CN216720238U - Battery module assembly jig and battery module welding set - Google Patents
Battery module assembly jig and battery module welding set Download PDFInfo
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- CN216720238U CN216720238U CN202123188248.XU CN202123188248U CN216720238U CN 216720238 U CN216720238 U CN 216720238U CN 202123188248 U CN202123188248 U CN 202123188248U CN 216720238 U CN216720238 U CN 216720238U
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Abstract
The utility model relates to the technical field of batteries, in particular to a battery module assembling clamp and a battery module welding device. The battery module assembling clamp comprises a frame body, a side plate clamping and positioning mechanism, a cover plate pressing and positioning mechanism and a busbar positioning mechanism, wherein the frame body comprises a first mounting plate and a second mounting plate which are vertically arranged; the two side plate clamping and positioning mechanisms are oppositely arranged on the first mounting plate along the horizontal first direction and are used for positioning and mounting the side plates of the battery module; the two cover plate pressing and positioning mechanisms are oppositely arranged on the second mounting plate along the vertical direction and are used for clamping and positioning the cover plates of the battery module; two busbar positioning mechanism set up along the relative setting of horizontal second direction, and horizontal second direction sets up with horizontal first direction is perpendicular for the busbar in the location installation battery module. Through modular structure design, realize the assembly quick change, and can guarantee that each part location of battery module is accurate, when improving the operating efficiency, guarantee assembly welding quality.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery module assembling clamp and a battery module welding device.
Background
With the stricter requirements of the nation and the industry on the power battery pack technology, the technology and equipment level of each power battery pack is continuously improved in production so as to meet or exceed the national requirements on the power battery pack technology. The power battery pack integration is to form a power battery module by connecting single power batteries in series and parallel, and then integrate the power battery module into a power battery pack. When the single power batteries form the power battery module in a series-parallel connection mode, the single power batteries need to be connected in parallel or in series. Laser welding is a process in which a workpiece is irradiated with high-energy beam laser light to rapidly increase the working temperature, and the workpiece is melted and reconnected to form a permanent connection. The shear strength and the tear strength of laser welding are good. The welding quality of the tab can affect the conductivity, strength, air tightness, metal fatigue and corrosion resistance of the tab. The tab welding cold welding directly affects the stable performance of the battery, and the cold welding of one welding spot can cause the whole battery pack to work abnormally and even cause serious consequences. And the battery module is as the aggregate of battery product, and the welding quality of its module frame has directly decided the holistic intensity of module and security, has also directly decided the product goodness and the production efficiency of module in the production process.
The existing assembly fixture is complex in operation and multiple in steps, various different fixtures need to be switched from tab welding to outer frame welding, the assembly precision is poor, steps and gaps of welding seams cannot be effectively controlled and eliminated, the appearance, quality and performance of a product are directly affected, the assembly of cover plates is staggered, the upper cover plate and the lower cover plate are compressed tightly, the upper cover plate and the lower cover plate deform after being stressed unevenly due to the fact that the compression contact area is small, the flatness of a module cannot be guaranteed, great difficulty is brought to assembly, the assembly is required to be disassembled and assembled frequently, rapid assembly cannot be achieved, the reliability of assembly positioning cannot be guaranteed, the assembly time accounts for four fifths of the total production time, even if the welding speed is improved by a few degrees, the production efficiency can only be improved by 10%, and the quality of the welding seams of the product and the assembly consistency cannot be thoroughly guaranteed.
Therefore, there is a high necessity for a battery module assembling jig to solve the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
One object of the present invention is to provide a battery module assembling jig, which can ensure the reliability of assembling and positioning, has high assembling accuracy, can avoid the generation of weld gaps and steps during welding, and improve the appearance, quality and performance of a battery module.
Another object of the present invention is to provide a welding apparatus for a battery module, which can prevent the generation of weld gaps and steps during the welding process, improve the appearance, quality and performance of the battery module, and improve the production efficiency by using the above assembly jig for a battery module.
