CN218856001U

CN218856001U - Welding tool and welding equipment

Info

Publication number: CN218856001U
Application number: CN202223097185.1U
Authority: CN
Inventors: 赵新华; 李昱甫; 李中亦; 余根淮
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-04-14
Anticipated expiration: 2032-11-22
Also published as: WO2024108818A1

Abstract

This application is applicable to battery manufacturing technical field, provides a welding frock and welding equipment, and the welding frock includes: the mounting base is internally provided with a mounting hole; one end of the tool body is movably accommodated in the mounting hole along a first direction, and a welding channel for welding is arranged in the tool body; the elastic piece is sleeved on the periphery of the tool body, two ends of the elastic piece are respectively abutted against the mounting seat and the tool body, and the deformation direction of the elastic piece is the same as the first direction. Above-mentioned welding frock and welding equipment can promote welding quality, avoids the rosin joint.

Description

Welding tool and welding equipment

Technical Field

The application relates to the field of battery production, in particular to a welding tool and welding equipment.

Background

Energy conservation and emission reduction are the key points of sustainable development of automobiles, and electric vehicles are paid extensive attention due to the advantages of environmental protection. The power battery is an important component in an electric vehicle.

The battery is composed of a box body and a plurality of battery monomers accommodated in the box body, wherein the battery monomers are obtained by assembling an electrode assembly (a naked battery cell) by a positive electrode plate, a negative electrode plate and a diaphragm in a winding or laminating mode and the like, then putting the electrode assembly into a shell and injecting electrolyte. During the production process of the battery, the plurality of battery cells accommodated in the box body need to be welded with the bus-bar component, so that the plurality of battery cells are connected in series or in parallel through the bus-bar component. However, in the existing battery production process, the problem of poor welding quality exists between the battery monomer and the bus bar component, and the production quality and yield of the battery are reduced.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the application provides a welding tool and welding equipment, can promote welding quality.

The embodiment of the application provides a welding frock, includes:

the mounting seat is internally provided with a mounting hole;

one end of the tool body is movably accommodated in the mounting hole along a first direction, and a welding channel for welding is arranged in the tool body;

the elastic piece is sleeved on the periphery of the tool body, two ends of the elastic piece are respectively abutted against the mounting seat and the tool body, and the deformation direction of the elastic piece is the same as the first direction.

The welding tool comprises the mounting seat, the tool body and the elastic piece, one end of the tool body is used for abutting against a workpiece to be welded, the other end of the tool body abuts against the elastic piece, the elastic piece can provide elasticity for the tool body when the tool body is pressed against the workpiece to be welded, and therefore the tool body can be guaranteed to be pressed against the workpiece to be welded, and welding quality of the workpiece to be welded is improved. Meanwhile, the elastic piece is sleeved on the periphery of the tool body, so that the elastic piece can provide balanced elastic force for the tool body, and the problem that the tool body cannot return due to the abnormal return of the elastic piece to cause insufficient welding is avoided. Consequently, above-mentioned welding frock can make the frock body kick-back smoothly, avoids the problem of rosin joint, has optimized the welding effect, has promoted the production quality and the yield of battery.

In some embodiments, the welding tool further comprises a clamping member, the clamping member is connected to one side of the mounting seat and provided with a guide hole, and the tool body penetrates through the guide hole.

Through adopting above-mentioned technical scheme, the frock body is worn to locate in the guiding hole to the guiding hole can be used to the direction frock body, avoids the frock body to take place the off normal at the in-process that removes, promotes the motion precision of frock body.

In some embodiments, the retaining member is detachably connected to the mounting base, and the tool body is movably disposed in the guide hole along the first direction and can be retained on the retaining member.

By adopting the technical scheme, the clamping piece can prevent the tool body from falling off from the mounting seat; the welding tool is convenient to assemble, disassemble and maintain, and therefore light blocking caused by residual particles in a welding channel of the tool body is avoided; because the frock body is held the piece through the card and is installed in the mount pad, the frock body need not direct contact bolt, reduces the risk that the unable resilience of frock body targets in place because of the other state of living that the bolt leads to unusually when the frock body kick-backs.

