CN215846280U - Electrode structure and welding tongs for nut welding - Google Patents

Electrode structure and welding tongs for nut welding Download PDF

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Publication number
CN215846280U
CN215846280U CN202121109784.3U CN202121109784U CN215846280U CN 215846280 U CN215846280 U CN 215846280U CN 202121109784 U CN202121109784 U CN 202121109784U CN 215846280 U CN215846280 U CN 215846280U
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China
Prior art keywords
welding
electrode
nut
arm
needle
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Active
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CN202121109784.3U
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Chinese (zh)
Inventor
韩卫东
潘敏
张菲
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SAIC GM Wuling Automobile Co Ltd
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SAIC GM Wuling Automobile Co Ltd
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Abstract

The utility model provides an electrode structure and a welding tongs for nut welding. The electrode structure for nut welding comprises a first electrode and a second electrode, the first electrode is used for being detachably fixed on a movable welding tong arm of a welding tong, the second electrode comprises a mounting seat and a nut welding needle, the nut welding needle is inserted into the mounting seat, a needle head of the nut welding needle is exposed out of the mounting seat to be used for positioning a nut, and the mounting seat is used for being detachably fixed on a static welding tong arm of the welding tong. The electrode structure is welded including moving welding tong arm, quiet pincers arm and above-mentioned electrode structure to the soldering turret, and first electrode is dismantled and is fixed in moving electrode arm, and the mount pad is dismantled and is fixed in quiet electrode arm. The utility model enables the improved electrode holder to be used for welding the nut and the plate by replacing the electrode tip of the existing electric welding holder with the electrode structure, and enables the electrode holder to be changed into the spot welding holder again by replacing the electrode structure with the original electrode tip, thereby meeting the spot welding requirement of the multilayer plate and having the advantages of convenience and low cost.