In order to realize the purpose, the following technical scheme is provided:
the battery module assembling clamp comprises a frame body, a side plate clamping and positioning module, a cover plate pressing and positioning module and a confluence row positioning module, wherein the frame body comprises a first mounting plate and a second mounting plate which are vertically arranged; the side plate clamping and positioning module comprises side plate clamping and positioning mechanisms, the two side plate clamping and positioning mechanisms are oppositely arranged on the first mounting plate along a horizontal first direction, and the side plate clamping and positioning module is used for positioning and mounting a side plate of the battery module; the cover plate pressing and positioning module comprises cover plate pressing and positioning mechanisms, the two cover plate pressing and positioning mechanisms are oppositely arranged on the second mounting plate along the vertical direction, and the cover plate pressing and positioning module is used for clamping and positioning a cover plate of the battery module; the bus positioning module comprises bus positioning mechanisms, the two bus positioning mechanisms are oppositely arranged along a horizontal second direction, the horizontal second direction is perpendicular to the horizontal first direction, and the bus positioning module is used for positioning and installing buses in the battery module. The battery module assembling clamp is designed through a modular structure, assembly quick change is achieved, accurate positioning of all parts of the battery module can be guaranteed, operation efficiency is improved, and meanwhile assembling and welding quality is guaranteed.
As an alternative to the battery module assembling jig, the side plate clamping and positioning mechanism comprises a side plate member and a side plate clamping driving assembly, and the side plate clamping plate is used for installing and fixing a side plate of the battery module; the output end of the side plate clamping driving assembly is in transmission connection with the side plate clamping plate and can drive the side plate clamping plate to move along the horizontal first direction. The side plate clamping and positioning mechanism can realize clamping and positioning of the side plates, avoids movement and dislocation of the side plates in the welding process, and guarantees welding precision and quality.
As an alternative scheme of the battery module assembling clamp, the side plate clamping driving assembly is driven by a screw rod nut and comprises a screw rod, a nut and a hand wheel, the screw rod extends along a horizontal first direction, the nut is matched with the screw rod, the side plate clamping plate is fixed on the nut, the hand wheel is connected to the end of the screw rod in a transmission mode, the nut can drive the side plate clamping plate to move along the screw rod by rotating the screw rod, clamping and positioning of the side plate of the battery module are achieved, and welding quality is guaranteed. In other embodiments, the side plate clamping drive assembly may also employ rack and pinion drive.
As an alternative of the battery module assembling jig, the side plate clamping and positioning module further comprises a caliper, the caliper is arranged on the first mounting plate and located below the side plate clamping plate, and the caliper is used for displaying the movement amount of the side plate clamping plate.
As an alternative of the battery module assembling jig, the cover plate pressing and positioning mechanism comprises a fixing plate, a cover plate pressing driving assembly and a cover plate pressing plate, and the fixing plate is fixed on the second mounting plate; the cover plate pressing driving assembly is arranged on the fixing plate; the cover plate pressing plate is in transmission connection with the output end of the cover plate pressing driving assembly, and the cover plate pressing driving assembly is used for driving the cover plate pressing plate to lift in the vertical direction. The cover plate pressing and positioning mechanism can clamp and position the cover plate, so that the cover plate is prevented from moving and dislocating in the welding process, and the welding precision and quality are ensured.
As battery module assembly jig's alternative, apron compresses tightly drive assembly and is the screw-nut drive, apron compresses tightly drive assembly and includes lead screw, nut and hand wheel, and the lead screw extends along vertical direction, nut and lead screw cooperation, and the apron pressure strip is fixed on the nut, and hand wheel transmission connects in the tip of lead screw, can make the nut drive the apron pressure strip and go up and down along vertical direction through rotatory lead screw, and then compresses tightly battery module's apron, guarantees welding quality. In other embodiments, the cover plate compression driving assembly can also be driven by a gear rack.
As an alternative to the battery module assembling jig, the bus bar positioning mechanism includes an upper positioning assembly and a lower positioning assembly, the upper positioning assembly is mountable on the upper end of the side plate clamping plate for positioning the upper end surface of the bus bar of the battery module, and the lower positioning assembly is mountable on the cover plate pressing plate for positioning the lower end surface of the bus bar of the battery module.
As an alternative of the battery module assembling jig, the upper positioning assembly includes an upper positioning plate extending in a horizontal first direction and an upper locking member having both ends detachably fixed to the side plate clamping plates by the upper locking member.
