CN210649102U

CN210649102U - Laser welding fixture

Info

Publication number: CN210649102U
Application number: CN201921331416.6U
Authority: CN
Inventors: 吴学科; 陈荣军; 程志保
Original assignee: Shenzhen Geesun Intelligent Technology Co Ltd
Current assignee: Shenzhen Geesun Intelligent Technology Co Ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-06-02
Anticipated expiration: 2029-08-15

Abstract

The utility model provides a laser welding fixture relates to the welding technology field, this laser welding fixture, compress tightly subassembly and welding support seat including the welding, the welding support seat sets up in the below that the welding compressed tightly the subassembly, and the welding compresses tightly the subassembly including welding compact heap and actuating mechanism, and actuating mechanism is connected with the welding compact heap, and the welding compact heap sets up with the welding support seat relatively, has still seted up the gas hole on the welding compact heap, and the inside of welding compact heap is provided with the passageway of blowing that communicates with the gas hole, and the passageway downwardly extending that blows to the bottom of welding compact heap. Compared with the prior art, the utility model provides a laser welding fixture through the pressfitting power that produces of welding compact heap pressfitting on the welding supporting seat and the pressfitting power that the air current that the passageway of blowing blew off produced for pole piece and utmost point ear when the welding is prepared, the welding is in the process homoenergetic is guaranteed to laminate each other, avoids leading to pole piece and utmost point ear separation and influence welding quality because the pole piece warp in the welding process.

Description

Laser welding fixture

Technical Field

The utility model relates to the field of welding technique, particularly, relate to a laser welding anchor clamps.

Background

In the process of welding the pole lug by the lithium ion battery pole piece foil, the traditional welding mode adopts ultrasonic welding, and the ultrasonic welding foil and the pole lug can generate the following problems: insufficient discharge current in the formation discharge process, overlarge resistance and the like. A novel welding process mode is needed to replace the traditional ultrasonic welding, and the laser welding can avoid the process problem caused by the ultrasonic welding under the condition of ensuring the welding requirement.

The existing laser welding lug and pole piece foil area cannot control the fitting degree between two materials, particularly in the welding process, the pole piece foil area is deformed in the welding process due to the action of high temperature of laser, a gap exists between the lug and the pole piece foil area after the deformation, the two materials are welded to ensure the complete fitting between the two materials, and the phenomena of insufficient welding, non-welding, incapability of meeting the tensile force after welding and the like are caused slightly.

In view of this, it is very important to design and manufacture a laser welding fixture which can compensate for foil deformation, arching and gaps caused by laser energy and synchronously ensure that the tab and the foil area of the pole piece are completely attached.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can compensate because the foil that laser energy leads to warp, hunch-up, clearance, guarantee utmost point ear and pole piece foil district and laminate completely, improve welding quality.

The utility model is realized by adopting the following technical scheme.

The utility model provides a laser welding fixture, compress tightly subassembly and welding support seat including the welding, the welding support seat sets up the below that compresses tightly the subassembly in the welding, a welding for bear the weight of, the welding compresses tightly the subassembly including welding compact heap and actuating mechanism, actuating mechanism is connected with the welding compact heap, the welding compact heap sets up with the welding support seat relatively, a pressfitting is on a welding under actuating mechanism's drive, still offer the gas hole that is used for the air supply pipe assembly on the welding compact heap, the inside of welding compact heap is provided with the passageway of blowing that communicates with the gas hole, the passageway of blowing downwardly extending to the bottom of welding compact heap, a bottom of blowing is used for blowing towards a welding.

Furthermore, the welding compressing assembly further comprises dust removal pipelines arranged on two sides of the welding compressing block, air outlet grooves are formed in two sides of the bottom of the welding compressing block and communicated with the air blowing channel, and the dust removal pipelines are communicated with the air outlet grooves.

Further, the dust removal pipeline comprises an integrally arranged flaring portion and a round pipe portion, the flaring portion is detachably connected to the side wall of the welding and compressing block, and the flaring portion is covered on the air outlet groove.