In some embodiments, a clamping protrusion is disposed on the outer peripheral surface of the tool body, two ends of the elastic member respectively abut against the inner wall of the mounting hole and the clamping protrusion, and one end of the clamping protrusion, which is away from the elastic member, may abut against the clamping member or be spaced from the clamping member.

The clamping protrusion is arranged on the tool body, so that the elastic piece can be installed, and the clamping protrusion can be abutted to the clamping piece to limit the tool body.

In some embodiments, the holding member is provided with a plurality of limiting protrusions for limiting and holding the holding protrusions on the periphery of the guide hole.

Through set up spacing arch on the piece is held to the card, spacing arch can hold the arch to the card and hold and spacing, avoids frock body off normal.

In some embodiments, the tool body comprises a connecting seat and a welding nozzle which are connected, the welding channel penetrates through the connecting seat and the welding nozzle, the connecting seat is of a cylindrical structure, the elastic piece is sleeved on the connecting seat, and the welding nozzle is used for pressing a workpiece to be welded.

Through adopting above-mentioned technical scheme, the frock body includes connecting seat and welding mouth, and the connecting seat is the cylindricality structure, has both made things convenient for the cover to establish the elastic component, and the convenience slides in the mounting hole again to the frock body is comparatively smooth and easy at the removal process of first direction.

In some embodiments, a first limiting portion is disposed on the connecting seat, the first limiting portion is movably disposed in the guide hole, and the first limiting portion is used for limiting the rotation of the tool body.

Through setting up first spacing portion, can restrict the frock body rotation to avoid arousing the rosin joint because of the rotatory polarisation that causes of frock body.

In some embodiments, the inner surface of the guide hole is provided with a second limiting portion, the first limiting portion and the second limiting portion are respectively a first plane formed on the peripheral sidewall of the connecting seat and a second plane formed on the hole wall of the guide hole, and the first plane and the second plane are oppositely arranged and parallel to each other.

Through adopting above-mentioned technical scheme, the cooperation of first spacing portion and the spacing portion of second can prevent that the frock body from rotating to first spacing portion and the spacing portion of second are the plane, and simple structure does benefit to the realization, and the cost is lower.

In some embodiments, the retaining member includes two retaining blocks disposed opposite to each other, the two retaining blocks are butted and jointly enclose the guide hole, and the retaining block is fixedly connected to the mounting base through a fastener.

Through holding the card piece and setting up to the card piece of holding of two butt joints, conveniently hold the installation and the dismantlement of piece, promoted the convenience of using.

In some embodiments, the welding tool further comprises a gas supply connector connected to the tool body, the gas supply connector is communicated with the welding channel, and the gas supply connector is used for introducing protective gas into the welding channel.

The welding quality of the welding seam can be improved by introducing the protective gas into the welding channel, the width of the heating action belt of the welding seam is reduced, and the material oxidation is avoided.

In some embodiments, the welding tool further comprises a dust removal pipe connected to the tool body, and the dust removal pipe is communicated with the welding channel.

Through setting up the dust removal pipe, in welding process, the dust removal pipeline is used for the smoke and dust that the gettering produced when welding, avoids being in the light to, be favorable to protective gas to get into the welding passageway through removing dust, improve the welding quality of welding seam.

Embodiments of a second aspect of the present application provide a welding apparatus, comprising:

the welding tool of the first aspect; and

and the welding device is arranged above the welding tool.

Above-mentioned welding equipment includes the welding frock that the first aspect provided, has the advantage of promoting welding quality equally.

The above description is only an overview of the technical solutions of the present application, and the present application may be implemented in accordance with the content of the description so as to make the technical means of the present application more clearly understood, and the detailed description of the present application will be given below in order to make the above and other objects, features, and advantages of the present application more clearly understood.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments or the conventional technology will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic perspective view of a welding tool according to an embodiment of the present disclosure;

FIG. 2 is a top view of the welding fixture shown in FIG. 1;

FIG. 3 isbase:Sub>A cross-sectional view of the welding tooling of FIG. 2 taken along line A-A;

FIG. 4 is an exploded perspective view of the welding tooling of FIG. 1;

fig. 5 is a perspective view of a retainer in the welding tool shown in fig. 4.

