CN215469000U - Laser welding multipoint pressure floating adjustable device - Google Patents
Laser welding multipoint pressure floating adjustable device Download PDFInfo
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- CN215469000U CN215469000U CN202122242563.XU CN202122242563U CN215469000U CN 215469000 U CN215469000 U CN 215469000U CN 202122242563 U CN202122242563 U CN 202122242563U CN 215469000 U CN215469000 U CN 215469000U
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- pressing block
- laser welding
- driving mechanism
- adjustable device
- push rod
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a laser welding multipoint pressure floating adjustable device which comprises an upper pressing block and a lower pressing block which are respectively arranged on the upper side and the lower side of a base material to be welded, wherein the upper pressing block and the lower pressing block are arranged in parallel, the upper pressing block is connected with a first driving mechanism, the lower pressing block is connected with a second driving mechanism, the first driving mechanism and the second driving mechanism run independently, and the upper pressing block and the lower pressing block can move back and forth along the normal direction under the action of the corresponding driving mechanisms, so that the upper surface and the lower surface of the base material to be welded are uniformly clamped. By means of the laser welding tool, a mechanic can quickly debug the laser welding tool, the technical requirement of the mechanic is reduced, debugging time can be greatly shortened, the utilization rate is improved, and the yield of products is improved.
Description
Technical Field
The utility model relates to the field of lithium battery welding, in particular to a laser welding multipoint pressure floating adjustable device.
Background
In the process of laser welding of the aluminum-to-nickel tab of the secondary lithium battery, poor welding can be generated due to the influence of factors such as the thickness and the width of materials, welding parameters during laser welding, pressing force of welding tools and the like, so that the strip is broken at a welding position, the defects of blocking, strip breaking, scrapping and the like of a post-process section of equipment are reproduced, the strip is connected and started after multiple strips are broken, the downtime is too long, and the yield of products is low. The main reasons for poor welding are two, the first is the laser welding parameters, and the second is the uniformity of the tool pressure during welding. The laser welding parameters are generally not changed after debugging and matching, the welding process mainly controls the size and uniformity of pressing force F of a welding tool, a welding schematic diagram of a product is provided in fig. 1, and if the pressing force F applied by the welding tool is too large, a nickel strip can form shearing force on a lower aluminum strip, so that the tensile strength of the aluminum strip is damaged, and the aluminum strip at the aluminum-nickel lap joint is damaged.
In the middle, the pressing force of the welding tool is difficult to be uniformly and parallelly applied to the welding material due to the thickness difference of the aluminum strip and the nickel strip and the parallelism difference of the tool, which is the root cause of overlarge single-point pressing force; in actual production, the product models are multiple, and the thickness and the width of the material are different; therefore, the operator often needs to readjust the parallelism of the tool, and the time for replacing and adjusting the welding tool is quite long, which causes the low utilization rate of the equipment and the high labor intensity of the operator.
Under the background, a novel welding tool device is urgently needed, and a novel operation mode with digitally-controlled welding tool pressing force and adjustable force bearing point floating is provided, so that the model can be quickly debugged and converted.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems in the prior art and provides a laser welding multipoint pressure floating adjustable device, so that the parallelism between an upper pressing plate and a lower pressing plate can be quickly adjusted, uniform compression and multipoint force application can be realized, and the welding yield of an aluminum-to-nickel tab can be improved.
The technical effect to be achieved by the utility model is realized by the following technical scheme:
the utility model provides a laser welding multiple spot pressure adjustable device that floats, is including establishing last briquetting and the lower briquetting of treating welding substrate upper and lower both sides respectively, go up the briquetting with briquetting parallel arrangement down, it is connected with first actuating mechanism to go up the briquetting, the briquetting is connected with second actuating mechanism down, first actuating mechanism with second actuating mechanism mutually independent operation, it is corresponding separately to go up briquetting and lower briquetting actuating mechanism effect down, can be along normal direction round trip movement to the upper and lower surface homogeneous clamp who will treat welding substrate presss from both sides tightly.
Preferably, the bottom surface of the upper pressing block and the top surface of the lower pressing block are both parallel to the substrate to be welded, the area of the bottom surface of the upper pressing block is smaller than or equal to the area of the top surface of the lower pressing block, and when the upper pressing block and the lower pressing block translate in opposite directions to achieve abutting joint, the bottom surface of the upper pressing block is completely attached to the top surface of the lower pressing block.
Preferably, the upper pressing block is connected with a laser transmission piece.
Preferably, the motion composition of the first driving mechanism and the second driving mechanism adopts any one of an air cylinder push rod, an oil cylinder push rod and a screw pair mechanism.