As an alternative of the battery module assembling jig, the lower positioning assembly comprises a lower positioning plate, a lower locking member and a lower positioning pin, the lower positioning plate extends along a horizontal first direction, two ends of the lower positioning plate are detachably fixed on the cover plate pressing plate through the lower locking member, a positioning hole matched with the lower positioning pin is formed in the lower positioning plate, and the lower positioning pin penetrates through the positioning hole to be matched and connected with the bus bar of the battery module.
As an alternative of the battery module assembling fixture, the cover plate pressing and positioning mechanism further comprises a floating pressing assembly, the floating pressing assembly comprises a pressing strip and a pressing bolt, the pressing strip is matched with the pressing bolt and is arranged on the fixing plate in a liftable mode, the pressing strip and the cover plate pressing plate are located on the same side of the fixing plate, and the pressing strip extends in the horizontal second direction and is used for pressing the bus bar positioning mechanism.
As an alternative of the battery module assembling jig, the battery module assembling jig further comprises a protection air pipe, the protection air pipe is arranged on the side plate clamping plate and can be connected with an external protection air supply source to provide protection air for the welding position of the battery module.
In a second aspect, a battery module welding apparatus is provided, which includes a welder and the battery module assembly jig as described above.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides a battery module assembling clamp which comprises a frame body, a side plate clamping and positioning module, a cover plate pressing and positioning module and a confluence row positioning module, wherein the frame body comprises a first mounting plate and a second mounting plate which are vertically arranged; the side plate clamping and positioning module comprises side plate clamping and positioning mechanisms, the two side plate clamping and positioning mechanisms are oppositely arranged on the first mounting plate along a horizontal first direction, and the side plate clamping and positioning module is used for positioning and mounting a side plate of the battery module; the cover plate pressing and positioning module comprises cover plate pressing and positioning mechanisms, the two cover plate pressing and positioning mechanisms are oppositely arranged on the second mounting plate along the vertical direction, and the cover plate pressing and positioning module is used for clamping and positioning a cover plate of the battery module; the bus positioning module comprises bus positioning mechanisms, the two bus positioning mechanisms are oppositely arranged along a horizontal second direction, the horizontal second direction is perpendicular to the horizontal first direction, and the bus positioning module is used for positioning and installing buses in the battery module. The battery module assembling clamp is designed through a modular structure, realizes quick assembling change, can ensure accurate positioning of each part of the battery module, and ensures the assembling and welding quality while improving the working efficiency.
According to the battery module welding device provided by the utility model, by applying the battery module assembling clamp, the welding seam gap and steps can be avoided in the welding process, the appearance, the quality and the performance of the battery module are improved, and the production efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings may be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic structural view of a battery module assembly jig according to an embodiment of the present invention;
fig. 2 is a top view of a battery module assembly jig according to an embodiment of the present invention;
fig. 3 is a side view of a battery module assembling jig according to an embodiment of the present invention.
Reference numerals:
100. an electric core; 200. a bus bar;
1. a frame body; 11. a first mounting plate; 12. a second mounting plate;
2. a side plate clamping and positioning mechanism; 21. side plate clamping plates; 22. a side plate clamping drive assembly; 23. a caliper;
3. the cover plate compresses the positioning mechanism; 31. a fixing plate; 32. the cover plate compresses the driving component; 33. a cover plate compression plate; 34. compressing the strips; 35. a hold-down bolt;
4. a busbar positioning mechanism; 41. an upper positioning assembly; 411. an upper positioning plate; 412. an upper locking member; 42. a lower positioning assembly; 421. a lower positioning plate; 422. a lower locking piece; 423. a lower positioning pin;
5. the trachea is protected.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention 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 figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection 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 "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used 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 description 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," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.
As shown in fig. 1 to fig. 3, the present embodiment provides a battery module assembling jig for clamping a battery module, so as to facilitate assembling and welding of the battery module and improve working efficiency.
Wherein, the battery module includes the frame and sets up in inside electric core 100, busbar 200 and the utmost point ear of frame, and the frame includes upper cover plate, lower apron, left side board, right side board, front end plate and back end plate.