The designations in the figures mean:

100. welding a tool;

10. a mounting base; 101. mounting holes; 102. a through hole; 103. a step surface;

20. a tool body; 201. welding a channel; 21. a connecting seat; 211. a clamping projection; 212. a first limiting part; 22. welding a nozzle; 23. an installation part;

30. an elastic member;

40. a retaining member; 401. a guide hole; 402. a second limiting part; 41. clamping the block; 411. connecting holes; 412. a limiting bulge;

50. a fastener;

60. a gas supply joint;

70. a dust removal pipe; 71. a first pipe body; 72. a second tube.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural pieces" refers to two or more (including two).

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be configured and operated in a particular orientation, and thus, should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

In the present application, the battery cell may include a lithium ion secondary battery, a lithium ion primary battery, a lithium sulfur battery, a sodium lithium ion battery, a sodium ion battery, a magnesium ion battery, or the like, which is not limited in the embodiments of the present application. The battery cell may be a cylinder, a flat body, a rectangular parallelepiped, or other shapes, which is not limited in the embodiments of the present application. The battery cells are generally divided into three types in an encapsulation manner: the cylindrical battery monomer, the square battery monomer and the soft package battery monomer are also not limited in the embodiment of the application.

Reference to a battery in embodiments of the present application refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery referred to in the present application may include a battery module or a battery pack, etc. Batteries generally include a case for enclosing one or more battery cells or a plurality of battery modules. The box can avoid liquid or other foreign matters to influence the charging or discharging of battery monomer.

In the battery, the battery further comprises a bus bar part, wherein the bus bar part is used for realizing the electrical connection among the plurality of battery cells, that is, the plurality of battery cells are welded with the bus bar part, so that the plurality of battery cells can be connected in series or in parallel or in series-parallel, and the series-parallel refers to the series connection and the parallel connection among the plurality of battery cells. The plurality of battery monomers can be directly connected in series or in parallel or in series-parallel, and the whole formed by the plurality of battery monomers is accommodated in a box body of the battery. The single battery is provided with a pole which is mutually welded with the confluence component, and the pole plays a role in outputting or inputting electric energy of the single battery.

The battery is composed of a box body and a plurality of battery monomers accommodated in the box body, wherein the battery monomers are obtained by assembling an electrode assembly (a naked battery cell) by a positive electrode plate, a negative electrode plate and a diaphragm in a winding or laminating mode and the like, then putting the electrode assembly into a shell and injecting electrolyte. During the production process of the battery, the plurality of battery cells accommodated in the box body need to be welded with the bus bar component, so that the plurality of battery cells are connected in series or in parallel through the bus bar component.

The inventor researches and discovers that in the existing battery production process, the bus-bar component needs to be abutted against the pole posts of the plurality of battery cells so as to complete the welding work between the bus-bar component and the pole posts of the plurality of battery cells simultaneously. However, due to the difference in height of the poles of the single batteries, the phenomenon that the contact between the confluence component and the poles of the single batteries is not in place is very easy to occur, and the situation of insufficient welding or empty welding exists between the confluence component and the poles of the single batteries, so that the problem of poor welding quality exists between the single batteries and the confluence component, and the production quality and yield of the batteries are reduced.

In order to solve the problem of poor welding quality, the inventor designs a welding tool and a welding device through deep research, wherein the welding tool comprises a mounting seat, a tool body and an elastic piece, one end of the tool body is used for abutting against a workpiece to be welded, the other end of the tool body abuts against the elastic piece, and the elastic piece can provide elasticity for the tool body when the tool body is pressed on the workpiece to be welded, so that the tool body 20 can be guaranteed to be pressed on the workpiece to be welded, and the welding quality of the workpiece to be welded is improved; the elastic piece is sleeved on the tool body, so that balanced elastic force can be provided for the tool body, and the phenomenon that the tool body cannot return due to the abnormal return of the elastic piece to cause insufficient welding is avoided.

Some embodiments of the first aspect of the present application provide a welding tool. The welding tool is used for pressing and holding a workpiece to be welded so as to position the workpiece to be welded in the welding process and prevent the workpiece to be welded from deviating.