Description

Electrode structure and welding tongs for nut welding
Technical Field
The utility model relates to the field of welding tongs, in particular to an electrode structure for nut welding and the welding tongs.
Background
A spot welding tongs is generally used for welding a body-in-white, and the spot welding tongs finishes welding by utilizing the proper matching of resistance heat and mechanical force to obtain a high-strength high-quality welding spot. The spot welding tongs can realize spot welding of two layers of white bodies and even multilayer plates, but cannot realize welding of nuts and plates, and the requirement for welding the nuts and the plates also objectively exists in the processes of repairing and trial-manufacturing soft tooling vehicles and the like.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide an electrode structure and a welding tongs for nut welding, and aims to solve the technical problem that the existing spot welding tongs cannot weld nuts to plates.
In order to achieve the purpose, the electrode structure for nut welding provided by the utility model comprises a first electrode and a second electrode, wherein the first electrode is used for being detachably fixed on a movable welding tong arm of a welding tong, the second electrode comprises an installation seat and a nut welding needle, the nut welding needle is inserted into the installation seat, a needle head of the nut welding needle is exposed out of the installation seat to be used for positioning a nut, and the installation seat is used for being detachably fixed on a static welding tong arm of the welding tong.
Preferably, the welding pin assembly further comprises an elastic piece, one end of the elastic piece is fixed to the mounting seat, and the other end of the elastic piece is fixed to the nut welding pin.
Preferably, the mounting base comprises a first mounting cap and a second mounting cap which are detachably connected, the second mounting cap is used for being fixed with the static welding tongs arm, the elastic piece is fixed with the second mounting cap, and the needle head of the nut welding needle is exposed out of the first mounting cap.
Preferably, the first mounting cap includes an annular portion and a mounting portion extending from the annular portion toward a direction close to the second mounting portion, the mounting portion is inserted into the inside of the second mounting cap, and the annular portion abuts against the second mounting cap.
Preferably, the nut welding needle comprises a welding needle body and a needle head located at the end part of the welding needle body, the welding needle body is connected with the elastic piece, the mounting seat is provided with a through hole for the needle head to pass through, and the diameter of the welding needle body is larger than that of the through hole.
Preferably, the welding pin body includes a body portion and a protruding portion protruding outward from the body portion, the pin head and the protruding portion are respectively located at two ends of the body portion, the protruding portion is inserted into the elastic member, and the elastic member abuts against the body portion.
The utility model also provides a welding tongs which comprises a movable welding tongs arm, a static welding tongs arm and the electrode structure for nut welding, wherein the first electrode is detachably fixed on the movable electrode arm, and the mounting seat is detachably fixed on the static electrode arm.
Preferably, the movable electrode holder arm comprises a movable electrode arm and a first worm detachably fixed on the movable electrode arm, the static electrode holder arm comprises a static electrode arm and a second worm detachably fixed on the static electrode arm, the first electrode is detachably fixed on the first worm, and the mounting seat is detachably fixed on the second worm.
Preferably, the end of the first worm is a tapered opening, the end of the first electrode for assembling with the first worm is also a tapered opening, and the end of the first electrode and the end of the first worm are mutually clamped.
Preferably, the one end that the syringe needle was kept away from to the mount pad is the taper mouth that the convergent set up, the tip of second worm also is the taper mouth that the convergent set up, keeping away from of mount pad the one end of syringe needle with the tip of second worm joint each other.
According to the technical scheme, firstly, a nut is required to be placed on an installation seat, a needle head of a nut welding needle penetrates through a hollow part in the center of the nut, so that the nut cannot fall off due to external force, then a plate to be welded is placed between a movable welding tong arm and a static welding tong arm, the two welding tong arms are moved to the position where the nut is required to be welded, then a control device controls the movable welding tong arm to collide against the static welding tong arm, in the short time when the nut collides with the plate, a large amount of resistance heat is generated by current passing through electrodes, the parts where the plate and the nut are contacted with each other are melted and bonded through the resistance heat, and finally the purpose of welding is achieved. The utility model is formed by improving the electrode at the end part of the welding tongs on the basis of the existing spot welding tongs, the reconstruction is convenient and fast, the cost is low, and the reconstructed novel electrode can be quickly replaced with the original spot welding electrode, so that the original welding tongs simultaneously has two functions of spot welding of plates and welding of nuts of plates.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of a portion of an exemplary embodiment of a soldering tweezers according to the present invention;
FIG. 2 is an exploded view of the second electrode of FIG. 1;
fig. 3 is a schematic structural diagram of an embodiment of the soldering turret of the present invention.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name (R)
100 Electrode structure 110 A first electrode
120 Second electrode 121 Mounting seat
122 First mounting cap 123 Annular portion
124 Mounting part 125 Second mounting cap
126 Nut welding needle 127 Welding needle body
128 Body part 129 Raised part
131 Needle head 132 Elastic piece
133 Through hole 200 Soldering pliers
210 Movable welding tongs arm 211 Movable electrode arm
212 First worm 220 Static welding tongs arm
221 Static electrode arm 222 Second worm
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The present invention provides an electrode structure 100 for nut welding.
