CN220921387U - Battery module welding fixture - Google Patents

Abstract

The utility model relates to the technical field of battery processing and discloses a battery module welding fixture which comprises a base frame, an end clamping assembly and a lateral clamping assembly; the base frame is provided with a locating pin; the end clamping assembly comprises a mounting seat, an end driving piece, a pressing plate, a pressure detection piece and a bolt; the end driving piece is used for driving the mounting seat to move relative to the base frame, the pressing plate is connected with the mounting seat, the pressure detection piece is arranged between the pressing plate and the mounting seat, and the bolt is connected with the pressing plate; the lateral clamping assembly comprises a clamping seat, a lateral driving piece and a welding seam adjusting piece; the lateral driving piece is used for driving the clamping seat to move relative to the base frame. Positioning pins are arranged on the base frame to position the middle end plates, the lateral clamping assemblies clamp the two sides, the end clamping assemblies press the front end plates on the battery cells, positioning accuracy of the front end plates is guaranteed, dimensional accuracy of assembled battery modules is guaranteed, positioning accuracy between the front end plates and the side plates is guaranteed, welding seams are avoided, connection strength is guaranteed, and service life is prolonged.

Description

Battery module welding fixture

Technical Field

The utility model relates to the technical field of battery processing, in particular to a battery module welding tool.

Background

The battery module typically includes a battery receiving assembly, a battery pack, a power connection cord, a harness clip, and a signal acquisition assembly. The battery accommodating assembly generally comprises an inner middle end plate, a partition plate, an outer front end plate and a side plate, wherein the middle end plate and the partition plate are arranged during installation, the battery cells are arranged and installed, the front end plate and the side plate are arranged on the periphery after the assembly is completed, and then the front end plate and the side plate are welded and fixed, so that the assembly processing of the battery module is realized.

The existing battery module is assembled and processed, the front end plate is pressed by the spring press usually, but positioning deviation occurs due to unidirectional pressing, and then the whole battery module is caused to deviate in size, gaps occur at welding positions between the front end plate and the side plates due to the deviation in size, and therefore the connection strength of the welding positions is affected, and the service life of the battery module is affected.

Disclosure of utility model

The utility model aims to solve the technical problems that:

when the battery module is assembled, the positioning deviation causes the size deviation, thereby affecting the welding quality and reducing the service life.

In order to solve the technical problems, the utility model provides a battery module welding tool, comprising:

The base frame is provided with a positioning pin;

The end clamping assemblies are connected with the base frame and are oppositely arranged on two sides of the positioning pin along the first direction; the end clamping assembly comprises a mounting seat, an end driving piece, a pressing plate, a pressure detection piece and a bolt; the mounting seat is movably arranged on the base frame, the end driving piece is respectively connected with the base frame and the mounting seat, the end driving piece is used for driving the mounting seat to move relative to the base frame, the pressing plate is connected with the mounting seat, the pressure detection piece is arranged between the pressing plate and the mounting seat, and the bolt is connected with the pressing plate; and

The lateral clamping assemblies are connected with the base frame and are oppositely arranged at two sides of the positioning pin along the second direction; the lateral clamping assembly comprises a clamping seat, a lateral driving piece and a welding seam adjusting piece; the clamping seat is movably arranged on the base frame, the lateral driving piece is respectively connected with the base frame and the clamping seat, the lateral driving piece is used for driving the clamping seat to move relative to the base frame, and the welding seam adjusting piece is oppositely arranged at two ends of the clamping seat along a first direction;

Wherein the first direction intersects the second direction.

In one embodiment, the pedestal comprises a base plate and a tooling plate; the tooling plate is arranged on the base plate, and the locating pin is arranged on the tooling plate.

In one embodiment, the positioning pins are oppositely arranged at two sides of the tooling plate along the second direction; the fixture plate is provided with an adjusting seat, the adjusting seat is provided with at least two adjusting holes, and the locating pin is arranged in the adjusting holes in a penetrating mode.