Preferably, the device comprises a guide mechanism, the upper pressing block is connected with the end part of a push rod or a screw rod of the first driving mechanism, and the push rod or the screw rod longitudinally translates along the guide mechanism.
Preferably, the lower press block is connected with the end of a push rod or a screw rod of the second driving mechanism, and the push rod or the screw rod longitudinally translates along the guide mechanism.
Preferably, the guide mechanism comprises a rack, the guide mechanism is a plurality of guide holes formed in the rack in a penetrating manner, the driving ends of the first driving mechanism and the second driving mechanism are arranged below the rack, the push rod or the screw rod penetrates through the corresponding guide holes and extends upwards until the push rod or the screw rod is connected with the corresponding upper pressing block and the lower pressing block, and the push rod or the screw rod translates back and forth along the guide holes.
Preferably, the first driving mechanism is connected to both left and right sides of the upper press block.
Preferably, the upper pressing block and the lower pressing block are arranged two by two along the length direction of the base material to be welded.
Preferably, the device comprises a digital control system, and the digital control system is electrically connected with the first driving mechanism and the second driving mechanism.
The utility model is not only used for clamping the aluminum-to-nickel tab of the secondary lithium battery, but any scheme of adopting the technical scheme to press materials in parallel should be regarded as the protection scope of the technical scheme.
Compared with the prior art, the utility model has the beneficial effects that:
the aluminum-to-nickel welding machine tool in the lithium battery manufacturing industry at present provides pressing force by means of a single air cylinder, pressure is adjusted by a simple pressure adjusting valve to match pressure parameters during welding, if an upper welding fixture and a lower welding fixture are deformed, the pressing force of single-point control is difficult to match a multi-strip welding process, unevenness deformation is difficult to eliminate, unevenness can only be compensated by a mechanic with a gasket, the difference of skill experience and skills of the mechanic can directly influence the debugging effect, the mechanic often consumes long time to debug and cannot achieve the best effect, and great psychological pressure is caused to the mechanic.
The utility model provides a floating adjustable laser welding tool device, wherein an upper pressing block and a lower pressing block are used for pressing a base material to be welded (an aluminum strip and a nickel strip), the upper pressing block and the lower pressing block are respectively driven by a driving mechanism which operates independently and are translated along a longitudinal guide mechanism, and the non-parallelism of a matching jig is eliminated by skillfully utilizing the gap between a guide hole and a lifting rod, so that the parallelism of the upper pressing block and the lower pressing block is ensured, and the defect that part of pressing force is overlarge due to position deformation is overcome; in the process, the power source of each driving mechanism is regulated and controlled by a digital control system so as to achieve higher action precision.
By means of the laser welding tool, a mechanic can quickly debug the laser welding tool, the technical requirement of the mechanic is reduced, debugging time can be greatly shortened, the utilization rate is improved, and the yield of products is improved.
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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a general schematic view of a laser welding apparatus of the present embodiment;
FIG. 2 is a schematic structural diagram of a laser welding multipoint pressure floating adjustable device of the present embodiment;
FIG. 3 is a schematic illustration of a lamination of aluminum and nickel straps;
FIG. 4 is a schematic diagram showing the operation of embodiment 1;
FIG. 5 is a schematic diagram showing the operation of embodiment 2;
in the figure, 1-briquetting; 2-pressing the block; 3-a first drive mechanism; 31-a first push rod; 32-a first power cylinder; 4-a second drive mechanism; 41-a second push rod; 42-a second power cylinder; 5-an aluminum strip; 6-nickel strap; 7-gas source inlet; 8-a guide mechanism; 81-guide holes; 9-a frame; 10-a pipeline; 11-power source inlet; 12-a throttle valve; 13-an electric proportional valve; 14-a solenoid valve; 15-ball screw pair; 16-servo motor.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1 and 2, the embodiment provides a laser welding multipoint pressure floating adjustable device, which includes an upper pressing block 1 and a lower pressing block 2 respectively disposed on upper and lower sides of a substrate to be welded, where the upper pressing block 1 and the lower pressing block 2 are both horizontally disposed, the upper pressing block 1 is connected to a first driving mechanism 3, the lower pressing block 2 is connected to a second driving mechanism 4, the first driving mechanism 3 and the second driving mechanism 4 operate independently, and the upper pressing block 1 and the lower pressing block 2 can move back and forth in a vertical direction under the action of the respective corresponding driving mechanisms, so as to uniformly clamp upper and lower surfaces of the substrate to be welded.
