CN213888628U - Traceless electrode cap and welding gun with same - Google Patents

Abstract

The utility model discloses a no trace electrode cap and welder that has it. This no trace electrode cap includes: a ball head having a spherical portion configured as at least a portion of a sphere and a connecting portion extending outwardly from the spherical portion; the electrode head is internally provided with an inner spherical surface matched with the spherical part, and is provided with a working surface which is a plane or a curved surface; the clamping ring is used for connecting the ball head with the electrode tip, and the clamping ring is detachably connected with the electrode tip. According to the utility model discloses no trace electrode cap, the electrode tip can rotate for the bulb, and the working face and the panel beating laminating of electrode tip to reduce the indentation and the deformation of panel beating outward appearance welding point department when the welding, realize no trace welding, thereby be favorable to promoting the surface quality and the aesthetic property of panel beating outward appearance solder joint, in addition, no trace electrode cap influences lessly to welding operation, can realize no trace welding under the condition that does not influence production efficiency.

Description

Traceless electrode cap and welding gun with same

Technical Field

The utility model relates to a welding field particularly, relates to a no trace electrode cap and welder that has it.

Background

On the automobile body outward appearance face of passenger car, the panel beating can produce a lot of visual outward appearance solder joints when the welding, along with the user is more and more high to the requirement of whole car outward appearance, need adopt no trace welding process to reduce the influence of solder joint to the outward appearance. At present, in an inner traceless welding process, a copper base plate is usually additionally arranged at an appearance welding spot of a metal plate during welding, however, an appearance welding spot area is often a curved surface, the copper base plate needs to be designed into a shape following state, the processing and installation difficulty is large, meanwhile, the influence of a vehicle body structure is caused, the space of the copper base plate arrangement area is small, the welding accessibility is influenced, if the copper base plate cannot be arranged, a clamp needs to be additionally designed aiming at the appearance welding spot, the production cost is increased, and the production efficiency is reduced. In addition, the copper base plate is easy to ablate and adhere on the surface of the copper base plate after being used for a long time, and needs to be periodically polished, and the appearance surface of the metal plate is easy to scratch when the copper base plate is taken and placed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. Therefore, the utility model provides a no trace electrode cap can realize no trace welding under the condition that does not influence production efficiency.

The utility model also provides a welder of having above-mentioned no trace electrode cap.

According to the utility model discloses no trace electrode cap includes: a ball head having a spherical portion configured as at least a portion of a sphere and a connecting portion extending outwardly from the spherical portion; the electrode head is internally provided with an inner spherical surface matched with the spherical part, the electrode head is provided with a working surface, and the working surface is a plane or a curved surface; and the pressing ring is used for connecting the ball head with the electrode tip, and the pressing ring is detachably connected with the electrode tip.

According to the utility model discloses no trace electrode cap, the electrode tip can rotate for the bulb, and the working face and the panel beating laminating of electrode tip to reduce the indentation and the deformation of panel beating outward appearance welding point department when the welding, realize no trace welding, thereby be favorable to promoting the surface quality and the aesthetic property of panel beating outward appearance solder joint, in addition, no trace electrode cap influences lessly to welding operation, can realize no trace welding under the condition that does not influence production efficiency.

According to some embodiments of the utility model, the electrode tip has bulb installation end, the clamping ring is suitable for installing bulb installation end, the clamping ring will spherical portion restriction is in inside the electrode tip, connecting portion are suitable for the warp the clamping ring stretches out the electrode tip.

Further, bulb installation department is provided with the clamping ring mounting groove, the cell wall of clamping ring mounting groove has the internal thread, the clamping ring have with the external screw thread of internal thread spiro union.

Further, the thickness of clamping ring is greater than the degree of depth of clamping ring mounting groove.

According to some embodiments of the invention, the clamping ring comprises: be suitable for with the spacing section of bulb of spherical portion laminating and be suitable for the confession the bulb that connecting portion wore to establish dodges the section, the diameter that the section was dodged to the bulb is less than the external diameter of spherical portion just is greater than the external diameter of connecting portion.