In one embodiment, the end clamp assembly further comprises a quick clamp; the quick clamp corresponds to the setting position of the bolt, and the quick clamp and the bolt are oppositely arranged on the pressing plate.

In one embodiment, the end clamp assembly further comprises a locking element; the locking piece is connected with the mounting seat, and the locking piece is oppositely arranged on two sides of the pressing plate along the second direction.

In one embodiment, the locking element comprises a fixed seat, a sliding rod, a push plate, a caliper, a pressing block and an elastic element; the fixing seat is connected with the mounting seat, the sliding rod is movably connected with the fixing seat, the pushing plate is connected with the sliding rod, the caliper is fixed on the fixing seat and penetrates through the fixing seat to be connected with the pushing plate, the caliper is used for pushing the pushing plate to the direction close to the bolt, the pressing block is movably arranged on one side, close to the bolt, of the pushing plate, and the elastic piece is elastically supported between the pushing plate and the pressing block.

In one embodiment, the end drive comprises a screw, a handle, and a wire sleeve; the screw rod is movably connected with the base frame, the handle is installed at one end of the screw rod, the screw sleeve is sleeved on the screw rod, the screw sleeve is connected with the mounting seat, and the screw sleeve is in threaded connection with the screw rod.

In one embodiment, a sliding rail and a sliding block are arranged between the mounting seat and the base frame; the sliding rail is connected with the base frame, the sliding rail is in a strip shape and is arranged in parallel with the screw rod, the sliding block is connected with the mounting seat, and the sliding block is arranged on the sliding rail in a sliding mode.

In one embodiment, the weld adjuster comprises a support block, a threaded rod, a threaded block, and a top block; the supporting block is connected with the clamping seat, the threaded rod is movably arranged on the supporting block, the threaded rod penetrates through the supporting block and is connected with the threaded block, the threaded block is sleeved on the outer side of the threaded rod, the threaded block is in threaded connection with the threaded rod, and the top block is connected with the threaded block.

In one embodiment, the top block is provided with a guide rod; the guide rod is cylindrical and penetrates through the supporting block, the guide rod is arranged in parallel with the threaded rod, and the guide rod is movably connected with the supporting block.

Compared with the prior art, the welding tool for the battery module has the beneficial effects that:

Through set up the locating pin on the bed frame, can advance centering end plate fix a position before the equipment, press from both sides tightly through side direction clamping assembly when assembling, rethread tip clamping assembly presses the front end plate on the electric core, guarantees the positioning accuracy to the front end plate, ensures the dimensional accuracy after the battery module equipment, and then guarantees the positioning accuracy between front end plate and the curb plate, avoids appearing the welding seam, guarantees joint strength, increase of service life.

The position of the front end plate is positioned by arranging the bolt on the pressing plate, the position of the side plate is adjusted by the welding seam adjusting piece, the positioning accuracy of the front end plate is ensured, the joint position of the side plate and the front end plate is tight, the welding reliability is ensured, the overall strength of the battery module is improved, and the service life is prolonged.

Through setting up the quick clamp to set up quick clamp and bolt relatively on the clamp plate, effectively prevent that the front end plate from deviate from at extruded in-process, guarantee the accuracy of front end plate location.

Drawings

Fig. 1 is a schematic structural view of a welding tool for a battery module according to an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of a portion of circle A in FIG. 1;

FIG. 3 is a schematic view of a portion of the structure after the lateral clamping assembly is hidden;

FIG. 4 is a schematic exploded view of the end clamp assembly with the end drive hidden;

FIG. 5 is a schematic view of the structure of the end drive;

fig. 6 is an exploded view of the lateral clamp assembly.