Referring to fig. 1 to 3, in an embodiment of the present invention, the electrode structure 100 includes a first electrode 110 and a first electrode 120, the first electrode 110 is used for being detachably fixed to a movable welding tong arm 210 of a welding tong 200, the first electrode 120 includes a mounting seat 121 and a nut welding pin 126, the nut welding pin 126 is inserted into the mounting seat 121, a needle 131 of the nut welding pin 126 is exposed out of the mounting seat 121 for positioning a nut, and the mounting seat 121 is used for being detachably fixed to a static welding tong arm 220 of the welding tong 200.
In a specific process of welding the nut to the plate, firstly, the nut needs to be placed on the mounting seat 121, the needle 131 of the nut welding needle 126 penetrates through a hollow part in the center of the nut, so that the nut cannot fall off due to external force, then, the plate to be welded is placed between the movable welding clamp arm 210 and the static welding clamp arm 220, the two welding clamps 200 are moved to positions where the nut needs to be welded, then, the control device (not shown in the figure) controls the movable welding clamp arm 210 to collide against the static welding clamp arm 220, in a short time when the nut collides with the plate, a large amount of resistance heat is generated by current passing through the electrodes, the parts where the plate and the nut are contacted with each other are melted and bonded, and finally, the purpose of welding is achieved. Two electrodes of this electrode structure 100 all can be dismantled, only need short time alright can dismantle and change for the electrode that is used for the spot welding flow, this just makes same soldering turret 200 possess two kinds of efficiency, and original spot welding electrode just can reform transform into this kind of neotype electrode structure 100 very easily, has convenient, low-cost advantage. The first electrode and the second electrode of this embodiment may be made of copper, which has high thermal conductivity, but in other embodiments, other metal materials with high thermal conductivity may also be used, and are not specifically limited herein.
Further, the welding pin assembly further includes an elastic member 132, one end of the elastic member 132 is fixed to the mounting seat 121, and the other end of the elastic member 132 is fixed to the nut welding pin 126. As shown in fig. 2, in the process of welding the nut to the plate, if the nut itself is smaller and the needle 131 of the nut welding needle 126 passing through the central hollow of the nut may be higher than the nut, the end of the needle 131 is pressed against the plate before the nut contacts the plate, and damage is caused, so as to avoid this problem, an elastic member 132 is placed in the mounting seat 121, the elastic member 132 may be a spring, when the end of the needle 131 collides with the plate before the nut, the elastic member 132 is contracted by the force transmitted by the nut welding needle 126, and the needle 131 of the nut welding needle 126 is retracted into the nut, and is flush with the height of the nut.
The mounting seat 121 comprises a first mounting cap 122 and a second mounting cap 125 which are detachably connected, the second mounting cap 125 is used for fixing with the arm of the static welding tongs 200, the elastic element 132 is fixed with the second mounting cap 125, and the needle 131 of the nut welding needle 126 exposes out of the first mounting cap 122. The first and second mounting caps 122 and 125 are detachable from each other to facilitate replacement when internal parts are damaged.
Further, the first mounting cap 122 includes an annular portion 123 and a mounting portion 124 extending from the annular portion 123 in a direction approaching the second mounting portion 124, the mounting portion 124 is inserted into the second mounting cap 125, and the annular portion 123 abuts against the second mounting cap 125. As shown in the right half of fig. 1, in order to achieve the effect of easy detachment of the first mounting cap 122 and the second mounting cap 125, the cross section of the mounting portion 124 at the lower end of the first mounting cap 122 may be slightly larger than the cross section of the upper end of the second mounting cap 125, and the cross section of the annular portion 123 of the first mounting cap 122 may be slightly larger than the cross section of the upper end of the second mounting cap 125, so that the mounting portion 124 of the first mounting cap 122 may be plugged into the upper end of the second mounting cap 125, and the annular portion 123 of the first mounting cap 122 is clamped by the upper end of the second mounting cap 125, thereby achieving a better fixing effect and being easy to detach.
The nut welding pin 126 comprises a welding pin body 127 and a pin head 131 located at the end of the welding pin body 127, the welding pin body 127 is connected with an elastic piece 132, a through hole 133 for the pin head 131 to pass through is formed in the mounting seat 121, and the diameter of the welding pin body 127 is larger than that of the through hole 133. The center of the first mounting cap 122 is provided with a through hole 133, the cross section of the through hole 133 is slightly larger than the cross section of the bottom of the needle head 131 and slightly smaller than the cross section of the welding needle body 127, so that the needle head 131 can pass through the first mounting cap 122, and the welding needle body 127 can be clamped, thereby achieving the fixing effect.
Preferably, the welding pin body 127 includes a body portion 128 and a protrusion portion 129 protruding from the body portion 128, the needle 131 and the protrusion portion 129 are respectively located at two ends of the body portion 128, the protrusion portion 129 is inserted into the elastic member 132, and the elastic member 132 abuts against the body portion 128. The cross section of the protrusion 129 is slightly smaller than that of the elastic member 132, and the cross section of the welding pin body 127 is slightly larger than that of the elastic member 132, so that the protrusion 129 can be inserted into the elastic member 132, and the welding pin body 127 is clamped by the upper end of the elastic member 132, thereby achieving the fixing effect.
The utility model also provides a welding tongs 200, which comprises a movable welding tongs 200 arm, a static welding tongs 200 arm and the electrode structure 100 for nut welding as described in any one of the above, wherein the first electrode 110 is detachably fixed on the movable electrode arm 211, and the mounting seat 121 is detachably fixed on the static electrode arm 221. As shown in fig. 3, both the first electrode 110 and the first electrode 120 of the welding tongs 200 can be conveniently detached and replaced with the original spot welding electrodes at any time, so that the function of the welding tongs 200 is changed into spot welding for a plate.