Referring to fig. 1 to 3, the welding tool 100 includes a mounting base 10, a tool body 20, and an elastic member 30. A mounting hole 101 is formed in the mounting base 10; one end of the tool body 20 is movably accommodated in the mounting hole 101 along a first direction X, and a welding channel 201 for welding is arranged in the tool body 20; the elastic member 30 is sleeved around the tool body 20, two ends of the elastic member 30 respectively abut against the mounting seat 10 and the tool body 20, and a deformation direction of the elastic member 30 is the same as the first direction X.

The mounting seat 10 is used for mounting the tool body 20 and the elastic member 30, and the mounting seat 10 can connect the tool body 20 with an external structure. The mounting hole 101 is a through hole penetrating through the mounting seat 10 so as to accommodate one end of the tool body 20 and the elastic member 30.

One end of the tooling body 20 is movably accommodated in the mounting hole 101 along the first direction X, and the other end of the tooling body is used for abutting against a workpiece to be welded, that is, the tooling body 20 is only partially accommodated in the mounting hole 101. The first direction X is the thickness direction of the mounting seat 10 and also the depth direction of the mounting hole 101.

The tool body 20 may be a metal member, which has good rigidity and strength and can also withstand the high temperature generated during the welding process. For example, the tool body 20 is a welding copper nozzle, but is not limited thereto. In addition, the tool body 20 may be an assembly or an integrated structure, which is not limited in this application.

Be equipped with in the frock body 20 and be used for implementing welded welding passageway 201, welding passageway 201 runs through the relative both sides of frock body 20 along first direction X. The welding channel 201 may be a laser channel to laser weld a workpiece to be welded; the weld channel 201 may also be used for insertion of a welder.

The tool body 20 is elastically connected with the mounting seat 10 through the elastic piece 30, the deformation direction of the elastic piece 30 is the same as the first direction X, and when the elastic piece 30 is elastically deformed, the tool body 20 can move relative to the mounting seat 10 in the first direction X so as to adjust the distance between the end part of the tool body 20, which is used for abutting against the workpiece, and the mounting seat 10. The elastic member 30 may be a spring, but is not limited thereto, for example, the elastic member 30 may also be an element with better elasticity such as an elastic foam.

The elastic member 30 may be accommodated in the mounting hole 101, or may be disposed outside the mounting hole 101, for example, the elastic member 30 is accommodated in the mounting hole 101, and two ends of the elastic member 30 may respectively abut against an inner wall of the mounting hole 101 and a peripheral side wall of the tool body 20; alternatively, the elastic element 30 is disposed outside the mounting hole, and the elastic element 30 abuts against the surface of the mounting seat 10 and the peripheral side wall of the tool body 20.

Above-mentioned welding frock 100 includes mount pad 10, frock body 20 and elastic component 30, and the one end of frock body 20 is used for supporting in treating the welded work piece, and the other end supports and holds in elastic component 30, and elastic component 30 can provide elasticity for frock body 20 when frock body 20 compresses tightly on treating the welded work piece to can guarantee that frock body 20 compresses tightly on treating the welded work piece, treat the welding quality of welded work piece with the promotion. Meanwhile, because the elastic member 30 is sleeved on the periphery of the tool body 20, the elastic member 30 can provide balanced elastic force for the movement of the tool body 20 in the mounting hole 101, and compared with a mode of arranging a plurality of independent elastic members, if one elastic member is abnormally reset, the tool body 20 is abnormally reset, and the elastic deformation conditions of the elastic members may be inconsistent; the elastic member 30 in the embodiment of the present application can avoid the problem that the tool body 20 cannot return due to the abnormal return of the elastic member 30, which causes cold joint, as a whole. Therefore, the welding tool 100 can enable the tool body 20 to rebound smoothly, the problem of insufficient solder is avoided, the welding effect is optimized, and the production quality and yield of the battery are improved.

Referring to fig. 1 to 5, in some embodiments, the welding tool 100 further includes a clamping member 40, the clamping member 40 is connected to one side of the mounting base 10, a guide hole 401 is formed in the clamping member 40, and the tool body 20 is inserted into the guide hole 401.

The guide hole 401 is a through hole penetrating through the two opposite ends of the retaining member 40 in the first direction X, and is used for guiding the movement of the tool body 20.