Furthermore, a sealing lens for laser to pass through is arranged at the top end of the air blowing channel, and a sealing lens sealing cover is arranged at the end part of the air blowing channel.

Furthermore, the welding pressing block comprises a pressing block body and a welding pressing plate, the pressing block body is in transmission connection with the driving mechanism, the welding pressing plate is detachably arranged below the pressing block body, a welding through hole is formed in the welding pressing plate, and the welding through hole and the air blowing channel are arranged oppositely.

Furthermore, a positioning pin is arranged on the welding pressing plate, a pin hole is formed in the bottom of the pressing block body, the positioning pin is matched with the pin hole, a pin locking hole communicated with the pin hole is further formed in the side wall of the pressing block body, a locking pin is arranged in the pin locking hole, and the locking pin stretches into the pin hole and abuts against the positioning pin.

Further, actuating mechanism includes drive plate, loading board and first driving piece, loading board and welding compact heap fixed connection, and the drive plate setting is in the top of loading board, and first driving piece setting is on the drive plate and is connected with the loading board transmission for drive the loading board and be close to or keep away from the drive plate.

Further, the driving mechanism further comprises a guide rod, the guide rod is fixedly arranged on the driving plate, a linear bearing is further arranged on the bearing plate, and the guide rod sequentially penetrates through the linear bearing and the bearing plate.

Further, the welding support seat comprises an adsorption bottom plate and a bottom plate fixing seat, the adsorption bottom plate is fixedly arranged on the bottom plate fixing seat and is arranged opposite to the welding pressing block, and a containing groove used for containing a welding part is formed in the adsorption bottom plate.

Further, the welding support seat further comprises a lifting support seat, a lifting support roller and a second driving piece, the lifting support seat is connected with the bottom plate fixing seat, the lifting support roller is connected with the lifting support seat, and the second driving piece is arranged at the bottom of the lifting support seat and used for jacking the lifting support seat.

The utility model discloses following beneficial effect has:

the utility model provides a pair of laser welding anchor clamps places the combination welding piece that pole piece and utmost point ear formed on the welding supporting seat, and the pressfitting is on a welding piece under actuating mechanism's drive to the welding compact heap, simultaneously through external air supply pipe to through the gas blowing hole to gas blowing in the passageway, gas blowing towards a welding piece in the passageway of blowing, thereby form from last atmospheric pressure down, atmospheric pressure guarantees to have the pressfitting power between pole piece and the utmost point ear, makes pole piece and utmost point ear remain the laminating throughout in welding process. Compared with the prior art, the utility model provides a laser welding fixture makes the edge part of pole piece laminate each other through the pressfitting power that welding compact heap pressfitting produced on the welding support seat, and the pressfitting power that the air current that the passageway of blowing blew off produced makes the welding position of pole piece laminate each other for pole piece and utmost point ear when the welding is prepared, the welding is in the process homoenergetic guarantees to laminate each other, avoids influencing welding quality because the pole piece warp among the welding process and leads to pole piece and utmost point ear separation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a laser welding fixture provided by the present invention;

FIG. 2 is an assembled schematic view of the laser welding fixture of FIG. 1;

FIG. 3 is a schematic view of the weld hold-down assembly of FIG. 1 from a first perspective;

FIG. 4 is a schematic view of the welding clamping assembly of FIG. 1 from a second perspective;

FIG. 5 is a schematic structural diagram of the welding compact of FIG. 4;

FIG. 6 is a schematic view of the overall structure of the welding support seat shown in FIG. 1;

fig. 7 is a partial structural schematic view of the welding support seat in fig. 1.

Icon: 10-laser welding fixture; 100-welding a compression assembly; 110-welding the compact; 111-a compact body; 113-welding a pressure plate; 115-locating pins; 117-locking pins; 130-a drive mechanism; 131-a drive plate; 133-a carrier plate; 135-a first driving member; 137-a guide bar; 139-linear bearings; 150-a dust removal pipe; 151-flared portion; 153-round tube section; 155-a pipeline fixing seat; 170-an air blowing channel; 171-sealing the lens; 190-air blowing holes; 200-welding a supporting seat; 210-an adsorption bottom plate; 230-a base plate fixing seat; 231-a receiving groove; 250-lifting support seats; 270-lifting supporting rollers; 290-a second drive member; 300-laser emitting device.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the products of the present invention are usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.