The meaning of the reference numerals in the drawings are:

100. welding a battery module;

10. A base frame; 11. a positioning pin; 15. a substrate; 16. a tooling plate; 17. an adjusting seat; 18. an adjustment aperture;

20. An end clamp assembly; 21. a mounting base; 211. a slide rail; 215. a slide block; 22. an end driver; 221. a screw rod; 222. a handle; 223. a silk sleeve; 23. a pressing plate; 24. a pressure detecting member; 25. a plug pin; 26. a quick clamp; 27. a locking member; 271. a fixing seat; 272. a slide bar; 273. a push plate; 274. a caliper; 275. pressing blocks; 276. an elastic member;

30. A lateral clamping assembly; 31. a clamping seat; 32. a lateral drive member; 33. a weld adjuster; 331. a support block; 332. a threaded rod; 333. a screw block; 334. a top block; 335. and a guide rod.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

It should be noted that, referring to fig. 1, the X axis intersects with the Y axis, and for convenience of description, the X axis is defined as a first direction and the Y is defined as a second direction. Preferably, the first direction is perpendicular to the second direction.

Referring to fig. 1 to 6, a battery module welding tool 100 according to an embodiment of the utility model includes a base frame 10, an end clamping assembly 20, and a lateral clamping assembly 30. The base frame 10 is provided with a positioning pin 11, and the positioning pin 11 is used for positioning the middle end plate, so that the positioning accuracy of the installation position of the middle end plate is improved. The end clamping assembly 20 is connected with the base frame 10, the end clamping assembly 20 is oppositely arranged at two sides of the positioning pin 11 along the first direction, and the end clamping assembly 20 is used for installing a front end plate; the end clamping assembly 20 comprises a mounting seat 21, an end driving piece 22, a pressing plate 23, a pressure detecting piece 24 and a bolt 25; the mount pad 21 activity sets up on bed frame 10, and the end drive piece 22 is connected bed frame 10 and mount pad 21 respectively, and end drive piece 22 is used for driving the relative bed frame 10 of mount pad 21 and removes, and clamp plate 23 is connected with mount pad 21, and pressure detection piece 24 sets up between clamp plate 23 and mount pad 21, and bolt 25 is connected with clamp plate 23, and clamp plate 23 is used for pressing the front end plate to establish on the electric core, and this pressure detection piece 24 is used for detecting the pressure that applys the front end plate to control the compression accuracy control to the electric core. The lateral clamping assembly 30 is connected with the base frame 10, and the lateral clamping assembly 30 is oppositely arranged at two sides of the positioning pin 11 along the second direction; the lateral clamping assembly 30 comprises a clamping seat 31, a lateral driving piece 32 and a welding seam adjusting piece 33; the holder 31 activity sets up on bed frame 10, and bed frame 10 and holder 31 are connected respectively to side direction driving piece 32, and side direction driving piece 32 is used for driving the relative bed frame 10 of holder 31 and removes, and welding seam adjusting piece 33 relatively sets up the both ends at holder 31 along first direction, and this holder 31 is used for pressing the curb plate to establish in the both sides of electric core, and this welding seam adjusting piece 33 is used for adjusting the angle of curb plate installation, and then realizes the fine setting of curb plate position, guarantees curb plate and front end plate closely laminating, guarantees follow-up welding process's reliability.

Further, the base frame 10 includes a base plate 15 and a tooling plate 16. The substrate 15 is in a straight plate shape, an extension plane of the substrate 15 is parallel to a common plane of the first direction and the second direction, and the substrate 15 is used for supporting the whole battery module welding fixture 100; the tooling plate 16 is erected on the base plate 15, the tooling plate 16 is in a straight plate shape, and an extension plane where the tooling plate 16 is positioned is parallel to an extension plane where the base plate 15 is positioned. In this embodiment, the positioning pin 11 is disposed on the tooling plate 16 in a strip shape, the assembly work of the battery module is performed on the tooling plate 16, and the positioning pin 11 is perpendicular to the tooling plate 16.