The clamping piece 40 can be fixedly connected to the mounting seat 10, and then the tool body 20 can movably penetrate through the guide hole 401; the clamping member 40 can also be slidably connected to the mounting base 10 along the first direction, so that the tool body 20 and the clamping member 40 are fixedly connected and move synchronously, and at the moment, the guide hole 401 in the clamping member 40 can still guide the tool body 20, thereby preventing the tool body 20 from deviating when contacting with a workpiece to be welded.

Through adopting above-mentioned technical scheme, frock body 20 wears to locate in guiding hole 401 to guiding hole 401 can be used to direction frock body 20, avoids frock body 20 to take place the off normal at the in-process that removes, promotes frock body 20's motion accuracy.

In some embodiments, the retaining member 40 is detachably connected to the mounting base 10, the tool body 20 is movably disposed in the guide hole 401 along the first direction X, and the tool body 20 can be retained on the retaining member 40.

The tool body 20 can abut against the surface of the clamping member 40 facing the mounting base 10, and can also be clamped and matched with the clamping member 40 through the clamping part, so that the tool body 20 can be clamped on the clamping member 40.

The retainer 40 may be detachably connected to the mounting base 10 by a fastener 50 such as a bolt, so that the retainer 40 may be connected to the mounting base 10, and at this time, the tool body 20 may move in the first direction X relative to the retainer 40. When the elastic member 30 is compressed, the tool body 20 is not clamped to the clamping member 40, so that the tool body 20 can move in the first direction; when the elastic member 30 is stretched, the tool body 20 can be clamped on the clamping member 40, so that the clamping member 40 can limit the movement stroke of the tool body 20, and the tool body 20 is prevented from falling off.

Through adopting above-mentioned technical scheme, the card is held piece 40 and can not only lead the motion of frock body 20 through guiding hole 401, can also carry on spacingly to the motion stroke of frock body 20, avoids frock body 20 to drop from mount pad 10. Meanwhile, since the clamping member 40 is detachably connected to the mounting seat 10, when the tool body 20 needs to be cleaned, the clamping member 40 can be detached from the mounting seat 10 first, and then the tool body 20 is detached, so that the welding tool 100 is convenient to assemble, disassemble and maintain, and light blocking caused by residual particles in the welding channel 201 of the tool body 20 is avoided. In addition, because the tool body 20 is installed on the mounting seat 10 through the clamping piece 40, the tool body 20 does not need to directly contact with the bolt, and the risk that the tool body 20 cannot be rebounded in place due to the abnormal catching state caused by the bolt when the tool body 20 rebounds is reduced.

In some embodiments, the outer peripheral surface of the tool body 20 is provided with a retaining protrusion 211, two ends of the elastic member 30 respectively abut against the inner wall of the mounting hole 101 and the retaining protrusion 211, and an end of the retaining protrusion 211 away from the elastic member 30 may abut against the retaining member 40 or be spaced apart from the retaining member 40.

The outer peripheral surface of the tool body 20 is provided with one or more retaining protrusions 211, and the shape of the retaining protrusions 211 is not limited in the present application.

The elastic member 30 may be completely received in the mounting hole 101 or partially received in the mounting hole 101. Two ends of the elastic member 30 respectively abut against the retaining protrusion 211 and the mounting seat 10, so that the tool body 20 and the mounting seat 10 are elastically connected. Optionally, the inner wall of the mounting hole 101 is provided with a step surface 103, so that both ends of the elastic member 30 respectively abut against the retaining protrusion 211 and the step surface 103. It is understood that the step surface 103 may be replaced by another structure capable of abutting against the elastic member 30, such as a fixed ring.

When the elastic member 30 is not compressed, one end of the retaining protrusion 211 abuts against the elastic member 30 and the other end abuts against the retaining member 40, that is, the retaining protrusion 211 abuts against the periphery of the mounting hole 101; when the tool body 20 is pressed against the workpiece to be welded, the tool body 20 moves toward the mounting seat 10 and the elastic member 30 is compressed, and at this time, the retaining protrusion 211 and the retaining member 40 are arranged at an interval.

Through set up card and hold protruding 211 on tool body 20, can enough install elastic component 30, can support again and hold in holding piece 40 with spacing tool body 20, above-mentioned tool body 20's simple structure realizes the convenience.