First embodiment

Referring to fig. 1 to 5 in combination, the present embodiment provides a laser welding fixture 10, which can ensure that the pole piece and the tab can be attached together everywhere before welding and during welding, thereby ensuring the welding quality.

The laser welding fixture 10 provided by the embodiment comprises a welding pressing assembly 100 and a welding support seat 200, wherein the welding support seat 200 is arranged below the welding pressing assembly 100 and used for bearing a welding piece. The welding press assembly 100 is used in connection with a laser emitting device 300.

The welding pressing assembly 100 comprises a welding pressing block 110, a driving mechanism 130 and dust removal pipelines 150 arranged on two sides of the welding pressing block 110, the driving mechanism 130 is connected with the welding pressing block 110, the welding pressing block 110 is arranged opposite to a welding supporting seat 200 and used for being pressed on a welding part under the driving of the driving mechanism 130, a gas blowing hole 190 used for assembling a gas supply pipe is further formed in the welding pressing block 110, a gas blowing channel 170 communicated with the gas blowing hole 190 is arranged inside the welding pressing block 110, and the gas blowing channel 170 extends downwards to the bottom of the welding pressing block 110 and is used for blowing towards the welding part. The two sides of the bottom of the welding pressing block 110 are provided with air outlet grooves which are communicated with an air blowing channel 170, and the dust removing pipeline 150 is communicated with the air outlet grooves.

It should be noted that, in this embodiment, the front side surface and the rear side surface of the welding and compressing block 110 are both provided with air blowing holes 190, and for one use, one of the air blowing holes 190 is provided with an air nozzle, the air nozzle is connected with an external air supply pipeline, and the other air blowing hole 190 is plugged by a plug. Of course, two blowing holes 190 may be used to blow air simultaneously to increase the air pressure in the internal blowing channel 170.

In the present embodiment, the welding part is a joint assembly of the pole piece and the tab, but the welding part may be other types of welding objects, such as welding between two steel plates, and is not particularly limited herein. The laser emitting device 300 is disposed above the driving mechanism 130, and has a structure consistent with that of an existing laser welding structure, which is not described herein too much, and laser emitted from the laser emitting device 300 passes through the welding pressing block 110 and then directly acts on a welded part, thereby achieving a laser welding function.

It should be noted that, in this embodiment, the air blowing pipe is disposed in the middle of the welding compressing block 110 along the vertical direction, and is a sealing structure, an external air supply pipe is assembled on the air blowing hole 190, and the air blowing hole 190 is communicated with the upper portion of the air blowing channel 170, high-pressure air is introduced into the air blowing channel 170, and the high-pressure air is blown out downwards through the air blowing channel 170, and the high-pressure air flows into the dust removing pipe 150 through the air outlet grooves on both sides, on one hand, an air flow from top to bottom can be formed on the surface of the welded part, so that the pole piece can be attached to the pole lug, on the other hand, the high-pressure air enters the dust removing pipe 150 through both sides, and splashes or impurities generated by welding.

The dust removal pipe 150 includes a flared portion 151 and a round pipe portion 153, which are integrally formed, and the flared portion 151 is detachably connected to the sidewall of the welding and compressing block 110 and covers the air outlet groove. Specifically, the round tube 153 is connected to an external impurity collecting device, and a vacuum pump is further provided in the impurity collecting device, so that a negative pressure can be formed in the round tube 153 to assist in sucking the splashes from the flared portion 151 into the round tube 153. A dust removal cavity is formed between the flared part 151 and the side wall of the welding pressing block 110, the dust removal cavity is communicated with the gas outlet groove, and spatter generated by welding enters the dust removal cavity through the gas outlet groove and then is sent into the round pipe part 153.