Further, the positioning pins 11 are oppositely arranged at two sides of the tooling plate 16 along the second direction, so that the same middle end plate is positioned through the two sides, and the positioning accuracy is ensured. The tooling plate 16 is provided with an adjusting seat 17, the adjusting seat 17 is arranged on one side, far away from the base plate 15, of the tooling plate 16, the adjusting seat 17 is provided with at least two adjusting holes 18, the adjusting holes 18 are in a circular through hole shape, the adjusting holes 18 are arranged on the adjusting seat 17 at intervals along the second direction, the positioning pins 11 are arranged in the adjusting holes 18 in a penetrating mode, the positioning pins 11 are arranged in different adjusting holes 18 in a penetrating mode, the positioning effect on middle end plates of different sizes is achieved, and therefore the use adaptability of the device is improved.

Further, the mounting base 21 is movably connected with the tooling plate 16, so that the end clamping assemblies 20 at two ends can be close to or far away from each other along the first direction. The end driver 22 is for driving the mount 21 to move in the first direction. It will be appreciated that the end driver 22 may be one of a cylinder, a hydraulic cylinder, a linear motor, a rack and pinion structure, or a four bar structure, where the specific driving manner of the end driver 22 is not limited, so long as the drivable mounting seat 21 is ensured to move in the first direction. In this embodiment, the end driver 22 includes a screw 221, a handle 222, and a wire sleeve 223. The screw rod 221 is movably connected with the base frame 10, the screw rod 221 is in a cylindrical shape and extends along a first direction, the screw rod 221 is arranged between the base plate 15 and the tooling plate 16, and the screw rod 221 can rotate relative to the base frame 10; the handle 222 is arranged at one end of the screw rod 221, and the handle 222 is used for being gripped by a human hand to drive the screw rod 221 to rotate; the screw sleeve 223 is sleeved on the screw rod 221, the screw sleeve 223 is connected with the mounting seat 21, the screw sleeve 223 is in threaded connection with the screw rod 221, and then the screw rod 221 is rotated to drive the screw sleeve 223 to move in the first direction, so that the synchronous movement of the mounting seat 21 is driven.

Further, a sliding rail 211 and a sliding block 215 are disposed between the mounting base 21 and the base frame 10. The sliding rail 211 is connected with the base frame 10, and the sliding rail 211 is arranged in a strip shape and parallel to the screw rod 221; the sliding block 215 is connected with the mounting seat 21, the sliding block 215 is arranged on the sliding rail 211 in a sliding way, and the sliding rail 211 and the sliding block 215 guide the relative movement between the mounting seat 21 and the base frame 10, so that the movement stability is ensured.

Further, the pressing plate 23 is connected to the mounting base 21 in a straight plate shape, the pressing plate 23 is provided on a side where the mounting bases 21 are close to each other at both ends, the pressing plate 23 is used to abut against the front end plate, and the front end plate is pressed against the battery cell by the pressing plate 23. The pressure detection piece 24 is arranged between the pressing plate 23 and the mounting seat 21, and the pressure detection piece 24 is used for detecting the pressure applied by the pressing plate 23 to the front end plate, so that the compression amount of the front end plate to the battery cell is controlled through the pressure value, and the dimensional accuracy of the assembled battery module is further ensured. The bolt 25 is rectangular, and the bolt 25 corresponds the bottom that sets up at clamp plate 23, and clamp plate 23 is close to one side of frock board 16 promptly, and this bolt 25 perpendicular to frock board 16, bolt 25 are used for carrying out location installation to the front end board, and then improve the positioning accuracy of front end board. In this embodiment, the end clamp assembly 20 also includes a quick clamp 26. The quick clamp 26 corresponds to the setting position of the bolt 25, the quick clamp 26 and the bolt 25 are oppositely arranged on the pressing plate 23, namely, the quick clamp 26 is arranged at the top of the pressing plate 23, the front end plate is pressed on the bolt 25 through the quick clamp 26, further, upward sliding in the front end plate bearing process is prevented, the accuracy of the front end plate mounting position is ensured, and the size assembly accuracy of the battery module is ensured.