In some embodiments, the tool body 20 includes a connecting seat 21 and a welding nozzle 22 connected to each other, and the welding passage 201 extends through the connecting seat 21 and the welding nozzle 22; the connecting seat 21 is a cylindrical structure, the elastic member 30 is sleeved on the connecting seat 21, and the welding nozzle 22 is used for pressing against a workpiece to be welded.

Optionally, the connecting seat 21 is cylindrical, so as to conveniently sleeve the annular elastic element 30; one end of the connecting seat 21 is accommodated in the mounting hole 101, and correspondingly, the mounting hole 101 is also a circular hole, so that the connecting seat 21 can conveniently slide in the mounting hole 101. The connecting seat 21 may also be an elliptic cylinder, a hexagonal prism or other cylindrical structures.

The welding nozzle 22 is arranged outside the mounting hole 101, and the end part facing away from the connecting base 21 is used for pressing against a workpiece to be welded.

The holding protrusion 211 is disposed around the outer circumferential surface of the connecting seat 21, and the holding protrusion 211 may be circular to be conveniently abutted against the elastic member 30.

Through adopting above-mentioned technical scheme, frock body 20 includes connecting seat 21 and welding mouth 22, and connecting seat 21 is the cylindricality structure, has both made things convenient for the cover to establish elastic component 30, conveniently slides in mounting hole 101 again to frock body 20 is more smooth and easy in the removal process of first direction X.

In some embodiments, the connecting seat 21 is further provided with a first limiting portion 212, the first limiting portion 212 is movably disposed in the guiding hole 401, and the first limiting portion 212 is used for limiting the rotation of the tool body 20.

Specifically, the first limiting portion 212 is located on one side of the retaining protrusion 211 departing from the elastic member 30, the first limiting portion 212 movably penetrates through the guide hole 401 of the retaining member 40, and the first limiting portion 212 can be matched with the guide hole 401 to limit the rotation of the tool body 20, so that the connecting seat 21 is guaranteed to move only in an up-and-down direction along the first direction X and cannot rotate. The first position-limiting part 212 is not only engaged with the guide hole 401, for example, the first position-limiting part 212 may be slidably connected with the hole wall of the guide hole 401.

Because connecting seat 21 is cylindrical, at the removal in-process of frock body 20, can take place rotatoryly, through setting up first spacing portion 212, can restrict frock body 20 rotatory to avoid arousing the rosin joint because of the rotatory polarisation that causes of frock body 20.

In some embodiments, the inner surface of the guide hole 401 is provided with a second limiting portion 402, and the first limiting portion 212 and the second limiting portion 402 are respectively a first plane formed on the peripheral sidewall of the connecting seat 21 and a second plane formed on the hole wall of the guide hole 401, and the first plane and the second plane are oppositely arranged and parallel to each other.

The guide hole 401 is adapted to the shape of the connection holder 21 and is substantially circular. In order to limit the rotation of the tool body 20, the second limiting portion 402 on the inner surface of the guide hole 401 and the first limiting portion 212 on the connecting seat 21 are both planes, and the first plane and the second plane are oppositely arranged and are parallel to each other so as to limit the rotation of the connecting seat 21, i.e., limit the rotation of the tool body 20, so that the vertical floating of the tool body 20 is smoother.

Through adopting above-mentioned technical scheme, the cooperation of first spacing portion 212 and the spacing portion 402 of second can prevent that frock body 20 from rotating to first spacing portion 212 and the spacing portion 402 of second are the plane, and simple structure does benefit to the realization, and the cost is lower.

For example, in other embodiments, one of the first position-limiting portion 212 and the second position-limiting portion 402 may be a slide rail, the other may be a slide groove, and both the slide rail and the slide groove extend along the first direction X, which may also have the effect of limiting the rotation of the tool body 20.

In some embodiments, the retaining member 40 is provided with a plurality of position-limiting protrusions 412 for limiting and retaining the retaining protrusions 211 on the circumferential side of the guide hole 401.