The battery module assembling clamp comprises a frame body 1, a side plate clamping and positioning module, a cover plate pressing and positioning module and a busbar positioning module, wherein the frame body 1 comprises a first mounting plate 11 and a second mounting plate 12 which are vertically arranged; the side plate clamping and positioning module comprises side plate clamping and positioning mechanisms 2, the two side plate clamping and positioning mechanisms 2 are oppositely arranged on the first mounting plate 11 along a horizontal first direction, and the side plate clamping and positioning module is used for positioning and mounting a side plate of a battery module; the cover plate pressing and positioning module comprises cover plate pressing and positioning mechanisms 3, the two cover plate pressing and positioning mechanisms 3 are oppositely arranged on the second mounting plate 12 along the vertical direction, and the cover plate pressing and positioning module is used for clamping and positioning a cover plate of the battery module; the bus positioning module comprises bus positioning mechanisms 4, wherein the two bus positioning mechanisms 4 are arranged oppositely along a horizontal second direction, the horizontal second direction is perpendicular to the horizontal first direction, and the bus positioning module is used for positioning and installing a bus 200 in the battery module.
The battery module assembling clamp is designed through a modular structure, realizes quick assembling change, can ensure accurate positioning of each part of the battery module, and ensures the assembling and welding quality while improving the working efficiency.
Optionally, the side plate clamping and positioning mechanism 2 comprises a side plate clamping plate 21 and a side plate clamping driving assembly 22, wherein the side plate clamping plate 21 is used for installing and fixing a side plate of the battery module; the output end of the side plate clamping driving assembly 22 is in transmission connection with the side plate clamping plate 21 and can drive the side plate clamping plate 21 to move along the horizontal first direction.
Exemplarily, curb plate presss from both sides tight drive assembly 22 and is the screw-nut drive, curb plate presss from both sides tight drive assembly 22 and includes lead screw, nut and hand wheel, and the lead screw extends along horizontal first direction, and nut and lead screw cooperation, curb plate splint 21 are fixed on the nut, and hand wheel transmission connects in the tip of lead screw, can make the nut drive curb plate splint 21 remove along the lead screw through rotatory lead screw, realizes pressing from both sides tight location to the battery module curb plate, guarantees welding quality. In other embodiments, the side panel clamp drive assembly 22 may also employ rack and pinion drive.
Preferably, the side plate clamping and positioning module further includes a caliper 23, the caliper 23 is disposed on the first mounting plate 11 and located below the side plate clamping plate 21, and the caliper 23 is used for displaying a movement amount of the side plate clamping plate 21.
Optionally, one of the two side plate clamping and positioning mechanisms 2 is used for positioning and mounting a reference surface of a side plate of the battery module, and the other is used for positioning and mounting a non-reference surface, and the caliper 23 can be used in cooperation with the side plate clamping and positioning mechanism 2 used for positioning and mounting a non-reference surface, so that the movement amount of the side plate clamping plate 21 in the side plate clamping and positioning mechanism 2 can be rapidly and directly displayed, and the side plate of the battery module can be rapidly clamped and positioned.
In addition, can follow the curb plate splint 21 that the first direction of level removed through the setting, the piling up of the electric core 100 of being convenient for on the one hand is put, and the battery module of the adaptable different electric core 100 quantity of on the other hand improves this assembly jig's application scope, improve equipment utilization.
Optionally, the cover pressing and positioning mechanism 3 includes a fixing plate 31, a cover pressing and driving assembly 32 and a cover pressing plate 33, wherein the fixing plate 31 is fixed on the second mounting plate 12; the cover plate pressing driving assembly 32 is arranged on the fixing plate 31; the cover plate pressing plate 33 is in transmission connection with the output end of the cover plate pressing driving assembly 32, and the cover plate pressing driving assembly 32 is used for driving the cover plate pressing plate 33 to lift in the vertical direction. Through two apron pressure strip 33 in the apron compresses tightly positioning mechanism 3 compresses tightly the apron of battery module on the big face, guarantees the plane degree of apron, can realize eliminating the step between apron and the curb plate simultaneously, improves welding quality.