Further, the end clamp assembly 20 also includes a locking member 27. The locking piece 27 is connected with the mounting seat 21, the locking piece 27 is oppositely arranged at two sides of the pressing plate 23 along the second direction, and the locking piece 27 is used for pressing the front end plate so as to lock the position of the front end plate and prevent the front end plate from moving. In this embodiment, the locking member 27 includes a fixing base 271, a sliding rod 272, a pushing plate 273, a caliper 274, a pressing block 275 and an elastic member 276. The fixed seat 271 is connected with the mounting seat 21, and the fixed seat 271 moves together with the mounting seat 21; the sliding rod 272 is cylindrical, the sliding rod 272 extends along a first direction, the sliding rod 272 is movably connected with the fixing seat 271, and the sliding rod 272 can move along the first direction relative to the fixing seat 271; the push plate 273 is connected with the slide bar 272, the push plate 273 is in a straight plate shape, and the push plate 273 is arranged in parallel with the press plate 23; the caliper 274 is fixed on the fixed seat 271 and connected with the push plate 273 through the fixed seat 271, and the caliper 274 is used for pushing the push plate 273 towards the direction approaching the bolt 25; the pressing block 275 is arranged on one side of the push plate 273, which is close to the bolt 25, and the pressing block 275 is used for abutting against the front end plate, so as to fix the arrangement position of the front end plate and prevent the front end plate from moving; the elastic member 276 is elastically supported between the push plate 273 and the pressing block 275 to elastically press the pressing block 275 against the front end plate, thereby reducing the impact load on the locking member 27 and prolonging the service life of the locking member 27.

Further, the lateral clamping assembly 30 is used for pressing a side plate on the battery core, the side plate is arranged on two sides of the battery core along the second direction, and the front end plate is arranged on two sides of the battery core along the first direction, so that the side plate and the front end plate are welded and fixed to form a peripheral frame of the battery module; the middle end plate and the partition plate are correspondingly inserted in the interval of the arrangement of the battery cells, and are used for improving the strength of the whole battery module.

Further, the clamping seat 31 is movably disposed on the base frame 10, the clamping seat 31 can move along the second direction relative to the base frame 10, the clamping seats 31 of the lateral clamping assemblies 30 on two sides are disposed opposite to each other, and the clamping seats 31 are abutted against the side plates to press the side plates on the battery cells. The side wall driving member is used for driving the clamping seat 31 to move along the second direction relative to the base frame 10. It will be appreciated that the lateral driving member 32 may be one of a cylinder, a hydraulic cylinder, a linear motor, a rack and pinion structure, or a four bar structure, where the specific driving manner of the lateral driving member 32 is not limited, and it is sufficient to ensure that the drivable holder 31 moves in the second direction. In this embodiment, the specific structure of the lateral driving member 32 is the same as that of the end driving member 22, and the screw 221 is also adopted, which will not be described herein.

Further, the welding seam adjusting piece 33 is used for propping against the side plate, and further adjusts the setting angle of the side plate in a propping mode, so that the side plate is tightly attached to the front end plate, and further the reliability of subsequent welding is guaranteed. In the present embodiment, the welding seam adjusting member 33 includes a supporting block 331, a threaded rod 332, a threaded block 333, and a top block 334. The supporting block 331 is connected with the clamping seat 31, the supporting block 331 is in a straight plate shape, and the supporting block 331 is perpendicular to the tooling plate 16; the threaded rod 332 is movably disposed on the supporting block 331, the threaded rod 332 is cylindrical, the threaded rod 332 extends along the second direction, and the threaded rod 332 passes through the supporting block 331 to be connected with the threaded block 333; the threaded block 333 is sleeved on the outer side of the threaded rod 332, and the threaded block 333 is in threaded connection with the threaded rod 332; the ejector block 334 is connected with the screw block 333, and then the ejector position of the ejector block 334 to the side plate can be adjusted by rotating the screw rod 332, so as to adjust the setting angle of the side plate. In the present embodiment, four weld adjusters 33 are provided on the same holder 31 to improve the angle adjustment accuracy of the weld adjusters 33.