According to some embodiments of the invention, the inner spherical surface and the spherical portion are a clearance fit.

According to some embodiments of the invention, the head diameter of the electrode head is 1.5-2 times the diameter of the spherical portion.

According to some embodiments of the utility model, the connecting portion have the electrode arm mounting hole, just the electrode arm mounting hole is the bell mouth, the path end orientation of bell mouth the spherical portion, the big path end of bell mouth is kept away from the spherical portion.

According to the utility model discloses welder of another aspect embodiment, relative first electrode arm and the second electrode arm that sets up, first electrode arm with be provided with the electrode cap on the second electrode arm, first electrode arm with the electrode cap on at least one in the second electrode arm is foretell no trace electrode cap.

The welding gun has the same advantages as the traceless electrode cap compared with the prior art, and the detailed description is omitted.

According to some embodiments of the utility model, no trace electrode cap sets up on the corresponding electrode arm that the panel beating has outward appearance solder joint one side.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a front view of a traceless electrode cap;

FIG. 2 is a cross-sectional view of a traceless electrode cap;

FIG. 3 is a schematic illustration of the mating of a traceless electrode cap and an electrode arm;

fig. 4 is a schematic view of a welding gun welding sheet metal.

Reference numerals:

the welding gun comprises a traceless electrode cap 10, a ball head 1, a spherical part 11, a connecting part 12, an electrode arm mounting hole 121, an electrode tip 2, a working surface 21, a mounting end 22, a pressing ring 3, a ball head limiting section 31, a ball head avoiding section 32, a welding gun 100, a first electrode arm 20, a second electrode arm 30 and a metal plate 200.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and 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 therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The traceless electrode cap and the welding gun with the traceless electrode cap according to the embodiment of the invention are described in detail in the following with reference to the attached drawings.

Referring to fig. 1 and 2, a traceless electrode cap 10 includes: bulb 1, electrode tip 2, clamping ring 3.

Bulb 1 has spherical portion 11 and connecting portion 12, spherical portion 11 constructs for spheroidal at least partly, connecting portion 12 outwards extends from spherical portion 11, have the interior sphere of matcing with spherical portion 11 in the electrode tip 2, after with spherical portion 11 matches in order to realize, electrode tip 2 can rotate for spherical portion 11, electrode tip 2 has working face 21, and working face 21 is plane or curved surface, when the face of weld of panel beating is the plane, choose working face 21 for planar electrode tip 2, when the face of weld of panel beating is the curved surface, choose working face 21 for the electrode tip 2 with the curved surface that the panel beating is along with shape, and then realize that working face 21 and panel beating are laminated when the welding through the rotation of electrode tip 2, in order to promote welding quality. Clamping ring 3 is used for being connected bulb 1 with electrode tip 2, and clamping ring 3 is connected with electrode tip 2 detachably to be favorable to the maintenance and the change of electrode tip 2.

According to the utility model discloses no trace electrode cap 10, electrode tip 2 can rotate for bulb 1, and electrode tip 2's working face 21 and panel beating laminating to reduce the indentation and the deformation of panel beating outward appearance welding point department when the welding, realize no trace welding, thereby be favorable to promoting panel beating outward appearance solder joint's surface quality and aesthetic property, in addition, no trace electrode cap 10 influences lessly to welding operation, can realize no trace welding under the condition that does not influence production efficiency.

Referring to fig. 1 and 2, the electrode tip 2 has a ball-end mounting end 22, the pressing ring 3 is adapted to be mounted at the ball-end mounting end 22, the pressing ring 3 restricts the spherical portion 11 inside the electrode tip 2 to prevent the electrode tip 2 from falling off, the joint portion 12 is adapted to protrude out of the electrode tip 2 through the pressing ring 3, and the joint portion 12 can restrict the rotation angle of the pressing ring 3.

Referring to fig. 2, bulb installation end 22 department is provided with the clamping ring mounting groove, and the cell wall of clamping ring mounting groove has the internal thread, and clamping ring 3 has the external screw thread with the internal thread spiro union to realize clamping ring 3 and electrode tip 2's spiro union, thereby be favorable to electrode tip 2 to dismantle fast and assemble, and then be favorable to installation, maintenance and the change of electrode tip 2.