Preferably, two apron compresses tightly positioning mechanism 3 and is used for compressing tightly the support of the upper cover plate of battery module and lower apron respectively, the assembly of the battery module of being convenient for, and can fix a position the apron of battery module and compress tightly, guarantee welding quality when improving operating efficiency.
Exemplarily, the cover plate pressing driving assembly 32 is driven by a screw nut, the cover plate pressing driving assembly 32 comprises a screw rod, a nut and a hand wheel, the screw rod extends along the vertical direction, the nut is matched with the screw rod, the cover plate pressing plate 33 is fixed on the nut, the hand wheel is connected to the end of the screw rod in a transmission manner, the nut can drive the cover plate pressing plate 33 to lift along the vertical direction by rotating the screw rod, then the cover plate of the battery module is pressed, and the welding quality is ensured. In other embodiments, the cover plate pressing driving assembly 32 may also be driven by a rack and pinion.
In this embodiment, compress tightly the tight locating module of locating module and curb plate clamp through the apron, can fix a position the tight locating module of apron and curb plate to the battery module, can effectively eliminate the step between apron and the curb plate, avoid producing the step welding seam, influence the welding quality of battery module frame.
Optionally, the bus bar positioning mechanism 4 includes an upper positioning component 41 and a lower positioning component 42, the upper positioning component 41 can be mounted on the upper end of the side plate clamping plate 21 for positioning the upper end surface of the bus bar 200 of the battery module, and the lower positioning component 42 can be mounted on the cover plate pressing plate 33 for positioning the lower end surface of the bus bar 200 of the battery module. The bus bar 200 is positioned through the upper positioning assembly 41 and the lower positioning assembly 42, so that the welding effect of the bus bar 200 and the pole lugs can be ensured, and the insufficient welding of the pole lugs can be effectively restrained.
Preferably, the upper positioning assembly 41 includes an upper positioning plate 411 and an upper locking member 412, the upper positioning plate 411 extends in a horizontal first direction, and both ends thereof are detachably fixed to the side plate frames 21 by the upper locking member 412. The design structure is simple and compact, the installation and the use are convenient, and the working efficiency is improved.
Preferably, the lower positioning assembly 42 includes a lower positioning plate 421, a lower locking member 422 and a lower positioning pin 423, the lower positioning plate 421 extends along the horizontal first direction, two ends of the lower positioning plate are detachably fixed on the cover plate pressing plate 33 through the lower locking member 422, a positioning hole matched with the lower positioning pin 423 is formed in the lower positioning plate 421, and the lower positioning pin 423 passes through the positioning hole to be matched and connected with the busbar 200 of the battery module. In practical application, a plurality of bus bars 200 are generally arranged in parallel at one end of one battery module, and the bus bars 200 can be positioned and fixed by stages through the lower positioning pins 423, so that the positioning accuracy of the bus bars 200 and the tabs is ensured, and the welding quality is ensured.
Optionally, in order to further ensure the positioning of the cover plate and the side plate and to compress the busbar 200 at the same time, the cover plate compression positioning mechanism 3 further includes a floating compression assembly, the floating compression assembly includes a compression bar 34 and a compression bolt 35, the compression bar 34 is arranged on the fixing plate 31 in a way that the compression bolt 35 is matched with the compression bar 34 and is liftable, the compression bar 34 and the cover plate compression plate 33 are located on the same side of the fixing plate 31, and the compression bar 34 extends along the horizontal second direction and is used for compressing the busbar positioning mechanism 4. The whole large surface is tightly pressed, the end part of the large surface is provided with a movable layer which is independently adjustable, and the flatness of the whole large surface and the fitting of a welding seam are ensured.
Illustratively, a plurality of compression bolts 35 are arranged on one compression bar 34 at intervals, and each compression bolt 35 can be independently adjusted to apply pressure to the compression bar 34, so that the compression bar 34 is ensured to compress the side plate and the bus bar 200, the step between the side plate and the cover plate is eliminated, and the accurate positioning of the bus bar 200 is ensured.
Preferably, battery module assembly jig still includes protection trachea 5, and protection trachea 5 sets up on curb plate splint 21, and protection trachea 5 can be connected with external protection gas supply source for provide the protection gas to battery module welding position. When busbar 200 and utmost point ear welding to and apron and curb plate welding, provide the shielding gas through protection trachea 5, with guarantee welding quality, and need not to introduce the shielding gas equipment in addition, improve the operating efficiency, make assembly fixture integrate more highly, the function is more perfect.