It should be noted that, in this embodiment, the pipe fixing seat 155 is further disposed on the circular pipe portion 153, and the pipe fixing seat 155 is connected to the driving mechanism 130 and moves up and down synchronously with the welding and pressing block 110, so that the dust removal pipe 150 and the welding and pressing block 110 can move up and down synchronously.

In this embodiment, the top end of the air blowing passage 170 is provided with a sealing lens 171 through which the laser passes, and the sealing lens 171 is sealed at the end of the air blowing passage 170. Specifically, the sealing lens 171 is a transparent lens, and is connected to the upper end of the air blowing channel 170 in a sealing manner, so that the air blowing channel 170 is in a sealed state, and air leakage from the inside of the welding pressing block 110 is avoided.

The welding pressing block 110 comprises a pressing block body 111 and a welding pressing plate 113, the pressing block body 111 is in transmission connection with the driving mechanism 130, the welding pressing plate 113 is detachably arranged below the pressing block body 111, a welding through hole is formed in the welding pressing plate 113, and the welding through hole and the air blowing channel 170 are arranged oppositely. Specifically, the compact heap body 111 is rectangular, the welding clamp plate 113 is fixed at the bottom of the compact heap body 111 through bolted connection, the inside gas blowing channel 170 that still is provided with of compact heap body 111, the gas outlet groove has still been seted up to the bottom both sides of compact heap body 111, the welding clamp plate 113 encloses and establishes in the bottom of gas outlet groove for with the supplementary leading-in dust removal pipeline 150 of high-pressure gas in the gas blowing channel 170.

In this embodiment, the welding pressure plate 113 is provided with a positioning pin 115, the bottom of the pressing block body 111 is provided with a pin hole, the positioning pin 115 is matched with the pin hole, the side wall of the pressing block body 111 is further provided with a pin locking hole communicated with the pin hole, a locking pin 117 is arranged in the pin locking hole, and the locking pin 117 extends into the pin hole and abuts against the positioning pin 115. The welding pressing plate 113 and the pressing block body 111 are aligned through the positioning pin 115, and meanwhile, the locking pin 117 is arranged, so that the positioning pin 115 can be prevented from being pulled out during disassembly, and the pressing block body 111 and the welding pressing plate 113 are guaranteed to be relatively fixed.

In this embodiment, the middle of the welding pressing plate 113 is provided with a abdication opening corresponding to the air blowing channel 170 on the upper portion, and the welding pressing plate 113 is pressed on the welding part, and the abdication opening is a welding action position, so that the laser can pass through the air blowing channel 170 and act on the welding part to complete the laser welding work.

The driving mechanism 130 comprises a driving plate 131, a bearing plate 133, a first driving member 135 and a guide rod 137, the bearing plate 133 is fixedly connected with the welding pressing block 110, the driving plate 131 is arranged above the bearing plate 133, and the first driving member 135 is arranged on the driving plate 131 and is in transmission connection with the bearing plate 133 to drive the bearing plate 133 to be close to or far away from the driving plate 131. The guide rod 137 is fixedly arranged on the driving plate 131, the bearing plate 133 is further provided with a linear bearing 139, and the guide rod 137 sequentially penetrates through the linear bearing 139 and the bearing plate 133.

In this embodiment, the bearing plate 133 is sleeved on the welding pressing block 110 and moves synchronously with the welding pressing block 110. Specifically, the bearing plate 133 is provided with a socket, and the pressing block body 111 is arranged on the socket in a penetrating manner and is in interference fit with the bearing plate 133, so that the pressing block body 111 and the bearing plate 133 are connected into a whole. Of course, the pressing block body 111 can also be directly welded with the bearing plate 133 or connected with the bearing plate through a locating key to realize power transmission.

In this embodiment, the first driving member 135 is a cylinder, and two sides of the driving plate 131 are respectively provided with a cylinder, and the bearing plate 133 is driven and pressed by the cylinders at two sides, so that the bearing plate 133 is stressed more uniformly. In addition, the guide bars 137 are also two, the two guide bars 137 are respectively arranged on two sides of the driving plate 131, the linear bearings 139 are also two, the two linear bearings 139 are respectively arranged on the bearing plates 133 on two sides of the pressing block body 111, and the pressing process can be more stable through guiding by the guide bars 137 on two sides.