Referring to fig. 2, the thickness b of the pressing ring 3 is greater than the depth of the pressing ring mounting groove a, that is, after the pressing ring 3 and the electrode taps 2 are assembled, the pressing ring 3 remains partially outside the pressing ring mounting groove to facilitate the operation when the electrode taps 2 are mounted and dismounted. Preferably, after the pressure ring 3 and the electrode tip 2 are assembled, the portion of the pressure ring 3 still located outside the pressure ring mounting groove is provided with an outer hexagonal structure, so that the pressure ring 3 can be fixed by a wrench when the electrode tip 2 is mounted and dismounted.

Referring to fig. 2, the pressure ring 3 includes: be suitable for with the spacing section 31 of bulb of spherical portion 11 laminating and be suitable for the bulb that supplies connecting portion 12 to wear to establish dodges section 32, the spacing section 31 of bulb and the laminating of spherical portion 11 can prevent that electrode tip 2 from taking place to rock when rotating, the diameter of bulb dodge section 32 is less than the external diameter of spherical portion 11 and is greater than the external diameter of connecting portion 12 to prevent that electrode tip 2 from dropping.

Preferably, the spherical portion 11 is a structure in which the spherical loss is smaller than a half sphere, the connecting portion 12 extends outwards from the spherical loss, and the diameter of the ball head avoiding section 32 is smaller than the outer diameter of the spherical portion 11 and larger than the outer diameter of the connecting portion 12, so that the pressing ring 3 is sleeved on one side of the spherical portion 11 close to the connecting portion 12, so that after the pressing ring 3 is fixed to the ball head mounting end 22, the pressing ring 3 limits the spherical portion 11 inside the electrode tip 2, and the electrode tip 2 is prevented from falling off.

In some embodiments of the utility model, interior sphere is clearance fit with spherical portion 11 to realize that electrode tip 2 can rotate for bulb 1 multi-angle, and then make the working face 21 and the panel beating laminating of electrode tip 2 when the welding.

In some embodiments of the present invention, the head diameter of the electrode tip 2 is 1.5-2 times the diameter of the spherical portion 11, for example, the head diameter of the electrode tip 2 is 2 times the diameter of the spherical portion 11, so as to increase the area of the working surface 21 of the electrode tip 2, so as to reduce the indentation and deformation of the outer surface of the metal plate during welding, and realize seamless welding.

Referring to fig. 2, the connecting portion 12 has an electrode arm mounting hole 121, and the electrode arm mounting hole 121 is a tapered hole, a small diameter end of the tapered hole faces the spherical portion 11, a large diameter end of the tapered hole is far away from the spherical portion 11, and the tapered hole is adaptable to an electrode arm of an existing welding gun, thereby facilitating improvement of the versatility of the traceless electrode cap 10.

Referring to fig. 1-4, a welding gun 100 according to another aspect of the present invention includes: the metal plate 200 comprises a first electrode arm 20 and a second electrode arm 30 which are arranged oppositely, electrode caps are arranged on the first electrode arm 20 and the second electrode arm 30, the electrode cap on at least one of the first electrode arm 20 and the second electrode arm 30 is the traceless electrode cap 10 of the embodiment, and optionally, the traceless electrode cap 10 is arranged on the corresponding electrode arm on the side, with the appearance welding point, of the metal plate 200.

Referring to the embodiment shown in fig. 3 and 4, the sheet metal 200 on the right side in fig. 4 has an appearance welding spot, the electrode cap on the second electrode arm 30 on the corresponding side is the seamless electrode cap 10, the sheet metal 200 on the left side does not have the appearance welding spot, the electrode cap on the first electrode arm 20 on the corresponding side is the common electrode cap, when welding, only the welding gun needs to be moved to the position needing welding, the second electrode arm 30 is overlapped close to the sheet metal 200, the seamless electrode cap 10 is in contact with the sheet metal 200, the working surface 21 is attached to the sheet metal 300 through the rotation of the electrode tip 2, that is, the seamless electrode cap 10 on the second electrode arm 30 is changed from the state shown in fig. 3 to the state shown in fig. 4, when welding, the first electrode arm 20 and the second electrode arm 30 are pressed by the welding gun cylinder, the working surface 21 of the seamless electrode cap 10 can be completely attached to the sheet metal 200, and the appearance welding spot formed at this time does not have surface indentation and distortion problems, and further realize traceless welding of appearance welding spots.