Further, a guide rod 335 is provided on the top block 334. The guide rod 335 is cylindrical and penetrates through the supporting block 331, the guide rod 335 is arranged in parallel with the threaded rod 332, the guide rod 335 is movably connected with the supporting block 331, the guide rod 335 is used for guiding the moving direction of the jacking block 334, the accuracy of the threaded rod 332 for adjusting the position of the jacking block 334 is further ensured, and the connection reliability of the welding position of the side plate and the front end plate is ensured.

The working process of the utility model is as follows: when in assembly, the middle end plate is positioned on the tooling plate 16 through the positioning pins 11, after the position of the middle end plate is determined, the electric cores are arranged on the two sides of the middle end plate, and the partition plate is arranged between the electric cores; after the arrangement of the battery cells is completed, the clamping seats 31 on the two sides are driven to mutually approach through the lateral driving piece 32, and the battery cells are extruded, so that the battery cells are tightly attached to the partition plates; the front end plate is positioned and installed on one side of the pressing plate 23, which is close to the battery cell, through a bolt 25, and is fixed through a quick clamp 26; the pressing plates 23 at the two ends are driven to be close to each other by the end driving piece 22, the front end plate is pressed on the battery cell by the pressing plates 23, the pressing force applied by the pressing plates 23 is controlled by the pressure detection piece 24, and after the preset pressing force is reached, the pressing blocks 275 are pressed on the front end plate by the calipers 274, so that the front end plate is fixed; after the front end plate is fixed, the clamping seat 31 is separated from the battery cell through the lateral driving piece 32, the side plate is placed between the clamping seat 31 and the battery cell, the side plate is pressed on the battery cell through the lateral driving piece 32, the setting angle of the side plate is finely adjusted through the threaded rod 332 until the side plate is tightly attached to the front end plate, and the side plate is welded and fixed to complete the assembly work of a battery module.

In summary, the embodiment of the utility model provides the welding tool 100 for the battery module, which has the beneficial effects that:

through setting up locating pin 11 on bed frame 10, can advance centering end plate fix a position before the equipment, press from both sides tightly through side direction clamp assembly 30 when assembling, rethread tip clamp assembly 20 presses the front end plate on the electric core, guarantees the positioning accuracy to the front end plate, ensures the dimensional accuracy after the battery module equipment, and then guarantees the positioning accuracy between front end plate and the curb plate, avoids appearing the welding seam, guarantees joint strength, increase of service life.

The position of the front end plate is positioned by arranging the bolt 25 on the pressing plate 23, the position of the side plate is adjusted by the welding seam adjusting piece 33, the positioning accuracy of the front end plate is ensured, the joint position of the side plate and the front end plate is tight, the welding reliability is ensured, the integral strength of the battery module is improved, and the service life is prolonged.

Through setting up quick clamp 26 to set up quick clamp 26 and bolt 25 relatively on clamp plate 23, effectively prevent that the front end plate from deviate from at extruded in-process, guarantee the accuracy of front end plate location.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A battery module welding fixture (100), comprising:

A base frame (10), wherein a positioning pin (11) is arranged on the base frame (10);

An end clamping assembly (20) connected with the base frame (10), wherein the end clamping assembly (20) is oppositely arranged at two sides of the positioning pin (11) along a first direction; the end clamping assembly (20) comprises a mounting seat (21), an end driving piece (22), a pressing plate (23), a pressure detecting piece (24) and a bolt (25); the mounting seat (21) is movably arranged on the base frame (10), the end driving piece (22) is respectively connected with the base frame (10) and the mounting seat (21), the end driving piece (22) is used for driving the mounting seat (21) to move relative to the base frame (10), the pressing plate (23) is connected with the mounting seat (21), the pressure detecting piece (24) is arranged between the pressing plate (23) and the mounting seat (21), and the bolt (25) is connected with the pressing plate (23); and

The lateral clamping assemblies (30) are connected with the base frame (10), and the lateral clamping assemblies (30) are oppositely arranged on two sides of the positioning pin (11) along the second direction; the lateral clamping assembly (30) comprises a clamping seat (31), a lateral driving piece (32) and a welding seam adjusting piece (33); the clamping seat (31) is movably arranged on the base frame (10), the lateral driving piece (32) is respectively connected with the base frame (10) and the clamping seat (31), the lateral driving piece (32) is used for driving the clamping seat (31) to move relative to the base frame (10), and the welding seam adjusting piece (33) is oppositely arranged at two ends of the clamping seat (31) along a first direction;

Wherein the first direction intersects the second direction.