It should be noted that a connecting block is further disposed below the bearing plate 133, a guide hole for the guide post to freely pass through is also formed in the connecting block, the connecting block is fixedly connected with the bearing plate 133, and the pipe fixing seat 155 on the dust removal pipe 150 is fixedly connected with the connecting block, so that the dust removal pipe 150 and the bearing plate 133 can synchronously move.

Referring to fig. 6 and 7 in combination, the welding support base 200 includes an adsorption base plate 210 and a base plate fixing base 230, the adsorption base plate 210 is fixedly disposed on the base plate fixing base 230 and is disposed opposite to the welding pressing block 110, and an accommodating groove 231 for accommodating a welding part is disposed on the adsorption base plate 210.

In this embodiment, the adsorption base plate 210 is a vacuum adsorption plate, and a plurality of vacuum adsorption holes are opened on the vacuum adsorption plate, so that the pole piece and the tab can be adsorbed on the base plate, and the positions of the pole piece and the tab can be fixed before welding, so that the positions of the pole piece and the tab are unchanged when the compression blocks 110 are conveniently welded for compression. Meanwhile, the vacuum adsorption plate still keeps adsorption action in the welding process, and the pole piece and the pole lug are fixed in an auxiliary mode.

In this embodiment, the accommodating groove 231 is T-shaped, the width, thickness and length of the accommodating groove are adapted to the transportation size of the tab, and the adsorption base plate 210 is opened to adsorb after the tab is transported in place, so as to adsorb and attach the pole piece to the tab.

The welding support seat 200 further comprises a lifting support seat 250, a lifting support roller 270 and a second driving member 290, the lifting support seat 250 is connected with the bottom plate fixing seat 230, the lifting support roller 270 is connected with the lifting support seat 250, and the second driving member 290 is arranged at the bottom of the lifting support seat 250 and used for jacking the lifting support seat 250.

In this embodiment, the second driving element 290 is a guiding cylinder, and the guiding cylinder lifts the lifting support seat 250 along the vertical direction, so that the vacuum absorption plate can be lifted towards the welding pressing block 110, and the pressing effect of the welding pressing block 110 is further improved.

It should be noted that, in this embodiment, there are two lifting support seats 250, two lifting support seats 250 are disposed oppositely, there are two lifting support rollers 270, the two lifting support rollers 270 are disposed in parallel, one end of each lifting support roller 270 is connected to one of the lifting support seats 250, and the other end is connected to the other lifting support seat 250. The bottom of each lifting support seat 250 is provided with a guide cylinder, and the two lifting support seats 250 are synchronously lifted through the guide cylinders.

It should be noted that, in this embodiment, the welding pressing block 110 is pressed on the welding part, and meanwhile, the air blowing channel 170 forms downward air pressure above the welding part, and the adsorption bottom plate 210 adsorbs the welding part thereon, and three acting forces are used together, so that the welding part can be kept relatively fixed before and during welding, and different welding objects of the welding part can be kept attached to each other.