Referring to fig. 3, in this embodiment, the substrates to be welded are specifically a stacked aluminum strip 5 and a stacked nickel strip 6, the bottom surface of the upper pressing block 1 is aligned with the nickel strip 6, the aluminum strip 5 is placed on the top surface of the lower pressing block 2, when the upper pressing block 1 and the lower pressing block 2 translate in opposite directions to reach abutment, the bottom surface of the upper pressing block 1 completely adheres to the top surface of the lower pressing block 2, so as to press the nickel strip 6 on the aluminum strip 5, and the upper pressing block 1 is connected with a laser transmission member, so that the floating adjustable device directly performs laser welding after pressing, and the integration of welding materials is completed.
Further, two liang of settings are made along the length direction who treats the welding substrate to last briquetting 1 and lower briquetting 2, and in process of production, the area welding substrate can be gone forward along the length direction of self, go up briquetting 1 and lower briquetting 2 and make even number array along this direction, help realizing the tight welding of the batch clamp of nickel strap 6 and aluminium strip 5, recycle subsequent shearing technology and can cut into a plurality of utmost point ears fast.
In the middle of, in order to avoid frock clamp to produce excessive extrusion or even fracturing the strip, the area of the top surface of the briquetting 2 is less than or equal to in the area of the top surface of briquetting 2 down, consequently when briquetting 2 was pressed to the briquetting 1 down, the section that compresses tightly of aluminium strip 5 and nickel strap 6 was supported and the butt completely, did not appear empting, so set up and can protect the surface quality of treating the welding substrate better.
During the pressing process of the pressing block, the first driving mechanism 3 and the second driving mechanism 4 are respectively acted by the power end and move along the guide mechanism 8, so that the transmission of position errors is reduced. In this embodiment, the floating adjustable device includes a frame 9, a plurality of vertical guide holes 81 are provided on the frame 9 in a penetrating manner, and the guide holes 81 form the guide mechanism 8.
The upper pressing block 1 and the lower pressing block 2 are located above the rack 9, the power ends of the first driving mechanism 3 and the second driving mechanism 4 are mounted below the rack 9, and the action ends of the driving mechanisms penetrate through the corresponding guide holes 81 and extend upwards until being connected with the corresponding upper pressing block 1 and the corresponding lower pressing block 2. Because each guide hole 81 is vertical to the clamping surface of the pressing block, the inclination trend of the upper pressing block 1 and the lower pressing block 2 can be eliminated by skillfully utilizing the gap between the guide hole 81 and the action end, and the parallelism of the two pressing blocks is further ensured.
From the above, the design key points of the present invention lie in providing a driving mechanism capable of stably driving the pressing block to move up and down, and the motion composition of the first driving mechanism 3 and the second driving mechanism 4 can be determined according to actual requirements, any motion mode capable of rapidly improving the parallelism of the pressing block can be used as the implementation mode of the present scheme, specifically, any one of the cylinder push rod, the cylinder push rod and the screw pair mechanism can be adopted, and the corresponding implementation scheme and technical effects are as follows,
example 1
The first driving mechanism 3 and the second driving mechanism 4 of this embodiment both adopt the form of a power cylinder and a push rod, two sides of the bottom of the upper pressing block 1 are respectively connected with a first push rod 31, the middle of the bottom of the lower pressing block 2 is connected with a second push rod 41, the first push rod 31 and the second push rod 41 both penetrate through a guide hole 81 on the frame 9 until movably inserted with a corresponding first power cylinder 32 and a corresponding second power cylinder 42, the interiors of the first power cylinder 32 and the second power cylinder 42 are divided into an upper part and a lower part, each part is communicated with a power source inlet 11 through a pipeline 10, so as to form an air supply or oil supply loop, a throttle valve 12 is arranged at a position of the pipeline 10 close to the power cylinders to limit the maximum flow, an electric proportional valve 13 and an electromagnetic valve 14 are arranged at a position of the pipeline 10 close to the power source inlet 11, the electric proportional valve 13 is linked with a control system, controlling air inflow or oil inlet according to parameters preset by a control system so as to adjust the relative pressing force of the upper pressing block 1 and the lower pressing block 2.
In the embodiment, for the condition that the pressing force requirement is large, the power source is suggested to adopt an oil cylinder form; for the case of a low pressing force requirement, the power source is suggested to take the form of a cylinder.