Specifically, the guide hole 401 is opened in the middle of the retaining member 40, and since the plurality of limiting protrusions 412 are disposed on the periphery of the guide hole 401, a clamping groove is formed in the middle of the retaining member 40. The retaining protrusion 211 can be abutted against the middle portion of the retaining member 40 and disposed between the plurality of limiting protrusions 412.

By arranging the limiting protrusion 412 on the clamping member 40, the limiting protrusion 412 can clamp and limit the clamping protrusion 211, so that the tool body 20 is prevented from deviating.

As shown in fig. 1 and 5, in some embodiments, the retaining member 40 includes two retaining blocks 41 disposed opposite to each other, the two retaining blocks 41 are connected to each other and together define a guide hole 401, and the retaining blocks 41 are fixedly connected to the mounting base 10 by fasteners 50.

Optionally, each of the retaining blocks 41 is provided with a half hole, and the half holes of the two retaining holes together enclose a guide hole 401. The holding block 41 is provided with a connecting hole 411, and the holding block 41 is detachably connected to the mounting base 10 by a fastener 50 penetrating through the mounting base 10 and the connecting hole 411. The fastener 50 may be a bolt.

During assembly, the elastic member 30 is firstly sleeved on the tool body 20, and then the two clamping blocks 41 are arranged on two sides of the tool body 20 and fixed on the mounting seat 10 through the fastening member 50.

Since the clamping member 40 is used for clamping the tool body 20 and mounting the tool body 20 on the mounting seat 10, the clamping member 40 is arranged into two butt-jointed clamping blocks 41, so that the clamping member 40 is convenient to mount and dismount, and the use convenience is improved.

In other embodiments, the fixture body 20 is fixedly connected to the retainer 40, and the retainer 40 is slidably connected to the mounting base 10.

Specifically, one end of the connecting member is fixedly connected to the retaining member 40, and the other end is slidably connected to the mounting base 10, so that the retaining member 40 is slidably connected to the mounting base 10. The clamping part 40 and the tool body 20 move synchronously, and the connecting part is a guide column and can guide the movement of the tool body 20 and the clamping part 40.

In some embodiments, the welding tool 100 further includes a gas supply connector 60 connected to the tool body 20, the gas supply connector 60 is communicated with the welding channel 201, and the gas supply connector 60 is used for introducing a shielding gas into the welding channel 201.

The commonly used shielding gases include helium, argon and nitrogen, and the present embodiment is not limited to protect other species.

The welding quality of the welding seam can be improved by introducing the protective gas into the welding channel 201, the width of the heating action belt of the welding seam is reduced, and material oxidation is avoided.

In some embodiments, the welding fixture 100 further includes a dust removal tube 70 connected to the fixture body 20, the dust removal tube 70 being in communication with the welding channel 201.

Specifically, one end of the dust removal pipe 70 is communicated with the welding channel 201, and the other end of the dust removal pipe 70 is communicated with the dust removal device, so that the dust removal pipe 70 can extract smoke or other impurities in the welding channel 201 to avoid blocking light.

The connection mode of the dust removal pipe 70 and the tool body 20 is not unique, for example, the dust removal pipe 70 is inserted into the side wall of the tool body 20, and the dust removal pipe 70 may also be connected with the side wall of the tool body 20 by a screw thread or a snap joint.

Optionally, the dust removal pipe 70 and the air supply connector 60 are respectively disposed on two opposite sides of the tool body 20. The tool body 20 further comprises a mounting part 23 connected between the connecting seat 21 and the welding nozzle 22, and the dust removing pipe 70 and the air supply connector 60 are respectively arranged on two opposite sides of the mounting part 23.

Optionally, the dust removing pipe 70 includes a first pipe 71 and a second pipe 72 that are communicated with each other, the first pipe 71 is connected to the tool body 20, and the second pipe 72 extends along the first direction X and penetrates through the through hole 102 of the mounting base 10.

Through setting up dust removal pipe 70, in welding process, dust removal pipe 70 way is used for the smoke and dust that the absorption produced when welding, avoids being in the light to, be favorable to protective gas to get into welding passageway 201 through removing dust, improve the welding quality of welding seam.