2. The battery module welding fixture (100) according to claim 1, wherein the base frame (10) comprises a base plate (15) and a fixture plate (16); the tooling plate (16) is erected on the base plate (15), and the locating pin (11) is arranged on the tooling plate (16).

3. The battery module welding fixture (100) according to claim 2, wherein the positioning pins (11) are oppositely arranged at two sides of the fixture plate (16) along the second direction; the fixture plate (16) is provided with an adjusting seat (17), the adjusting seat (17) is provided with at least two adjusting holes (18), and the locating pin (11) is arranged in the adjusting holes (18) in a penetrating mode.

4. The battery module welding tooling (100) of claim 1, wherein the end clamping assembly (20) further comprises a quick clamp (26); the quick clamp (26) corresponds to the arrangement position of the bolt (25), and the quick clamp (26) and the bolt (25) are oppositely arranged on the pressing plate (23).

5. The battery module welding fixture (100) of claim 1, wherein the end clamp assembly (20) further comprises a locking member (27); the locking piece (27) is connected with the mounting seat (21), and the locking piece (27) is oppositely arranged at two sides of the pressing plate (23) along the second direction.

6. The battery module welding fixture (100) according to claim 5, wherein the locking member (27) comprises a fixing seat (271), a sliding rod (272), a push plate (273), a caliper (274), a pressing block (275) and an elastic member (276); fixing base (271) with mount pad (21) are connected, slide bar (272) with fixing base (271) swing joint, push pedal (273) with slide bar (272) are connected, calliper (274) are fixed on fixing base (271) and pass fixing base (271) with push pedal (273) are connected, calliper (274) are used for with push pedal (273) are close to bolt (25) direction promotes, press block (275) activity sets up push pedal (273) are close to one side of bolt (25), elastic component (276) elastic support be in push pedal (273) with press block (275) between.

7. The battery module welding fixture (100) of claim 1, wherein the end driver (22) comprises a screw (221), a handle (222), and a wire sleeve (223); the screw rod (221) is movably connected with the base frame (10), the handle (222) is installed at one end of the screw rod (221), the screw sleeve (223) is sleeved on the screw rod (221), the screw sleeve (223) is connected with the mounting seat (21), and the screw sleeve (223) is in threaded connection with the screw rod (221).

8. The battery module welding fixture (100) according to claim 7, wherein a sliding rail (211) and a sliding block (215) are arranged between the mounting seat (21) and the base frame (10); the sliding rail (211) is connected with the base frame (10), the sliding rail (211) is in a strip shape and is arranged in parallel with the screw rod (221), the sliding block (215) is connected with the mounting seat (21), and the sliding block (215) is arranged on the sliding rail (211) in a sliding mode.

9. The battery module welding tool (100) according to claim 1, wherein the weld adjuster (33) comprises a support block (331), a threaded rod (332), a threaded block (333), and a top block (334); the support block (331) with holder (31) are connected, threaded rod (332) activity sets up on support block (331), threaded rod (332) pass support block (331) with screw thread piece (333) are connected, screw thread piece (333) cover is established the outside of threaded rod (332), screw thread piece (333) with threaded rod (332) threaded connection, kicking block (334) with screw thread piece (333) are connected.

10. The battery module welding fixture (100) according to claim 9, wherein a guide rod (335) is provided on the top block (334); the guide rod (335) is cylindrical and penetrates through the supporting block (331), the guide rod (335) is arranged in parallel with the threaded rod (332), and the guide rod (335) is movably connected with the supporting block (331).