Since the soldering turret 200 adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
Specifically, the movable electrode holder 200 arm comprises a movable electrode arm 211 and a first worm 212 detachably fixed on the movable electrode arm 211, the static electrode holder 200 arm comprises a static electrode arm 221 and a second worm 222 detachably fixed on the static electrode arm 221, the first electrode 110 is detachably fixed on the first worm 212, and the mounting seat 121 is detachably fixed on the second worm 222. The first worm 212 and the second worm 222 are also detachable, the second worm 222 is a bent rod and is composed of three small segments, and the two worms can be conveniently detached, so that specific damaged parts can be replaced at low cost without replacing the whole worm.
More specifically, the end of the first worm 212 is a tapered opening, the end of the first electrode 110 for assembling with the first worm 212 is also a tapered opening, and the end of the first electrode 110 and the end of the first worm 212 are clamped with each other.
The end of the mounting seat 121 far away from the needle 131 is a tapered opening, the end of the second worm 222 is also a tapered opening, and the end of the mounting seat 121 far away from the needle 131 and the end of the second worm 222 are clamped with each other.
The first electrode 110, the first electrode 120, the first worm 212 and the second worm 222 can be fixed by adopting a conical compression technology, as shown in fig. 1 and 3, the cross section of the bottom end of the first electrode 120 is slightly larger than that of the upper end of the first worm 212, and the lower part of the first electrode 120 is sleeved on the first worm 212 and compressed, so that the fixation is completed; the cross section of the bottom end of the first electrode 110 is slightly larger than that of the lower end of the second worm 222, and the bottom of the first electrode 110 is sleeved on the second worm 222 and is pressed tightly, so that the fixation is completed; when the two electrodes need to be disassembled, the electrodes only need to be held slightly to be rotated to be loosened and then pulled out, so that the disassembly tool is easy and quick. Besides the conical compression mode, the threaded structure can be adopted to meet the detachable fixing requirements of the components.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. An electrode structure for nut welding, comprising:
the first electrode is detachably fixed on a movable welding clamp arm of a welding clamp;
the second electrode, the second electrode is including mount pad and nut welding needle, the nut welding needle inserts in the mount pad, just the syringe needle of nut welding needle exposes the mount pad is in order being used for the location to the nut, the mount pad is used for dismantling to be fixed in the quiet tong arm that welds of soldering turret.
2. The electrode structure for nut welding of claim 1, wherein said pin assembly further comprises an elastic member, one end of said elastic member being fixed to said mounting seat and the other end of said elastic member being fixed to said nut pin.
3. The electrode structure for nut welding according to claim 2, wherein the mounting seat comprises a first mounting cap and a second mounting cap which are detachably connected, the second mounting cap is used for being fixed with the static electrode holder arm, the elastic member is fixed with the second mounting cap, and the needle head of the nut welding needle is exposed out of the first mounting cap.
4. The electrode structure for nut welding according to claim 3, wherein the first mounting cap includes an annular portion and a mounting portion extending from the annular portion in a direction approaching the second mounting portion, the mounting portion being inserted into an interior of the second mounting cap, the annular portion abutting against the second mounting cap.
5. The electrode structure for nut welding according to claim 2, wherein the nut welding pin includes a welding pin body and the needle head located at an end of the welding pin body, the welding pin body is connected to the elastic member, the mounting seat is provided with a through hole for the needle head to pass through, and a diameter of the welding pin body is larger than a diameter of the through hole.
6. The electrode structure for nut welding according to claim 5, wherein the welding pin body includes a body portion and a projection portion projecting outward from the body portion, the pin head and the projection portion are respectively located at both ends of the body portion, the projection portion is inserted into the elastic member, and the elastic member abuts against the body portion.
7. A welding tongs, characterized by comprising a movable welding tongs arm, a static welding tongs arm and the electrode structure for nut welding according to any one of claims 1-6, wherein the first electrode is detachably fixed on the movable electrode arm, and the mounting seat is detachably fixed on the static electrode arm.
8. The electrode holder of claim 7 wherein the movable electrode holder arm comprises a movable electrode arm and a first worm removably secured to the movable electrode arm, the stationary electrode holder arm comprises a stationary electrode arm and a second worm removably secured to the stationary electrode arm, the first electrode is removably secured to the first worm, and the mounting cup is removably secured to the second worm.
9. The soldering tweezers of claim 8, wherein the end of the first worm has a tapered opening, and wherein the end of the first electrode for fitting to the first worm also has a tapered opening, and wherein the end of the first electrode and the end of the first worm are snap-fit together.
10. The soldering tweezers of claim 8, wherein the end of the mounting base distal to the needle is tapered and the end of the second worm is tapered, and wherein the end of the mounting base distal to the needle and the end of the second worm snap-fit into one another.
CN202121109784.3U 2021-05-21 2021-05-21 Electrode structure and welding tongs for nut welding Active CN215846280U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121109784.3U CN215846280U (en) 2021-05-21 2021-05-21 Electrode structure and welding tongs for nut welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121109784.3U CN215846280U (en) 2021-05-21 2021-05-21 Electrode structure and welding tongs for nut welding

Publications (1)

Publication Number Publication Date
CN215846280U true CN215846280U (en) 2022-02-18

Family

ID=80316594

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121109784.3U Active CN215846280U (en) 2021-05-21 2021-05-21 Electrode structure and welding tongs for nut welding

Country Status (1)

Country Link
CN (1) CN215846280U (en)

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