Optionally, the contact area of the working surface 21 of the traceless electrode cap 10 and the metal plate 200 is 2-4 times that of a common electrode cap, so that the indentation and deformation of the appearance welding point of the metal plate 200 are reduced.

According to the utility model discloses welder 100, when having the panel beating 200 of outward appearance solder joint to the welding, can effectively solve electrode cap and panel beating 200's laminating problem, prevent that surface quality problems such as indentation, distortion from appearing in the outward appearance solder joint, realize the no trace welding, simultaneously, no trace electrode cap 10 is less for the copper backing plate size, can effectively adapt to less operating space, and the welding reachability is strong, can adapt to the operating region of outward appearance solder joint to be favorable to promoting production efficiency.

In addition, as the traceless electrode cap 10 realizes traceless welding, a copper base plate or a special fixture used in the original traceless welding process is eliminated, and the problems that the processing and installation difficulty is high, the welding accessibility is not high, the appearance surface is easy to scratch, the copper base plate needs to be periodically polished, the cost of the special fixture is high, the production efficiency is low and the like in the original traceless welding process are solved.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A traceless electrode cap, comprising:

a ball head having a spherical portion configured as at least a portion of a sphere and a connecting portion extending outwardly from the spherical portion;

the electrode head is internally provided with an inner spherical surface matched with the spherical part, the electrode head is provided with a working surface, and the working surface is a plane or a curved surface;

and the pressing ring is used for connecting the ball head with the electrode tip, and the pressing ring is detachably connected with the electrode tip.

2. The traceless electrode cap of claim 1, wherein the electrode tip has a ball head mounting end, the pressure ring is adapted to be mounted at the ball head mounting end, the pressure ring confines the spherical portion inside the electrode tip, and the connecting portion is adapted to protrude out of the electrode tip through the pressure ring.

3. The traceless electrode cap of claim 2, wherein a pressing ring mounting groove is formed at the ball head mounting end, a groove wall of the pressing ring mounting groove is provided with an internal thread, and the pressing ring is provided with an external thread in threaded connection with the internal thread.

4. The traceless electrode cap of claim 3, wherein a thickness of the pressure ring is greater than a depth of the pressure ring mounting groove.

5. The traceless electrode cap of any of claims 1-4, wherein the pressure ring comprises: be suitable for with the spacing section of bulb of spherical portion laminating and be suitable for the confession the bulb that connecting portion wore to establish dodges the section, the diameter that the section was dodged to the bulb is less than the external diameter of spherical portion just is greater than the external diameter of connecting portion.

6. The traceless electrode cap of claim 1, wherein the inner spherical surface is a clearance fit with the spherical portion.

7. The traceless electrode cap of claim 1, wherein the head diameter of the electrode tip is 1.5-2 times the diameter of the bulbous portion.

8. The traceless electrode cap of claim 1, wherein the connecting portion has an electrode arm mounting hole, and the electrode arm mounting hole is a tapered hole, a small diameter end of the tapered hole faces the spherical portion, and a large diameter end of the tapered hole faces away from the spherical portion.

9. A welding gun, comprising:

the traceless electrode cap comprises a first electrode arm and a second electrode arm which are oppositely arranged, electrode caps are arranged on the first electrode arm and the second electrode arm, and the electrode cap on at least one of the first electrode arm and the second electrode arm is the traceless electrode cap in any one of claims 1-8.

10. The welding gun according to claim 9, characterized in that the traceless electrode cap is arranged on the corresponding electrode arm on the side of the sheet metal having the apparent weld point.

Images