Example 2
The first driving mechanism 3 of the embodiment adopts a form of a servo motor and a ball screw pair, the middle of the bottom of the lower pressing block 2 is connected with a second driving mechanism 4 in a form of an air cylinder push rod, the air cylinder push rod mechanism is similar to that of the embodiment 1, and an electromagnetic valve 14 and a throttle valve 12 are arranged between the air cylinder push rod mechanism and an air source inlet 7; the two sides of the bottom of the upper pressing block 1 are respectively connected with a ball screw pair 15, the push rod and the ball screw pair 15 penetrate through a guide hole 81 on the rack 9 until the push rod and the ball screw pair are connected with an air source or a servo motor 16, the electric proportional valve 13 and the servo motor 16 are linked with a control system, and the movement amount of the upper pressing block 1 and the lower pressing block 2 is adjusted according to parameters preset by the control system so as to adjust the pressing force of the upper pressing block 1 and the lower pressing block 2.
From the above, no matter various motion structures are adopted, a digital control system is adopted as a control end of the driving mechanism, the digital control system is electrically connected with the first driving mechanism 3 and the second driving mechanism 4, and the digital control system implements numerical intelligent regulation and control on the power end of each driving mechanism according to preset parameters, so that higher action precision is achieved, and meanwhile, the labor intensity of a dispatcher is greatly reduced.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, and the scope of protection is still within the scope of the utility model.
Claims (10)
1. The utility model provides a laser welding multiple spot pressure adjustable device that floats, is including establishing last briquetting and the lower briquetting of waiting to weld the upper and lower both sides of substrate respectively, go up the briquetting with lower briquetting parallel arrangement, its characterized in that, it is connected with first actuating mechanism to go up the briquetting, lower briquetting is connected with second actuating mechanism, first actuating mechanism with second actuating mechanism mutually independent operation, it is in respectively corresponding to go up briquetting and lower briquetting under the actuating mechanism effect, can be along normal direction round trip movement to the upper and lower surface homogeneous clamp who will wait to weld the substrate.
2. The laser welding multipoint pressure floating adjustable device according to claim 1, wherein the bottom surface of the upper pressing block and the top surface of the lower pressing block are both parallel to the substrates to be welded, the area of the bottom surface of the upper pressing block is smaller than or equal to the area of the top surface of the lower pressing block, and when the upper pressing block and the lower pressing block are translated towards each other to achieve abutment, the bottom surface of the upper pressing block completely fits on the top surface of the lower pressing block.
3. The laser welding multipoint pressure floating adjustable device according to claim 2, wherein a laser transmission member is connected to the upper pressing block.
4. The laser welding multipoint pressure floating adjustable device according to claim 1, wherein the motion composition of the first driving mechanism and the second driving mechanism adopts any one of a cylinder push rod, a cylinder push rod and a screw pair mechanism.
5. The laser welding multipoint pressure floating adjustable device according to claim 4, comprising a guide mechanism, wherein the upper pressing block is connected with the end of a push rod or a lead screw of the first driving mechanism, and the push rod or the lead screw is longitudinally translated along the guide mechanism.
6. The laser welding multipoint pressure floating adjustable device according to claim 5, wherein the lower pressure block is connected with the end of a push rod or a lead screw of the second driving mechanism, and the push rod or the lead screw is longitudinally translated along the guide mechanism.
7. The laser welding multipoint pressure floating adjustable device according to claim 6, comprising a frame, wherein the guiding mechanism is a plurality of guiding holes penetrating through the frame, the driving ends of the first driving mechanism and the second driving mechanism are both arranged below the frame, the push rod or the screw rod extends upwards through the corresponding guiding holes until being connected with the corresponding upper pressing block and the corresponding lower pressing block, and the push rod or the screw rod translates back and forth along the guiding holes.
8. The laser welding multipoint pressure floating adjustable device according to claim 7, wherein the first driving mechanism is connected to both left and right sides of the upper pressing block.
9. The laser welding multipoint pressure floating adjustable device according to claim 1, wherein the upper pressing block and the lower pressing block are arranged two by two along the length direction of the base material to be welded.
10. The laser welding multipoint pressure floating adjustable device according to claim 1, comprising a digital control system, wherein the digital control system is electrically connected with the first driving mechanism and the second driving mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122242563.XU CN215469000U (en) | 2021-09-16 | 2021-09-16 | Laser welding multipoint pressure floating adjustable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122242563.XU CN215469000U (en) | 2021-09-16 | 2021-09-16 | Laser welding multipoint pressure floating adjustable device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215469000U true CN215469000U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122242563.XU Active CN215469000U (en) | 2021-09-16 | 2021-09-16 | Laser welding multipoint pressure floating adjustable device |
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| Country | Link |
|---|---|
| CN (1) | CN215469000U (en) |
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2021
- 2021-09-16 CN CN202122242563.XU patent/CN215469000U/en active Active
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