The blowing structure of the welding shielding gas is integrated on the tool, the installation space is compact, and interference caused by the installation of the shielding gas pipe 5 at the welding head is avoided.
Preferably, battery module assembly jig still includes the upset module (not shown in the figure), and the upset module includes tilting mechanism, and two tilting mechanism set up along horizontal second direction symmetry, and 180 upsets of support body 1 can be realized through two tilting mechanism to the output and the second mounting panel 12 fixed connection of tilting mechanism to the assembly welding of battery module.
The embodiment also provides a battery module welding set, including welding machine and foretell battery module assembly jig, through using above-mentioned battery module assembly jig, can avoid producing welding seam clearance and step in welding process, improve the outward appearance, quality and the performance of battery module, improve production efficiency.
The process of assembling the battery module by using the battery module assembling clamp is as follows:
the lower reference plate is positioned and installed on the cover plate pressing plate 33 positioned below, and the left side plate and the right side plate are respectively installed on the left side plate clamping plate and the right side plate clamping plate 21;
stacking the battery cells 100 on a lower cover plate, and then adjusting the two side plate clamping and positioning mechanisms 2 to clamp and position the left and right side plates on the battery cell stacking body;
the floating compaction assembly is used for further adjusting and positioning the alignment cover plate and the side plate, and steps between the cover plate and the side plate are eliminated;
arranging the bus bars 200 at two ends of the battery cell stacking body, and positioning and clamping the bus bars 200 by using the upper positioning assembly 41 and the lower positioning assembly 42;
welding the tabs to the bus bar 200 by using a welding machine under the shielding gas supplied by the shielding gas pipe 5;
after the welding of the busbar 200 and the tabs is completed, the upper cover plate is pressed and buckled, then the frame body 1 is turned over by the turnover mechanism, the lower reference plate is removed, and after the lower cover plate is positioned and installed, the side plate and the cover plate are welded by a welding machine;
and finally, welding the end plate in another work area to complete the assembly welding operation of the battery module.
The battery module assembly fixture provided by the embodiment is innovative and technically innovated on the basis of the prior art, the operation process is simple, the stability and reliability are realized, the assembly quick change is realized, the positioning precision can be ensured when the battery cores 100 are stacked, the upper cover plate and the lower cover plate are tightly pressed by large surfaces, the rigidity of the busbar 200 is increased, the welding effect of the lugs is ensured, the gap of the welding seam of the outer frame can be effectively controlled within 0.2mm, the welding seam can be tightly pressed in a segmentation manner, the influence caused by the welding seam of the step is effectively eliminated, experiments prove that the structure effectively restrains the insufficient welding of the lugs, the lower couch of the welding seam of the outer frame, the welding seam deviation caused by the step, the welding quality is greatly improved, the one-station operation is effectively realized, the lugs can be directly circulated to the outer frame without dismounting or replacing the fixture, and the protective gas of the welding seam is directly integrated on the tool, the welding gun has the advantages of compact structure, avoidance of interference of the welding gun, realization of integration of the fixture, one-time assembly and one-time welding, saving of a large amount of production auxiliary working time, saving of 50-90% of assembly time, and great improvement of production efficiency and product quality.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. The utility model provides a battery module assembly jig for clamping battery module, its characterized in that, battery module assembly jig includes:
the rack body (1) comprises a first mounting plate (11) and a second mounting plate (12) which are vertically arranged;
the side plate clamping and positioning module comprises side plate clamping and positioning mechanisms (2), the two side plate clamping and positioning mechanisms (2) are oppositely arranged on the first mounting plate (11) along a horizontal first direction, and the side plate clamping and positioning module is used for positioning and mounting a side plate of the battery module;
the cover plate pressing and positioning module comprises cover plate pressing and positioning mechanisms (3), the two cover plate pressing and positioning mechanisms (3) are oppositely arranged on the second mounting plate (12) along the vertical direction, and the cover plate pressing and positioning module is used for clamping and positioning a cover plate of the battery module;
the bus positioning module comprises bus positioning mechanisms (4), wherein the two bus positioning mechanisms (4) are oppositely arranged along a horizontal second direction, the horizontal second direction is perpendicular to the horizontal first direction, and the bus positioning module is used for positioning and installing a bus (200) in the battery module.