In summary, the laser welding fixture 10 provided in this embodiment has the following working principle: the pole piece passes through the roller motion, and welding compact heap 110 lifting under the cylinder effect, utmost point ear pass through transport structure and carry to adsorbing on the bottom plate 210, adsorb bottom plate 210 and pass through the fixed utmost point ear of storage tank 231, and utmost point ear carries the back that targets in place and adsorbs bottom plate 210 opens and adsorbs, with pole piece foil and utmost point ear adsorption and laminating, welding compact heap 110 pushes down through the cylinder. The welding compression block 110 compacts the edge of the welding area, the inside of the air blowing channel 170 is in a sealed state, the upper portion is guaranteed to be sealed and permeable to adopted laser through the laser protection sealing lens 171, air blowing is started through the air blowing hole 190, internal air pressure is discharged through two sides of the welding compression block 110 to form air pressure from top to bottom, and the air pressure guarantees the pressing force of the pole piece foil and the pole lugs. Laser light is emitted at the joint of the pole piece foil and the pole lug, the foil is welded to deform due to energy in the welding process, and the foil is bonded with the pole lug through the internal air pressure. The dust removal pipelines 150 on the two sides are opened for dust removal, and splashes and dust generated by welding are sucked away. Compared with the prior art, the laser welding fixture 10 provided by the embodiment can compensate for foil deformation, arching and gaps caused by laser energy, ensure that the tab and the pole piece foil are completely attached, and improve the welding quality.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a laser welding fixture, its characterized in that, compresses tightly subassembly and welding support seat including the welding, the welding support seat sets up the welding compresses tightly the below of subassembly for bear the welding piece, the welding compresses tightly the subassembly including welding compact heap and actuating mechanism, actuating mechanism with the welding compact heap is connected, the welding compact heap with the welding support seat sets up relatively, is used for the pressfitting is in under actuating mechanism's the drive on the welding piece, still offer the gas hole that is used for the air supply pipe assembly on the welding compact heap, the inside of welding compact heap be provided with the channel of blowing of gas hole intercommunication, the channel of blowing downwardly extending to the bottom of welding compact heap, be used for towards the welding piece blows.

2. The laser welding fixture of claim 1, wherein the welding clamping assembly further comprises dust removal pipes disposed on two sides of the welding clamping block, gas outlet grooves are disposed on two sides of the bottom of the welding clamping block, the gas outlet grooves are communicated with the gas blowing channel, and the dust removal pipes are communicated with the gas outlet grooves.

3. The laser welding jig of claim 2, wherein the dust removal pipe includes a flared portion and a round pipe portion that are integrally provided, and the flared portion is detachably attached to a side wall of the welding pressing block and covers the gas outlet groove.

4. The laser welding jig according to claim 1, wherein a sealing lens through which laser light passes is provided at a top end of the gas blowing passage, and the sealing lens is sealed at an end of the gas blowing passage.

5. The laser welding fixture of claim 1, wherein the welding pressing block comprises a pressing block body and a welding pressing plate, the pressing block body is in transmission connection with the driving mechanism, the welding pressing plate is detachably arranged below the pressing block body, a welding through hole is formed in the welding pressing plate, and the welding through hole is opposite to the air blowing channel.

6. The laser welding fixture of claim 5, wherein the welding pressure plate is provided with a positioning pin, the bottom of the pressing block body is provided with a pin hole, the positioning pin is matched with the pin hole, the side wall of the pressing block body is further provided with a pin locking hole communicated with the pin hole, a locking pin is arranged in the pin locking hole, and the locking pin extends into the pin hole and abuts against the positioning pin.

7. The laser welding fixture of claim 1, wherein the driving mechanism comprises a driving plate, a bearing plate and a first driving member, the bearing plate is fixedly connected to the welding compact, the driving plate is disposed above the bearing plate, and the first driving member is disposed on the driving plate and is in transmission connection with the bearing plate for driving the bearing plate to approach or move away from the driving plate.

8. The laser welding jig of claim 7, wherein the driving mechanism further comprises a guide rod fixedly disposed on the driving plate, and a linear bearing is further disposed on the carrier plate, and the guide rod sequentially passes through the linear bearing and the carrier plate.

9. The laser welding jig of claim 1, wherein the welding support base comprises an absorption bottom plate and a bottom plate fixing base, the absorption bottom plate is fixedly arranged on the bottom plate fixing base and is opposite to the welding pressing block, and an accommodating groove for accommodating the welding part is formed in the absorption bottom plate.

10. The laser welding jig of claim 9, wherein the welding support further comprises a lifting support, a lifting support roller and a second driving member, the lifting support is connected to the bottom plate fixing seat, the lifting support roller is connected to the lifting support, and the second driving member is disposed at the bottom of the lifting support for lifting the lifting support.