The welding tool 100 can be used for a welding process of a battery. During welding, the tool body 20 presses the confluence part and the pole to be welded. If the pressure of the welding tool 100 on the workpiece to be welded is too large, the elastic part 30 is compressed, the tool body 20 can move towards the mounting seat 10, namely, the distance between the tool body 20 and the mounting seat 10 can be adjusted according to the pressure, and the tool body 20 can always press the workpiece to be welded, so that the workpiece to be welded can be prevented from being damaged, and the false welding can also be avoided. Because the elastic member 30 is sleeved on the tool body 20, compared with a mode that a plurality of elastic members 30 need to be arranged, the elastic member 30 can provide balanced elastic force for the tool body 20, and the problem that the tool body 20 cannot return to cause insufficient soldering due to abnormal return of the elastic member 30 is avoided. Therefore, the welding tool 100 can enable the tool body 20 to rebound smoothly, the problem of insufficient solder is avoided, the welding effect is optimized, and the production quality and yield of the battery are improved.

A second aspect of the present application provides a welding apparatus, which includes a welding tool 100 and a welder, wherein the welder is disposed above the welding tool 100.

The welder may be a laser welder, an ultrasonic welder, a flame welder, etc., and the type of welder is not limited by this application. Taking a welder as a laser welder for example, laser emitted from the laser welder can be applied to a workpiece to be welded through a welding channel 201 in the tool body 20.

The welding equipment comprises the welding tool 100 provided by the first aspect, and the welding equipment also has the advantage of improving the welding quality.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; these modifications and substitutions do not depart from the spirit of the embodiments of the present application, and they should be construed as being included in the scope of the claims and description of the present application. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims

1. The utility model provides a welding frock, its characterized in that includes:

the mounting seat is internally provided with a mounting hole;

2. The welding tool of claim 1, wherein: the welding tool further comprises a clamping piece, the clamping piece is connected to one side of the mounting seat and provided with a guide hole, and the tool body penetrates through the guide hole.

3. The welding tool of claim 2, wherein: the clamping piece is detachably connected to the mounting seat, and the tool body is movably arranged in the guide hole in a penetrating mode along the first direction and can be clamped on the clamping piece.

4. The welding tool of claim 3, wherein: the tool comprises a tool body and is characterized in that a clamping protrusion is arranged on the outer peripheral surface of the tool body, two ends of the elastic part respectively abut against the inner wall of the mounting hole and the clamping protrusion, and one end of the clamping protrusion, which deviates from the elastic part, can abut against the clamping part or is arranged at intervals with the clamping part.

5. The welding tool of claim 4, wherein: the clamping piece is provided with a plurality of limiting bulges used for limiting and clamping the clamping bulges on the peripheral side of the guide hole.

6. The welding tooling of any one of claims 2-5, wherein: the tool body comprises a connecting seat and a welding nozzle which are connected, the welding channel penetrates through the connecting seat and the welding nozzle, the connecting seat is of a cylindrical structure, the elastic piece is sleeved on the connecting seat, and the welding nozzle is used for abutting against a workpiece to be welded.

7. The welding tool of claim 6, wherein: the tool body is characterized in that a first limiting portion is arranged on the connecting seat, the first limiting portion is movably arranged in the guide hole in a penetrating mode, and the first limiting portion is used for limiting the tool body to rotate.

8. The welding tooling of claim 7, wherein: the inner surface of the guide hole is provided with a second limiting part, the first limiting part and the second limiting part are respectively a first plane formed on the peripheral side wall of the connecting seat and a second plane formed on the hole wall of the guide hole, and the first plane and the second plane are oppositely arranged and are parallel to each other.

9. The welding tooling of any one of claims 2-5, wherein: the clamping piece comprises two clamping blocks which are oppositely arranged, the two clamping blocks are connected in an abutting mode and jointly enclose the guide hole, and the clamping blocks are fixedly connected to the mounting seat through fastening pieces.

10. The welding tool of claim 1, wherein: the welding frock still including connect in the air feed of frock body connects, the air feed connect with the welding passageway is linked together, the air feed connect be used for to protective gas lets in the welding passageway.

11. The welding tool according to claim 1 or 10, further comprising a dust removal pipe connected to the tool body, wherein the dust removal pipe is communicated with the welding channel.

12. A welding apparatus, comprising:

the welding fixture of any one of claims 1-11; and

and the welding device is arranged above the welding tool.