 may be a welding plane or a second welding slope. When the second welding face 4 is a second welding bevel. The inclined angle of the first welding inclined plane 3 is the same as the inclined angle of the second welding inclined plane, the influence on the use of the first welding inclined plane 3 caused by the overlarge inclined angle of the second welding inclined plane is avoided, and the inclined angle of the second welding inclined plane is 30-60 degrees.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
In addition, although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such descriptions are merely for clarity reasons, and those skilled in the art should make the description as a whole, and the embodiments in each embodiment may be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims (8)
1. The utility model provides a be applied to resistance welding's welding needle, includes the welding needle body, welding needle body one end is installed on resistance welding machine, and the other end processing forms and welds syringe needle, its characterized in that: the welding needle head is formed by uniformly cutting the periphery of the end part of the welding needle body for a plurality of times up and down, the welding needle head comprises n square first welding inclined planes, and the n first welding inclined planes are annularly arranged by taking the central line of the welding needle body as the center;
and a second welding surface is formed at the end part of the welding needle head, and the shape of the second welding surface is the same as that of the section of the welding needle head.
2. The welding pin of claim 1, wherein: cutting once, so that the number n of the first welding inclined planes is 1, and the ratio of the length a of the wide side of the first welding inclined planes to the diameter b of the welding pin body is a: b is 3: 10-1: 1.
3. the welding pin of claim 1, wherein: and cutting for 2 times to enable the number n of the first welding inclined planes to be 2, wherein the 2 first welding inclined planes are in mirror symmetry along the central line of the welding pin body.
4. The welding pin of claim 1, wherein: cutting for at least 2 times to ensure that the number n of the first welding inclined planes is more than or equal to 2;
in the same horizontal plane, the distances between at least 2 first welding inclined planes and the central line of the welding pin body are the same.
5. A welding pin according to any one of claims 2 to 4, characterized in that: the inclination angle of the first welding inclined plane is 10-60 degrees.
6. The welding pin of claim 5, wherein: the inclination angle of the first welding inclined plane is 45 degrees.
7. A welding pin according to any one of claims 2 to 4, characterized in that: the second welding surface is a welding plane or a second welding inclined plane.
8. The welding pin of claim 7, wherein: the inclination angle of the second welding inclined plane is 30-60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022194918.8U CN213827620U (en) | 2020-09-29 | 2020-09-29 | Welding needle applied to resistance welding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022194918.8U CN213827620U (en) | 2020-09-29 | 2020-09-29 | Welding needle applied to resistance welding |
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| CN213827620U true CN213827620U (en) | 2021-07-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114603282A (en) * | 2022-03-28 | 2022-06-10 | 远景动力技术(江苏)有限公司 | Welding device, adapter of cylindrical battery and shell welding method |
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2020
- 2020-09-29 CN CN202022194918.8U patent/CN213827620U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114603282A (en) * | 2022-03-28 | 2022-06-10 | 远景动力技术(江苏)有限公司 | Welding device, adapter of cylindrical battery and shell welding method |
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