2. The battery module assembling jig according to claim 1, wherein the side plate clamping and positioning mechanism (2) comprises:
the side plate clamping plate (21) is used for installing and fixing a side plate of the battery module;
and the output end of the side plate clamping driving assembly (22) is in transmission connection with the side plate clamping plate (21) and can drive the side plate clamping plate (21) to move along a horizontal first direction.
3. The battery module assembling jig according to claim 2, wherein the side plate clamping and positioning module further comprises a caliper (23), the caliper (23) is disposed on the first mounting plate (11) and located below the side plate clamping plate (21), and the caliper (23) is used for displaying the movement amount of the side plate clamping plate (21).
4. The battery module assembling jig according to claim 2, wherein the cover plate pressing and positioning mechanism (3) comprises:
a fixing plate (31) fixed to the second mounting plate (12);
a cover plate pressing driving assembly (32) arranged on the fixing plate (31);
the cover plate pressing plate (33) is in transmission connection with the output end of the cover plate pressing driving assembly (32), and the cover plate pressing driving assembly (32) is used for driving the cover plate pressing plate (33) to lift in the vertical direction.
5. The battery module assembling jig according to claim 4, wherein the bus bar positioning mechanism (4) comprises an upper positioning member (41) and a lower positioning member (42), the upper positioning member (41) being mountable on the upper end of the side plate clamping plate (21) for positioning the upper end faces of the bus bars (200) of the battery module, the lower positioning member (42) being mountable on the cover plate pressing plate (33) for positioning the lower end faces of the bus bars (200) of the battery module.
6. The battery module assembling jig according to claim 5, wherein the upper positioning assembly (41) comprises an upper positioning plate (411) and an upper clamping member (412), the upper positioning plate (411) extending in a horizontal first direction, both ends of which are detachably fixed to the side plate clamping plates (21) by the upper clamping member (412).
7. The battery module assembling jig according to claim 5, wherein the lower positioning assembly (42) comprises a lower positioning plate (421), a lower locking piece (422) and a lower positioning pin (423), the lower positioning plate (421) extends in a horizontal first direction, two ends of the lower positioning plate are detachably fixed on the cover plate pressing plate (33) through the lower locking piece (422), the lower positioning plate (421) is provided with a positioning hole matched with the lower positioning pin (423), and the lower positioning pin (423) passes through the positioning hole to be matched and connected with the busbar (200) of the battery module.
8. The battery module assembling jig of claim 5, wherein the cover plate pressing and positioning mechanism (3) further comprises a floating pressing assembly, the floating pressing assembly comprises a pressing bar (34) and a pressing bolt (35), the pressing bar (34) is arranged on the fixing plate (31) in a way of being matched with the pressing bolt (35) in a liftable way, the pressing bar (34) and the cover plate pressing plate (33) are located on the same side of the fixing plate (31), and the pressing bar (34) extends in a horizontal second direction and is used for pressing the bus bar positioning mechanism (4).
9. The battery module assembling jig according to any one of claims 2 to 8, further comprising a shielding gas pipe (5), wherein the shielding gas pipe (5) is disposed on the side plate clamping plate (21), and the shielding gas pipe (5) is connectable with an external shielding gas supply source for supplying shielding gas to the battery module welding site.
10. A battery module welding apparatus comprising a welding machine and the battery module assembling jig according to any one of claims 1 to 9.
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| CN202123188248.XU CN216720238U (en) | 2021-12-17 | 2021-12-17 | Battery module assembly jig and battery module welding set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117798597A (en) * | 2024-03-01 | 2024-04-02 | 江苏众钠能源科技有限公司 | Battery module repair equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117798597A (en) * | 2024-03-01 | 2024-04-02 | 江苏众钠能源科技有限公司 | Battery module repair equipment |
| CN117798597B (en) * | 2024-03-01 | 2024-05-24 | 江苏众钠能源科技有限公司 | Battery module repair equipment |
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